Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro Model
There has been concern over the effect of vigorous bubbling on the delivery pressure during the operation of the bubble nasal continuous positive airway pressure (CPAP) system. We investigated the relationship between intra-tubing pressure changes and flow rates in a closed bubble CPAP system in vit...
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| Format: | Article |
| Language: | English |
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Elsevier
2010-08-01
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| Series: | Pediatrics and Neonatology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1875957210600411 |
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| author | Tsyr-Yuh Ho Shan-Fu Ou Shih-Hui Huang Chi-Ning Lee Luo-Ping Ger Kai-Sheng Hsieh Hui-Ying Cheng Wei Yang Lee Ken-Pen Weng |
| author_facet | Tsyr-Yuh Ho Shan-Fu Ou Shih-Hui Huang Chi-Ning Lee Luo-Ping Ger Kai-Sheng Hsieh Hui-Ying Cheng Wei Yang Lee Ken-Pen Weng |
| author_sort | Tsyr-Yuh Ho |
| collection | DOAJ |
| description | There has been concern over the effect of vigorous bubbling on the delivery pressure during the operation of the bubble nasal continuous positive airway pressure (CPAP) system. We investigated the relationship between intra-tubing pressure changes and flow rates in a closed bubble CPAP system in vitro.
Methods: Using an experimental (in vitro) model, the distal connecting tube of the CPAP system was immersed under the water seal to a depth of 5 cm. Sixteen different flow rates, ranging from 2 L/min to 20 L/min, were tested. The procedure was repeated 10 times at each flow rate, and the intra-tubing pressure was recorded.
Results: The intra-tubing pressure within the model increased as the air flow rates were adjusted from 2 L/min to 20 L/min. The relationship was represented by the following equation, pressure (cmH2O) = 5.37 + 0.15 × flow rate (L/min) (R2 = 0.826, p < 0.001).
Conclusion: These results demonstrated that the intra-tubing pressure in a bubble CPAP system was highly correlated with flow rate in vitro. |
| format | Article |
| id | doaj-art-8a07ce7bd1db41f790bf6c2e819ac83f |
| institution | OA Journals |
| issn | 1875-9572 |
| language | English |
| publishDate | 2010-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Pediatrics and Neonatology |
| spelling | doaj-art-8a07ce7bd1db41f790bf6c2e819ac83f2025-08-20T01:55:40ZengElsevierPediatrics and Neonatology1875-95722010-08-0151421421810.1016/S1875-9572(10)60041-1Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro ModelTsyr-Yuh Ho0Shan-Fu Ou1Shih-Hui Huang2Chi-Ning Lee3Luo-Ping Ger4Kai-Sheng Hsieh5Hui-Ying Cheng6Wei Yang Lee7Ken-Pen Weng8Division of Pediatrics, Zuoying Armed Forces General Hospital, Kaohsiung, TaiwanDivision of Pediatrics, Zuoying Armed Forces General Hospital, Kaohsiung, TaiwanDepartment of Nursing, Fooying University, Kaohsiung County, TaiwanDivision of Pediatrics, Zuoying Armed Forces General Hospital, Kaohsiung, TaiwanDepartment of Pediatrics and Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, National Yang-Ming University, Taipei, TaiwanDepartment of Pediatrics and Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, National Yang-Ming University, Taipei, TaiwanDepartment of Nursing, Zuoying Armed Forces General Hospital, Kaohsiung, TaiwanDepartment of Pediatrics, Kaohsiung Municipal United Hospital, Kaohsiung, TaiwanDivision of Pediatrics, Zuoying Armed Forces General Hospital, Kaohsiung, TaiwanThere has been concern over the effect of vigorous bubbling on the delivery pressure during the operation of the bubble nasal continuous positive airway pressure (CPAP) system. We investigated the relationship between intra-tubing pressure changes and flow rates in a closed bubble CPAP system in vitro. Methods: Using an experimental (in vitro) model, the distal connecting tube of the CPAP system was immersed under the water seal to a depth of 5 cm. Sixteen different flow rates, ranging from 2 L/min to 20 L/min, were tested. The procedure was repeated 10 times at each flow rate, and the intra-tubing pressure was recorded. Results: The intra-tubing pressure within the model increased as the air flow rates were adjusted from 2 L/min to 20 L/min. The relationship was represented by the following equation, pressure (cmH2O) = 5.37 + 0.15 × flow rate (L/min) (R2 = 0.826, p < 0.001). Conclusion: These results demonstrated that the intra-tubing pressure in a bubble CPAP system was highly correlated with flow rate in vitro.http://www.sciencedirect.com/science/article/pii/S1875957210600411bubble CPAPflowpressure |
| spellingShingle | Tsyr-Yuh Ho Shan-Fu Ou Shih-Hui Huang Chi-Ning Lee Luo-Ping Ger Kai-Sheng Hsieh Hui-Ying Cheng Wei Yang Lee Ken-Pen Weng Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro Model Pediatrics and Neonatology bubble CPAP flow pressure |
| title | Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro Model |
| title_full | Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro Model |
| title_fullStr | Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro Model |
| title_full_unstemmed | Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro Model |
| title_short | Effects of Flow Rate on Delivery of Bubble Continuous Positive Airway Pressure in an In Vitro Model |
| title_sort | effects of flow rate on delivery of bubble continuous positive airway pressure in an in vitro model |
| topic | bubble CPAP flow pressure |
| url | http://www.sciencedirect.com/science/article/pii/S1875957210600411 |
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