Chemical Engineering
Kim Lo Han
Abstract
Network methods are one of the most widely used groundwater modeling tools that have become widespread and popular over the last two decades. In this research, with a new approach to network methods, these methods are introduced as a numerical model to simulate the movement of groundwater. With the development ...
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Network methods are one of the most widely used groundwater modeling tools that have become widespread and popular over the last two decades. In this research, with a new approach to network methods, these methods are introduced as a numerical model to simulate the movement of groundwater. With the development of this network model, a non-systematic model has been proposed to solve the flow in an arbitrary network. Although many of these problems occur on the surface of the earth, these pollutants enter groundwater after penetrating the earth. After joining the groundwater, these pollutants are transferred by moving groundwater and reach rivers, lakes and wells. On the other hand, the limited groundwater has made the groundwater increasingly important as a source of human drinking water. One of the first steps required to estimate the behavior of groundwater is to find a mathematical model that the application of these models in turn requires the collection of information. By using experimental systems, the cause of errors caused by human error or human ignorance can be greatly reduced and eliminated. For this reason, many studies have been done on issues such as maintenance of a wellhead, design of drinking water supply systems, estimation of movement and transfer of pollutants in the aquifer, etc., and mathematical models for these problems have been presented.
Chemical Engineering
Andi Johnson
Abstract
Mathematical models can be described as a description of a system with mathematical language. This is done by introducing the system under study with a series of equations. Interpreter equations of the system are obtained based on the laws governing that system, boundary conditions, initial conditions ...
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Mathematical models can be described as a description of a system with mathematical language. This is done by introducing the system under study with a series of equations. Interpreter equations of the system are obtained based on the laws governing that system, boundary conditions, initial conditions and physical properties of the system under study. These models make it easier and faster to investigate the effect of various parameters on the system response. Once the mathematical model of a system is obtained, they can be solved analytically or numerically depending on the complexity of the equations. If the model presented is valid for a range of real numbers assigned to variables, it will be a continuous model, and if the model is valid for specific numbers in a range and for all real numbers in that range, it will be a model will be discrete. If the system does not respond to changes in time, the proposed model is called permanent. If the passage of time affects the response of the system, the proposed model is called a non-sustainable model.
Medicine
Khosro Kolahdouzan; Behrooz Nazari
Abstract
Ankle arthroplasty and total ankle arthroplasty are two important treatments for end-stage degenerative ball. Its results on the biomechanics of the medial foot are not sufficient to determine which is better. This study compared the biomechanical parameters of feet treated with ankle arthrodesis, feet ...
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Ankle arthroplasty and total ankle arthroplasty are two important treatments for end-stage degenerative ball. Its results on the biomechanics of the medial foot are not sufficient to determine which is better. This study compared the biomechanical parameters of feet treated with ankle arthrodesis, feet treated with total ankle arthroplasty, and healthy feet using statistical analysis. A validated tripod finite element model was designed to simulate the stance phase of gait. The results showed that total ankle arthroplasty provides more stable plantar pressure distribution than ankle arthrodesis. Among all replacements, the mean scaphoid joint had the highest contact pressure of 3.17 MPa. Surgery does not result in deep subscalar fusion. In both surgical models, an increase was achieved in the maximum metatarsals, especially in the second and third metatarsals. This study allows us to look at the internal biomechanics of foot defects and feet treated with total ankle arthroplasty and ankle arthrodesis during walking.
Medicine
Abdolreza Mehdinavaz Aghdam; Fariborz Rousta
Abstract
Introduction: NSAIDs are widely used in the treatment of back pain as they avoid most of the side effects of opioids such as respiratory depression, sedation, hallucinations, euphoria, addiction, shortening of bowel movements, periods and constipation. They are mostly used for mild to moderate pain where ...
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Introduction: NSAIDs are widely used in the treatment of back pain as they avoid most of the side effects of opioids such as respiratory depression, sedation, hallucinations, euphoria, addiction, shortening of bowel movements, periods and constipation. They are mostly used for mild to moderate pain where patients can tolerate oral medications. Ketorolac trometamol is a parenteral NSAID, thus eliminating the need for patients to avoid entering the body, which is a problem immediately after abdominal surgery. Ketorolac inhibits prostaglandin synthesis by inhibiting the cyclooxygenase system. Material and Methods: At PACU, patients receive morphine at the discretion of the counseling program. All patients were given PCA morphine (1 mg bolus, 5 min lockout, 4-hour limit 30 mg) after discharge from the unit. Medicated analgesia is administered by the Pain Unit and stopped on the third postoperative day if the patient is urinating, has used less than 30 mg of morphine in the last 12 hours, and has less than 4/10 pain. During this time, all patients received 500 mg of BID oral naproxen supplemented with 1000 mg of oral acetaminophen every 6 hours.Results: The ketorolac group held this drug until day 6, when all eight patients were hospitalized. Two patients in the ketorolac group developed anastomotic leakage early after surgery and their care was excluded from further analysis due to significant differences in the study. The first leak occurred 4 days later in a 37-year-old man who had undergone a sigmoidectomy for diverticulitis with peritonitis. Conclusion: The main effect of short hospital stay is uncertain, possibly due to insufficient power for early decision making. Anastomotic leakage rate was higher than normal, especially in the ketorolac group, but there is no example of this in other studies and we can only evaluate it as negative.
