CTS Surgery Biopsies May Identify Early ATTR-CM
Biopsy-guided screening in older patients with idiopathic carpal tunnel syndrome detected mostly early-stage, often asymptomatic disease
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By
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Andrea Surnit
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April 21, 2026
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Clinical Scorecard: CTS Surgery Biopsies May Identify Early ATTR-CM
At a Glance
| Category | Detail |
|---|
| Condition | Transthyretin Amyloid Cardiomyopathy (ATTR-CM) |
| Key Mechanisms | Biopsy-guided screening during carpal tunnel surgery identifies amyloid deposition. |
| Target Population | Older patients undergoing surgery for idiopathic carpal tunnel syndrome (men aged 65+, women aged 75+). |
| Care Setting | Multicenter surgical settings. |
Key Highlights
- 17% of patients with amyloid-positive biopsies diagnosed with ATTR-CM.
- Most diagnosed patients presented with mild, asymptomatic disease.
- Higher detection rates of ATTR-CM in women compared to usual clinical pathways.
- Screening detected patients had less advanced disease than clinically diagnosed patients.
- Biopsy-guided screening may allow earlier detection of ATTR-CM.
Guideline-Based Recommendations
Diagnosis
- Use tenosynovial biopsies during carpal tunnel surgery for screening.
Management
- Refer patients with amyloid-positive biopsies for cardiac evaluation.
Monitoring & Follow-up
- Monitor biomarker levels and cardiac function in identified patients.
Risks
- Limitations include lack of long-term follow-up and generalizability due to all patients being White.
Patient & Prescribing Data
Patients undergoing surgery for idiopathic carpal tunnel syndrome.
Screening identified predominantly early-stage ATTR-CM, with most patients asymptomatic.
Clinical Best Practices
- Implement systematic age- and biopsy-guided screening during CTS surgery.
- Assess cardiac function and biomarkers in patients with amyloid-positive biopsies.
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