Disease relevance of Electrocardiography, Ambulatory

• In patients similar to those in this study, if antiarrhythmic-drug therapy is to be used to prevent recurrences of ventricular tachyarrhythmias, treatment with sotalol and assessment of its potential efficacy by Holter monitoring are a reasonable initial strategy [1].
• None of the volunteers and patients with stable angina and only 4% of the patients with unstable angina had episodes of ST elevation during Holter monitoring (cocaine users compared with volunteers, P = 0.0004) [2].
• We recently reported a retrospective experience with serial Holter monitoring as a guide to therapy in patients with sustained ventricular tachycardia treated with amiodarone [3].
• Patients were classified as having high risk test results as follows: thallium score less than or equal to 45 (33 patients), left ventricular ejection fraction less than or equal to 40% (51 patients) and complex ventricular arrhythmias on Holter monitoring (36 patients) [4].
• Thus, rest thallium-201 imaging performed before hospital discharge provides important prognostic information in survivors of acute myocardial infarction which is comparable with that provided by left ventricular ejection fraction and Holter monitoring [4].

Psychiatry related information on Electrocardiography, Ambulatory

• The cardiovascular effects and safety of transdermal nicotine patches were assessed in 50 healthy smokers using repeated 48 hour ambulatory electrocardiographic monitoring as a part of a smoking cessation program [5].

High impact information on Electrocardiography, Ambulatory

• MEASUREMENTS: 1) 24-hour three-channel esophageal manometry and two-channel pH monitoring, 2) provocation testing with intravenous edrophonium chloride and esophageal acid perfusion, and 3) Holter electrocardiography conducted during the first two tests [6].
• MAIN RESULTS: Eight of the 21 patients with cocaine addiction had frequent episodes of ST elevation during Holter monitoring; these episodes occurred almost exclusively during the first 2 weeks of withdrawal [2].
• Exercise thallium tomography and 24-hour Holter monitoring were also performed [7].
• Significance and incidence of concordance of drug efficacy predictions by Holter monitoring and electrophysiological study in the ESVEM Trial. Electrophysiologic Study Versus Electrocardiographic Monitoring [8].
• Compared with the baseline values, the number of anginal attacks per week and the number and duration of ischemic episodes per 48 hours during Holter monitoring decreased significantly by similar magnitudes in the placebo and ranolazine groups [9].

Chemical compound and disease context of Electrocardiography, Ambulatory

• The Total Ischemic Burden Bisoprolol Study (TIBBS) was a randomized double-blind controlled study with two parallel groups; 330 patients from 30 centers in seven European countries with stable angina pectoris, a positive exercise test and more than two transient ischemic episodes during 48 h of Holter monitoring (central evaluation) were included [10].
• Twenty-one patients admitted to the Coronary Care Unit as a result of angina at rest underwent both Holter monitoring and an echo-ergonovine test during placebo and following either isosorbide-5-mononitrate or nifedipine according to a double-blind randomized trial [11].
• RESEARCH DESIGN AND METHODS: We carried out 72-h continuous glucose monitoring along with simultaneous cardiac Holter monitoring for ischemia [12].
• As determined by 48-hour weekly Holter monitoring, the mean reduction in ventricular premature complex (VPC) frequency was significantly greater with ethmozine (86%) and with ethmozine plus propranolol (90%) than with propranolol (41%) (p less than 0.05) [13].
• Sudden death during continuous Holter monitoring out of hospital after nitroglycerin consumption [14].

Biological context of Electrocardiography, Ambulatory

• Autonomic function was studied by assessing heart rate variability on 24-h Holter monitoring and plasma norepinephrine levels during supine rest [15].
• Outcome measures included changes in baroreflex sensitivity (phenylephrine bolus method) and heart rate variability (24-h Holter monitoring) and the endurance time at 85% of peak oxygen consumption [16].
• METHODS: In 15 adult patients, standard electrocardiogram, 24-h Holter monitoring, power spectral analysis of heart variability, exercise testing, Valsalva maneuver and rapid positional changes were performed 3, 6 and 12 months after the Cox-maze III procedure and mitral valve surgery or closure of atrial septal defect [17].
• ACC/AHA Guidelines for Ambulatory Electrocardiography. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Revise the Guidelines for Ambulatory Electrocardiography). Developed in collaboration with the North American Society for Pacing and Electrophysiology [18].
• Thirty-eight patients who had been on stable doses of levodopa underwent a complete cardiac examination, including measurement of recumbent and erect blood pressure and 24 hour ambulatory electrocardiographic monitoring [19].

