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Mampaey G, Bové T, De Somer F, Devriendt N, Bouchez S, Bosmans T, Stammeleer L, Panzer J, Hellemans A, Smets P. Surgical correction of an infundibular pulmonic stenosis and ventricular septal defect in a Shetland Sheepdog. J Vet Cardiol 2023; 49:29-37. [PMID: 37573623 DOI: 10.1016/j.jvc.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 07/08/2023] [Accepted: 07/20/2023] [Indexed: 08/15/2023]
Abstract
A four-month-old male Shetland Sheepdog presented with exercise intolerance. Physical examination revealed an IV/VI left cranial systolic heart murmur. Echocardiography showed a severe infundibular pulmonic stenosis and a concomitant restrictive ventricular septal defect. As clinical signs of congestive right-sided heart failure worsened and were refractory to medical treatment, surgical correction was advised. Via sternotomy, with cardiopulmonary bypass and cardioplegic cardiac arrest, ventricular septal defect closure and resection of the stenotic infundibular band were performed through right ventriculotomy, followed by patch enlargement. Postoperative recovery was uneventful and echocardiography showed complete resolution of the stenosis and successful closure of the ventricular septal defect. Follow-up echocardiography revealed restenosis after seven weeks and recurrence of right-sided heart failure three months postoperatively. Stenting of the restenosis was attempted via a hybrid procedure with sternotomy and direct transventricular approach. The dog developed fatal ventricular fibrillation during stent deployment. This is the first dog in which surgical right ventricular patch enlargement under cardiopulmonary bypass is reported for the treatment of a primary infundibular pulmonic stenosis.
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Affiliation(s)
- G Mampaey
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - T Bové
- Department of Cardiac Surgery, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - F De Somer
- Department of Cardiac Surgery, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - N Devriendt
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - S Bouchez
- Department of Cardiac Surgery, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - T Bosmans
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - L Stammeleer
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - J Panzer
- Department of Pediatrics, Pediatric Cardiology, Ghent University Hospital, Corneel Heymanslaan 10, 9000 Ghent, Belgium
| | - A Hellemans
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - P Smets
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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Schrope D. Acquired infundibular pulmonary stenosis associated with a congenital membranous ventricular septal defect (Gasul phenomenon) in a dog and discussion regarding causes of infundibular stenosis. J Vet Cardiol 2023; 47:64-69. [PMID: 37247530 DOI: 10.1016/j.jvc.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/23/2023] [Accepted: 05/01/2023] [Indexed: 05/31/2023]
Abstract
An aclinical Havanese dog was diagnosed with a membranous restrictive ventricular septal defect. The patient was represented later in their natural history due to the development of syncope. At that time the patient was diagnosed with acquired pulmonary infundibular stenosis. Balloon dilation of the stenosis was performed successfully twice over the patient's lifetime. The patient died suddenly approximately 14 months after the second balloon dilation. A discussion regarding primary infundibular pulmonary stenosis versus causes of acquired infundibular pulmonary stenosis including anomalous muscle bundles (double chamber right ventricle), tetralogy of Fallot, and infundibular stenosis is presented.
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Affiliation(s)
- D Schrope
- Oradell Animal Hospital, Paramus, NJ, USA.
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Cutting balloon and high-pressure balloon dilation for palliative treatment of congenital double-chambered right ventricle and primary infundibular stenosis in a Golden retriever dog. J Vet Cardiol 2017; 19:538-546. [DOI: 10.1016/j.jvc.2017.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 09/29/2017] [Accepted: 10/11/2017] [Indexed: 11/17/2022]
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