Ketamine added to morphine or hydromorphone patient-controlled analgesia for acute postoperative pain in adults: a systematic review and meta-analysis of randomized trials

The analgesic efficiency of combined pregabalin and ketamine for total hip arthroplasty: a randomised, double-blind, controlled study

(2013) V. Martinez et al.   ANAESTHESIA

Ketamine for chronic pain: risks and benefits

(2013) Marieke Niesters et al.   BRITISH JOURNAL OF CLINICAL PHARMACOLOGY

Ketamine Decreases Postoperative Pain Scores in Patients Taking Opioids for Chronic Pain: Results of a Prospective, Randomized, Double-Blind Study

(2013) Antje M. Barreveld et al.   PAIN MEDICINE

The Effect of Perioperative Intravenous Lidocaine and Ketamine on Recovery After Abdominal Hysterectomy

(2012) Martin V. Grady et al.   ANESTHESIA AND ANALGESIA

GRADE guidelines: 13. Preparing Summary of Findings tables and evidence profiles—continuous outcomes

(2012) Gordon H. Guyatt et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

GRADE guidelines: 12. Preparing Summary of Findings tables—binary outcomes

(2012) Gordon H. Guyatt et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

A systematic review of intravenous ketamine for postoperative analgesia

(2011) Kevin Laskowski et al.   Canadian Journal of Anesthesia-Journal canadien d anesthesie

GRADE guidelines: 7. Rating the quality of evidence—inconsistency

(2011) Gordon H. Guyatt et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

GRADE guidelines: 8. Rating the quality of evidence—indirectness

(2011) Gordon H. Guyatt et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

GRADE guidelines: 5. Rating the quality of evidence—publication bias

(2011) Gordon H. Guyatt et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

GRADE guidelines: 1. Introduction—GRADE evidence profiles and summary of findings tables

(2011) Gordon Guyatt et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

Intra- and Postoperative Very Low Dose Intravenous Ketamine Infusion Does Not Increase Pain Relief after Major Spine Surgery in Patients with Preoperative Narcotic Analgesic Intake

(2011) Kathirvel Subramaniam et al.   PAIN MEDICINE

Pooling health-related quality of life outcomes in meta-analysis-a tutorial and review of methods for enhancing interpretability

(2011) Kristian Thorlund et al.   Research Synthesis Methods

Adding ketamine to morphine for intravenous patient-controlled analgesia for acute postoperative pain: a qualitative review of randomized trials

(2010) M. Carstensen et al.   BRITISH JOURNAL OF ANAESTHESIA

Low-Dose Ketamine via Intravenous Patient-Controlled Analgesia Device after Various Transthoracic Procedures Improves Analgesia and Patient and Family Satisfaction

(2010) Shoshana Chazan et al.   Pain Management Nursing

No morphine sparing effect of ketamine added to morphine for patient-controlled intravenous analgesia after uterine artery embolization

(2009) L. L. JENSEN et al.   ACTA ANAESTHESIOLOGICA SCANDINAVICA

Is the Combination of Morphine with Ketamine Better than Morphine Alone for Postoperative Intravenous Patient-Controlled Analgesia?

(2009) Gorazd Sveticic et al.   ANESTHESIA AND ANALGESIA

Postoperative Ketamine Administration Decreases Morphine Consumption in Major Abdominal Surgery: A Prospective, Randomized, Double-Blind, Controlled Study

(2009) Jérome Zakine et al.   ANESTHESIA AND ANALGESIA

Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement

(2009) David Moher et al.   JOURNAL OF CLINICAL EPIDEMIOLOGY

Morphine With Adjuvant Ketamine vs Higher Dose of Morphine Alone for Immediate Postthoracotomy Analgesia

(2008) Nachum Nesher et al.   CHEST

Subanaesthetic ketamine spares postoperative morphine and controls pain better than standard morphine does alone in orthopaedic-oncological patients

(2008) Yehuda Kollender et al.   EUROPEAN JOURNAL OF CANCER

Ketamine spares morphine consumption after transthoracic lung and heart surgery without adverse hemodynamic effects☆

(2008) N NESHER et al.   PHARMACOLOGICAL RESEARCH

GRADE: an emerging consensus on rating quality of evidence and strength of recommendations

(2008) Gordon H Guyatt et al.   BMJ-British Medical Journal

Effect of a low-dose ketamine regimen on pain, mood, cognitive function and memory after major gynaecological surgery

(2007) F. Aubrun et al.   EUROPEAN JOURNAL OF ANAESTHESIOLOGY