ライフサイエンスコーパス: heart rate variability

1 poor recovery of fear-induced suppression of heart rate variability.

2 tinal fundus photography, and an analysis of heart rate variability.

3 M(10) exposure was inversely associated with heart rate variability.

4 n-invasive endothelial function studies, and heart rate variability.

5 on produced increased heart rate and reduced heart rate variability.

6 phenotypes similar to CNC, including altered heart rate variability.

7 val (995+/-45 to 670+/-35 ms), and abolished heart rate variability.

8 tic field exposure may affect heart rate and heart rate variability.

9 ronment, play an important role in long-term heart rate variability.

10 ose digoxin reduced heart rate and increased heart rate variability.

11 orry has also been associated with decreased heart rate variability.

12 and to assess their pattern and relation to heart rate variability.

13 ed cardiac autonomic function and changes in heart rate variability.

14 rrelated to an objective measure of emotion, heart rate variability.

15 ained ventricular arrhythmias, and increased heart rate variability.

16 een sedation levels in ICU patients based on heart rate variability.

17 of constipation, gastric emptying time, and heart rate variability.

18 ered cue-related insula activity and reduced heart rate variability.

19 rence in cardiac conduction, arrhythmias, or heart rate variability.

20 -users of antidepressants, on heart rate and heart rate variability.

21 mbulatory ECG monitoring for arrhythmias and heart rate variability.

22 ctivity measured by changes in instantaneous heart-rate variability.

23 , individual differences in autonomic state (heart rate variability, a proxy measure of autonomic bal

24 d relative power of a high frequency band of heart rate variability (adjusted odds ratio, 1.05; p < 0

25 leus predicted the magnitude of reduction in heart rate variability after induction.

26 entricular ejection fraction, lean mass, and heart rate variability (all p < 0.05 vs. control subject

27 ein) modify PM(2.5)-associated reductions in heart rate variability among 23 young male workers (mean

28 ar to aggravate particle-related declines in heart rate variability among workers.

29 Change in the high-frequency band of heart rate variability, an estimate of parasympathetic o

30 Previous research that used heart rate variability analysis alone to understand chan

31 Heart rate variability analysis data were analyzed by an

32 on 96-hr neurologic outcomes and survival by heart rate variability analysis in a pig model of prolon

33 Heart rate variability analysis revealed sympathetic pre

34 In this study we used heart rate variability analysis to determine the effect

35 Heart rate variability analysis was performed on 12 adol

36 vagal modulation by 8-15%, as determined by heart rate variability analysis, and decreased 24-h urin

37 A significant correlation between 4-hr heart rate variability and 96-hr cerebral performance ca

38 Patients with PAF had very low heart rate variability and a prolonged QTc at baseline (

39 Heart rate variability and ambient arrhythmia activity w

40 Continuous measurements of heart rate variability and baroreflex sensitivity in the

41 Using continuous measurements of heart rate variability and baroreflex sensitivity we aim

42 Analyses of heart rate variability and baroreflex sensitivity were u

43 Autonomic impairment, as measured by heart rate variability and baroreflex sensitivity, is si

44 used to study the autonomic nervous system--heart rate variability and baroreflex sensitivity--are r

45 us system function was assessed according to heart rate variability and baroreflex sensitivity.

46 Instantaneous (SD1) and long-term (SD2) heart rate variability and circadian rhythm analyzed via

47 Heart rate variability and dietary data were obtained be

48 to the stimulus, but there was no associated heart rate variability and no significant differences in

49 ormalized QT variance, and coherence between heart rate variability and QT variability have been meas

50 d its interruption on continuously monitored heart rate variability and respiratory rate variability

51 We aim to explore whether sedation reduces heart rate variability and respiratory rate variability

52 Mean heart rate variability and respiratory rate variability

53 Our results suggest that both heart rate variability and respiratory rate variability

54 lows for uncovering a greater restoration of heart rate variability and respiratory rate variability

55 However, the association of heart rate variability and the incidence of coronary hea

56 raphy revealed suppressed interictal resting heart-rate variability and episodes of ictal bradycardia

57 decrease in the high-frequency component of heart rate variability, and a 1.2% increase in QT durati

58 related with decreased resting HR, increased heart rate variability, and enhanced sensitivity to the

59 Using indices of heart rate variability, and high- and low-frequency powe

60 , urinary retention, dilated pupils, reduced heart rate variability, and impaired catecholamine respo

61 heir effects on cholesterol, blood pressure, heart rate variability, and inflammation.

