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Volume 65, Issue 2 (8 2008)
Background: Traumatic tympanic membrane (TM) perforation is a common injury of the ear with a high rate of spontaneous healing if the patients strictly adhere to water precautions. The purpose of this study was to determine the factors involved in the spontaneous healing of traumatic TM perforations in order to ascertain the best treatment plan including observation, paper patch and finally surgery.
Methods: In this correlative–descriptive study, we recorded the outcome of each patient with three-month follow up. Included in this study were a total of 202 forensic medicine patients from the Dept. of Otolaryngology Head & Neck Surgery at the Yazd University of Medical Sciences, Yazd, Iran. All patients included in this study had traumatic TM perforation. Based on otoscopic examination, the perforations were classified as pinpoint or large. All patients received an audiometry exam and were followed for three months. The data was collected using a special form and analyzed by chi-square test, Fisher exact test and ANOVA.
Results: This study consisted of 118 male and 84 female patients with a mean age of 23.6 years (6-48 years). The types of trauma included compression injury (104 patients), instrumental injury (59 patients), burn–slag injury (2 patients) and blast injury (1 patient). One hundred and eighty patients had pinpoint TM perforations, 99.4% of which healed spontaneously by the second month, and 32 patients had large TM perforations, 50% of which healed spontaneously by the second month. During the first month, 87.3% of the patients observing water precautions had healed, however the healing rate was only 5.6% in patients not adhering to water precautions, who suffered from otorrhea. Therefore, during this study, 185 (91.58%) patients had spontaneous healing by two months and only 6 patients of remaining 17 patients healed with paper patch. The mean hearing loss at 500, 1000 and 2000 Hz was 10.55 dB (5-30 dB).
Conclusion: In our experience, patients with traumatic TM perforations have higher spontaneous healing rate when observing water precautions. Furthermore, we recommend observation and paper patching for three months before attempting any surgical intervention in such patients.
Volume 66, Issue 8 (5 2008)
Background: Dimethyl sulfoxide (DMSO) has been used as a solvent for many drugs in ischemic experiments. DMSO has many biological benefits, including antioxidant, anti-inflammatory, platelet aggregation inhibiting and cell membrane stabilizing effects. Moreover, some experimental studies report that DMSO has a neurprotective effect in permanent focal cerebral ischemia. Despite the effect of DMSO on the cortex, striatum injuries and motor neurological dysfunctions in transient focal cerebral ischemia are not completely clear.
Methods: Thirty-six male Sprague-Dawley rats weighing 300-350 g were divided into saline- (control) and DMSO-treated groups. Under chloral hydrate anesthesia (400mg/kg, ip), transient focal cerebral ischemia was induced by 90-min middle cerebral artery occlusion (MCAO) followed by 23-h reperfusion. Rats received saline (n=11) or 2% DMSO intraperitoneally at doses of 0.01 (n=11), 0.1 (n=7) and 0.2 (n=7) ml/kg 30 min prior to induction of ischemia. Twenty-four hours after MCAO, the neurological deficit scores were ascertained. Cortical and striatal infarct volumes determined by triphenyltetra-zolium chloride staining.
Results: Administration of DMSO at doses of 0.1 and 0.2 ml/kg significantly reduced cortical and striatal infarct volumes (p<0.001), while rats receiving the 0.1 ml/kg dose had infarct volumes similar to those of the control group (p=0.225). Moreover, only 0.2 ml/kg doses of DMSO significantly reduce neurological motor dysfunction (p<0.001).
Conclusions: Findings of this study indicate that DMSO is a potent neuroprotective agent against transient focal cerebral ischemia in rat. Moreover, our data also suggest that DMSO may be a candidate for acute stroke treatment.
