Frequency and comparative analysis of hapatitis D in petients seeking treatment for hepatitis B.

Objective: To find the frequency of hepatitis 'D' in patients of hepatitis 'B' seeking treatment and to compare clinical and biochemical features in patients harboring HDV with those who are not.

Design: Cross-sectional study.

Place And Duration Of Study: Medical Unit-IV, Civil Hospital Karachi, Medical Unit-VI and Surgical Unit-VII, Lyari General Hospital, Dow University of Health Sciences, Karachi; from July 2003 to June 2005.

Correlation between clinical endoscopic and histological findings at esophago-gastric junction in patients of gastroesophageal reflux disease.

Objective: To determine the correlation between the clinical, endoscopic and histological findings in patients of GERD.

Design: An observational, cross-sectional study.

Place And Duration Of Study: Lyari General Hospital, Dow University of Health Sciences from November 2003 to October 2004.

Retinoblastoma in Karachi, Pakistan.

The objective was to assess epidemiologic aspects of retinoblastoma development in Karachi, Pakistan. Incident cases, diagnosed clinically or microscopically and registered at Karachi Cancer Registry (KCR) during 1(st)January 1998 to 31(st) December 2002 were reabstracted, rechecked and reanalyzed for this purpose. One hundred and one cases of retinoblastoma were reported to KCR over the 5 years (1998-2002).