Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs
IntroductionLaparoscopic surgery is used for canine congenital extrahepatic portosystemic shunts (CEHPSS). However, outcomes of laparoscopic surgery involving simultaneous portal vein angiography and portal pressure measurement to attenuate or completely occlude the shunt vessel in canines remain un...
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Veterinary Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fvets.2024.1291006/full |
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| author | Jin Shigemoto Jin Shigemoto Jin Shigemoto Jin Shigemoto Yasuyuki Kaneko Mitsunobu Kawazu Mitsunobu Kawazu Kiyokazu Naganobu Shidow Torisu Shidow Torisu |
| author_facet | Jin Shigemoto Jin Shigemoto Jin Shigemoto Jin Shigemoto Yasuyuki Kaneko Mitsunobu Kawazu Mitsunobu Kawazu Kiyokazu Naganobu Shidow Torisu Shidow Torisu |
| author_sort | Jin Shigemoto |
| collection | DOAJ |
| description | IntroductionLaparoscopic surgery is used for canine congenital extrahepatic portosystemic shunts (CEHPSS). However, outcomes of laparoscopic surgery involving simultaneous portal vein angiography and portal pressure measurement to attenuate or completely occlude the shunt vessel in canines remain unclear. This study aimed to evaluate outcomes and complications of laparoscopic portosystemic shunt occlusion (LAPSSO) for CEHPSS.MethodsBetween June 2014 and March 2021, data on dogs undergoing cellophane banding (CB) and complete occlusion of laparoscopically treated congenital extrahepatic port shunts were collected from hospital records. Cases in which complete occlusion was laparoscopically performed, or a CB was used for gradual occlusion were included. A total of 36 dogs (14 males; median age 32.5 months [range, 5–99] with median body weight, 4.2 kg [range, 1.5–7.9]) that underwent LAPSSO for CEHPSS were included. All the dogs underwent computed tomographic angiography (CTA), and data on blood and radiological examinations were collected. Shunt vessel morphology was categorized using CTA findings. Portal pressure measurements and portal angiography were performed by accessing mesenteric and splenic veins in 30 and 6 cases, respectively.ResultsThe most common shunt types were spleno-phrenic shunts 16/36 (44.4%), followed by spleno-azygos 9/36 (25.0%), spleno-caval 4/36 (11.1%), right gastric-caval 6/36 (16.6%), and right gastric-caval with caudal loop shunts 1/36 (2.7%). The median portal pressure after complete occlusion was 11.5 mmHg (range, 4–16); portal pressures in the two dogs undergoing CB attenuation were 22 and 24 mmHg. The median operating time in the dogs with right (n = 25) and left (n = 11) recumbent positioning was 55 min (range, 28–120) and 54 min (range, 28–88), respectively. One dog had pneumothorax due to injury to the diaphragm. Another dog developed postoperative hypernatremia and succumbed 5 h post-procedure. Nevertheless, no other dogs exhibited signs of portal hypertension within 72 h. Blood tests and abdominal ultrasounds performed 1–2 months postoperatively revealed no residual shunts.DiscussionLAPSSO, coupled with portal pressure measurement and portal angiography, was shown as safe and effective approach that facilitated successful occlusion of CEHPSS. Further large-scale prospective studies and analyses of perioperative complications are needed. |
| first_indexed | 2024-03-07T20:08:03Z |
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| id | doaj.art-88dbd1812ed742e7bcee309906e3f20f |
| institution | Directory Open Access Journal |
| issn | 2297-1769 |
| language | English |
| last_indexed | 2024-03-07T20:08:03Z |
| publishDate | 2024-02-01 |
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| series | Frontiers in Veterinary Science |
