ライフサイエンスコーパス: biventricular

1 subtypes: single chamber, dual chamber, and biventricular.

2 ; and ICD type: single-chamber (2 points) or biventricular (1 point) device.

3 points), ICD type dual chamber (2 points) or biventricular (4 points), and nonelective ICD implant (3

4 s of African descent can be characterized by biventricular abnormality and pulmonary hypertension, in

5 prove clinically following alternative site, biventricular and cardiac resynchronization pacing.

6 atients and was completely abolished by both biventricular and left ventricular pacing (P<0.05).

7 olume relation before and during delivery of biventricular and left ventricular pacing.

8 or patients with normal QRSd and LBBB during biventricular and LV pacing.

9 ved/unchanged/worsened in 53%/24%/24% in the biventricular arm compared with 39%/33%/28% in the RV ar

10 rdiac-restricted phenotype of an early onset biventricular arrhythmogenic cardiomyopathy.

11 The rationale for the use of a biventricular assist device (BiVAD) for morbid congestiv

12 Experience with the use of biventricular assist device (BiVAD) support to bridge sm

13 tivariable analysis identified lower weight, biventricular assist device support, and elevated biliru

14 renal dysfunction, hepatic dysfunction, and biventricular assist device use were associated with mor

15 medical therapy with intravenous inotropes, biventricular assist devices (Bi-VADs) and the total art

16 Mortality was highest in patients with biventricular assist devices (HR, 5.00; P<0.0001) and te

17 s, 23% right ventricular assist devices, 18% biventricular assist devices).

18 to transplantation with left ventricular and biventricular assist devices, such as right heart failur

19 Outcomes in patients requiring biventricular assist devices, total artificial heart, an

20 AMI: 443 left ventricular assist devices; 33 biventricular assist devices; and 26 total artificial he

21 We sought to evaluate the effects of biventricular (BDOO) pacing compared with conventional (

22 controlled study that analyzed 700 patients (biventricular [Bi-V] ICD and non-Bi-V ICD) with primary

23 Biventricular (BiV) and left ventricular (LV) pacing sim

24 (apex and outflow tract), LV free wall, and biventricular (BiV) at 80 and 120 bpm.

25 e-ventricular (VVI), single-atrial (AAI), or biventricular (BiV) devices.

26 CRT implemented by either biventricular (BiV) or left ventricular-only (LV) pacing

27 ction during right ventricular (RV), LV, and biventricular (BiV) pacing in patients with narrow QRS d

28 ardiac resynchronization therapy assume that biventricular (BiV) pacing results in collision of right

29 r pacing is used as an indicator of adequate biventricular (BiV) pacing.

30 BB, the lateral wall contracts early so that biventricular (BiV) pre-excitation may not be needed.

31 Endocardial biventricular (BiV) stimulation may provide more flexibi

32 chrony, it is uncertain whether simultaneous biventricular (BiV), sequential BiV, or left ventricular

33 A subset of patients has achieved a biventricular (BV) circulation after fetal aortic valvul

34 by the prediction of univentricular (UV) or biventricular (BV) circulation.

35 ggest that even a relatively high-percentage biventricular capture may be inadequate, and that the be

36 intensive exercise results in physiological biventricular cardiac adaptation.

37 Our prior studies suggest biventricular cardiac dysfunction and vascular impairmen

38 at risk for imminent death from irreversible biventricular cardiac failure.

39 und several individuals with severe forms of biventricular cardiomyopathy characterized by mainly lef

40 was associated with outcome in children with biventricular circulation (hazard ratio, 2.7; 95% confid

41 was associated with outcome in children with biventricular circulation (hazard ratio, 4.7; 95% confid

42 more than twice as many were discharged with biventricular circulation after successful FCI versus th

43 s 90% accurate at predicting survival with a biventricular circulation among neonates with AS and a m

44 ccurate model for predicting survival with a biventricular circulation among the full cohort is: 10.9

45 ment failures, the percentages were similar: biventricular circulation at discharge was 31.3% versus

46 esting during HT evaluation in children with biventricular circulation identified those at higher ris

47 In contrast, all 6 fetuses with a biventricular circulation postnatally had antegrade flow

48 Seventeen patients had a biventricular circulation postnatally, 15 from birth.

49 intervention are very unlikely to achieve a biventricular circulation postnatally.

