Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Rex N. MacAlpin"'
Autor:
Rex N. MacAlpin
Publikováno v:
Indian Pacing and Electrophysiology Journal, Vol 3, Iss 3, Pp 157-176 (2003)
Anatomic studies have shown that the left bundle branch divides into three fascicles in most humans. Changes in the 12 lead ECG (electrocardiogram) due to conduction abnormalities of the left anterior fascicle and left posterior fascicle are now part
Externí odkaz:
https://doaj.org/article/91b8bc824b6c4dc69b94c58d95c5b3e8
Autor:
Rex N. MacAlpin
Publikováno v:
International Journal of Cardiology. 181:389-398
The pathogenesis, clinical features, diagnosis, and treatment of spasm of epicardial coronary arteries are reviewed briefly, especially with regard to some issues that remain controversial. For diagnosis, emphasis is placed on the need for objective
Autor:
Rex N, MacAlpin
Publikováno v:
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc. 22(5)
BACKGROUND: A negative sinus P wave in lead V(2) (NPV (2)) of the electrocardiogram (ECG) is rare when leads are positioned correctly. This study was undertaken to clarify the significance of an unusually high incidence of this anomaly found in ECGs
Autor:
Rex N. MacAlpin
Publikováno v:
Journal of Cardiovascular Medicine. 11:801-809
Notching of R and S waves in the QRS complex can result from myocardial infarction. As defined in recent studies, the 'fragmented QRS' (fQRS) showed high sensitivity and specificity for the presence of myocardial scar as imaged by myocardial perfusio
Autor:
Rex N. MacAlpin, Albert A. Kattus
Publikováno v:
Circulation. 33(2)
Twelve patients with angina pectoris manifested an ability to adapt to exercise during treadmill stress testing with electrocardiographic monitoring. Three patterns of adaptation were seen. Nine subjects had the ability to continue walking after the
Autor:
Rex N. MacAlpin
Publikováno v:
Annals of Noninvasive Electrocardiology. 11:203-210
BACKGROUND: Abnormal Q waves (AQW) in the electrocardiogram are commonly ascribed to underlying myocardial infarction (MI). As an imperfectly specific sign of MI, the usefulness of AQW in identifying MI depends on its incidence in the population stud
Autor:
Rex N. MacAlpin
Publikováno v:
Annals of Noninvasive Electrocardiology. 22:e12432
Background A negative sinus P wave in lead V2 (NPV2) of the electrocardiogram (ECG) is rare when leads are positioned correctly. This study was undertaken to clarify the significance of an unusually high incidence of this anomaly found in ECGs at my
Autor:
Rex N. MacAlpin
Publikováno v:
American Heart Journal. 125:1011-1017
Experiences in 81 patients with variant angina were reviewed with the goal of determining which clinical features were associated with the greatest risk of angina-linked cardiac arrest (13 patients) or sudden unexpected death (9 patients). The risk o
Autor:
Vinod K. Gupta, Richard S. Gerber, Jeffrey B. Sack, C.Todd Sherman, Larry Yeatman, Rex N. MacAlpin
Publikováno v:
Catheterization and Cardiovascular Diagnosis. 26:219-223
The development of complete heart block during left-sided cardiac catheterization is an uncommon event. We describe three cases of complete heart block complicating left-sided cardiac catheterization of patients with cardiac allografts. Review of the
Autor:
Rex N, MacAlpin
Publikováno v:
Indian Pacing and Electrophysiology Journal
Anatomic studies have shown that the left bundle branch divides into three fascicles in most humans. Changes in the 12 lead ECG (electrocardiogram) due to conduction abnormalities of the left anterior fascicle and left posterior fascicle are now part