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Query: UMLS:C0033377 (prolapse)
 11,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A single neonatal surgical unit treated 42 cases of gastroschisis over a 12-year period (1981-1993). The surgical management of each case was individualised, but every attempt was made to perform a primary repair when possible, based on the premise that this strategy gave the best outcome. The eviscerated intestine was evaluated with the patient under general anaesthesia. Serosal peel was not removed and intestinal atresias were not repaired. Gangrenous intestine was resected. The contents of the bowel were emptied proximally via a large naso-gastric tube and distally via the anus with warm saline lavage. The anterior abdominal wall was stretched and then reduction of the prolapse attempted. Following maximal enlargement of the peritoneal cavity, it was left to the operator to decide whether primary repair was possible and, indeed, permissible in each instance. Staged repairs necessitated the use of silastic pouches. Respiratory and intestinal insufficiency were managed by intermittent positive-pressure ventilation and total parenteral nutrition (TPN). Over one-half of the cases (24 of 42) were under 2.5 kg at birth. Intra-uterine growth retardation was unusual. Ten babies were delivered for obstetrical indications by Caesarean section: 50% were pre-term and in 4 pre-natal diagnosis of a ventral abdominal wall anomaly had been made. The transmural defects were all sited at the umbilicus and were to the right of a consolidated cord in 41 instances. Midgut necrosis due to torsion was encountered in 1 case; 3 further cases with intestinal atresia occurred. Primary closure was obtained in 30 (71%) of the cases reviewed. A prosthetic pouch was used in 12 patients for on everage 10 days in 10 uncomplicated cases. The average length of time in days of tertiary care given to 25 uncomplicated cases treated by primary fascial closure was: ventilatory support 4; intensive care treatment 8; and nutritional source TPN 20. There were 5 deaths (12%): 1 was unpreventable due to prenatal intestinal infarction; 2 were due to abdominal compartment syndrome with renal failure, and, intestinal ischaemia complicating primary and planned staged repairs; 1 caused by intestinal infarction due to torsion of bowel in a pouch; and 1 due to invasive infection. The role played by the strategy taken by the surgeon in the management of gastroschisis is crucial to the outcome. The creation of a compartment-like syndrome produced uncorrectable complications in this series of cases in both primary and staged abdominal wall closures. Minor degrees of this complication proved to be reversible in some patients, which was the reason for the wait-and-see attitude adopted in the management of this problem, often with fatal outcome. Where intra-peritoneal pressure monitoring is not used, the operating surgeon relies on unscientific observations for decision-making at the operating table. The time from birth to operation in 25 of the reviewed cases was on average 5 1/2 h. Of this group, 20 were outborn babies. This is unsatisfactory, but as shown by this review, even in the absence of prenatal management, which should ensure prompt repair, satisfactory results are still possible.
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PMID:The pivotal role of the surgeon in the results achieved in gastroschisis. 2405 22

Congenital abdominal wall defects occur when normal embryonic development is interrupted and most commonly results in gastroschisis or omphalocele. Other entities, such as ruptured omphalocele, vanishing gastroschisis, and patent omphalomesenteric ducts with prolapse, have also been described and can create a confusing picture. This case of a newborn with a midline abdominal defect and a mass that was intestine-like and arose from the bowel cannot be classified, and no similar reports were found. This suggests a previously undescribed abdominal wall defect with an aberrant colonic appendage.
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PMID:Not gastroschisis or omphalocele or anything in between: a novel congenital abdominal wall defect. 2827 Nov 55

Recent advances have now made it possible to speak of gastroschisis narrowly in morphogenetic terms invoking the Rittler-Beaudoin (R-B) model. This proceeds from the appreciation of gastroschisis as a congenital intestinal herniation (without cover or liver) within the primordial umbilical ring, mostly to the right side of a normally formed umbilical cord. Presently, it is unresolved whether this visceral prolapse represents failure of ring closure before return of the physiological hernia into the abdomen or rupture of the delicate amniotic/peritoneal membrane at the ring's edge to the right of the cord. Animal observations and experiments will be required to address this question effectively. If gastroschisis is, in fact, a primary malformation with the primordial umbilical ring as the developmental field involved, then homology implies potential gastroschisis in all amniotes with corresponding nourishment from yolk sac (aka omphalomesenteric) vessels going into the embryo and excretory products out via the ancient umbilical connection. It also implies homology of corresponding morphogenetic signal transduction cascades. We review the history of gastroschisis, its presumed pathogenesis, and the developmental biology of the amniotic umbilical ring from this perspective. Therefore, based on the animal and human evidence to date, we propose that gastroschisis is a primary midline malformation that involves the umbilical canal from amniotic to peritoneal space and its primordial umbilical ring, either through nonclosure or rupture of the membrane covering the area, mostly to the right, between the cord and the edge of the ring.
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PMID:An evolutionary and developmental biology approach to gastroschisis. 3092 93