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Study of cardiopulmonary adaptation during exercise in patients after extracardiac conduit total cavopulmonary connection / 中华外科杂志
Chinese Journal of Surgery ; (12): 808-811, 2007.
Article in Chinese | WPRIM | ID: wpr-340912
ABSTRACT
<p><b>OBJECTIVE</b>To study cardiopulmonary physiology during exercise in patients after extracardiac total cavopulmonary connection (ECTCPC).</p><p><b>METHODS</b>Twenty-six patients were studied after ECTCPC by exercise testing with bicycle treadmill protocol. Heart rate (HR), blood pressure (BP), respiratory frequency (RF) and pulse oxygen saturation (SpO(2)) were measured continuously; twenty-six patients suffered from Fallot 4 underwent biventricular repair were also studied as control group.</p><p><b>RESULTS</b>In ECTCPC group, HR, BP, SpO(2) and RF all increased with exercise below 3 grade; when exceed 4 grade, BP, SpO(2) decreased and RF kept increasing. Compared with control group, HR, RF were higher (t = 2.13, P < 0.05; t = 2.31, P < 0.05), SpO(2) was lower (t = 2.46, P < 0.05) under the quiescent condition; When exceed 3 grade, HR, BP, SpO(2) decreased more significantly, but RF increased continuously. In fenestration group after ECTCPC, HR reached the top at 5 grades, but in group without fenestration it reached the top at 3 grades; In the whole process of exercising, RF kept higher and SpO(2) kept lower in fenestration group.</p><p><b>CONCLUSIONS</b>The ECTCPC patients showed obviously exercise limitation. Totally bypass of sinoatrial node in this operation may have some adverse effects on the integer regulation of HR.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Physical Endurance / Physiology / Postoperative Period / General Surgery / Follow-Up Studies / Fontan Procedure / Exercise Test / Heart Defects, Congenital / Methods Type of study: Observational study / Prognostic study Limits: Adolescent / Adult / Child / Child, preschool / Female / Humans / Male Language: Chinese Journal: Chinese Journal of Surgery Year: 2007 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Physical Endurance / Physiology / Postoperative Period / General Surgery / Follow-Up Studies / Fontan Procedure / Exercise Test / Heart Defects, Congenital / Methods Type of study: Observational study / Prognostic study Limits: Adolescent / Adult / Child / Child, preschool / Female / Humans / Male Language: Chinese Journal: Chinese Journal of Surgery Year: 2007 Type: Article