50 y developed HLHS and those that maintained a biventricular circulation postnatally.

51 Native biventricular circulation was achieved in 12 patients af

52 The 91 early survivors with a biventricular circulation were followed up for 6.3+/-5.3

53 ple interventions may be required to achieve biventricular circulation, but stenting of the arterial

54 Among early survivors with a biventricular circulation, reintervention-free survival

55 enty-five patients (83% of survivors) have a biventricular circulation.

56 ents, this strategy allowed establishment of biventricular circulation.

57 able follow-up data, 17 had HLHS and 6 had a biventricular circulation.

58 success were pre-specified for patients with biventricular circulation: 1) 20% reduction in right ven

59 membrane oxygenation offers the advantage of biventricular circulatory support and oxygenation, but t

60 8 h following aortic constriction, fulminant biventricular congestive heart failure, characterized by

61 hypothesized that staged LV recruitment and biventricular conversion may be achieved after SVP by us

62 Biventricular CRT was performed using a fixed right vent

63 s have reported the complications related to biventricular device implantation.

64 , particularly pacemaker to defibrillator or biventricular device, extraction through occluded vascul

65 Leads and biventricular devices were not included in the study.

66 devices (LVADs) provide better outcome than biventricular devices, but it is a challenge to predict

67 -75% interquartile range, 3.2-4.6) years for biventricular devices.

68 rt, and not addressing potential upgrades to biventricular devices.

69 o implantation, hardware, and programming of biventricular devices.

70 ac adaptation to regular exercise, including biventricular dilation and T-wave inversion (TWI), may c

71 r evidence of cardiomyopathy associated with biventricular dilation and wall thickness changes.

72 TWI and balanced biventricular dilation are likely to represent benign ma

73 ational marathon training is associated with biventricular dilation, enhanced left ventricular diasto

74 t structural injury, to an advanced stage of biventricular dysfunction (H), different stages of lung

75 In patients with repaired TOF, biventricular dysfunction on CMR imaging was associated

76 Pediatric HT recipients have biventricular dysfunction using pulsed-wave tissue Doppl

77 Neither biventricular E/e' ratio nor biatrial stiffness changed

78 There was no difference in biventricular ejection fraction between TTNtv(+/-) group

79 In particular, 2396 (56.8%) underwent biventricular EMB, 1153 (27.3%) underwent selective LVEM

80 Patients underwent biventricular EMB, cardiac catheterization (for exclusio

81 Biventricular end-diastolic volume, end-systolic volume,

82 Ndufs6(gt/gt) mice develop biventricular enlargement by 1 mo, most pronounced in ma

83 ught to compare left ventricular (LVepi) and biventricular epicardial pacing (BIVepi) with LV (LVendo

84 tivation times (LATs) for LV endocardial and biventricular epicardial tissue were calculated (LVLAT a

85 pressure overload (RVPO) and further explore biventricular expression of two key proteins that regula

86 ritically ill patients who have irreversible biventricular failure and are candidates for cardiac tra

87 hospitalized for fulminant myocarditis with biventricular failure and cardiogenic shock, acutely man

88 farction, acute decompensated heart failure, biventricular failure, and myocarditis), and explore man

89 arts are being designed for the treatment of biventricular failure.

90 g protocols for both isolated RV failure and biventricular failure.

91 nistration of inhaled sodium nitrite reduces biventricular filling pressures and pulmonary artery pre

92 VSD patients, MRT was associated with higher biventricular filling pressures and reduced cardiac outp

93 4 and12.9+/-4.0 mL/min.kg; P<0.0001), higher biventricular filling pressures with exercise, and depre

94 ntricular volume improvements, and preserves biventricular function in an ovine model of chronic pulm

95 Atrial dimensions and biventricular function were quantified by cine images.

96 of right ventricular volumes, improvement in biventricular function, and submaximal exercise capacity

97 ar synchrony (IVS), a measure of synchronous biventricular function.

