記述言語：英語   出版者・発行元：Journal of Ultrasonography  

Aim: This study aimed to examine the feasibility and potential benefits of an optical see-through head-mounted display (OST-HMD) during real-time ultrasound-guided thoracentesis simulations. Material and methods: Six physicians performed a thoracentesis simulation using an OST-HMD and a wireless image transmission system. The time required, puncture needle visibility, pleural fluid collection success rate, and head movement during the procedure using a smart glass equipped with an inertial measurement unit were all recorded and compared with and without the HMD. Results: Study participants successfully extracted effusions in all procedures. The use of OST-HMD did not significantly affect the time of the procedure, but notably decreased the horizontal and vertical head movements during the procedure. Conclusions: The study demonstrated the feasibility of using an OST-HMD in a simulated real-time ultrasound-guided thoracentesis procedure and showed the potential of HMD in thoracentesis to improve ergonomics and accuracy. Further research is necessary to confirm these findings.

DOI： 10.15557/jou.2024.0012

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PubMed

記述言語：英語   出版者・発行元：Surgical Innovation  

DOI： 10.1177/15533506231160201

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PubMed

担当区分：責任著者   記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.18907/jjsre.45.5_339

担当区分：責任著者   記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： https://doi.org/10.18907/jjsre.45.1_37

出版者・発行元：Surgical Innovation  

Background/need. The increases in reference images and information during bronchoscopy using virtual bronchoscopic navigation (VBN) and fluoroscopy has potentially created the need for support using a head-mounted display (HMD) because bronchoscopists feel difficulty to see displays that are at a distance from them and turn their head and body in various directions. Methodology and device description. The binocular see-through Moverio BT-35E Smart Glasses can be connected via a high-definition multimedia interface and have a 720p high-definition display. We developed a system that converts fluoroscopic (live and reference), VBN, and bronchoscopic image signals through a converter and references them using the Moverio BT-35E. Preliminary results. We performed a virtual bronchoscopy-guided transbronchial biopsy simulation using the system. Four experienced pulmonologists performed a simulated bronchoscopy of 5 cases each with the Moverio BT-35E glasses, using bronchoscopy training model. For all procedures, the bronchoscope was advanced successfully into the target bronchus according to the VBN image. None of the operators reported eye or body fatigue during or after the procedure. Current status. This small-scale simulation study suggests the feasibility of using a HMD during bronchoscopy. For clinical use, it is necessary to evaluate the safety and usefulness of the system in larger clinical trials in the future.

DOI： 10.1177/15533506211068928

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PubMed

記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Journal of Thoracic Disease  

Background: Radial endobronchial ultrasonography transbronchial biopsy with and without a guide sheath is a useful method for diagnosing peripheral pulmonary lesions (PPLs). However, the diagnostic yield and complications of radial endobronchial ultrasonography transbronchial biopsy for PPLs remains elusive in patients with interstitial lung disease (ILD). Methods: We retrospectively analysed 431 patients (69 with and 362 without ILD) who underwent radial endobronchial ultrasonography with a guide sheath transbronchial biopsy (EBUS-GS TBB) for PPLs from April 1, 2011, to March 31, 2020. We investigated the diagnostic yield and complications of the procedure for PPLs and compared them between patients with and without ILD. We also evaluated the factors contributing to successful diagnosis. Results: The diagnostic yield of radial endobronchial ultrasonography in patients with ILD was significantly lower than in those without ILD (62.3% vs. 75.4%, P=0.024). Multivariate analysis showed that the presence of ILD as background lung [odds ratio (OR) =0.517], probe position within the lesion (OR =4.654), and the presence of solid lesion (OR =1.946) significantly affected the diagnostic yield of PPLs. There was a significant difference in the rate of pneumothorax between the patients with ILD and those without ILD (4.3% vs. 0.6%, P=0.031). Conclusions: The presence of ILD as the background lung significantly affected the diagnostic yield of PPLs with radial EBUS-GS TBB. Regarding the complications, pneumothorax occurred more frequently in patients with ILD than in those without ILD.