Anatomical context of Electrocardiography, Ambulatory

• Twenty-two patients with known coronary artery disease, not receiving antianginal medications, were evaluated by repeated exercise testing according to the Bruce and the modified Davidson protocols and by 48-h ambulatory electrocardiographic monitoring [20].
• The electrophysiologic effects and antiarrhythmic efficacy of moricizine HCl (1.5 to 2.0 mg/kg intravenously, and 600 to 800 mg orally/24 hours) were studied using electrophysiologic testing, ambulatory electrocardiographic monitoring, exercise stress testing and transesophageal stimulation of the left atrium [21].
• Initial evaluation included ambulatory electrocardiography, carotid sinus massage before and after atropine and prolonged head-up tilt [22].
• Corwin reduced the maximum heart rate during exercise from 162(16) beats/min to 120(9) beats/min and reduced the peak heart rate during ambulatory electrocardiography from 113(11) to 90(6) beats/min consistent with a beta adrenoreceptor antagonist action at higher levels of sympathetic nervous system activity [23].
• MEASUREMENTS AND MAIN RESULTS: Measurement of hemodynamic variables using a thermodilution pulmonary artery catheter, oxygenation, concentration of plasma atrial natriuretic peptide (ANP) and Holter monitoring were started preoperatively and continued for the 3 postoperative days (PODs) [24].

Associations of Electrocardiography, Ambulatory with chemical compounds

• To confirm and substantiate these findings, a prospective study was designed that included baseline 24 hr Holter monitoring and serial Holter monitoring after 1 week of therapy with amiodarone [3].
• Both propranolol and digoxin significantly increased the numbers of episodes of SVT in the three patients tested with serial Holter monitoring [25].
• Holter monitoring did not show excessive bradycardic episodes even after administration of propranolol [26].
• The efficacy of the drug in preventing ischemic episodes was assessed by computing the ischemic episodes (recorded by Holter monitoring) and nitroglycerin consumption in each 6 hr ketanserin period and in the corresponding placebo period [27].
• After baseline examination between 48 and 72 hours after symptom onset, patients were randomly assigned to placebo or captopril administration, and on the third day, 24-hour Holter monitoring was repeated [28].

Gene context of Electrocardiography, Ambulatory

• After each treatment arm, 48 hour Holter monitoring was repeated and urinary thromboxane (Tx) B2, 11-dehydro-TxB2, plasma prothrombin fragment F1+2, macrophage colony stimulating factor (MCSF), and interleukin (IL)-6 were measured [29].
• The introduction of frequency modulated recording systems for ambulatory electrocardiographic monitoring (Oxford Medilog mark 2 and Cardiodyne cassette recorders) prompted comparison with a conventional direct recording type of recorder (Oxford Medilog mark 1) [30].
• 2. Twelve COPD patients (FEV1 = 1.2 +/- 0.3 L; PaO2 = 65.7 +/- 9.0 mmHg) were evaluated by 24-h Holter monitoring on three different days [31].
• Clinical competence in ambulatory electrocardiography. A statement for physicians from the AHA/ACC/ACP Task Force on Clinical Privileges in Cardiology [32].
• Continuous 48 h ambulatory electrocardiographic monitoring was performed in 113 patients (age 38 +/- 14 years) with hypertrophic cardiomyopathy [33].

Analytical, diagnostic and therapeutic context of Electrocardiography, Ambulatory

• An exercise treadmill test, 24 h ambulatory electrocardiographic (Holter) monitoring (analyzed blindly) and an accurate diary of anginal attacks and nitroglycerin use were obtained at the end of each placebo period [34].
• QT intervals were measured over a wide range of preceding RR intervals during sinus rhythm by 24-h Holter electrocardiography before and after oral administration of four class III agents: E4031, dofetilide, MS551 and d-sotalol [35].
• Patient age, previous drug therapy, duration of treatment, flecainide levels and corrected QT intervals were recorded; 24 h Holter monitoring was utilized to gauge efficacy of treatment [36].
• Medical history and variables from the ECG while exercising, thallium scintigrams, Holter-monitoring, echocardiography and chest X-ray were recorded [37].
• We investigate whether symptoms of pressure, tightness, and/or pain in the chest, neck, and/or throat after administration of the 5HT1B/1D agonist avitriptan were associated with objective impairment of the myocardial function on 12-lead electrocardiogram (ECG), continuous ECG (Holter) monitoring, and echocardiography [38].

References