RESUMO
OBJECTIVE: To study the effects that pneumoperitoneum achieved through carbon dioxide insufflation has on diaphragmatic excursion in pigs. METHODS: A total of 14 male Landrace pigs, 30 to 45 days of age and weighing five to seven kilograms each, were used. The sample was randomly and equally divided into two groups: one (n = 7) in which pneumoperitoneum was maintained at 10 mmHg for 60 minutes; and another (n = 7) in which pneumoperitoneum was maintained at 15 mmHg (also for 60 minutes). After anesthetic induction, the animals were intubated. Flow volume was monitored, and the amplitude of diaphragmatic excursion was analyzed using noninvasive ultrasound imaging of the right hemidiaphragm. RESULTS: In both groups, restricted diaphragmatic excursion was observed only during the procedure. There was no statistical difference between the two pressure levels studied. CONCLUSION: The amplitude of diaphragmatic excursion was restricted during abdominal insufflation, independent of the pressure level (within the 10-15 mmHg range), during the study period.
Assuntos
Diafragma/fisiologia , Pneumoperitônio Artificial/efeitos adversos , Animais , Dióxido de Carbono , Diafragma/diagnóstico por imagem , Complacência Pulmonar/fisiologia , Masculino , Movimento , Pneumoperitônio Artificial/métodos , Distribuição Aleatória , Respiração , Suínos , Fatores de Tempo , Ultrassonografia , Cirurgia VídeoassistidaRESUMO
PURPOSE: To study the copaiba oil effect in rats' aminotrasnferases submitted to hepatic ischemic and reperfusion with and without preconditioning. METHODS: 24 male and adults rats (Rattus norvegicus albinus, Wistar) were distributed into six groups: Standard Group (SG); Copaiba Group (CG), Ischemic-reperfusion Group (IRG), Ischemic-reperfusion + Copaiba Group (IRCG), Ischemic Preconditioning Group (IPCG) and Ischemic Preconditioning + Copaiba Group (IPCCG). The animals of CG, IRCG and IPCCG received copaiba oil, 0.63 ml/kg/day by gavage, during 7 days. It was realized total hepatic ischemic by 30 minutes and, in animals subbimited to ischemic preconditioning, it was realized 10 minutes of ischemia, following by 5 minutes of reperfusion and other ischemia by 30 minutes. All animals were subbmited to 24 hours of reperfusion. To realize surgery procedure, animals were anesthezied through ethilic eter breathing. On first post-operating day, blood was collected to dose aminotransferases. RESULTS: It was not observe alterations in AST level in animals which received copaiba oil. There was no statistic difference between IRCG and IRG ALT levels, however, this enzyme was increased in IPCCG when compared with IPCG. CONCLUSION: Copaiba oil did not change AST levels in groups studied. Analysing ALT, this oil did not change its values in animals were realized just hepatic ischemic-reperfusion, however, it had levels increase in IPCCG when compared to IPCG Between IRCG and IPCCG, ALT levels were not statistical different.