98 CMR imaging was performed to assess biventricular function; feature-tracking analysis was ap

99 omical properties of the tissue, such as the biventricular geometry and the inherent anisotropy of ca

100 OF REVIEW: Treatment options for late-stage biventricular heart failure are limited but include medi

101 ths) or during follow-up (n=11: 10 SCD, 1 of biventricular heart failure), of whom only 3 were diagno

102 ressive conditions that lead to arrhythmias, biventricular heart failure, and death.

103 in patients who have irreversible end-stage biventricular heart failure.

104 left ventricular (LV) systolic dysfunction (biventricular hearts, ejection fraction < 50%, > 3 month

105 demonstrate a percutaneous approach to study biventricular hemodynamics in murine models of primary a

106 o improve symptoms, functional capacity, and biventricular hemodynamics.

107 s (75%) had ECG abnormalities, most commonly biventricular hypertrophy (10 patients, 28%).

108 d echocardiographic analysis revealed severe biventricular hypertrophy without evidence of fibrosis o

109 tiology in Primary Prevention Treated with a Biventricular ICD [RELEVANT] and Primary Prevention Para

110 27%, P<0.01) and were more likely to receive biventricular ICDs (39% versus 34%, P<0.01).

111 0.004), dual-chamber (p trend < 0.0001), and biventricular ICDs (p trend = 0.02).

112 s 1.4%, 1.5%, and 2.0% for single, dual, and biventricular ICDs, respectively (P<0.001).

113 impaired (</=35%) in 63 patients (30%), and biventricular impairment (left ventricular EF<60% and RV

114 Biventricular impairment (lowest quartile left ventricul

115 Biventricular impairment dramatically reduced 10-year ca

116 stoperative cardiovascular survival, whereas biventricular impairment is a powerful predictor of both

117 Biventricular impairment reduced also 10-year overall su

118 In 1 patient, with prior biventricular implantable cardioverter-defibrillator, di

119 h prevalence of LV DCE confirms the frequent biventricular involvement and indicates the diagnostic r

120 replacement of right ventricular myocardium; biventricular involvement is often observed.

121 In the chronic phase, biventricular involvement is the most common presentatio

122 At the biventricular level, we reduced the apex-to-base and tra

123 (6) Programming CRT systems to achieve biventricular/LV pacing >98.5% is important.

124 F), first-pass bolus kinetic parameters, and biventricular mass and function were determined.

125 11% versus NICM 2% versus ICM 4%; P<0.001), biventricular mechanical circulatory support (myocarditi

126 and recover more frequently but require more biventricular mechanical circulatory support.

127 method allows quantification of biatrial and biventricular mechanics from measures of deformation: st

128 ensional (2D) canine and human and 3D canine biventricular models.

129 There were significant correlations between biventricular MPRI and both mean pulmonary arterial pres

130 due to need for antitachycardia (n = 5), or biventricular (n = 4) or bradycardia pacing (n = 1).

131 SND and biventricular NCCM were diagnosed in multiple members of

132 o III HF, and LV ejection fraction </=50% to biventricular or right ventricular pacing.

133 left ventricular ejection fraction </=50% to biventricular or RV pacing.

134 ch-up growth of the RV in patients who had a biventricular outcome (z-score increase +0.08/year, p =

135 subset of cases, appeared to contribute to a biventricular outcome after birth.

136 stem was able to discriminate fetuses with a biventricular outcome with 100% sensitivity and modest p

137 he time of intervention were associated with biventricular outcome.

138 This study used a novel Langendorff, biventricular, ovine fetal heart preparation to investig

139 The 3D biventricular-paced canine model resulted in %dLV and %d

140 ioventricular Block) trial demonstrated that biventricular-paced patients had a reduced incidence of

141 an implantable device (defibrillator 30.4%, biventricular pacemaker 3.4%, combined 37.3%).

