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Cardiovascular effects of rapid infusion of crystalloid in the hypovolaemic cat
Author(s) -
Jr HARRY W. BOOTHE,
CLARK DONALD R.,
MERTON DAWN A.
Publication year - 1985
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.1985.tb02227.x
Subject(s) - medicine , cats , anesthesia , blood volume , hemodynamics , fluid replacement , fissipedia , surgery
The effects of rapidly infused lactated Ringer's solution were studied in ten cats made hypovolaemic by acute bleeding and subsequently given, intravenously, crystalloid in an amount approximately equal to 1 blood volume (five cats) or 2 blood volumes (five cats). Fluid administration was begun approximately 30 min after the cats were bled and completed in 1 hour. A control group of three cats was instrumented but not bled or treated. Cardiovascular haemodynamics were measured before bleeding, 30 min after bleeding, at the half‐way point of fluid administration, and immediately after total fluid administration. While the catheterization and vessel ligation had minimal effects, both blood removal and fluid administration had marked effects on haemodynamics. Cats which received fluids equal to 2 blood volumes were severely affected by hypervolaemia. Central venous pressures in these cats were significantly higher during and after fluid administration. Seventy per cent of the experimental cats survived long term; however, several surviving cats had complicated or prolonged recoveries in which clinical signs consistent with acute pulmonary oedema were seen during the treatment and recovery period.