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Sevoflurane Versus Intravenous Anaesthetic Agents in Morbid Obese Patients

Information source: University of Patras
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Morbid Obesity

Intervention: Sevoflurane (Drug); Sevoflurane (Drug); Propofol- Remifentanyl (Drug); Propofol, Remifentanyl (Drug)

Phase: Phase 2/Phase 3

Status: Recruiting

Sponsored by: University of Patras

Official(s) and/or principal investigator(s):
Athina Siampalioth, MD, Principal Investigator, Affiliation: University of Patras, Departement of Anesthesiology and Critical Care Medicine
Kriton Filos, Professor, MD, PhD, Study Chair, Affiliation: University of Patras, Departement of Anesthesiology and Critical Care Medicine

Overall contact:
Kriton Filos, Professor,MD, PhD, Phone: 00302610999341, Email: kritonfilos@yahoo.gr

Summary

The objective of this prospective randomized clinical study was to compare anesthesia, in morbidly obese patents (BMI >50) who underwent BPD-RYGBP with either sevoflurane or propofol with remifentanyl.

Clinical Details

Official title: Propofol Versus Sevoflurane as Sole Anesthetic Agent in Gastric By-Pass Surgery for Morbid Obesity: A Prospective Randomized Clinical Trial

Study design: Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Primary outcome: Change from baseline of perioperative haemodynamic measurements (HR, MAP), recovery scores (Aldrete, White,Chung)

Secondary outcome: Drug Consumption, Drug Cost.

Detailed description: This is a prospective double blind randomized controlled trial. The patients will be assigned to one of 4 groups (gr): (1) SEVO group, guided by a target end tidal concentration

1 - 2 MAC and modified according to the haemodynamics (BP, HR) of the patients using a bolus

inhalation (4 MAC), (2) SEVO-BIS group, using SEVO to a target BIS of 40 - 50, (3)

PROPO-REMI and (4) PROPO-REMI-BIS groups accordingly. In groups 1 and 2, anaesthesia will be induced with IV PROPO (2 mg/kg TW [TW = ideal body weight, IBW + 0. 4 * difference to the excess weight]), REMI (1 μg/kg IBW) and succinylcholine (1mg/kg IBW). In groups 3, 4 anaesthesia will be induced with a continuous IV PROPO infusion (21mg/kg TW/h for 5 min, 12 mg/kg TW/h for 10 min and then 6 mg/kg TW/h), followed by an IV bolus of REMI and succinylcholine as above. Every rise of BP or HR > 15% of baseline will be followed by a bolus SEVO inhalation in grs 1 and 2 or REMI bolus IV (1 μg/kg IBW) and increase in the continuous infusion rate of REMI from 0. 1 to 1. 0 μg/kg/min in groups 3 and 4. An epidural catheter will be placed prior to induction for postoperative analgesia only. Intraoperative BP and HR, anaesthetic consumption, recovery scores (Aldrete, Chung, White) and anaesthesia cost will be evaluated.

Eligibility

Minimum age: 18 Years. Maximum age: 50 Years. Gender(s): Both.

Criteria:

Inclusion Criteria:

- Age 18-50 yrs

- BMI>50 kg/m2

- Written consent for the participation in the study

Exclusion Criteria:

- History of significant cardiac disease, (aortic stenosis, angina, CHF or previous

cardiac or intrathoracic operations)

- Significant renal dysfunction (serum creatinine>1. 8 mg/dl)

- Significant liver dysfunction (evidenced by abnormal LFTs)

- History of hyper or hypothyroidism

- History of psychiatric or neurologic disorders

- Recall during general anesthesia

- Substance abuse (alcohol or other drugs)

- Counter-indications of placement of thoracic epidural catheter( previous spine

surgery or coagulation abnormalities )

- Refusal to participate in the study

Locations and Contacts

Kriton Filos, Professor,MD, PhD, Phone: 00302610999341, Email: kritonfilos@yahoo.gr

University Hospital of Patras, Departement of Anesthesiology and Critical Care Medicine, Patras, Achaia 26500, Greece; Recruiting
Kriton Filos, Professor, Phone: 00302610999341, Email: kritonfilos@yahoo.gr
Additional Information

Starting date: April 2010
Last updated: January 19, 2011

Page last updated: August 23, 2015

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