Medicine
Mohsen Nabiuni; Jaber Hatam; Maryam Milanifard; Elham Seidkhani; Amin Jahanbakhshi
Abstract
Peripheral neuropathy is the result of damage to nerves outside the brain and spinal cord and often causes weakness, numbness and pain, usually in the hands and feet. It can also affect other parts and functions of the body such as digestion, urination and blood circulation. The peripheral nervous system ...
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Peripheral neuropathy is the result of damage to nerves outside the brain and spinal cord and often causes weakness, numbness and pain, usually in the hands and feet. It can also affect other parts and functions of the body such as digestion, urination and blood circulation. The peripheral nervous system is responsible for sending information from the brain and spinal cord to other parts of the body. Also, peripheral nerves send sensory information to the central nervous system. Peripheral neuropathy can be caused by severe injuries, infections, metabolic problems, hereditary causes, and exposure to toxic substances, one of the most common causes of which is diabetes. People with peripheral neuropathy usually experience throbbing, burning, or tingling pain, and in many cases, symptoms improve. Especially if the cause is a treatable problem. Medicine can also reduce the pain of peripheral neuropathy. There are different types of peripheral neuropathy caused by different causes. These cases range from carpal tunnel syndrome to nerve damage due to diabetes. All types of peripheral neuropathy as a group are especially common in people over 55 years of age. This condition affects 3-4% of people in this group. Neuropathies are usually categorized based on the problems they cause and their causes. There are also terms that indicate how severe the nerve damage is.
Applied Chemistry
Ebadollah Amouzad Mahdiraji
Abstract
High and low voltage cables are among the most frequently utilized pieces of equipment in the power system and are subject to a variety of problems for a number of different causes. In spite of their increased reliability in airways, cables, whether power or distribution cables, are typically transported ...
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High and low voltage cables are among the most frequently utilized pieces of equipment in the power system and are subject to a variety of problems for a number of different causes. In spite of their increased reliability in airways, cables, whether power or distribution cables, are typically transported underground. As a result, they are more difficult to repair and may even need to be replaced in the event of a fault; for this reason, it is crucial to locate the fault as soon as possible. As is obvious from the research's title, the Fourier transform and modal transform methods are employed in this work to determine the kind and position of faults. This allows us to assess how effective the chosen method is at identifying and finding faults in subsurface infrastructure. The Fourier transform method, followed by the Modal transform, is anticipated to have a significant advantage in this study in terms of speed and accuracy when identifying the kind and location of defects. The nature and position of the defect are identified in the meanwhile using the detection and location indicators, which, according to simulations, will operate effectively. To show that these methods are accurate, the sample model is simulated. The exact and quick performance of the suggested strategy is confirmed by the simulation results from the MATLAB and EMTP/ATP software.
Medicine
Parham Maroufi; Mahdi Nazari
Abstract
Introduction: This systematic review aims to evaluate the analgesic effect of intravenous dexamethasone in patients undergoing volar plate surgery for distal radius fractures. The findings of this review will provide valuable insights into the potential role of dexamethasone as an adjunctive analgesic ...
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Introduction: This systematic review aims to evaluate the analgesic effect of intravenous dexamethasone in patients undergoing volar plate surgery for distal radius fractures. The findings of this review will provide valuable insights into the potential role of dexamethasone as an adjunctive analgesic agent in this surgical setting. By synthesizing the available evidence, this review aims to contribute to the existing literature and guide clinical decision-making regarding postoperative pain management strategies. Material and Methods: Data extraction was performed independently by two reviewers using a standardized data extraction form. The following information was collected: study characteristics (author, year of publication, study design), patient demographics (sample size, age, sex), surgical details (type of volar plate surgery, anesthesia technique), intervention details (dose, timing, and duration of intravenous dexamethasone administration), control group characteristics, outcome measures, and relevant results. Any discrepancies were resolved through discussion and consensus. Results: The primary outcome measure assessed in the included studies was postoperative pain intensity. Pain intensity scores were evaluated using various validated pain rating scales, including the visual analog scale (VAS) and numerical rating scale (NRS). Secondary outcome measures included postoperative opioid consumption, time to first analgesic request, duration of analgesic effect, adverse effects related to dexamethasone administration, and patient satisfaction scores. Conclusion: this systematic review provides evidence supporting the analgesic effect of intravenous dexamethasone following volar plate surgery for distal radius fractures. Dexamethasone effectively reduces postoperative pain intensity, opioid consumption, and the need for rescue analgesia. The sustained analgesic effect and favorable safety profile make dexamethasone a promising adjunctive analgesic in this surgical setting.
