How to improve the endoscopic view of the hypopharynx: Validation of our novel modified Killian's Method to expose the hypopharynx in 20 subjects

Sakai, Akihiro; Okami, Kenji; Ebisumoto, Koji; Yamamoto, Hikaru; Saito, Kosuke; Maki, Daisuke; Furuya, Hidekazu; Iida, Masahiro

doi:10.1111/coa.13172

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…Recent data show that this proportion of patients can be further increased up to 85% by a maneuver described by Sakai et al [6, 13] as the modified Killian’s method. For this method, Murono et al [9] indicate a visibility score of up to 3.6 in a group of 57 patients who had been followed up for hypopharyngeal or laryngeal disease.…”

Section: Discussionmentioning

confidence: 99%

Enhancing Visibility of the Hypopharyngeal-Esophageal Region by Introduction of a Physiological Eructation Maneuver

et al. 2019

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Background: In routine medical examination, the hypopharyngeal-esophageal area (HER) is difficult to assess due to its position and anatomical complexity. The purpose of this study was to evaluate the feasibility of a volitional eructation maneuver during transnasal flexible laryngoscopy and its influence on the visibility of the HER. Methods: Twenty healthy volunteers underwent flexible laryngoscopy. Once the larynx was freely visible during laryngoscopy, the subjects were asked to trigger a “burp.” The volitional belching during the study was assisted by drinking a carbonated cold drink. The triggered relaxation of the upper esophageal sphincter along with the widening of the hypopharynx region was recorded and subsequently analyzed frame by frame. Results: Out of 20 volunteers, 16 (80%) were able to volitionally induce an eructation. Significant widening of the hypopharynx region up to the relaxant upper esophageal sphincter could be recorded. The structures were clearly visible in the offline analysis. In 13 (81%) of the 16 subjects who could induce an eructation, the upper esophageal sphincter was partially visible or free for full inspection. Conclusion: The eructation method as a simple physiological function can be used as a complementary method during flexible transnasal endoscopy to enhance visibility of the entire hypopharynx region as well as the upper esophageal sphincter.

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Section: Discussionmentioning

confidence: 99%

Enhancing Visibility of the Hypopharyngeal-Esophageal Region by Introduction of a Physiological Eructation Maneuver

et al. 2019

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“…Views of the pyriform sinus, post-cricoid area, and upper esophageal sphincter were scored according to previous reports by Williams et al as follows: 0, not observed; 1, partially observed; 2, and well observed. 7,11 Scores for visualization of the pyriform sinus, post-cricoid area, and upper esophageal sphincter with versus without the immobilization device were compared.…”

Section: Mk Methods With the Body Immobilization Devicementioning

confidence: 99%

Application of an Immobilization Device for the Modified Killian’s Method

et al. 2021

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Value of high‐definition laryngoscopy in the diagnosis of pyriform sinus fistula

Zhang,

Tian

2024

World j. otorhinolaryngol.-head neck surg.

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ObjectiveEfficient methods are available to diagnose pyriform sinus fistula (PSF). This study aimed to assess the value of high‐definition laryngoscopy (HDL) in the diagnosis of PSF.MethodsFrom January 2017 to December 2019, patients with PSF were enrolled into this study. HDL was performed without general anesthesia. Laryngoscopy characteristics were analyzed. An inner orifice in the pyriform fossa indicated the presence of PSF. The diagnostic accuracy of HDL was compared to that of barium swallow.ResultsA total of 56 patients (33 males and 23 females, ages 2–57 years) were included. The positive predictive value of HDL was 96.4%, and that of barium swallow was 89.2%. Compared to pronouncing the English letter “e,” anterior cervical skin traction plus Valsalva maneuver could offer a clearer view of the inner orifice in the pyriform fossa (χ2 = 11.187, p < 0.05). Nevertheless, compared to barium swallow, HDL showed no statistically significant difference in diagnosing PSF (χ2 = 2.598, p > 0.05).ConclusionsBoth HDL and barium swallow have their advantages and are complementary in diagnosing PSF. Their combination may achieve a higher diagnostic accuracy for PFS.

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How to improve the endoscopic view of the hypopharynx: Validation of our novel modified Killian's Method to expose the hypopharynx in 20 subjects

Cited by 7 publications

References 10 publications

Enhancing Visibility of the Hypopharyngeal-Esophageal Region by Introduction of a Physiological Eructation Maneuver

Enhancing Visibility of the Hypopharyngeal-Esophageal Region by Introduction of a Physiological Eructation Maneuver

Application of an Immobilization Device for the Modified Killian’s Method

Value of high‐definition laryngoscopy in the diagnosis of pyriform sinus fistula

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