DOI： 10.21037/jtd-22-809

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記述言語：英語   出版者・発行元：Respirology  

Background and objective: Bronchoscopy is an airborne particle-generating procedure. However, few methods for safe bronchoscopy have been developed. To reduce airborne particles during bronchoscopy, we created an ‘e-mask’, which is a simple, disposable mask for patients. Our objective was to evaluate the e-mask's protective ability against airborne particles and to assess respiratory adverse events and complications. Methods: Patients with stage 2–4 chronic obstructive pulmonary disease were excluded. We performed visualization and quantifying experiments on airborne particles with and without the e-mask. We prospectively evaluated whether wearing the e-mask during bronchoscopy was associated with the incidence of patients requiring >5 L/min oxygen to maintain >90% oxygen saturation, and patients with >45 mm Hg end-tidal carbon dioxide (EtCO2) elevation, in addition to complications, compared to historical controls. Results: In the visualization experiment, more than ten thousand times of airborne particles were generated without the e-mask than with the e-mask. The volume of airborne particles was significantly reduced with the e-mask, compared to that without the e-mask (p = 0.011). Multivariate logistic regression analysis revealed that wearing the e-mask had no significant effect on the incidence of patients requiring >5 L/min oxygen to maintain >90% oxygen saturation, (p = 0.959); however, wearing the e-mask was a significant factor in >45 mm Hg EtCO2 elevation (p = 0.026). No significant differences in complications were observed between the e-mask and control groups (5.8% vs. 2.5%, p = 0.395). Conclusion: Wearing the e-mask during bronchoscopy significantly reduced the generation of airborne particles during bronchoscopy without increasing complications.

DOI： 10.1111/resp.14321

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記述言語：英語   出版者・発行元：Respirology Case Reports  

A 59-year-old woman complained of continuous dyspnea. Computed tomography revealed multiple pulmonary nodules, mildly small enlarged mediastinal lymph nodes and a nodule in the liver segment 8. Her dyspnea worsened with respiratory failure 4 days after presentation. Liver biopsy was not possible as she could not hold her breath; thus, we performed bronchoscopy. For biopsy, the pulmonary nodules with a positive bronchus sign were preferred over the mildly small enlarged mediastinal lymph nodes. Bronchoscopy under non-invasive positive pressure ventilation (NPPV) or high-flow nasal cannula (HFNC) was impossible because of the lack of equipment. Therefore, we biopsied via thin bronchoscope through nasal cavity under a high-concentration oxygen mask. Pathological findings revealed epidermal growth factor receptor mutation-positive lung adenocarcinoma. For patients with respiratory failure who cannot undergo bronchoscopy under NPPV or HFNC, thin bronchoscopy through the nasal cavity under a high-concentration oxygen mask may be clinically useful to prevent hypoxaemia during the procedure.

DOI： 10.1002/rcr2.1007

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記述言語：英語   出版者・発行元：Journal of Hospital Infection  

DOI： 10.1016/j.jhin.2022.01.022

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PubMed

担当区分：筆頭著者   記述言語：英語  

DOI： https://doi.org/10.1111/crj.13324

担当区分：筆頭著者   記述言語：英語  

DOI： https://doi.org/10.1002/rcr2.710

担当区分：筆頭著者   記述言語：英語  

DOI： 10.1002/rcr2.1007.

記述言語：英語  

DOI： https://doi.org/10.1016/j.rmcr.2020.101028

担当区分：筆頭著者   記述言語：英語  

記述言語：英語  

DOI： https://doi.org/10.1016/j.cllc.2019.07.006

担当区分：筆頭著者   記述言語：英語  

DOI： https://doi.org/10.1002/rcr2.309

担当区分：筆頭著者   記述言語：日本語