Showing 19 results for Razavi
A Rabbani, Sr Mir Sharifi, Sh Razavi Emami ,
Volume 53, Issue 2 (5-1995)
Abstract
100 patients (93 females and 7 males) in ages ranging between 23 and 65 years were subjected to laparoscopic cholecystectomy for biliary colic (92 pts), acute cholecystitis (7 pts) or asymptomatic gallstones (1 pt). None had a history of icterus and in every case choledocholithiasis was excluded by means of serum alkaline phosphatase assessment and sonography (In addition to ERCP in 3 pts). 3 operations were converted to open cholecystectomy (Because of uncertainty about anatomy in 1 pt, extensive adhesions in 1 pt, and persistent bleeding in 1 pt). Mean operation time was 80 min. 90 patients were discharged on the 2nd post-operative day. Apart from 2 pts who were readmitted (For omental evisceration in 1 pt and sub hepatic hematoma in 1), complications were limited to minor complaints. Laparoscopic cholecystectomy is a safe procedure in the hands of a skilled surgeon who is aware of anatomic variations and is always prepared to liberally convert the operation to an open cholecystectomy
Sm Razavi , H Zare , H Esfandi ,
Volume 56, Issue 4 (1 1998)
Abstract
In this study we have selected in a simple random sampling, 391 diabetic women, among diabetic patients, who were attending to center of diabetes control in Yazd city in 1993. The patients were investigated in view of: Average of (age of marriage, number of marriage, age of the first pregnancy, number of pregnancies, the last fasting blood sugar), frequency and average of (early labours, alive borns, reminder alive borns, anomalous borns, history of abortions), and frequency of (diabetes in previous and next offspring, 15-49 years old women, the most common method of pregnancy prevention), and consideration of pregnant women situation. There were among under investigation patients, individuals who had more than 5 marriages, 25 pregnancies, 15 alive children, ten >4 Kgr born newborns, history of 14 times of abortions, and even 11 anormalous infants. The disease in every generation was common in females, and average of the last fasting blood suger in patients with >6 pregnancies was significantly more than patients with <6 pregnancies (P=0.0004). Finally, our principal purposes in this study were: Correct screening of pregnant women in view of diabetes mellitus, urgent follow up of the patients specially present patients, and more emphasis on specifc education about diabetes mellitus.
Sm Razavi , H Zare , H Esfandy ,
Volume 57, Issue 1 (7 1999)
Abstract
Some factors such as: aging, obesity, hypoactivity, stress, urbanization, hyperlipidemia, hypertension, multiple pregnancies, smoking and so forth, are important factors that are always argued whether in disease production or in increasing morbidity and mortality in diabetic patients. In a descriptive, cross-sectional and correlational study, we looked for some important risk factors in 780 diabetic patients in Yazd city. The main objective in this study was to identifying the at risk cases. In this study, 54% of understudied patients were obese, 52.3% hypoactive, 80.7% urbanized, 21.5% smokers and approximately 11% were continiously or occasional alcohol users. 85% of all patients had no habit to sport, and the mean of their last fast blood sugar was significantly upper than those who had continiously physical exercises (P=0.01). Majority of understudied women (65.3%) had experienced 6 or more pregnancies during their life, and the last mean blood sugar in these patients was significantly upper than those with <6 pregnancies (P=0.0004). The age of majority of patients in either males or females was 50-70 years, and duration of disease in majority of them was <10 years. Increasing of the last mean blood sugar was significantly compatible with increasing of disease duration (P=0.00003). Regardless the type of diabetes, the disease in every generation was more frequent in female gender and totally, the mean of last fast blood sugar in the patients was 216 mg/dl which is not a controlled sugar. We have suggested the mean of last fast blood sugar in all of the referal cases as a performance indicator during evaluation of center of diabetic patients control
M Razavi , A Rabani , M Tavakol ,
Volume 57, Issue 3 (8 1999)
Abstract