Chemical Engineering
Martin Zbuzant
Abstract
According to international standards, sulfur in fuels used in the transportation industry, as one of the most important polluting industries, should be reduced to around 10 ppmw, while many refineries around the world produce sulfur fuels with more than 1000 ppmw. One of the new and cost-effective methods ...
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According to international standards, sulfur in fuels used in the transportation industry, as one of the most important polluting industries, should be reduced to around 10 ppmw, while many refineries around the world produce sulfur fuels with more than 1000 ppmw. One of the new and cost-effective methods of reducing sulfur among all existing methods is photocatalytic oxidation methods. Another advantage of designed catalysts is that while they are used in the desulfurization process, the oxidation and adsorption processes take place rather than in separate steps (which in turn increases cost and time), due to the structural properties of this. The catalyst of both phases takes place simultaneously and simultaneously during one phase. In reactor experiments, the oxidative desulfurization (ODS) process of model diesel fuel, including the resistant compound of d-benzothiophene in n-shop solvent with 100 ppmw sulfur, was performed under mild operating conditions such as ambient temperature and pressure without hydrogen and the effect of operating parameters such as catalyst mass. Amount and concentration of H2O2 oxidant, type and amount of light radiation, amount of dopant and type of catalyst on the percentage of conversion of sulfur compounds and in other words on the efficiency of the study process and showed that increasing the amount of catalyst, amount and concentration of auxiliary oxidant and the amount of dopant to Certain will increase the efficiency and more than that will reduce the efficiency of the desulfurization process.
Medicine
Seyedeh Zahra Nazardani; Shohreh Nourizadeh Dehkordi; Ali Ghorbani
Abstract
Evaluating the master’s degree program in Sports Physiotherapy in order to improve the quality of education in this field. The need to pay attention to the effectiveness and efficiency of the education and improving the system of higher education by becoming more aware of the factors involved is ...
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Evaluating the master’s degree program in Sports Physiotherapy in order to improve the quality of education in this field. The need to pay attention to the effectiveness and efficiency of the education and improving the system of higher education by becoming more aware of the factors involved is necessary. The aim of this study is to evaluate the educational program for master’s degree in Sports Physiotherapy. This is a hybrid study in which qualitative and quantitative methods for data collection were used. The research team consisted of faculty members and sports physiotherapy students. In the first part of the study, due to a lack of standard questionnaires, the method of an expert panel was used to build the tools. In the second part, the questionnaire was distributed among 22 professors and students, and the data was collected. The findings showed that according to the viewpoints of the faculty members and students, the courses in the program are necessary and facilitates the students to become qualified in meeting their future professional requirements. The findings of other research indicate the desirability of the content, implementation, and educational facilities of the program from the viewpoint of the professors, and unfavourable from the viewpoint of the students. Moreover, from the perspective of the professors and students, the teaching methods is appropriate to the type of course and there is no need to add a new course to the program. The findings of student evaluation methods showed that these methods were considered to be favourable from the viewpoint of the professors, and unfavourable from the viewpoint of the students. As a result, the program of Sports Physiotherapy was evaluated, in terms of its favourability, with the existing courses. Nevertheless, the addition of practical and clinical units helps to improve the quality of the curriculum.
Medicine
Abdolreza Mehdinavaz Aghdam; Fariborz Rousta
Abstract
Introduction: Another rare surgical cause of voice change after thyroidectomy is cervical muscle injury Causes of failure may include pulmonary edema, edema, or airway obstruction. The aim of this study was to determine the frequency of unplanned parathyroidectomy, unplanned parathyroidectomy, postoperative ...
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Introduction: Another rare surgical cause of voice change after thyroidectomy is cervical muscle injury Causes of failure may include pulmonary edema, edema, or airway obstruction. The aim of this study was to determine the frequency of unplanned parathyroidectomy, unplanned parathyroidectomy, postoperative hypocalcemia and the risk of unplanned parathyroidectomy in patients undergoing thyroid surgery in our clinic. Material and Methods: Comparison of postoperative Ca value with age, gender, preoperative Ca value, dominant nodule diameter on ultrasonography (USG), type of surgery (total/lobectomy), and histopathological findings of thyroidectomy material (malignant/benign, with or without incident parathyroidectomy) is closed. Blood calcium levels below 8 mg/dL, measured after the first 24 hours after surgery, are indicative of postoperative hypocalcemia. Results: There was no relationship between nodule diameter and hypocalcemia. When patients were divided into malignant and benign groups, there was no significant difference between these groups in terms of performance after hypocalcemia. When patients were divided into groups with and without incident parathyroidectomy, there was no significant difference in postoperative hypocalcemia between these groups. Conclusion: In our study, female gender, age <28.5 years, low preoperative Ca value and total thyroidectomy were considered to be associated with hypocalcemia. Although there is no association between parathyroidectomy and postoperative hypocalcemia, this problem can be avoided by careful removal and imaging of the thyroid gland, especially in patients including patients with malignant thyroidectomy and total thyroidectomy.
