ABC | Volume 114, Nº2, February 2020

Original Article Lacerda et al. Mortality in cardioinhibitory carotid sinus hypersensitivity Arq Bras Cardiol. 2020; 114(2):245-253 Figure 4 – Example of a patient with CICSH. ECG of a 58 year-old male with previous percutaneous coronary intervention. He denied syncope in the past. The ECG reveals normal sinus rhythm with heart rate of 60 bpm and T-wave inversion in Lead 3 and aVF. Right carotid sinus massage triggered 6360 seconds of asystole with concomitant fall in blood pressure and pre-syncope. A few minutes later, he was submitted to left carotid sinus massage, no asystole was observed. RCSM: right carotid sinus massage. Conclusions The present study showed that 55.8% of the CICSH patient cohort had died after a maximum follow-up of 11.6 years. This high mortality rate was similar to that found in a cohort of patients without CICSH. Cardiovascular mortality, ischemic heart disease and trauma-related mortalities were also similar in both patient cohorts. Author contributions Conception and design of the research: Lacerda GC, Lacerda RG, Pedrosa RC; Acquisition of data: Lacerda GC, Guimarães AEC; Analysis and interpretation of the data: Lacerda GC, Lorenzo AR, Tura BR, Santos MC, Guimarães AEC, Lacerda RG, Pedrosa RC; Statistical analysis: Lacerda GC, Lorenzo AR, Tura BR; Writing of the manuscript: Lacerda GC, Lorenzo AR, Santos MC, Lacerda RG, Pedrosa RC; Critical revision of the manuscript for intellectual content: Lacerda GC, Lorenzo AR, Tura BR, Santos MC. Potential Conflict of Interest No potential conflict of interest relevant to this article was reported. Sources of Funding There were no external funding sources for this study. Study Association This article is part of the thesis of Doctoral submitted by Gustavo de Castro Lacerda , from Faculdade de Medicina da UFRJ – Instituto do Coração Edson Saad. Ethics approval and consent to participate This study was approved by the Ethics Committee of the Hospital Geral de Bonsucesso under the protocol number 2.383.341. All the procedures in this study were in accordance with the 1975 Helsinki Declaration, updated in 2013. 251