Cost Saving Potential of an Early Detection of Atrial Fibrillation in Patients after ICD Implantation

Table 1

Distribution of CHA2DS2-VASc score in single chamber ICD recipients without indication for anticoagulation (171 patients; mean age 59.1 (SD±15.5) years) from 2011/01/01 to 2013/10/31, Heart Centre in Munich) used for calculation of the base-case scenario stroke rate; adjusted stroke rate per year [23].

CHA2DS2-VASc Score	n (%)	Adjusted stroke rate per year
0	13 (7.6)	0%
1	16 (9.4)	1.3%
2	28 (16.4)	2.2%
3	31 (18.1)	3.2%
4	40 (23.4)	4.0%
5	27 (15.8)	6.7%
6	13 (7.6)	9.8%
7	2 (1.2)	9.6%
8	1 (0.6)	6.7%
9	0 (0.0)	15.2%
All (base-case)	171 (100.0)	3.96% (combined risk set as base-case)

Frequency of CHA2DS2-VASc risk factors in total sample: congestive heart failure = 87.13%; hypertension = 70.18%; age > 75 = 25.73%; diabetes mellitus = 22.22%; stroke/TIA = 31.58%; vascular disease = 9.36%; age: 65-74 = 58.48%; sex category: women = 15.79%.