Medicine
Khosrow Hashemzadeh; Marjan Dehdilan
Abstract
Introduction: Cardiovascular care has become an important part of the continuity of care for cardiac patients. Its use is recommended in today's cardiac diagnostic procedures. Despite well-documented morbidity and mortality outcomes, cardiac services are underutilized. The basic principles of cardiac ...
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Introduction: Cardiovascular care has become an important part of the continuity of care for cardiac patients. Its use is recommended in today's cardiac diagnostic procedures. Despite well-documented morbidity and mortality outcomes, cardiac services are underutilized. The basic principles of cardiac therapy are explained in detail. Improvements in cardiac referrals, recording, and completion are possible using new performance measures. Material and Methods: Most guidelines recommend moderate-intensity exercise (60 to 75% of your maximum heart rate based on your target heart rate or ideal heart rate) for at least 30 minutes a day, at least 5 days a week, and preferably every day. Borg aerobic exercise, such as brisk walking, should be supplemented with daily water sports (such as walking after work, gardening, and housework). Results: Regular physical activity has been shown to have many cardiovascular benefits, including weight loss, lowering blood pressure, controlling diabetes and improving blood lipids. An analysis of 11 rehabilitation studies involving 115 patients found that regular physical activity was associated with a 28% reduction in all-cause mortality (6.2% vs. 9.0%) with a difference of 0.72, 95% CI 0.54–0.95)), there was a 24% reduction in myocardial infarction recurrence, but this was not significant (hazard ratio 0.76, 95% CI 0.57–1). Conclusion: Cardiovascular therapy has been shown to be safe and effective in improving quality of life and reducing morbidity and mortality in cardiac patients. Despite proven benefits, it is still not used in the treatment of heart disease. More patients will benefit from effective technology by improving referral and participation in cardiovascular care programs and personalized services involving the patient's condition.
Medicine
Mahboubeh Pazoki; Pegah Joghataie; Omolbanin Asadi Ghadikolaei; Sina Shojaei; Marjan Hajahmadi; Mohsen Taghavi Shavazi
Abstract
Objective: Cardiac thromboses are not uncommon, but right atrial thromboses are extremely rare. Methods: This study is a systematic study. 1541 articles were analyzed based on keywords and according to pubmed, scopus, web of science and embase databases. After removing duplicates, 964 articles remained. ...
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Objective: Cardiac thromboses are not uncommon, but right atrial thromboses are extremely rare. Methods: This study is a systematic study. 1541 articles were analyzed based on keywords and according to pubmed, scopus, web of science and embase databases. After removing duplicates, 964 articles remained. Finally, after reviewing the articles according to the title and abstract, 906 articles were removed and only 58 articles were included in the study and analyzed. Results: After the investigations, the results showed that in the studies, surgical treatments and anticoagulation and thrombolysis treatments were used to treat patients. Discussion: Finally, according to the data obtained from this study, it has been shown that the use of anticoagulation and thrombolysis treatment methods compared to surgical treatment for the treatment of patients can be associated with fewer complications for them. The use of surgery as the first treatment option can be combined with the use of antibiotics to prevent infection in patients. Therefore, the type of treatment can be chosen based on the clinical process and clinical symptoms of the patients.
Medicine
Sadigheh Musaei
Abstract
Pregnancy is a period of deep hormonal and metabolic changes that the body endures for a relatively short period of time, during which many changes occur in the skin, nails and hair. Rashes and skin changes are extremely common during pregnancy. Due to the specific mental and emotional conditions of ...
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Pregnancy is a period of deep hormonal and metabolic changes that the body endures for a relatively short period of time, during which many changes occur in the skin, nails and hair. Rashes and skin changes are extremely common during pregnancy. Due to the specific mental and emotional conditions of pregnant women, these changes can cause concerns that may be related to appearance, the possibility of recurrence in subsequent pregnancies, potential effects on the fetus, or a combination of them. The skin changes observed during pregnancy are not all of the same importance. Some of them are common skin changes that can be seen in almost all pregnant women. Of course, there are a number of skin diseases that are specifically associated with pregnancy. Also, pregnancy can aggravate or alleviate many skin diseases that are not specific to this period.
