IPBronch.com | Interventional Pulmonology

🎯 Background & Rationale

As the global population ages, the demand for diagnostic flexible bronchoscopy (FB) in patients aged ≥80 years is rising. Historically, clinicians have been hesitant to perform invasive procedures in this demographic due to concerns regarding physiological reserve, comorbidities, and higher risks of procedural complications. This study addresses the clinical controversy surrounding the safety and diagnostic yield of FB in octogenarians compared to younger cohorts.

👥 Study Design & Population

This is a retrospective comparative cohort study.

Population: 247 patients who underwent FB between April 2021 and March 2022.
Groups: An "Elderly" group (n=63, age ≥80) and a "Non-elderly" control group (n=184, age 18–79).
Exclusions: Patients on mechanical ventilation, those requiring bedside bronchoscopy, or those with incomplete data.

📈 Methodology & Rigor

The study utilized a retrospective chart review to compare diagnostic yield and complication rates (hypoxia, hemorrhage, pneumothorax, fever, pneumonia, and mortality). Statistical rigor was maintained using the Mann–Whitney U test for continuous variables and Chi-square/Fisher’s exact tests for categorical variables. The study is limited by its single-center design and potential selection bias, as the decision to perform the procedure was at the discretion of the attending physician.

🔬 Key Findings

Diagnostic Yield: No significant difference was observed between the elderly (57.1%) and non-elderly (56.0%) groups (p=0.884).
Safety: There were zero procedure-related deaths in either group.
Complications: No statistically significant differences were found in the incidence of hemorrhage (49.2% vs 50.5%), pneumothorax (3.2% vs 2.2%), or pneumonia (7.9% vs 4.3%).
Procedural Data: The elderly group had a lower median dose of midazolam (4 mg vs 5 mg, p<0.001) but similar procedural duration (18 minutes in both groups).

⚖️ Critical Appraisal

The study provides reassuring data that age alone should not be a contraindication for FB. However, the high rate of "bleeding" (defined as any bleeding requiring intervention) suggests a low threshold for reporting minor adverse events, which may inflate the complication profile. The study lacks data on long-term outcomes or patient-reported quality of life, and the retrospective nature means that "healthier" elderly patients were likely selected for the procedure, potentially masking risks in the frailest octogenarians.

💡 The Clinical Bottom Line

For the interventional pulmonologist, this study confirms that age ≥80 is not an independent predictor of poor outcomes or lower diagnostic yield during flexible bronchoscopy. Provided that standard safety protocols (such as appropriate sedation titration and oxygen supplementation) are followed, FB is a safe and effective diagnostic tool for the elderly. Clinicians should focus on individual physiological status and performance status (ECOG-PS) rather than chronological age when determining the risk-benefit ratio for bronchoscopic sampling.

Original Abstract

BACKGROUND: Flexible bronchoscopy is an indispensable tool in respiratory medicine. In the context of an aging society and increasing life expectancy, the number of elderly, often multimorbid patients is growing. This raises important questions regarding the safety of flexible bronchoscopy in this population. METHODS: In this retrospective study 1841 flexible bronchoscopies performed at two sites of Charité Universitätsmedizin Berlin in the years 2022 and 2023 were assessed and classified into two age groups: patients ≥ 70 years (elderly group) and patients < 70 years (non-elderly group). Safety was assessed by the occurrence of complications, and in a GEE-analysis potential risk factors of complications were identified. RESULTS: In total, 466 bronchoscopies in the elderly group and 1375 bronchoscopies in the non-elderly group were assessed. Bronchoscopies in the elderly group were performed more frequently under endotracheal intubation than in the non-elderly group (81.8% vs. 70.0%; p < 0.001). The overall complication rate was 2.3% with no significant differences between bronchoscopies of the elderly (1.7%) and non-elderly group (2.5%; p = 0.345). The most common complications were pneumothorax (0.9%) in the elderly group and hypoxia (0.8%) in the non-elderly group. Transbronchial forceps biopsy (p < 0.001; OR = 3.99) and endobronchial valve implantation (p = 0.002; OR = 6.44) were significantly associated with an increased risk of complications independent of age. DISCUSSION: In our study, flexible bronchoscopy proved to be a safe procedure with low complication rates in elderly and non-elderly patients. Age was also not associated with an increased risk of complications. Invasive interventions such as transbronchial forceps biopsies and endobronchial valve implantations were identified as risk factors independent of age. This underscores the importance of individualized risk minimizing strategies, in particular for complex and invasive procedures.