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St depression at ca...
St depression at caesarean section and the relation to oxytocin dose : a randomised controlled trial
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- Jonsson, Maria (författare)
- Uppsala universitet,Institutionen för kvinnors och barns hälsa,Obstetrisk forskning/Axelsson
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- Hanson, Ulf (författare)
- Uppsala universitet,Institutionen för kvinnors och barns hälsa,Obstetrisk forskning/Axelsson
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- Lidell, C (författare)
- Uppsala universitet,Klinisk fysiologi
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- Nordén Lindeberg, Solveig (författare)
- Uppsala universitet,Institutionen för kvinnors och barns hälsa,Obstetrisk forskning/Axelsson
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(creator_code:org_t)
- 2009-09-14
- 2010
- Engelska.
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Ingår i: BJOG : an international journal of obstetrics and gynaecology. - : Wiley. - 1470-0328. ; 117:1, s. 76-83
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Objective To investigate whether there is a difference in occurrence of electrocardiogram changes suggestive of myocardial ischaemia between two different doses of oxytocin. Design Double-blind randomised controlled trial Setting University hospital in Sweden. Population A total of 103 healthy women undergoing elective caesarean section under spinal anaesthesia. Methods The participants were randomised to 5 or 10 units of oxytocin, given as an intravenous bolus. A Holter monitor was used to record electrocardiograms and non invasive blood pressure and heart rate (HR) was monitored. A blood sample was obtained 12-hour postoperatively. Main outcome measures Depression of the ST segment. Secondary outcomes: symptoms, Troponon I levels, mean arterial pressure (MAP), HR and blood loss. Results There was a significant difference in occurrence of ST depressions associated with oxytocin administration, 4 (7.7%) with 5 and 11 (21.6%) with 10 units, P < 0.05. The absolute risk reduction was 13.9% (95% confidence interval, 0.5-27.3). Decrease of mean MAP from baseline to 2 minutes differed, being 9 mmHg in the 5 unit group and 17 mmHg in the 10 unit group (P < 0.01). The increase in mean HR did not differ. Troponin I levels were increased in four subjects (3.9%). There were no differences in occurrence of symptoms, Troponin I levels, or estimated blood loss. Conclusion ST depressions were associated with oxytocin administration significantly more often in subjects receiving 10 units compared with 5 units. Interventions to prevent hypotension during caesarean section may reduce the occurrence of ST depressions on electrocardiograms.
Nyckelord
- caesarean section
- regional anaesthesia
- oxytocin
- heart
- ischemia
- hypotension
- electrocardiography
- MEDICINE
- MEDICIN
- Obstetrik och gynekologi
- Obstetrics and Gynaecology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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