Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Habermann, W; Müller, W.
Tissue penetration of bipolar electrosurgical currents: Joule overheating beyond the surface layer.
Head Neck. 2013; 35(4):535-540
Doi: 10.1002/hed.22986
Web of Science
PubMed
FullText
FullText_MUG
- Leading authors Med Uni Graz
- Habermann Walter
- Müller Wolfram
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- Abstract:
- Background There is extensive evidence that electrosurgical current application increases hemorrhage when compared with cold dissection and hemostasis. The way that the hot technique is used may influence the outcome decisively. Methods Temperature-time functions were measured in distances of 3 to 12 mm underneath the surface at which bipolar electrosurgical current was applied. Measurements were made in human cadaver, excised pig tissues, and pig animal models. Results Bipolar current causes Joule heating in distances of several millimeters. A single maximum power pulse of 1 second increased the temperature in the muscle in 3 and 6 mm distance to 90 degrees and 65 degrees C, respectively; similar accumulated thermal effects were detected for a series of low- and medium-power pulses, too. Conclusion Joule heating is primarily responsible for unintended thermal damages. Severe damages can easily occur even in several millimeters distance from the forceps tips. Utmost caution is also advised at low power setting when current is applied repetitively. (c) 2012 Wiley Periodicals, Inc. Head Neck, 2013
- Find related publications in this database (using NLM MeSH Indexing)
- Animals -
- Cadaver -
- Electrosurgery - adverse effects Electrosurgery - methods
- Hot Temperature - therapeutic use
- Humans -
- Models, Animal -
- Palatine Tonsil - surgery
- Surgical Instruments -
- Swine -
- Tonsillectomy - adverse effects Tonsillectomy - methods
- Find related publications in this database (Keywords)
- postoperative hemorrhage
- bipolar current
- electrosurgery
- tonsillectomy
- Joule heating