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Biomedical subjects

Saadat Khan

Publications and source records attributed to Saadat Khan.

5 recordsLinked to original sources

Benign prostatic hyperplasia: mode of presentation and postoperative outcome.

OBJECTIVE: To find out various modes of benign prostate hyperplasia (BPH) presentation in our region and their relation to postoperative failure to void after transurethral resection of prostate (TURP). METHODS: A study was conducted at Urology Department, Sandeman Teaching Hospital Quetta and Akram Hospital (Private) Quetta from January 2000 to December 2003. All BPH patients in whom the primary mode of presentation was accurately determined and later on underwent TURP were included in the study. Four modes of presentation were defined: (1) lower urinary tract symptoms (LUTS), (2) acute retention, (3) chronic retention and (4) and acute on chronic retention. After relevant investigations all these patients underwent TURP. Postoperatively catheter was removed when the urine was clear, usually within 48 hours of operation. Patients failing to void were recatheterized and given a second trial without catheter (TWOC) at third day of recatheterization. Resumption of spontaneous voiding on either the first or second TWOC was defined as "successful TWOC". Failure to void on second TWOC was defined as "failure to void" and was managed by a six week period of catheterization, followed by an additional TWOC. Statistical analysis was used to see any significant relation of failure to void postoperatively to mode of presentation of BPH, age of the patients and weight of the resected prostatic tissues. RESULTS: A total of 345 BPH patients were included in the study. Of these 270 (78.3%) patients presented with urinary retention and 75 (21.7%) with lower urinary tract symptoms (LUTS). Patients who presented with retention were acute retention 129 (37.4%), chronic retention 81(23.5%) and acute on chronic retention 60 (17.4%). The proportion of men failing to void after TURP was significantly higher (P < 0.05) in those with (i) acute retention as compared to LUTS (ii) chronic retention compared to acute retention and (iii) acute on chronic retention as compared to acute retention. The proportion of men failing to void postoperatively was highly significant (P < 0.005) in those with retention of any type as compared to LUTS. Age of the patients and weight of the resected prostatic tissues were found not significant factors in relation to failure to void postoperatively. CONCLUSION: BPH patients in our region present very late, most of them (> 78%) with complication of urinary retention. Mode of presentation of BPH greatly influences the postoperative outcome of this disease. Patients presenting with complications of chronic and acute on chronic retention have less favourable results regarding pOstoperative voiding after TURP. Moreover age of the patient and weight of the prostate are not significant factors in relation to failure to void postoperatively.

Aged↗

Xanthogranulomatous pyelonephritis due to calculi: report of 63 cases and review of literature.

OBJECTIVE: To examine the relationship between clinical history and results of renal investigations in patients with xanthogranulomatous pyelonephritis. METHODS: A retrospective review was conducted on 63 cases presenting with histopathological diagnosis of xanthogranulomatous pyelonephritis between 1995 to 2002, at the department of Urology, Bolan Medical College and Sandeman Provincial Teaching Hospital Quetta. RESULTS: There were 26 males and 37 females having an average follow up of two years. Positive findings on examination and investigations at presentation were fever and flank pain in 59 (93.6%) patients and pyuria in 34 (53.9%) patients. All the patients had renal and ureteric calculi with no or severe reduction in the function of the affected kidney on DTPA scan. Hypertrophy of the contra lateral kidney was seen in 56 (88.8%) patients. CONCLUSION: Xanthogranulomatous pyelonephritis is a common entity in this part of the world. Late referral leads to loss of the kidney. Pre-operative diagnosis of the condition is desirable and if surgery is mandatory then all infected tissues have to be removed.

Adolescent↗

Evaluation of low ligation and high ligation procedures of varicocele.

