فهرست مطالب

Archives of Iranian Medicine
Volume:9 Issue: 3, Jul 2006

  • تاریخ انتشار: 1385/05/11
  • تعداد عناوین: 32
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  • M. Nasser, A. Al Hajeri Page 192
    ObjectivesThis study seeks to identify reports of RCTs by handsearching Archives of Iranian Medicine which is indexed in EMBASE. It will also determine the added value, if any, of the handsearch in minimizing potential effects of bias by comparing the reports found by the handsearch with what would have been found by searching EMBASE to examine the sensitivity of the EMBASE index term RCT. Any reports of trials found by the electronic search and missed by the handsearch will also be determined.MethodsIn January 2006, all issues of the Archives of Iranian Medicine (October 1998 to January 2006) were searched by hand from cover to cover for reports of trials. These were classified as RCTs or controlled clinical trials (CCTs) according to the Cochrane eligibility criteria for reports of randomized trials2 in which participants were definitely or possibly assigned prospectively to one of two or more alternative forms of health care using random allocation or some quasi-random method of allocation such as alternation, date of birth, or medical record number. The handsearcher classified reports of trials as RCTs if the groups compared in the trial were established by random allocation. If the author(s) did not state explicitly that the trial was randomized but randomization could not be ruled out, the report was classified as a CCT. CCT was also applied to quasi-randomized studies where the method of allocation was known but not considered strictly random (e.g. date of birth), and for possibly quasi-randomized studies. Photocopies of the bibliographic details and of the pages describing the study design of the reports identified were sent to the UK CC for verification and processing for submission to CENTRAL in The Cochrane Library.EMBASE (via OvidWeb) was searched to identify if the reports found by the handsearching were already included in this database, using a combination of words from the title and abstract of the relevant reports. The sensitivity of the EMBASE index term RCT was also assessed to see what proportion of the total number of known reports of randomized trials (found by the handsearch) were retrieved by this index term. The “gold standard” for the calculation of sensitivity was the handsearch. ResultsWe checked 376 articles in the Archives of Iranian Medicine and found reports of 20 RCTs and 1 CCT. A full list of the 21 articles is available from the corresponding author. Only thirteen (65%) of the reports of RCTs, found by the handsearch were indexed as RCTs EMBASE. Seven were not identified, of which four were published before this journal was indexed in EMBASE and three were not indexed with the term RCT. The added value of the handsearch in relation to EMBASE for those records indexed in EMBASE (from 2002) is therefore 3 of 16 (19%). The overall added value of the handsearch in relation to EMBASE for those records not indexed as RCTs in EMBASE (n = 3) or published before the journal was indexed (before 2002) in EMBASE (n = 4) is therefore 7 of 20 (35%).The electronic search of EMBASE, using the index term RCT found 14 reports of RCTs, of which 13 were also found by the handsearch. One report of an RCT was missed by the handsearch.A total of 21 reports of RCTs were found by using a combination of both handsearching and EMBASE searching. Of these 7 (33%) were identified only by the handsearch and 1 (5%) was identified only by the EMBASE search.DiscussionTo minimize bias due to the selective availability of data, systematic reviewers need to identify as many relevant studies as possible to provide reliable evidence on which to base health care decisions. It has been shown previously that the identification of trials from bibliographic databases can be problematic.4 In an effort to minimize the effects of lack of availability of appropriate indexing terms and inconsistencies in indexing (indexing bias), The Cochrane Collaboration has carried out systematic electronic searches of MEDLINE and EMBASE using extensive search strategies designed to be sensitive i.e. to avoid missing reports of trials. The reports of trials, which were identified by an assessment of the titles and abstracts only using these sensitive search strategies, are included in CENTRAL. However, despite sensitive searching of electronic databases, it has been found that handsearching still provides additional reports of trials missed by the electronic searches.10, 11 Our study revealed that for the reports of randomized trials found by the handsearch and also indexed in EMBASE, the indexing was largely consistent, with high sensitivity (13 of 16, 81%). This finding contrasts with two recent studies,12,13 which compared the handsearch of journals published in Arab countries with electronic searches of EMBASE, where the indexing was found to be inconsistent and led to a number of reports being missed by the electronic search.Four of the seven reports missed by the electronic search in our study came from issues of the journal which were published before the journal was indexed. The Archives of Iranian Medicine has been indexed in EMBASE since January 20028 and in MEDLINE only since the beginning of 2006. This finding confirms the importance of handsearching journals to make available the reports of trials from issues of journals published before the journal was indexed in electronic databases. The electronic search of EMBASE contributed an additional report of an RCT not found by the handsearch, which is consistent with similar findings10 that a small number of reports of RCTs are missed by handsearching.