A descriptive cross-sectional survey design was performed among medical and paramedical students. This study was conducted to assess evaluation of teaching quality of teachers from students' point of view, using a questionnaire administered by interviewers to 21171 students randomly selected among target population. 650 subjects were recorded during the year 1996-1997. The questionnaire was a 14 item, Likert scale designed to measure teaching quality of teachers. The possible score range on the questionnaire was 14 to 70, so the mean score was 42. The scores equal or more than 42 were suggested as "Good teaching quality" and the scores less than 42 considered as "Poor teaching quality". Findings indicated that the mean score and standard deviation on total faculties were, 54.6 and 12.2 respectively. 79.3% have positive point of view of quality teaching. Analysis of variance (ANOVA) was used to determine the influence of faculties on subjects' scores on the questionnaire. A significant main effect of faculties on mean score (F=44.29: P<0.0001) was noted
Abbasi Moghaddam M A, Razavi S M, Nooraei S M,
Volume 62, Issue 1 (12 2004)
Abstract
Background: The idea of integration of medical education into health care system with the goal of comprehensive self sufficiency and complete response to public health needs were initiated in 1985. There were many prose and cones in this procedure which raised many controversies. The dilemma about strengths and weaknesses increased in 2002 during which Iran parliament tried to change the situation. In this study we tried to conclude and exit the dilemma.
Materials and Methods: We studied the attitude of key academic person regarding the integration. In a cross-sectional study using a pretested questionnaire, we assessed the attitude of 556 academic staffs and managers from eight randomly selected medical universities.
Results: Most of respondents agreed the positive out come of integration like establishment of disease surveillance and improving in health indicators, but they believed that the quality of medical education has decreased. Most of respondents suppose that dissociation of medical education may cause a lot of problems.
Conclusion: There are a lot of controversies regarding the strengths and weaknesses of integration. External factors were causes of decreasing the quality of education so it is important to decide about the future by considering external factors.
Dargahi H, M Razavi,
Volume 63, Issue 2 (12 2005)
Abstract
Background: This research have presented focuses upon the cultural side of managerial coordination and control as manifested in Telemedicine Technology. Specifically, the research seeks to analyze and determines the attitude of clinical physicians about the role of specific dimensions of organizational culture and organizational structure may have upon effective managerial coordination and control in Telemedicine Technology in TUMS hospitals.
Materials and methods: We assessed the attitude of 82 clinical physicians in five randomly selected TUMS teaching hospitals in a mixed method of pooling Quantitative and Qualitative data using unstructured interview technique.
Results: For successful telemedicine utilization, most of clinical physicians believed that we need organic organizations that have involved leadership, open and free communication of mistakes and success, desire to experiment with new ideas, support for continuing education, support for new things, clear rules to follow and acknowledge performance goals.
Conclusion: The data indicate that organizational is most important to utilize successfur telemedicine technology.
Mirsharifi S R, Emami Razavi S H, Jafari S, Bateni H,
Volume 65, Issue 11 (1 2008)
Abstract
Background: surgical site infection is one of the most common post operative complications alongside with sepsis, cardiovascular, pulmonary and thromboembolic complications. The development of surgical site infection is related to three factors: the degree of microbial contamination of the wound during surgery, the duration of the procedure, and host factors such as diabetes, malnutrition, obesity, immune suppression, and a number of other underlying disease states. The purpose of this study was to evaluate the effects of topical cephazolin in controlling infection of the site of surgery after non-laparoscopic cholecystecomy.
Methods: One hundred and two of patients referred to the outpatient clinic of Imam Khomeini Hospital from fall 2005 to fall 2006 non- laparoscopic cholecystectomy enrolled in a randomized clinical trial. All patients underwent the same procedure of anesthesia and surgery and they were randomly assigned into two groups of cases with irrigation of the site of surgery with 1g of topical Cephazolin prior to the termination of the operation- and controls. Cephazolin is a first generation cephalosporin which binds penicillin binding protein and is a potent cell wall synthesis inhibitor. The patients were followed up for six weeks for symptoms and signs of infection including discharge of the wound and presence of pain, warmness, swelling and erythema of the wound.