62 Frequency of arrhythmias, heart rate variability, and markers of cardiac repolariz

63 influence cardiac autonomic tone and reduce heart rate variability, and may increase the risk of car

64 blunted poststress recovery in systolic BP, heart rate variability, and monocyte chemoattractant pro

65 ECG-MI, high QRS nondipolar voltage, reduced heart rate variability, and QT prolongation (in the card

66 Established clinical applications of heart rate variability are presently restricted to the a

67 tions between alpha7 level, vagally mediated heart rate variability as an indirect reflection of CAP

68 PM and the high-frequency (HF) component of heart rate variability as modified by the presence or ab

69 of the hypothalamic-pituitary-adrenal axis), heart rate variability (as a marker of the sympathovagal

70 dotoxin into human volunteers causes loss of heart rate variability, as measured by standard deviatio

71 beats per minute (P<.001) and a reduction in heart rate variability, as measured by the SD of all nor

72 al modes of electrocardiogram processing and heart rate variability assessment, 2) in physiologic und

73 zations; higher resting heart rate and lower heart rate variability associated with both outcomes.

74 Inverse PM(10)-heart rate variability associations were strongest for t

75 The normal increase in high-frequency heart rate variability at night was absent or blunted in

76 We analyzed heart rate and heart rate variability at rest and after pharmacological

77 gic investigations studied the components of heart rate variability attributable to the individual li

78 effects of air pollution on blood pressure, heart rate variability, blood lipids, and biomarkers of

79 lation of air pollutants affects heart rate, heart rate variability, blood pressure, vascular tone, b

80 In the CAD patients, LF and HF heart rate variability both correlated with average BFR

81 so prolonged QTc (to 463+/-7 ms) and reduced heart rate variability but did not significantly change

82 y-inventory, observer rating, coefficient of heart rate variability (C_HRV), and salivary cortisol.

83 sure to particulate air pollutants decreases heart rate variability, causes ST-segment depression and

84 tended to result in greater improvements in heart rate variability compared with placebo (p = 0.052)

85 tended to result in greater improvements in heart rate variability compared with sertraline (p = 0.0

86 Heart rate variability components were analyzed for the

87 In the clinic, heart rate variability continues to be a useful tool in

88 icrom in aerodynamic diameter in relation to heart rate variability, controlling for potential confou

89 lated pollutants on systolic blood pressure, heart rate variability, corrected QT interval, low densi

90 The two indices of heart rate variability correlated with an index of ocula

91 we investigate a possible mechanism by which heart rate variability could protect against cardiac arr

92 may parallel the association between reduced heart rate variability during normal activities and adve

93 The preserved heart rate variability during postresuscitation hypother

94 ion syndrome experienced greater increase in heart rate variability during sedation interruption (p <

95 nsula activity significantly correlated with heart rate variability during the task.

96 stiffness, low (LF)- and high (HF)-frequency heart rate variability, ECG monitoring, and the plasma m

97 al variations in the methionine cycle affect heart rate variability either independently or by modify

98 rdiovascular biomarkers included measures of heart rate variability, endothelial function, baroreflex

99 rosclerosis, oxidative stress, inflammation, heart rate variability, energy metabolism, and increased

100 data, consisting of an individual's labeled heart rate variability epochs from the preceding 24 hour

101 All patients underwent Holter ECG and heart rate variability evaluation at baseline and at 3,

102 ed TEN produced a significant suppression of heart rate variability, galvanic skin conductance, and s

103 Cardiac autonomic activity, as assessed by heart rate variability, has been found to be associated

104 None of the autonomic tests (heart rate variability, heart rate turbulence, barorefle

105 ocardiography measure of PNS (high frequency heart rate variability; HF-HRV).

106 metry), cardiac function (echocardiography), heart rate variability (Holter electrocardiography), bod

107 We analyzed trajectories of heart rate variability (HRV) 1 h before and after ischem

108 Conventional heart rate variability (HRV) analysis, and complexity in

109 equivalent (V(E)/V(O(2))), heart rate (HR), heart rate variability (HRV) and arterial haemoglobin sa

110 Although heart rate variability (HRV) and baroreflex sensitivity

111 Changes in heart rate variability (HRV) and baroreflex sensitivity

112 s late after the Fontan operation, employing heart rate variability (HRV) and baroreflex sensitivity.

