Baseline patient characteristics
The study included 50 patients (mean age 70±14.1 years, 44% female). Pacing indications were sinus node disease in 8 (16%) patients, atrioventricular block in 30 (60%) and 12 (24 %) patients had a heart failure indication. The SDL group included 23 (46%) patients compared to 27 (54%) patients in the LLL-group. Baseline patient and ECG characteristics and pacing indications are summarized in Table 1.