Intrathecal Dexmedetomidine Versus Fentanyl With Bupivacaine in Children Undergoing Major Abdominal Cancer Surgery

NCT ID: NCT02861716

Last Updated: 2018-04-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-08-31

Study Completion Date

2019-12-31

Brief Summary

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In this study the investigators aim to determine the analgesic effect and side effects of intrathecal fentanyl and dexmedetomidine as adjuvant to local anesthetics in pediatric patients undergoing major abdominal cancer surgeries.

Detailed Description

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After obtaining approval of the local ethics committee of South Egypt Cancer Institute, Assiut University, Assiut, Egypt, and parent's written informed consent, a randomized double -blinded prospective study will be conducted on (60) pediatric patients.

After applying standard monitors; Pulse oximetry (Spo2), Noninvasive arterial blood pressure, Electrocardiography (ECG), pre-medication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam (0.01 mg/kg), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask and neuromuscular blockade (atracurium besylate 0.5mg/kg) will be used to facilitate endotracheal intubation. After that an intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, patients will be placed in lateral decubitus position and intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany).

Children will be randomly allocated into 3 groups by using opaque sealed envelopes containing a computer generated randomization schedule. The opaque sealed envelopes are sequentially numbered that will be opened before application of anesthetic plan and each group will include (20) patients:

Group (1): children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg in 2ml volume; it will be injected slowly.

Group (2): children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg plus fentanyl 0.2 μg/kg in 2ml volume; it will be injected slowly.

Group (3): children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg plus dexmedetomidine 0.2 μg/kg in 2ml volume; it will be injected slowly.

Anesthesia will be maintained with oxygen, sevoflurane, atracurium besylate (0.15mg/kg) as muscle relaxant and controlled mechanical ventilation. The inhaled concentration of sevoflurane will be adjusted to achieve hemodynamic changes\< 30% of the baseline values. No other narcotics, analgesics or sedatives will be administrated intra-operatively.

During surgery, children will receive lactated ringer's solution 6ml/kg/hr, whereas dextrose 50mg/ml in Nacl 4.5mg/ml will be infused at 4ml/kg/hr in the postoperative period.

Heart rate (HR), noninvasive arterial blood pressure (systolic, and diastolic), oxygen saturation (Spo2) will be recorded at baseline (pre-operatively) and every 10 minutes intra-operative till the end of the operation. The occurrence of intra-operative hypo-tension requiring a fluid bolus, and bradycardia requiring atropine will be recorded.

At the end of the surgery, the residual neuromuscular blocking will be reversed using a mixture of atropine (0.02mg/kg) and neostigmine (0.05mg/kg).

Then after extubation, patients will be transmitted to the post anesthesia care unit (PA CU), and will be followed up by:

* Vital signs (heart rate, noninvasive arterial blood pressure, oxygen saturation and respiratory rate) immediately postoperative (0 hour) and at 2, 4, 6, 8, 12,18 and 24 hours of the postoperative period.
* The face, Legs, Activity, Crying, and Consolability (FLACC) pain score with its 0- 10 score range will be used to assess pain immediately postoperative and at 2, 4, 6, 12, 18, 24 hours postoperative.
* The time of first request for analgesia (Intravenous paracetamol 20mg/kg (perfalgan ®) which will be given when the FLA CC score ≥4 and total paracetamol consumption also will be recorded in the 24 hours postoperative.
* The level of sedation will be recorded using Ramsey sedation scale as the same time points of FLA CC score.
* Postoperative adverse effects such as nausea, vomiting, itching, hypo-tension, bradycardia, arrhythmia and respiratory depression (respiratory depression will be defined as decreased Spo2of less than 95% or respiratory rate less than 10 per minute) will be treated and recorded.

Conditions

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Intrathecal Dexmedetomidine Pediatric Cancer Surgery

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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fentanyl and dexmedetomidine

intrathecal bupivacaine (0.5%) 0.4mg/kg plus fentanyl and dexmedetomidine in 2ml volume will be injected slowly over 20 seconds.

Group Type EXPERIMENTAL

Bupivacaine

Intervention Type DRUG

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight in 2ml volume and it will be injected slowly over 20 seconds.

dexmedetomidine and placebo for fentanyl

intrathecal bupivacaine (0.5%) 0.4mg/kg plus dexmedetomidine 0.2 μg/kg in 2ml volume and placebo (for fentanyl 0.2 μg/kg) it will be injected slowly over 20 seconds.

Group Type ACTIVE_COMPARATOR

Bupivacaine

Intervention Type DRUG

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight in 2ml volume and it will be injected slowly over 20 seconds.

Dexmedetomidine

Intervention Type DRUG

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight plus dexmedetomidine 0.2 μg/kg in 2ml volume and it will be injected slowly over 20 seconds.

fentanyl and placebo for dexmedetomidine

intrathecal bupivacaine (0.5%) 0.4mg/kg plus fentanyl 0.2 μg/kg in 2ml volume and placebo (for dexmedetomidine 0.2 μg/kg) it will be injected slowly over 20 seconds.

Group Type ACTIVE_COMPARATOR

Bupivacaine

Intervention Type DRUG

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight in 2ml volume and it will be injected slowly over 20 seconds.

Fentanyl

Intervention Type DRUG

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight plus fentanyl 0.2 μg/kg in 2ml volume and it will be injected slowly over 20 seconds.

Interventions

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Bupivacaine

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight in 2ml volume and it will be injected slowly over 20 seconds.

Intervention Type DRUG

Fentanyl

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight plus fentanyl 0.2 μg/kg in 2ml volume and it will be injected slowly over 20 seconds.

Intervention Type DRUG

Dexmedetomidine

premedication with Ondansetron (Zofran®) 0.1 mg/kg and Diazepam ( 0.01 mg/kg ), then general anesthesia will be induced with inhalation of sevoflurane 8% in oxygen via face mask. After that intravenous cannula will be placed, and fluid therapy will be standardized during and after surgery.

After securing the tube in place, the patients will be placed in the lateral decubitus position and a single dose of intrathecal anesthesia will be performed using a 25 gauge needle (Brown ®, Germany) and free flow of CSF technique. Then children will receive intrathecal bupivacaine (0.5%) 0.4mg/kg body weight plus dexmedetomidine 0.2 μg/kg in 2ml volume and it will be injected slowly over 20 seconds.

Intervention Type DRUG

Other Intervention Names

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Eligibility Criteria

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Inclusion Criteria

* American Society of Anesthesiologists (ASA) physical status I and II
* Patients scheduled for major abdominal cancer surgeries, expected to last more than 90 minutes

Exclusion Criteria

* Sacral bone abnormalities
* Spina bifida
* Coagulopathy
* Mental delay or retardation
* Known allergy to the study drugs
* Local infection at the site of injection
Minimum Eligible Age

3 Years

Maximum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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South Egypt Cancer Institute

OTHER

Sponsor Role lead

Responsible Party

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Rania Mohammed Abd elemam

Director, Clinical Research

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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rania abdelemam, lecturer

Role: PRINCIPAL_INVESTIGATOR

South Egypt Cancer Institute

Locations

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South Egypt Cancer Institute

Asyut, , Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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khaled fares, professor

Role: CONTACT

002/01289757288

sahar Mohammed, professor

Role: CONTACT

002/01003611410

Facility Contacts

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khaled fares, professor

Role: primary

01289757288

sahar abdelbaky, professor

Role: backup

01003611410

Other Identifiers

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Prospective

Identifier Type: -

Identifier Source: org_study_id

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