Cor Triatriatum and Double‐Chambered Right Ventricle

Christopher, Orton E.

doi:10.1002/9781118943427.ch23

Cited by 1 publication

(1 citation statement)

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“…CTD is an embryogenic malformation that occurs when the right sinus venosus valve, which normally regresses during embryogenesis, remains, resulting in double chambers in the right atrium [2]. The persistent embryonic membrane in the right atrium interferes with the venous blood inflow from the caudal vena cava to the right heart, leading to venous congestion and edema [3]. The degree of venous inflow Animals 2023, 13, 2921 2 of 8 obstruction varies depending on the CTD subtype and morphological characteristics of the membrane [4].…”

Section: Introductionmentioning

confidence: 99%

Partial Venous Inflow Occlusion under Mild Hypothermia for Membranectomy in a Dog with Cor Triatriatum Dexter

Moon,

Kim,

Lee

et al. 2023

Animals

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Cor triatriatum dexter (CTD) is an uncommon congenital cardiac anomaly in dogs. This case report describes successful membranectomy for CTD via partial venous inflow occlusion under mild hypothermia in a dog. A 7-month-old intact male mixed-breed dog weighing 20.5 kg presented with a history of abdominal distention, lethargy, and anorexia. Clinical examination, radiography, echocardiography, microbubble testing, and computed tomography revealed a remnant right atrium membrane obscuring the venous blood inflow from the vena cava. Considering the potential risk of re-stenosis following interventional treatment, curative resection involving surgical membranectomy via venous inflow occlusion was performed. By performing partial venous inflow occlusion under mild hypothermia (34.5 °C), sufficient time was obtained to explore the defect and resect the remnant membrane. The dog recovered without any complications, and the clinical signs were relieved. This case illustrates that partial venous inflow occlusion under mild hypothermia is feasible for achieving curative resection of cor triatriatum dexter in dogs.

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Section: Introductionmentioning

confidence: 99%