#SONAR intraooperative pain during caesarean with regional anaesthesia NIHR portfolio study. Funded by @OAAinfo @psrc_cl Sponsor @UCL Contact @Jamesocarroll

Joined January 2019
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12 Jun 2025
The final data 6 week follow up data are coming in to the SONAR study database! Thank you to all our PIs, collaborators and patients. Here is a map of all the UK hospitals involved!
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Recruitment in Leeds to the Sonar-1 @ObsQor study is flying along! Looking forward to our second week and second site! @LeedsResearch
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24 Apr 2025
Amazing work by @Jamesocarroll and team - thanks so much to you, every local investigator and every patient who has helped with this important work - keep going team!
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24 Apr 2025
Welcome to our 131st UK site!!! Now more than 70% of obstetric units. Amazing work!!! Thank you to the research admin staff, anaesthetists, clinicians, midwives, nurses and of course patients for taking part in this study. @PSRC_CL @OAAinfo
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17 Apr 2025
As we approach the Easter Holiday weekend….. We are please to welcome our 115th centre to the SONAR study! We are grateful to all the patients, our collaborators and our funders @OAAinfo @PSRC_CL
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13 Apr 2025
Conducted by a number of our study team with collaboration around the world. A systematic review and meta-analysis of patient reported pain during caesarean delivery. Well worth taking a read….
How common is pain during cesarean under neuraxial? Our review, published in @_Anesthesiology showed it to be v common, overall 17% (95%CI: 13% – 22%. Spinal anesthesia had the lowest pooled incidence of 14% (95%CI: 10% – 20% Epidural top-up highest of 33% (95%CI: 17% - 54%
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12 Apr 2025
100 UK centres up and running our study! We are grateful to each and every one of those sites working hard to get local approvals, organising their team and starting data collection @OAATrainee @OAAinfo @PSRC_CL

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4 Apr 2025
Another 40 centres have been given the Greenlight this week around the UK! @PSRC_CL @OAAinfo

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1 Apr 2025
Wonderful to have your collaboration on this study!! 💪 Great work and Happy recruiting!!!!!! @CHFTNHS @CHFTResearch @OAAinfo @PSRC_CL
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31 Mar 2025
More than 60 sites have now started their hard work around the UK collecting data! Many thanks to all involved in this @OAAinfo and @PSRC_CL sponsored study!

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21 Mar 2025
More greenlights for centres to start their data collection next week. Keep them coming in! As ever, grateful for the support @OAA @PSRC_CL

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16 Mar 2025
It’s a greenlight tomorrow AM for our first centres!!! Good luck and happy recruiting! @OAAinfo @PSRC_CL @Jamesocarroll @noolslucas @rmoonesinghe
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Racial and ethnic disparities exist in obstetric anaesthesia. Patients categorised as Asian or Black had lower odds of receiving neuraxial analgesia when compared with those from White backgrounds. #anaesthesia #obstetrics #pain #regionalanaesthesia @robertcraig123 @prenataltherapy @AllisonLeeNYC @rmoonesinghe @carvalb @jamesocarroll buff.ly/5ezIZSS
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10 Mar 2025
Our second of 3 possible SIVs for participating sites is starting soon 1500 GMT!! See you soon!!!
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8 Mar 2025
We had our 1st site webinar this week with over 200 attendees from across the U.K. Two further possible webinars coming up! Excited to get started! Sites can choose any 7-day period from 17th March to 17th May
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24 Feb 2025
And we are go! Sites should have received their study packs We look forward to opening recruitment 17th March 2025 @OAAinfo @Jamesocarroll @rmoonesinghe @noolslucas @PSRC_CL
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27 Nov 2024
We are now happy to announce we are enrolled in the @NIHRresearch Associate PI scheme. For more info get in touch.
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12 Nov 2024
Another busy few days at SONAR HQ with more sites joining our collaboration. Get in touch if your centre isn't marked to join our study looking at pain during caesarean delivery under neuraxial anaesthesia.
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7 Nov 2024
Thank you! We agree and are really glad to have @ctn_anzca support!!
Such an important study!!

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Thanks to @ctn_anzca Pilot Grant @ANZCA we are looking forward to being involved in this important work @Tomundoc @nsheridan123 @AliciaTDennis @Alan__Yam
6 Nov 2024
We are proud to have a separate grant from @ANZCA and be partnering with colleagues in Australia to run the study there, with @eley_victoria at the helm!!!
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