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1998, Number 1

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Vet Mex 1998; 29 (1)

Changes in arterial blood gases from Beagles during carbon dioxide pneumoperitoneum

Portilla de BE, Castañón MJ, Ramos MA, Cárdenas OA, García MDZ, Rodríguez RS, Olivares GN

Language: English/Spanish
References: 22
Page: 53-56
PDF size: 333.99 Kb.


ABSTRACT

Laparoscopy is a common alternative for the solution of surgical pathology in humans. Its use in veterinary medicine is increasing. Although blood-gas alterations in animals under carbon dioxide pneumoperitoneum have been described, this work was designed to evaluate specific alterations present in dogs less than 10 kg of weight. Four Beagles weighing 6 to 9 kg were anesthetised and pressure-ventilated. Pneumoperitoneum was achieved with CO2 at 8 mmHg during 75 min. An increase in PaCO2 was observed (P ‹ 0.05) from normal values up to 51.6 ± 1.28 mmHg, with a simultaneous fall in pH to 7.29 ± 0.02 (P ‹ 0.05). Hyperventilation during the last 50 min returned these values to normal. PaO2 remained within normal range, and reached 320.33 ± 57 with hyperventilation. Blood gas alterations in these Beagles during CO2 pneumoperitoneum (8 mmHg) were similar to those observed in larger animals. These alterations can be controlled with ventilatory frequency modifications.


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