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Your search keyword '"Schuger, Claudio D."' showing total 143 results
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143 results on '"Schuger, Claudio D."'

12. B-PO04-064 A PROSPECTIVE EVALUATION OF SUBCUTANEOUS IMPLANTABLE CARDIOVERTER DEFIBRILLATOR INFECTIONS WITH MID TERM FOLLOW-UP

Author

Gold, Michael R., primary, Miller, Mark P., additional, Aasbo, Johan D., additional, Weiss, Raul, additional, Burke, Martin C., additional, Gleva, Marye J., additional, Knight, Bradley P., additional, Miller, Marc A., additional, Schuger, Claudio D., additional, Carter, Nathan, additional, Leigh, Jill, additional, Brisben, Amy J., additional, and El-Chami, Mikhael F., additional

Published
2021
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19. ACC/AHA clinical competence statement on electrocardiography and ambulatory electrocardiography : A report of the ACC/AHA/ACP–ASIM Task Force on Clinical Competence (ACC/AHA Committee to Develop a Clinical Competence Statement on Electrocardiography and Ambulatory Electrocardiography) Endorsed by the International Society for Holter and Noninvasive Electrocardiology

Author

Kadish, Alan H., Buxton, Alfred E., Kennedy, Harold L., Knight, Bradley P., Mason, Jay W., Schuger, Claudio D., Tracy, Cynthia M., Winters, William L., Jr, Boone, Alan W., Elnicki, Michael, Hirshfeld, John W., Jr, Lorell, Beverly H., Rodgers, George P., and Weitz, Howard H.

Published
2001
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23. Need for a standardized approach to grading symptoms associated with ventricular tachyarrhythmias

Author

Lehmann, Michael H., Steinman, Russell T., Meissner, Marc D., Schuger, Claudio D., Mosteller, Robert D., and Nabih, Mervat A.

Subjects
Heart -- Physiological aspects, Arrhythmia -- Cases, Nosology -- Planning, Ventricular tachycardia -- Identification and classification, Health
Abstract

Patients who develop symptoms of congestive heart failure or angina are graded with regard to symptom severity on a four-tier system. This enables physicians to more easily communicate with each other in diagnosing and treating these patients. However, no such system exists for patients with ventricular tachyarrhythmias, abnormally rapid heartbeat associated with an irregular rhythm. This hampers the diagnosis and treatment of patients with this symptom. We propose that a four-tier grading system be implemented for classifying ventricular tachyarrhythmias. This system could be used for all types of tachyarrhythmias. Such a system could improve communication between physicians regarding patient care and could lead to standardization of effective treatments for the various stages. The proposed grading system may also be useful in determining the final prognosis (outcome) of the problem. The reliability of the system could be tested in a study examining the occurrence of sudden death in particular groups of patients with ventricular tachyarrhythmia. The need to implement a grading system for ventricular tachyarrhythmias is long overdue. (Consumer Summary produced by Reliance Medical Information, Inc.)

Published
1991

24. Long-Term Success of Irrigated Radiofrequency Catheter Ablation of Sustained Ventricular Tachycardia

Author

Marchlinski, Francis E., primary, Haffajee, Charles I., additional, Beshai, John F., additional, Dickfeld, Timm-Michael L., additional, Gonzalez, Mario D., additional, Hsia, Henry H., additional, Schuger, Claudio D., additional, Beckman, Karen J., additional, Bogun, Frank M., additional, Pollak, Scott J., additional, and Bhandari, Anil K., additional

Published
2016
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28. Wide QRS tachycardia in the conscious adult: ventricular tachycardia is the most frequent cause

Author

Steinman, Russell T., Herrera, Cesar, Schuger, Claudio D., and Lehmann, Michael H.

