Goni Moreno progressive preoperative pneumoperitoneum for giant hernias: a monocentric retrospective study of 162 patients.

INTRODUCTION: Goni Moreno's procedure was described 60 years ago as a solution for giant hernias repair through the creation of a progressive preoperative pneumoperitoneum (PPP). The main objective of the present study is to assess its effectiveness in terms of primary fascial closures. The secondary objectives of this study are to explore the morbidity and mortality associated with Moreno's procedure using 40 years of data from a large cohort of patients. MATERIALS AND METHODS: This is a retrospective study of all patients who underwent PPP procedures between October 1974 and January 2019 at the digestive surgery unit at Grenoble University Hospital, France. Data were reviewed to assess the preoperative demographic characteristics of the patients, procedure, postoperative course, complication following Clavien-Dindo classification and 30-day outcomes. RESULTS: 162 procedures were attempted. The mean age of patients was 57.8 years. 83 patients had a history of chronic respiratory disease (51.2%). The mean BMI was 33.2 kg/m2, and 52 patients were obese (32.1%) Half of the patients were classified as ASA score III. Success rate of fascial closures was 95.7%. The global rate of complication during the insufflation period and after surgical repair of the hernia was 51.8% (n = 84). Among these, only 16.7% (n = 27) were major according to the Clavien-Dindo classification. The global mortality rate was 3.1%. CONCLUSION: Goni Moreno PPP is an effective procedure that allows a high rate of fascial closure. The population of patients requiring such procedures presents a high-risk profile for complications regarding demographics and associated diseases.

Chronic effect of pneumoperitoneum on renal histology.

BACKGROUND AND OBJECTIVE: Transient intraoperative oliguria is a constant phenomenon during laparoscopic procedures. Laboratory studies have demonstrated that this effect is secondary to a decrease in renal blood flow caused by the pneumoperitoneum. With the advent of laparoscopic harvest of the kidney for renal transplantation, a concern is that increased intra-abdominal pressure may compound the effect of acute cold and warm renal ischemia during transplantation. Acute transient renal ischemia can produce chronic sclerosing histopathologic changes in native kidneys which are similar to those seen in chronic allograft rejection. The effect of positive-pressure abdominal pneumoperitoneum (15 mm Hg) on native kidneys was examined using a rodent model. The effects on renal function and histologic features were also studied. MATERIALS AND METHODS: Twenty-four Harlan Wistar-Furth rats were divided into four groups: controls, 1-hour pneumoperitoneum-91-day survival, 5-hour pneumoperitoneum-91-day survival, and 5-hour pneumoperitoneum-7-day survival. Control animals underwent placement of the Veress needle and anesthesia but no induction of pneumoperitoneum. At the time of sacrifice, blood was sampled for serum creatinine measurement. Both kidneys were harvested for frozen and permanent section and stained using hematoxylin and eosin. Specimens were graded for inflammatory and ischemic/sclerotic changes in the interstitium, tubules, glomeruli, and vasculature by a renal pathologist using a histologic score (0-3). RESULTS: In all groups, at a sacrifice interval of either 1 week or 3 months, there were no statistical differences in the histologic score, serum creatinine concentration, or renal weight. CONCLUSIONS: In a rodent model, no signs of chronic ischemic histologic changes were detected for a period of 3 months after up to 5 hours of pneumoperitoneum. As well, there was no change in the serum creatinine concentration.