An evaluation of heart rate variability and its modifying factors in children with type 1 diabetes

2013 ◽  
Vol 24 (5) ◽  
pp. 872-879 ◽  
Author(s):  
Senem Özgür ◽  
Özben Ceylan ◽  
Filiz Şenocak ◽  
Utku A. Örün ◽  
Vehbi Doğan ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Type 1 Diabetes ◽  
Low Frequency ◽  
Healthy Control Group ◽  
Control Group ◽  
Haemoglobin A1c ◽  
Very Low Frequency ◽  
Healthy Control

AbstractObjective: To evaluate heart rate variability by Holter monitoring in type 1 diabetic children compared with a healthy control group and determine the factors modifying heart rate variability. Methods: This was designed as a prospective study comparing 28 patients, diagnosed with type 1 diabetes and under follow-up, with 27 healthy control group subjects. Results: The patients were aged 9.9 ± 4.2 years in the diabetic group, including 13 (46.5%) girls and 15 (53.5%) boys. The healthy control group comprised 20 (74%) girls and seven boys (26%) with an average age of 8.6 ± 3.7 years. The search for factors modifying heart rate variability yielded the following correlations: for the time-dependent variables, negative between age and both average and maximal heart rate (r = −0.263 and −0.460, respectively), negative between haemoglobin A1c and percentage of differences between adjacent RR intervals >50 ms, positive between diabetes duration and square root of the mean of the sum of squares of differences between adjacent NN intervals. The average heart rate and percentage of differences between adjacent RR intervals >50 ms was significantly higher in the girls than the boys in all groups. With regard to the frequency-dependent factors affecting heart rate variability, correlations were found between haemoglobin A1c level and both total power and very low frequency (r = −0.751 and −0.644) and between very low frequency and diabetes duration. Conclusion: A reduction in heart rate variability parameters was observed in type 1 diabetes mellitus patients who had a long disease duration or were poorly controlled, as compared with healthy controls.

scholarly journals The Influence of Glycemic Control on Heart Rate Variability and Blood Pressure in Adult Patients with the Type 1 Diabetes

2018 ◽  
Vol 25 (1) ◽  
pp. 67-75
Author(s):  
Nataliia Pertseva ◽  
Iryna Tyshchenko ◽  
Kateryna Moshenets
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Type 1 Diabetes ◽  
Glycemic Control ◽  
Diastolic Pressure ◽  
Low Frequency ◽  
Rr Intervals ◽  
Area Index

AbstractBackground and aims: to identify heart rate variability (HRV) and blood pressure (BP) in patients with type 1 diabetes depending on the duration of disease and glycemic control.Materials and methods: 43 patients were examined. All patients were divided into 2 groups according to the level of НвА1с: group 1 (n=21) with НвА1с ≤ 7.5% and group 2 (n=22) with НвА1с > of 7.5%. All patients underwent daily monitoring of electrocardiogram Holter and ambulatory BP monitoring within 24 hours in parallel with long term monitoring of blood glucose.Results: Hyppoglycemia is characterized by significant decrease root mean square difference between adjacent RR intervals (RMSSD) (r = −0.531; p = 0.003) and number of consecutive RR intervals, the difference between them is more than 50 ms expressed as a percentage of total number of RR-intervals (pNN50%) (r = the −0.503; p = 0.005) and increase of Low Frequency/High Frequency Ratio (LF/HF) (r = 0552; p = 0.002). Patients with hypoglycemia had significantly higher daily diastolic pressure area index (DPAI24) (p = 0.016), and daily diastolic pressure time index DPTI24 (p = 0.025).Conclusion: our findings demonstrate the need to reduce the frequency of hypoglycemia episodes in patients with T1DM.

Heart rate variability and circadian variations in type 1 diabetes mellitus

2006 ◽  
Vol 7 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Firat Kardelen ◽  
Gayaz Akcurin ◽  
Halil Ertug ◽  
Sema Akcurin ◽  
Iffet Bircan
Keyword(s):  
Diabetes Mellitus ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Type 1 Diabetes ◽  
Type 1 Diabetes Mellitus ◽  
Circadian Variations

scholarly journals Effect of Acupuncture on Heart Rate Variability: A Systematic Review

2014 ◽  
Vol 2014 ◽  
pp. 1-19 ◽  
Author(s):  
Joanne W. Y. Chung ◽  
Vincent C. M. Yan ◽  
Hongwei Zhang
Keyword(s):  
Systematic Review ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
High Frequency ◽  
Healthy Subjects ◽  
Keyword Search ◽  
Data Extraction ◽  
Meta Analysis ◽  
Low Frequency ◽  
Control Group

