Kevin W. Klein

ORCID: 0000-0003-3664-8266
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About
Contact & Profiles
Research Areas
  • Anesthesia and Sedative Agents
  • Anesthesia and Pain Management
  • Nausea and vomiting management
  • Anesthesia and Neurotoxicity Research
  • Airway Management and Intubation Techniques
  • Cardiac, Anesthesia and Surgical Outcomes
  • Hemodynamic Monitoring and Therapy
  • Inflammatory mediators and NSAID effects
  • Respiratory Support and Mechanisms
  • Trigeminal Neuralgia and Treatments
  • Advanced Control Systems Design
  • Dental Anxiety and Anesthesia Techniques
  • Heart Rate Variability and Autonomic Control
  • Tracheal and airway disorders
  • Air Traffic Management and Optimization
  • Olfactory and Sensory Function Studies
  • Analytical Chemistry and Sensors
  • Cardiac Imaging and Diagnostics
  • Intensive Care Unit Cognitive Disorders
  • Migraine and Headache Studies
  • Neuropeptides and Animal Physiology
  • Cardiovascular Function and Risk Factors
  • Pain Mechanisms and Treatments
  • Cardiovascular Syncope and Autonomic Disorders
  • Ion channel regulation and function

The University of Texas Southwestern Medical Center
1995-2021

Oklahoma State University
2021

Vanderbilt University Medical Center
2020

Institut Mines-Télécom Business School
1980-2018

Pain Management Institute
1980-2018

University of Basel
2006

Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology
2006

The University of Texas at Arlington
2002-2005

Children's Hospital of Philadelphia
2002

Philadelphia University
2002

In Brief BACKGROUND: Sugammadex is a modified γ cyclodextrin compound, which encapsulates rocuronium to provide for rapid reversal of residual neuromuscular blockade. We tested the hypothesis that sugammadex would more moderately profound rocuronium-induced blockade than commonly used cholinesterase inhibitors, edrophonium and neostigmine. METHODS: Sixty patients undergoing elective surgery procedures with standardized desflurane–remifentanil–rocuronium anesthetic technique received either...

10.1213/01.ane.0000248224.42707.48 article EN Anesthesia & Analgesia 2007-02-15

In Brief BACKGROUND: Pregabalin is a gabapentinoid compound, which has been alleged to possess anxiolytic, analgesic, and anticonvulsant properties. We hypothesized that premedication with oral pregabalin would produce dose-related reductions in acute (state) anxiety increases sedation (sleepiness) before induction of general anesthesia. A secondary objective was determine if reduce postoperative pain. METHODS: One hundred eight ASA I–III outpatients undergoing elective surgery were randomly...

10.1213/ane.0b013e31818d40ce article EN Anesthesia & Analgesia 2009-04-01

Three different anesthetic techniques were compared in 146 healthy outpatients undergoing ambulatory surgery. In Groups I and II, anesthesia was induced with propofol (1.5-2.0 mg/kg, intravenously [iv]) maintained nitrous oxide (N2O) 60% oxygen either a infusion, 75-160 micrograms.kg-1.min-1 IV, or sevoflurane, 1%-2% end-tidal, respectively. Group III, 1%-4% end-tidal N2O oxygen. addition to at total gas flow of 3 L/min, all patients received fentanyl, 2-3 micrograms/kg vecuronium, 0.1 mg/kg...

10.1097/00000539-199510000-00028 article EN Anesthesia & Analgesia 1995-10-01

Non-opioid analgesics are often used to supplement opioids for the management of perioperative pain. In this randomized, double-blinded, placebo-controlled study, we examined effects acetaminophen and a cyclooxygenase type-2 inhibitor, celecoxib, when administered alone or in combination, before elective otolaryngologic surgery 112 healthy outpatients. Subjects were assigned 1 4 study groups: Group 1, placebo (vitamin C, 500 mg per os [PO]); 2, 2000 PO; 3, celecoxib 200 4, PO. All patients...

10.1097/00000539-200205000-00025 article EN Anesthesia & Analgesia 2002-05-01

There is no agreement as to appropriate fluid resuscitation in patients undergoing liposuction. This has assumed greater significance, surgeons have undertaken larger volume aspirations (> or = 4 liters) and the potential complications of hypovolemia overload materialized. prospective study 53 consecutive healthy liposuction using a superwet technique served develop general guidelines for safe perioperative management, especially regard large-volume aspirations. In this context, "aspirate"...

