Comparison between the Valsalva maneuver and a newly-devised expiratory valve on splitting of the second heart sound.
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چکیده
منابع مشابه
Comparison of the effectiveness of tourniquet and Valsalva maneuver in relieving pain caused by propofol injection to induce general anesthesia: A double-blind randomized clinical trial
Introduction: Propofol is one of the most common anesthetic drugs. Painful injection with a reported prevalence of 28 to 90% in various studies is one of the problems of taking Propofol. The present study investigated the effect of performing the Valsalva maneuver and tourniquet twisting on pain intensity and hemodynamic changes. Materials and Methods: This clinical trial was performed on 105 p...
متن کاملA phonocardiographic study of right bundle branch block, with special reference to the second heart sound.
The second heart sounds in 29 cases with right bundle branch block, mainly surgically induced, were studied. Three general types of the second sound were classified. Eleven cases revealed wide splitting of the second sound (0.05 sec. or more), and 14 cases showed narrow splitting less than 0.05 sec.), while 4 cases showed a single 2nd heart sound throughout the respiratory cycle. Ten cases reve...
متن کاملComparison of three methods of Valsalva maneuver, lidocaine, and Valsalva maneuvers along with administration of lidocaine to reduce the pain associated with administration of Propofol
Background: Propofol is commonly used in anesthesia practice because of its rapid recovery time, but pain upon injection is one of the unfavorable complications of this drug, which can cause both physical and mental discomfort for patients. Therefore, it is important to lower the pain on injection of Propofol in patients undergoing anesthesia. As a result, the current study was conducted in ord...
متن کاملThe splitting of the second heart sound in normal subjects and in patients with congenital heart disease.
demonstrated that the second heart sound results from closure of the semilunar valves.1 In 1865, on the basis of clinical observations, Potain indicated that the second heart sound may be split into two components and that the degree of this splitting may vary with respiration.2 More recently the studies of Leatham and collabora-tors3 4 have focused considerable attention on the splitting of th...
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Expiratory muscle strength training (EMST) is a rehabilitative program that has been tested for outcomes related to respiratory muscle strength, cough, swallow, and voice function in healthy young adult, elderly individuals, and in patients with progressive neurodegenerative disease. Because EMST has been used in patient care, the associated cardiovascular responses during EMST are of importanc...
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ورودعنوان ژورنال:
- Diseases of the chest
دوره 51 6 شماره
صفحات -
تاریخ انتشار 1967