  • S. Nasseri, Moghaddam, R. Malekzadeh Page 196
  • M. Mahmoodian, Shooshtari, A. Pourfathollah Page 200
  • M. Saberifiroozi, S. Gholamzadeh, A. R. Serati Page 204
    Background
    Health care workers are at increased risk of occupational exposure to hepatitis B virus (HBV) infection. Reassessment for revaccination of such high-risk persons after 10 years may be appropriate if anti-HBs antibody titers declined below 10 mIU/mL. This study was conducted to evaluate the long-term efficacy of HBV vaccine in health care workers and the need for their reassessment for revaccination.
    Methods
    We interviewed 600 health care workers in a referral hospital in Shiraz, southern Iran. They were asked to complete a confidential questionnaire including information on their age, gender, vaccination date, number of doses of vaccine, their job description in hospital, previous history of needlestick injury, and educational level. Anti-HBs antibodies were determined by the ELISA method and titers of >10 mIU/mL were considered protective. Those with a positive HBsAg or anti-HBcAb were excluded from the study.
    Results
    Among 600 health care workers interviewed, 339 subjects who accepted to participate in the study, were vaccinated with three doses of HBV vaccine. Anti-HBsAb titers were >100 mlU/mL in 211 subjects (62.2%), 10 – 100 mlU/mL in 85 (25.1%), and <10 mIU/mL in 43 (12.7%) persons. Among 339 subjects who received three doses of vaccine, 273 were vaccinated less than 5 years, 47 cases between 5 – 10 years, and 19 cases were vaccinated more than 10 years before the study. The majority of them had an antibody concentration above the protective level (88.1%, 88.9%, and 60.9%, respectively, P = 0.001).
    Conclusion
    Reassessment for revaccination in health care workers should be considered according to their anti-HBsAb levels 10 years after vaccination. In our health care workers, we think that due to the existence of low immunity against HBV, reassessment for revaccination after 10 years is mandatory.
  • S. Khalilzadeh, H. Masjedi, M. Hosseini, A. Safavi, M. R. Masjedi Page 208
    Background
    Tuberculosis (TB) continues to be a major health problem in developing countries. Contact investigation is the most appropriate strategy to interrupt transmission and subsequent development of TB.
    Methods
    This cross-sectional study was conducted to assess the impact of contact screening on case-finding by using tuberculin skin test chest radiography. Contacts of smear-positive patients with pulmonary TB (index cases) were diagnosed and registered in our center during 2002 – 2004. Contacts, defined as household members living with index cases for >30 days, were screened by sputum examination, tuberculin skin test, and chest radiography.
    Results
    Sixty-eight patients with smear-positive pulmonary TB were considered as index cases. A total of 224 close contacts with index cases (an average of 3 contacts for each index case) were detected. Age among contacts ranged from 6 months to 74 years. Eighty-three percent of contacts were Iranians and 17% were Afghans. Abnormal radiographs were seen in 49.6% of contacts. Sixteen point five percent of contacts had a positive tuberculin skin test of >10 mm; 7.6% had a positive sputum smear. The mean ± SD age of Iranian contacts (29.1 ± 16.6 years) was significantly (P < 0.001) higher than that of Afghans (18.6 ± 14.1 years). Cavitary formation, nodular pattern, and infiltration were found to have a strong association with a positive sputum smear for acid fast bacilli (100%, 100%, and 87%, respectively).
    Conclusion
    The rate of TB in contacts was higher than other similar studies. Earlier detection and treatment of adults with TB could interrupt transmission and be a step towards eliminating childhood TB. Contact control and source-case investigations should be emphasized for TB control. Novel strategies are needed to maximize the number of contacts who are not only identified and evaluated, but also completely treated.
