Acute effects of DDD pacing in patients with pulmonary infundibular stenosis

We evaluated acute effects of DDD pacing (right atrium sensed and left ventricle paced) in 3 patients with pulmonary infundibular stenosis and found a decrease in dynamic right ventricular outflow gradient in all of them. It appears that acute temporary DDD pacing may decrease the dynamic obstructio...

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Bibliographic Details
Published in:The American journal of cardiology 1999-07, Vol.84 (1), p.117-118
Main Authors: Angelkov, Lazar, Trajić, Snežana, Popović, Zoran, Jovović, Ljiljana, Bojić, Milovan, Popović, Aleksandar D
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Blood pressure
Cardiac Pacing, Artificial - methods
Cardiovascular disease
Diseases of the cardiovascular system
Drug therapy
Echocardiography, Doppler
Female
Humans
Male
Medical sciences
Pulmonary Subvalvular Stenosis - diagnostic imaging
Pulmonary Subvalvular Stenosis - physiopathology
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
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Summary:We evaluated acute effects of DDD pacing (right atrium sensed and left ventricle paced) in 3 patients with pulmonary infundibular stenosis and found a decrease in dynamic right ventricular outflow gradient in all of them. It appears that acute temporary DDD pacing may decrease the dynamic obstruction of the right ventricular outflow tract in these patients, probably because of asynchronous contraction of the right ventricle induced by pacing from the left ventricular apex, with contraction of infundibular portion being delayed.
ISSN:0002-9149
1879-1913
DOI:10.1016/S0002-9149(99)00208-8