ライフサイエンスコーパス: atrial pacing

1 trogram characteristics were analyzed during atrial pacing.

2 died and subjected to 5 hours of rapid right atrial pacing.

3 of sustained AF produced by prolonged right atrial pacing.

4 was created by six weeks of continuous rapid atrial pacing.

5 racellular Na+ concentration following rapid atrial pacing.

6 costeroids, mucolytics, bronchodilators, and atrial pacing.

7 0.003) in patients assigned to postoperative atrial pacing.

8 l activation may be demonstrated during left atrial pacing.

9 illation was induced and maintained by rapid atrial pacing.

10 AF was then induced by rapid right atrial pacing.

11 during multiple loading conditions and right atrial pacing.

12 tiarrhythmic drug therapies during dual-site atrial pacing.

13 ardial gene painting; the AF group had burst atrial pacing.

14 vention of AF is enhanced by dual-site right atrial pacing.

15 chieved in 86% of patients during dual right atrial pacing.

16 e (TA-ER isthmus) and one by rapid overdrive atrial pacing.

17 rval with administration of adenosine during atrial pacing.

18 flutter and could be tested after dual-site atrial pacing.

19 given incremental doses of adenosine during atrial pacing.

20 pacing compared with single-site high right atrial pacing.

21 laxation (Tau), respectively, to incremental atrial pacing.

22 me points during and after incremental rapid atrial pacing.

23 onsumption increased (P = 0.04) from rest to atrial pacing.

24 yocardial uptake also increased from rest to atrial pacing.

25 trial fibrillation (AF) was induced by rapid atrial pacing.

26 entricular pacing but synchronous with right atrial pacing.

27 Sustained AF was induced by rapid atrial pacing.

28 itions may be achieved by either exercise or atrial pacing.

29 which are usually achieved with exercise or atrial pacing.

30 hm (120 +/- 12 ms, p = 0.005) and high right atrial pacing (121 +/- 17 ms, p = 0.005).

31 entage of whole body lactate disposal during atrial pacing (15.0 +/- 4.4%) compared to rest (4.9 +/-

32 left bundle-branch ablation and either right atrial pacing (190 to 200 bpm) for 6 weeks (DHF) or 3 we

33 atients) and in 5 channels identified during atrial pacing (2 patients).

34 erwent left-bundle branch ablation and right atrial pacing (200 beats/min) for 6 weeks (DHF) or 3 wee

35 ed by left atrial pacing compared with right atrial pacing (21.6 +/- 9.1 versus 32.4 +/- 15.1 ms, res

36 omly assigned to each of 5 groups: (1) rapid atrial pacing (240 bpm) for 3 weeks (n=9), (2) ACEI (ben

37 omly assigned to each of 5 groups: (1) rapid atrial pacing (240 bpm) for 3 weeks (n=9), (2) concomita

38 ly assigned to one of five groups: (1) rapid atrial pacing (240 bpm) for 3 weeks (n=9), (2) concomita

39 ifferent during CS pacing compared with left atrial pacing (41+/-16 versus 33+/-17 ms), the total rig

40 Fast-rate right atrial pacing (600 bpm) was used to induce and maintain

41 rence (89%) as compared to single-site right atrial pacing (62%, p = 0.02).

42 ng reduced LVdP/dtmax compared with baseline atrial pacing (-7.1 +/- 4.1% and -6.9 +/- 4.3%, respecti

43 d fractional extraction (rest: 9.1 +/- 2.7%, atrial pacing 9.8 +/- 2.9%).

44 trated between APD and AT at any time during atrial pacing (all P > .05).

45 persion of repolarization compared with left atrial pacing (all P > .05).

46 /-110 days (p < 0.0001) in single-site right atrial pacing and 195+/-96 days in dual-site right atria

47 High right atrial pacing and coronary sinus ostial pacing had simil

48 AF) or atrial flutter induced by single-site atrial pacing and correlated its efficacy with clinical

49 Reconstructions were performed during right atrial pacing and nine cycles of VT.

50 d propranolol were measured before and after atrial pacing and RFCA.

51 in atrial tachyarrhythmia burden with use of atrial pacing and shock therapies.

52 asing lactate at rest which increases during atrial pacing, and (2) when arterial substrate delivery

53 ecorded during spontaneous rhythm, overdrive atrial pacing, and AF/AFL induced by acetylcholine (ACh;

54 ransfer and pacemaker implantation for burst atrial pacing, animals were evaluated daily for cardiac

55 dy was to assess simultaneous right and left atrial pacing as prophylaxis for postoperative atrial fi

56 l patients had TWA measured at baseline with atrial pacing at 100 bpm (600 ms), 109 bpm (550 ms), and

57 at 600 bpm for 1 week, whereas controls had atrial pacing at 100 bpm.

