Nasal breathing is superior to oral breathing when performing and undergoing transnasal endoscopy: a randomized trial.
Endoscopy
; 55(3): 207-216, 2023 03.
Article
em En
| MEDLINE
| ID: mdl-35835446
ABSTRACT
BACKGROUND:
Transnasal endoscopy presents a technical difficulty when inserting the flexible endoscope. It is unclear whether a particular breathing method is useful for transnasal endoscopy. Therefore, we conducted a prospective randomized controlled trial to compare endoscopic operability and patient tolerance between patients assigned to nasal breathing or oral breathing groups.METHODS:
198 eligible patients were randomly assigned to undergo transnasal endoscopy with nasal breathing or with oral breathing. Endoscopists and patients answered questionnaires on the endoscopic operability and patient tolerance using a 100-mm visual analog scale ranging from 0 (non-existent) to 100 (most difficult/unbearable). The visibility of the upper-middle pharynx was recorded.RESULTS:
Patient characteristics did not differ significantly between the groups. Nasal breathing showed a higher rate of good visibility of the upper-middle pharynx than oral breathing (91.9â% vs. 27.6â%; Pâ<â0.001). Nasal breathing showed lower mean [SD] scores than oral breathing in terms of overall technical difficulty (21.0 [11.4] vs. 35.4 [15.0]; Pâ<â0.001). Regarding patient tolerance, nasal breathing showed lower scores than oral breathing for overall discomfort (22.1 [18.8] vs. 30.5 [20.9]; Pâ=â0.004) and other symptoms, including nasal and throat pain, choking, suffocating, gagging, belching, and bloating (all Pâ<â0.05). The pharyngeal bleeding rate was lower in the nasal breathing group than in the oral breathing group (0â% vs. 9.2â%; Pâ=â0.002).CONCLUSIONS:
Nasal breathing is superior to oral breathing for those performing and undergoing transnasal endoscopy. Nasal breathing led to good visibility of the upper-middle pharynx, improved endoscopic operability, and better patient tolerance, and was safer owing to decreased pharyngeal bleeding.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Endoscopia Gastrointestinal
/
Endoscopia
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Japão