RT Journal Article
SR Electronic
T1 Evaluation of the effectiveness of cyclical and constant current on sweat volume and stimulation for cystic fibroses diagnoses
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP P1217
VO 44
IS Suppl 58
A1 Carla Gomez
A1 Maria Servidoni
A1 Fernando Marson
A1 Paulo Canavezi
A1 Adriana Vinagre
A1 Célia Pavan
A1 Michelle Santos-Rodon
A1 Eduardo Costa
A1 Antonio Ribeiro
A1 Maria Ribeiro
A1 Francisco Vieira Junior
A1 Gabriel Hessel
A1 Carlos Levy
A1 Carmen Bertuzzo
A1 Sonia Lorena
A1 Jose Ribeiro
YR 2014
UL http://erj.ersjournals.com/content/44/Suppl_58/P1217.abstract
AB Objective: Analyze and compare different electrical currents and frequencies for stimulation and production of sweat using equipment of iontoforesis.Methods: An experimental, randomized study using an equipment of iontophoresis with pilocarpine conducted by the University Center of Biomedical Engineering. 48 healthy subjects were tested, all above 18 years old, using currents of 0.5 to 1.5 mA, frequency between 0 to 5.000 Hertz, sweat stimulation time of 10 minutes and collecting time of 30 minutes. The weight of sweat was measured, the impedance of electrode-skin combination and the subject discomfort during the exam.Results: The sweat weight was influenced on different currents (p= 0.0005) and frequencies (p=0.0088). The impedance was induced, also, on different currents (p=0.0007) and frequencies (0.0003). However there wasn't any result of the interaction between the different currents and frequencies on the sweat volume and the impedance (p &gt;0.74). Also there wasn't any statistical difference on the discomfort during the tests.Conclusion: The used electrical currents and frequencies were minor than those used in an ordinary sweat test and allowed effective stimulation and collecting of sweat, without collateral effects. Theses currents and frequencies constitute a promising method for the stimulation and the collecting of sweat on patients with Cystic Fibrosis. STSG: Sweat test study group.