10.1097/00006534-199811000-00063 article EN Plastic & Reconstructive Surgery 1998-11-01

Autonomic reflex dysfunction in patients with diabetes is associated an increased incidence of hypotension after induction anesthesia. Whether this finding can be extrapolated to autonomic from other causes (e.g., advanced age, hypertension, altered ventricular function) has not been established.The authors investigated whether a more generalized patient group (26 consecutively consenting day-surgery older than 39 yr) was similarly the occurrence induction. Preoperative tests function...

10.1097/00000542-199402000-00013 article EN Anesthesiology 1994-02-01

Background The antiepileptic drug carbamazepine (CBZ) is a potent inducer of human metabolism, resulting in serious interactions with many commonly prescribed drugs. molecular mechanisms underlying this response are not well understood, however, and the spectrum CBZ-inducible genes liver has been thoroughly investigated. Methods availability ribonucleic acid from 2 epileptic patients treated CBZ 7 control subjects enabled us to study global induction drug-metabolizing enzymes, transporters,...

10.1016/j.clpt.2006.08.013 article EN Clinical Pharmacology & Therapeutics 2006-11-01

A randomized, double-blind, placebo-controlled study was designed to compare the relative efficacy of prophylactic ondansetron, 4 mg intravenously (IV), when administered before induction anesthesia or at end surgery an outpatient population high risk developing postoperative nausea and vomiting (PONV). Patients undergoing otolaryngologic were randomly assigned one three different treatment groups: Group I (placebo) received saline 5 mL prior again surgery; II ondansetron in III surgery. All...

10.1097/00000539-199702000-00016 article EN Anesthesia & Analgesia 1997-02-01

A randomized, double-blind, placebo-controlled study was designed to compare the relative efficacy of prophylactic ondansetron, 4 mg intravenously (IV), when administered before induction anesthesia or at end surgery an outpatient population high risk developing postoperative nausea and vomiting (PONV). Patients undergoing otolaryngologic were randomly assigned one three different treatment groups: Group I (placebo) received saline 5 mL prior again surgery; II ondansetron in III surgery. All...

10.1213/00000539-199702000-00016 article EN Anesthesia & Analgesia 1997-02-01

Recently, the Food and Drug Administration increased celecoxib dosage recommendation from 200 mg to 400 for acute pain management. No studies have directly compared analgesic efficacy of different doses prevention postoperative pain. In this prospective, double-blinded, placebo-controlled study, we oral when administered premedication outpatients undergoing minor ear-nose-throat surgery. A total 93 healthy were assigned 1 3 study groups: control (placebo; n = 30), (n or 33). The drug was...

10.1213/01.ane.0000062526.60681.7b article EN Anesthesia & Analgesia 2003-06-01

We designed this randomized, double-blinded, placebo-controlled study to compare the analgesic effect of cyclooxygenase-2 inhibitors rofecoxib and celecoxib with acetaminophen when administered before outpatient otolaryngologic surgery in 240 healthy subjects. Patients were assigned one four groups: Group 1, control (vitamin C 500 mg); 2, 2 g; 3, 200 mg; or 4, 50 mg. The first oral dose medication was 15–45 min surgery, a second same given on morning after surgery. Recovery times, side...

10.1213/01.ane.0000053255.93270.31 article EN Anesthesia & Analgesia 2003-04-01

The optimal dose and timing of 5-HT3 antagonist administration for prophylaxis against postoperative nausea vomiting (PONV) remains controversial. Although antagonists seem to be most effective when administered near the end surgery, there are no data on comparative efficacy or costs associated with dolasetron ondansetron at operation. In this double-blinded study, 200 outpatients undergoing otolaryngologic procedures a standardized general anesthetic received 4 (O4) 8 mg (O8) 12.5 (D12.5)...

10.1097/00000539-200006000-00017 article EN Anesthesia & Analgesia 2000-06-01

Background Nonsteroidal antiinflammatory drugs are commonly administered as part of a multimodal regimen for pain management in the ambulatory setting. This randomized, double-blinded, placebo-controlled study was designed to compare analgesic effect oral rofecoxib, cyclooxygenase-2 inhibitor, and acetaminophen when alone or combination prior outpatient otolaryngologic surgery. Methods A total 143 healthy outpatients undergoing elective surgery were assigned one four groups: group 1 =...

10.1097/00000542-200210000-00027 article EN Anesthesiology 2002-10-01

We evaluated the effect of transdermal scopolamine on incidence postoperative nausea and vertigo after outpatient ear surgery (exploratory tympanotomy, mastoidectomy, or endolymphatic sac oval round window surgery) in a double-blind, placebocontrolled study. A patch containing either (n = 19) placebo 20) was placed behind nonsurgical 2 h before surgery. Anesthesia induced with thiopental (4–6 mg/kg intravenously [IV]), sufentanil(0.5 μg/kg IV), vecuronium (0.1 IV) maintained isoflurane...

