Bronchoscopic Measurement of Collateral Ventilation: State of the Art

Hübner, R; Witzenrath, Martin; Doellinger, Felix; Dittrich, Anna‐Maria; Kontogianni, Konstantina; Herth, Felix; Brock, Judith

doi:10.1159/000528419

Cited by 4 publications

(4 citation statements)

References 40 publications

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“…The reported diagnostic accuracy for visual-based fissure interpretation is 77%, for quantitative computed tomography software analysis 78.8–96.4% and for Chartis ® measurement 74–83.3%. 21 Discordant results are seen comparing visual analysis vs Chartis ® measurement in 31.9%. This leaves room for false-negative collateral ventilation results and could therefore also explain missing therapy benefit.…”

Section: Discussionmentioning

confidence: 91%

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Endobronchial Valve Replacements in Patients with Advanced Emphysema After Endoscopic Lung Volume Reduction

Brock¹,

Schuster²,

Böhmker³

et al. 2023

COPD

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Purpose Up to 41% of patients with endobronchial valve implantation need revision bronchoscopies and valve replacements most likely due to valve dysfunction or lack of benefit. So far, no data is available whether valve replacements lead to the desired lobar volume reduction and therapy benefit. Patients and Methods We conducted a single-center retrospective analysis of patients with endobronchial valve implantation and at least one valve replacement. Indications and number of revision bronchoscopies and valve replacements were evaluated. Therapy benefit regarding lung function and exercise capacity as well as development of complete lobar atelectasis was investigated and possible predictors identified. Results We identified 73 patients with 1–12 revision bronchoscopies and 1–5 valve replacements. The main indication for revision bronchoscopy in this group was lack of therapy benefit (44.2%). Lung function and exercise capacity showed improvements in about one-third of patients even years after the initial implantation. A total of 26% of all patients showed a complete lobar atelectasis at the end of the observation period, 56.2% had developed lung volume reduction. The logistic regression revealed the development of a previous complete lobar atelectasis as predictor for a complete lobar atelectasis at final follow-up. Oral cortisone long-term therapy was also shown as predictive factor. The probability for a final complete lobar atelectasis was 69.2% if a lobar atelectasis had developed before. Conclusion Valve replacements are more likely to be beneficial in patients who develop a re-aeration of a previous lobar atelectasis following valve implantation. Every decision for revision bronchoscopy must be taken carefully.

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Section: Discussionmentioning

confidence: 91%

“…measurement 74-83.3%. 21 Discordant results are seen comparing visual analysis vs Chartis ® measurement in 31.9%. This leaves room for false-negative collateral ventilation results and could therefore also explain missing therapy benefit.…”

mentioning

confidence: 91%

Endobronchial Valve Replacements in Patients with Advanced Emphysema After Endoscopic Lung Volume Reduction

Brock¹,

Schuster²,

Böhmker³

et al. 2023

COPD

Self Cite

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show abstract

“…Chartis is routinely performed in experienced emphysema centers. Chartis assessment is a complex and time-intensive procedure and if performed under procedural sedation requires an optimal interplay between sedation and breathing [8,9]. Koster et al published the "Volume Trend (VT) 20 method" for Chartis assessments, validating the distinction between CV+ and CV-phenotypes, as well as shortening the duration of the procedure.…”

mentioning

confidence: 99%

“…Chartis is routinely performed in experienced emphysema centres. Chartis assessment is a complex and time-intensive procedure and if performed under procedural sedation requires an optimal interplay between sedation and breathing [ 8 , 9 ]. K oster et al .…”

mentioning

confidence: 99%

VT20 method for Chartis assessment of collateral ventilation with flexible bronchoscopy under procedural sedation

Saccomanno,

Sgarbossa,

Pappe

et al. 2024

ERJ Open Res

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A novel case of simultaneous tracheal stenting and endobronchial valve (EBV) deployment for tracheal stenosis and persistent air leak guided by an endobronchial collateral ventilation assessment system and digital chest drain in malignant esophageal carcinoma

Gan,

Leong

2024

Respirology Case Reports

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Persistent air leak may complicate malignant disease of the thorax, causing significant morbidity and mortality. A 51‐year‐old male with a 30‐pack‐year history of smoking was diagnosed with metastatic esophageal carcinoma with invasion into the right upper lobe of the lung. He developed a large right hydropneumothorax complicated by empyema leading to persistent air leak despite the insertion of two chest drains. Computed Tomography imaging with 3‐dimensional reconstruction showed severe tracheal compression from the enlarging esophageal tumour as well as bronchopleural fistulas in the right upper lobe. Rigid bronchoscopy with metallic tracheal stenting was performed. This was followed by localization and quantification of air leak with an endobronchial collateral ventilation assessment system and a digital chest drain to guide endobronchial valve placement, in a single operative procedure. This novel combination of interventional bronchoscopy techniques enabled successful transition to an ambulatory chest drain and subsequent hospital discharge.

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Bronchoscopic Measurement of Collateral Ventilation: State of the Art

Cited by 4 publications

References 40 publications

Endobronchial Valve Replacements in Patients with Advanced Emphysema After Endoscopic Lung Volume Reduction

Endobronchial Valve Replacements in Patients with Advanced Emphysema After Endoscopic Lung Volume Reduction

VT20 method for Chartis assessment of collateral ventilation with flexible bronchoscopy under procedural sedation

A novel case of simultaneous tracheal stenting and endobronchial valve (EBV) deployment for tracheal stenosis and persistent air leak guided by an endobronchial collateral ventilation assessment system and digital chest drain in malignant esophageal carcinoma

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