| 单词 | extrasystole |
| 例句 | Its greatest value is in states of abnormal conductivity, such as various grades of heart block, extrasystoles, whether originating in auricles or in either ventricle, abnormalities of rhythm, as flutter and fibrillation. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z This disease is not frequent, while extrasystoles of a functional character are very frequent. Disturbances of the Heart If there is auricular extrasystole it can not usually be recognized except by graphic methods. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The ventricular extrasystole on the contrary is commonly seen and readily recognized. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Note that diastolic pause in which extrasystole occurs is practically equal to two normal diastolic pauses. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Such extrasystoles are produced in the ventricle at some point other than the regular path of conduction of impulses. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Digitalis would seem almost invariably contraindicated, although it is of value in extrasystoles without heartblock, or in conditions which are not Stokes-Adams disease; but if this disease was considered present, digitalis would probably do harm. Disturbances of the Heart Patients who have occasional extrasystoles will say that all of a sudden the heart turns upside down in the chest. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Provided there is no evidence of gross myocardial lesion, the extrasystole itself is of no great significance. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z While many cases showing pathologic causes for extrasystoles have more or less marked arteriosclerosis, there are other states in which no arteriosclerosis is found where the extrasystole is present. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The extrasystole may have its origin in either the auricle or the ventricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z In that caused by extrasystole, the treatment has just been suggested. Disturbances of the Heart When irregular there is apt to be extrasystole of ventricle or occasional blocking of impulse going to ventricle. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z It has also been shown that extrasystoles, meaning irregular heart action, may be caused by impulses originating at the apex, at the base or at some point in the right ventricle. Disturbances of the Heart |
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