Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patients
Abstract Background Underbody blankets have recently been launched and are used by anesthesiologists for surgical patients. However, the forced-air warming effect of underbody blankets is still controversial. The aim of this study was to determine the effect of forced-air warming by an underbody bla...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2019-04-01
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| Series: | BMC Anesthesiology |
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| Online Access: | http://link.springer.com/article/10.1186/s12871-019-0724-8 |
| _version_ | 1819110165739208704 |
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| author | Hiroshi Sumida Shigekazu Sugino Norifumi Kuratani Daisuke Konno Jun-ichi Hasegawa Masanori Yamauchi |
| author_facet | Hiroshi Sumida Shigekazu Sugino Norifumi Kuratani Daisuke Konno Jun-ichi Hasegawa Masanori Yamauchi |
| author_sort | Hiroshi Sumida |
| collection | DOAJ |
| description | Abstract Background Underbody blankets have recently been launched and are used by anesthesiologists for surgical patients. However, the forced-air warming effect of underbody blankets is still controversial. The aim of this study was to determine the effect of forced-air warming by an underbody blanket on body temperature in anesthetized patients. Methods We retrospectively analyzed 5063 surgical patients. We used propensity score matching to reduce the bias caused by a lack of randomization. After propensity score matching, the change in body temperature from before to after surgery was compared between patients who used underbody blankets (Under group) and those who used other types of warming blankets (Control group). The incidence of hypothermia (i.e., body temperature < 36.0 °C at the end of surgery) was compared between the two groups. A p value < 0.05 was considered to indicate statistical significance. Results We obtained 489 propensity score-matched pairs of patients from the two groups, of whom 33 and 63 had hypothermia in the Under and Control groups, respectively (odds ratio: 0.49, 95% confidence interval: 0.31–0.76, p = 0.0013). Conclusions The present study suggests that the underbody blanket may help reduce the incidence of intraoperative hypothermia and may be more efficient in warming anesthetized patients compared with other types of warming blankets. Trial registration UMIN Clinical Trials Registry (Identifier: UMIN000022909; retrospectively registered on June 27, 2016). |
| first_indexed | 2024-12-22T03:37:23Z |
| format | Article |
| id | doaj.art-5fb40f710de94d0a8f20fc57e1fa3fa5 |
| institution | Directory Open Access Journal |
| issn | 1471-2253 |
| language | English |
| last_indexed | 2024-12-22T03:37:23Z |
| publishDate | 2019-04-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Anesthesiology |
| spelling | doaj.art-5fb40f710de94d0a8f20fc57e1fa3fa52022-12-21T18:40:21ZengBMCBMC Anesthesiology1471-22532019-04-011911810.1186/s12871-019-0724-8Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patientsHiroshi Sumida0Shigekazu Sugino1Norifumi Kuratani2Daisuke Konno3Jun-ichi Hasegawa4Masanori Yamauchi5Department of Anesthesiology and Perioperative Medicine, Tohoku University School of MedicineDepartment of Anesthesiology and Perioperative Medicine, Tohoku University School of MedicineDepartment of Anesthesia, Saitama Children’s Medical CenterDepartment of Anesthesiology and Perioperative Medicine, Tohoku University School of MedicineDepartment of Anesthesia, Katta General HospitalDepartment of Anesthesiology and Perioperative Medicine, Tohoku University School of MedicineAbstract Background Underbody blankets have recently been launched and are used by anesthesiologists for surgical patients. However, the forced-air warming effect of underbody blankets is still controversial. The aim of this study was to determine the effect of forced-air warming by an underbody blanket on body temperature in anesthetized patients. Methods We retrospectively analyzed 5063 surgical patients. We used propensity score matching to reduce the bias caused by a lack of randomization. After propensity score matching, the change in body temperature from before to after surgery was compared between patients who used underbody blankets (Under group) and those who used other types of warming blankets (Control group). The incidence of hypothermia (i.e., body temperature < 36.0 °C at the end of surgery) was compared between the two groups. A p value < 0.05 was considered to indicate statistical significance. Results We obtained 489 propensity score-matched pairs of patients from the two groups, of whom 33 and 63 had hypothermia in the Under and Control groups, respectively (odds ratio: 0.49, 95% confidence interval: 0.31–0.76, p = 0.0013). Conclusions The present study suggests that the underbody blanket may help reduce the incidence of intraoperative hypothermia and may be more efficient in warming anesthetized patients compared with other types of warming blankets. Trial registration UMIN Clinical Trials Registry (Identifier: UMIN000022909; retrospectively registered on June 27, 2016).http://link.springer.com/article/10.1186/s12871-019-0724-8Forced-air warmingUnderbody blanketPropensity score matchingAnesthesia information management systemBody temperatureIntraoperative hypothermia |
| spellingShingle | Hiroshi Sumida Shigekazu Sugino Norifumi Kuratani Daisuke Konno Jun-ichi Hasegawa Masanori Yamauchi Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patients BMC Anesthesiology Forced-air warming Underbody blanket Propensity score matching Anesthesia information management system Body temperature Intraoperative hypothermia |
| title | Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patients |
| title_full | Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patients |
| title_fullStr | Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patients |
| title_full_unstemmed | Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patients |
| title_short | Effect of forced-air warming by an underbody blanket on end-of-surgery hypothermia: a propensity score-matched analysis of 5063 patients |
| title_sort | effect of forced air warming by an underbody blanket on end of surgery hypothermia a propensity score matched analysis of 5063 patients |
| topic | Forced-air warming Underbody blanket Propensity score matching Anesthesia information management system Body temperature Intraoperative hypothermia |
| url | http://link.springer.com/article/10.1186/s12871-019-0724-8 |
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