The article focuses on diagnosis of a left ventricular lipoma in a patient with T wave changes on ECG. A 75 year old woman, with no cardiovascular history, was incidentally found with negative T waves in inferior leads. Echocardiography suspected a non-obstructive hypertrophic cardiomyopathy ...
Einthoven's nomenclature remains today with theR waveof the ECG occurring when the heart contracts. Since then five other needle deflections have been detected during a single heart beat, giving rise to the P, QRS, T andU waves(Fig. 24.1). TheP waveoccurs when the two upper chambers of th...
Seizures were observed in these cats which included electrocardiographic alterations and uniquely consisted of T wave inversions and equivalent signs such as ST-segment depression or ST-segment elevation Admitting other possible explanations, it was proposed on basis of their similarity to ECG disturbances...
Twitter Google Share on Facebook hertz (redirected fromT-wave) Thesaurus Medical Encyclopedia hertz (hûrts) n.pl.hertzAbbr.Hz A unit of frequency equal to one cycle per second. See Table atmeasurement. [After Heinrich RudolfHertz.]
The incidence of the ECG changes was 71.5% in the group with subarachnoid haemorrhage. The figures for the groups with intracerebral haemorrhage and unclassified cerebrovascular accidents were 57.1 and 41.1%, respectively. Attention has been... KE Kreus,SJ Kemilä,JK Takala - 《Indian Journal of...
The heartbeat is recorded on an electro- cardiogram (ECG) as a characteristic trace determined by changes in the electrical activity of the heart muscle. The T wave is a component of this waveform that is associated with the repolarization phase of the action potentials. It is asymmetrical in...
4. Important in the differential diagnosis of QT prolongation and configuration of the T wave is information about the circumstances in which the ECG changes occur. In our patient this is helpful to exclude many of the causes ...
二.心脏记忆性T波(cardiac memory T—wave) 又称为电张力调整性T波。1982年由 Rosenbaum等最早提出,是指在一段时间的异常心室 激动终止后能引起随后的窦性心律出现时间依赖性 T波改变,即T波向量方向与异常心室激动时的 QRS主波同向。 心电图上表现为...
Each ECG wave represents depolarization or repolarization of a specific portion of the heart. Answer and Explanation: The answer is c. The T wave of the ECG occurs when the ventricles repolarize. Atrial depolarization is represented by ...
Post Exercise T Wave Changes in Patients with Normal and Abnormal Coronary Arteriogram ABSTRACT. The pre- and postexercise ECGs of those with normal (n=15) and those with abnormal (n=66) coronary arteriogram (diameter reduction ≥50% regarded... G Forssell,R Jonasson,C Landou,... - 《...