OBJECTIVE: To describe the mode of presentation of varicocele and to compare the low ligation (Inguinal approach/Ivanissevich's procedure) and high ligation (Retroperitoneal approach/modified Palomo's procedure) of varicocele repair regarding efficacy and postoperative complications. DESIGN: Institutional-based randomized comparative clinical trial. PLACE AND DURATION OF STUDY: This study was conducted at the Urology Department, Bolan Medical College and Sandeman Provincial Teaching Hospital, Quetta from December 1996 to November 2001 (5 years). SUBJECTS AND METHODS: A total of 213 patients of varicocele who underwent treatment in the department and completed 6 months follow-up were included in the study. The mode of presentation of varicocele was recorded for all patients. For treatment purpose patients were randomly divided into two groups: in group I (n: 115) varicocele was ligated by inguinal approach (Ivanissevich's procedure) while in group II (n: 98) by retroperitoneal approach (modified Palomo's procedure). The efficacy and postoperative complications of the two procedures were carefully recorded and compared between the two groups. RESULTS: The mean age of the patients of group-I and group-II was 27.2 and 27.5 years respectively. More than 50% patients of both groups presented with feeling of heaviness/dragging sensation on ipsilateral side. Presentation with infertility/sub fertility in group-I and group-II was 16.5% and 15.3% respectively. Majority of patients of both groups had grade III varicocele with visible deformity. The rate of postoperative complications was very low in both groups of patients. Recurrence of varicocele and postoperative hydrocele formation were slightly more common in group-II as compared to group-I but the difference was statistically not significant (p>0.05). An extremely significant improvement occurred postoperatively in both sperms density and motility in infertile/sub fertile patients of both groups. CONCLUSION: Both procedures of varicocele repair are equally effective and have a low rate of complications. There is no significant difference in postoperative complications. An extremely significant improvement occurs in semen parameters of infertile/sub fertile patients postoperatively, irrespective of method/technique of varicocelectomy

Adolescent↗

Retrocaval ureter.

Two cases of retrocaval ureter are reported. A 22 years old male patient presented to us with the complaints of right flank pain and hematuria and a child of 2 years referred to us for evaluation of right side moderate hydronephrosis detected on ultrasound. The diagnosis was confirmed on intravenous urography and retrograde pyelography. Both the ends were transected and anastomosed above a JJ stent in front of the inferior vena cava. Postoperatively the patients remained asymptomatic and the hydronephrosis improved.

Adult↗

Bilateral anterolateral magnetic stimulation of the phrenic nerves can detect diaphragmatic fatigue.

BACKGROUND AND STUDY OBJECTIVES: Measurement of twitch transdiaphragmatic pressure (TwPdi) during bilateral phrenic nerve stimulation is presently the best method to detect diaphragmatic fatigue in humans. The stimulation methods that are currently employed (ie, transcutaneous electrical stimulation [TES] and cervical magnetic stimulation [CMS]) have limitations. Bilateral anterolateral magnetic stimulation of the phrenic nerves (BAMPS) was recently described. The purpose of this study was to determine whether BAMPS can reliably detect diaphragmatic fatigue, and to compare the results with BAMPS with those obtained with the other stimulation techniques. SUBJECTS: Twelve healthy subjects participated in the study. METHODS: TwPdi was measured during TES, CMS, and BAMPS before and 10, 30, and 60 min after a potentially fatiguing task. Voluntary hyperpnea to task failure was used as the fatiguing task because this task has previously been shown to reliably produce contractile fatigue of the diaphragm. To determine the reproducibility of BAMPS, TwPdi was measured before and after a nonfatiguing task in 10 of the subjects. RESULTS: TwPdi fell significantly after the hyperpneic task with all three stimulation techniques, and the amount by which TwPdi fell after hyperpnea was not significantly different for the different stimulation techniques. The percentage fall in TwPdi after hyperpnea was significantly correlated between stimulation techniques (CMS vs BAMPS, r = 0.72; TES vs BAMPS, r = 0.84; and TES vs CMS, r = 0.67). The mean (+/- SE) within-subject, between-trial coefficient of variation for TwPdi during BAMPS was 5.1 +/- 0.1%. CONCLUSION: BAMPS is highly reproducible and at least as good at detecting diaphragmatic fatigue as the other stimulation techniques.

Diaphragm↗