1. Correlation between Transient Hypotension and Exclusively Exercise-induced Symptoms of Two-to-One Atrioventricular Block
- Author
-
Koji Maemura, Satoki Fukae, Hiroaki Kawano, Shoichi Nagao, Yoshiyuki Doi, Reiichiro Nakamizo, Yuji Matsumoto, Hirofumi Tasaki, and Naoto Ashizawa
- Subjects
medicine.medical_specialty ,Diastole ,Case Report ,Regurgitation (circulation) ,030204 cardiovascular system & hematology ,Ventricular Function, Left ,normal left ventricular ejection fraction ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,diastolic mitral and tricuspid regurgitation ,Internal Medicine ,Humans ,Medicine ,cardiovascular diseases ,Treadmill ,Atrioventricular Block ,two-to-one atrioventricular block ,Ejection fraction ,Relative bradycardia ,business.industry ,Transient hypotension ,Mitral Valve Insufficiency ,treadmill test ,Stroke Volume ,General Medicine ,Middle Aged ,Exercise capacity ,medicine.disease ,Tricuspid Valve Insufficiency ,exclusively exercise-induced symptom ,Exercise Test ,cardiovascular system ,Cardiology ,transient hypotension ,Female ,030211 gastroenterology & hepatology ,Hypotension ,business ,Atrioventricular block - Abstract
A 62-year-old woman with activity-dependent two-to-one atrioventricular block (2:1AVB) and a normal left ventricular ejection fraction was referred to our department for the evaluation of exclusively exercise-induced marked symptoms. The treadmill test helped establish a clear correlation between 2:1AVB and symptoms. The test results demonstrated that exercise-induced marked symptoms were attributed to abrupt transient hypotension combined with relative bradycardia, probably due to increased diastolic mitral and tricuspid regurgitation because of 2:1AVB during moderate-to-heavy exercise. After pacemaker implantation for 2:1AVB, the symptoms and transient hypotension disappeared, and her exercise capacity improved.
- Published
- 2021