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The purpose of this study is to investigate if prolonging the speed of injection during spinal anaesthesia can reduce the incidence of hypotension and/or medication requirements thereby making it safer for the mother and foetus.
We plan to investigate if by varying the speed of injection during spinal anaesthesia, will there be a difference in the incidence of hypotension. Hypotension is a common complication especially for pregnant women undergoing caesarean section. A high speed of injection can theoretically cause a higher spread of anaesthetic, which may increase the incidence of hypotension. We want to know if by prolonging the injection time, will this lead to a reduction in a rate of hypotension.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Slow Speed | Experimental | Slow group patients will receive spinal injection over 60 seconds. Vital signs monitored every minute after injection. Hypotension is treated with IV Phenylephrine or Ephedrine. |
|
| Fast Speed | Experimental | Fast group patients will receive spinal injection over 15 seconds. Vital signs monitored every minute after injection. Hypotension is treated with IV Phenylephrine or Ephedrine. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Slow Speed of spinal injection | Procedure | Speed of injection over 60 seconds |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of Hypotension | How many patients will experience a drop in systolic Blood Pressure of greater than 20% | First 10 minutes after injection |
| Measure | Description | Time Frame |
|---|---|---|
| Use of vasoconstrictors | First 10 minutes after injection | |
| Adequacy of block | To determine if the anaesthetic is adequate for the surgery (no pain or movement experienced around the surgical field) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Chun Fai Chiang, MBBS | Ministry of Health, Malaysia | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital Tengku Ampuan Rahimah | Klang | Selangor | 41200 | Malaysia |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 28494915 | Derived | Chiang CF, Hasan MS, Tham SW, Sundaraj S, Faris A, Ganason N. Injection speed of spinal anaesthesia for Caesarean delivery in Asian women and the incidence of hypotension: A randomised controlled trial. J Clin Anesth. 2017 Jun;39:82-86. doi: 10.1016/j.jclinane.2017.03.025. Epub 2017 Apr 1. |
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| Fast Speed of spinal injection |
| Procedure |
Speed of injection over 15 seconds |
|
| Time of surgery |