Tariq Nawaz, Maryam Barkat, Muhammad Atif, Qasim Ali.
Vascular Surprises in Calot`s Triangle during Laproscopic Choleystectomy.
J Rawal Med Coll Jan ;21(4):354-7.

Background: To identify the vascular anomalies,variations of Calot`s triangle during laparoscopic cholecystectomy Methods: In this prospective observational study one thousand patients with a diagnosis of cholithiasis were included. Exclusion criteria were patients younger than 12 years and older than 80 year. Calot`s triangle dissection was done meticulously.Cystic artery and hepatic artery anomalies and variations were observed and analyzed on SPSS 21. Results: The age varied from 12 to 80 years. On the basis of distributional variation the cystic artery was single in 90% cases, branched in 7% cases and absent in 3% cases. On positional variations the cystic artery was superomedial to the cystic duct in 85% cases, anterior in 7% cases, and posterior in 3% cases and low lying in 5% of the cases. On the basis of length variation results showed that 80% cases had a normal cystic artery .A short cystic artery was found in 5% cases and a long cystic artery was present in 5%. Other arterial variations are of hepatic artery i.eMoynihan?s Hump (3%) and right hepatic artery present in Calots triangle in 5% Conclusions: For the safety of laparoscopic cholecystectomy one should be well aware of the anatomical variations of the cystic and hepatic artery.

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