113 mparing time and frequency domain changes in heart rate variability (HRV) and electrocardiographic re

114 ds for analyzing the interaction between the heart rate variability (HRV) and electroencephalography

115 the effects of VNS on metabolic parameters, heart rate variability (HRV) and LV function in obese-in

116 Frequency domain measures of heart rate variability (HRV) are associated with adverse

117 ion sample whether individuals with impaired heart rate variability (HRV) are at increased risk of de

118 Heart rate variability (HRV) as an indirect autonomic as

119 darone Trial (EMIAT) patients with depressed heart rate variability (HRV) benefit from amiodarone tre

120 Decreased heart rate variability (HRV) has been associated with fu

121 ic nervous system functioning as measured by heart rate variability (HRV) has been associated with po

122 Reduced heart rate variability (HRV) has been suggested as a pos

123 ssed left ventricular function (LVF) and low heart rate variability (HRV) identify patients at risk o

124 based on frequency-domain characteristics of heart rate variability (HRV) in 24-hour Holter recording

125 ined whether temperature was associated with heart rate variability (HRV) in a Boston, Massachusetts,

126 tes </=2.5 microm in diameter (PM(2.5)) with heart rate variability (HRV) in an occupational cohort (

127 Depression is associated with low heart rate variability (HRV) in patients following myoca

128 Decreased heart rate variability (HRV) is a major risk factor for

129 duced cardiac vagal control reflected in low heart rate variability (HRV) is associated with greater

130 Heart rate variability (HRV) measured by power spectral

131 UK-HEART examined the value of heart rate variability (HRV) measures as independent pre

132 heart rate and the clinical utility of 24-hr heart rate variability (HRV) monitoring.

133 icating that the latter adequately contained heart rate variability (HRV) oscillations.

134 r effects on the normal range of time domain heart rate variability (HRV) over nine decades in health

135 Heart rate variability (HRV) predicts cardiac death and

136 Indices of heart rate variability (HRV) provide a window onto auton

137 Heart rate variability (HRV) provides indices of autonom

138 was obtained from power spectral analysis of heart rate variability (HRV) recordings.

139 Abnormal heart rate variability (HRV) reflects autonomic dysfunct

140 The correlation of healthy states with heart rate variability (HRV) using time series analyses

141 Heart rate variability (HRV) was assessed through time d

142 Heart rate variability (HRV) was examined in 50 patients

143 Five-minute segments of heart rate variability (HRV) were studied using linear r

144 Five-minute recordings of heart rate variability (HRV) were used to assess cardiac

145 ure, we measured resting heart rate (HR) and heart rate variability (HRV) with electrocardiogram, and

146 influence (cardiorespiratory interaction) on heart rate variability (HRV) with heartbeats increasing

147 uence of disinhibited eating and vagal tone (heart rate variability (HRV)) on hunger and the postpran

148 data exist on the prospective association of heart rate variability (HRV), a marker of autonomic func

149 at trauma exposure are associated with lower heart rate variability (HRV), a measure of autonomic fun

150 Decreased heart rate variability (HRV), also a predictor of mortal

151 We hypothesized that heart rate variability (HRV), an indicator of cardiac sy

152 n ANS activity during waking, as measured by heart rate variability (HRV), have been correlated with

153 art rhythm complexity analysis, derived from heart rate variability (HRV), is a powerful tool to quan

154 te much recent interest in quantification of heart rate variability (HRV), the prognostic value of co

155 onomic balance with standing, as measured by heart rate variability (HRV), were prospectively associa

156 However, whether low heart rate or heart rate variability (HRV), which are noninvasive meas

157 its substantial variations in time, known as heart rate variability (HRV), which introduces deviation

158 f waveforms, power spectra and variations in heart rate variability (HRV)--all of which are important

159 n a deterministic rhythm due to the inherent heart rate variability (HRV).

160 uld be associated with beneficial changes in heart rate variability (HRV).

161 pathetic stimulation has variable effects on heart rate variability (HRV).

162 change the conventional spectral indices of heart rate variability (HRV).

163 tachycardia (VT) as reflected in indices of heart rate variability (HRV).

164 polycyclic aromatic hydrocarbons (PAHs) and heart rate variability (HRV).

165 e circadian variation in heart rate (HR) and heart rate variability (HRV).

166 der men was associated with reduced baseline heart rate variability (HRV, P<0.05); the change in hear

167 ink to health outcomes has been reported for heart-rate variability (HRV), a marker of physiological

168 We tested whether resting heart-rate variability (HRV), a physiological indicator

169 eased cardiovascular mortality and decreased heart-rate variability (HRV).

