CBS 2019
CBSMD教育中心
中 文

Transcatheter Aortic Valve Replacement

Abstract

Recommended Article

Transcatheter Aortic Valve Replacement During Pregnancy 2015 ESC Guidelines for the management of infective endocarditis: The Task Force for the Management of Infective Endocarditis of the European Society of Cardiology (ESC) Endorsed by: European Association for Cardio-Thoracic Surgery (EACTS), the European Association of Nuclear Medicine (EANM) Anticoagulation with or without Clopidogrel after Transcatheter Aortic-Valve Implantation Long-Term Durability of Transcatheter Heart Valves: Insights From Bench Testing to 25 Years Predictors of high residual gradient after transcatheter aortic valve replacement in bicuspid aortic valve stenosis Transcatheter versus Surgical Aortic Valve Replacement in Patients with Prior Cardiac Surgery in the Randomized PARTNER 2A Trial Chimney technique in a TAVR-in-TAVR procedure with high risk of left main artery ostium occlusion Comparison of newer generation self-expandable vs. balloon-expandable valves in transcatheter aortic valve implantation: the randomized SOLVE-TAVI trial

Clinical TrialSeptember 2019

JOURNAL:JACC Cardiovasc Interv. Article Link

Left Ventricular Rapid Pacing Via the Valve Delivery Guidewire in Transcatheter Aortic Valve Implantation

B Faurie, G Souteyrand, the EASY TAVI investigators. Keywords: left-ventricular stimulation; left-ventricular pacing; transcatheter aortic valve implantation; transcatheter aortic valve replacement

ABSTRACT


BACKGROUND - Rapid ventricular pacing is necessary to ensure cardiac standstill during transcatheter aortic valve implantation (TAVI).

 

OBJECTIVES - We investigated whether left ventricular (LV)-stimulation via a guidewire reduced procedure duration while maintaining efficacy and safety compared with standard right ventricular (RV)-stimulation.

 

 

METHODS - This is a prospective, multicenter, single-blinded, superiority, randomized controlled trial. Patients undergoing transfemoral TAVI with a Sapien valve (Edwards Lifesciences) were allocated to LV- or RV-stimulation. The primary endpoint was procedure duration. Secondary endpoints included efficacy, safety, and cost at 30 days. This trial is registered at clinicaltrials.gov (NCT02781896).

 

RESULTS - Between May 2017 and May 2018, 307 patients were randomised but 4 were excluded because they did not receive the intended treatment: 303 patients were analysed in the LV- (n=151) or RV-stimulation (n=152) groups. Mean procedure duration was significantly shorter in the LV-stimulation group (48.4±16.9 vs. 55.6±26.9 min, p=0.0013), with a difference of -0.12 (95% CI -0.20 to -0.05) in the log transformed procedure duration (p=0.0012). Effective stimulation was similar in the LV- and RV-stimulation groups: 124 (84.9%) vs. 128 (87.1%), p=0.60. Safety of stimulation was also similar in the LV- and RV-stimulation groups: procedural success occurred in 151 (100%) vs. 151 (99.3%) patients (p=0.99); 30-day MACE-TAVI occurred in 21 (13.9%) vs. 26 (17.1%) patients (p=0.44); fluoroscopy time was lower in the LV-stimulation group (13.48±5.98 vs. 14.60±5.59, p=0.02) as was cost (18,807±1,318 vs. 19,437±2,318, p=0.001).

 

CONCLUSIONS -  Compared with RV-stimulation, LV-stimulation during TAVI was associated with significantly reduced procedure duration, fluoroscopy time, and cost, with similar efficacy and safety.