  • A. Azargoon, S. Darvishzadeh Page 213
    Background
    Bacterial vaginosis and Trichomons vaginalis are believed to be the risk factors for preterm labor birth and preterm prelabor rupture of membranes. The objective of this study was to investigate the association between bacterial vaginosis, T.vaginalis, and vaginal pH with preterm labor birth and preterm prelabor rupture of membranes after excluding other known risk factors.
    Methods
    In this cohort study, we enrolled 1223 pregnant women with gestational age of 16 – 36 weeks from Amir-Almomenin G eneral Hospital in Semnan, Iran, who had no known medical risk factors for preterm labor birth. Bacterial vaginosis and T.vaginalis were determined on the basis of vaginal pH, saline wet mount, and Amsel tests. The principal outcome was delivery before 37 weeks of gestation and preterm prelabor rupture of membranes.
    Results
    Bacterial vaginosis and T.vaginalis were detected in 16.0% and 5.5% of these women, respectively. Bacterial vaginosis was positive in 65 (33.1%) patients at 16 – 20 weeks of gestation and in 134 (66.9%) patients at 36 weeks of gestation or during labor (developing preterm labor birth or preterm prelabor rupture of membranes). The frequencies for T.vaginalis were 20 (29.9%) and 47 (70.1%) patients, respectively. All patients with bacterial vaginosis and T.vaginalis had a vaginal pH ≥5. There was a significant correlation between bacterial vaginosis and vaginal pH ≥5, with preterm labor birth (OR: 5.99; CI: 3.79 – 9.49) and preterm prelabor rupture of membranes (OR: 2.34; CI: 1.07 – 4.99). Moreover, a significant correlation was found between vaginal pH ≥5 with preterm labor birth (OR: 5.82; CI: 2.96 – 11.39) and preterm prelabor rupture of membranes (OR: 4.11; CI: 1.62 – 10.12). There was no significant correlation between T.vaginalis with preterm labor birth (OR: 0.73; CI: 0.22 – 2.17) and preterm prelabor rupture of membranes (OR: 1.22; CI: 0.29 – 5.05).
    Conclusion
    The presence of bacterial vaginosis or vaginal pH ≥5 at 16 – 36 weeks of gestation is associated with an increased risk of preterm labor birth and preterm prelabor rupture of membranes.
  • M. Mohraz, A. Ramezani, L. Gachkar, A. A. Velayati Page 218
    Background
    The objective of this study was to determine the frequency of positive purified protein derivative (PPD) skin test in those infected with human immunodeficiency virus (HIV) and to investigate its association with CD4-positive T cell count, demographic factors, and possible routes of transmission in Iran.
    Methods
    Fifty-one (36 males and 15 females) patients from an HIV clinic were selected and tested by a 5-tuberculin unit PPD.
    Results
    The mean ± SD age of patients was 32.2 ± 7.9 years. The probable route of HIV transmission was intravenous drug using in 21 (41%, CI95%: 28 – 54%) and sexual transmission in 17 (33%, CI95%: 20 – 46%) patients. Thirteen (26%, CI95%: 14 – 38%) patients had other risk factors. There were 13 (25%; 10 males and 3 females) PPD-positive patients among HIV-infected patients when a cut-off value of 5 mm was used; there were 15 (29%; 11 males and 4 females) when a cut-off point of 2 mm was employed. In addition, there was no significant correlation between the PPD test using both cut-off values of 5 and 2 mm, and none of the three probable routes of HIV transmission including intravenous drug using, sexual, and others. The mean ± SD CD4+ T cell count was 674 ± 487/mm3 in men and 573 ± 327/mm3 in women (P > 0.05). No significant correlation could be demonstrated between the patient’s PPD positivity rate and CD4+ T cell count.
    Conclusion
    Considering the high rate of tuberculin reactivity, more attention should be paid to the importance of PPD test and isoniazid preventive therapy against tuberculosis in HIV-infected patients.
  • T. Shokohi, K. Nowroozpoor, Dailami, T. Moaddel, Haghighi Page 222
    Background
    Fungal keratitis is a suppurative, ulcerative, and sight-threatening infection of the cornea that sometimes leads to loss of the eye. The objectives of this study were to improve facilities for laboratory diagnosis, to determine the predominant causative microorganisms, and to identify the predisposing factors of mycotic keratitis patients.
