Document Detail


A Clinical Phenotype of Adverse Response to Biventricular Pacing: A Case Series.
MedLine Citation:
PMID:  23305297     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Biventricular pacing is an established therapy for patients with heart failure with reduced left ventricular ejection fraction and prolonged QRS duration. However, there are few reports on the adverse effects of biventricular pacing. METHODS: Three patients who deteriorated rapidly following biventricular pacing (heart transplantation/ventricular assist device within 3 months of device implantation) were identified. The clinical, echocardiographic, and functional characteristics before and after device implantation were evaluated. The acute hemodynamic effects of biventricular pacing were assessed by cardiac catheterization. RESULTS: Preimplant assessment showed biventricular dysfunction, pulmonary hypertension, and relatively narrow QRS duration. The time from device implantation to assessment was 62, 58, and 42 days. All three patients developed right bundle branch block (RBBB)-type QRS morphology, deterioration in right ventricular (RV) function, and functional capacity in association with rapid clinical decline. Acutely, biventricular pacing resulted in higher right atrial pressure, pulmonary wedge pressure, lower cardiac output, and RV stroke work in all three patients. CONCLUSIONS: A phenotype of adverse response to biventricular pacing is characterized by relatively narrow QRS duration, RV dysfunction, and pulmonary hypertension. Clinical decline is rapid and associated with the development of RBBB-type morphology, worsening of pulmonary hemodynamics, and RV dysfunction with biventricular pacing.
Authors:
Hoong Sern Lim
Related Documents :
11494207 - Beating heart surgery or conventional cabg: are neurologic outcomes different?
18490287 - Prolonged total isovolumic time predicts cardiac events following coronary artery bypas...
16834857 - Left internal mammary artery usage in coronary artery bypass grafting: a measure of qua...
9778547 - Predictors of death and other cardiac events within 2 years after coronary artery bypas...
23110977 - Sensitivity, specificity and predictive values of linear and nonlinear indices of heart...
15320827 - Update in the management of diastolic heart failure.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-10
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  -     ISSN:  1540-8159     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
©2013, The Author. Journal compilation ©2013 Wiley Periodicals, Inc.
Affiliation:
University Hospital Birmingham NHS Trust, Edgbaston, Birmingham, UK.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Nanoparticles assume electrical potential according to substrate, size and surface termination.
Next Document:  INFLAMMATORY BOWEL DISEASE: MECHANISMS, REDOX CONSIDERATIONS AND THERAPEUTIC TARGETS.