Patient Condition
Dilated cardiomyopathy HFrEF, LVEF 30%, NYHA class III, LBBB (QRS 160ms). After optimized drug treatment, he still had obvious symptoms of heart failure and his exercise tolerance was severely limited.
Treatment Timeline
| Phase | Details | Date |
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| CRT Indication Assessment | | |
| CRT-D implantation | | |
| Postoperative optimization and rehabilitation | | |
| long-term follow-up | | |
Treatment Outcome
| before | LVEF 30%, NYHA class III, QRS 160ms, VO2max 12 mL/kg/min |
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| after | LVEF 47%, NYHA class I-II, QRS 125ms, VO2max 22 mL/kg/min |
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| highlight | CRT-D combined with GDMT increased LVEF by 17%, and exercise tolerance was close to normal levels |
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