Ralph‐Thomas Kiefer

Efficacy of Ketamine in Anesthetic Dosage for the Treatment of Refractory Complex Regional Pain Syndrome: An Open-Label Phase II Study

Ralph‐Thomas Kiefer, P. Rohr, Annette Ploppa et al. · Pain Medicine · 2008 · 173 citations · Full text

A Placebo-Controlled Randomized Crossover Trial of the N-Methyl-d-Aspartic Acid Receptor Antagonist, Memantine, in Patients with Chronic Phantom Limb Pain

Katja Wiech, Ralph‐Thomas Kiefer, Stephanie T pfner et al. · Anesthesia & Analgesia · 2004 · 118 citations

The Efficacy of Postoperative Incentive Spirometry Is Influenced by the Device-Specific Imposed Work of Breathing

J. Weindler, Ralph‐Thomas Kiefer · CHEST Journal · 2001 · 83 citations

Device-specific Imposed Work, Ventilation, Patient Safety +5

Complete Recovery From Intractable Complex Regional Pain Syndrome, CRPS‐Type I, Following Anesthetic Ketamine and Midazolam

Ralph‐Thomas Kiefer, P. Rohr, Annette Ploppa et al. · Pain Practice · 2007 · 52 citations

A Pilot Open-Label Study of the Efficacy of Subanesthetic Isomeric S(+)-Ketamine in Refractory CRPS Patients

Ralph‐Thomas Kiefer, P. Rohr, Annette Ploppa et al. · Pain Medicine · 2007 · 47 citations · Full text