We studied 60 ASA I patients with Mallampati grade 1 airways to compare emergency intubating conditions with either alfentanil 20 micrograms kg-1, propofol 2.5 mg kg-1 and vecuronium 0.1 mg kg-1, or with thiopentone 5 mg kg-1 and suxamethonium 1 mg kg-1. Ease of laryngoscopy, vocal cord status and cough response were graded. The trachea of all patients was intubated; 83% of patients in the alfe...

Benzodiazepines, which may themselves have analgesic properties, display complex interactions with opioids. This study was designed to investigate the effects of midazolam on nociceptive neurotransmission in isolated neonatal rat spinal cord, and the interactions between midazolam and alfentanil. Slow ventral root potentials (sVRP) were recorded from a lumbar root of spinal cords isolated from ...

REFERENCE 1 Miller DR, WellwoodM, Teasdale SJ et al. Effects of anaesthetic induction on myocardial function and metabolism: a comparison of fentanyl, sufentanil and alfentanil. Can J Anaes 1988; 35: 219-33. on-line pressure-volume loop eapability to pin-point more precisely ventricular cad systole for future studies. Finally, although the negative effects on cardiac function were observed, to ...

PURPOSE To compare intubating conditions and postoperative myalgias in outpatients after intubation with propofol/alfentanil compared with propofol/alfentanil/succinylcholine with and without precurarisation with d-tubocurarine. METHODS 144 ASA I-II ambulatory patients for dental extraction under anesthesia were studied. Subjects received either 3 mg d-tubocurarine (Group II) or saline (Group...

background: early warning of potential damage to spinal cord during major spinal surgery is highly desirable to prevent post-operative neurological deficits. wake-up test is a simple, safe and reliable method of recognition of such a complication, and has been extensively used in many spinal surgical units. the present study is evaluating the remifentanil, propofol versus alfentanil, propofol a...

Maximizing patient safety and comfort while minimizing adverse sequelae are continuing anesthetic challenges. The purpose of this study was to examine three anesthetic techniques utilizing alfentanil with regard to time to awakening, time to orientation and incidence of nausea and vomiting. Surgical procedures were limited to knee arthroscopy, laparoscopy and dental extractions. Unpremedicated ...

BACKGROUND It was the aim of this study to elucidate the influence of opioids on coronary vascular tone using the model of isolated porcine coronary artery segments. METHODS We studied the effects of fentanyl (0.01, 0.1, 1.0 microg ml(-1)), alfentanil (0.1, 1.0, 10 microg ml(-1)), and sufentanil (0.01, 0.1, 1.0 microg ml(-1)) on the contractile response to three vasoconstrictors, acetylcholin...

Human central nervous system (CNS) sodium channels modified by batrachotoxin and incorporated inter voltage-clamped lipid bilayers, were exposed to various concentrations of the opioid alfentanil (0.2-8.0 mM). Alfentanil caused a concentration-dependent and membrane potential independent reduction of the single channel amplitude and the fractional channel open-time. The weighted computer fit of...