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A case of bilateral nonpalpable testes is described. Ultrasonography showed no testis. Laparoscopy revealed no intraabdominal testis, vas or vessels. Human chorionic gonadotrophine test suggested the presence of testicular tissue Computed tomography showed a testis present in each inguinal canal. Inguinal exploration confirmed the finding. This case stresses the importance of careful interpretatio

The management of duodenal atresia (DA) in two Scandinavian pediatric centers is reported. A total of 67 infants with DA were retrospectively analyzed. A high incidence of associated anomalies was present, including Down's syndrome in 40% and cardiac anomalies in 20% of the infants. No immediate postoperative mortality was noted. The operative procedures were duodenoduodenostomy and duodenojejunos

The clinical usefulness of the preoperative determination of C-Reactive protein (CRP) in patients with suspected acute appendicitis was studied in 156 consecutive patients undergoing acute appendicectomy. The CRP values were found to increase with an advancing stage of the appendiceal inflammation found at operation and the length of the preoperative phase of illness. Eight out of 66 patients with

The present author has investigated the frequency with which normal appendices are found at appendectomy in different phases of the menstrual cycle. The study is based on 504 female patients, 15–45 years of age, who were perated on for suspected acute appendicitis during the period from 1976 to 1982. The results are shown in Tables 1 and 2. The frequency of acute appendicitis in the luteal phase o

The role of obstruction in the pathogenesis of acute appendicitis was studied by measuring the pressure in the appendix perioperatively in 24 patients operated on with an appendectomy because of suspected acute appendicitis. The technique used involved inserting a fine needle through the apex into the appendix lumen and measuring the hydrostatic pressure required to inject saline solution. In thre

From the results of the study presented, it can be concluded that, in a group of patients not using contraceptive pills, a significant difference is noted in the frequency of acute appendicitis and the number of appendectomies performed in the different phases of the menstrual cycle. This difference almost disappears in the group of patients using the contraceptive pill. These results suggest that

Six patients who developed acute appendicitis after surgical operations (cholecystectomy, choledocholithotomy, sigmoid resection, osteosynthesis of a hip fracture, abdomino-perineal resection) are described. The symptoms, signs and the results of investigations leading to relaparotomy are summarized. Possible causes of acute appendicitis after operation or trauma (luminal obstruction, bacterial in

The orientation towards grand societal challenges can be seen as a new wave or paradigm for innovation policy. Such policy aims at system-wide transformation and is often referred to as system innovation policy. While insights from transition studies have provided novel and useful rationales for innovation policy targeting system-wide transformation, it remains unclear how to design, implement and

The role of dietary fiber in the cause of acute appendicitis was evaluated. By means of food diaries the average daily fiber consumption was determined in 31 patients with acute appendicitis and in 30 control patients, matched for age and sex. The average daily dietary fiber intake was 17.4 g in the group with appendicitis and 21.0 g in the control group. The difference is statistically significan

A reduction in the number of postoperative bed days for patients who underwent appendectomy led to a study of changes in hospital costs of appendectomies for the years 1955, and 1965, and 1975. No significant changes were found in the total hospital costs. However, the postoperative costs decreased by 36 percent from 1955 to 1975 due to a decrease in the mean duration of hospital stay. During the

In 173 patients (study group), undergoing appendicectomy because of suspected acute appendicitis, normal saline solution, in the amount of 10 ml per 1000 g of patient weight, was injected into the peritoneal cavity before closing the incision. A control group of patients undergoing appendicectomy was selected, matched for age and sex. The mean observation period was five years for both groups. One

When acute appendicitis progresses to perforation, the consequences often lead to prolonged and difficult convalescence or even to death. It was of interest therefore to study a sample of patients with acute appendicitis and to investigate what factors appear to affect perforation in acute appendicitis. A series is presented of 248 patients with acute appendicitis. Seventy-seven of these were foun

The role of obstruction in the pathogenesis of acute appendicitis was studied by measuring the pressure in the appendix peroperatively in 33 patients undergoing appendectomy because of suspected acute appendicitis. The technique involved insertion of a fine needle via the apex into the lumen of the appendix and measurement of the hydrostatic pressure required to inject a saline solution. In all si