Clinical study of safe tracheal suction pressure based on suction pressure applied to the catheter hole and cytological analysis of aspirated sputum

2021 Fiscal Year Final Research Report

• Project/Area Number: 17K12081
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fundamental nursing
• Research Institution: Gifu Shotoku Gakuen University (2020-2021); Iwate Prefectural University (2017-2019)
• Principal Investigator: HIRANO AKIHIKO 岐阜聖徳学園大学, 看護学部, 教授 (30305255)
• Project Period (FY): 2017-04-01 – 2022-03-31
• Keywords: 気管吸引 / 粘膜損傷 / 吸引圧 / 細胞組織学的分析 / 安全性 / 看護技術

Outline of Final Research Achievements

We collected sputum from ventilated patients by tracheal suction. Aspirated sputum samples were obtained from three patients. Three samples were obtained from one patient and one from the other two patients, for a total of five samples. Ciliated epithelial cells were observed in all samples. In one patient, tissue fragments thought to be basal cells, elastic fibers, and collagen fibers were found, whereas no such tissue fragments were noted in samples from the other two patients. Suction pressures ranged from -24 to -38 kPa. During the COVID-19 pandemic, data collection was impossible because no hospital was able to accommodate our research. Given that we did not know when this pandemic would come to an end, we abandoned this research. The relationship between suction pressure and mucosal injury was inconclusive because an adequate number of samples was not available.

Free Research Field

基礎看護学

Academic Significance and Societal Importance of the Research Achievements

コロナ禍のために研究データを十分に収集することができず研究成果を上げることができなかった。