170 en), autonomic balance (spectral analysis of heart rate variability [HRV]), and baroreflex sensitivit

171 We measured resting heart rate and heart rate variability in 13,241 adults (45- to 64-years

172 or = 2.5 microm in aerodynamic diameter and heart rate variability in 518 older men from the Normati

173 The authors investigated heart rate and heart rate variability in a large cohort from Brazil, us

174 homeostasis modifies the effect of PM(10) on heart rate variability in a stratified, random sample of

175 latter may be a surrogate marker of abnormal heart rate variability in CAD.

176 rdial ischaemia and enables the recording of heart rate variability in non-resting conditions.

177 decrease in the high-frequency component of heart rate variability in persons with the wild-type gen

178 PM(2.5) was negatively associated with heart rate variability in subjects with lower intakes, b

179 , several studies have advanced the field of heart rate variability in three areas: 1) in technical m

180 ement of parasympathetic autonomic function (heart rate variability) in 19 patients with GAD and 21 c

181 ously shown that cardiac uncoupling (reduced heart rate variability) in the first 24 hours of trauma

182 was assessed using noninvasive techniques of heart rate variability; in particular, time domain analy

183 0001) and the ratio of low-to-high frequency heart rate variability increased (0.24; 95% CI: 0.07, 0.

184 93 +/- 10 vs. 96 +/- 10 mmHg, p = 0.025) and heart rate variability increased (high-frequency power:

185 Heart rate variability index was < or =20 U in 363 (29.9

186 A heart rate variability index, reflecting sympathetic and

187 thetic activation (plasma catecholamines and heart rate variability indexes; all P<0.05).

188 high-frequency band in spectral analysis of heart rate variability indicated a better preserved vaga

189 panied by an increase in peak high frequency heart rate variability, indicating an increase in parasy

190 They calculated 5-minute heart rate variability indices and used logarithmically

191 Heart rate variability indices in the frequency domain i

192 Heart rate variability indices reduced significantly aft

193 Heart rate variability indices were determined over 5 an

194 ography, cardiac autonomic reflex tests, and heart rate variability indices were performed in 55 pati

195 Heart rate variability indices were severely diminished:

196 Mean values of baroreflex sensitivity, heart rate variability, intracranial pressure, arterial

197 Heart rate variability is a recognized tool for the esti

198 Depressed heart rate variability is a well-established risk factor

199 demiologic evidence indicates that depressed heart rate variability is associated with reduced surviv

200 Cardiac function, such as heart rate variability, is abnormal in coronary artery d

201 ognostic tool, it is unclear whether reduced heart rate variability itself is proarrhythmic or if it

202 roreflex sensitivity, heart rate turbulence, heart rate variability, left ventricular end-diastolic d

203 6 +/- 0.2 vs. 0.2 +/- 0.1 low/high frequency heart rate variability (LF/HFHRV )] and cardiac arrhythm

204 ensitivity), short-term spectral analysis of heart rate variability (low frequency/high frequency), a

205 ith increased basal heart rate and decreased heart rate variability (markers of low cholinergic/vagus

206 Spectral analysis of heart rate variability may allow for insights into the p

207 odynamic diameter during the 48 hours before heart rate variability measurement was associated with a

208 Heart rate variability measurements and gastric emptying

209 tropy occurred earlier than changes in other heart rate variability measures and may be a useful mean

210 the probability of each sedation level from heart rate variability measures derived from the electro

211 Heart rate variability measures remained significantly d

212 omic dysfunction as assessed using overnight heart rate variability measures.

213 parasympathetic function, using time-domain heart rate variability measures.

214 Nevertheless, recent studies indicate that heart rate variability might soon become a similarly pow

215 Heart rate variability monitoring has also been suggeste

216 Heart rate variability monitoring is becoming more commo

217 xic and hypercapnic chemosensitivity (n=38), heart rate variability (n=34), baroreflex sensitivity (n

218 Autonomic function was studied by assessing heart rate variability on 24-h Holter monitoring and pla

219 ecordings as the high-frequency component of heart rate variability or as the variability of RR inter

220 e digoxin produced no additional increase in heart rate variability or reduction in sympathetic activ

221 mal autonomics (high night heart rate or low heart rate variability), or notable device therapy (low

222 er arterial stiffness (P = 0.005), LF and HF heart rate variability (P = 0.004, P = 0.006), and vWf l

223 tivity, depressed low-frequency component of heart rate variability (P<0.0001) and baroreflex sensiti

224 underlying respiratory activity (P<0.001) or heart-rate variability (P=0.002).

