BACKGROUND Male patients, aged over 65 years and with no history of heart disease, need the following tests as a preoperative evaluation: blood count, electrocardiogram and X-ray of the chest. OBJECTIVE To verify the presence of ischemic and heart rate changes and the impact of the anesthetic procedure on these patients. Also to verify, in this population, the value of continuous ambulatory m...

Sudden nocturnal deaths among "healthy" workers in Southeast Asia have been termed "sudden unexplained nocturnal death syndrome (SUNDS)" or "sudden unexplained death syndrome (SUDS)". The pathogenesis is still unknown. The paucity of publications on nocturnal monitoring and scientific data stimulated us to perform this study, which included biochemical tests and physiological monitoring during ...

The frequency and severity of cardiac arrhythmias were studied in 70 patients with spontaneous subarachnoid hemorrhage investigated prospectively with 24-hour Holter monitoring. Patients were less than 70 years old and without clinical and/or ECG signs of previous heart disease; Holter monitoring was initiated within 48 hours of subarachnoid hemorrhage. Arrhythmias were detected in 64 of the 70...

Ambulatory electrocardiographic monitoring and psychological testing were performed in 100 patients with chronic stable myocardial infarction. These patients were divided into four groups according to their chest pain and transient ST-segment depression by Holter monitoring during the follow-up period: group A, 40 patients without complications; group B, 20 patients with silent myocardial ische...

INTRODUCTION The current external monitoring strategies used to detect atrial fibrillation (AF) and atrial tachycardia (AT) episodes are based either on transient periods of shortterm ECG recordings or on infrequent period of long-term continuous monitoring. The aim of this study was to investigate the ability of short-term daily ECG monitoring strategies for the detection of AF events. METHO...

OBJECTIVE To examine by Holter electrocardiographic monitoring the effect of abruptly stopping nitrate treatment in patients with stable angina pectoris. PATIENTS 12 men with confirmed ischaemic heart disease and stable exertional class 3 angina (Canadian). All had episodes of horizontal or down sloping ST segment depression during 24 hour electrocardiographic monitoring. All were nitrate res...

Objective: Symptom-driven electrocardiogram (ECG) recording plays a significant role in the detection of post-ablation atrial fibrillation recurrence (AFR). However, making timely medical contact whenever symptoms occur may not be practical. Herein, deep learning (DL)-based handheld device was deployed to facilitate symptom-driven monitoring. Methods: A cohort patients with paroxysmal (AF) trai...

The aim of this study was to introduce an adaptive logic network computing method for detecting patients who were likely to show transient ischaemic episodes during ambulatory Holter monitoring, using parameters from a previously recorded standard twelve-lead resting electrocardiogram (ECG). In the present study, the adaptive logic network computing method is compared with other commonly used c...

The first patient, a 42-year-old female presented with frequent palpitations, corresponding to brief episodes of non-sustained, paroxysmal atrial fibrillation on 24hour Holter recordings. Hypertension was excluded, based on repeated blood pressure recordings and on ambulatory monitoring; echocardiography, exercise stress testing, as well as blood biochemistry were normal. However, mild subclini...