BACKGROUND Outpatient ambulatory cardiac rhythm monitoring is a routine part of the management of patients with paroxysmal atrial fibrillation (AF). Current systems are limited by patient convenience and practicality. METHODS We compared the Zio(®) Patch, a single-use, noninvasive waterproof long-term continuous monitoring patch, with a 24-hour Holter monitor in 74 consecutive patients with p...

To detect unsuspected arrhythmias, 60 patients with previous myocardial infarction were studied by both submaximal treadmill exercise testing and 10 hours of continuous ECG monitoring (Holter technique) during normal activity. Significant arrhythmias were detected in 28 of 60 patients (47%). Eight patients (13%) had one or more premature ventricular contractions on their resting ECG and all had...

Presented here is a 40-year review of Del Mar Avionics’ Medical Systems Division, highlighting the company’s clinical application teamwork with members of the International Society of Holter and Noninvasive Electrocardiology and other cardiologists worldwide to develop and apply its novel long-term clinical ambulatory heart monitoring instrumentation for reporting and managing abnormal rhythm a...

To detect unsuspected arrhythmias, 60 patients with previous myocardial infarction were studied by both submaximal treadmill exercise testing and 10 hours of continuous ECG monitoring (Holter technique) during normal activity. Significant arrhythmias were detected in 28 of 60 patients (47%). Eight patients (13%) had one or more premature ventricular contractions on their resting ECG and all had...

OBJECTIVES We sought to investigate the relationship among C-reactive protein (hs-CRP), clinical characteristics, exercise stress test responses, and ST-segment changes during daily life in patients with typical chest pain and normal coronary angiograms (CPNCA). BACKGROUND Patients with CPNCA have coronary microvascular endothelial dysfunction and myocardial ischemia. Elevated hs-CRP levels h...

UNLABELLED Variant angina presenting acute chest pain and ST elevation on electrocardiogram accounts for an underdiagnosed scenario in acute coronary syndrome and contributes to syncope as a consequence of ventricular arrhythmia. Here, we report a case of a 48-year-old man with a recent onset of chest pain and palpitations followed by syncope. Holter monitoring documented 2 episodes of evolving...

The optimal duration of Holter monitoring (HM) to minimize costs and maximize yield is unknown. In a retrospective review of 164 patients referred to a tertiary care center for evaluation with 2 days of HM, we found that 48 hours was not cost effective when compared with the traditional 24-hour period.

Rest thallium-201 scintigraphy, radionuclide ventriculography and 24 hour Holter monitoring are acceptable methods to assess myocardial necrosis, performance and electrical instability. This study examined the relative value of the three tests, when obtained a mean of 7 days after acute myocardial infarction, in predicting 1 year mortality in 93 patients. Planar thallium-201 images were obtaine...

BACKGROUND AND PURPOSE Previous studies have reported a low, approximately 1% to 3%, rate of detection of occult atrial fibrillation (AF) with Holter monitor in patients with acute stroke. Furthermore, at least one study has reported that Holter monitoring could not always corroborate initial electrocardiographic (ECG) detection of AF suggesting underestimation of AF by Holter. We compare the d...