Clinical experience with a new endobrochial blocker: the EZ-blocker

Végh, Tamás; Juhász, Marianna; Enyedi, Ágnes; Takács, István; Kollár, Ján; Fülesdi, Béla

doi:10.1007/s00540-011-1315-0

Cited by 20 publications

(16 citation statements)

References 11 publications

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“…Although the difference in time for placement (median 37, 60.5, 86, 99 seconds for EZ, DLT, EBB‐right and EBB‐left respectively) seems clinically insignificant, these differences may be a surrogate for the degree of technical challenge encountered similar to the “ease of placement” score already discussed. If this is the case, it demonstrates the ease with which the EZ was placed compared with the DLT in these cadaveric specimens, and our observation seems to be in agreement with the experience reported in man and dogs …”

Section: Discussionsupporting

confidence: 91%

“…We were unable to intubate a 36‐kg Labrador retriever cadaver because the DLT was too short to reach the carina. Only a small number of cadaveric specimens were evaluated, and it is possible that evaluation of a larger cohort may have influenced the results, but, in general, our data agree with previous experience in dogs and in man that EZ is placed relatively simply onto the carina in dogs, but blockade of the right cranial lobar bronchus remains a challenge. Successful right‐sided blockade with EZ is still possible but may require more time and repositionings…”

Section: Discussionsupporting

confidence: 85%

“…Successful initial placement of the OLV device doesn't guarantee intraoperative stability, which is a substantial problem in clinical cases but could not be evaluated in this study . In man, a particular strength of the EZ and DLT is their ability to remain in position during changes in patient positioning as well as intraoperative manipulations . In these cadavers, types of suboptimal EZ positioning included incomplete balloon occlusion, the balloon being too far cranial in the mainstem bronchus, and prolapse of the balloon into the tracheal lumen.…”

Section: Discussionmentioning

confidence: 98%

“…The tip of the EZ can become trapped in the Murphy eye of the endotracheal tube as reported in a previous canine case report although it was not seen in this study. In man, placement of the EZ has been shown to be quicker, easier, and safer compared with other types of endobronchial blocker . For DLT, more manipulation and pressure is generally required, coupled with angulation of the tip to direct the tube into the left lobar bronchus.…”

Section: Discussionmentioning

confidence: 99%

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Cadaveric evaluation of fluoroscopy‐assisted placement of one‐lung ventilation devices for video‐assisted thoracoscopic surgery in dogs

et al. 2019

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Objective To evaluate the feasibility of fluoroscopy‐assisted placement of one‐lung ventilation (OLV) devices in dogs. Study design Experimental study. Sample population Canine cadavers (n = 8) weighing between 20.2 and 37.4 kg. Methods Thoracoscopic access with a two‐port approach was established to evaluate bilateral lung ventilation patterns. Advancement of a left‐sided Robertshaw double‐lumen endobronchial tube (DLT) and the EZ‐blocker (EZ) were evaluated under direct fluoroscopic guidance. Each dog also underwent bronchoscopy‐assisted placement of an Arndt endobronchial blocker (EBB). Time to initial placement, success of creating complete OLV (after initial placement attempt and after up to two repositionings), and ease of placement score were recorded. Device position was evaluated bronchoscopically after each fluoroscopy‐assisted placement attempt. Results Time to initial placement was significantly shorter for EZ than for DLT and EBB. The rate of successful placement after up to two repositioning attempts was 87.5%, 87.5%, and 100.0% on the right and 87.5%, 100.0%, 100.0% on the left for DLT, EZ, and EBB, respectively, and was not different between devices. Ease of placement scores were significantly higher for DLT compared with EZ and EBB on both the left and the right sides. Conclusion Fluoroscopy‐assisted placement of DLT and EZ appears feasible in canine cadavers. EZ‐blocker placement was efficient and technically easier than DLT, but positioning must be adapted for dogs. Bronchoscopy‐assisted placement of EBB remains highly successful. Clinical significance Fluoroscopy‐assisted placement of EZ and DLT is a useful alternative to bronchoscopy‐assisted placement of these OLV devices.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

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Cadaveric evaluation of fluoroscopy‐assisted placement of one‐lung ventilation devices for video‐assisted thoracoscopic surgery in dogs

et al. 2019

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“…Bilateral sempatektomi gibi ardışık akciğer izolasyonu gerektiren durumlarda repozisyon gerektirmeden kullanılabilir [21][22][23] . EZ BB'nin kolay yerleşmesi için ETT alt ucunun karinadan en az 4 cm yukarıda olması önerilmektedir [21] . EZ BB ile selektif lober blokaj yapılması mümkün değildir.…”

Section: Bronşial Blokerlerunclassified