Comparison of sitting and lateral position during spinal anesthesia on maternal Sensory block Level and hemodynamics effect in cesarean section

Comparison of sitting and lateral position during spinal anesthesia on maternal sensory block Level and hemodynamic effects in cesarean section.

106 patients are randomly assigned into 4 blocks in a randomized, clinical trial, and in one of two positions, sitting and right lateral are under spinal anesthesia.

patients undergoing cesarean section at Fatemiyeh Hospital of Hamadan randomly placed in one of the two sitting and right-sided positions under spinal anesthesia and return immediately in supine position, and the vital signs and the maximum sensory level and onset time of anesthesia are evaluated by an assessment who does not know the patients' classification during spinal anesthesia.

Inclusin Criteria: parturients aged 18 to 45 years old; Candidates for cesarean section under spinal anesthesia; ASA Physical Class 1 and 2. Exclusion Criteria: Heart disease; Hypertension; Eclampsia & pre-eclampsia; Diabetes; Those who are reluctant to continue to participate in the study; Patients who have failed spinal anesthesia and undergo general anesthesia; Spinal anesthesia Contraindications (High ICP, coagulation problems, shock, anemia)

After measuring the initial vital signs, the patients in group A are placed in a sitting position and patients in group B are placed in right lateral position and under spinal anesthesia by an anesthesiologist in L4-L3 space with a spinal quincke needle number 25. After aspiration of the cerebro spinal fluid, 10 mg of 0.5% bupivacaine and 0.5 ml of sufentanil are injected into the sub-arachnoid space, and the patient is placed immediately in the supine position and the vital signs will be registered.

Maximum sensory level; Onset time of anesthesia; Blood Pressure; Heart Rate; Nausea & Vomiting; Satisfaction; Atropine &Ephedrine dose

In this study , a randomized block design with four replications is used. we provide four paper sheets . We write two letters A and on two other sheets of letter B. We mix the papers together and put them in the drawer of the table.With each of the qualified patients, one of the papers is taken out randomly and will be assigned to one of the two sitting or lateral position groups, depending on whether the drawn sheet is either A or B. After the random drawn out of four sheets, all the papers will be returned to the drawer and again the above procedure will continue for the next four patients until it reaches the sample volume.

Patients in Group A are in the sitting position and patients in Group B are placed in the right lateral position and they are under spinal anesthesia by anesthesiologist .Then the patients are immediately placed in supine position and evaluate by assessing who does not know the patients' classification and status of patients during spinal anesthesia in the two groups that analyzes the outcomes.In this study, the evaluator and analyzer do not know the type of patient s position drug spinal anesthsia.