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- W2014764259 abstract "Endobronchial valves (EBV) are a less invasive approach in the palliation of patients with emphysema. However, they are reliant on absence of collateral ventilation between pulmonary lobes for adequate functional outcome. Chartis catheters are used to confirm absence of collateral ventilation prior to valve implantation. We wanted to look into EBV failure in our practice. In a single surgeon practice, Chartis catheter assessment was performed in 19 patients and EBV implanted in 18 patients without collateral ventilation. Interval check bronchoscopy was performed in 10 patients (55.6% of patients) who failed to show persistent or adequate atelectasis or had recurrent symptoms with no clinical improvement. Of the 10 patients who had a check bronchoscopy, 8 patients had endobronchial valves that continued to expel air on ventilation. In 7 (38.9%) of these patients the EBV positions were satisfactory (indicating there was collateral ventilation) and therefore all their EBV were removed. One patient (5.6%) had removal of one EBV as it had become partially dislodged resulting in reinflation and recurrent symptoms. The initial Chartis catheter assessment confirming absence of collateral ventilation was followed by successful implantation of EBV. However, subsequent failure in some patients (38.9%) suggests the presence and recruitment of “latent” collateral ventilation channels. There is a potential for discussion of alternative investigations before implanting valves to ensure higher success rates. All authors have declared no conflicts of interest." @default.
- W2014764259 created "2016-06-24" @default.
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- W2014764259 date "2013-07-01" @default.
- W2014764259 modified "2023-09-27" @default.
- W2014764259 title "P-161ENDOBRONCHIAL VALVES AND THE ROLE OF LATENT COLLATERAL VENTILATION" @default.
- W2014764259 doi "https://doi.org/10.1093/icvts/ivt288.161" @default.
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