Hyponatremia and Myometrium Contractility. An Invitro Study
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Purpose
Hyponatremia during labour has been associated with prolonged labour, and increased incidence of instrumental delivery and emergency caesarean section. Sodium influx in myometral cells are involved in contractility,and and influence of hyponatraemia on contractility can be suspected.
| Condition |
|---|
|
Hyponatremia |
| Study Type: | Observational |
| Study Design: | Observational Model: Case-Only Time Perspective: Prospective |
| Official Title: | Will Reduction in Plasma Sodium Reduce Myometrium Contractility in Humans? An Invitro Study of Pregnant Myometrium at Term. |
- Contractility [ Time Frame: 24 hours ] [ Designated as safety issue: No ]Contractility will be measured, and data analyzed.
Biospecimen Retention: None Retained
Biopsies of pregant myometrium
| Estimated Enrollment: | 30 |
| Study Start Date: | October 2012 |
| Estimated Study Completion Date: | December 2013 |
| Estimated Primary Completion Date: | October 2013 (Final data collection date for primary outcome measure) |
Biopsies will be obtained from pregnant women undergoing planned caesarean section at term. The biopsies will divided into 3 strips that will be stored overnight in chilled NaCl 0.9%. The following morning each strip will be mounted isometrically with one end fixed to a holder and the other end to a force transducer. One strip will be maintained in a solution containing 140mmol/L Na,acting as control, whereas the other two strips will be placed in fluids with diminishing Na concentration, from 140 mmol/L, to 130 mmol/L and 120 mmol/L. Contractility will be measured with force transducers and a polygraph
Eligibility| Ages Eligible for Study: | 18 Years to 48 Years |
| Genders Eligible for Study: | Female |
| Accepts Healthy Volunteers: | No |
| Sampling Method: | Non-Probability Sample |
Healthy women with singleton pregancies requiring delivery planned caesarean section.
Inclusion Criteria:
- Singleton pregnancy at term
Exclusion Criteria:
- Preeclampsia
Contacts and Locations| Contact: Gunvor Ekman Ordeberg, PhD | +46851775366 | gunvor.ekman-ordeberg@ki.se |
| Contact: Lars Irestedt, PhD | 046851772341 | lars.irestedt@karolinska.se |
| Sweden | |
| Department of Women and Child´s Health, Karolinska University Hospital, Solna | Recruiting |
| Stockholm, Sweden, 17176 | |
| Contact: Vibeke Moen, MD +4648081200 vibekemoen@hotmail.com | |
| Principal Investigator: Gunvor Ekman-Ordeberg, PhD | |
| Principal Investigator: | Gunvor Ekman-Ordeberg, PhD | Department of Women and Child´s Healt, karolinska University Hospital, Solna, Stockholm, Sweden |
More Information
Publications:
| Responsible Party: | Vibeke Moen, research fellow, Karolinska Institutet |
| ClinicalTrials.gov Identifier: | NCT01708811 History of Changes |
| Other Study ID Numbers: | LOF-KS1 |
| Study First Received: | October 15, 2012 |
| Last Updated: | October 16, 2012 |
| Health Authority: | Sweden: The National Board of Health and Welfare |
Keywords provided by Karolinska University Hospital:
|
Contractility human myometrium hyponatraemia |
Additional relevant MeSH terms:
|
Hyponatremia Water-Electrolyte Imbalance Metabolic Diseases |
ClinicalTrials.gov processed this record on May 23, 2013