    Methods
    A prospective study of corneal ulcer was conducted in Sari between May 2004 and March 2005. Patients who presented with clinically suspected corneal ulcer to the Ophthalmology Department of Bou-Ali Sina University Hospital in Sari were included in this study. Each patient was examined with slit lamp. Data were collected by examining and questioning the patients. Using standard techniques, corneal scraping was performed by an ophthalmologist. The specimens collected were then smeared on two slides, which were stained with Gram stain (for bacterial keratitis) and 10% potassium hydroxide with or without Calcofluor white stain (for fungal keratitis), and studied under light microscope. The specimens were also inoculated directly on blood agar, Sabouraud dextrose agar, and potato dextrose agar in C-shaped streaks.
    Results
    A total of 22 patients met the inclusion criteria of this study, among whom 10 (45.5%) were females and 12 (54.5%) were males. The mean ± SD age of patients was 61.5 ± 17.7 (range: 15 – 83) years. In direct microscopy, branching, and septate hyphae were identified in 7 (31.8%) patients. Two (28.6%) fungi (Aspergillus fumigatus and Fusarium spp.) were isolated. Five (31.8%) patients with fungal keratitis were males and 2 (28.6%) were females. The mean ± SD age of patients with fungal keratitis was 60.4 ± 12.1 (range: 39 – 73) years. Three (42.85%) patients with fungal keratitis were farmers. The mean interval between the onset of symptom and diagnosis was 26.4 (range: 1 – 93) days. Trauma with plant debris and straws were noted in two (28.6%) patients with fungal keratitis. Five (71.4%) patients received topical antibiotics. Analyses, using potassium hydroxide with or without Calcofluor white as the gold-standard test, revealed a sensitivity of 71.4% for potassium hydroxide, and 42.9% for Gram stain.
    Conclusion
    Infections of the cornea due to filamentous fungi are frequent causes of corneal damage and should always be kept in mind. The direct microscopy method is an essential tool in the diagnosis of fungal keratitis. Therefore, wet mount preparation with potassium hydroxide with or without Calcofluor white or only KOH can be relied upon as the single most important screening test for rapid diagnosis of fungal corneal ulcer.
  • F. Ghalamkarpour, S. Nasiri Page 228
    Background
    Acne is a chronic inflammatory disease of pilosebaceous units. In addition to an unpleasant appearance, it may result in scarring in some cases. Despite the introduction of different treatments, oral isotretinoin is the most effective treatment and affects all the factors involved in the pathogenesis of this disease. This study was performed on patients with acne to examine the therapeutic effects, recurrence rate, and adverse effects of this drug.
    Methods
    One hundred patients with acne, who were visited at the Bou-Ali Hospital during 2000 – 2001, and found eligible to take part in this study were selected. The severity of acne was graded at the beginning, during, and after a 6-month treatment course with oral isotretinoin. Necessary laboratory tests were done.
    Results
    The data of 83 of 100 patients who continued the treatment for 6 months were analyzed. The mean ± SEM severity score of acne improved from 3.15 ± 0.10 to 0.58 ± 0.09 (P < 0.0001). Complete cure was achieved in 65% of patients. The mean ± SEM follow-up was 8.7 ± 2.3 months and the acne severity score was 1.04 ± 0.13 during the follow-up period. Overall, the recurrence rate was 19%; 4% of patients had to undergo retreatment. A rise in triglyceride level was the only significant laboratory alteration observed.
    Conclusion
    Oral isotretinoin appears to have favorable results and the least adverse effects in treatment of carefully-selected patients with acne.
  • H. Reihani, Kermani, M. Ansari, S. Karamousian Page 231
    Background
    Previous studies have demonstrated that pharmacokinetic behavior of several drugs such as paracetamol, theophylline, and aminoglycosides are significantly altered in patients with spinal cord injury. So far, no study on pharmacokinetics of carbamazepine has been performed in patients or experimental models with spinal cord injury. The present study was designed to find the influence of experimental spinal cord injury on carbamazepine pharmacokinetics.