Medicine
Ali Sharifi; Abbasali Dehghani
Abstract
Introduction: Gastrectomy plays a central role in the management of gastric cancer, and its short-term outcomes have significant implications for patient care and treatment decisions. Surgical morbidity, postoperative recovery, length of hospital stays, and the impact of minimally invasive techniques ...
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Introduction: Gastrectomy plays a central role in the management of gastric cancer, and its short-term outcomes have significant implications for patient care and treatment decisions. Surgical morbidity, postoperative recovery, length of hospital stays, and the impact of minimally invasive techniques and lymph node dissection are all critical factors to consider.Material and Methods: This study aimed to investigate the short-term outcomes of gastrectomy for patients with gastric cancer. A retrospective cohort study design was employed to analyze data from a single-center database. The study period spanned from 2019 to 2020.Results: Subgroup analyses were conducted to identify factors associated with surgical morbidity. Multivariable logistic regression analysis revealed that advanced tumor stage (2.25 95% CI, 2.11-3.19), open surgical approach (5.51 95% CI: 4.88-7.19), and a higher Clavien-Dindo classification (5.595% CI: 5-12.3) were independent predictors of surgical morbidity. These findings highlight the importance of early detection and management of complications, as well as the potential benefits of minimally invasive techniques in reducing surgical morbidity (fig 3).Conclusion: In conclusion, the study on short-term outcomes of gastrectomy in patients with gastric cancer provides valuable insights into the potential risks and benefits associated with the surgical procedure. It emphasizes the need for careful patient selection, meticulous surgical techniques, and comprehensive postoperative care to optimize outcomes and enhance patient satisfaction. Further research is warranted to explore long-term oncological outcomes and survival to provide a more comprehensive understanding of the overall impact of gastrectomy in the treatment of gastric cancer.
Chemical Engineering
Frank Rebout
Abstract
There are many ways to reduce the coefficient of friction as a result of pressure drop in internal flows and thrust force in external flows. For example, film suction, injection of gas bubbles in the boundary layer, use of magnetic fluid, etc., which are mostly intermediate fluids. Polymers are among ...
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There are many ways to reduce the coefficient of friction as a result of pressure drop in internal flows and thrust force in external flows. For example, film suction, injection of gas bubbles in the boundary layer, use of magnetic fluid, etc., which are mostly intermediate fluids. Polymers are among the materials that can be used as intermediate fluids. Due to their ring structure and chain structure, polymer particles stretch and elongate when they are inside the stream. This stretching first absorbs energy from the fluid and does not allow this energy to be used to produce vortices. Second, stretching the polymer chain like a wall prevents the growth of vortices. The higher the molecular mass of the polymer, the greater the drop loss and the lower the critical concentration due to the heavier the polymer. As the concentration of polymer in water increases, the drop curve in terms of discharge towards the horizontal axis of Shifa and gets closer to it. In other words, the friction drops decreases. Percentage drop for 100gr per cubic meter of water is 4.54%, 200gr per cubic meter is 12.78%, 300gr per cubic meter is 27%, 400gr per cubic meter is 30.7% and 500gr per cubic meter is 39.4%, the maximum amount of reduction is.
Medicine
Vahid Fattahi; Mohammad Irajian
Abstract
The term arthroplasty refers to joint replacement through open surgery, which is used for cases where the joint has lost its function and the patient no longer has the ability to perform daily activities in the joint. In patients with knee osteoarthritis (arthrosis), the concentration of hyaluronic acid ...
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The term arthroplasty refers to joint replacement through open surgery, which is used for cases where the joint has lost its function and the patient no longer has the ability to perform daily activities in the joint. In patients with knee osteoarthritis (arthrosis), the concentration of hyaluronic acid in the synovial fluid is lower than the normal value. As a result, by injecting hyaluronic acid (viscosupplementation), the patient's knee pain is reduced and the patient can carry out his daily activities as before. The pain reduction effect of hyaluronic acid injection usually lasts for 3 to 9 months, and after this period, the injection can be repeated up to 2 times. At this time, the surgeon can replace the joint by considering the patient's physical conditions as well as his age and activities. Joint replacement or arthroplasty is one of the methods considered to treat patients with advanced arthritis. Complications after arthroplasty are things that can be reduced by specialized physiotherapy. Many patients will gain appropriate abilities after surgery and recovery in physiotherapy clinics in such a way that they will return to normal conditions in daily activities, but some of them may need to extend the sessions or at least reduce the pain after surgery in different ways. The useful life of the joints depends on their conditions and how their use is different in different people and mainly the joints that bear more weight or those joints that are used more are more exposed to joint damage and destruction such as arthritis. Also, diseases such as rheumatic diseases, metabolic disorders can lead to the destruction of joints and the need for joint replacement. Most of the involved joints include hip and knee, and the incidence of involvement of these two joints is much higher than other joints.
