Objective:To explore the feasibility,safety,and pacing characteristics of left bundle branch area pacing(LBBAP)using simple stylet-driven pacing lead without a guide sheath.Methods:One hundred and fifty patients were enrolled in this study,and LBBAP was performed with a simple stylet-driven pacing lead without a guide sheath under X-ray guidance.The pacing parameters,paced QRS morphology and width,left ventricular ac-tivation time and operation complications were recorded.Results:Among 150 patients,the success rate of implan-tation of LBBAP lead was 76％.The postoperative QRS width was(118.43±14.02)ms,the unipolar impedance was(589.75±60.14)Ω,the bipolar impedance was(731.88±91.86)Ω,the sensing was(12.25±5.73)mV,and the threshold was(0.85±0.27)V,the LVAT was(61.72±10.60)ms.A total of 114 patients completed follow-up for 12 months,with stable electrode parameters and no serious surgical related complications.Conclusion:It is safe and feasible to use simple stylet-driven pacing lead LBBAP without a guiding sheath.
left bundle branch area pacingstylet-driven pacing leadpacemakerbradycardia
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