Intracoelomic pressure and coelomic perfusion pressure in healthy tegus (Salvator merianae)

Abstract

ABSTRACT: The evaluation of intracoelomic pressure is very important, as many diseases can culminate with an increase in intracoelomic pressure and a consequent reduction in perfusion of the abdominal organs. The aim of this study was to measure the intracoelomic pressure and coelomic perfusion pressure in tegus (Salvator merianae). Twelve healthy tegus without sexual distinctions, weighing 1.64±0.39kg, were enrolled in this study. Intracoelomic pressure was measured using two methods: a handmade water column system and a pressure transducer connected to a multiparameter monitor. Coelomic perfusion pressure was determined by subtracting the intracoelomic pressure from the mean arterial pressure, which was measured using an oscillometric method. Intracoelomic pressure was 0mmHg (range, 0 - 0.5) according to the water column method and 2mmHg (range, 0 - 2.0) according to the pressure transducer. Coelomic perfusion pressure was 76mmHg (range, 62 - 105) according to the water column system and 82mmHg (range, 57 - 93) according to the pressure transducer. No significant difference was observed between the values obtained by the different measurement methods. Intracoelomic pressure value reported in this study might be useful in tegus, but the coelomic perfusion pressure should be used with caution, considering the blood pressure method that was used.