Covid
Dinami.H Birman
Abstract
This study investigated the effects of Covid-19 on body postures. Specialists around the world are now conducting clinical trials and research to understand why some patients recovering from Covid-19 have long-term complications. The coronavirus primarily affects the respiratory system and can cause ...
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This study investigated the effects of Covid-19 on body postures. Specialists around the world are now conducting clinical trials and research to understand why some patients recovering from Covid-19 have long-term complications. The coronavirus primarily affects the respiratory system and can cause pneumonia and endanger human life. Other research shows that the disease can cause blood clots and inflammation in many parts of the body, and even in mild cases. Covid-19 can also be seen. This indicates the great need to take care of yourself against the disease. The recovery time from Covid-19 disease varies from person to person. Many people feel better in a few days or weeks, and most will recover within 12 weeks, but in some people, the symptoms may last longer. The likelihood of long-term symptoms does not appear to be related to how the disease occurred when you first contracted the coronavirus, and people who have experienced mild Covid-19 may also have long-term symptoms. The corona virus, especially its newer form, the delta corona, does not only attack the lungs; The heart, kidneys, brain, arteries, nerves, and skin are other organs that have been shown to affect the function of a new mutation in the Covid-19 virus.
Medicine
Khosrow Hashemzadeh; Marjan Dehdilan
Abstract
Introduction: Our aim was to record preoperative and postoperative results in patients undergoing coronary artery bypass grafting, to examine the factors affecting reoperation, and to determine whether there is a gender difference in pre- and post-activity activity using the Duke Activity Status Index. ...
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Introduction: Our aim was to record preoperative and postoperative results in patients undergoing coronary artery bypass grafting, to examine the factors affecting reoperation, and to determine whether there is a gender difference in pre- and post-activity activity using the Duke Activity Status Index. Material and Methods: 151 patients who underwent isolated coronary artery bypass grafting. The median time from baseline to return to work after Duke Success for women and men was 8.0 months. In addition to baseline scores at postoperative follow-up, the effects of 47 variables were analyzed with logistic ordinal models. The appropriate model for subsequent scores was determined by reverse selection, keeping the variables if they met the criteria for a P-value less than 0.05.Results: Average scores on the Duke Activity Status Index (women, 21.5; men, 32.2; P < .001) and pretest scores (42.7 for women; 58.2 for men; P < .001) were lower in women than in men. Postoperative scores were lower in elderly patients with obstructive pulmonary disease, myocardial infarction, stroke, diabetes, vascular disease, severe postoperative pain, and return to the operating room. After adjusting for these factors, recovery scores remained lower for women (difference from men, 2.1 [95% confidence interval, 1.7-2.6]; P < .001).Conclusion: A number of preoperative, surgical variables, and postoperative factors are associated with functional recovery after coronary revascularization. Additionally, after adjusting for these variables, female sexuality was later associated with lower performance.
Medicine
Mohammad Reza Moharrami; Mahdi Nazari
Abstract
Introduction: This systematic review aims to compare the efficacy and safety of low-dose intravenous ketamine-midazolam with intravenous morphine for pain control in patients with hand fractures. By synthesizing the available evidence, we seek to provide clinicians with valuable insights into the potential ...
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Introduction: This systematic review aims to compare the efficacy and safety of low-dose intravenous ketamine-midazolam with intravenous morphine for pain control in patients with hand fractures. By synthesizing the available evidence, we seek to provide clinicians with valuable insights into the potential benefits and limitations of these analgesic strategies, aiding in informed decision-making for optimal pain management in this patient population. Material and Methods: This systematic review follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to ensure transparency and methodological rigor in the review process. Results: The primary outcome of pain control was assessed using various pain scales, including the Visual Analog Scale (VAS) and Numeric Rating Scale (NRS). The majority of studies reported comparable pain control between low-dose ketamine-midazolam and intravenous morphine. Both analgesic regimens resulted in significant pain reduction. A subset of studies demonstrated that low-dose ketamine-midazolam provided superior pain control compared to intravenous morphine, particularly in the immediate post-intervention period. However, the overall evidence regarding the superiority of one regimen over the other was inconclusive due to variations in study designs, sample sizes, and outcome measures. Conclusion: Low-dose intravenous ketamine-midazolam and intravenous morphine are both effective analgesic regimens for pain control in patients with hand fractures. While the evidence regarding the superiority of one regimen over the other remains inconclusive, low-dose ketamine-midazolam appears to offer comparable pain control with reduced opioid consumption anda favorable safety profile.
