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the aim is to determine the value of adding bilateral supra zygomatic maxillary nerve block to general anesthesia in attenuating the systemic inflammatory response in paediatrics.
Cleft lip and palate are some of the most common craniofacial malformations, with an incidence ranging between 0.1 and 1.1 per 1000 births. Early surgical intervention for cleft palate (CP) repair is essential for proper feeding and phonation as well as reduction of complications such as frequent sinusitis and other respiratory tract infections.
Surgical injury stimulates the systemic inflammatory response. The neuroendocrine response leads to stimulation of the sympathetic nervous system resulting in tachycardia, hypertension and activation of the hypothalamic-pituitary adrenal axis. This induces the release of hormones such as adrenocorticotropic hormone (ACTH), catechol-amines (norepinephrine and epinephrine) and cortisol and increase in white cell count which is proposed to have a detrimental effect on the postoperative immunity. Furthermore, the production of pro-inflammatory cytokines including interleukins (IL) e.g.IL-1, IL-6, IL-8 and tumour necrosis factor alpha (TNF-α) by innate immune cells such as neutrophils and macrophages, interacting with damaged cells and platelets, leads to the production of acute phase proteins from the liver such as C-reactive protein (CRP), fibrinogen and complement proteins.
Regional blocks provide good pre-emptive analgesia when given in combination with general anaesthesia (GA). It is associated with hemodynamic stability, rapid recovery, reduction of supplemental analgesia consumption in addition to favourable effect on systematic inflammatory response. Using bilateral suprazygomatic approach of maxillary nerve block during CP repair is hypothesized to provide such mentioned settlement of a regional block.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Maxillary block group | Active Comparator | The ultrasound probe will be placed in the infra zygomatic area, with an inclination of 45 degrees in the transverse plane. A 27-gauge 38-mm needle will be used for the injection. The needle will be inserted perpendicular to the skin at the frontozygomatic angle and advanced to the greater wing of the sphenoid. The needle will be then redirected and advanced to the pterygopalatine fossa. Loss of resistance after passing through the temporalis muscle will assist in determining the puncture depth, and real-time ultrasound guidance will allow seeing the spread of local anesthetic in the pterygopalatine fossa. |
|
| Control group | No Intervention | Patients will receive only general anesthesia with regulated doses of IV opioids. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Bupivacaine 0.25% Injectable Solution | Drug | ultrasound-guided bilateral suprazygomatic maxillary nerve block using 0.15 ml/kg. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Interleukin 6 serum level. | Two blood samples will be withdrawn in both groups, the first sample immediately after induction of general anaesthesia, endotracheal tube insertion and the other sample will be withdrawn after completion of surgery and before recovery of the patient | 3-5 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Serum Cortisol level | Two blood samples will be withdrawn in the both groups, the first sample immediately after induction of general anaesthesia, endotracheal tube insertion and the other sample will be withdrawn after completion of surgery and before recovery of the patient | 3-5 hours |
| Plasma glucose level |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Sherif S Sultan, MD | Ainshams University | Study Director |
| Tamer N Ibrahim AbdelRahman, MD | Ainshams Univeristy | Study Chair |
| Sohib M Galal, MD | Ainshams Univeristy | Study Chair |
| Sarah A Salem, MD | Ainshams Univeristy | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of dentisry Ainshams univeristy | Cairo | Egypt |
Summary results
6 months after publication
Internet search by keywords
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D010146 | Pain |
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| ID | Term |
|---|---|
| D002045 | Bupivacaine |
| ID | Term |
|---|---|
| D000813 | Anilides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000814 | Aniline Compounds |
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Two blood samples will be withdrawn in the both groups, the first sample immediately after induction of general anaesthesia, endotracheal tube insertion and the other sample will be withdrawn after completion of surgery and before recovery of the patient |
| 3-5 hours |
| C-Reactive protein (CRP) | Two blood samples will be withdrawn in the both groups, the first sample immediately after induction of general anaesthesia, endotracheal tube insertion and the other sample will be withdrawn after completion of surgery and before recovery of the patient | 3-5 hours |
| Total leucocytic count | Two blood samples will be withdrawn in the both groups, the first sample immediately after induction of general anaesthesia, endotracheal tube insertion and the other sample will be withdrawn after completion of surgery and before recovery of the patient | 3-5 hours |
| CHIPPS score | Score 0 , Score 1 , Score 2 | 1 hour (h), 2 h, 4 h, 6 h, 8 h, 12 h postoperatively. |
| The number of rescue analgesia doses postoperatively | IM Diclofenac(0.5 mg/kg) will be given as rescue analgesia for patients if CHIPPS was > 3/10 | 12 hours postoperative |
| time needed till the need of first dose recorded of rescue analgesia | IM Diclofenac(0.5 mg/kg) will be given as rescue analgesia for patients if CHIPPS was > 3/10 | 12 hours post operative |
| Time needed to start oral feeding will be recorded | time of starting oral feeding | 12 hours postoperative |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D000588 |
| Amines |