    Methods
    Among 12 male albino rabbits, 6 were subjected to spinal cord injury at the 8th thoracic level by knife severance method and 6 rabbits underwent laminectomy alone (sham-lesioned control group). All received a single oral dose of carbamazepine (20 mg/kg) 24 hours after the injury. Blood samplings were done at predetermined times to 96 hours after drug administration. Carbamazepine concentration in serum samples was determined by high-performance liquid chromatography. Pharmacokinetic parameters including maximum concentration, time to reach maximum concentration, half-life, and area under the curve0 – 24 were directly determined from the concentration-time curve. Area under the concentration against time curve 24-infinity was calculated from the real data.
    Results
    Maximum concentration was appeared at 2.8 hours after administration in sham-lesioned control group at a concentration of 2.3 µg/mL, whereas in spinal cord injury group it was appeared at 4.4 hours at a concentration of 2.7 µg/mL. In spinal cord-injured group, area under the curve and half-life were increased from 29.1 µg/mL.hr to 38.7 µg/mL.hr and from 7.7 hr to 14.1 hr as compared with the sham-lesioned control group, respectively. Statistical analyses of data showed that spinal cord injury does not induce significant changes in carbamazepine pharmacokinetics.
    Conclusion
    We concluded that pharmacokinetic behavior of carbamazepine was not significantly changed by spinal cord injury, although its subtle pharmacokinetic changes could be resulted from alteration in gastrointestinal tract motility, blood perfusion, or metabolism.
  • J. Akhondian, F. Heydarian, S. A. Jafari Page 236
    Background
    This study was performed in children aged <15 years, at the Pediatric Neurology Clinic of Imam Reza Hospital affiliated to Mashhad University of Medical Sciences. The objective of this study was to recognize the main predisposing factors that result in uncontrolled seizures in patients so that we can start the treatment accurately.
    Methods
    There were two groups of patients; group I, consisted of 51 patients, with minimum refractory seizures of one episode per month while taking at least two antieplieptic drugs, and group II, comprised of 80 well-controlled patients chosen at random, who had no fit within 6 months after starting the treatment.
    Results
    Factors affecting the occurrence of refractory seizures included age <1 year, multiple seizures before starting the treatment, male gender, myoclonic seizures, neurologic defects, neonatal and daily seizures, and first abnormal electroencephalogram and brain computerized tomo­graphy scan.
    Conclusion
    There are several factors that can predict development of uncontrolled seizures. Knowledge of these factors helps us to discriminate our patients and pay more attention to those at risk of developing uncontrolled seizures.
  • K. Ghandehari, Z. Izadi, Mood Page 240
    Background
    Stroke in young adults causes morbidity in this socioeconomically-active age group. Etiologic frequency of ischemic stroke in young adults is different around the world. This study was conducted to determine the causes of stroke in Iranian young adults.
    Methods
    The study population consisted of 314,000 young adult residents in the Southern Khorasan Province, East of Iran. All the patients with stroke, admitted to Vali-e-Asr Tertiary Care Hospital, entered this study. Demographic data, clinical presentation, and investigations of consecutive patients aged 15 – 45 years, presented with ischemic stroke, were registered in Southern Khorasan Stroke Database between 2000 and 2005. All the patients underwent a standard battery of diagnostic investigations by a stroke neurologist. Etiologic classification of stroke in the patients was made based on the Practical Iranian Criteria.
    Results
    One hundred and twenty-four patients (60 females and 64 males) were prospectively investigated during a 5-year period. The incidence of ischemic stroke in young adults was 8/100,000 per year. Cardioembolic mechanism constituted 54% of all stroke etiologies in young adults. Rheumatic valvular heart disease was present in 32% of the patients and caused 2.5 preventable stroke cases per 100,000 young adults per year.
    Conclusion
    Rheumatic valvular heart disease is the most common cause and a preventable etiology of stroke in Iranian young adults.
  • M. H. Baradaranfar, P. Dabirmoghaddam Page 244
    Background
    The use of endoscopic surgery for nasal and sinus pathologies has revolutionized our approaches towards the diseases of these areas.
    Objective
    To report our experience with endoscopic surgery of benign tumors and tumor-like conditions of the nose and paranasal sinuses.
    Methods
    The medical records of 105 patients with benign sinonasal tumor, who had undergone endoscopic surgery for removal of their neoplasm between 1997 and 2003, were retrospectively studied.
