[Study of cardiopulmonary adaptation during exercise in patients after extracardiac conduit total cavopulmonary connection]. 2007

Zong-tao Yin, and Hong-yu Zhu, and Zeng-wei Wang, and Ren-fu Zhang, and Nan-bin Zhang, and Min-hua Fang, and Heng-chang Song
Department of Cardiovascular Surgery, the General Hospital of Shenyang Military Command, Shenyang 110016, China. yzt1210@hotmail.com.

OBJECTIVE To study cardiopulmonary physiology during exercise in patients after extracardiac total cavopulmonary connection (ECTCPC). METHODS 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. RESULTS 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. CONCLUSIONS 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.

UI MeSH Term Description Entries
D008297 Male Males
D010807 Physical Endurance The time span between the beginning of physical activity by an individual and the termination because of exhaustion. Endurance, Physical,Physical Stamina,Stamina, Physical
D011184 Postoperative Period The period following a surgical operation. Period, Postoperative,Periods, Postoperative,Postoperative Periods
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D005080 Exercise Test Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used. Arm Ergometry Test,Bicycle Ergometry Test,Cardiopulmonary Exercise Testing,Exercise Testing,Step Test,Stress Test,Treadmill Test,Cardiopulmonary Exercise Test,EuroFit Tests,Eurofit Test Battery,European Fitness Testing Battery,Fitness Testing,Physical Fitness Testing,Arm Ergometry Tests,Bicycle Ergometry Tests,Cardiopulmonary Exercise Tests,Ergometry Test, Arm,Ergometry Test, Bicycle,Ergometry Tests, Arm,Ergometry Tests, Bicycle,EuroFit Test,Eurofit Test Batteries,Exercise Test, Cardiopulmonary,Exercise Testing, Cardiopulmonary,Exercise Tests,Exercise Tests, Cardiopulmonary,Fitness Testing, Physical,Fitness Testings,Step Tests,Stress Tests,Test Battery, Eurofit,Test, Arm Ergometry,Test, Bicycle Ergometry,Test, Cardiopulmonary Exercise,Test, EuroFit,Test, Exercise,Test, Step,Test, Stress,Test, Treadmill,Testing, Cardiopulmonary Exercise,Testing, Exercise,Testing, Fitness,Testing, Physical Fitness,Tests, Arm Ergometry,Tests, Bicycle Ergometry,Tests, Cardiopulmonary Exercise,Tests, EuroFit,Tests, Exercise,Tests, Step,Tests, Stress,Tests, Treadmill,Treadmill Tests
D005260 Female Females
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006330 Heart Defects, Congenital Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life. Congenital Heart Disease,Heart Abnormalities,Abnormality, Heart,Congenital Heart Defect,Congenital Heart Defects,Defects, Congenital Heart,Heart Defect, Congenital,Heart, Malformation Of,Congenital Heart Diseases,Defect, Congenital Heart,Disease, Congenital Heart,Heart Abnormality,Heart Disease, Congenital,Malformation Of Heart,Malformation Of Hearts
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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