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Biomedical subjects

S Z Zaidi

Publications and source records attributed to S Z Zaidi.

8 recordsLinked to original sources

Lower pole heminephrectomy: its role in treating nonfunctioning lower pole segments.

PURPOSE: We assessed the role and long-term outcome of lower pole heminephrectomy in the treatment of nonfunctioning lower renal moieties in children with duplex kidneys. MATERIALS AND METHODS: Between 1979 and 1994, 54 lower pole heminephrectomies were performed in 53 patients 1 to 192 months old (mean age 54) with duplex systems. A total of 15 patients was prenatally diagnosed, while the others presented with a urinary tract infection (36), orchiepididymitis (1) and failure to thrive (1). The surgical technique was essentially similar to that of upper pole heminephrectomy. RESULTS: Operative course was uneventful except for intraoperative bleeding in 5 cases, which necessitated blood transfusion, and a postoperative urinary tract infection in 1. Followup ranged from 3 to 168 months (mean 56.9). Postoperative renograms available in 34 cases showed unchanged differential function in 12 and an ipsilateral 2 to 14% decrease (mean 5.65%) in 22. No late complications were detected except in 1 patient, who had postoperative urinary tract infections and subsequently underwent removal of the ureteral stump. Our series includes 4 patients with solitary ipsilateral upper poles (after the contralateral kidney was removed or nonfunctioning) who had good renal function at long-term followup despite the reduced parenchymal mass. CONCLUSIONS: Based on our experience it seems that lower pole heminephrectomy is the treatment of choice in cases of nonfunctioning dilated lower segments of duplicated kidneys.

Adolescent↗

Blood pressure and its correlates in the population of Multan, Pakistan.

In a randomly selected sample of 1579 individuals (male = 1334 and female = 245), aging from 14 to 65 years and representing all the socioeconomic groups of Multan, age (Yr), height (cm), weight (kg), BMI (kg/ml) and blood pressure (mmHg) were recorded. Height was measured on a Holtain portable stadiometer, weight on beam scale and blood pressure was recorded with sphygmomanometer as per auscultatory method. The correlation coefficient between different independent (age, height, weight and BMI) and dependent (SBP, DBP and MAP) parameters in male, female and total population were calculated and strong association between different parameters was observed (p < 0.001 or p < 0.05). The regression equations (simple and multiple) were worked out. The regression coefficient of different independent parameters with dependent parameters are higher in female except for height and age-weight and age-BMI had higher contribution in female as compared with that of male.

Adolescent↗

Diagnoses of acute lower respiratory tract infections in children in Rawalpindi and Islamabad, Pakistan.

A hospital-based inpatient and outpatient study of 1,492 cases of acute lower respiratory tract infection (ALRI) was conducted from November 1986 to March 1988 in two hospitals in Rawalpindi and Islamabad, Pakistan. Specimens of nasopharyngeal aspirate were processed for viral studies in all cases; blood cultures were performed in 1,331 cases; and urine was obtained for detection of bacterial antigen in 378 cases, but 227 of these samples had bacterial contamination and were discarded. Respiratory syncytial virus was identified in 33% of cases, and Haemophilus influenzae and Streptococcus pneumoniae were identified in 9.6% and 9.9% of cases, respectively. Nonencapsulated H. influenzae accounted for 32% of the Haemophilus isolates, and type b was the only encapsulated H. influenzae strain identified. Of the S. pneumoniae serotypes isolated, 31% are not included in the currently available polyvalent pneumococcal vaccine. No clinical characteristic was demonstrated to be a reliable indicator for bacterial ALRI.

Acute Disease↗