| 1. |
- Arnbjörnsson, Einar
(författare)
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A neuromuscular basis for the development of right inguinal hernia after appendectomy
- 1982
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Ingår i: The American Journal of Surgery. - : Elsevier BV. - 0002-9610. ; 143:3, s. 367-369
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Tidskriftsartikel (refereegranskat)abstract
- Abdominal muscular contractions may have a protective influence against the development of indirect inguinal hernia. A portion of the transversus abdominus muscles acts on the internal inguinal rings and produces a closure mechanism during voluntary abdominal muscular activity. It follows, therefore, that injury or inactivation of this mechanism may be an etiologic factor in the development of indirect inguinal hernia. One cause of injury to this mechanism is denervation and regional muscle paralysis occurring during a surgical procedure. Electromyographic findings support the hypothesis that paralysis of inferior fibers of the transversus abdominus muscle occurred after appendectomy, and may have been important in the development of an inguinal hernia.
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| 2. |
- Arnbjörnsson, Einar
(författare)
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Acute Appendicitis and Dietary Fiber
- 1983
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Ingår i: Archives of Surgery. - : American Medical Association (AMA). - 0004-0010. ; 118:7, s. 868-870
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Tidskriftsartikel (refereegranskat)abstract
- 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 significant. Adjustment for the total energy intake in each instance did not change this conclusion. The results support the hypothesis that diet, in particular a lack of fiber, may be an important factor in the pathogenesis of acute appendicitis.
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| 3. |
- Arnbjörnsson, Einar
(författare)
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Acute appendicitis as a sign of a colorectal carcinoma
- 1982
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Ingår i: Journal of Surgical Oncology. - : Wiley. - 0022-4790 .- 1096-9098. ; 20:1, s. 17-20
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Tidskriftsartikel (refereegranskat)abstract
- The relationship of acute appendicitis occurring previous to cancer in colon and rectum was studied in the consecutive records of 561 patients, of 40 years of age and older, operated upon with an appendectomy because of acute appendicitis. Sixteen (2.9%) of these patients were readmitted within three years because of a carcinoma in colon or rectum. The incidence of carcinoma in the colon and rectum in the population, of the same age, is only 0.1%, according to the Swedish Cancer Registry (1). This difference is statistically significant. Where acute appendicitis and colon carcinoma co‐exist, the danger is that the carcinoma may be missed. Therfore, any patient over the age of 40 presenting with acute appendicitis should be carefully checked for carcinoma in the colon.
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| 4. |
- Arnbjörnsson, Einar, et al.
(författare)
-
Changes in hospital costs for an appendectomy : 1955, 1965, and 1975
- 1983
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Ingår i: The American Journal of Surgery. - : Elsevier BV. - 0002-9610. ; 146:3, s. 342-345
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Tidskriftsartikel (refereegranskat)abstract
- 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 same period of time, the perioperative costs increased by 90 percent due to increased length of operation time correlated with an increasing proportion of inexperienced operating surgeons. At present, there seem to be few possible ways to increase the cost efficiency of treating appendicitis.
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| 5. |
- Arnbjörnsson, Einar
(författare)
-
Development of right inguinal hernia after appendectomy
- 1982
-
Ingår i: The American Journal of Surgery. - : Elsevier BV. - 0002-9610. ; 143:1, s. 174-175
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Tidskriftsartikel (refereegranskat)abstract
- The incidence of right inguinal hernia is significantly greater in patients who have undergone appendectomy than in the general population. The most likely cause of such hernias is injury to the segmental nerve supply to the inguinal musculature. The choice of incision at appendectomy may therefore be important, and the surgeon should avoid injury to the nerve branches and important structures in the inguinal region, especially below the horizontal line extending from the anterosuperior iliac spine to the rectus muscle.
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| 6. |
- Arnbjörnsson, Einar, et al.
(författare)
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Role of obstruction in the pathogenesis of acute appendicitis
- 1984
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Ingår i: The American Journal of Surgery. - : Elsevier BV. - 1879-1883 .- 0002-9610. ; 147:3, s. 390-392
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Tidskriftsartikel (refereegranskat)abstract
- 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 three patients with a gangrenous appendix found at operation, and in two patients with a phlegmonous appendix, there were signs of obstruction of the appendix lumen as revealed by increased pressure within it. In 14 patients with a phlegmonous appendix found at operation, no signs of obstruction were found. These experimental data suggest that obstruction is not an important causative agent of acute appendicitis, but might develop as a result of the inflammatory process.
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| 7. |
- Arnbjörnsson, Einar, et al.
(författare)
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Ultrasonic Diagnosis of Testicular Torsion
- 1981
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Ingår i: European Journal of Pediatric Surgery. - : Georg Thieme Verlag KG. - 0939-7248 .- 1439-359X. ; 34:11, s. 269-272
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Tidskriftsartikel (refereegranskat)abstract
- An ultrasonic technique to avoid errors in the diagnoses of acute testicular torsion is described. The presence or absence of intratesticular arterial pulsation was recorded and analysed. The technique may reduce diagnostic failures and the number of scrotal explorations of nontorquered testis.
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