Dilatable pulmonary artery banding for ventricular septal defect: surgical technique and case report of three cats

Pulmonary artery banding (PAB) is a viable but underreported palliative option for hemodynamically significant ventricular septal defect in small animals. A significant challenge associated with PAB is judging the degree of band tightening, which can be further complicated when animals are immature...

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Bibliographic Details
Published in:Journal of veterinary cardiology 2019-10, Vol.25, p.32-40
Main Authors: Sutherland, B.J., Pierce, K.V., Gagnon, A.L., Scansen, B.A., Orton, E.C.
Format: Article
Language:English
Subjects:
Animals
Cat Diseases - surgery
Cats
Congenital heart defect
Feline
Heart Septal Defects, Ventricular - surgery
Heart Septal Defects, Ventricular - veterinary
Hemodynamics
Male
Pulmonary Artery - surgery
Pulmonary artery band
Surgery
Surgical Equipment
Thoracotomy - veterinary
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Summary:Pulmonary artery banding (PAB) is a viable but underreported palliative option for hemodynamically significant ventricular septal defect in small animals. A significant challenge associated with PAB is judging the degree of band tightening, which can be further complicated when animals are immature and still growing at the time of PAB. If a pulmonary artery band is overtightened or becomes progressively too tight after surgery, the result can be reversal of shunt flow with potentially devastating consequences. Placement of a band that could be percutaneously dilated using a balloon catheter affords a minimally invasive option for partially or completely relieving the band should it become too tight after PAB. This report describes a surgical technique for placement of a dilatable pulmonary artery band, reviews guidelines for tightening the band, and reports the outcome of three cats undergoing the procedure. All three cats showed evidence of reduced hemodynamic load after PAB for a period of up to three years after PAB.
ISSN:1760-2734
1875-0834
DOI:10.1016/j.jvc.2019.08.001