TY - JOUR TI - Cardiac magnetic resonance predicts ventricular arrhythmias in scleroderma: the Scleroderma Arrhythmia Clinical Utility Study (SAnCtUS) AU - Mavrogeni, Sophie AU - Gargani, Luna AU - Pepe, Alessia AU - Monti, Lorenzo AU - and Markousis-Mavrogenis, George AU - De Santis, Maria AU - De Marchi, AU - Daniele AU - Koutsogeorgopoulou, Loukia AU - Karabela, Georgia and AU - Stavropoulos, Efthymios AU - Katsifis, Gikas AU - Bratis, Konstantinos and AU - Bellando-Randone, Silvia AU - Guiducci, Serena AU - Bruni, Cosimo and AU - Moggi-Pignone, Alberto AU - Dimitroulas, Theodoros AU - Kolovou, Genovefa AU - and Bournia, Vasiliki-Kalliopi AU - Sfikakis, Petros P. and AU - Matucci-Cerinic, Marco JO - Rheumatology (Bulgaria) PY - 2020 VL - 59 TODO - 8 SP - 1938-1948 PB - Oxford University Press SN - null TODO - 10.1093/rheumatology/kez494 TODO - scleroderma; systemic sclerosis; cardiovascular magnetic resonance; sudden cardiac death; rhythm disturbance TODO - Objectives: Cardiac rhythm disturbances constitute the most frequent cardiovascular cause of death in SSc. However, electrocardiographic findings are not a part of risk stratification in SSc. We aimed to translate 24 h Holter findings into a tangible risk prediction score using cardiovascular magnetic resonance. Methods: The Scleroderma Arrhythmia Clinical Utility Study (SAnCtUS) was a prospective multicentre study including 150 consecutive SSc patients from eight European centres, assessed with 24 h Holter and cardiovascular magnetic resonance, including ventricular function, oedema (T2 ratio) and late gadolinium enhancement (%LGE). Laboratory/clinical parameters were included in multivariable corrections. A combined endpoint of sustained ventricular tachycardia requiring hospitalization and sudden cardiac death at a median (interquartile range) follow-up of 1 (1.0-1.4) year was generated. Results: Only T2 ratio and %LGE were significant predictors of ventricular rhythm disturbances, but not of supraventricular rhythm disturbances, after multivariable correction and adjustment for multiple comparisons. Using decision-tree analysis, we created the SAnCtUS score, a four-category scoring system based on T2 ratio and %LGE, for identifying SSc patients at high risk of experiencing ventricular rhythm disturbance at baseline. Increasing SAnCtUS scores were associated with a greater disease and arrhythmic burden. All cases of non-sustained ventricular tachycardia (n = 7) occurred in patients with the highest SAnCtUS score (=4). Having a score of 4 conveyed a higher risk of reaching the combined endpoint in multivariable Cox regression compared with scores 1/2/3 [hazard ratio (95% CI): 3.86 (1.14, 13.04), P = 0.029] independently of left ventricular ejection fraction and baseline ventricular tachycardia occurrence. Conclusion: T2 ratio and %LGE had the greatest utility as independent predictors of rhythm disturbances in SSc patients. ER -