Abstract
Idiopathic hyperhidrosis (IH) is characterized by excessive and uncontrolled production of sweat, mainly localized to the soles, palms, axillae and craniofacial area. Although IH is a disease concerning the autonomic nervous system, it is not clear yet whether this dysfunction is local or systemic. To evaluate the autonomic control of cardiovascular system by measuring values of heart rate recovery (HRR) and systolic blood pressure recovery (SBPR) obtained at various time intervals after maximal graded exercise treadmill testing in patients with IH compared with controls. The study population comprised 36 patients with IH (20 men, 16 women; mean age 25 ± 7 years) and 36 healthy controls (HCs) (12 men, 24 women; mean age 27 ± 5 years). All patients were selected from young, nonobese and healthy sedentary individuals. Peak HR values reached in patients with IH were significantly higher compared with the HC group (P < 0.001). The obtained HRR values at minutes 3, 4 and 5 were significantly lower in the IH than the HC group [57 ± 16 vs. 64 ± 9 (P = 0.03); 61 ± 14 vs. 68 ± 9 (P = 0.03); 64 ± 12 vs. 70 ± 7 (P < 0.01)]. In addition, calculated mean values for SBPR1 and SBPR2 were > 1 in patients with IH (1.04 ± 0.15 vs. 0.98 ± 0.08 and 1.0 ± 0.12 vs. 0.94 ± 0.06, respectively) and these were statistically significant compared with the HC group (P = 0.04 and P = 0.03, respectively). The significantly impaired SBPR and decreased HRR values we observed in patients with IH may indicate that the autonomic dysfunction in IH is a systemic disorder with cardiovascular effects, rather than a merely local disease. Both HRR and SBPR values may provide additional information about predicting adverse cardiovascular events in the future even in apparently healthy young patients with IH.
Published Version
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