European journal of cardiology最新文献_第6页

Response time and heart rate in coronary patients under mild mental stress. 轻度精神压力下冠心病患者的反应时间和心率。

European journal of cardiology Pub Date : 1980-01-01

D A Sideris, J N Nanas, S Thomakos, S D Moulopoulos

{"title":"Response time and heart rate in coronary patients under mild mental stress.","authors":"D A Sideris, J N Nanas, S Thomakos, S D Moulopoulos","doi":"","DOIUrl":"","url":null,"abstract":"A mild mental stress was applied on 39 normal people and on 33 patients with coronary artery disease. The test consisted in their selecting the proper switch out of 2, in order to switch off a lamp out of 3 as soon as possible after its ignition. The 3 lamps were lit by the examiner in a stereotyped random sequence. No consequences were implied against the subjects in case of failure and this was clearly explained to them. The response time of the people was recorded together with their electrocardiogram in a one-channel recorder using a suitable circuitry. The study showed that the response time became progressively shorter during the test only in the coronary group, although the mean value did not differ significantly from that in the normal group. The R-R interval was shortened in both groups but in the coronary group significantly more so than in the normal group. Pretreatment with diazepam reversed both responses of the coronary group. Pretreatment with propranolol mitigated the tachycardiac effect of the test in the coronary group, reversed its effect in the normal group and shortened the response time significantly in the normal group. The objective time measurements by the device used might suggest that in patients with coronary artery disease both the specific (response time) and the nonspecific (R-R interval) behaviour in response to a mental stress differ from that in normal people. This behaviour may be modified by medicaments like diazepam and propranolol.","PeriodicalId":72971,"journal":{"name":"European journal of cardiology","volume":"11 6","pages":"413-24"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18460528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amiodarone-induced ventricular fibrillation. 胺碘酮引起的心室颤动。

European journal of cardiology Pub Date : 1980-01-01

J M McComb, K R Logan, M M Khan, J S Geddes, A A Adgey

引用次数: 0

Echocardiographic demonstration of porcine mitral valve vegetation and dehiscence. 猪二尖瓣生长和开裂的超声心动图显示。

European journal of cardiology Pub Date : 1980-01-01

B Strasberg, C Kanakis, F Eckner, K Rosen

引用次数: 0

Diagnostic capacity of sinus node recovery time after inhibition of autonomous neural tone. 自主神经张力抑制后窦结恢复时间的诊断能力。

European journal of cardiology Pub Date : 1980-01-01

H Vallin, O Edhag, E Sowton

{"title":"Diagnostic capacity of sinus node recovery time after inhibition of autonomous neural tone.","authors":"H Vallin, O Edhag, E Sowton","doi":"","DOIUrl":"","url":null,"abstract":"Symptomatic arrhythmias often occur intermittently in patients with sinus node dysfunction. A diagnostic test with ability to reveal latent sinus disease has therefore been much sought for. Determinations of sinus node recovery time (SNRT) and corrected sinus node recovery time (CSNRT) have been attempted but limitations in their diagnostic power are well recognized. To eliminate a possible masking effect of autonomous neural tone, propranolol 0.1 mg/kg and atropine 0.02 mg/kg was administered to 30 patients with established symptomatic sinus bradydysrhythmias (SSBD) and to a control group of 18 age-matched healthy volunteers. In addition the same procedure was applied to 9 patients with symptoms suggesting SSBD in whom, however, this cause was later excluded. The upper normal limit of CSNRT defined by the control group was 545 msec before and 505 msec after drugs. In the SSBD group, CSNRT was falsely negative in 8 of the 30 patients. Repeated testing after drug inhibition reduced this number to 2 patients. Thus, the sensitivity increased from 73% to 93%. CSNRT determinations were normal in the non-SSBD patients, specificity remaining at 100%. Thus, the discriminative power of electrophysiologic testing for sinus node disease was found to be high when CSNRT determinations were performed both before and after drug inhibition of autonomous neural tone.","PeriodicalId":72971,"journal":{"name":"European journal of cardiology","volume":"12 2","pages":"81-93"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17318025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Directly measured tension-time index as a correlate of myocardial oxygen consumption. 直接测量张力时间指数与心肌耗氧量的相关性。

