RESUMO
Background:Bleeding per vaginum in the first trimester is a common obstetric situation ranging from an insignificant episode to life threatening emergency. The major causes are abortion, ectopic, and molar pregnancy. Ultrasonography is playing an increasing role in the management of such patients. The aim of this study was to determine the role of first trimester bleeding on obstetrical ultrasound.Material And Methods:This was a retrospective observational study done at urban health care Hospital Ahemdabad, a tertiary care teaching hospital. All obstetric cases with a history of bleeding per vaginum in the first trimester of pregnancy between July2019 and December2019 were included. A complete general physical and pelvic examination was done to arrive at a clinical diagnosis. Patients were then subjected to ultrasound examination. Clinical diagnosis and ultrasound diagnosis were correlated.Result:150 of all 2000 obstetric cases had the first trimester bleeding (incidence of 7.5%). Commonest causes were abortion (78.66%), ectopic (6%), and molar pregnancy (2%). Of 150 cases, 106 cases were correctly identified by ultrasonography. 44 cases proved by sonography were misdiagnosed by clinical examination with a disparity of 52.38%. In this study, 56% pregnancies were clinically diagnosed as viable, but only 34% pregnancies were viable.Conclusion:When the first trimester of pregnancy is complicated by vaginalbleeding, the history and clinical findings are often misleading and if relied upon can only lead to a delay in diagnosis and management.This study reinforces that USG is important to establish a definitive diagnosis, differential diagnosis and subsequent management.