58 A control group (n = 8) underwent atrial pacing at 120 beats/min.

59 Chronotropic stimulation was induced with atrial pacing at 130 minutes(-1) (n=5) whereas inotropic

60 cending coronary artery occlusion with right atrial pacing at 150 bpm.

61 ns during normal sinus rhythm and fixed-rate atrial pacing at 17.2+/-1.8 (SEM) beats per minute great

62 five additional normal anesthetized canines, atrial pacing at 180 beats/min did not increase T-wave a

63 ry drug infusion in sinus rhythm followed by atrial pacing at 20, 40, and 60 beats per minute above t

64 -chamber pacing at 70 bpm) or backup pacing (atrial pacing at 30 bpm).

65 2 +/- 13 versus 76.8 +/- 8 ms, P < 0.01) and atrial pacing at 400 ms (102 +/- 13 versus 91 +/- 9 ms,

66 nt open heart surgery were assigned to right atrial pacing at 45 bpm (RA-AAI; n=39), right atrial tri

67 In pigs, AF was produced with rapid atrial pacing at 600 bpm for 1 week, whereas controls ha

68 , atrial fibrillation was simulated by right atrial pacing at 600 bpm over 5 hours.

69 Six dogs (paced group) underwent atrial pacing at 600 bpm; 9 dogs (control animals) were

70 and propranolol, and subjected to 7 hours of atrial pacing at 800 bpm.

71 y sinus blood flow were made during rest and atrial pacing at approximately 111 beats min(-1).

72 general anesthesia, AF was induced by burst atrial pacing at baseline and after 1 h of LLTS or sham

73 During atrial pacing at cycle lengths of 300 to 700 ms, a total

74 tients with dual AV node pathway physiology, atrial pacing at three chosen drive cycle lengths (DCL1,

75 cation for pacing, were randomly assigned to atrial pacing (at 70 beats/min) versus minimal ventricul

76 1.02+/-0.07 mL/min per g; P<0.05) and during atrial pacing (baseline, 0.82+/-0.11; enalaprilat, 0.98+

77 l mapping during sinus rhythm, exercise, and atrial pacing, before and after serum potassium increase

78 ion of atrial tachyarrhythmia with dual-site atrial pacing compared with patients without suppression

79 atrial repolarization was minimized by left atrial pacing compared with right atrial pacing (21.6 +/

80 ght atrium remained unchanged with dual-site atrial pacing compared with single-site high right atria

81 Nine pig hearts were Langendorff-perfused (atrial pacing, cycle length 650 ms).

82 Atrial pacing did not change peak transducer tension or

83 uction was then attempted during a dual-site atrial pacing drive train.

84 Rapid atrial pacing eventually controlled the arrhythmia.

85 0 bpm) for 6 weeks (DHF) or 3 weeks of right atrial pacing followed by 3 weeks of resynchronization b

86 up 2 dogs (N=6) underwent intermittent rapid atrial pacing followed by active or sham LL-VNS on alter

87 AF was maintained in 6 goats by burst atrial pacing for 3 consecutive 4-week periods separated

88 Nine dogs were conditioned with rapid atrial pacing for 48 h.

89 n was tested in distal segments: incremental atrial pacing for endothelium-dependent cases; and intra

90 Rapid atrial pacing for long time periods induced sustained AF

91 lity, safety and efficacy of multisite right atrial pacing for prevention of atrial fibrillation (AF)

92 Multisite atrial pacing for the prevention of atrial fibrillation

93 ll established, the efficacy of device-based atrial pacing for treating spontaneous atrial tachyarrhy

94 Data were also obtained during incremental atrial pacing from 110 to 210 bpm.

95 quency data were obtained during incremental atrial pacing from 120 to 180 bpm.

96 Dual-site right atrial pacing from the high right atrium and coronary si

97 In addition to standard atrial pacing from the high right atrium, pacing from no

98 Chronic rapid atrial pacing (group 2) increased the expression of Cx43

99 recurrent AF with long-term dual-site right atrial pacing has been demonstrated in our previous stud

100 The role of atrial pacing has been extensively examined in a large n

101 e AVN, AF was simulated by random high right atrial pacing in 11 atrial-AVN rabbit heart preparations

102 d atrial fibrillation was induced with rapid atrial pacing in 12 adult sheep.

103 The AF was induced by burst atrial pacing in 14 patients (AF group).

104 s in 13 patients, focal AT in 1 patient, and atrial pacing in 2 patients without stable AT.

