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Figure 5 Effect of CRT Upgrade on Hospital Stays
(A) Bar graphs summarizing the number of hospital stays in 1 year before and after the upgrade to cardiac resynchronization therapy (CRT). Findings show diminished number of atrial tachyarrhythmia (AT) and heart failure (HF) hospital stays after CRT, whereas other hospital stays (see text) were unaffected. *Statistically significant difference in the number of hospital stays before and after CRT (p < 0.05). (B and C) Distribution (number of patients) of the number of hospital stays/year/patient (total and AT-related) before and after CRT upgrade. p values = 0.001 and <0.001, respectively.
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