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08.10.2019 | Original Article

Orthostatic and Exercise Effects in Children Years After Kawasaki Disease

Zeitschrift:
Pediatric Cardiology
Autoren:
Yoshihiro Nakamura, Takehiro Hama, Yoshie Nakamura, Hideki Tsukada, Yoichiro Oda, Shoichi Awa
Wichtige Hinweise
Shoichi Awa was retired from the Kyorin University School of Medicine.

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Abstract

The long-term orthostatic and/or exercise hemodynamic effects in children years after Kawasaki disease (KD) were studied using clinical data from the treadmill exercise test (TMET). Heart rate (HR) and blood pressures (BPs) recorded in TMET were compared between two age, gender, and body scale-matched groups of patients with and without a history of KD. The KD group included 60 patients (9.8 ± 2.7 years old) 6.6 ± 2.6 years after KD without coronary arterial aneurysm. The non-KD group included 60 children (10.2 ± 2.7 years old) with other diagnoses. The exercise tolerance in TMET was not statistically different between the two groups. The KD group had a faster HR on standing than the non-KD group by 8.6% (101.5 ± 12.2 vs. 93.5 ± 15.9 bpm, respectively; P < 0.01), suggesting weaker and/or retarded orthostatic vasoconstriction. The pulse pressure was largely augmented above the 4th stage beyond 160 mmHg in 10.6 versus 0% (5 vs. 0) of the KD and non-KD groups (P < 0.05), respectively, while HR and BPs were not significantly different through exercise stages between the two groups. The KD group also showed a faster HR recovery five minutes after exercise than the non-KD group, by 5.7% (108.0 ± 11.6 vs. 102.2 ± 14.2 bpm, respectively; P < 0.05). Our results might indicate long-term subclinical impacts on the vascular tonus of children years after the disease that have not been recognized in previous studies.

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