105 We performed rapid right atrial pacing in 6 dogs for 111+/-76 days to induce sust

106 ECGI with co-registered CARTO images during atrial pacing in 6 patients.

107 applied a novel technique of dual-site right atrial pacing in an unselected group of consecutive pati

108 Atrial pacing in combination with antiarrhythmic drugs e

109 myocardial ischaemia induced by incremental atrial pacing in patients with coronary artery disease c

110 LV function and the response to incremental atrial pacing in patients with dilated cardiomyopathy (n

111 acy and safety evaluation of dual-site right atrial pacing in patients with drug-refractory atrial fi

112 nd 4) atrial tachycardia simulated by demand atrial pacing in patients with inducible atrioventricula

113 eterization was performed at rest and during atrial pacing in patients with mild IPAH (n = 10) compar

114 After a week of AF induced by rapid atrial pacing in pigs, O2*- production from acutely isol

115 lutter elicited after single-site high right atrial pacing in selected patients.

116 ing rest and increased heart work induced by atrial pacing in seven healthy men and women (age, 49.7

117 ial fibrillation (AF); and 2) the ability of atrial pacing in single- and dual-site modes to increase

118 re and after the lesions was assessed during atrial pacing in sinus rhythm from the medial and latera

119 oup 2 = radiofrequency energy applied during atrial pacing in sinus rhythm from the proximal coronary

120 fter which further energy was applied during atrial pacing in sinus rhythm until isthmus conduction b

121 Atrial pacing in the presence of mANP induced arrhythmia

122 this study was to determine the efficacy of atrial pacing in the prevention of atrial fibrillation f

123 f atrial repolarization is minimized by left atrial pacing in this preparation with no further advant

124 Postoperative atrial pacing, in conjunction with beta-blockade, signif

125 Rapid atrial pacing induced 26 episodes of focal discharge fro

126 At follow-up, atrial pacing induced vasoconstriction, whereas nitrogly

127 Rapid atrial pacing-induced AF reversibly shortened AERP (P<0.

128 right ventricle during AF (RA-irregular) and atrial pacing inhibited by atrial sensing mode at a rate

129 rpose of this study was to determine whether atrial pacing is a safe alternative to minimal (backup-o

130 Transesophageal atrial pacing is an effective method of increasing heart

131 he purpose of this study was to determine if atrial pacing is effective in reducing postoperative atr

132 We conclude that multisite right atrial pacing is feasible, effective and safe for long-t

133 Dual-site right atrial pacing is safe, achieves long-term rhythm control

134 ax) and aortic pulse pressure) compared with atrial pacing-LBBB, and this improvement correlated with

135 AVNS was delivered via a right atrial pacing lead positioned in the posterior right atr

136 The MCS included 2589 patients with Accufix atrial pacing leads that were implanted at or who were f

137 istration of small doses of adenosine during atrial pacing led consistently to transient block of imp

138 RR interval during atrial fibrillation/rapid atrial pacing</=250 ms (or antegrade effective refractor

139 Isolated rapid atrial pacing (LV ejection fraction approximately 60%) d

140 Atrial pacing may be considered a "safe alternative" whe

141 Dual-site right atrial pacing may offer additional benefits and should b

142 Single-site or multisite atrial pacing may reduce the incidence of atrial fibrill

143 Long-term rapid atrial pacing may result in atrial fibrillation (AF) in

144 le pericarditis model (n = 10) and the rapid atrial pacing model (400 beats/min for 6 weeks, n = 6).

145 inear atrial lesions to ablate AF in a rapid atrial pacing model in 29 dogs.

146 ed was the efficacy of two single-site right atrial pacing modes (high right atrium and coronary sinu

147 used to evaluate single- and dual-site right atrial pacing modes.

148 pacing alone (n = 4) or VVI pacing and rapid atrial pacing (n = 11).

149 ), either spontaneously (n = 36) or by rapid atrial pacing (n = 50), with AFL being typical in the ma

150 tion (n=7) and human studies involving fixed atrial pacing (n=10), passive head-up tilt testing (n=11

151 ned from dogs with AF induced by rapid right atrial pacing (n=6 for left atrial, n=4 for right atrial

152 ) were randomized to one of three groups: no atrial pacing (NAP), right atrial pacing (RAP) or biatri

153 With transesophageal atrial pacing, no significant differences were observed

154 The effect of atrial pacing on event-free survival and quality of life

155 red at a fixed rate after at least 1 week of atrial pacing only (baseline), during short-term (2 h) a

156 and decreased QRS duration as compared with atrial pacing or sinus rhythm.

157 =15) patients at rest and during incremental atrial pacing or supine bicycle ergometry.

