Electrocardiography, a graphic method of investigation of the heart, had such a rapid development that periodic evaluations of its practical usefulness are necessary. Overemphasis by enthusiastic workers may stress the value of this method beyond its actual possibilities; this may cause deceptions or diagnostic errors, or simply prevent the use of other, more appropriate, methods of investigati...

BIOLOGICAL CHEMISTRY. By Alexander Gero. New York, The Blakiston Company, 1952. xvi + 340 pp. $5.00. This book is proposed to serve as a nexus between undergraduate organic chemistry and graduate or medical school biochemistry. An indication of its scope can be gained by a listing of the table of contents. There are two chapters on physical chemistry, single chapters on the electronic theory of...

Many cardiac and systemic illnesses can affect the left side of the heart. After a careful history and examination, electrocardiography and chest radiography are first line investigations. Electrocardiography can provide supportive evidence for conditions such as aortic stenosis, hypertension, and mitral stenosis. Recognition of the associated electrocardiographic abnormalities is important as ...

SUMMARY Continuous electrocardiography was performed during eighty operations on the posterior fossa of the skull and fifty-seven other neurosurgical operations, all in the sitting position. There was little difference between the two groups in the incidence of arrhythmia before operation and during the surgical approach; more serious irregularities were almost entirely confined to periods when...

The Einthoven hypothesis implies that differences in the conductivity of body tissues are not sufficiently great to invalidate the concept that the body is a homogeneous volume conductor. Some investigators believe the lungs are sufficiently poor conductors to make questionable the concept that the body can be regarded as a homogeneous volume conductor. Intrabronchial electrocardiography is pre...

Knowledge of a patient's cardiac age, or "heart age", could prove useful to both patients and physicians for better encouraging lifestyle changes potentially beneficial for cardiovascular health. This may be particularly true for patients who exhibit symptoms but who test negative for cardiac pathology. We developed a statistical model, using a Bayesian approach, that predicts an individual's h...

RATIONALE Vasospastic angina is caused by sudden occlusive vasoconstriction of a segment of an epicardial artery, with transient ST-segment elevation on electrocardiography. Brugada Syndrome is an inherited arrhythmogenic cardiac disorder with a diagnostic electrocardiography characterized by coved-type ST-segment elevation in right precordial leads (V1-V3). Those two diseases usually have no c...

Objective: The study was conducted to evaluate the effectiveness of basic electrocardiography education designed in accordance with simulation-based cooperative learning method. Methods: This is a single group, quasi-experimental study. A two-day electrocardiography(ECG) program for final yearnursing students (n=125). Data were gathered pre-posttest, Students’ Satisfaction and Self-Confidence S...