Aim.To summarize all relevant trials and critically evaluate the effect of acupuncture on heart rate variability (HRV).Method.This was a systematic review with meta-analysis. Keyword search was conducted in 7 databases for randomized controlled trials (RCTs). Data extraction and risk of bias were done.Results.Fourteen included studies showed a decreasing effect of acupuncture on low frequency (LF) and low frequency to high frequency ratio (LF/HF ratio) of HRV for nonhealthy subjects and on normalized low frequency (LF norm) for healthy subjects. The overall effect was in favour of the sham/control group for high frequency (HF) in nonhealthy subjects and for normalized high frequency (HF norm) in healthy subjects. Significant decreasing effect on HF and LF/HF ratio of HRV when acupuncture was performed on ST36 among healthy subjects and PC6 among both healthy and nonhealthy subjects, respectively.Discussion.This study partially supports the possible effect of acupuncture in modulating the LF of HRV in both healthy and nonhealthy subjects, while previous review reported that acupuncture did not have any convincing effect on HRV in healthy subjects. More published work is needed in this area to determine if HRV can be an indicator of the therapeutic effect of acupuncture.

scholarly journals Rapid glucose rise reduces heart rate variability in adults with type 1 diabetes: A prospective secondary outcome analysis

2021 ◽  
Author(s):  
Max L. Eckstein ◽  
Othmar Moser ◽  
Norbert J. Tripolt ◽  
Peter N. Pferschy ◽  
Anna A. M. Obermayer ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Type 1 Diabetes ◽  
Secondary Outcome ◽  
Outcome Analysis

scholarly journals Effects of Metformin Added to Insulin in Adolescents with Type 1 Diabetes: An Exploratory Crossover Randomized Trial

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Daizhi Yang ◽  
Jinhua Yan ◽  
Hongrong Deng ◽  
Xubin Yang ◽  
Sihui Luo ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Type 1 Diabetes ◽  
Insulin Sensitivity ◽  
Body Mass ◽  
Autonomic Function ◽  
Insulin Dose ◽  
Glucose Variability

Background. To comprehensively assess the effects of metformin added to insulin on metabolic control, insulin sensitivity, and cardiovascular autonomic function in adolescents with type 1 diabetes. Materials and Methods. This was an exploratory, crossover, randomized trial conducted in adolescents with type 1 diabetes aged 12-18 years old. Participants were randomly received metformin (≤1000 mg/d) added to insulin for 24 weeks followed by insulin monotherapy for a subsequent 24 weeks or vice versa. Blood pressure, body mass index, insulin dose, estimated insulin sensitivity, glycated hemoglobin A1c (HbA1c), and lipid profiles were measured, with a 72-hour continuous glucose monitoring and 24-hour Holter monitoring performed at baseline, 24, and 50 weeks for the assessments of glucose variability and heart rate variability. Results. Seventeen patients with mean ± SD age 14.4 ± 2.3   years , body mass index 18.17 ± 1.81   kg / m 2 , median (IQR) diabetes duration 4.50 (3.58, 6.92) years, and HbA1c 9.0% (8.5%, 9.4%) were enrolled. The between-group difference in HbA1c of 0.28% (95% CI -0.39 to 0.95%) was not significant ( P = 0.40 ). Changes in body mass index, insulin dose, blood pressure, lipid profiles, and estimated insulin sensitivity were similar for metformin add-on vs. insulin monotherapy. Glucose variability also did not differ. Compared with insulin monotherapy, metformin add-on significantly increased multiple heart rate variability parameters. Conclusions. Metformin added to insulin did not improve metabolic control or glucose variability in lean/normal-weight adolescents with type 1 diabetes. However, metformin added to insulin significantly increased heart rate variability, suggesting that metformin might improve cardiovascular autonomic function in this population.

scholarly journals Augmented Very Low Frequency Component of Heart Rate Variability During Obstructive Sleep Apnea

SLEEP ◽  
1996 ◽  
Vol 19 (5) ◽  
pp. 370-377 ◽  
Author(s):  
Toshiaki Shiomi ◽  
Christian Guilleminault ◽  
Ryujiro Sasanabe ◽  
Izumi Hirota ◽  
Masato Maekawa ◽  
...  
Keyword(s):  
Heart Rate ◽  
Obstructive Sleep Apnea ◽  
Heart Rate Variability ◽  
Sleep Apnea ◽  
Low Frequency ◽  
Frequency Component ◽  
Very Low Frequency ◽  
Obstructive Sleep
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