Effect of decreasing the force of right atrial contraction on right ventricular stroke volume.
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بررسی تأثیر نوسانات شدت دستورات کلامی روی قدرت ایزومتریک عضله سه سر بازویی
Loudness of verbal commands affect the Voluntary motor response. It seems the more intensity of verbal command, the more muscle contraction force. The purpose of thisstudy was to investigate the hypothesized effect of verbal command loundness onmagnitude of a resulting voluntary isometric contraction of triceps brachi muscle. Thirthy five female subjectsbetween ages of 18-30 performed f...
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Pulmonary artery pressure can be estimated from right ventricular-right atrial pressure gradient in patients with tricuspid regurgitation. The most common approach is to estimate pulmonary artery systolic pressure from right ventricular pressure (assuming no pulmonic stenosis) determined as the sum of the right ventricular-right atrial pressure gradient and either an assumed or clinically deter...
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MIYAZAWA, K., HONNA, T., NANEDA, T., S=ATO, K., NAKAJIMA, T. and ARAI, T. Dynamic Geometry of the Left Ventricle during Ventricular Pacing: Correla tion with Cardiac Pumping Action. Tohoku J. exp. Med., 1977, 124 (3), 261-266 In five anesthetized open chest dogs, contraction patterns of the left ventricle induced by ventricular pacing were analyzed using cineangiocardiography. Left ventriculogr...
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BACKGROUND It has been proposed that multisite atrial pacing (MSAp) restores atrial electrical activation and prevents atrial fibrillation recurrence; however, single-site Bachmann's bundle pacing (BBp) has also been reported as providing effective atrial resynchronization. Coronary sinus pacing (CSp) leads to reversed impulse propagation within the atria. METHODS AND RESULTS Acute echocardio...
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Background: Asthma is a predisposing factor for the development of atrial fibrillation. Asthma disturbs the electrophysiology in the right and left atrium. The aim of this study was to evaluate atrial electromechanical delay by coupling obtained from tissue Doppler imaging (TDI) in children. Methods: A cross-sectional study was conducted on 50 patients with Bronchial Asthma, compared with 50 hea...
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ورودعنوان ژورنال:
- Circulation research
دوره 21 5 شماره
صفحات -
تاریخ انتشار 1967