Results: There were no significant differences between two study groups regarding mean age, duration of operation, and sex. There was no significant difference in the incidence of infection of the site of surgery (11.8% in both groups with p=0.99) between two groups.
Conclusion: Analyzing the collected data confirms that prophylactic use of topical cephazolin was unable to decrease the risk of infection of the site of surgery in patients undergoing non- laparascopic cheolecystectomy.
Karimiyazdi A, Sazgar Aa, Aghayan Hr, Sadrhoseini Sm, Arjmand B, Tavasoli A, Imamirazavi Sh,
Volume 66, Issue 9 (5 2008)
Abstract
Background: Several therapeutic modalities have been cited for patients with microtia. Recently there are several reports about using cadaveric homograft cartilage for some other purposes. The aim of this study was to assess the results of auricular reconstruct-tion in 10 patients (12 ears) with congenital atresia using homograft rib cartilage from the Iranian Tissue Bank.
Methods: We enrolled 10 patients with microtia who were referred to the Imam Khomeini Hospital from September 2006 to July 2007 for auricular reconstruction. The reconstruction was performed using a pre-shaped homograft(s) of each patient's ear(s) made by the Iranian Tissue Bank from the 6th, 7th and 8th costal cartilage according to the method of Marquette. In six patients, the second stage of reconstructive surgery was performed three months after the first stage. The patients were followed regarding the ear appearance, the dimensions of cartilage and tissue reaction.
Results: The mean age of the patients was 11.08 (SD=5.57) years and the average duration of follow-up was 6.29 (SD=3.12) months. Eight cases had unilateral involvement (six right and two left), in addition to two cases of bilateral involvement. During the follow-up period, the appearance of the helix was satisfactory in 11 ears and the lobule in 10 ears. The height and width of the reconstructed auricles was an average of 1-2 millimeters different from the opposite ear. Erythema was the most common early complication. Late complications, including cartilage exposure and infection, were observed in one patient.
Conclusion: Auricular reconstruction using homograft costal cartilage in patients with microtia has promising results. The short term resorption can be ignored and significant early or late complications are infrequent.
Amari A, Razavi Al, Jamali A, Aminisardrod Aa, Motamedi M, Shojaee S, Ansaripour B, Pourgholaminejad A, Hadjati J,
Volume 67, Issue 9 (6 2009)
Abstract
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Background: Dendritic Cell (DC) is an important
antigen-presenting cell that present tumor antigen to CD8+ and CD4+ T- Lymphocytes and
induce specific anti-tumor immunity. In
order to induce effective anti-tumor response, an option is increasing the
efficiency of antigen presentation of dendritic cells and T cell activation capacity. The aim of the present study was to investigate the effect of dendritic cell maturation with protein components of toxoplasma gondii on cytotoxic T lymphocyte
activity and their infiltration in to the tumor.
Methods: For DC generation, bone marrow cells were cultured in the
presence of GM-CSF and IL-4 for five days. After that, LPS, protein
components and whole extract of toxoplasma gondii were added to the culture
media and incubated for another two days for DC maturation. To generate tumor,
mices were injected subcutaneously with WEHI-164 cell line. For immunotherapy 106 DCs
matured with different compounds were injected around the tumor site.
Infiltration of CD8+ T cells were determined by flow cytometry and cytotoxic
activity was measured by LDH detection kit.
Results: Immunotherapy with DCs treated with protein components of toxoplasma gondii
led to a significant increase in the activity of cytotoxic T cells and
infiltration of CD8+ T cells in to the tumor. Immunotherapy using protein
components of toxoplasma gondii significantly improved the survival of the mice
compared with other groups (p<0.0001).
Conclusion: Protein components of toxoplasma are able to increase DC capability in
induction of CTL-mediated
anti-tumor response and
increase infiltration of these
cells in to the tumor.
