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Background: Large doses of propofol needed for induction and laryngeal mask (LM) insertion in children may be associated with hemodynamic sides effects. Co-induction with low doses of ketamine 0.5 mg/ kg has the advantage of reducing dose and therefore maintaining hemodynamic stability.
Aim: To examine the effect of co-induction on LM insertion, hemodynamics and recovery in children
A prospective, randomized, double-blind, controlled study was conducted including120 ASA physical status I ⁄ II unpremedicated children, aged 1-8 years. Inhalatory induction with sevoflurane at 7% to insert an intravenous canula was first used then decreased to 2%. Normal saline or ketamine (0.5 mg/kg) were administered in groups P (propofol), PK (propofol-ketamine) respectively, 1 min prior to the administration of the induction dose of propofol. Propofol 3mg/kg was used for induction in the 2 groups, LM inserted 60 s later and insertion conditions assessed. Heart rate and blood pressure were recorded immediately after propofol bolus, then after LM insertion, at the 3rd ,5th and 10th minutes later. Recovery was assessed using Steward's Score
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| P (propofol), | Placebo Comparator | normal saline is injected 01 min before induction with propofol 3 mg/kg. After 60 seconds, an experimented anesthesiologist evaluated the LM conditions insertion. |
|
| PK (propofol-ketamine) | Active Comparator | we inject 0.5 mg/kg of ketamine 01 min before induction with 03 mg/kg of propofol .Sixty seconds after, an experimented anesthesiologist evaluated the LM conditions insertion. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ketamine | Drug | use a low dose 0.5 mg/kg of ketamine in coinduction with propofol in children induction anesthesia |
|
| Measure | Description | Time Frame |
|---|---|---|
| laryngeal masque conditions insertion | When the jaw was relaxed, and deglutition and cough reflex and member movement were absent, the conditions were considered acceptable.the laryngeal masque was inserted | MINUTE 1 |
| Measure | Description | Time Frame |
|---|---|---|
| hemodynamic conditions | systolic blood pressure | HOURS 1 |
| heart rate | cardiac frequence | HOURS 1 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| ali majdoub, professor | Ministery of Health | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Mahdia University Hospital | Mahdia | 5100 | Tunisia |
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| ID | Term |
|---|---|
| D007649 | Ketamine |
| ID | Term |
|---|---|
| D003510 | Cyclohexanes |
| D003516 | Cycloparaffins |
| D006840 | Hydrocarbons, Alicyclic |
| D006844 | Hydrocarbons, Cyclic |
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After inhalatory induction with sevoflurane7%until abolition of the eye lash reflex, an intravenous canula was inserted in the dorsum of the hand. The sevoflurane concentration was then decreased to 2% in 100% O2.A nurse not involved in the study prepared two syringes with ketamine or normal saline, and administrated it according randomization , one minute before induction with propofol. The administration of propofol was realized on 60 seconds. An experimented anesthesiologist evaluated the LM conditions insertion. When the jaw was relaxed, and deglutition and cough reflex and member movement were absent, the conditions were considered acceptable. The LM was then inserted. For analgesia,we proceeded by a locoregional bloc adapted to the surgery. We recorded systolic and diastolic blood pressure, HR and SpO2 at the induction time at LM insertion and at the 3rd,5th and10th min.
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A nurse not involved in the study prepared two syringes with ketamine or normal saline, and administrated it according randomization (by computer generated random numbers) one minute before induction with propofol
|
| D006838 |
| Hydrocarbons |
| D009930 | Organic Chemicals |