| spelling | doaj.art-88dbd1812ed742e7bcee309906e3f20f2024-02-28T04:23:04ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692024-02-011110.3389/fvets.2024.12910061291006Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogsJin Shigemoto0Jin Shigemoto1Jin Shigemoto2Jin Shigemoto3Yasuyuki Kaneko4Mitsunobu Kawazu5Mitsunobu Kawazu6Kiyokazu Naganobu7Shidow Torisu8Shidow Torisu9Oji Pet Clinic, Tokyo, JapanLaboratory of Companion Animal Surgery, Department of Companion Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, JapanMiyazaki University Veterinary Medical Teaching Hospital Laboratory, Miyazaki, JapanAnimal Minimally Invasive Surgery Team (Amist), Oji Pet Clinic (Animal Minimally Invasive Center), Tokyo, JapanMiyazaki University Veterinary Medical Teaching Hospital Laboratory, Miyazaki, JapanOji Pet Clinic, Tokyo, JapanAnimal Minimally Invasive Surgery Team (Amist), Oji Pet Clinic (Animal Minimally Invasive Center), Tokyo, JapanMiyazaki University Veterinary Medical Teaching Hospital Laboratory, Miyazaki, JapanLaboratory of Companion Animal Surgery, Department of Companion Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, JapanAnimal Minimally Invasive Surgery Team (Amist), Oji Pet Clinic (Animal Minimally Invasive Center), Tokyo, JapanIntroductionLaparoscopic surgery is used for canine congenital extrahepatic portosystemic shunts (CEHPSS). However, outcomes of laparoscopic surgery involving simultaneous portal vein angiography and portal pressure measurement to attenuate or completely occlude the shunt vessel in canines remain unclear. This study aimed to evaluate outcomes and complications of laparoscopic portosystemic shunt occlusion (LAPSSO) for CEHPSS.MethodsBetween June 2014 and March 2021, data on dogs undergoing cellophane banding (CB) and complete occlusion of laparoscopically treated congenital extrahepatic port shunts were collected from hospital records. Cases in which complete occlusion was laparoscopically performed, or a CB was used for gradual occlusion were included. A total of 36 dogs (14 males; median age 32.5 months [range, 5–99] with median body weight, 4.2 kg [range, 1.5–7.9]) that underwent LAPSSO for CEHPSS were included. All the dogs underwent computed tomographic angiography (CTA), and data on blood and radiological examinations were collected. Shunt vessel morphology was categorized using CTA findings. Portal pressure measurements and portal angiography were performed by accessing mesenteric and splenic veins in 30 and 6 cases, respectively.ResultsThe most common shunt types were spleno-phrenic shunts 16/36 (44.4%), followed by spleno-azygos 9/36 (25.0%), spleno-caval 4/36 (11.1%), right gastric-caval 6/36 (16.6%), and right gastric-caval with caudal loop shunts 1/36 (2.7%). The median portal pressure after complete occlusion was 11.5 mmHg (range, 4–16); portal pressures in the two dogs undergoing CB attenuation were 22 and 24 mmHg. The median operating time in the dogs with right (n = 25) and left (n = 11) recumbent positioning was 55 min (range, 28–120) and 54 min (range, 28–88), respectively. One dog had pneumothorax due to injury to the diaphragm. Another dog developed postoperative hypernatremia and succumbed 5 h post-procedure. Nevertheless, no other dogs exhibited signs of portal hypertension within 72 h. Blood tests and abdominal ultrasounds performed 1–2 months postoperatively revealed no residual shunts.DiscussionLAPSSO, coupled with portal pressure measurement and portal angiography, was shown as safe and effective approach that facilitated successful occlusion of CEHPSS. Further large-scale prospective studies and analyses of perioperative complications are needed.https://www.frontiersin.org/articles/10.3389/fvets.2024.1291006/fullcaninecongenitallaparoscopic surgeryportal pressureportal vein angiographyportosystemic shunt |
| spellingShingle | Jin Shigemoto Jin Shigemoto Jin Shigemoto Jin Shigemoto Yasuyuki Kaneko Mitsunobu Kawazu Mitsunobu Kawazu Kiyokazu Naganobu Shidow Torisu Shidow Torisu Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs Frontiers in Veterinary Science canine congenital laparoscopic surgery portal pressure portal vein angiography portosystemic shunt |
| title | Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs |
| title_full | Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs |
| title_fullStr | Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs |
| title_full_unstemmed | Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs |
| title_short | Laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs |
| title_sort | laparoscopic treatment of congenital portosystemic shunts with portal pressure measurement and portal angiography in 36 dogs |
| topic | canine congenital laparoscopic surgery portal pressure portal vein angiography portosystemic shunt |
| url | https://www.frontiersin.org/articles/10.3389/fvets.2024.1291006/full |
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