Novel bronchofiberscopic catheter spray device allows effective anesthetic spray and sputum suctioning

Kenzaki, Koichiro; Hirose, Yukiko; Tamaki, Masanori; Shoji, Shuichi; Kondo, Kazuya; Mutsuda, T; Monden, Yasumasa

doi:10.1016/j.rmed.2004.01.002

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…The spray catheter allows for lidocaine aerosolization to cover a larger surface area than lidocaine injection through the working channel. 10,11 Thirty minutes was chosen as an evaluation end-point as the duration of topical lidocaine effect is variable and may range from 30 to 60 min. 12,13 Spray catheter lidocaine administration resulted in a better anaesthetized airway with fewer significant coughing episodes when compared with working channel injection.…”

Section: Discussionmentioning

confidence: 99%

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Pilot randomized study comparing two techniques of airway anaesthesia during curvilinear probe endobronchial ultrasound bronchoscopy (CP‐EBUS)

et al. 2010

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Section: Discussionmentioning

confidence: 99%

“…The spray catheter allows for lidocaine aerosolization to cover a larger surface area than lidocaine injection through the working channel 10,11 . Thirty minutes was chosen as an evaluation end‐point as the duration of topical lidocaine effect is variable and may range from 30 to 60 min 12,13 .…”

Section: Discussionmentioning

confidence: 99%

Pilot randomized study comparing two techniques of airway anaesthesia during curvilinear probe endobronchial ultrasound bronchoscopy (CP‐EBUS)

et al. 2010

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“…All bronchoscopes were from the Olympus Medical Systems, Tokyo, Japan. Before the bronchoscopy procedure, we anesthetized the pharyngeal area by spraying lidocaine (Spray Catheter, Olympus, Tokyo, Japan) and sedated the patients with midazolam and fentanyl (11).…”

Section: Methodsmentioning

confidence: 99%

Use of Ultrathin Bronchoscope on a Need Basis Improves Diagnostic Yield of Difficult-to-Approach Pulmonary Lesions

et al. 2020

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There are cases of peripheral lung nodules that are difficult to approach despite using ancillary diagnostic devices during multimodal bronchoscopy. The use of ultrathin bronchoscopes has shown superiority over standard thin bronchoscopes. We retrospectively evaluated whether substitution of the thin-bronchoscope by the ultrathin device during multimodal bronchoscopy improves lesion ultrasound visualization and diagnostic yield in patients with difficult-to-approach pulmonary lesions. The study comprised 44 out of 338 patients that underwent multimodal bronchoscopy at Matsusaka Municipal Hospital. The thin-bronchoscope with an external diameter of 4 mm was substituted by the ultrathin-bronchoscope with an external diameter of 3 mm when the radial endobronchial ultrasound showed that the probe position was not within the target lesion. The median diameter of the pulmonary tumors was 17.5 mm (range: 6.0–5.2.0 mm). The endobronchial ultrasound showed the probe's position adjacent to the lesion in 12 cases and no visible lesion in 32 cases using a thin-bronchoscope. However, the endobronchial ultrasound views changed from adjacent to the lesion to within the lesion in nine cases, from no visible lesion to within the lesion in 17 cases, and from no visible lesion to adjacent to the lesion in nine cases after bronchoscope substitution. After substitution, the diagnostic yield was 80.8% in cases with the radial probe within the target lesion, 72.7% in cases with the probe adjacent to the target lesion, and 0% in cases with no visible lesion. The overall diagnostic yield was 65.9% after bronchoscope substitution. The substitution of the thin bronchoscope by the ultrathin device on a need basis improves the position of the radial endobronchial ultrasound probe and diagnostic yield of pulmonary lesions during multimodal diagnostic bronchoscopy.

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“…11,12 The commonly used 5-mm bronchofiberscope is equivalent to the triple-lumen catheter, so the VSSS represents an alternative to the bronchofiberscope.…”

Section: Comparison Of the Vsss And The Bronchofiberscopementioning

confidence: 99%

Laboratory Test of a Visual Sputum Suctioning System

Lv¹,

Wu²,

Guo

et al. 2013

Respir Care

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BACKGROUND: Conventional sputum suctioning is a routine clinical practice, but complications may arise from the blind manipulation of the catheter. Recently, a visual sputum suctioning system (VSSS) was developed, and we tested this new system in a laboratory setting. METHODS: We used coagulant concentrations of 1.5% and 3.0% to simulate mucus and sputum. Conventional singlelumen and triple-lumen catheters were inserted separately into a beaker for sputum suctioning (15 s, 200 mm Hg). A micro-imaging fiber was integrated into the triple-lumen catheter to create the VSSS. The single-lumen catheter and the VSSS were inserted separately into the mouth cavity, the nasal cavity, the tracheostomy tube, and the endotracheal tube of a human analog model for further comparisons. RESULTS: As the suction channel of the triple-lumen catheter was reduced by 46.8%, the amount of simulant it suctioned was significantly less than that suctioned by the single-lumen catheter. However, under real-time guidance, the VSSS suctioned more simulant than the conventional single-lumen catheter in the human analog model. CONCLUSION: Sputum suctioning with the VSSS was feasible. Because of its real-time imaging guidance, the efficiency of the VSSS procedure was greater than that of the conventional single-lumen catheter. Therefore, this system may provide a new platform for sputum suctioning.

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Novel bronchofiberscopic catheter spray device allows effective anesthetic spray and sputum suctioning

Cited by 6 publications

References 7 publications

Pilot randomized study comparing two techniques of airway anaesthesia during curvilinear probe endobronchial ultrasound bronchoscopy (CP‐EBUS)

Pilot randomized study comparing two techniques of airway anaesthesia during curvilinear probe endobronchial ultrasound bronchoscopy (CP‐EBUS)

Use of Ultrathin Bronchoscope on a Need Basis Improves Diagnostic Yield of Difficult-to-Approach Pulmonary Lesions

Laboratory Test of a Visual Sputum Suctioning System

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