R-wave amplitude changes during exercise in adolescents with left ventricular pressure and volume overload
dc.contributor.author | Wright, Seth | en_US |
dc.contributor.author | Rosenthal, Amnon | en_US |
dc.contributor.author | Bromberg, Judith | en_US |
dc.contributor.author | Schork, Anthony | en_US |
dc.date.accessioned | 2006-04-07T18:38:34Z | |
dc.date.available | 2006-04-07T18:38:34Z | |
dc.date.issued | 1983-10-01 | en_US |
dc.identifier.citation | Wright, Seth, Rosenthal, Amnon, Bromberg, Judy, Schork, Anthony (1983/10/01)."R-wave amplitude changes during exercise in adolescents with left ventricular pressure and volume overload." The American Journal of Cardiology 52(7): 841-846. <http://hdl.handle.net/2027.42/25108> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6T10-4BW0PPJ-12B/2/e0f7b3dcdffddd5e2f2196bb04d5e5d2 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/25108 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=6624675&dopt=citation | en_US |
dc.description.abstract | To determine the diagnostic value of exerciseinduced R-wave changes in adolescents with congenital heart disease, the responses of 50 adolescents without significant heart disease were compared with those of 72 patients with either a left ventricular (LV) pressure or volume overload lesion. Among the pressure overload group, 24 patients had valvular aortic stenosis (AS) and 27 had coarctation of the aorta. The volume overload group included 12 patients with mitral regurgitation (MR) and 9 with aortic regurgitation (AR). Severity of the cardiac lesion was assessed using cardiac catheterization in patients with AS, physical examination in patients with coarctation of the aorta and clinical or angiographiec criteria, or both, in patients with valvular regurgitation. The R wave was measured in 10 consecutive QRS complexes in leads II, aVF and V5 at rest, maximal exercise and 1-minute recovery. At maximal exercise, control subjects had a mean decrease in amplitude ([Delta]R) of -3.6 mm (p > 12 mm Hg (n = 7), the decrease in [Delta]R was also greater than that in patients with LV end-diastolic pressure <= 12 mm Hg (n = 14) (p < 0.006). Among patients with volume overload, more severe valvular regurgitation was associated with a smaller [Delta]R (p < 0.03). In patients with AS an increased [Delta]R reflects ischemia or diminished LV compliance, or both, whereas in patients with volume overload a decrease in [Delta]R is an indicator of the severity of regurgitation. | en_US |
dc.format.extent | 880277 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | R-wave amplitude changes during exercise in adolescents with left ventricular pressure and volume overload | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Internal Medicine and Specialties | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | The School of Public Health, The University of Michigan, Ann Arbor, Michigan, USA; The Division of Pediatric Cardiology, Department of Pediatrics, The University of Michigan Medical School, Ann Arbor, Michigan, USA | en_US |
dc.contributor.affiliationum | The School of Public Health, The University of Michigan, Ann Arbor, Michigan, USA; The Division of Pediatric Cardiology, Department of Pediatrics, The University of Michigan Medical School, Ann Arbor, Michigan, USA | en_US |
dc.contributor.affiliationum | The School of Public Health, The University of Michigan, Ann Arbor, Michigan, USA; The Division of Pediatric Cardiology, Department of Pediatrics, The University of Michigan Medical School, Ann Arbor, Michigan, USA | en_US |
dc.contributor.affiliationum | The School of Public Health, The University of Michigan, Ann Arbor, Michigan, USA; The Division of Pediatric Cardiology, Department of Pediatrics, The University of Michigan Medical School, Ann Arbor, Michigan, USA | en_US |
dc.identifier.pmid | 6624675 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/25108/1/0000540.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0002-9149(83)90425-3 | en_US |
dc.identifier.source | The American Journal of Cardiology | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.