{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T13:11:47Z","timestamp":1741353107792,"version":"3.38.0"},"reference-count":29,"publisher":"American Veterinary Medical Association (AVMA)","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ajvr"],"published-print":{"date-parts":[[2003,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Objective<\/jats:bold>\u2014To evaluate the use of ultrasonography to\ndetect morphologic changes in the pylorus during\npyloroplasty performed laparoscopically or via conventional\nabdominal surgery in dogs.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Animals<\/jats:bold>\u201410 healthy mixed-breed dogs.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Procedure<\/jats:bold>\u2014Laparoscopic ultrasonography of the\npylorus was performed in 5 dogs during laparoscopic\npyloroplasty (LP), and ultrasonography of the pylorus\nwas performed in 5 dogs during pyloroplasty via conventional\nabdominal surgery (CAP group).\nAppearance and dimensions of the pyloric sphincter\nwere evaluated by use of a 7.5-MHz flexible laparoscopic\nlinear-transducer probe.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Results<\/jats:bold>\u2014Mean \u00b1 SD duration of the ultrasonographic\nprocedure was 11 \u00b1 3.04 minutes (range, 6 to 18 minutes).\nIn the CAP group, cross-sectional views of the\npylorus revealed significant differences between the\noverall transverse external diameter, overall craniocaudal\nexternal diameter, and transverse diameter of the\npyloric lumen. After surgery, the pyloric area was significantly\nincreased. Longitudinal views of the pylorus\nrevealed that width of the pyloric ring was significantly\nless after surgery. Transverse views of the pylorus\nfor the LP group revealed a significant increase in the\ntransverse diameter and craniocaudal diameter of the\npyloric lumen after LP. The pyloric area was also significantly\nincreased after surgery. Longitudinal views of\nthe pylorus revealed that width of the pyloric ring was\nsignificantly less after surgery. Transverse diameter of\nthe pyloric lumen was significantly increased after LP.<\/jats:p>\n\t\t\t\t<jats:p>\n\t\t\t\t\t<jats:bold>Conclusions and Clinical Relevance<\/jats:bold>\u2014Analysis of\nresults of this study suggests that ultrasonography is\nuseful for detecting relevant morphologic changes in\nthe pyloric sphincter after pyloroplasty. 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