Hamid Ghaderi, Kourosh Shamimi, Fereydoon Moazzami, Seyed Hasan Emami Razavi, Ali Aminian, Seyed Mehdi Jalali, Reza Afghani, Morteza Noaparast, Seyyed Habibollah Dashti, Saeed Safari, Alireza Ahmadvand, Seyede Adeleh Mirjafari Daryasari, Fatemeh Sadat Naeemie,
Volume 68, Issue 1 (4 2010)
Abstract
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Background: Appendicitis is more common during the second
and third decade of life and appendectomy scar is important in terms of
cosmetic issues. The scar is an important factor in the patient's satisfaction.
Conventional teaching has an emphasis on the closure of skin incision with
"separate" sutures. The aim of this study was to reconsider this dogma.
Methods: Among 321 patients with acute
appendicitis who came to the emergency unit of Imam Khomeini Hospital in
Tehran, Iran since april 2007
till april 2008, 278 (86.6%) patients had
uncomplicated appendicitis and were enrolled in our clinical trial. The
patients were randomly assigned to two groups of interrupted suture closure (n=139) and subcuticular
suture closure (n=139). Anesthesia method and
surgical technique were similar between the two groups. All patients were
followed up post-operatively (four weeks) for the presence of infectious
drainage, pain, erythema, swelling and warmness at the surgical site.
Results: The patients' sex and
their mean age were not statistically different between the groups. There was
no significant difference in the frequency of surgical site complications between
the two groups (five cases in the "interrupted" group and eight cases in the
"subcuticular" group p=0.415).
Conclusion: This study showed that
appendectomy incision closure with subcuticular sutures did not increase the
risk of wound complications. From the point of better cosmetic outcome of
subcuticular sutures, this method may be the method of choice for the closure
of appendectomy incisions in uncomplicated appendicitis.
Hashemi Sm, Madadi F, Razavi S, Nikooseresht M, Hassanzadeh Kiyabi F, Nasiripour S,
Volume 70, Issue 2 (4 2012)
Abstract
Background: Conservative treatment needs to be tried prior to surgical treatment of knee osteoarthritis. This study was designed to evaluate the short-term effects of dextrose prolotherapy on pain relief and functional improvement in knee osteoarthritis in comparison with intra-articular hyaluronic acid injections.
Methods: In this double blind clinical trial, 100 patients, aged 40-70 years, with complaints of knee pain lasting >3 months were recruited in Akhtar hospital during the years 2010 to 2011. The patients met the criteria proposed by the American College of Rheumatology (ACR) for knee osteoarthritis. 50 patients in hyaluronic acid group received five 2 ml injections of hyaluronic acid (Synocrom Forte® 1%) weekly and 50 patients in dextrose prolotherapy group received three 2 ml bimonthly injections of 25% dextrose. The patients were evaluated before and after treatment in terms of pain and functionality using the Knee injury and Osteoarthritis Outcome Score (KOOS) self-questionnaire. The patients were followed up for 12 weeks and were examined 12 weeks after the injections by an observer unaware of group assignments. The data were recorded for statistical analysis.
Results: The mean age of the patients was 60.68.2 years. No significant differences were found between the two groups with respect to pre- and post-treatment KOOS scores. The scores showed significant improvements in all items following treatment in both groups (P<0.001).
Conclusion: It seems that intra-articular injections of 25% dextrose prolotherapy could be as effective as hyaluronic acid injections for the treatment of knee pain due to OA.
Amirnader Emami Razavi , Gholam Basati , Soheila Abdi ,
Volume 72, Issue 1 (April 2014)
Abstract
Background: The intestinal absorption of fatty acids may take place through simple diffusion as well as through protein carrier mediated transport, although the relative importance of each pathway is dependent on the ambient condition of entrocytes. Cad-mium ion influences the absorption of fatty acids in entrocytes. However, the effect of cadmium ion on the absorption of fatty acids in different pH values has not been evalu-ated yet. Especially, the luminal pH of small intestine has an essential role in the ab-sorption of fatty acids. In the present study we aimed to evaluate reciprocal effects of cadmium ion and pH of intestine lumen on the absorption of fatty acids in rat model.