European journal of cardiology Pub Date : 1980-01-01

B Lewartowski, J Michałowski, G Sedek, E Kryńska, E Wasilewska-Dziubińska

{"title":"Directly measured tension-time index as a correlate of myocardial oxygen consumption.","authors":"B Lewartowski, J Michałowski, G Sedek, E Kryńska, E Wasilewska-Dziubińska","doi":"","DOIUrl":"","url":null,"abstract":"Left ventricular systolic pressure (LVSP) and stress in the outer layers of the left ventricular wall were directly recorded in 10 anaesthetised, open-chested dogs. Left ventricular oxygen consumption (VO2) was calculated from the difference in oxygen content in the arterial and in the coronary sinus blood and from the left ventricular coronary flow (LVCF). LVCF was measured in the shunt between the carotid artery and left coronary artery (2 experiments) or in the shunt between the coronary sinus and jugular vein. Tension-time index was calculated either as the product of the mean LVSP and time (TTI(P)), or as the product of mean systolic stress and time (TTI(sigma)). Both TTIs were changed within the broad range by means of exsanguination and blood infusion. Contractility was changed by means of Inderal or noradrenaline infusion. In all experimental conditions VO2/100 g/stroke correlated linearly (P less than 0.01) with TTI(sigma), with correlation coefficient r greater than 0.8. When TTI(P) was used, correlation coefficient r was less than 0.6 and no correlation was found in one series of experiments with noradrenaline infusion. It is concluded that TTI calculated from the directly measured wall stress is a very good correlate of the VO2, which is not the case when the 'classical' TTI is used.","PeriodicalId":72971,"journal":{"name":"European journal of cardiology","volume":"11 1","pages":"61-70"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18375196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An easy and reliable estimation of acute myocardial infarct size from serum CK-MB measurements. 一个简单和可靠的估计急性心肌梗死大小从血清CK-MB测量。

European journal of cardiology Pub Date : 1980-01-01

P Grande, J Naestoft, C Christiansen

引用次数: 0

Oxygen uptake and cardiac output at rest and during exercise after surgery for coarctation of the aorta. 主动脉缩窄手术后休息和运动时的摄氧量和心输出量。

European journal of cardiology Pub Date : 1980-01-01

E Hanson, B O Eriksson

引用次数: 0

The role of reduced left ventricular enddiastolic volume in the apparently high prevalence of mitral valve prolapse in atrial septal defect. 房间隔缺损患者二尖瓣脱垂明显高发，左室舒张内容积降低的作用。

European journal of cardiology Pub Date : 1980-01-01

J Angel, J Soler-Soler, H Garcia del Castillo, I Anivarro, J Batlle-Diaz

引用次数: 0

Myocardial lactic acid balance after left ventriculography. 左心室造影后心肌乳酸平衡。

European journal of cardiology Pub Date : 1980-01-01

O Visioli, S Bongrani, F Cucchini, M di Donato, R Ferrari

引用次数: 0

Familial cardiomyopathy--a 15-year follow-up. 家族性心肌病，15年随访。

European journal of cardiology Pub Date : 1980-01-01

M Rosenqvist, G Biörck, U de Faire, U Freyschuss, K Lindvall, B Magnusson

{"title":"Familial cardiomyopathy--a 15-year follow-up.","authors":"M Rosenqvist, G Biörck, U de Faire, U Freyschuss, K Lindvall, B Magnusson","doi":"","DOIUrl":"","url":null,"abstract":"In 1961--1962 five families including 53 members with a familial form of cardiomyopathy (CMP) were examined. Fifteen years later a reinvestigation of the previously examined families was carried out using community registers; mortality as well as new family members were registered. Another 50 family members were thereby added. Three out of 6 young subjects who were diagnosed as having definite (2) or suspected (1) CMP at the initial examination died during the follow-up period. Four of the five families, totalling 39/41 members, were given a thorough noninvasive clinical examination including ECG, phonocardiogram exercise test, measurement of systolic time intervals and carotid arterial pulse curves, and echocardiography (Echo). A high number (17/39) of suspected or definite pathologic echocardiographic changes consistent with CMP was observed on reinvestigation. Eleven of these 17 were asymptomatic. Except for Echo, the non-invasive methods used in this study did not contribute to the diagnosis of CMP, but the non-Echo methods confirmed the Echo findings in those patients with symptoms of cardiac disease. The four reexamined families revealed a very heterogenous pattern of CMP, with both symmetric and asymmetric hypertrophy (ratio symmetric/asymmetric = 15 : 2). It may be questioned whether asymptomatic subjects with borderline changes, indicative of symmetric hypertrophy, will develop definite symmetric CMP or whether their symptoms constitute an early stage of asymmetric CMP. Echocardiographic findings may well fit with the theory of a dominant mode of inheritance.","PeriodicalId":72971,"journal":{"name":"European journal of cardiology","volume":"12 2","pages":"107-20"},"PeriodicalIF":0.0,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18447393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0