Bone mineral density in lung transplant candidates

Area of Science:

• Pulmonary Medicine
• Endocrinology
• Transplantation Surgery

Background:

• Bone mineral density (BMD) loss is a significant comorbidity affecting over 50% of patients awaiting lung transplantation (LT).
• This loss exacerbates the disease burden and potential complications in LT candidates.
• Pre-transplant evaluation often overlooks BMD assessment, leading to delayed diagnosis and management.

Purpose of the Study:

• To determine the prevalence of bone mineral density loss in patients evaluated for lung transplantation.
• To assess the frequency of BMD screening prior to LT referral.
• To highlight the importance of early identification for fracture risk management.

Main Methods:

• Retrospective analysis of 156 hospitalized patients evaluated for LT over three years (excluding those under 17).
• BMD was measured at the femoral neck and lumbar spine using World Health Organization criteria.
• Patient cohorts included chronic obstructive pulmonary disease (COPD), interstitial lung disease (ILD), and cystic fibrosis (CF).

Main Results:

• A high prevalence of low BMD was observed: 74.4% of all evaluated patients (116/156).
• Prevalence varied by condition: 84.4% in COPD, 67.3% in ILD, and 81% in CF patients.
• Pre-referral BMD screening was notably low across all groups (e.g., 3.1% in COPD, 16.4% in ILD, 14.3% in CF).

Conclusions:

• Bone mineral loss is highly prevalent in lung transplant candidates.
• BMD investigation prior to LT referral is critically scarce.
• Early identification and intervention are crucial for initiating prophylaxis and reducing post-transplant fracture risk.