Methods: In this experimental research, 3 months old Wistar rats (45 rats) were used for experiments. After killing the rats, their intestine was removed and the duodenum and jejunum segments were dissected. Everted Gut Sacs (EGS) were prepared from these duodenum and jejunum segments. The sacs were filled with buffer solution and incubated in a medium containing an appropriate concentration of oleic acid. Then the amounts of oleic acid that had been absorbed into the EGSs in the presence and absence of cadmium ions under different conditions of pH, was measured.
Results: Findings of the study demonstrated that the luminal pH of small intestine was effective on the oleic acid uptake and the inhibitory effect of cadmium ions on the up-take of the acid was influenced by pH condition, so that this inhibitory effect was 32% and 36% at the alkaline pHs 7.5 and 9.2, respectively (P< 0.05). At the acidic pHs, 2.5 and 4.5, the inhibitory effect reduced to 11% and 5%, respectively (P< 0.05).
Conclusion: Cadmium ion decreased fatty acid uptake by small intestine in rats, and the acidic pH of intestine lumen could attenuate the inhibitory effect of cadmium ion.
Rouhangiz Babakhanianzadeh, Nahid Masoudian , Amirnader Emami Razavi, Gholam Basati ,
Volume 73, Issue 7 (October 2015)
Abstract
Background: Low density lipoprotein (LDL) particles have shown to be heterogeneous structures with distinctive electrical charges. Alteration in the fatty acids content of the LDL particles is known to affect their structural features, electrical charges, and ultimately physiologic properties and, in this way, may play a role in the pathology of coronary artery disease (CAD). On the basis of evidences, in the present study, the relationship of fatty acids content of LDL particles and their electrical charge was assessed in patients with CAD in comparison with control subjects. Methods: In the current case- control study, from subjects who referred to the Mostafa Khomeini Hospital in Ilam during a time period from December 2013 to October 2014, 40 CAD patients and 40 control subjects were selected based on the clinical and angiographic parameters. The fatty acids content and electrical charges of LDL particles were measured by using a gas chromatography system, equipped with a flame ionization detector GC-FID, Acme 6000 M (Young Lin Co., Korea) as well as a Zetasizer (Malvern Instruments Ltd., UK), respectively. Results: In the present study, CAD patients and control subjects were matched for age, sex, and body mass index (BMI). The electrical charge amounts of LDL particles in the patients group was significantly lower than those in the control subjects (P= 0.0001). There was an inverse correlation between the electrical charge amounts of the LDL particles and the saturated fatty acids as well as linoleic acid contents of them in CAD patients group. However, we found a direct correlation between the unsaturated fatty acids (monounsaturated fatty acids and some of the polyunsaturated ones) content of the LDL particles and their electrical charge amounts (P= 0.02). Conclusion: Results of the present study demonstrated that the increased saturated fatty acids as well as the linoleic acid contents of the LDL particles are associated with decreased electrical charge amounts of these particles and this situation may engage in pathogenesis of CAD.
Nazanin Talebabadi , Amirnader Emami-Razavi, Raheleh Safaei-Javan, Hadis Mohammadpour , Alireza Abdollahi ,
Volume 75, Issue 1 (April 2017)
Abstract
Background: As far as the role and amount of Transferrin receptor 2 (TFR2), which is the transferrin receptor gene, studies have been conducted, some of which confirming its relationship with gastric adenocarcinoma. The idea behind this study was to examine changes in the TFR2 gene expression in the tumor cells of gastric adenocarcinoma and comparing with gene expression in the normal tissue adjoining the tumor.
