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Ketamine in Bariatric Surgery

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2012 by University of Padova.
Recruitment status was:  Active, not recruiting
Information provided by (Responsible Party):
University of Padova Identifier:
First received: September 14, 2012
Last updated: November 7, 2012
Last verified: November 2012
Ketamine may improve recovery from bariatric surgery.

Condition Intervention Phase
Morbid Obesity Drug: ketamine Drug: fentanyl Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Effects of Ketamine on Recovery From Bariatric Surgery

Resource links provided by NLM:

Further study details as provided by University of Padova:

Primary Outcome Measures:
  • pain level [ Time Frame: postoperatively, up to 3 months ]
  • mood level [ Time Frame: postoperatively, up to 3 months ]

Secondary Outcome Measures:
  • total dosages of analgesic and muscle relaxant drugs [ Time Frame: postoperatively, up to 3 months ]
  • postanesthetic recovery [ Time Frame: postoperatively, up to 24 hours ]
  • satisfaction of the patient and of the surgeon [ Time Frame: day 1 ]
  • pulse oximetry saturation [ Time Frame: postoperatively, up to 24 hours ]
  • lung volumes [ Time Frame: postoperatively, up to 48 hours from end of surgery ]
  • antihemetic drug dosage [ Time Frame: postoperatively, up to 24 hours ]
  • vasoactive drugs [ Time Frame: intraoperatively and up to 24 hours from surgery end ]

Estimated Enrollment: 90
Study Start Date: June 2012
Estimated Study Completion Date: June 2014
Estimated Primary Completion Date: June 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: ketamine
patients will receive ketamine at induction
Drug: ketamine
Active Comparator: fentanyl
patients will receive fentanyl at induction
Drug: fentanyl


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • age > 18
  • obesity (Body Mass Index > 30)
  • ASA classificazion < 4
  • candidate to bariatric surgery

Exclusion Criteria:

  • known or presumed pregnancy
  • previous surgery on the airway, esophagus or stomach
  • uncontrolled psychiatric symptomatology
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01724983

Azienda Ospedaliera
Padova, PD, Italy, 35121
Sponsors and Collaborators
University of Padova
Principal Investigator: Ulderico Freo, MD Università di Padova
  More Information

Responsible Party: University of Padova Identifier: NCT01724983     History of Changes
Other Study ID Numbers: KET2271
Study First Received: September 14, 2012
Last Updated: November 7, 2012

Keywords provided by University of Padova:

Additional relevant MeSH terms:
Obesity, Morbid
Nutrition Disorders
Body Weight
Signs and Symptoms
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anesthetics, Dissociative
Anesthetics, Intravenous
Anesthetics, General
Central Nervous System Depressants
Excitatory Amino Acid Antagonists
Excitatory Amino Acid Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Analgesics, Opioid
Adjuvants, Anesthesia processed this record on July 21, 2017