RecruitingACTRN12612000472875

Effect of sitting position on blood pressure reading among patients for caesarean section under spinal anesthesia

Maximum allowable sitting time following spinal anaesthesia for elective caesarean section and its effect on incidence of hypotension

Sponsor

King Abdulaziz University Hospital

Enrollment

90 participants

Start Date

Apr 14, 2012

Study Type

Interventional

Conditions

to define the maximum allowable time of sitting position after spinal anaesthesia for elective caesarean section and its effect on incidence of hypotension.

Summary

To assess the effect of sitting position following spinal anesthesia for elective caeserian section on hypotension, dermatomal level, and duration of spinal block. Four groups of patients will be studied. One will be allowed to set for 3 (control group), 5 min, second for 7 min, and the third for 9 min

Eligibility

Sex: FemalesMin Age: 18 YearssMax Age: 50 Yearss

Plain Language Summary

Simplified for easier understanding

This study is looking at the best sitting position to use after a spinal anesthetic for a planned cesarean section, to help reduce the risk of a sudden drop in blood pressure (hypotension). After the spinal injection, patients will sit upright for different lengths of time (3, 5, 7, or 9 minutes) before lying down, and researchers will measure how this affects blood pressure and the level of numbness from the anesthetic. You may be eligible if: - You are a woman between 18 and 50 years old - You are having a planned (elective) cesarean section - You are classified as ASA class I or II (generally healthy or with mild illness) - You have provided informed consent You may NOT be eligible if: - You have obesity, pre-existing high blood pressure, or pregnancy-induced hypertension - You have heart or blood vessel disease - You have an abnormal fetal heart rate tracing - You have any condition that prevents spinal anesthesia Talk to your doctor about whether this trial might be right for you.

This is a simplified summary. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

After approval of ethics committee of King Abdul Aziz university hospital, informed, written consent will be obtained from 90 ASA class I or II patients undergoing elective caesarean section. IV cann

After approval of ethics committee of King Abdul Aziz university hospital, informed, written consent will be obtained from 90 ASA class I or II patients undergoing elective caesarean section. IV cannula will be established. 500 mL of 6% hydroxyethyl starch 130/0.4 (voluven) will be administered over 20 min. combined epidural- spinal anesthesia will be performed. 10 mg of heavy bupivacaine 0.5% mixed with 20 micro g fentanyl will be injected into the subarachnoid space without any injection via epidural catheter. following that patients were randomly assigned into one of three equal groups of thirty patients each by using sealed envelope method. The randomization was dependent on the time allowed for each patient to be maintained on sitting position after intrathecal injection. In the four groups (group A, B, C and D) the patients were maintained in sitting position for 3, 5, 7 and 9 minutes consequatively before turning them into supine position. 3 min time was considered as a control group.

Locations(1)

Saudi Arabia

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ACTRN12612000472875