Methods: This case-control study was conducted at the Pathology Section of Cancer Institute of Imam Khomeini University Hospital in Tehran from September 2015 to September 2016. In this study, 30 fresh samples from tumor tissues of patients diagnosed with gastric adenocarcinoma, 30 fresh samples of normal tissue adjoining the tumor and 30 samples of frozen plasma from the same patients were taken. The patients' plasma was examined in terms of existence of helicobacter pylori antibody by enzyme linked immunosorbent assays (ELISA) method and TFR2 gene expression in the tumor tissue and the adjoining normal tissue by applying real-time polymerase chain reaction (Real-Time PCR).
Results: Gene expression (by applying real time polymerase chain reaction) in the tumor tissue was meaningfully higher than in the normal tissue (P= 0.125). The TFR2 expression in patients with stomach cancer, who were at the same time infected with helicobacter pylori, indicated that the gene expression had increased in those with this contamination (P= 0.077). Examining the relationship between this gene expression and the stage of disease showed that the TFR2 gene expression increased significantly in the more advanced stages of the disease (P= 0.396).
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Conclusion: The TFR2 gene expression increases in the stomach's tumor tissue. This gene expression is higher in people infected with helicobacter pylori or in those at an advanced stage of the disease. These findings may confirm the direct relationship between gene expression and the occurrence or metastasis of gastric adenocarcinoma.
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Leila Asefkabiri , Abbas Alibakhshi , Seyed-Hassan Emami-Razavi , Mahtab Mohammadifard , Alireza Abdollahi ,
Volume 75, Issue 3 (June 2017)
Abstract
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Background: Hypocalcemia is one of the most prevalent complications following total thyroidectomy. Over recent years, in addition to hormone parathyroid hormone (PTH), vitamin D has been also studied as a factor causing post-total thyroidectomy hypocalcemia. This survey seeks to study the relationship between the serum level of vitamin D before surgery and during post-total thyroidectomy hypocalcemia.
Methods: A group of 57 patients volunteering for total thyroidectomy were studied on Vali-e-Asr Hospital, Tehran, Iran, from March 2013 to March 2015. In all these patients, pre-surgery calcium, vitamin D and parathyroid hormone (PTH) as well as the level of calcium during the post-surgery first two days were measured. Based on objectives of this study, the relationship be-tween pre-surgery vitamin D level and post-surgery hypocalcemia was examined.
Results: The average age of patients participating in the survey was 24.1±13.3. They included 19 women (33.3%) and 38 men, total of 40 patients (70.2%). Their average post-surgery calcium level was 9.2±0.77 milligrams per deciliters (mg/dl) and their average vitamin D content before the surgery was 42±12.1 nanomole per liter (nmol/l). The average calcium level before the surgery and the first post-surgery day were meaningfully different in terms of statistics (P<0.001). In terms of vitamin D, 37 patients (64.9%) had pre-surgery vitamin D deficiency and 20 patients (35.1%) had vitamin D insufficiency. Of 37 patients with pre-surgery vitamin D deficiency, 26 were diagnosed with post-surgery first-day hypocalcemia and of 20 patients with vitamin D insufficiency, 14 suffered post-surgery first-day hypocalcemia. This difference was not statistically meaningful (P>0.001). Of 37 patients with pre-surgery vitamin D deficiency, 31 suffered post-surgery second-day hypocalcemia and of 20 patients with vitamin D insufficiency, 18 suffered second-day hypocalcemia. This difference was not statistically meaningful either (P>0.001).
Conclusion: The current study showed that the serum level of vitamin D before total thyroidectomy does not have any role in the occurrence of post-surgery hypocalcemia which is almost common after this type of surgery.
