An audit of length of bone marrow trephine biopsies at a tertiary care hospital.

Background: Bone marrow trephine biopsy is a well established minor surgical procedure for the inspection of bone marrow usually done along with bone marrow aspiration. The objective of this study was to evaluate the length of trephine biopsies and the rate of positivity for diagnosis as well as unfit biopsies in various length ranges.

Methods: This retrospective study was conducted at Fauji Foundation Hospital and Foundation University Medical College Rawalpindi from Jan 2007 to Dec 2009.

Frequency of factor V leiden mutation.

Objective: To determine the frequency of factor V leiden mutation.

Design: Observational study.

Place And Duration Of Study: One-year, January 2001 to December 2001 at the Armed Forces Institute of Pathology, Rawalpindi, Pakistan.

Diagnosis of beta-thalassaemia major in previously transfused patients.

Objective: The study was conducted to evaluate the effects of blood transfusion(s) on the haematological picture of b-thalassaemia major.

Design: Retrospective case control study.

Place And Duration Of Study: Department of Haematology, Armed Forces Institute of Pathology, Rawalpindi from January 1999 to December 2000.