Adaptation Allowing for Bronchial Blocker Proximal Port Filtration during Lung Isolation for Patients with Airborne Precautions
Bibliographic record
Abstract
AIRBORNE precautions are recommended in patients with bacterial and viral infections transferred via aerosolization (including Mycobacterium tuberculosis, rubeola, varicella, influenza and coronavirus disease 2019 [COVID-19]). Surgical procedures requiring lung isolation during airborne precautions require adaptations to limit environmental contamination.1A double lumen tube or bronchial blocker may be used for lung isolation.2 An unfiltered, open airway is problematic during airborne precautions. Previously described, an antiviral filter should be placed on the surgical lung lumen of a double lumen tube (fig. 1).1,3After positioning, opening of the bronchial blocker proximal port to the atmosphere allows for surgical lung deflation. The Arndt Endobronchial Blocker Set (Cook Medical, USA) contains a continuous positive airway pressure 15-mm adaptor, which when inserted into the proximal port facilitates antiviral filter application (fig. 2A). The Fuji Uniblocker (Ambu Inc., USA) lacks a continuous positive airway pressure adaptor. The 15-mm connector from a 3.0 endotracheal tube fits within the proximal end of a 9.0 Fr Fuji Uniblocker (fig. 2B). Also, the Rapi-Fit Adaptor (Cook Medical) within the 19 Fr Aintree Intubation Catheter Set (Cook Medical) attaches around the proximal end of a bronchial blocker, providing a 15-mm connection (fig. 2C).Using these adaptive measures in six airborne precaution patients, lung isolation has been successful. Clinically, the low-resistance antiviral filter did not impede lung deflation using a double lumen tube or bronchial blocker. Although bronchial blocker proximal port aspiration may facilitate deflation, this may unnecessarily increase aerosolization risk. Supporting the antiviral filter prevents dislodgment of the double lumen tube or bronchial blocker. Using the techniques described, lung isolation in patients requiring airborne precautions has been successful.The authors declare no competing interests.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.009 | 0.005 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".