Volume 69, Issue 7 (7 2011)
Background: Numerous studies have shown the protective effects of saffron against oxidative damage in a global model of cerebral ischemia, but its effects on brain edema and oxidative ischemic injury in focal ischemic stroke are not completely understood. Therefore, this study was designed to investigate the effects of saffron on brain edema, infarct volume, antioxidant enzyme activity (glutathione peroxidase and superoxide dismutase) and concentration of malondialdehyde (MDA) in ischemic brain tissue in an experimental model of stroke.
Methods: Focal brain ischemia was established with the temporary occlusion of the middle cerebral artery for one hour in rats. Saffron (100 mg/kg) was given intra-peritoneally at the onset of ischemia. 24 hours later, brain edema and infarct volume were evaluated and glutathione peroxidase and superoxide dismutase activities and MDA concentration were measured in the ischemic brain tissue using a specific kit.
Results: The results showed that saffron reduced infarct volume by 77% (P<0.001) and brain edema by 60% (P<0.001) compared with the control group in 24 hours following ischemia. Moreover, saffron significantly reduced the content of MDA (P<0.001) and increased the activity of superoxide dismutase (P<0.001) and glutathione peroxidase (P<0.001) in the cortex of the ischemic brain tissue.
Conclusion: Saffron has protective effects against oxidative ischemic damage and brain edema in a transient model of focal cerebral ischemia in rats. This protective effect is probably induced by increasing the capacity of antioxidant enzymes and decreasing the production of free radicals.
Volume 75, Issue 11 (February 2018)
Methods: This cross-sectional study was performed on two hundred children (two groups of hundred individuals each) aged 6 months to 10 years old hospitalized in the emergency department of Taleghani Hospital (Gorgan city) from May to July 2016. The first group aged 6 months to 3 years and the second group 3 to 10 years old. After obtaining the parental consent, 3 ml of blood sample were taken to determine immunoglobulin M (IgM) against HAV using commercial ELISA kits (Dia.Pro Diagnostic, Milano, Italy) and the children’s’ demographic data were recorded.
Results: The study was conducted on two hundred children. Of these patients 127 (63.5 percent) were boys and 73 (36.5 percent) girls. Overall, 11 percent [twenty-two patients including eight (8 percent) in the first group and Thirteen (13 percent) in the second group] were serologically positive for hepatitis A. There was no significant difference between the groups in terms of age and sex. (P= 0.239) and (P= 0.535). Only 11 percent of children under 10 years old were infected by hepatitis A and 89 percent of children had no history of contact or infection.
Conclusion: Based on this study, the incidence of hepatitis A infection was about 11% in children under 10 years old, which indicates a reduction in exposure with this virus. It may seem reasonable based on health policy but the adverse effect of this trend is later probability of contacts with Hepatitis A patients and occurrence of HAV in older ages. Therefore, we can conclude that HAV infection has been shifted to older ages.
Volume 77, Issue 10 (January 2020)
Methods: This descriptive-analytical study was conducted on 564 married women between the ages of 18 and 55 under the cover of Zanjan University of Medical Sciences (ZUMJ), Zanjan City, Iran, among whom referring to ZUMJ educational centers from March to August 2012. A simple random sampling method was used. The data collection tool was a 14-item changes in sexual functioning questionnaire (CSFQ-14) completed by the self-efficacy method.
| Results: The results of this study showed that 79.5% of women studied had some degree of sexual dissatisfaction. The study showed that with increasing age, the degree of dissatisfaction with marital relationships increased from 3.1% in the age group of 14-19 years to 38.2% in the age group of 30-39 years. Also, the rate of sexual dissatisfaction increased with the increase in education, and the highest degree of dissatisfaction was in the group with diploma education and the next stage, those with university education. The results of the study reported the highest proportion of dissatisfaction with sexual relations in the housewife group, and dissatisfaction with sexual relations increased significantly with an increasing number of years of marital life. Conclusion: According to the results of this study, the prevalence of dissatisfaction especially with respect to sexual orientation among women is higher than expected, which is a threat to the individual and social health of individuals. |
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