Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia
Jian-Xin Ni,1 Jia-Li Feng,2 Sheng-Jie Yao,1 Li-Feng Ni,1 Shao-Bo Song,1 Cong-Zhong Song,1 Xiao-Wei Qian,3 Zhong Mei,1,3,* Jing Yu1,* 1Department of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People’s Republic of Ch...
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| Format: | Article |
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Dove Medical Press
2022-03-01
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| Series: | Drug Design, Development and Therapy |
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| Online Access: | https://www.dovepress.com/determination-of-the-dose-response-relationship-of-epidural-dexmedetom-peer-reviewed-fulltext-article-DDDT |
| _version_ | 1818915679070322688 |
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| author | Ni JX Feng JL Yao SJ Ni LF Song SB Song CZ Qian XW Mei Z Yu J |
| author_facet | Ni JX Feng JL Yao SJ Ni LF Song SB Song CZ Qian XW Mei Z Yu J |
| author_sort | Ni JX |
| collection | DOAJ |
| description | Jian-Xin Ni,1 Jia-Li Feng,2 Sheng-Jie Yao,1 Li-Feng Ni,1 Shao-Bo Song,1 Cong-Zhong Song,1 Xiao-Wei Qian,3 Zhong Mei,1,3,* Jing Yu1,* 1Department of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People’s Republic of China; 2Department of Obstetrics, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People’s Republic of China; 3Department of Anesthesiology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China*These authors contributed equally to this workCorrespondence: Zhong Mei; Jing Yu, Department of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Yucai North Road 728, Xiaoshan, Hangzhou, 311202, People’s Republic of China, Tel +86-571-83865707, Email meizhong@zju.edu.cn; yujing985@163.comBackground: The safety and efficacy of dexmedetomidine for epidural labor analgesia have been reported in numerous literatures, but the optimal dose has not been fully determined. The objective of this study was to determine the dose-response relationship of epidural dexmedetomidine (combined with ropivacaine) for labor analgesia.Methods: A total of 120 full-term laboring parturients requesting epidural labor analgesia were enrolled in the study from July 5, 2020 to September 22, 2021. The parturients were randomly assigned to receive 0, 0.1, 0.2, 0.3, 0.4 or 0.5 μg/mL dexmedetomidine combined with 0.075% ropivacaine epidurally. An effective dose was defined as numerical rating scale (NRS) pain score ≤ 3 at 30-minutes of epidural drug injection. The dose-response relationship of dexmedetomidine (with ropivacaine) for epidural labor analgesia was performed using probit regression. The median effective dose (ED50) and the 95% effective dose (ED95) values for epidural dexmedetomidine combined with 0.075% ropivacaine with 95% confidence intervals (CIs) were derived by interpolation.Results: The estimated values of ED50 and ED95 with 95% CIs for epidural dexmedetomidine (combined with 0.075% ropivacaine) were 0.085 (0.015 to 0.133) μg/mL and 0.357 (0.287 to 0.493) μg/mL, respectively. No differences were found among groups for sensory block level, number of parturients with Bromage score > 0, total dosage of analgesics, cesarean delivery rate, fetal birth weight, Apgar score at 1-minute, Apgar score at 5-minutes and adverse effects. Compared with other groups, group dexmedetomidine 0.5 μg/mL had a longer duration of the first stage of labor.Conclusion: The ED50 and ED95 values of dexmedetomidine for epidural labor analgesia was 0.085 and 0.357 μg/mL under the conditions of this study. Dexmedetomidine is a suitable adjuvant for epidural labor analgesia.Keywords: epidural, labor analgesia, dexmedetomidine, the dose-response relationship, ED50, ED95 |
| first_indexed | 2024-12-20T00:06:06Z |
| format | Article |
| id | doaj.art-05ccb2420d6743db8c620430253dba70 |
| institution | Directory Open Access Journal |
| issn | 1177-8881 |
| language | English |
| last_indexed | 2024-12-20T00:06:06Z |
| publishDate | 2022-03-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | Drug Design, Development and Therapy |
