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Evaluation of the Harmonic Scalpel for Laparoscopic Bilateral Ovariectomy in Standing Horses

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dc.contributor.authorDuesterdieck, Katja Friederikeen
dc.contributor.committeechairPleasant, R. Scotten
dc.contributor.committeememberHoward, Rick Daleen
dc.contributor.committeememberSaunders, Geoffrey K.en
dc.contributor.committeememberLanz, Otto I.en
dc.contributor.departmentVeterinary Medical Sciencesen
dc.date.accessioned2014-03-14T20:37:28Zen
dc.date.adate2003-06-04en
dc.date.available2014-03-14T20:37:28Zen
dc.date.issued2003-04-29en
dc.date.rdate2012-10-01en
dc.date.sdate2003-05-18en
dc.description.abstractObjective - To evaluate a surgical technique for performing laparoscopic bilateral ovariectomy in standing horses. Study Design - Experimental study. Animals or Sample population - 8 mares, age 2-20 years, weight 410-540 kg. Methods - Standing laparoscopic bilateral ovariectomy was performed in 8 mares with normal anatomy of the reproductive tract. The Harmonic Scalpel (an ultrasonically activated instrument) was used to transect the ovarian pedicle and to obtain hemostasis simultaneously. Necropsy was performed on 4 mares 3 days after surgery and 30 days following surgery on the remaining 4 mares. Gross and histopathologic evaluation of the ovarian pedicles was performed to characterize the effects of the Harmonic Scalpel on the transected tissue. Results - The Harmonic Scalpel achieved complete hemostasis of the vasculature of the ovarian pedicles in all mares. Median transection time for the ovarian pedicle was 28 minutes. Postoperative complications included transient fever in one mare, moderate subcutaneous emphysema in another, and incisional seroma formation in a third mare. Post-mortem examination 3 and 30 days postoperatively revealed no signs of generalized peritonitis, postoperative hemorrhage or adhesion formation. Mild to moderate acute inflammation, and scar formation with moderate chronic inflammation at the ovarian pedicle was found 3 and 30 days after surgery, respectively. Median depth of coagulation necrosis 3 days postoperatively was 2.87 mm. Conclusions - The Harmonic Scalpel appears to provide reliable hemostasis of the ovarian pedicle during elective laparoscopic ovariectomy in horses. Clinical Relevance - The Harmonic Scalpel represents a safe alternative to other means of hemostasis during elective laparoscopic ovariectomy in horses.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05182003-154228en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05182003-154228/en
dc.identifier.urihttp://hdl.handle.net/10919/32943en
dc.publisherVirginia Techen
dc.relation.haspartElectronicThesisKFD.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectultrasonically activated scalpelen
dc.subjectovariectomyen
dc.subjectequineen
dc.subjectlaparoscopyen
dc.titleEvaluation of the Harmonic Scalpel for Laparoscopic Bilateral Ovariectomy in Standing Horsesen
dc.typeThesisen
thesis.degree.disciplineVeterinary Medical Sciencesen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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