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Cardiopulmonary exercise test in the evaluation of exercise capacity, arterial hypertension, and degree of descending aorta stenosis in adults after repair of coarctation of the aorta
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Abstract
Methods: 74 patients at mean age 31.2 ± 9.8 years. The controls: 30 at mean age 32.2 ± 6.6. Descending aorta (AoD) gradient was evaluated by echocardiography. The group with residual AoD stenosis: ≥ 25 mm Hg (AoD+) 32 patients and AoD–: 41 patients. Subgroups without AH (AH–, n = 32), exercise-induced AH (AHex, n = 10), persistent AH (AH+, n = 32). The maximum exercise test was performed.
Results: A comparison of the study and control groups: VO2max: p = 0.0001), VO2max%: p=0.0001 and VE/VCO2: p = 0.001. Negative correlation: between VO2max and the age at the time of surgery: p = 0.004) and a positive: between VE/VCO2 and age at surgery: p = 0.005. No differences were observed between the AoD+ and AoD– groups with respect to cardiopulmonary parameters. A comparison of the AH+ and AH– groups revealed: VO2max: p = 0.01, VO2max%: p = 0.02 and VE/VCO2: p = 0.003. A comparison of the AHex and AH– groups showed VE/VCO2: p = 0.01.
Conclusions: The exercise capacity of adults after surgical CoAo repair is reduced. This is more pronounced in patients with AH and those operated on at a more advanced age, but not in AoD+. (Cardiol J 2007; 14: 76–82)
Abstract
Methods: 74 patients at mean age 31.2 ± 9.8 years. The controls: 30 at mean age 32.2 ± 6.6. Descending aorta (AoD) gradient was evaluated by echocardiography. The group with residual AoD stenosis: ≥ 25 mm Hg (AoD+) 32 patients and AoD–: 41 patients. Subgroups without AH (AH–, n = 32), exercise-induced AH (AHex, n = 10), persistent AH (AH+, n = 32). The maximum exercise test was performed.
Results: A comparison of the study and control groups: VO2max: p = 0.0001), VO2max%: p=0.0001 and VE/VCO2: p = 0.001. Negative correlation: between VO2max and the age at the time of surgery: p = 0.004) and a positive: between VE/VCO2 and age at surgery: p = 0.005. No differences were observed between the AoD+ and AoD– groups with respect to cardiopulmonary parameters. A comparison of the AH+ and AH– groups revealed: VO2max: p = 0.01, VO2max%: p = 0.02 and VE/VCO2: p = 0.003. A comparison of the AHex and AH– groups showed VE/VCO2: p = 0.01.
Conclusions: The exercise capacity of adults after surgical CoAo repair is reduced. This is more pronounced in patients with AH and those operated on at a more advanced age, but not in AoD+. (Cardiol J 2007; 14: 76–82)
Keywords
coarctation of the aorta in adults; cardiopulmonary exercise test
About this articleTitle
Cardiopulmonary exercise test in the evaluation of exercise capacity, arterial hypertension, and degree of descending aorta stenosis in adults after repair of coarctation of the aorta
Journal
Issue
Pages
76-82
Published online
2006-12-01
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Bibliographic record
Cardiol J 2007;14(1):76-82.
Keywords
coarctation of the aorta in adults
cardiopulmonary exercise test
Authors
Olga Trojnarska
Adrian Gwizdała
Agnieszka Katarzyńska
Magdalena Łanocha
Sławomir Katarzyński
Zofia Oko-Sarnowska
Andrzej Szyszka i Lucyna Kramer
