1The Valvular Heart Disease-specific Age-adjusted Comorbi-dity Index(VHD-ACI)score in patients with moderate or se-vere valvular heart diseaseMu-Rong XIE，Bin ZHANG，Yun-Qing YE，Zhe LI，Qing-Rong LIU，Zhen-Yan ZHAO，Jun-Xing LV，De-Jing FENG，Qing-Hao ZHAO，Hai-Tong ZHANG，Zhen-Ya DUAN，Bin-Cheng WANG，Shuai GUO，Yan-Yan ZHAO，Run-Lin GAO，Hai-Yan XU，Yong-Jian WURESEARCH ARTICLE759-774
2Adding implantable cardioverter-defibrillator to cardiac re-synchronization therapy in patients with non-ischemic card-iomyopathy:a systematic review and meta-analysis with focus on elderly subpopulationVanda Devesa Neto，Gonçalo Costa，Luís Ferreira Santos，Rogério TeixeiraRESEARCH ARTICLE775-783
3Delirium risk factors in patients ≥ 60 years of age with rec-ent myocardial infarctionAleksandra Burchacka，Małgorzata Niemiec，Kamil Barański，Anna Bednarek，Paweł Bańka，Klaudia Męcka，Kinga Czepczor，Maciej Podolski，Andrzej Hoffmann，Kat-arzyna Mizia-StecRESEARCH ARTICLE784-792
4Performance assessment of computed tomographic angiog-raphy fractional flow reserve using deep learning:SMART tri-al summaryWei ZHANG，You-Bing YIN，Zhi-Qiang WANG，Ying-Xin ZHAO，Dong-Mei SHI，Yong-He GUO，Zhi-Ming ZHOU，Zhi-Jian WANG，Shi-Wei YANG，De-An JIA，Li-Xia YANG，Yu-Jie ZHOURESEARCH ARTICLE793-801
5Characteristics,management,and predictors of 6-month mor-tality in very elderly patients admitted for decompensated he-art failurePrado Salamanca-Bautista，Rocío Ruiz-Hueso，Irene Bravo-Candela，Miriam Romero-Correa，Ana Belkis Porto-Pérez，Luis Enrique Cajamarca-Calva，Miguel Otero-Soler，Car-los Jiménez-de Juan，Aída Gil-Díaz，Carmen Alemán-Llansó，Javier Abellán-Martínez，Francesc Formiga，on behalf of the EPICTER Investigators groupRESEARCH ARTICLE802-811
6Chronic heart failure with reduced and mildly reduced left ventricle ejection fraction:relationship between mitochon-drial respiratory dysfunction of peripheral blood mononu-clear cells and iron deficiencyAlla A Garganeeva，Viacheslav A.Korepanov，Elena A Kuzheleva，Olga V Tukish，Karina N Vitt，Elvira F Muslimova，Sergey A AfanasievRESEARCH ARTICLE812-817
7Usefulness of cardiac rehabilitation programs among older patients undergoing transcatheter aortic valve replacement:how should we do it?Vicente Arrarte Esteban，Raquel Campuzano Ruiz，Rosa Fernández Olmo，Armando Oterino，Pablo Diez-Villanueva，Miryam González Cebrián，Lucía Matute-BlancoREVIEW818-827
8Tracking a patient with no technetium-99m-pyrophosphate myocardial uptake at surgical valve replacement for aortic stenosisKoji Takahashi，Daisuke Sasaki，Takaaki Iwamura，Shuhei Yamamoto，Mitsuharu Ueda，Nobuhisa Yamamura，Mako Yoshino，Daijiro Enomoto，Hiroe Morioka，Shigeki Uemura，Takafumi Okura，Tomoki Sakaue，Katsuji InoueLETTER TO THE EDITOR828-833