Subjects
Verapamil -- Dosage and administration, Diagnostic errors -- Case studies, Tachycardia -- Diagnosis, Ventricular tachycardia -- Diagnosis
Abstract

Ventricular tachycardia (VT), rapid heart rate produced by pathology of the ventricle, is a serious problem that is often associated with improper filling of the heart chambers and severely impaired hemodynamic (blood flow patterns) functioning. One irregularity that is seen clinically is wide QRS tachycardia, which may be associated with a stable hemodynamic situation. Wide QRS refers to a relatively increased length of electrical activity (greater than 0.14 seconds) in the phase identified on an electrocardiogram as the QRS complex, which reflects the muscular contraction of the ventricle. A generally held misconception, which in turn has led to misdiagnosis, is that VT must lead to circulatory collapse. To examine the association of hemodynamic stability in patients with wide QRS tachycardia, 20 consecutive patients were examined. Eighty-five percent of patients were found to have VT. As a result of this study, until proven otherwise, patients with wide QRS tachycardia should be regarded as being in VT and appropriate therapy for this condition should be instituted. Failure by physicians to understand that a wide QRS tachycardia is associated with ventricular difficulties may lead to improper treatment that can severely and adversely affect a patient's condition. Electrophysiologic testing has been shown to be of particular value in establishing this diagnosis., ABSTRACT: Hemodynamic stability during wide QRS tachycardia is commonly, albeit erroneously, taken as evidence for a supraventricular mechanism. To determine the magnitude for potential misdiagnosis in applying this notion clinically, we analyzed 20 consecutive cases of regular wide QRS tachycardia in conscious adult patients (mean age, 64 years). The most common heart disease was atherosclerotic (75%), with an associated history of remote myocardial infarction in 73% of the cases. Tachycardia was sustained for a mean of 4.8 hours prior to medical evaluation, with a mean rate of 186 beats per minute and mean systolic blood pressure of 111 mm Hg. A diagnosis of ventricular tachycardia (VT) was established in 17 cases (85%). In the patients with VT, atrioventricular dissociation was recognized on the 12-lead electrocardiogram in 38%, with Wellens' morphological features favoring the diagnosis in 73%. Following conversion to sinus rhythm, electrophysiological testing in 17 patients reproduced the clinical arrhythmia in 94% (with a replication rate of 100% in 15 patients with VT), with at least one additional unsuspected VT morphology induced in 53% of patients with VT. Thus, VT should be considered the most likely cause of regular wide QRS tachycardia in the conscious adult patient, especially with a history of remote myocardial infarction. Recognition of this simple principle and careful examination of the 12-lead electrocardiogram may help to prevent the misapplication of pharmacotherapy in the vast majority of these patients.

Published
1989

30. Reemployment following implantation of the automatic cardioverter defibrillator

Author

Kalbfleisch, Karen R., Lehmann, Michael H., Steinman, Russell T., Jackson, Ken, Axtell, Kathi, Schuger, Claudio D., and Tchou, Patrick J.

Subjects
Cardiac patients -- Employment, Cardiovascular instruments, Implanted -- Social aspects, Quality of life -- Evaluation, Defibrillators -- Social aspects, Health
Abstract

One hundred one patients who received an implantable automatic cardioverter defibrillator (ACD) were evaluated to determine the reemployment rate and factors associated with return to work. Forty-seven were employed before ACD implantation. Their mean ([+ or -] standard deviation) age was 53 [+ or -] 11 years, 83% were men, 75% had coronary artery disease, 76% presented with cardiac arrest and 28% had concomitant cardiac surgery. The mean ejection fraction of these patients was 0.41 [+ or -] 0.15. At follow-up, 29 patients (62%) had resumed work at 11 [plus or minus] 9 weeks after implantation. Those who returned to work were better educated (15 vs 11 years, p

Published
1989

33. ACC/AHA clinical competence statement on electrocardiography and ambulatory electrocardiography41This document was approved by the American College of Cardiology Board of Trustees in November 2001 and the American Heart Association Science Advisory and Coordinating Committee in August 2001.42When citing this document, the American College of Cardiology and the American Heart Association would appreciate the following citation format: Kadish AH, Buxton AE, Kennedy HL, Knight BP, Mason JW, Schuger CD, Tracy CM. ACC/AHA clinical competence statement on electrocardiography and ambulatory electrocardiography: a report of the American College of Cardiology/American Heart Association/American College of Physicians-American Society of Internal Medicine Task Force on Clinical Competence (ACC/AHA Committee to Develop a Clinical Competence Statement on Electrocardiography and Ambulatory Electrocardiography); J Am Coll Cardiol 2001;38:2091–100.43This document is available on the World Wide Web sites of the American College of Cardiology (www.acc.org) and the American Heart Association (www.americanheart.org). Reprints of this document may be purchased for $5.00 each by calling 1-800-253-4636 or by writing to the American College of Cardiology, Educational Services, 9111 Old Georgetown Road, Bethesda, Maryland 20814-1699.44© 2001 by the American College of Cardiology and American Heart Association, Inc.