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Seyedeh Hakimeh Rezazadeh, Reza Shirkoohi, Abdolhamid Angaji, Seyed Yusef Seyedena, Amir Nader Emami Razavi,
Volume 76, Issue 2 (May 2018)
Abstract
Background: Ovarian cancer is a leading metastatic disease. The epithelial ovarian cancer is one of the most common malignant cancers that usually remains asymptomatic up to metastasis stages, and most patient when diagnosed are in the advanced stage of the disease. Studies have shown that in the majority of epithelial cancers mesenchymal factor expression such as Vimentin increases, and the epithelial factor expression such as E-cadherin decreases, as a result, it causes an epithelial-mesenchymal transition (EMT). The aim of this study was to determine the expression level of these genes and association between EMT phenomenon and development of ovarian cancer based on clinical and morphological findings.
Methods: In the present case series study, 70 samples were chosen from the tumor Bank of Cancer Institute taken from patients at Imam Khomeini Hospital, Tehran, Iran. The amount of expression of two genes, E-cadherin and vimentin, was investigated by real-time PCR method from February 2016 to September 2017. The RNA extraction was done manually, and then cDNA synthesis was performed; In each sample the expression level of vimentin and E-cadherin was measured with real-time PCR method. The patient’s clinical information with other data were analyzed with nonparametric statistical methods in SPSS software, version 19 (SPSS Inc., Chicago, IL, USA).
Results: There was a significant relationship between expression of vimentin gene and the stage (P=0.026) of the disease and metastasis (P=0.009), There was no significant relationship between vimentin gene expression and tumor grade (P=0.207), age (P=0.11), tumor size (P=0.71) and family history (P=0.6). There was a significant correlation between E-cadherin gene expression and metastasis (P=0.027), no significant correlation was found between E-cadherin gene expression with tumor grade (P=0.690), stage (P=0.753), age (P=0.09), tumor size (P=0.537) and family history (P=0.56).
Conclusion: According to the changes in expression of vimentin and E-cadherin genes in ovarian tumor cells, and association between these two genes with clinical and morphological findings and the role of these genes in the migration and invasion, we can use the both genes, vimentin and E-cadherin, as genes involved in the EMT process to assess disease progression and incidence of cell invasion in ovarian cancer.
Fereidoon Memari, Seyed Hassan Emami Razavi , Fakhredin Kiani, Zahra Khzaeipour,
Volume 79, Issue 9 (December 2021)
Abstract
Background: Time management is effective in controlling stress especially for medical residents. Time management in the surgical field and residential education is very important as they are directly involved in treating patients. Proper time management will help decrease work-related stress and increase efficacy, although there is no time management in medical courses. There are few studies in Iran in this field. So, we designed this study to assess the effects of time management on improvement of educational and therapeutic services in surgical residents of Imam Hospital.
Methods: This before–after study was done in Imam hospital between February-March 2015. In this before-after study, 18 surgical residents of Imam Hospital (residents of 1-4 years), were enrolled. Their activities were evaluated in 11 scopes. To evaluate the effects of this self-evaluation, 5 scopes were assessed by the staff. The time during two weeks spent on each item was claimed as a percentage of 336 hours in two weeks. The self-assessment results and their effects on their scores were considered. Data regarding age, sex, and marital status were also gathered. Data were analyzed using SPSS software.
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Results: Eighteen residents were enrolled in this study. Ten residents were male (55.6%) and eight were female. Six (33.3%) were married. The mean age was 30±3.7 years. Resting time and emergency room time were significantly higher in the first-year residents while studying time was higher in the fourth-year residents. Second-year residents spend more time in training classes than others. The mean score at the beginning and the end of the study was highest in the forth-year residents and lowest in the first-year residents. All scores at the end of the study were significantly higher than the beginning except clinical judgment. The increase of the mean overall score was significantly higher in the fourth-year group and lowest in the first-year group.
Conclusion: Time management could improve the educational performance of surgical residents.
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Fatemeh Yarmahmoodi , Fatemeh Jaafarzadeh Sarvestani , Seyed Mostajab Razavinejad , Banafsheh Zeinali Rafsanjani ,
Volume 80, Issue 1 (April 2022)
Abstract
Background: Neonatal seizures can have many causes. Determining the underlying cause of neonatal seizures is very important in determining the prognosis, outcome, and treatment strategies. In this study, we have evaluated the frequency of Magnetic resonance imaging (MRI) findings in neonates younger than 6 months who had been referred to Shiraz Namazi hospital with seizures to determine the prevalence of various causes of seizures.
