title: Cardiopulmonary Effects of Laparoscopic Ovariectomy of Variable Duration in Cats.
abstract: OBJECTIVE
  To evaluate the cardiopulmonary effects of low-pressure (6 mmHg) peritoneal insufflation of varying duration in healthy cats during ovariectomy (OVE).
  
  
  METHODS
  Prospective, randomized study.
  
  
  METHODS
  Female cats (n = 24).
  
  
  METHODS
  After anesthesia induction, cats had short (Short LAP; n = 8) or long duration (Long LAP; n = 8) laparoscopic ovariectomy, or Open OVE (Open; n = 8) for comparison. Hemodynamic and pulmonary measurements were recorded after induction of anesthesia (T0), 5 minutes after abdominal insufflation had reached 6 mmHg of pressure (T1), after the 2nd ovary had been resected (T2), after abdominal decompression (T3), and at the end of anesthesia, after abdominal closure (T4). Hemodynamic and pulmonary variables were compared between groups.
  
  
  RESULTS
  Low-pressure abdominal insufflation caused cardiopulmonary changes in cats. At T1 and T2, Long LAP and Short LAP caused a significant change in PvCO2 and RC when compared with Open. During T3, RC was lower only in Long LAP. At T2, there was decrease in SV, but not CO for Long LAP when compared with Open.
  
  
  CONCLUSIONS
  Duration of insufflation was associated with worsening of negative cardiopulmonary effects; however, these effects were reversible and resolved by the end of the procedure.
authors.affiliation: Department of Large Animal, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
authors.forename: Andre C
authors.initials: AC
authors.lastname: Shih
authors.affiliation: Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
authors.forename: J Brad
authors.initials: JB
authors.lastname: Case
authors.affiliation: Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
authors.forename: James G
authors.initials: JG
authors.lastname: Coisman
authors.affiliation: Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
authors.forename: Natalie M
authors.initials: NM
authors.lastname: Isaza
authors.affiliation: Department de Medicina Veterinaria, University of Parana, Parana, Brazil.
authors.forename: Dorli
authors.initials: D
authors.lastname: Amora-Junior
authors.affiliation: Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida.
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Maisenbacher
mesh_terms: D000818:Animals; D001784:Blood Gas Analysis / Q000662:veterinary; D001795:Blood Pressure Determination / Q000662:veterinary; D002245:Carbon Dioxide / Q000008:administration & dosage / Q000494:pharmacology; D002318:Cardiovascular Diseases / Q000209:etiology / Q000662:veterinary*; D002371:Cat Diseases / Q000209:etiology* / Q000503:physiopathology; D002415:Cats; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006439:Hemodynamics / Q000502:physiology; D007327:Insufflation / Q000009:adverse effects / Q000662:veterinary*; D007431:Intraoperative Complications / Q000209:etiology / Q000662:veterinary; D010535:Laparoscopy / Q000662:veterinary*; D008133:Long QT Syndrome / Q000209:etiology / Q000662:veterinary; D008171:Lung Diseases / Q000209:etiology / Q000662:veterinary*; D016343:Monitoring, Intraoperative; D010052:Ovariectomy / Q000662:veterinary*; D010529:Peritoneal Cavity; D011446:Prospective Studies; D012129:Respiratory Function Tests / Q000662:veterinary
chemical_list: D002245:Carbon Dioxide