Original article
General thoracic
Timely Airway Stenting Improves Survival in Patients With Malignant Central Airway Obstruction

https://doi.org/10.1016/j.athoracsur.2010.06.093Get rights and content

Background

The survival of patients with malignant central airway obstruction is very limited. Although airway stenting results in significant palliation of symptoms, data regarding improved survival after stenting for advanced thoracic cancer with central airway obstruction are lacking.

Methods

Fifty patients received a total of 72 airway stents for malignant central airway obstruction over a two-year period at a single institution. The Medical Research Council (MRC) dyspnea scale and Eastern Cooperative Oncology Group (ECOG) performance status were used to divide patients into a poor performance group (MRC = 5, ECOG = 4) and an intermediate performance group (MRC ≤4, ECOG ≤3). The SPSS version 16.0 (SPSS Inc, Chicago, IL) and Microsoft Excel (Microsoft, Redmond, WA) were used to analyze the data. Survival curves were constructed using the Kaplan-Meier survival analysis method and a log-rank test was used to compare the survival distributions among different groups.

Results

Successful patency of the airway was achieved in all patients with no procedure-related mortality. Stenting resulted in significant improvement in MRC and ECOG performance scores (p < 0.01). Significantly improved survival was observed only in patients in the intermediate performance group compared with patients in the poor performance group (p < 0.05).

Conclusions

Airway stenting resulted in significant palliation of symptoms in both groups as evaluated by MRC dyspnea scale and ECOG performance status. Compared with historic controls, a significant survival advantage was seen only in the intermediate performance group. We postulate that timely stenting of the airway, before the morbid complications of malignant central airway obstruction have set in, results in improved survival.

Section snippets

Patient Population

A retrospective analysis was performed of all patients with symptomatic malignant central airway obstruction who underwent airway stenting with or without endoscopic tumor resection at a single institution over a two-year period (2007 to 2009). Institutional Review Board approval was obtained (IRB#09-026x). Fifty patients received a total of 72 tracheobronchial stents. The following patients were included.

  • Patients with central airway obstruction due to malignancy with at least 75% area

Results

Patient demographics, clinical characteristics, and operative findings are summarized in Table 1. Fifty patients received a total of 72 airway stents over a 2-year period, with 65 stents placed at the initial operation. Thirty-eight patients received a single stent, nine received 2 stents, and three patients received 3 stents at the initial operation. The mean age of the patients was 66 ± 13 years (range, 44 to 89 years) with 29 male and 21 female patients. All patients had either advanced

Comment

In both the intermediate and poor performance groups, airway stenting resulted in significant improvement in symptoms with an acceptably low complication rate. While these data have been reported previously [27, 28, 29, 30, 31, 32, 33], to date we have found no literature regarding the impact of tracheobronchial stenting on improved survival. Historically, survival of patients with untreated malignant central airway obstruction ranges from 1 to 2 months [20, 21]. Airway stenting with or without

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