Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2011-4-15
pubmed:abstractText
Heart transplantation is an increasingly acceptable therapeutic option for children with end-stage and complex congenital heart disease. With advances in surgery, immunosuppression, and follow-up care, functional outcomes need to be evaluated. We report the results of serial exercise testing performed using stress echocardiography in a cohort of pediatric HTP. HTP (n = 7) exercised on a semi-recumbent ergometer to volitional fatigue. Echocardiography-Doppler measurements, HR, and blood pressure were taken at rest and during staged exercise. Results were compared with healthy CON (n = 12). HTP did significantly less work during exercise (940 vs. 1218 J/kg, p < 0.03). Their SVI (33 vs. 49 mL/m(2), p < 0.003), CI (5.16 vs. 9.25 L/min/m(2), p < 0.0005), and HR (162 vs. 185 bpm, p < 0.02) were lower at peak exercise. HTP had a lower SF at peak exercise (48% vs. 52%, p < 0.03) and an abnormal relationship between the MVCFc and ?PS. During follow-up, hemodynamics and left ventricular function remained relatively constant in HTP. HTP are able to exercise safely; however, their exercise tolerance is reduced, and hemodynamics and contractility are diminished. Over time, their hemodynamics and left ventricular function have remained relatively constant.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1399-3046
pubmed:author
pubmed:copyrightInfo
© 2011 John Wiley & Sons A/S.
pubmed:issnType
Electronic
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
265-71
pubmed:meshHeading
pubmed-meshheading:21492351-Adolescent, pubmed-meshheading:21492351-Adult, pubmed-meshheading:21492351-Blood Pressure, pubmed-meshheading:21492351-Child, pubmed-meshheading:21492351-Echocardiography, pubmed-meshheading:21492351-Echocardiography, Stress, pubmed-meshheading:21492351-Exercise, pubmed-meshheading:21492351-Exercise Test, pubmed-meshheading:21492351-Exercise Tolerance, pubmed-meshheading:21492351-Female, pubmed-meshheading:21492351-Heart Diseases, pubmed-meshheading:21492351-Heart Transplantation, pubmed-meshheading:21492351-Hemodynamics, pubmed-meshheading:21492351-Humans, pubmed-meshheading:21492351-Immunosuppressive Agents, pubmed-meshheading:21492351-Male, pubmed-meshheading:21492351-Pediatrics, pubmed-meshheading:21492351-Treatment Outcome, pubmed-meshheading:21492351-Ultrasonography, Doppler, pubmed-meshheading:21492351-Ventricular Function, Left
pubmed:year
2011
pubmed:articleTitle
Serial measurements of exercise performance in pediatric heart transplant patients using stress echocardiography.
pubmed:affiliation
Department of Pediatrics, BC Children's Hospital, The University of British Columbia, Vancouver, BC, Canada.
pubmed:publicationType
Journal Article