scholarly journals Use of endo-bronchial end-tidal CO2 test for location of the pleural air leakage in patients with intractable pneumothorax

2018 ◽  
Vol 12 ◽  
pp. 175346581875656
Author(s):  
Yi-Ming Zeng ◽  
Yun-Feng Chen ◽  
Hui-Huang Lin ◽  
Xiao-Bin Zhang

Background: Location of the affected bronchus of pleural air leaks is the most important step of trans-bronchoscopic bronchial occlusion for the treatment of intractable pneumothorax. The balloon occlusion test is the most commonly used technique, but has failed in some cases. The aim of the present study was: (1) to determine if endo-bronchial end-tidal CO2 (EtCO2) measurement can identify the affected bronchus that is the source of a persistent pleural air leak; and (2) to establish a methodology for endo-bronchial EtCO2 testing in locating affected bronchus in intractable pneumothorax. Methods: A total of 28 patients with intractable pneumothorax underwent bronchoscopy with (1) the balloon occlusion test for the identification of the affected bronchus; and (2) endo-bronchial EtCO2 measurement (EtCO2 test) at the orifices of the bronchus of the affected lung. The effectiveness of these two methods of affected bronchus identification were compared. The threshold EtCO2 (T-EtCO2) was determined. Results: The positive rates of locating the affected bronchus by the endo-bronchial EtCO2 test, balloon occlusion test, and combination of the two techniques were 60.7% (17/28), 64.3% (18/28) and 96.4% (27/28), respectively. The average differences in EtCO2 between the affected bronchus and the main carina, main bronchus, and non-affected bronchus were (in mmHg) 4.41 ± 1.99 (95% confidence interval: 3.5, 5.3), 4.73 ± 2.10 (3.80, 5.66 ) and 5.57 ± 2.53 (4.45, 6.69), respectively. Conclusions: (1) The endo-bronchial EtCO2 test is complementary to the balloon occlusion test of the leading bronchus. (2) A threshold (T-EtCO2) value of >5 mmHg is optimal for this technique.

2011 ◽  
Vol 36 (5) ◽  
pp. 392-393
Author(s):  
Floyd Daniel Dunnavant ◽  
Pradeep G. Bhambhvani ◽  
Katherine E. Perrien Lursen ◽  
Joseph A. Horton

1997 ◽  
Vol 6 (8) ◽  
pp. 530-535 ◽  
Author(s):  
Yoshinori Akiyama ◽  
Tatemi Todaka ◽  
Motoshi Sawada ◽  
Masafumi Morimoto ◽  
Shogo Nishi ◽  
...  

2016 ◽  
Vol 67 (13) ◽  
pp. 935 ◽  
Author(s):  
Hiroyuki Yamamoto ◽  
Toshiro Shinke ◽  
Hiromasa Otake ◽  
Tomofumi Takaya ◽  
Masaru Kuroda ◽  
...  

2009 ◽  
Vol 19 (2) ◽  
pp. 174-178 ◽  
Author(s):  
Koichi Haraguchi ◽  
Kiyohiro Houkin ◽  
Izumi Koyanagi ◽  
Tadashi Nonaka ◽  
Takeo Baba

2015 ◽  
Vol 24 (7) ◽  
pp. 1506-1512 ◽  
Author(s):  
Katsunori Asai ◽  
Hirotoshi Imamura ◽  
Yohei Mineharu ◽  
Shoichi Tani ◽  
Hidemitsu Adachi ◽  
...  

2015 ◽  
Vol 8 (7) ◽  
pp. 696-701 ◽  
Author(s):  
Byungjun Kim ◽  
Pyoung Jeon ◽  
Keonha Kim ◽  
Narae Yang ◽  
Sungtae Kim ◽  
...  

BackgroundEndovascular coil embolization for ophthalmic artery (OphA) aneurysms has the latent risk of occlusion of the OphA during the procedure, which can lead to loss of vision. We report clinical and angiographic results of endovascular treatment of OphA aneurysms together with the efficacy of the balloon occlusion test (BOT).MethodsFrom August 2005 to December 2013, 31 consecutive patients with 33 OphA aneurysms were treated in our institution. The patients were classified into two groups according to the location of the OphA within the aneurysmal sac. The BOT was performed in 28 patients using a hypercompliant balloon before endovascular coiling. Collateral circulation between the external carotid artery and the OphA was examined and visual function tests were performed before and after treatment. Patient demographics, angiographic and clinical outcomes were reviewed.ResultsAmong the 28 patients who underwent the BOT, intact collateral circulation was demonstrated in 26 (92.9%) patients and complete occlusion of the OphA was obtained in three patients after coiling. Retrograde filling of the OphA with choroidoretinal blush was observed on post-procedural angiography and no specific visual symptoms were reported during the follow-up period. Complete embolization was achieved in 30 lesions (96.8%) and only five patients (16.1%) had minor recanalization.ConclusionsEndovascular treatment of OphA aneurysms can be performed safely and effectively in conjunction with BOT. The BOT may give useful information to predict visual outcome in patients whose OphA is likely to be threatened by the coiling procedure and to determine the optimal treatment strategy.


2006 ◽  
Vol 46 (11) ◽  
pp. 541-543 ◽  
Author(s):  
Masanari ONIZUKA ◽  
Kiyoshi KAZEKAWA ◽  
Masanori TSUTSUMI ◽  
Tomonobu KODAMA ◽  
Hiroshi AIKAWA ◽  
...  

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