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Clinical Trial Summary

To compare the effect of low dose methylprednisolone versus high dose on inflammatory mediators' level and cardioprotective effect after CPB in correction of congenital acyanotic heart disease.


Clinical Trial Description

This study is a prospective, randomized controlled trial, at Ain Shams University hospitals, Cardiovascular surgery hospital (cardiac surgery unit), Cairo, Egypt. All patients' legal guardians will sign written informed consent before inclusion. Randomization will be performed using a computer-generated randomization sequence. Complete blood count, coagulation tests will be performed for all patients prior to the planned procedure. For all patients included in this study preoperative evaluation including a complete airway evaluation (mouth opening, mallampatii grading, thyromental distance, and evaluation of dentition) will be performed. Standard fasting guidelines will be checked. (Barash PG et al., 2006). On patient's arrival to operating room, either inhalational induction by sevoflurane 4-6 % followed by an intravenous (IV) line insertion or IV induction by Ketamine 1-2 mg /kg and 0.01 mg / kg Atropine. Standard monitoring including electrocardiography (ECG), pulse oximetry (SpO2). Anesthesia technique: fentanyl 1-5 microgram/kg, will be given during mask preoxygenation with 100% oxygen, followed by non-depolarizing muscle relaxant (atracurium 0.5 mg /Kg) and then endotracheal intubation and capnography will be applied (Barash PG et al., 2006). Femoral artery cannulation by 20 G Leader catheter cannula for invasive blood pressure (BP)measurement, triple lumen central line will be inserted in internal jugular vein (BRAUN) by ultrasound guided technique. After achievement of anesthesia and full muscle relaxation and intubation of the airway, a blood sample ( 2 ml) will be taken to measure (IL6), Troponin I and blood glucose level. Skin incision will take place followed by median sternotomy. Heparin 300-500 IU/kg will be given before aortic cannulation to achieve ACT of 450-480 before starting CPB. Patients will then be divided into 3 groups: Group (A) (25 patients) patients will receive 10 mg/Kg methyl prednisolone after induction before separation to (CPB). (Schroeder et al.,2003). Group (B) (25 patients) patients will receive 30 mg/Kg methyl prednisolone after induction before separation to (CPB). (Keski-Nisula et al., 2013). Group (C) (control group)(25 patients) patients will receive placebo in form of normal saline. We will study the different doses of methylprednisolone as there is no standard dose confirmed in pediatric cardiac surgery. We will compare the low dose with high dose of this drug to decrease the different side effects of steroids, and we will detect the efficacy by measuring the inflammatory markers. In our institute the IL 6 is the only available marker to be measured. The attending doctor will not give the drug, as another doctor not attending the surgery will give it. Both the attending doctor and intensivist will be blinded to the drug given. After surgical correction of cardiac lesion and separation of cardiopulmonary bypass machine, support of the heart will be achieved and maintained by millirone 0.3-0.7 ug/Kg/min together with noradrenaline0.01-1 ug/Kg/min. Reversal of heparin by protamine sulphate 1:1 correction. Vital data, blood pressure and heart rate will be recorded every 10 minutes, the need or the dose of vasopressors needed will be recorded. After hemostasis and chest closure, patients will be transferred to ICU (Barash PG et al., 2006). After admission to ICU, stabilization of patient, another blood sample of (2 ml) to measure (IL6) , troponin and random blood sugar will be taken, and a third sample will be withdrawn after 24 hours. Vital data will be recorded every 30 minutes till extubation. Time of extubation will be recorded. Complications like neurological events, occurrence of new arrhythmia, wound infection, ICU stay and mortality in the first seven days postoperative will also be recorded. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05103397
Study type Interventional
Source Ain Shams University
Contact
Status Recruiting
Phase Phase 4
Start date October 16, 2021
Completion date January 30, 2022

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