Covid
Hamidreza Alizadeh Otaghvar; Siavash Mahdigholizad; Mohammadhossein Khanmohammadi kalkhoran; Tara Motamedi; Ali Akbar Jafarian; Reza Salehi; Mohammad Javad Motamedi
Abstract
amnion implantation in the operating room on children's acute second degree burn wounds in patients referred to Shahid Motahari Hospital in Tehran in 2022-2023. Study method: In this cross-sectional study, which retrospectively examines the results of amniocentesis in children referred to Shahid Motahari ...
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amnion implantation in the operating room on children's acute second degree burn wounds in patients referred to Shahid Motahari Hospital in Tehran in 2022-2023. Study method: In this cross-sectional study, which retrospectively examines the results of amniocentesis in children referred to Shahid Motahari Hospital in Tehran in 2022-2023, patient records are examined to collect information. Findings: The information of 203 children under 16 years of age who underwent amniocentesis in Shahid Motahari hospital with 2nd degree burns between 2022 and the end of December 1401 were analyzed. Their average age was 4.86±3.937. 59.6% of the subjects were boys and 40.4% were girls. The average duration of hospitalization was 6.62±4.483 days. 96.1% of the burns happened at home, 1.9% in the park and 1.5% in the street. The frequency of burn percentage of patients is 37.4% in the range of 10-19%, 29.1% in the range of 20-29%, 20.7% in the range of 0-9%, 11.3% in the range of 30-39%, 1% in the range of 40-49%. and 0.5% was in the range of 50-59%. 64.5% of children with boiling water, 12.8% with food, 7.9% with gasoline, 4.4% with flames, 3% with alcohol, 2.5% with gas canisters, 2% with city gas, 2% with flammable materials, 0.5% with coal. And 0.5% were burned by a hot object. 75.4% of patients had trunk burns, 68.5% had arm and forearm burns, 50.7% had head and neck burns, 48.8% had thigh and leg burns, 35% had hand burns, 12.8% had leg burns, and 2% had whole body burns. 20.7% of patients needed grafting during hospitalization. Out of 131 people who suffered scald burns, 27 people needed grafting. Out of 26 people who suffered food burns, 3 people needed grafting. Out of 16 people who were burned with gasoline, 6 people needed grafting.
Medicine
Ebrahim Ghaibi; Mohammad Reza Soltani Manesh; Hadis Jafari Dezfouli; Farzaneh Zarif; Zahra Jafari; Zahra Gilani
Abstract
AbstractThe purpose of the present study was to compare marital satisfaction, emotional divorce and religious commitment among nurses and staff of public hospitals in Ahvaz. The sample consisted of nine nurses and staff of public hospitals in the community who were selected by the available sampling ...
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AbstractThe purpose of the present study was to compare marital satisfaction, emotional divorce and religious commitment among nurses and staff of public hospitals in Ahvaz. The sample consisted of nine nurses and staff of public hospitals in the community who were selected by the available sampling method. The tools used in this study were Alason's Marital Satisfaction Questionnaire, Emotional Divorce of Razghi et al. and Barati's religious commitment. This research is comparative. The findings showed that employees have more marital satisfaction than nurses, given the average of the two groups. Due to the average of the two groups of nurses and public hospitals employees, they are in the same way in terms of emotional divorce. Given the average of the two groups of nurses, they have a higher religious commitment than employees.
Medicine
Marjan Dehdilan; Khosrow Hashemzadeh
Abstract
Introduction: In adults, readmission within 30 days of heart surgery is a major factor in hospital costs for heart surgery, but current data on risk factors for readmission are scarce. Therefore, we sought to identify performance-adjusted risk factors for coronary artery bypass graft (CABG) re-admissions.Material ...
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Introduction: In adults, readmission within 30 days of heart surgery is a major factor in hospital costs for heart surgery, but current data on risk factors for readmission are scarce. Therefore, we sought to identify performance-adjusted risk factors for coronary artery bypass graft (CABG) re-admissions.Material and Methods: The records of patients who underwent CABG at our institution between 2012-14 were analyzed for contrast with prospectively recorded case studies, including New York Cardiac Surgery Reporting System (CSRS) events, prescriptions, and testing costs.Results: Read rate 13% ; The CSRS estimated value is 8.7% (observed/predicted ratio = 1.5). The median time from CABG discharge to readmission was 6 days (interquartile range [IQ] 3 to 13 days). The median length of hospital stay was 4 days (IQ 2 to 7 days). The most common causes of readmission were heart disease (n = 40 [25% of readmissions]) and pneumonia (n = 36 [23%]), including pleural effusions. In addition to CSRS status, serum creatinine excretion alone was not associated with increased readings (p=0.5) OR] 5.7, %95 GA 1.7 ila 18.7).Conclusion: Readmission for coronary artery bypass surgery remains an ongoing medical challenge. Given that readmissions usually occur within the first week after discharge and are usually short-term, attention is paid to follow-up care and risk of readmission (compare, for example, abnormal serum creatinine or abnormal reactivity) and/or multiple causes of readmission. may reduce readmission after CABG (eg, pleural effusion).
