The absence of high-frequency QRS changes in the presence of standard electrocardiographic QRS changes of old myocardial infarction

Analysis of high-frequency qrs components obtained from body surface potential mapping in anterior myocardial infarction

“…Theoretically, high frequency content of the QRS complex may decrease, due to conduction velocity reduction derived from peri-infarction block. While some authors have observed this [3][4], others have not found differences between patients with infarction and normal subjects [5] or even have reported some increase in the high-frequency content [6].…”

Scientific STAFF and MALT meetings — past, present, and future

“…The MALT meetings were scheduled annually near the Glasgow Western infirmary [5] where the database was located. Early participants in the STAFF meetings were from the laboratories of Pahlm and Sörnmo in Lund, Sweden on high frequency ECG [9][10][11], myocardial scintigraphy [12], and the "24-view ECG" [13]; from the laboratory of Laguna in Zaragoza, Spain, on quantitative ischemia indices [14,15]; Lander in Oklahoma City, USA on abnormal intra-QRS potentials [16]; and Rubel and Fayn in Lyon, France on the CAVIAR method for serial comparison of ECGs [17].…”

Multifractal characterization of the autonomous nervous system during prolonged coronary artery occlusion

“…This study was based on patients from the Staff3 database undergoing elective PTCA in the catheterization laboratory at the Charleston Area Medical Center, West Virginian, USA [11]. Continuous high-resolution ECGs were acquired at 1 kHz sample frequency, with 0.6 mV amplitude resolution.…”