Methods: This was a retrospective study, that was performed on 199 neonates younger than 6 months of age who were hospitalized due to seizures in hospitals affiliated with Shiraz medical sciences from 21st March 2018 to 20 March 2019. Patient data were extracted by statistics and health information system and imaging data and its reports were extracted from picture archiving and communication system. The data were statistically analyzed by SPSS V26.
Results: In this study, 199 infants under the age of 6 months were examined, of which 124 (62.3%) were boys and 75 (37.7%) were girls. 97 infants (48.7%) were less than one month old and 102 ones (81.3%) were in the age group of 1-6 months. It should be noted that in terms of gender, 57.3% (71) of male infants and 49.3% (37) of female infants had abnormal MRI findings. 54.3% of patients had abnormal MRI findings and 45.7% had normal MRI. The most common abnormal finding was hypoxic-ischemic encephalopathy (HIE), which was the most common cause of seizures in 21.1% of neonates, followed by infection with 12.5% and cerebral hemorrhage with 11% of prevalence. Other important abnormal findings included hydrocephalus, structural abnormalities, venous sinus thrombosis, brain atrophy, developmental abnormality, etc. There was a combination of radiological findings in 18.56% of neonates.
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Conclusion: This study showed that hypoxic-ischemic encephalopathy is the most common cause of neonatal seizures. Considering that in this study, a significant percentage (54.3%) of the neonates had abnormal brain MRI, this finding indicates the importance of performing this radiological procedure in the diagnosis, prognosis, and duration of treatment in neonatal seizures.
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Seyed Khalil Pestehei, Mahdieh Ghiasi, Seyed-Hassan Emami-Razavi ,
Volume 81, Issue 7 (October 2023)
Abstract
Human mesenchymal stromal cells are multipotent cells capable of differentiating into the mesenchymal lineage that can be isolated from bone marrow and adipose tissue or from umbilical cord blood and fetal tissues. Among the widely characterized in vitro properties, MSCs show strong anti-proliferative and anti-inflammatory effects on immune responses Exosomes derived from mesenchymal stem cells derived from different tissues are promising cell-free treatments for tissue damage repair. Exosomes serve as a potential portal for cell-free drug delivery systems, as these drugs possess the properties of the parent cell from which they are derived. Extracellular vesicles (EVs) play key roles in cell biology and may provide new clinical diagnostics and therapies. Exosomes, called extracellular vesicles (EcVs), are present in almost all cells, tissues, and body fluids. They contribute to intercellular signaling and maintain tissue homeostasis. The biogenesis of exosomes starts in the endosomal system. Researchers have identified 9769 proteins, 2838 miRNAs, 3408 and 1116 lipids present in exosome of mRNA cargo. Isolation of exosomes from cells, tissues and body fluids follows a different pattern. Exosomes interact with receptor cells through their surface receptor molecules and ligands and are internalized into receptor cells through micropinocytosis and phagocytosis. This varies depending on the origin of the EV, its physiological and pathological state, and even the exact site of cellular release. The composition of the protein inside can also indicate the presence of disease pathologies such as cancer or inflammatory diseases; However, exosomes also contain a number of common proteins as well as proteins involved in vesicle formation. Advanced technologies in regenerative medicine have caused researchers to use exosomes isolated from mesenchymal stem cells (MSCs) with high regeneration ability in diseases. Exosome cargo plays a key role in diagnosis and treatment by controlling the disease process. Various studies in laboratory conditions have shown the effectiveness and therapeutic potential of exosomes in cancer, neurodegenerative, cardiovascular and orthopedic diseases. This article describes the therapeutic role and potential of exosomes derived from mesenchymal stem cells, as well as the necessary precautions for their processing.