Health
Tara Motamedi; Hamidreza Alizadeh Otaghvar; Mohammad Javad Motamedi
Abstract
By studying the morbidity of surgery conducted by surgery physicians’ surgery ward at Rasool Akram hospital, we wanted to reduce morbidity cause and take a little step in improving the patient's health. Method: Medical records of patients operated in rasool akram hospital was investigated and information ...
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By studying the morbidity of surgery conducted by surgery physicians’ surgery ward at Rasool Akram hospital, we wanted to reduce morbidity cause and take a little step in improving the patient's health. Method: Medical records of patients operated in rasool akram hospital was investigated and information such as surgery, intraoperative and postoperative complication associated v variables were recorded in the check list. Result: Re-laparotomy possibility in Men was 3.5 times more than women Metastatic pathology likely increases the necessity of re-laparotomy to 1.2. The possibility of re-laparotomy in a patient who has a history of positive chemotherapy increase up to 2.9. The possibility of re-laparotomy in case of prolapse increases to 2.4 (1.8-3). Conclusion: The possibility of re-laparotomy increases with factors such as male gender, metastatic pathology, positive history of chemotherapy, the incidence of prolapse and incidence of adhesion. Although having Gl anastomosis increases the risks of post op complications and being problem with the colostomy leading to its closure are such important issues in predicting relaparotomy chances.
Medicine
Saeid Charsouei; Mohsen Mohammadrahimi
Abstract
Introduction: Neuropathic post-surgical pain (NPSP) is a debilitating condition that can occur following surgical procedures, including radical prostatectomy. Preoperative pain has emerged as a potential risk factor for the development of NPSP, suggesting that early identification and management of preoperative ...
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Introduction: Neuropathic post-surgical pain (NPSP) is a debilitating condition that can occur following surgical procedures, including radical prostatectomy. Preoperative pain has emerged as a potential risk factor for the development of NPSP, suggesting that early identification and management of preoperative pain may play a crucial role in preventing NPSP. This study aimed to investigate the association between preoperative pain and NPSP following radical prostatectomy, providing valuable insights into the pathophysiology and prevention of NPSP. Material and Methods: Following surgery, participants were followed up for a period of six months to assess the development of NPSP. Postoperative pain assessments were conducted at regular intervals, including one week, one month, three months, and six months after surgery. Pain intensity was evaluated using the NRS, and pain characteristics were assessed using validated neuropathic pain assessment tools, such as the Leeds Assessment of Neuropathic Symptoms and Signs (LANSS) and the Douleur Neuropathique 4 Questions (DN4) questionnaire. Results: Functional impairment and quality of life were also significantly affected in patients with NPSP. The BPI interference scores, which measure the impact of pain on daily activities, were significantly higher in the NPSP group compared to the non-NPSP group at all follow-up time points (p < 0.001). Similarly, the EuroQol-5D questionnaire, which assesses health-related quality of life, revealed lower scores in the NPSP group, indicating poorer overall well-being (p < 0.001). Conclusion: this study highlights the significance of preoperative pain as a risk factor for the development of NPSP following radical prostatectomy. Patients with preoperative pain are at a significantly higher risk of experiencing NPSP, which is associated with higher pain intensity, functional impairment, and decreased quality of life. Efforts should be made to implement preoperative pain assessment protocols and optimize pain management strategies to minimize the risk of NPSP and improve postoperative outcomes.
Chemical Engineering
Martin Zbuzant
Abstract
In order to optimize the amount of dopant, 3 catalysts with different weight percentages of dopant entered the test medium and it was found that the increase of silver, cerium, nickel. It is one of the factors that accelerates the process of destruction. But this increase works to some extent, and more ...
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In order to optimize the amount of dopant, 3 catalysts with different weight percentages of dopant entered the test medium and it was found that the increase of silver, cerium, nickel. It is one of the factors that accelerates the process of destruction. But this increase works to some extent, and more than this amount will have the opposite effect. In order to optimize the amount of dopant, the oxidative activity of the di benzothiophene compound in a simulated mixture of petroleum derivatives on a set of cerium catalysts as well as nickel deposited on a titanium dioxide substrate was doped with various amounts of Ni dopantin. In general, the oxidant enters the test medium to facilitate degradation. All experiments with the presence of oxidant had a higher efficiency. Therefore, in order to optimize the amount of oxidant, different amounts of them were introduced into the test medium and it was found that increasing the oxidant is one of the factors that accelerates the degradation process, but this increase is somewhat effective and more destructive.