142 Approximately 10% of patients undergoing biventricular pacemaker insertion have a failure of coro

143 nchronization therapy (CRT) receive either a biventricular pacemaker or a biventricular pacemaker wit

144 A biventricular pacemaker was implanted in 19 patients.

145 eceive either a biventricular pacemaker or a biventricular pacemaker with an implantable cardioverter

146 pacemaker, 14 a dual chamber pacemaker, 3 a biventricular pacemaker, and 1 has a single chamber impl

147 Cardiac resynchronization therapy, a biventricular pacemaker-based therapy for heart failure,

148 The AV delay optimization of biventricular pacemakers (cardiac resynchronization ther

149 The percentage of patients with biventricular pacing >/=92% was similar in both groups (

150 dramatically increase the probability of low biventricular pacing (<97%), with reduced CRT efficacy b

151 e halfway value of VAQRS during simultaneous biventricular pacing (53% of cases) was associated with

152 al fibrillation (AF), assessed its impact on biventricular pacing (BIVP%), and determined whether AF

153 quences of left ventricular pacing (LVP) and biventricular pacing (BiVP).

154 This study assessed the effects of biventricular pacing (BVP) on ventricular function, func

155 The landmark trials of biventricular pacing (cardiac resynchronization therapy

156 Biventricular pacing (or cardiac resynchronization thera

157 advances over the past year related to (1). biventricular pacing as a treatment for dilated myopathy

158 re, with native conduction (LBBB) and during biventricular pacing at atrioventricular (AV) delays of

159 Biventricular pacing at AV delays of 120 ms generated a

160 -Opt, against LBBB as reference; BiV-Opt and biventricular pacing at AV delays of 120 ms were not sig

161 Biventricular pacing at AV delays of 40 ms was no differ

162 y were performed without pacing, with LV and biventricular pacing at optimal atrioventricular delay.

163 In comparison with LBBB, biventricular pacing at separately preidentified hemodyn

164 followed by 3 weeks of resynchronization by biventricular pacing at the same pacing rate (CRT).

165 eeks (DHF) or 3 weeks followed by 3 weeks of biventricular pacing at the same rate (CRT).

166 e mechanical benefits and in fine-tuning the biventricular pacing configuration and protocol, little

167 proarrhythmia; P<0.01), requiring temporary biventricular pacing discontinuation in half of cases.

168 one quarter of mild HF patients eligible for biventricular pacing experience S-LVRR.

169 iac structure and function are improved with biventricular pacing for patients with atrioventricular

170 Patients randomly assigned to biventricular pacing had a significantly lower incidence

171 Biventricular pacing has been introduced to resynchroniz

172 influence of ectopic beats on the success of biventricular pacing has not been well established.

173 When biventricular pacing improves LV contraction and relaxat

174 ardiac resynchronization therapy (CRT) using biventricular pacing improves symptoms and functional ca

175 Biventricular pacing in heart failure (HF) improves surv

176 However, little is known about biventricular pacing in HF patients with atrioventricula

177 erior to atrioventricular-node ablation with biventricular pacing in patients with heart failure who

178 nce for optimizing outcomes related to RV or biventricular pacing in the pacemaker and ICD population

179 diac resynchronization therapy (CRT) through biventricular pacing is an effective treatment for heart

180 Biventricular pacing is being combined with ICD function

181 However, the appropriate amount of biventricular pacing is ill-defined.

182 A high percentage of biventricular pacing is required for optimal outcome in

183 (4) Biventricular pacing may be beneficial in some patients

184 ort this observation, and raise concern that biventricular pacing may be proarrhythmic in select case

185 single-site RV or left ventricular pacing or biventricular pacing may be superior to RVA pacing.

186 We evaluated whether biventricular pacing might reduce mortality, morbidity,

187 oventricular block and systolic dysfunction, biventricular pacing not only reduces the risk of mortal

188 a molecular pathway for regulation of INa by biventricular pacing of the failing heart.

189 m data are needed to determine the effect of biventricular pacing on survival.

190 The primary performance endpoint, biventricular pacing on the 12-lead electrocardiogram at

191 The probability of subsequent low biventricular pacing percentage (<97%) was increased 3-f

192 ased ectopic beats reduce the chance of high biventricular pacing percentage and are associated with

193 -defibrillator device with data available on biventricular pacing percentage and pre-implantation 24-

194 remained paroxysmal in 69.5%, did not reduce biventricular pacing percentage.

