1Leadless cardiac pacemaker implantations after infected pacemaker system removals in octogenariansSatoshi Higuchi，Ayako Okada，Morio Shoda，Daigo Yagishita，Satoshi Saito，Miwa Kanai，Shohei Kataoka，Kyoichiro Yazaki，Hiroaki Tabata，Hideki Kobayashi，Wataru Shoin，Takahiro Okano，Koji Yoshie，Koichiro Ejima，Koichiro Kuwahara，Nobuhisa HagiwaraRESEARCH ARTICLE505-513
2Association between coronary artery calcification and cognitive function in a Chinese community-based populationYa-Nan MA，Wu-Xiang XIE，Zhi-Hui HOU，Yun-Qiang AN，Xin-Shuang REN，Yan-Jun MA，Cheng-Long LI，Yang-Feng WU，Bin LURESEARCH ARTICLE514-522
3Prevalence and modifiable risk factors of degenerative valvular heart disease among elderly population in southern ChinaShang-Fei HE，Jun-Rong JIANG，Fang-Zhou LIU，Hong-Tao LIAO，Yu-Mei XUE，Mu-Rui ZHENG，Huo-Xing LI，Hai DENG，Shu-Lin WURESEARCH ARTICLE523-533
4Cardiovascular injuries and SARS-COV-2 infection:focus on elderly peopleClaudia Colombo，Laura Garatti，Giulia Ferrante，Francesca Casadei，Claudio Montalto，Gabriele Crimi，Chiara Cogliati，Enrico Ammirati，Stefano Savonitto，Nuccia MoriciRESEARCH ARTICLE534-548
5Aging is associated with cardiac autonomic nerve fiber depletion and reduced cardiac and circulating BDNF levelsAndrea Elia，Alessandro Cannavo，Giuseppina Gambino，Maria Cimini，Nicola Ferrara，Raj Kishore，Nazareno Paolocci，Giuseppe RengoRESEARCH ARTICLE549-559
6Acute heart failure in elderly patients:a review of invasive and non-invasive managementGregorio Tersalvi，Alessio Gasperetti，Marco Schiavone，Jeroen Dauw，Cecilia Gobbi，Marialessia Denora，Joel Daniel Krul，Giacomo Maria Cioffi，Gianfranco Mitacchione，Giovanni B.ForleoREVIEW560-576
7Vulnerable atherosclerotic plaque features:findings from coronary imagingOsamu Kurihara，Masamichi Takano，Yasushi Miyauchi，Kyoichi Mizuno，Wataru ShimizuREVIEW577-584
8Effect of atrial fibrillation on cognitive function in heart failure patientsNikolaos Ktenopoulos，Ioanna Koniari，Virginia Mplani，Eleni Artopoulou，Grigorios Tsigkas，Andreas Gerakaris，Nicholas Kounis，Dimitrios VelissarisPERSPECTIVE585-590
9A case of mediastinal mesenchymal tumor resembling hemopericardiumAynur Acibuca，Mustafa Yilmaz，Elif Karadeli，Emine Tuba Canpolat，Tansel ErolCASE REPORT591-594
10Think twice before implanting leads in a swimmer:challenges in lead implantation of an implantable cardioverter-defibrillatorDimitrios Varvarousis，Vasileios Doulamis，Nikolaos Parzakonis，Georgios KourgiannidisLETTER TO THE EDITOR595-596
