Henry Perschak

Learn More
BACKGROUND The authors compared the effects of patient-controlled interscalene analgesia (PCIA) with ropivacaine 0.2% and patient-controlled intravenous analgesia (PCIVA) with opioids on hemidiaphragmatic excursion and respiratory function after major shoulder surgery. METHODS Thirty-five patients scheduled for elective major shoulder surgery were(More)
The release of endogenous glutamate and aspartate from corticostriate neurons in the anaesthetized rat was investigated. Efflux of glutamate, aspartate and leucine in push-pull cannula perfusates of the striatum was measured in 1 min fractions collected before, during and after a 4 min stimulation period of ipsilateral frontal cortex. Efflux of the putative(More)
BACKGROUND The effects of the infraclavicular plexus block using the modified Raj approach on diaphragm and respiratory function have not been investigated. METHODS After obtaining approval of the local ethics committee and written informed consent, 20 patients, scheduled for surgery of the forearm, wrist, or hand were prospectively included.(More)
Concentrations of putative neuroactive substances glutamate, aspartate, gamma-aminobutyric acid, glycine, proline and ethanolamine were determined in ventricular cerebrospinal fluid collected in patients suffering from Parkinson's disease, pain syndromes or cerebellar tremor. Values are similar to those given in the literature for lumbar cerebrospinal(More)
Release of ethanolamine, serine, and choline in rat pontine nuclei on electrical stimulation of afferents from the cortex was investigated using in vivo push-pull cannula techniques. Ethanolamine was determined by using gas chromatographic techniques; serine was measured with a HPLC system; and choline was assayed with a luminescence method. Resting elution(More)
Two cases with concomitant pulmonary nocardiosis and Pneumocystis carinii pneumonia are described. The first patient developed pneumonia 3 months after heart transplantation while undergoing standard immunosuppressive therapy with cyclosporin, azathioprine and prednisone. The second patient was treated with chemotherapy and subsequent radiotherapy of the(More)
Blood pressure (BP) and heart rate (HR) were monitored over 24 h utilising an ambulatory blood pressure monitoring (ABPM) system in 33 subjects with spinal cord injury: 11 patients with complete tetraplegia, 13 patients with incomplete tetraplegia and nine patients with complete paraplegia. Measurements were analysed for overall levels of BP and HR,(More)
  • 1