Manuel Unger

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Fever of unknown origin (FUO) was originally characterised in 1961 by Petersdorf and Beeson as a disease condition of temperature exceeding 38.3 °C on at least three occasions over a period of at least three weeks, with no diagnosis made despite one week of inpatient investigation. However, since underlying diseases are often reported for classical FUO,(More)
  • M Unger
  • The Surgical clinics of North America
  • 1984
The combination of recent technological developments in earlier detection of lung cancer, together with the simultaneous introduction of new palliative therapeutic tools, including the Nd:YAG laser, offers new hope in the treatment of lung carcinomas. Endobronchial usage of the Nd:YAG laser has provided a new technique to treat otherwise untreatable,(More)
Since the first operational laser was produced in 1960, the types and applications of lasers in many fields of medicine have increased dramatically. Many surgical techniques, especially with the CO2, argon, and Nd:YAG lasers, are described and illustrated in the articles in this issue. Current studies involving dye lasers and hematoporphyrin derivative(More)
The critical importance of laser safety depends on a precise knowledge of the physics of each type of laser and on the tissue effects each type produces in the constantly changing environment during surgery. The considerations involved in using the most common lasers--safety guidelines, general protocol, and specific measures--are outlined.