    Results
    The studied patients included 32 with juvenile nasopharyngeal angiofibroma, 24 with inverted papilloma, 23 with benign fibroosseous lesions, 18 with pyogenic granuloma, 6 with intranasal hemangioma, and 2 with pleomorphic adenoma. The patients had a follow-up ranging from 9 to 73 (mean: 41) months. During the follow-up period, the patients were under close observation by performing serial endoscopy and yearly CT scan. Eight cases of recurrent tumor—2 angiofibroma, 4 inverted papilloma, 1 fibrous dysplasia, and 1 osteoma—were noted and managed endoscopically alone or in combination with Caldwell-Luc approach. The major complication encountered in this study was cerebrospinal fluid leakage (2 cases) that was sealed intra-operatively with local tissue flaps without any further sequela.
    Conclusion
    Endoscopic surgery is a valuable tool for removal of benign tumors of the nose and paranasal sinuses in the hands of an experienced surgeon
  • M. Vasei, N. Azarpira, A. Talei Page 250
    Background
    Expression of hormone receptors is routinely evaluated in predicting tumor response to hormone therapy in breast cancer patients. Normal female genital organs show cyclic changes in the expression of estrogen and progesterone receptors. This study was designed to assess variations in estrogen and progesterone receptor expression rates in breast cancer patients, who were operated in different phases of the menstrual cycle.
    Methods
    From 2001 through 2004, 161 premenopausal patients with breast cancer, who were operated on, were enrolled into this study. Immunohistochemistry for the expression of estrogen and progesterone receptors was performed on their tumor paraffin blocks, using antibodies against estrogen and progesterone receptors.
    Results
    Estrogen receptor expression was seen in 24 out of 30 cases (80%) in early luteal phase, which was significantly higher than that of those operated in early follicular (53%), late follicular (51%) and late luteal (49%) phases (P < 0.05). Progesterone receptor expression also showed a rising trend in the early luteal phase (87%), as compared with the other phases (P = 0.09).
    Conclusion
    Expression of estrogen/progesterone receptor shows cyclic changes in breast cancer patients, being highest in the early luteal phase of the menstrual cycle. This variation implies that this phase of the cycle could be the golden time for evaluation of estrogen/progesterone receptor status.
  • A. A. Alavi, E. Amirhakimi, B. Karami Page 254
    Background
    The association of dental caries and diabetes mellitus has not received enough attention, in spite of the fact that both diseases are associated with the ingestion of dietary carbohydrates. This study was undertaken in Fars Province, southern Iran, to determine the prevalence rates of dental caries in a group of metabolically well-controlled patients with type I diabetes mellitus and in a control group.
    Methods
    Fifty patients (22 boys and 28 girls) with type I diabetes mellitus under follow-up of the Endocrinology and Metabolism Research Center of Shiraz University of Medical Sciences, with a mean ± SD age of 11.72 ± 3.36 years and mean ± SD fasting blood sugar of 235.74 ± 103.61 mg/dL, entered this study. A similar study was conducted to determine the prevalence of dental caries in 12-year-old school children in Shiraz, Iran who served as the control group. After completing a questionnaire, the patients were examined separately by two dentists. Before the clinical examination, bitewing radiographies were performed. Student’s t- and Chi-square tests were used for statistical analysis in relation to sex, age of onset of diabetes mellitus, socioeconomic and nutritional status, family history of diabetes mellitus, and orohygiene status.
    Results
    The mean ± SD DMFT for diabetic children was 9.64 ± 4.64 (decayed = 8.12 ± 3.90, missing = 0.62 ± 1.34, and filling = 0.90 ± 2.10). The lower permanent first molars were the most frequency decayed and the incisors were the healthiest teeth. DMFT score and the frequency of decayed teeth were higher in boys than in girls. However, the rate of filling and missing teeth were higher in girls. DMFT and the number of decayed teeth were higher in patients with poor oral hygiene. The number of healthy first permanent molars was much higher in the mixed dentition groups than in those with permanent teeth. A direct correlation was found between the health status of the first permanent molar tooth and having type I diabetes mellitus.
