Ulf Linstedt

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PURPOSE To evaluate the short-term effectiveness and biocompatibility of Dacron-covered stent-grafts for percutaneous treatment of carotid aneurysms. MATERIALS AND METHODS In eight swine, nine aneurysms were created surgically in the common carotid artery. Percutaneous treatment was performed with Dacron-covered stent-grafts. Seven of eight swine(More)
Fragestellung. Wie beeinflusst eine intraoperative Hyperventilation bei älteren Patienten postoperative kognitive Funktionen? Methodik. Eingeschlossen wurden 120 allgemeinchirurgische Patienten (n=60, Alter <65 Jahre und n=60, Alter ≥65 Jahre). Randomisiert wurden in jeder Altersgruppe 30 Patienten hyperventiliert (HV, endexspiratorischer pCO2: 30 mmHg)(More)
BACKGROUND S-100 protein serum concentration (S-100) serves as a marker of cerebral ischemia in cardiac surgery, head injury and stroke. In these circumstances S-100 corresponds well with the results of neuropsychological tests. The aim of the present study was to investigate the value of S-100 and neuron specific enolase (NSE) in reflecting postoperative(More)
OBJECTIVE The aim of this study was to determine whether elastography, a sonographically based real-time strain imaging method for registering the elastic properties of tissue, can be used in brain tumor surgery. METHODS A modification of classic elastography called vibrography was applied in these measurements with static compression replaced by(More)
BACKGROUND We use an intubating laryngeal mask (ILM) in preference to an endotracheal tube (ETT) as the ventilatory device during percutaneous dilatational tracheostomy (PDT) to overcome potential problems such as difficult ventilation, accidental extubation, damage of the ETT or of the bronchoscope, and need for additional assistant to secure the airway.(More)
BACKGROUND In a retrospective analysis of intraoperative somatosensory evoked potential (SEP) results during carotid artery surgery we found some cases with postoperative neurologic deficits, surprisingly without significant SEP changes. METHODS Median nerve SEP were monitored as usual. Indication for selective shunting was a complete loss of amplitude(More)
PURPOSE Some severe complications during percutaneous dilatational tracheostomy (PDT) may be related to poor visualization of tracheal structures. Subjectively, the bronchoscopical view obtained via a laryngeal mask airway (LMA) seems to be better than that obtained with an endotracheal tube (ETT). In this prospective, randomized study, we compared LMA and(More)
RATIONALE AND OBJECTIVES The authors investigate the cerebral effects of selective carotid angiography with carbon dioxide (CO2). METHODS In 6 pigs, CO2 was injected into the carotid artery with consecutively increasing doses. Cerebral function was monitored with two-channel electroencephalography and somatosensory evoked potentials (SEPs). After the(More)
PURPOSE To determine the magnitude of the potentiation of rocuronium by desflurane, isoflurane and sevoflurane 1.5 MAC anaesthesia. METHODS In a prospective, randomised, study in 80 patients, the cumulative dose-effect curves for rocuronium were determined during anaesthesia with desflurane, sevoflurane and isoflurane (with N2O 70%, 15 min steady state)(More)