JACC. Case reports · 2026
Severe Calcific Bicuspid Aortic Valve Stenosis Presenting as Reversible Complete Heart Block.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Gitte Pramod Tulsidas, Kharche Milind, Khedkar Umesh, Rawal Sumit
Аннотация
BACKGROUND: Severe calcific bicuspid aortic valve (BAV) stenosis rarely presents with complete heart block, although extensive subvalvular calcium may compress the atrioventricular conduction axis.
CASE SUMMARY: A 42-year-old man presented with presyncope and dyspnea, and his electrocardiogram showed complete atrioventricular dissociation with a ventricular escape rhythm. Echocardiography and computed tomography aortography demonstrated severe calcific type 0 BAV stenosis, with dense calcium extending into the membranous septum. Surgical aortic valve replacement with a mechanical prosthesis was performed. Postoperatively, the patient showed progressive restoration of intrinsic conduction, and temporary pacing wires were removed by day 6. At 3-month follow-up, he remained asymptomatic in stable sinus rhythm with a well-functioning prosthetic valve.
DISCUSSION: This case highlights severe calcific BAV stenosis as an uncommon but reversible cause of complete heart block.
TAKE-HOME MESSAGE: Early recognition of this mechanism is essential to prevent unnecessary permanent pacemaker implantation and underscores the value of multimodality imaging in evaluating conduction abnormalities.
CASE SUMMARY: A 42-year-old man presented with presyncope and dyspnea, and his electrocardiogram showed complete atrioventricular dissociation with a ventricular escape rhythm. Echocardiography and computed tomography aortography demonstrated severe calcific type 0 BAV stenosis, with dense calcium extending into the membranous septum. Surgical aortic valve replacement with a mechanical prosthesis was performed. Postoperatively, the patient showed progressive restoration of intrinsic conduction, and temporary pacing wires were removed by day 6. At 3-month follow-up, he remained asymptomatic in stable sinus rhythm with a well-functioning prosthetic valve.
DISCUSSION: This case highlights severe calcific BAV stenosis as an uncommon but reversible cause of complete heart block.
TAKE-HOME MESSAGE: Early recognition of this mechanism is essential to prevent unnecessary permanent pacemaker implantation and underscores the value of multimodality imaging in evaluating conduction abnormalities.