    Conclusion
    Oral hygiene was somewhat poorer in diabetic patients than in the control group. Regular dental check-ups for preventive measures such as fluoride therapy, fissure sealant, regular medical follow-ups for proper control of metabolic abnormalities to decrease occurrence of xerostomia, omission of cariogenic substances from dietary regimen, fluoridation of drinking water, and individual and group education of diabetic patients regarding proper dental hygiene are recommended
  • M. S. Farahvash, S. Mohammadzadeh Page 261
    Objective
    To explore the multifocal electroretinogram in patients with nonproliferative diabetic retinopathy with clinically-significant macular edema.
    Methods
    Forty-one eyes with clinically significant macular edema were tested. The latencies and amplitudes of average responses of 5 eccentric rings from 0 to 26 degrees relative to the fixation point were compared with normal values obtained from 13 nondiabetic subjects.
    Results
    Local electroretinogram responses were significantly delayed and decreased in amplitude in patients with clinically-significant macular edema.
    Conclusion
    Multifocal electroretinogram can be used to quantify the visual function in clinically significant macular edema.
  • F. Mojtahedzadeh, M. Kosaryan, M. R. Mahdavi, J. Akbari Page 266
    Folic acid is a coenzyme for many important biochemical reactions including synthesis of purines, pyrimidines, and nucleoproteins. The recommended daily allowance of folic acid is 65 – 200 µg/day for infants and children. The recommended dose for deficiency states is 1000 µg/day; the effects of excess amounts of folic acid are unknown. The role of folic acid in preventing progression of arteriosclerosis is rather a new issue. Thrombotic events related to slightly elevated levels of homocystein in adults may be decreased by daily consumption of 1 mg of folic acid together with 5 – 100 mg of pyridoxine.
  • S. Shirani, V. Rekabi, N. Kamalian Page 269
    Sirenomelia is a very rare anomaly presented with fusion of the lower limbs. Genitourinary, neural tube, and vertebral anomalies are found in most cases. We report a case of sirenomelia with agenesis of corpus callosum, which has not been reported previously
  • S. Motamed, P. Mafi, M. Shariati, E. Arasteh Page 271
    Tissue expanders can be used over the dorsum of hand and fingers to increase available tissue for flap coverage after release of syndactyly. Herein, we presented an 18-year-old man who had an unusual complex syndactyly in the middle and ring fingers of his right hand. He had also complete fusion of the proximal phalanges. In this report, we described the application of tissue expander to cover separated exposed bones.
  • M. T. Arzanian, A. Khaleghnejad, Tabari Shamsian, F. Jadali, A. Gharib, H. Esfahani Page 274
    Myelolipoma is a benign tumor originating from hematopoietic and adipose tissue. This tumor usually develops in the adrenal gland, but rare presentations of extraadrenal myelolipoma are also reported, which usually arise from the presacral region. Herein, we present a 6-year-old girl with myelolipoma with generalized involvement of her abdomen, pelvis, chest, and retroorbital region.
  • M. Khoddami, S. Sanae, B. Nikkhoo Page 277
    Inflammatory myofibroblastic tumors are neoplasms characterized by spindle cell proliferation and a fiboinflammatory vascular stroma. Herein, we presented the successful treatment of a rectal inflammatory myofibroblastic tumor in an 11-year-old boy who presented with diarrhea and abdominal pain of 1½ months duration and an appendiceal inflammatory myofibroblastic tumor in a 29-year-old man presented with recurrent abdominal pain of two months duration with associated tenderness and rebound tenderness in the right lower abdomen. Histologically, our cases had inflammatory myofibroblastic tumors very similar to that of other sites; the spindle cells were positive for vimentin and muscle-specific actin.
  • A. Afshar, F. Mirzatoloei Page 282
    A 30-year-old man was referred to us with carpometacarpal joint dislocation of the thumb and fracture of the trapezium. The lesion was managed with closed reduction and percutaneous insertion of pin, resulting in good functional outcome.
  • Z. Oloomi, H. Moayeri Page 284
  • R. Malekzadeh, B. Pezeshky, M. Hormazdi, N. Rakhshani, Z. Soroush Page 291
  • R. Yaghoobi, N. Sina, N. Ranjbari Page 293
  • K.Vessal Page 304
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