A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming device
Background. Accidental intraoperative hypothermia is a common and avoidable adverse event of the perioperative period and is associated with detrimental effects on multiple organ systems and postoperative patient outcomes. In a resource-limited environment, prevention of intraoperative hypothermia i...
| প্রধান লেখক: | , , |
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| বিন্যাস: | প্রবন্ধ |
| ভাষা: | English |
| প্রকাশিত: |
South African Medical Association
2022-11-01
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| মালা: | Southern African Journal of Critical Care |
| বিষয়গুলি: | |
| অনলাইন ব্যবহার করুন: | https://samajournals.co.za/index.php/sajcc/article/view/493 |
| _version_ | 1827360695616798720 |
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| author | K Wilson M Fourtounas C Anamourlis |
| author_facet | K Wilson M Fourtounas C Anamourlis |
| author_sort | K Wilson |
| collection | DOAJ |
| description | Background. Accidental intraoperative hypothermia is a common and avoidable adverse event of the perioperative period and is associated with detrimental effects on multiple organ systems and postoperative patient outcomes. In a resource-limited environment, prevention of intraoperative hypothermia is often challenging. Resourceful clinicians overcome these challenges through creative devices and frugal innovations.
Objective. To investigate the thermal performance of two Baragwanath Rewarming Appliances (BaRA) against that of the Hotline device to describe an optimal setup for these devices.
Methods. This was a quasi-experimental laboratory study that measured the thermal performance of two BaRA devices and the Hotline device under a number of scenarios. Independent variables including fluid type, flow rate, warming temperature and warming transit distance were sequentially altered and temperatures measured along the fluid stream. Change in temperature (ΔT) was calculated as the difference between entry and exit temperature for each combination of variables for each warming device.
Results. A total of 219 experiments were performed. At a temperature of 43.0°C and a transit distance of 200 cm, the BaRA A configuration either matched or exceeded the ΔT of the Hotline over all fluid type and flowrate combinations. The BaRA B configuration does not provide comparable thermal performance to the Hotline. Measured flowrates were noticeably slower than manufacturer-quoted values for all intravenous (IV) cannulae used.
Conclusion. A warm-water bath at 43.0°C with 200 cm of submerged IV tubing provides thermal performance comparable to the Hotline device, with all fluid type and flowrate combinations. |
| first_indexed | 2024-03-08T06:52:02Z |
| format | Article |
| id | doaj.art-6c631d2f81ec47a8b1ca46e44f98b8eb |
| institution | Directory Open Access Journal |
| issn | 1562-8264 2078-676X |
| language | English |
| last_indexed | 2024-03-08T06:52:02Z |
| publishDate | 2022-11-01 |
| publisher | South African Medical Association |
| record_format | Article |
| series | Southern African Journal of Critical Care |
| spelling | doaj.art-6c631d2f81ec47a8b1ca46e44f98b8eb2024-02-03T06:49:59ZengSouth African Medical AssociationSouthern African Journal of Critical Care1562-82642078-676X2022-11-019610110.7196/SAJCC.2022.v38i3.549497A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming deviceK Wilson0M Fourtounas1C Anamourlis2Department of Anaesthesiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South AfricaDepartment of Anaesthesiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South AfricaDepartment of Anaesthesiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South AfricaBackground. Accidental intraoperative hypothermia is a common and avoidable adverse event of the perioperative period and is associated with detrimental effects on multiple organ systems and postoperative patient outcomes. In a resource-limited environment, prevention of intraoperative hypothermia is often challenging. Resourceful clinicians overcome these challenges through creative devices and frugal innovations. Objective. To investigate the thermal performance of two Baragwanath Rewarming Appliances (BaRA) against that of the Hotline device to describe an optimal setup for these devices. Methods. This was a quasi-experimental laboratory study that measured the thermal performance of two BaRA devices and the Hotline device under a number of scenarios. Independent variables including fluid type, flow rate, warming temperature and warming transit distance were sequentially altered and temperatures measured along the fluid stream. Change in temperature (ΔT) was calculated as the difference between entry and exit temperature for each combination of variables for each warming device. Results. A total of 219 experiments were performed. At a temperature of 43.0°C and a transit distance of 200 cm, the BaRA A configuration either matched or exceeded the ΔT of the Hotline over all fluid type and flowrate combinations. The BaRA B configuration does not provide comparable thermal performance to the Hotline. Measured flowrates were noticeably slower than manufacturer-quoted values for all intravenous (IV) cannulae used. Conclusion. A warm-water bath at 43.0°C with 200 cm of submerged IV tubing provides thermal performance comparable to the Hotline device, with all fluid type and flowrate combinations.https://samajournals.co.za/index.php/sajcc/article/view/493frugal innovationwarming devicesperioperative hypothermia |
| spellingShingle | K Wilson M Fourtounas C Anamourlis A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming device Southern African Journal of Critical Care frugal innovation warming devices perioperative hypothermia |
| title | A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming device |
| title_full | A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming device |
| title_fullStr | A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming device |
| title_full_unstemmed | A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming device |
| title_short | A comparison of the warming capabilities of two Baragwanath rewarming appliances with the Hotline fluid warming device |
| title_sort | comparison of the warming capabilities of two baragwanath rewarming appliances with the hotline fluid warming device |
| topic | frugal innovation warming devices perioperative hypothermia |
| url | https://samajournals.co.za/index.php/sajcc/article/view/493 |
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