158 40; 95 percent CI, 1.04-1.89); postoperative atrial pacing (OR, 1.27; 95 percent CI, 1.00-1.62); and

159 15.6 pg/ml 60 min after termination of rapid atrial pacing (p < 0.0001), changes that were mirrored a

160 pacing and 195+/-96 days in dual-site right atrial pacing (p < 0.005 versus single-site pacing and p

161 which increased significantly from rest and atrial pacing (P < 0.05).

162 sted for age, sex, lower rate limit, percent atrial pacing, percent biventricular pacing, and implant

163 (1) at baseline, (2) at 10 and 30 minutes of atrial pacing plus intravenous norepinephrine infusion,

164 differentially decreased to ventricular vs. atrial pacing post-MI (63% in control vs. 44% in MI to v

165 and it used 3 different methods of overdrive atrial pacing (Ramp, Burst+, and 50-Hz burst) to treat A

166 three groups: no atrial pacing (NAP), right atrial pacing (RAP) or biatrial pacing (BAP).

167 ried little with isoproterenol or high right atrial pacing rate.

168 Atrial pacing resulted in a marked decline in AF recurre

169 Rapid atrial pacing resulted in increased Ca2+/calmodulin-depe

170 Intermittent rapid left atrial pacing results in sympathetic hyperinnervation, p

171 cular (AV) node dysfunction, rate-responsive atrial pacing should be used in the majority of cases.

172 Dual-site right atrial pacing significantly increased the proportion of

173 Atrial pacing significantly prolongs arrhythmia-free int

174 Two ventricular and two atrial pacing sites on opposite sides of the AP were sel

175 We compared a new two-stage transesophageal atrial pacing stress echocardiography (TAPSE) protocol w

176 Transesophageal atrial pacing stress echocardiography began at a heart r

177 Transesophageal atrial pacing stress echocardiography has been proposed

178 Transesophageal atrial pacing stress echocardiography is a feasible, wel

179 Transesophageal atrial pacing stress echocardiography was feasible in 10

180 Transesophageal atrial pacing stress echocardiography was successful in

181 With transesophageal atrial pacing stress echocardiography, the recovery peri

182 block (L/RBBB) was investigated in a canine atrial pacing study.

183 itions (intracoronary 5% dextrose in water), atrial-pacing tachycardia decreased Tau by 13% (P<0.05),

184 Atrial pacing terminated 48% of AT/AF episodes in patien

185 During left atrial pacing, the earliest right atrial activation was

186 he subgroup of 41 patients treated only with atrial pacing therapies was analyzed, the reduction in b

187 ry active (functional) hyperaemia induced by atrial pacing to a high rate in the denervated heart of

188 idence of ischemia was also confirmed during atrial pacing to a rate of 120 bpm (n=8).

189 We tested the ability of dual-site right atrial pacing to prevent atrial fibrillation (AF) or atr

190 f catecholamines; 2) correction of fever; 3) atrial pacing to restore synchrony; 4) digoxin; 5) pheny

191 tients and the Atrial Fibrillation Reduction Atrial Pacing Trial enrolled 2580 patients receiving a d

192 l (RA) pacing was performed for 3 minutes in atrial pacing triggered by ventricular sensing mode trig

193 id not exhibit spontaneous AF but that rapid atrial pacing unmasked an increased vulnerability to AF

194 The median percentage of atrial pacing was 98% in the ON group versus 75% in the

195 nted dogs, we found that rapid (400 min(-1)) atrial pacing was associated with attenuation of the atr

196 The percentage of atrial pacing was higher in the treatment group (92.9% v

197 Continuous atrial pacing was maintained.

198 Single-site atrial pacing was performed at the high right atrium or

199 Atrial pacing was performed at two drive cycle lengths (

200 study comparing dual- and single-site right atrial pacing was performed followed by a long-term effi

201 Right atrial pacing was performed in 41 subjects with coronary

202 Intermittent rapid left atrial pacing was performed to induce paroxysmal atrial

203 Incremental atrial pacing was used to induce myocardial ischaemia in

204 X2 transgenic mouse and a pig model of rapid atrial pacing, we found that oxidation products (such as

205 t baseline and after LV epicardial and right atrial pacing with high-resolution Doppler and contrast

206 ke also increased significantly from rest to atrial pacing with no significant differences in fractio

207 r or fibrillation was induced by rapid right atrial pacing with or without a right atrial free wall c

208 The ADOPT demonstrated that overdrive atrial pacing with the AF Suppression Algorithm decrease

209 ose uptake increased (P = 0.04) from rest to atrial pacing with unchanged fractional extraction (rest

210 cluded programmed extrastimulation and rapid atrial pacing, with and without isoproterenol.

211 pose of this study was to determine if burst atrial pacing would have an effect on terminating atrial