IntroductionWorldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery.MethodsAn expert group of international surgeons (the HerniaSurge Group) and one anesthesiologist pain expert was formed. The group consisted of members from all continents with specific experience in hernia-related research. Care was taken to include surgeons who perform different types of repair and had preferably performed research on groin hernia surgery. During the Group’s first meeting, evidence-based medicine (EBM) training occurred and 166 key questions (KQ) were formulated. EBM rules were followed in complete literature searches (including a complete search by The Dutch Cochrane database) to January 1, 2015 and to July 1, 2015 for level 1 publications. The articles were scored by teams of two or three according to Oxford, SIGN and Grade methodologies. During five 2-day meetings, results were discussed with the working group members leading to 136 statements and 88 recommendations. Recommendations were graded as “strong” (recommendations) or “weak” (suggestions) and by consensus in some cases upgraded. In the Results and summary section below, the term “should” refers to a recommendation. The AGREE II instrument was used to validate the guidelines. An external review was performed by three international experts. They recommended the guidelines with high scores.Results and summaryThe risk factors for inguinal hernia (IH) include: family history, previous contra-lateral hernia, male gender, age, abnormal collagen metabolism, prostatectomy, and low body mass index. Peri-operative risk factors for recurrence include poor surgical techniques, low surgical volumes, surgical inexperience and local anesthesia. These should be considered when treating IH patients. IH diagnosis can be confirmed by physical examination alone in the vast majority of patients with appropriate signs and symptoms. Rarely, ultrasound is necessary. Less commonly still, a dynamic MRI or CT scan or herniography may be needed. The EHS classification system is suggested to stratify IH patients for tailored treatment, research and audit. Symptomatic groin hernias should be treated surgically. Asymptomatic or minimally symptomatic male IH patients may be managed with “watchful waiting” since their risk of hernia-related emergencies is low. The majority of these individuals will eventually require surgery; therefore, surgical risks and the watchful waiting strategy should be discussed with patients. Surgical treatment s...

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In 128 patients with severe chronic pancreatitis and inflammatory enlargement of the head of the pancreas, a duodenum-preserving resection of the pancreatic head was performed. Median post-operative hospitalization was 15.5 days, and the frequency of reoperation was 5.5%. One patient died during the early post-operative phase, and hospital mortality amounted to 0.8%. After a median follow-up period of 3.6 years (range of 7 months to 16 years), six of 127 patients died (late mortality of 4.7%). Seventy-seven per cent of the patients were completely free of abdominal pain, 67% returned to their former occupations. During the late follow-up period, the glucose metabolism was unchanged in 80.7% of the patients, in 13.7% it deteriorated, and in 5.5% it improved permanently; 80% of the patients experienced a marked increase in weight averaging 8.7 kg. Compared with the Whipple procedure, the duodenum-preserving resection of the head of the pancreas spares the patient with chronic pancreatitis a gastrectomy, duodenectomy, and resection of the extrahepatic biliary ducts. In terms of a subtotal resection, the limited operative intervention at the head of the pancreas and the preservation of the duodenum explain the low early and late postoperative morbidity and mortality.

Endoscopic repairs do have advantages interms of local complications and pain-associated parameters. For more detailed evaluation further well-structured trials with improved standardization of hernia type, operative technique, and surgeons' experience are necessary.