Laparoscopic ultrasound of the liver

Objective: despite recent advances in medical imaging, pre-operative evaluation of liver tumors, whether benign or malignant, is often lacking in accuracy and precision. With the development of surgical laparoscopy, the benefits of diagnostic laparoscopy have been combined with those of operative ultrasound. This article aims to describe the technique of laparoscopic ultrasound of the liver, and to define its applications and the role of its association with diagnostic laparoscopy in the localization and assessment for resectability of liver tumors. Methods: after an initial visual inspection with the laparoscope, laparoscopic ultrasound is utilized to further examine the liver. This relies largely on recognition of branches of the portal vein and tributaries of the hepatic veins. During this procedure, the hepatic parenchyma is also examined. Minimal displacement of the transducer, using clockwise and anti-clockwise rotatory movements, allows a full exploration of the liver. Results: the combination of visual with sonographic laparoscopy allows accurate localization of benign and malignant hepatic tumors, as well as ultrasound-guided biopsies of these. Laparoscopic ultrasound can detect small lesions previously unseen by pre-operative imaging techniques. The relationship of tumors to adjacent blood vessels can be defined. Portal vein thrombosis can be diagnosed. Conclusion: curability and liver tumor resectability can be determined and the appropriate surgical treatment thus planned

Routine surgical pathology in general surgery

Background: Although pathological analysis provides the definitive diagnosis for most resection specimens, recent evidence suggests that such analysis may be omitted for certain routine samples. This was a retrospective analysis of the value of routine histopathological examination performed in daily general surgical practice. Methods: All specimens from routine appendicectomies, cholecystectomies, haemorrhoidectomies and inguinal hernia repairs performed between 1993 and 2002 were included. The analysis included a comparison of histological and macroscopic diagnoses, review of preoperative and peroperative findings, and an evaluation of the consequences of routine histopathological assessment on patient management and costs. Results: With the exception of hernia specimens, the rate of submission for routine pathological evaluation was 100 percent. No hernia sac specimen from more than 2000 interventions revealed aberrant histological findings. Of 311 haemorrhoidectomy specimens three showed malignancy, all of which had a suspicious macroscopic appearance. Of 1465 appendices, only one (0(.)1 per cent) had a potentially relevant histological diagnosis that was not suspected macroscopically. Among 1523 cholecystectomy specimens, all adenomas (0(.)6 per cent) and carcinomas (0(.)4 per cent) were suspected macroscopically or developed in association with a known disease. Conclusion: The rarity of incidental histological findings relevant to patient management, especially in the absence of macroscopic abnormalities, suggests that routine histological examination of certain specimens may be omitted. A more elementary role for macroscopic examination of the specimen by the surgeon and the pathologist is proposed

The use of prosthesis in inguinal hernia repair

Aims: To evaluate the use of mesh in the evolution of hernia repair technique during a period of twelve years. Patients--methods: From january 1991, to december 2002, 1306 patients 1136 men, 190 women, with inguinal hernia, with a mean age of 47.4 years old (15-98) have had an elective surgical repair. 1097 (83.9 per cent) were unilateral. 209 (16.1 per cent) were recurrent hernia. Clinical data, operative technique have been prospectively evaluated: Four techniques were used: Shouldice procedure, Stoppa operation and laparoscopic repair (TEP) in 1992 and Lichtenstein technique since 1993. Results: During the study, meshes were used in 65.7 per cent of the patients respectively 33.3 per cent for Lichtenstein, 26.9 per cent for laparoscopic repair and only 5.3 per cent for Stoppa open procedure. During the study, prosthesis rate increased from 9.1 to 85.4 per cent for primary hernia and from 10 to 100 per cent for recurrent hernias. To day, Stoppa procedure is not yet performed. Herniorraphies decrease from 91.9 to 14.6 per cent. Conclusions: "Tension free" techniques represent 85.4 per cent of all procedures at the end of the study, specially Lichtenstein operation (65 per cent) which seems to become the new "Gold Standart" in inguinal hernia repair

Safety and long-term outcome of a new concept for surgical adhesion-reduction strategies (Prevadh): a prospective, multicenter study.

International audienceBACKGROUND/AIMS: No agent has been consistently effective in preventing formation of peritoneal adhesions and postoperative bowel obstruction after abdominal surgery. The aim of this prospective multicenter study was to assess clinical safety and efficiency of a new adhesion-reduction barrier METHODOLOGY: Between September 2000 and April 2001, Prevadh was used in 78 patients. Operative procedures included 25 hepatic resections, 7 cholecystectomies, 32 colonic resections, 7 protectomies, 3 colostomy or recovery of continuity, 1 gynaecologic surgery and 3 others. Eleven patients were operated on by laparoscopy and 67 by laparotomy. RESULTS: The overall incidence of abscesses and wound complications was 2.4% and 9% respectively. After a mean follow-up of 36 months (range: 4-51 months), no patients experienced adverse events related to the adhesion barrier. Surgical reoperative procedures were performed in 10 patients for unrelated causes and no bowel obstruction occurred within the protected area. CONCLUSIONS: This study confirmed the safety of Prevadh adhesion barrier and suggested that this resorbable barrier might provide prevention from adhesion formation on peritoneal injured surfaces. However, a large randomized controlled trial remains necessary to prove the real effectiveness of adhesion barriers on clinical long-term outcome