225 point was the change in alpha1, a nonlinear heart rate variability parameter, between baseline and 1

226 After ablation, heart rate variability parameters showed a significant p

227 g heart beat cycle length (6%), next-morning heart rate variability parameters, and ectopic beats thr

228 There were no differences in heart rate variability parameters.

229 The low-frequency and high-frequency heart rate variability power declined before the arrhyth

230 Individual differences in heart rate variability predicted magnitude of differenti

231 Increased QTVI because of depressed heart rate variability predicts cardiovascular mortality

232 Although measurements of heart rate variability provide a valuable prognostic too

233 d peripheral autonomic measures (heart rate, heart rate variability, pupil diameter, electrodermal ac

234 Decreased heart rate variability rather than increased QT variabil

235 Low frequency/high frequency heart rate variability ratio was similarly increased in

236 Heart rate variability recovery is impaired in depressed

237 f autonomic activity, we described increased heart rate variability reflecting increased Lfa and to a

238 tern of this variability and its relation to heart rate variability remain poorly characterized.

239 traffic-related responses on blood pressure, heart rate variability, repolarization, lipids, and infl

240 mediators of inflammation and reductions in heart rate variability, returning toward baseline levels

241 vation (noradrenaline, rho = 0.26, P = 0.05; heart rate variability, rho = -0.43, P = 0.003), and tre

242 ], p = 0.647) but was associated with higher heart rate variability (SD of normal-to-normal RR interv

243 ferred: signal-averaged electrocardiography; heart rate variability; severe ventricular arrhythmia on

244 spontaneous heart rate and markedly greater heart rate variability, similar to sick-sinus syndrome i

245 these roles, EHD3-deficient mice demonstrate heart rate variability, sinus pause, and atrioventricula

246 o 10 mg/min IV) while monitoring heart rate, heart rate variability spectra, QT interval, and blood p

247 Electrocardiograms revealed decreased total heart rate variability, stress-induced arrhythmia, and i

248 he asymmetric barrier induced a reduction in heart rate variability, suggesting that this is a more d

249 vary cortisol (hypothalamic pituitary axis), heart rate variability (sympathetic adrenal medullary sy

250 provides a more precise characterization of heart rate variability that can be employed in conjuncti

251 lone had no significant effect on changes in heart rate variability, the time-domain signal-averaged

252 Heart rate variability, though related to heart rate, as

253 A mathematical model allowed heart rate variability to be partitioned into a componen

254 r hrs after resuscitation, mean RR interval, heart rate variability triangular index, and normalized

255 he final 5 min of each bout was analysed for heart rate variability using fast fourier transformation

256 Heart rate variability was assessed from prerandomizatio

257 Heart rate variability was assessed with the Fourier tra

258 Time and frequency domain heart rate variability was calculated in 5-min sections

259 velopment of POAF, total hospital costs, and heart rate variability was compared between groups.

260 The baroreflex was reset in the KO, and heart rate variability was decreased.

261 Heart rate variability was measured by 24-hour ambulator

262 2.5 mum in aerodynamic diameter (PM(2.5)) on heart rate variability was modified by dietary intakes o

263 art rate and cycle length were constant, and heart rate variability was small under control condition

264 Heart rate, blood pressure, and heart rate variability were assessed every 30 min and co

265 ce and low frequency/high frequency ratio of heart rate variability were assessed using ECG and blood

266 ntervals and the high frequency component of heart rate variability were greater during sleep.

267 Markers of heart rate variability were markedly impaired in CRC pat

268 Average RR, QT, QTc and heart rate variability were measured from 5-min segments

269 Frequency domain analyses of heart rate variability were performed automatically ever

270 Blood pressure and heart rate variability were registered at day 5 post-MI.

271 ity, plasma norepinephrine, epinephrine, and heart rate variability, were measured.

272 function, which were reflected by decreased heart rate variability, were significantly reduced by nN

273 the autonomous nervous system, as indexed by heart-rate variability, were correlated in a complex man

274 ho failed to mount a significant increase in heart rate variability when sedation was stopped.

275 ffects on heart rate or rhythm or indexes of heart rate variability, whereas patients treated with no

276 emonstrated an increase in contractility and heart rate variability with digitalis preparations.