195 ization achieved through atrial-synchronized biventricular pacing produces clinical benefits in patie

196 Subjects were grouped based on percent biventricular pacing quartiles with the use of Kaplan-Me

197 Lifespan gain from biventricular pacing rises nonlinearly with time.

198 Patients with biventricular pacing showed greater improvement in NYHA

199 Biventricular pacing significantly reduced LV volume ind

200 D device as part of the VENTAK CHF/CONTAK CD Biventricular Pacing study were analyzed.

201 lar tachyarrhythmia induction as a result of biventricular pacing support this observation, and raise

202 ned in 50 patients implanted with the InSync biventricular pacing system who were randomized to thera

203 res including more sophisticated sensors and biventricular pacing systems.

204 is analysis was to determine the appropriate biventricular pacing target in patients with heart failu

205 Biventricular pacing to improve ventricular contractilit

206 harmacologic therapy (OPT) alone or OPT with biventricular pacing to provide cardiac resynchronizatio

207 We conducted a meta-analysis of biventricular pacing trials to calculate lifespan gained

208 Biventricular pacing using right ventricular (RV) and le

209 his at-risk patient population by performing biventricular pacing via a wireless left ventricular (LV

210 permanent atrial fibrillation; particularly, biventricular pacing was superior compared with conventi

211 Biventricular pacing was superior to conventional right

212 cardiac-resynchronization therapy (CRT) with biventricular pacing would reduce the risk of death or h

213 overter-defibrillator therapy alone (without biventricular pacing) results in a significant reduction

214 r rate limit, percent atrial pacing, percent biventricular pacing, and implant year.

215 We hypothesized that biventricular pacing, by restoring left ventricular (LV)

216 tion of the left ventricle, as occurs during biventricular pacing, can facilitate the development of

217 nderwent atrioventricular-node ablation with biventricular pacing, lead dislodgment was found in one

218 activation of the LV wall, as occurs during biventricular pacing, leads to a prominent increase in Q

219 rnate RV pacing sites, minimizing RV pacing, biventricular pacing, left ventricular (LV) pacing, and

220 Biventricular pacing, left ventricular assist devices, a

221 Except for resynchronization with biventricular pacing, no medical therapies have been sho

222 ilure and suggested that atrial-synchronized biventricular pacing, or cardiac resynchronization thera

223 whether these patients benefit from upfront biventricular pacing.

224 gned to standard right ventricular pacing or biventricular pacing.

225 ds high energy utilization due to continuous biventricular pacing.

226 te adequate LV lead positions and continuous biventricular pacing.

227 magnitude of benefit was observed with >92% biventricular pacing.

228 ation or atrioventricular-node ablation with biventricular pacing.

229 with no other minimally invasive options for biventricular pacing.

230 luence of ectopic beats on the percentage of biventricular pacing.

231 nderwent atrioventricular-node ablation with biventricular pacing; none were lost to follow-up at 6 m

232 nderwent atrioventricular-node ablation with biventricular pacing; P<0.001), a longer 6-minute-walk d

233 , as compared with 160 of 349 (45.8%) in the biventricular-pacing group.

234 antly associated with procedural success for biventricular patients according to both definitions.

235 Biventricular patients with an ostial stenosis had a hig

236 were observed in single ventricle patients, biventricular patients with longer postrepair ICU stays,

237 VOTO, which leads to an early improvement in biventricular performance.

238 ting mechanically disadvantageous effects on biventricular performance.

239 of heart failure in an anatomically accurate biventricular rabbit model.

240 to surgery underwent an echocardiography and biventricular radionuclide angiography with regional fun

241 In PAH patients, reduced biventricular regional function is associated with incre

242 shunting in growing piglets induces PH with biventricular remodeling and myocardial fibrosis that ca

243 ting which neonates with AS are suitable for biventricular repair and which are better served by sing

244 years; median, 5.5 months) with a definitive biventricular repair for CHD underwent AOO, CDOO, and BD

245 Children who underwent biventricular repair of a conotruncal anomaly from Janua

246 Survival free from failure of biventricular repair or mitral valve reintervention was

247 nderwent BMVP, survival free from failure of biventricular repair or MVR was 79% at 1 month and 55% a

248 idered for fetal interventions or post-natal biventricular repair strategies.

