Portal de Periódicos da CAPES

Transcutaneous Carbon Dioxide Treatment Is Capable of Reducing Peripheral Vascular Resistance in Hypertensive Patients

2018; Stanford University Highwire Press; Volume: 32; Issue: 6 Linguagem: Inglês

10.21873/invivo.11414

1791-7549

Balázs Németh, István Kiss, Bella Eszter Ajtay, Iván Péter, ZITA KRESKA, Attila Cziráki, Iván Gábor Horváth, Zénó Ajtay,

Thermoregulation and physiological responses

We aimed to investigate the effects of a single carbon dioxide (CO2) treatment on arterial stiffness by monitoring the changes of aortic pulse-wave velocity (PWV) and aortic augmentation index (AIXao), which are indicators of arterial stiffness.PWV and AIXao were measured by an invasively validated oscillometric device. The measurements of stiffness parameters were performed before the CO2 treatment, and at 1, 4 and 8 h after the first treatment.Thirty-one patients were included. No significant changes were found in PWV. AIXao decreased significantly 1 h and 4 h after CO2 treatment compared to baseline values (p=0.034 and p<0.001). AIXao increased 8 h after the CO2 treatment, but remained significantly lower than baseline AIXao values (p=0.016).CO2 treatment is capable of reducing peripheral vascular resistance. We hypothesize that CO2 is not only a temporal vasodilator but is also capable of activating vasodilation pathways.