Author

Kadish, Alan H., primary, Buxton, Alfred E., additional, Kennedy, Harold L., additional, Knight, Bradley P., additional, Mason, Jay W., additional, Schuger, Claudio D., additional, Tracy, Cynthia M., additional, Winters, William L., additional, Boone, Alan W., additional, Elnicki, Michael, additional, Hirshfeld, John W., additional, Lorell, Beverly H., additional, Rodgers, George P., additional, and Weitz, Howard H., additional

Published
2001
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36. Twiddler's Syndrome Variants in ICD Patients

Author

BOYLE, NOEL G., primary, ANSELME, FREDERIC, additional, MONAHAN, KEVIN M., additional, BESWICK, PHILIPPA, additional, SCHUGER, CLAUDIO D., additional, ZEBEDE, JOSEPH, additional, and JOSEPHSON, MARK E., additional

Published
1998
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37. Implantable Cardioverter Defibrillator Utilization Among Device Recipients Presenting Exclusively with Syncope or Near-Syncope

Author

MILITIANU, ARIE, primary, SALACATA, ABRAHAM, additional, SEIBERT, KAREN, additional, KEHOE, RICHARD, additional, BAGA, JOHN J., additional, MEISSNER, MARC D., additional, PIRES, LUIS A., additional, SCHUGER, CLAUDIO D., additional, STEINMAN, RUSSELL T., additional, MOSTELLER, ROBERT D., additional, PALTI, AMOS J., additional, DAVID, JOSEPH, additional, LESSMEIER, TIMOTHY J., additional, and LEHMANN, MICHAEL H., additional

Published
1997
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43. Effect of defibrillation threshold testing on heart failure hospitalization or death in the Multicenter Automatic Defibrillator Implantation Trial-Cardiac Resynchronization Therapy (MADIT-CRT).

Author

Aktas MK, Huang DT, Daubert JP, Schuger CD, McNitt S, Goldenberg I, Moss AJ, Zareba W, Aktas, Mehmet K, Huang, David T, Daubert, James P, Schuger, Claudio D, McNitt, Scott, Goldenberg, Ilan, Moss, Arthur J, and Zareba, Wojciech

Abstract

Background: Defibrillation threshold (DFT) testing is commonly practiced at the time of implantable cardioverter-defibrillator (ICD) implant. The clinical consequence of ICD shocks delivered during DFT testing is unknown.Objective: The purpose of this study was to determine the impact of ICD shocks and ICD shock energy level delivered during DFT testing in patients enrolled in the Multicenter Automatic Defibrillator Implantation Trial with Cardiac Resynchronization Therapy (MADIT-CRT) on clinical outcomes.Methods: Patients who underwent DFT testing within 1 month of device implant were categorized by the number of ICD shocks delivered during DFT testing (0, 1, 2, ≥3 shocks) and according to high vs low (>20 J vs ≤20 J) energy ICD shocks. Clinical outcomes consisting of heart failure (HF) or death, death alone, HF alone, and ventricular tachycardia or ventricular fibrillation were analyzed in each group.Results: DFT testing was performed in 1,659 patients within 1 month of device implant (1 shock in 365 patients, 2 shocks in 896 patients, 3+ shocks in 398 patients). High-energy ICD shocks were delivered in 609 patients. Increasing number of ICD shocks during DFT testing was not associated with an increase risk for the primary end-point of HF or death or for any of the secondary end-points of HF alone, VT/VF alone, or death. Delivery of high vs low-energy ICD shocks was not associated with adverse clinical outcomes.Conclusions: In patients with mild symptoms of HF, increasing number of ICD shocks and delivery of high energy ICD shocks during DFT testing was not associated with increased risk for HF or death or future VT/VF episodes. [ABSTRACT FROM AUTHOR]

Published
2013
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