10.1213/00000539-199408000-00013 article EN Anesthesia & Analgesia 1994-08-01

In Brief Using a randomized, double-blind protocol design, we compared new lower-lipid emulsion of propofol (Ampofol®) containing 1%, soybean oil 5%, and egg lecithin 0.6% with the most commonly used formulation (Diprivan®) respect to onset action recovery profiles, as well intraoperative efficacy, when administered for induction maintenance general anesthesia part "balanced" anesthetic technique in 63 healthy outpatients. Anesthesia was induced sufentanil 0.1 μg/kg (or fentanyl 1 μg/kg) 2...

10.1213/01.ane.0000103184.36451.d7 article EN Anesthesia & Analgesia 2004-03-01

Propofol (Diprivan™; AstraZeneca, Wilmington, DE) is a commonly used drug for the induction of general anesthesia in ambulatory setting. With availability new bisulfite-containing generic formulation propofol, questions have arisen regarding its cost effectiveness and safety compared with Diprivan™. Two hundred healthy outpatients were randomly assigned, according to double-blinded protocol, receive either Diprivan™ or propofol 1.5 mg/kg IV as part standardized sequence. Maintenance...

10.1097/00000539-200010000-00019 article EN Anesthesia & Analgesia 2000-10-01

This study compared the Macintosh blade direct laryngoscope, Glidescope, C-Mac d-Blade, and McGrath MAC X-blade video laryngoscopes in 2 cadaveric models with severe cervical spinal instability. We hypothesized that Glidescope laryngoscope would allow for intubation least amount of spine movement. Our secondary endpoints were glottic visualization success.In total, fresh cadavers underwent maximal surgical destabilization from craniocervical junction to cervicothoracic by a neurosurgical...

10.1097/ana.0000000000000560 article EN Journal of Neurosurgical Anesthesiology 2018-10-24

Abstract Background Multimodal perioperative analgesia including acetaminophen is recommended by current guidelines. The comparative efficacy of intravenous vs oral in sinus surgery unknown. We aimed to determine whether or results superior postoperative following surgery. Methods This was a prospective randomized trial with blinded endpoint assessments conducted at single large academic medical center. Subjects undergoing functional endoscopic were addition standard anesthetic and surgical...

10.1002/lio2.375 article EN cc-by-nc-nd Laryngoscope Investigative Otolaryngology 2020-04-16

A new self-tuning regulator for control of mean arterial blood pressure using sodium nitroprusside is presented. In addition to adapting various patient response gains and time constants, the controller can accommodate variations in pure delays, a problem that has not been addressed fully previously proposed controllers. The algorithm derivation based on incorporating self-turning with an adaptive discrete delay compensator. derivation, however, general potentially be applied other...

10.1109/10.335846 article EN IEEE Transactions on Biomedical Engineering 1994-01-01

To determine the optimal dose of nicardipine (N) for maintenance hemodynamic stability during postinduction period, we designed a randomized, double-blind, placebo-controlled, dose-ranging study using four different doses N administered after standardized anesthetic induction sequence. A total 106 patients were assigned to one following treatment groups: saline (control), 0.5 mg (N0.5), 1 (N1), 2 (N2), and 4 (N4). The medication was intravenously (I.V.) in 2.5 mL over 30 s min before...

10.1097/00000539-199712000-00012 article EN Anesthesia & Analgesia 1997-12-01

To determine the optimal dose of nicardipine (N) for maintenance hemodynamic stability during postinduction period, we designed a randomized, double-blind, placebo-controlled, dose-ranging study using four different doses N administered after standardized anesthetic induction sequence. A total 106 patients were assigned to one following treatment groups: saline (control), N0.5 mg (N0.5), N1 (N1), N2 (N2), and N4 (N4). The medication was intravenously (IV) in 2.5 mL over 30 s 2 min before...

10.1213/00000539-199712000-00012 article EN Anesthesia & Analgesia 1997-12-01

Background The cuffed oropharyngeal airway is a modified Guedel-type oral with cuff at its distal end. objectives of this study were to compare the ability and laryngeal mask provide positive-pressure ventilation during general anesthesia, assess their relative ease use reduce total fresh gas flow rates. Methods In prospective, randomized study, (n = 25) or device was inserted after induction anesthesia intravenously using 2 mg/kg propofol. While maintained sevoflurane nitrous oxide, leak...

10.1097/00000542-199905000-00014 article EN Anesthesiology 1999-05-01
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