Exercise capacity, lung function, and quality of life after interventional bronchoscopy

Area of Science:

• Pulmonology
• Interventional Bronchoscopy
• Oncology

Background:

• Malignant airway obstruction significantly impacts patients with lung and metastatic cancers.
• It leads to considerable morbidity and mortality.
• Assessing treatment effects on exercise capacity and quality of life (QoL) is crucial.

Purpose of the Study:

• To prospectively evaluate the impact of bronchoscopic interventions on malignant airway obstruction.
• To specifically assess changes in exercise capacity and QoL post-intervention.

Main Methods:

• Prospective cohort study involving 37 patients with high-grade, symptomatic malignant airway obstruction.
• Assessments included spirometry, 6-minute walk test (6MWT), and QoL/dyspnea questionnaires (EORTC QLQ-C30 and LC-13).
• Data collected at baseline and at 30, 90, and 180 days post-intervention.

Main Results:

• Significant improvements observed at 30 days: 6MWT distance increased by 99.7m (p=0.002), FEV1 by 448ml (p<0.001), and FVC by 416ml (p=0.003).
• Clinically and statistically significant reductions in dyspnea scores reported using both QoL questionnaires (EORTC QLQ-C30 decrease of 39.9, p<0.001; LC-13 decrease of 28.2, p<0.001).

Conclusions:

• Bronchoscopic intervention for malignant airway obstruction leads to notable improvements.
• These benefits include enhanced exercise capacity (6MWT), lung function (spirometry), and reduced dyspnea.
• Positive effects are evident as early as 30 days post-procedure.