Gastric tonometry and direct intraabdominal pressure monitoring in abdominal compartment syndrome☆
Section snippets
Materials and methods
The Indiana University School of Medicine Animal Care and Use Committee approved this experimental protocol, and all animal treatment met National Institutes of Health guidelines for animal use.
Ten conditioned male beagles were obtained that weighed 2.8 to 6.4 kg, and they were fasted overnight. Each animal was premedicated intravenously with atropine (0.2 mg/kg) and then anesthetized with thiopentothal (20 mg/kg). Animals were orotracheally intubated, ventilated, and maintained under general
Results
Findings consistent with an abdominal compartment syndrome were established in each beagle, with no deaths occurring before euthanasia. Of note, however, midway through the experiment in the third beagle, the gastric pressures that had been rising gradually as expected fell to baseline levels. At laparotomy to confirm catheter placement, the nasogastric tube was found to be in the esophagus. Because of catheter malposition and the inconsistency of this single animal's data, the pressures from
Discussion
Congenital abdominal wall defects with associated antenatal intestinal herniation (omphalocele and gastroschisis) are a relatively common problem in the neonatal period. Although the herniated viscera can be reduced successfully and the abdominal wall managed by primary closure, a small abdominal cavity or large defect may create insufficient space for safe reduction of the intestines. Reduction in these instances may require temporary coverage by application of a prosthetic silo and subsequent
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