Pedological study of Omayed toposequence northwestern mediterranean desert of Egypt

Ce travail présente les résultats d'une étude pédologique de vingt et un profils de la toposéquence d'Omayed (Egypte nord-occidentale). Deux des principaux processus pédologiques exprimés dans les sols de cette séquence sont la migration et l'accumulation du calcaire, surtout sur les matériaux anciens et sub-récents, et la salinisation, principalement sur les matériaux les plus récent

Pedological study of Omayed toposequence northwestern mediterranean desert of Egypt

Ce travail présente les résultats d'une étude pédologique de vingt et un profils de la toposéquence d'Omayed (Egypte nord-occidentale). Deux des principaux processus pédologiques exprimés dans les sols de cette séquence sont la migration et l'accumulation du calcaire, surtout sur les matériaux anciens et sub-récents, et la salinisation, principalement sur les matériaux les plus récent

Pediatric liver transplantation using left hepatic segments from living related donors: Surgical experience in 100 recipients at Saint-Luc University Clinics

Living-related liver transplantation was developed in the context of deceased donor organ shortage, which is particularly acute for pediatric recipients. This retrospective study analyzes the surgical technique and complications in the first 100 pediatric liver transplantation using left segmental liver grafts from living donors, performed at Saint-Luc University Clinics between July 1993 and April 2002. Pre-operative evaluation in donors and recipients, analysis of the surgical technique, and postoperative complications were reviewed. After a median follow-up period of 2526 days, no donor mortality was encountered, with a minimal morbidity and no long-term sequelae. At one and five yr post-transplantation, the actuarial patient survival rates were 94% and 92%, the corresponding figures being 92% and 89% for graft survival. The incidences of portal vein and hepatic artery thromboses, and of biliary complications were 14%, 1%, and 27%, respectively. Living-related liver transplantation in children constitutes an efficient therapy for liver failure to face the increased demand for liver grafts. Donor morbidity was kept to acceptable incidence, and surgical technique in the recipient needs to be tailored to minimize postoperative complications