The Primary Indication for Lung Transplantation Is a Marker of Resource Utilization

Area of Science:

• Pulmonology
• Transplant Surgery
• Health Economics

Background:

• The primary indication for lung transplantation (LT) may influence resource utilization due to varying pathophysiology, complication risks, and perioperative needs.
• Understanding these differences is crucial for optimizing healthcare resource allocation in LT programs.

Purpose of the Study:

• To investigate the association between the primary diagnosis for lung transplantation and inpatient resource utilization, specifically length of stay (LOS) and hospitalization costs.
• To determine if the primary indication for LT serves as a predictive marker for resource consumption.

Main Methods:

• Analysis of adult LT recipients from the National Inpatient Sample (2005-2020).
• Patients were categorized by primary diagnosis: obstructive (COPD), restrictive (IPF), cystic fibrosis (CF), and pulmonary vascular (IPAH).
• Comparison of LOS and inflation-adjusted hospitalization costs across diagnostic groups using multivariable generalized linear regression.

Main Results:

• IPAH and CF recipients experienced the longest median unadjusted hospital stays (22 and 20 days, respectively), while COPD recipients had the shortest (16 days).
• IPF recipients incurred the highest unadjusted hospitalization costs ($157,228), followed closely by IPAH ($151,999) and CF ($149,402).
• Adjusted analyses revealed significantly longer LOS for IPAH recipients compared to IPF (8.4 days longer), and shorter LOS for COPD recipients (-1.8 days).

Conclusions:

• Idiopathic pulmonary arterial hypertension (IPAH) and cystic fibrosis (CF) are associated with prolonged hospitalizations post-lung transplant.
• Idiopathic pulmonary fibrosis (IPF) is linked to the highest inpatient costs among the studied primary indications.
• The primary indication for lung transplantation is a significant factor in predicting resource utilization, impacting both length of stay and cost.