Zita Kreska1, Balázs Németh1,2, István Kiss2, Iván Péter1, Zénó Ajtay1,3, László Hejjel4. 1. Zsigmondy Vilmos SPA Hospital, Harkány, Hungary. 2. Department of Public Health Medicine, Medical School, University of Pécs, Pécs, Hungary. 3. Heart Institute, Medical School, University of Pécs, Pécs, Hungary. 4. Heart Institute, Medical School, University of Pécs, Pécs, Hungary hejjel.laszlo@pte.hu.
Abstract
BACKGROUND: The aim of this study was to investigate the effects of carbon-dioxide treatment on heart rate variability (HRV) parameters: mean RR interval (RRI), standard deviation of RR intervals (SDNN), root mean square of successive RR differences (RMSSD); and Porta and Guzik indices, as measures of heart rate asymmetry. MATERIALS AND METHODS: Twenty patients were enrolled (mean±SD, age=59±7.8 years). Measurements were performed before CO2 treatment, at the beginning of treatment, at 15 min of treatment, immediately after and 1 h after the treatment. RESULTS: Significant increase in SDNN was found 1 h after the treatment when compared to that before it (p=0.011). There were no significant changes in other parameters. CONCLUSION: CO2 treatment can influence the autonomic nervous system identified by SDNN changes. However, larger studies are required to confirm these results. Copyright
BACKGROUND: The aim of this study was to investigate the effects of carbon-dioxide treatment on heart rate variability (HRV) parameters: mean RR interval (RRI), standard deviation of RR intervals (SDNN), root mean square of successive RR differences (RMSSD); and Porta and Guzik indices, as measures of heart rate asymmetry. MATERIALS AND METHODS: Twenty patients were enrolled (mean±SD, age=59±7.8 years). Measurements were performed before CO2 treatment, at the beginning of treatment, at 15 min of treatment, immediately after and 1 h after the treatment. RESULTS: Significant increase in SDNN was found 1 h after the treatment when compared to that before it (p=0.011). There were no significant changes in other parameters. CONCLUSION:CO2 treatment can influence the autonomic nervous system identified by SDNN changes. However, larger studies are required to confirm these results. Copyright
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