27 September 2025
: Case report 
Restoration of Cardiac Function in Left Bundle Branch Block-Induced Cardiomyopathy via Conduction System Pacing: A Case Report
Unknown etiology, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Diagnostic / therapeutic accidents, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Jing Wang BDEF 1, Bing Han AB 2, Xiaojuan Wang BDF 2, Zixian Chen BC 3, Wenqiang Li ABDE 4,5*DOI: 10.12659/AJCR.948576
Am J Case Rep 2025; 26:e948576
Table 1 Laboratory data.
| Variable (units) | Value on admission date (Aug 15, 2022) | Reference range for adults |
|---|---|---|
| N-terminal pro-B-type natriuretic peptide (NT-proBNP) (pg/mL) | 247 | 300–450 |
| C-reactive protein (CRP) (mg/L) | 4.53 | 0–4 |
| Serum creatinine (Crea) (mg/L) | 81.8 | 41–73 |
| Low-density lipoprotein cholesterol (LDL-C) (mmol/L) | 4.1 | 1.55–3.7 |
| Myoglobin (MYO) (ng/mL) | 41 | 23–112 |
| Creatine kinase-MB (CK-MB) (ng/mL) | 2 | 2–7.2 |
| Troponin I (TNI) (ng/mL) | 0.010 | 0.010–0.023 |
| Free triiodothyronine (FT3) (pg/mL) | 3.4 | 2.3–4.8 |
| Free thyroxine (FT4) (ng/mL) | 0.95 | 0.62–1.24 |
| Thyroid-stimulating hormone (TSH) (mIU/L) | 5.932 | 0.56–5.91 |