منابع مشابه
Determining collateral ventilation during bronchoscopy: unanswered questions.
In their recent review, Shah et al made an excellent presentation of the latest perspectives of lung volume reduction with endobronchial valves, emphasising the importance of collateral ventilation (CV) and fissure analysis on selecting proper candidates, as shown in the VENT studies. 3 The authors described representative cases of patients with positive and negative CV using the Chartis system...
متن کاملAssessment of intraparenchymal lung collateral ventilation.
We read with interest the paper of Marshall et al entitled 'Direct visualisation of collateral ventilation in COPD with hyper-polarised gas MRI'. 1 Collateral ventilation (CV) is defined as 'the ventilation of alveolar structures through passages that bypass the normal airway'. 2 This happens through the intra-alveolar pores of Kohn, the bronchio-loalveolar communications of Lambert and the int...
متن کاملPulmonary Fissure Integrity and Collateral Ventilation in COPD Patients
PURPOSE To investigate whether the integrity (completeness) of pulmonary fissures affects pulmonary function in patients with chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS A dataset consisting of 573 CT exams acquired on different subjects was collected from a COPD study. According to the global initiative for chronic obstructive lung disease (GOLD) criteria, these subje...
متن کاملCorrelation between collateral ventilation and interlobar lung fissures.
BACKGROUND New bronchoscopic techniques for end-stage emphysema treatment are nowadays available; the presence of interlobar collateral ventilation (CV) and interlobar lung fissures (ILF) is crucial for patient selection. OBJECTIVES Assessment of these variables has been reported previously, but it has never been anatomically validated in vivo. This is the purpose of our study. METHODS Twen...
متن کاملEndobronchial Valves for Emphysema without Interlobar Collateral Ventilation.
BACKGROUND Bronchoscopic lung-volume reduction with the use of one-way endobronchial valves is a potential treatment for patients with severe emphysema. To date, the benefits have been modest but have been hypothesized to be much larger in patients without interlobar collateral ventilation than in those with collateral ventilation. METHODS We randomly assigned patients with severe emphysema a...
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ژورنال
عنوان ژورنال: Respiration
سال: 2013
ISSN: 0025-7931,1423-0356
DOI: 10.1159/000348269