Anatomical variations of the hepatic artery: study of 932 cases in liver transplantation.

The aim of this study was to identify and to classify anatomical hepatic artery (HA) variations concerning 932 HA dissections in liver transplantation (LT). Normal HA distribution was found in 68.1%. Variations of HA were detected in 31.9% and were divided into three groups describing 48 common hepatic artery (CHA) anomalies, 236 left or right hepatic artery (RHA) anomalies and 13 rare variations including one case of RHA stemmed from the inferior mesenteric artery and one case of normal CHA passed behind the portal vein. The authors propose a modified classification for HA anomalies which are based on the origin of the hepatic arterial supply (either by the CHA as the only source of the arterial vascularization or by additional or replaced right and left arteries) in order to improve management of liver disease thus as in LT.

[Excision of low rectal carcinomas with sphincter preservation. Multimodal strategy using neoadjuvant radiotherapy and "delayed" coloanal anastomosis without defunctioning stoma]. / Conservation sphinctérienne après exerèse des cancers du bas rectum. Stratégie multimodale combinant une radiothérapie pré-opératoire et une anastomose colo-anale "differée" sans stomie de protection.

Over the past 20 years there have been many advances in the management of rectal cancer. The medico-surgical school in Lyon, France, has a long tradition in managing this malignancy. The progression of ideas and practices requires a better knowledge of the patterns of tumor spread and local recurrence. Technical advances have greatly helped to facilitate sphincter preservation. Advances in radiotherapy have led to its routine use in the preoperative period. This approach has now emerged as the best therapeutic sequence. Our experience concerns 46 patients with low rectal carcinoma treated with this strategy. There were no post-operative deaths and no leakage. One patient (2%) had a pelvic abscess. Median follow-up was 50 months (1-151). At five years, the local recurrence rate was 8.5% and the actuarial survival rate was 72%, with a local control rate of 91%. Functional outcome, evaluated with a scoring system, was good in 60% of cases at one year and 78% at 5 years. Quality of life, evaluated with the American Society of Colon and Rectal Surgeons scale (A.S.C.R.S.), was 107 +/- 21 (range 33-140). The absence of defunctioning stoma (initial or late), good sexual and urinary well-being, and psychologic assessment are essential factors, requiring rigorous evaluation before the operation and specialized management after the operation. The proposed strategy based on this safe procedure and "French-type" neoadjuvant radiotherapy, permits sphincter preservation in patients with T2 and T3 tumors located near the dentate line, with good late oncological outcome. It is often amenable to the laparoscopic approach.