| spelling | doaj.art-05ccb2420d6743db8c620430253dba702022-12-21T20:00:39ZengDove Medical PressDrug Design, Development and Therapy1177-88812022-03-01Volume 1660961873496Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor AnalgesiaNi JXFeng JLYao SJNi LFSong SBSong CZQian XWMei ZYu JJian-Xin Ni,1 Jia-Li Feng,2 Sheng-Jie Yao,1 Li-Feng Ni,1 Shao-Bo Song,1 Cong-Zhong Song,1 Xiao-Wei Qian,3 Zhong Mei,1,3,* Jing Yu1,* 1Department of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People’s Republic of China; 2Department of Obstetrics, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Hangzhou, People’s Republic of China; 3Department of Anesthesiology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China*These authors contributed equally to this workCorrespondence: Zhong Mei; Jing Yu, Department of Anesthesiology, Affiliated Xiaoshan Hospital, Hangzhou Normal University (Zhejiang Xiaoshan Hospital), Yucai North Road 728, Xiaoshan, Hangzhou, 311202, People’s Republic of China, Tel +86-571-83865707, Email meizhong@zju.edu.cn; yujing985@163.comBackground: The safety and efficacy of dexmedetomidine for epidural labor analgesia have been reported in numerous literatures, but the optimal dose has not been fully determined. The objective of this study was to determine the dose-response relationship of epidural dexmedetomidine (combined with ropivacaine) for labor analgesia.Methods: A total of 120 full-term laboring parturients requesting epidural labor analgesia were enrolled in the study from July 5, 2020 to September 22, 2021. The parturients were randomly assigned to receive 0, 0.1, 0.2, 0.3, 0.4 or 0.5 μg/mL dexmedetomidine combined with 0.075% ropivacaine epidurally. An effective dose was defined as numerical rating scale (NRS) pain score ≤ 3 at 30-minutes of epidural drug injection. The dose-response relationship of dexmedetomidine (with ropivacaine) for epidural labor analgesia was performed using probit regression. The median effective dose (ED50) and the 95% effective dose (ED95) values for epidural dexmedetomidine combined with 0.075% ropivacaine with 95% confidence intervals (CIs) were derived by interpolation.Results: The estimated values of ED50 and ED95 with 95% CIs for epidural dexmedetomidine (combined with 0.075% ropivacaine) were 0.085 (0.015 to 0.133) μg/mL and 0.357 (0.287 to 0.493) μg/mL, respectively. No differences were found among groups for sensory block level, number of parturients with Bromage score > 0, total dosage of analgesics, cesarean delivery rate, fetal birth weight, Apgar score at 1-minute, Apgar score at 5-minutes and adverse effects. Compared with other groups, group dexmedetomidine 0.5 μg/mL had a longer duration of the first stage of labor.Conclusion: The ED50 and ED95 values of dexmedetomidine for epidural labor analgesia was 0.085 and 0.357 μg/mL under the conditions of this study. Dexmedetomidine is a suitable adjuvant for epidural labor analgesia.Keywords: epidural, labor analgesia, dexmedetomidine, the dose-response relationship, ED50, ED95https://www.dovepress.com/determination-of-the-dose-response-relationship-of-epidural-dexmedetom-peer-reviewed-fulltext-article-DDDTepidurallabor analgesiadexmedetomidinethe dose-response relationshiped50ed95 |
| spellingShingle | Ni JX Feng JL Yao SJ Ni LF Song SB Song CZ Qian XW Mei Z Yu J Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia Drug Design, Development and Therapy epidural labor analgesia dexmedetomidine the dose-response relationship ed50 ed95 |
| title | Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia |
| title_full | Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia |
| title_fullStr | Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia |
| title_full_unstemmed | Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia |
| title_short | Determination of the Dose-Response Relationship of Epidural Dexmedetomidine Combined with Ropivacaine for Labor Analgesia |
| title_sort | determination of the dose response relationship of epidural dexmedetomidine combined with ropivacaine for labor analgesia |
| topic | epidural labor analgesia dexmedetomidine the dose-response relationship ed50 ed95 |
| url | https://www.dovepress.com/determination-of-the-dose-response-relationship-of-epidural-dexmedetom-peer-reviewed-fulltext-article-DDDT |
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