Forgotten urological stent.

"Forgotten" Ureteral stent DJ stent related complication is not uncommon even in the era of modern urology in the developed world. In this context we have undertaken a retro-prospective study in relation to its various causes, complications, management and prevention of forgotten stents in a single teaching institute. The study period was from January'04 to December'09. The sample size was 60. The effect of "forgotten stent" in our study reflects mild UTI to various complications including severe renal failure. We had approached all of our cases judiciously using various modalities of minimal access endourological techniques either alone or in combinations with successful outcome. The study concluded that it is vary easy to prevent "forgotten stent" and so its complications. However if we confront such unwanted complications that could be managed successfully with the use of endourological techniques. We did not use other techniques like laparoscopy and open surgery in this study.

Physical training induced resting bradycardia and its association with cardiac autonomic nervous activities.

Regular physical exercise causes resting bradycardia. This exercise-induced resting bradycardia may be associated with exercise-induced changes in Cardiac autonomic nervous activities (CANA). Power Spectral Analysis (PSA) of Heart rate variability (HRV) is one of the most promising new techniques to quantify CANA. Regular physical exercise induced bradycardia is associated with exercise-induced adaptation in CANA. To observe the HRV parameters by frequency domain method (PSA), in male adolescent athletes in order to find out the influence of regular physical exercise on resting heart rate (HR) and CANA. The cross sectional study was carried out on 62 adolescent male athletes aged 12-18 years (group B), in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University from 1st July 2007 to 30th June 2008. For comparison 30 age, sex and socioeconomic condition matched apparently healthy sedentary subjects (group A) were also studied. The study group was selected from the BKSP (Bangladesh Krira Shikka Prothistan, Savar, Dhaka) and the control from a residential school of Dhaka city. HRV parameters were assessed by Polygraph (Polyrite D, version 2.2). For statistical analysis Independent-Samples t-test was done as applicable. Resting mean HR was significantly (p<0.001) lower in the athletes. The mean value of Total (variance), VLF, LF and HF power was significantly (p<0.001) higher in athletes than that of non-athetes. Regular physical exercise-induced resting bradycardia is associated with exercise-induced adaptation in cardiac autonomic nervous activities.

Antioxidant effect of valsartan in experimental model of myocardial infarction.

This study was done to investigate the antioxidant effect of valsartan, an AT1 receptor blocker, when administered in experimental model of myocardial infarction (MI). MI was induced in rats by administration of adrenaline at a dose of 2 mg/kg body weight subcutaneously two injections 24 hrs apart and was assessed by significant elevation of marker enzymes (CK-MB and AST). Valsartan (30 mg/kg body weight) was administered through intragastric tube daily for 2 weeks in both pre- and post- MI groups. Oxidative stress was assessed by the activities of malondialdehyde (MDA) level and reduced glutathione (GSH) level in erythrocytes. In both treated groups, valsartan caused significant recovery of the biochemical markers, GSH and MDA level. These findings suggest that pre- and post-treatment with valsartan had an anti-oxidant effect in patients who are at risk of acute myocardial infarction.