Title: Safety and Feasibility of His-Purkinje System Pacing for Over 85-year-old Patients with Symptomatic Bradycardia: A Comparative Study with A Younger Cohort.

Authors : Zhongyuan Ren M.D.1, 2*, Songyun Wang, M.D., PhD3*, Peng Jia M.D.1, Jun Zhang M.D.1, Jing Xiong, M.D., PhD1, Jingying Zhang M.D.1, Haotian Yang M.D.1, Xiang Li. M.D. 1, Yawei Xu M.D., PhD1#, Dongdong Zhao M.D., PhD1#
* Zhongyuan Ren and Songyun Wang contributed equally to the work.
Institutions :
1 Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
2 Soochow University Medical College, No. 199 Ren-ai Road, SIP, Suzhou, 215123, China.
3 Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan University School of Medicine, Wuhan, Hubei Province, 430060, China.
# Corresponding author : Dongdong Zhao, MD, PhD, Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine. 301 Yanchang Rd., Shanghai, 200072, China, e-mail:zhaodd@tongji.edu.cn.
# Co-Corresponding author: Yawei Xu M.D., PhD, Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine. 301 Yanchang Rd., Shanghai, 200072, China. e-mail:xuyawei@tongji.edu.cn
Funding: This work was supported by the National Nature Science Foundation of China [grant numbers 81900292, 81900456], Fundamental Research Funds for the Central Universities [grant number 2042018kf0102], and Renmin Hospital of Wuhan University [grant number RMYD2018M37].
Disclosure : None.