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Biomedical subjects

Najmul Hasan

Publications and source records attributed to Najmul Hasan.

3 recordsLinked to original sources

Hepatitis A--frequency in children with non-specific abdominal symptoms.

OBJECTIVE: To study the frequency of subclinical hepatitis 'A' in children having non-specific abdominal symptoms. DESIGN: A descriptive study. PLACE AND DURATION OF STUDY: This study was conducted at Combined Military Hospital (CMH), Peshawar from June to December 2000. SUBJECTS AND METHODS: Three hundred and sixty children of either gender, < 12 years of age, presenting with vague abdominal symptoms and no jaundice were evaluated for hepatitis. Eighty eight (24.4%) children meeting the inclusion criteria of elevated serum alanine aminotransferase (ALT), twice the upper limits of normal (90 IU/L), and normal serum bilirubin were labelled as subclinical hepatitis. RESULTS: A total of 360 children were evaluated for vague abdominal symptoms and 96 (26.7%) of them had hepatitis on laboratory profile. Eight patients developed early jaundice and were excluded from the study. Out of 88 (24.4%) cases of subclinical hepatitis, 82 (93.2%) had hepatitis-A, 03 (3.4%) had hepatitis-B, while no causative agent was found in 03 (3.4%) children. The common presenting symptoms were abdominal pain/discomfort, loss of appetite, nausea, vomiting, malaise, fatigue and fever. Hepatomegaly and splenomegaly was documented in 56% and 43% cases respectively. A history of exposure to a patient with hepatitis was present in 14/88 (15.9%) cases whereas no child was vaccinated against HAV. Serum ALT level declined to normal limits within 4 weeks for 77/88 (87.5%) cases and within 6 weeks for 84/88 (95.4%). All cases recovered spontaneously with out any complication. CONCLUSION: Hepatitis-A was rampant in children presenting with vague abdominal symptoms in our series.

Abdominal Pain↗

Abdominal epilepsy.

Abdominal epilepsy (AE) is a rather uncommon clinical entity in children that might create diagnostic confusion especially when it lacks the typical manifestations of an epileptic seizure. We report the case of a young boy having apparently unexplained episodes of paroxysmal abdominal symptoms with no other suggestion of an underlying epileptic disorder. The case also explains how the clinical presentation can be misleading unless a high index of suspicion is maintained to reach the ultimate diagnosis.

Abdominal Pain↗

Correlation of quantitative risk results for high hazard processes.

A quantitative risk analysis was conducted to evaluate the design of the VX neutralization subsystem and related support facilities of the U.S. Army Newport Chemical Agent Disposal Facility. Three major incidents including agent release, personnel injury, and system loss were studied using fault tree analysis methodology. Each incident was assigned a risk assessment code based on the severity level and probability of occurrence of the incident. Safety mitigations or design changes were recommended to bring the "undesired" risk level (typical agent release events) to be "acceptable with controls" or "acceptable."

Chemical Warfare Agents↗