ABSTRACT
A retrospective case review study was done at the university gynaecology department to evaluate the various transvaginal/abdominal ultrasound features with regard to discriminatory serum human chronic gonadotropin [HCG] zone. Women who presented with tubal pregnancies at various gestation and treated medically or surgically were included in the study. Serum HCG was taken and transvaginal/abdominal ultrasound performed when the clinical diagnosis was ectopic pregnancy and patients were hemodynamically stable. Prevalence of ectopic tubal pregnancy, symptoms, signs and ultrasound findings with correlation with serum HCG [inpatients who had serum HCG measured] were studied. There were a total of 60 pregnancies in 55-patients [three patients had two ectopic pregnancies and one patient had three ectopic pregnancies]. Serum HCG was measured in 39 of them only [18 patients had acute symptoms and signs and serum HCG was not measured. In one patient pseudosac was mistaken for true gestational sac and in two others the diagnosis of ectopic was made performed in 83% of them, and the rest had only abdominal scan due to non-availability of vaginal scan. An attempt was made to compare the findings in patients with serum HCG above and below the discriminatory zone of 1500iu/L. we conclude that transvaginal/abdominal sonography in patients with serum HCG of < 1500 iu/L is still useful to diagnosis ectopic pregnancy