Determination and validation of volume to be instilled for standardized intra‐abdominal pressure measurement in dogs. (15th July 2014)

• Record Type: Journal Article
• Authors: Way, Leilani Ireland; Monnet, Eric
• Is Part Of: Journal of veterinary emergency and critical care. Volume 24:Number 4(2014:Jul./Aug.)
• Page Start: 403
• Page End: 407
• Publication Date: 2014-07-15
• Subjects: Veterinary emergencies -- Periodicals; Veterinary critical care -- Periodicals; 636.089
• DOI: 10.1111/vec.12197
• Languages: English
• ISSNs: 1479-3261

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <sec id="vec12197-sec-0010" sec-type="section"> <title>Objectives</title> <p>The objectives of this study were to determine (1) most appropriate volume of saline to be infused into the bladder prior to intra‐abdominal pressure (IAP) measurement, (2) to determine if a difference exists between IAP measurements before and after abdominal surgery, and (3) to assess the variability in IAP measurements associated with different saline volumes.</p> </sec> <sec id="vec12197-sec-0020" sec-type="section"> <title>Design</title> <p>Prospective study.</p> </sec> <sec id="vec12197-sec-0030" sec-type="section"> <title>Setting</title> <p>University teaching hospital.</p> </sec> <sec id="vec12197-sec-0040" sec-type="section"> <title>Animals</title> <p>Fifteen female research dogs, 7 undergoing ovariohysterectomy (OHE), and 8 undergoing laparoscopy.</p> </sec> <sec id="vec12197-sec-0050" sec-type="section"> <title>Interventions</title> <p>All dogs had urinary catheters placed and 4 consecutive IAP measurements measured using a different volume of instilled saline (0.25, 0.5, 1, and 2 mL/kg) at baseline. Measurements were repeated intraoperatively in laparoscopy dogs and postoperatively in OHE dogs.</p> </sec> <sec id="vec12197-sec-0060" sec-type="section"> <title>Measurements and main results</title> <p>For both groups of dogs, the volume infused into the bladder significantly affected IAP measurement. An instilled volume of 1 mL/kg of saline produced the best correlation (<italic>R</italic><sup>2</sup> = 0.44, <italic>P</italic> = 0.04) between IAP measurement and laparoscopic insufflator pressure. The mean (±SD) preoperative IAP (cmH<sub>2</sub>O) using 1 mL/kg instilled saline was 7.9 ± 1.4 and 9.6 ±1.9 for laparoscopy and OHE dogs, respectively. There was no difference in IAP before and after surgery in the dogs undergoing an OHE (<italic>P</italic> = 0.58). The volume of saline instilled into the bladder significantly affected the IAP (<italic>P</italic> = 0.0028).</p> </sec> <sec id="vec12197-sec-0070" sec-type="section"> <title>Conclusions</title> <p>One milliliter per kilogram instilled saline is recommended for standardized IAP pressure measurement in dogs. IAP in clinically normal dogs was not affected by abdominal surgery.</p> </sec> </abstract>