scholarly journals Heart rate variability biofeedback in patients with alcohol dependence: a randomized controlled study

2015 ◽  
pp. 2619 ◽  
Author(s):  
Ana Isabel Penzlin ◽  
Timo Siepmann ◽  
Ben Min-Woo Illigens ◽  
Kerstin Weidner ◽  
Martin Siepmann
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Alcohol Dependence ◽  
Randomized Controlled Study ◽  
Controlled Study ◽  
Heart Rate Variability Biofeedback ◽  
Randomized Controlled

scholarly journals Optimal Continuous Positive Airway Pressure Treatment of Obstructive Sleep Apnea Reduces Daytime Resting Heart Rate in Prediabetes: A Randomized Controlled Study

2020 ◽  
Vol 9 (19) ◽  
Author(s):  
Sushmita Pamidi ◽  
Florian Chapotot ◽  
Kristen Wroblewski ◽  
Harry Whitmore ◽  
Tamar Polonsky ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Heart Rate ◽  
Obstructive Sleep Apnea ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Randomized Controlled Study ◽  
Controlled Study ◽  
Resting Heart Rate ◽  
Randomized Controlled ◽  
Obstructive Sleep

Background It has been widely recognized that obstructive sleep apnea (OSA) is linked to cardiovascular disease. Yet, randomized controlled studies failed to demonstrate a clear cardiovascular benefit from OSA treatment, mainly because of poor adherence to continuous positive airway pressure (CPAP). To date, no prior study has assessed the effect of CPAP treatment on daytime resting heart rate, a strong predictor of adverse cardiovascular outcomes and mortality. Methods and Results We conducted a randomized controlled study in 39 participants with OSA and prediabetes, who received either in‐laboratory all‐night (ie, optimal) CPAP or an oral placebo for 2 weeks. During daytime, participants continued daily activities outside the laboratory. Resting heart rate was continuously assessed over 19 consecutive days and nights using an ambulatory device consisting of a single‐lead ECG and triaxis accelerometer. Compared with placebo, CPAP reduced daytime resting heart rate (treatment difference, −4.1 beats/min; 95% CI, −6.5 to −1.7 beats/min; P =0.002). The magnitude of reduction in daytime resting heart rate after treatment significantly correlated with the magnitude of decrease in plasma norepinephrine, a marker of sympathetic activity ( r =0.44; P =0.02), and the magnitude of decrease in OSA severity (ie, apnea‐hypopnea index [ r =0.48; P =0.005], oxygen desaturation index [ r =0.50; P =0.003], and microarousal index [ r =0.57; P <0.001]). Conclusions This proof‐of‐concept randomized controlled study demonstrates, for the first time, that CPAP treatment, when optimally used at night, reduces resting heart rate during the day, and therefore has positive cardiovascular carry over effects. These findings suggest that better identification and treatment of OSA may have important clinical implications for cardiovascular disease prevention. Registration URL: https:/// www.clini​caltr​ials.gov ; Unique identifier: NCT01156116.

Sign in / Sign up

Export Citation Format

Share Document