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Laparoscopic Ovariectomy Using the Endo-GIA Stapling Device and Endo-Catch Pouches and Evaluation of Analgesic Efficacy of Epidural Morphine Sulfate in 10 Mares

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To evaluate use of ENDO-GIA staples and ENDO-Catch pouches for ovariectomy in mares and to evaluate the efficacy of epidural morphine analgesia. Study Design

Randomized clinical trial. Animals

Mares (n=10) with normal ovaries. Methods

An Endo-GIA II stapler (United States Surgical Corp., Norwalk, CT) was used to amputate the ovaries bilaterally, in standing mares, and Endo-Catch II pouches (United States Surgical Corp.) were used for retrieval. Epidural morphine was used in 5 mares, and procedure duration, volume of lidocaine required to desensitize the ovarian pedicle, and sedation were compared with horses not administered epidural morphine. Results

Use of the Endo-GIA II stapling device was an easy and an efficient method of ovariectomy, which was facilitated by use of epidural morphine. For the epidural group, the mean (±SD) surgical time was 69.2±10.2 minutes compared with 124.4±21.2 minutes for mares not administered morphine. Less systemic sedation was required for mares administered epidural morphine. Conclusions

Minimal ovarian manipulation was required to apply the stapler, hemorrhage was slight, and none of the mares had complications. Epidural morphine provided effective analgesia, improving patient comfort, and reduced the sedation needed to perform ovariectomy. Clinical Relevance

Endo-GIA II staples are an efficient method for ovariectomy in normal mares. Epidural morphine should be considered to facilitate ovariectomy because less sedation and local anesthetic administration is required.
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Keywords: Endo-GIA II; Endo-catch II pouches; epidural morphine; horse; laparoscopic surgery; laparoscopy; mare; ovariectomy; surgical staples

Document Type: Research Article

Affiliations: From the Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis CA

Publication date: November 1, 2005

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