249 hlighted through the establishment of staged biventricular repair surgery in infant patients with hyp

250 obstruction presenting for univentricular or biventricular repair were randomized to either DHCA or A

251 Of 104 infants undergoing biventricular repair without aortic arch reconstruction,

252 cases (2.5%): less complex CHD that allowed biventricular repair, fewer surgical procedures, or decr

253 %): more complex CHD that was unsuitable for biventricular repair, leading to unplanned compassionate

254 ft ventricle (LV) involves 2 options: SVP or biventricular repair.

255 wth in left ventricular structures, allowing biventricular repair.

256 RECENT FINDINGS: The TAH offers biventricular replacement, rather than 'assistance', as

257 pacing, heart failure, dual-site, multisite, biventricular, resynchronization, and left ventricular p

258 tions were systematically assessed: standard biventricular (right ventricular apex+LV), LV-only, HIS,

259 Additionally, biventricular rotor locations in sustained VF were conse

260 Phase analysis was applied to identify biventricular rotors in the first 10 s or until VF termi

261 Biventricular segmental, section, and mean ventricular p

262 collaterals, and on its ability to quantify biventricular size and function, pulmonary regurgitation

263 undle-branch block underwent implantation of biventricular stimulation (BVS) devices as part of a ran

264 Catheter ablation allowed for resumption of biventricular stimulation in all patients.

265 ed that cardiac resynchronization (CRT) from biventricular stimulation reverses such molecular abnorm

266 ronization therapy (CRT), the application of biventricular stimulation to correct discoordinate contr

267 iac-resynchronization therapy in the form of biventricular stimulation with a pacemaker with or witho

268 ue to mechanical dyssynchrony, reversible by biventricular stimulation.

269 Biventricular strain and mechanical synchrony measuremen

270 Both primary and secondary RVPO decreased biventricular stroke work however RV instantaneous peak

271 nct effects of primary and secondary RVPO on biventricular structure, function, and expression of key

272 tricle, but recognition of left-dominant and biventricular subtypes has prompted proposal of the broa

273 ents with AHF had the highest utilization of biventricular support (14.4%).

274 1% of nonischemic patients, and the need for biventricular support did not preclude recovery.

275 ransplant candidates requiring temporary and biventricular support have the highest risk of adverse o

276 with a long-term device, with 39% requiring biventricular support.

277 Five received biventricular support.

278 (n=2), aortic valve disease (n=2), and other biventricular surgery (n=4).

279 Expansion of the use of biventricular systems, with implantation of coronary sin

280 ging studies </=10 days post-HT demonstrated biventricular systolic and diastolic dysfunction with mo

281 Impaired right, left, or biventricular systolic function derived from baseline CM

282 he young developing heart, chronic PI alters biventricular systolic function, RV myocardial contracti

283 d with a poor prognosis, independent of age, biventricular systolic function, RV size, and dilation o

284 ks of additional atrial tachypacing (DHF) or biventricular tachypacing (CRT).

285 acing for 6 weeks) and CRT (DHF for 3 weeks, biventricular tachypacing for subsequent 3 weeks), contr

286 Biventricular TGFbeta1 expression was increased in both

287 ricular hypoplasia may instead allow various biventricular therapeutic strategies and better long-ter

288 ock because they are typically excluded from biventricular trials.

289 onary and systemic hemodynamics resulting in biventricular unloading.

290 Biventricular vasoreactivity is significantly reduced wi

291 (Biventricular Versus Right Ventricular Pacing in Heart F

292 The BLOCK HF (Biventricular Versus Right Ventricular Pacing in Heart F

293 The Biventricular versus Right Ventricular Pacing in Heart F

294 We sought to validate a novel method of biventricular volume quantification by cardiac MRI (CMR)

295 Biventricular volumes and function did not differ signif

296 diac magnetic resonance imaging to determine biventricular volumes and function.

297 in and VAs of right ventricular origin about biventricular volumes and systolic function.

298 ory motion, highly reproducible and accurate biventricular volumes can be measured during maximal exe

299 We investigated biventricular volumes, function, and the presence of myo

300 Biventricular working hearts were subjected to 35 minute