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Evaluation of Systemic and Splanchnic Visceral Oxygen Variables in Dogs With Surgically Induced Gastric Dilatation‐Volvulus
Author(s) -
Komtebedde J.,
Gullford W.G.,
Haskins S.C.,
Snyder J.R.
Publication year - 1991
Publication title -
journal of veterinary emergency and critical care
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.886
H-Index - 47
eISSN - 1476-4431
pISSN - 1479-3261
DOI - 10.1111/j.1476-4431.1991.tb00088.x
Subject(s) - splanchnic , medicine , resuscitation , volvulus , mean arterial pressure , anesthesia , blood pressure , gastroenterology , blood flow , heart rate
Summary Gastric dilatation‐volvulus (GDV> was surgically induced in ten dogs to evaluate changes in the following variables: surface oxygen partial pressure (PsO 2 ) of splanchnic viscera, systemic O 2 transport (DO 2 ), systemic O 2 consumption (VO 2 ), and O 2 utillization ratio (O 2 UR). These variables have been shown to be closely correlated to tissue viability and patient survival in a variety of ischemic disorders. Gastric dilatation‐volvulus was corrected after 2.5 hours and the dogs were given lactated Ringer's solution (90ml/kg) over 30 minutes (resuscitation). At 6 hours, the dogs were euthanized without recovery from anesthesia. Gastric dilatation‐volvulus resulted in a significant (p < 0.05) decrease of splanchnic visceral PsO 2 and DO 2 and a significant (p < 0.01) increase in O 2 UR. Systemic O 2 consumption did not change significantly during the experiment. Resuscitation resulted in a translent and significant (p < 0.05) increase in PsO 2 to baseline, except for hepatic PsO 2 . Systemic O 2 transport and O 2 UR increased significantly (p < 0.001) compared to baseline. Surface oxygen partial pressure and D0 2 were significantly (P < 0.05) below baseline at the conclusion of the experiment, whereas O 2 UR remained significantly (p < 0.05) above baseline. Surface oxygen partial pressure of all splanchnic viscera, except liver PsO 2 correlated DO 2 throughout the experiment (r: 0.69–0.78). Assessment of DO 2 , VO 2 , and O 2 UR may be used to evaluate efficacy of cardiovascular support during corrective surgery for canine GDV.