- Home
- About
- Animal Owners
- Membership
- Services
- Contact us
< Back
Objectives:
The prevalence of anatomical-based subtypes of feline congenital extrahepatic portosystemic shunts (EHPSS) has not been completely elucidated. The goal of this study was to use CT angiography to create an anatomical-based nomenclature system for feline congenital EHPSS. Additionally, subjective portal perfusion scores were generated to determine if intrinsic portal vein development was associated with different shunt conformations or patient age at the time of CT.
Methods:
The SVSTS and VIRIES list-serves were used to recruit cases. Data collected included patient DOB, gender, breed, weight, CT date, and reported diagnosis. Shunts were classified based upon (1) the shunt portal vessel of origin, (2) the shunt systemic vessel of insertion, and (3) any substantial portal vessels contributing to the shunt. Additionally, hepatic portal perfusion was subjectively scored between 1 (poor/none) and 5 (good/normal) based upon caliber of the intrahepatic PVs.
Results:
264 CT scans were submitted from 29 institutions. Due to exclusion criteria, 33 (13%) were removed leaving 231 CT scans to be included. Twenty-five different EHPSS anatomies were identified with five classifications accounting for 78% of all shunts (LGP [53%], LGC-Post [11%], LCG [7%], LGC-Pre [4%], and PC [4%]). Shunt origin involved the left gastric vein in 75% of the described classifications. Significant differences were identified among the five most common shunt types with respect to age at time of CT scan (p=0.002), breed (p<0.001), and subjective portal perfusion score (p<0.001).
Conclusions:
This refined anatomical classification system for feline EHPSS may enable improved understanding, treatment comparisons, and outcome prediction for cats with these anomalies.
34th Annual Scientific Meeting proceedings
Stream:
|
Session: STS and Oncology Short Communications
Date/Time: 05-07-2024 (16:45 - 17:00) | Location: Auditorium 4
Date/Time: 05-07-2024 (16:45 - 17:00) | Location: Auditorium 4
CT vascular anatomy of feline congenital extrahepatic portosystemic shunts: An SVSTS and VIRIES multi-institutional retrospective study in 228 cats.
Weisse C*1, Asano K2, Ishigaki K2, Lipscomb V*3, Zwingenberger AL4, Carroll KA5, Vilaplana Grosso FR6, Stock E7, Buote N*8, Aly A8, Murgia D*9, Arai S*10, Zur Linden A11, Gordon J12, Monassero M*13, Schwartz T14, Wallace ML*15, Graham J16, Hardie R*17, Chang Y18, Robbins M*19, Bismuth C*20, Karnia J21, Sterman A*22, Saunders A23, Montinaro V*24, Guarnera I25, McLauchlan G26, Cerna P27, Maurin M*28, Asai J*29, An A30
1Animal Medical Center, NY, USA, 2Nihon University, Fujisawa, Japan, 3Royal Veterinary College, Hatfield Herts, United Kingdom, 4UC Davis, Davis, USA, 5North Carolina State University, Raleigh, USA, 6University of Florida, Gainesville, USA, 7University of Ghent, Merelbeke, Belgium, 8Cornell University, Ithaca, USA, 9Dick White Referrals, Station Farm, United Kingdom, 10University of Minnesota, St. Paul, USA, 11University of Guelph, Guelph, Canada, 12Oregon State University, Corvallis, USA, 13Ecole Nationale Veterinaire d'Alfort, Alfort, France, 14University of Edinburgh, Roslin, United Kingdom, 15University of Georgia, Athens, USA, 16Tufts University, North Grafton, USA, 17University of Wisconsin, Madison, USA, 18Mercy Animal Hospital, Kaohsiung City, Taiwan, 19Veterinary Specialty Center, Buffalo Grove, USA, 20Veterinary Hospital Fregis, Arcueil, France, 21University of Missouri, Columbia, USA, 22Purdue University, West Lafayette, USA, 23Texas A&M University, College Station, USA, 24Clinica Veterinaria Malpensa-Anicura, Samarte, Italy, 25Ospedale Veterinario Portoni Rossi, Bologna, Italy, 26Fitzpatrick Referrals, Surrey, United Kingdom, 27Colorado State University, Fort Collins, USA, 28University College Dublin, Dublin, Ireland, 29University of Tennessee, Knoxville, USA, 30Weill Cornell University, NY, USA.
Objectives:
The prevalence of anatomical-based subtypes of feline congenital extrahepatic portosystemic shunts (EHPSS) has not been completely elucidated. The goal of this study was to use CT angiography to create an anatomical-based nomenclature system for feline congenital EHPSS. Additionally, subjective portal perfusion scores were generated to determine if intrinsic portal vein development was associated with different shunt conformations or patient age at the time of CT.
Methods:
The SVSTS and VIRIES list-serves were used to recruit cases. Data collected included patient DOB, gender, breed, weight, CT date, and reported diagnosis. Shunts were classified based upon (1) the shunt portal vessel of origin, (2) the shunt systemic vessel of insertion, and (3) any substantial portal vessels contributing to the shunt. Additionally, hepatic portal perfusion was subjectively scored between 1 (poor/none) and 5 (good/normal) based upon caliber of the intrahepatic PVs.
Results:
264 CT scans were submitted from 29 institutions. Due to exclusion criteria, 33 (13%) were removed leaving 231 CT scans to be included. Twenty-five different EHPSS anatomies were identified with five classifications accounting for 78% of all shunts (LGP [53%], LGC-Post [11%], LCG [7%], LGC-Pre [4%], and PC [4%]). Shunt origin involved the left gastric vein in 75% of the described classifications. Significant differences were identified among the five most common shunt types with respect to age at time of CT scan (p=0.002), breed (p<0.001), and subjective portal perfusion score (p<0.001).
Conclusions:
This refined anatomical classification system for feline EHPSS may enable improved understanding, treatment comparisons, and outcome prediction for cats with these anomalies.
This website uses cookies to improve your experience and for traffic analysis. If you continue, we’ll assume that you agree to the use of cookies as stated in our Cookie Policy.