Bipolar forceps of a high-power electrosurgical unit for precise removal of small benign skin lesions

Abstract Introduction: Postoperative pain presents a significant medical problem. It can create a considerable discomfort in the immediate postoperative period and thus increase patient’s morbidity. Multiple mechanisms are involved in its’ etiology, one of them being the method of tissue incision. The aim of this study is to compare the early postoperative pain following incision with two different methods, scalpel and electrosurgery in the facial regions. Material and methods: Eighty patients with both benign and malignant skin lesions in the facial regions undergoing surgery were enrolled in this study. Patients were randomized in two groups. In group A, comprising 40 patients, cold steel surgical scalpel №15 was used for the surgical procedure. Electrosurgical microneedle with 0.06mm tip radius and generator unit KLS Martin Electrosurgical Unit ME MB 2 set on cutting mode, power 12 W was used for performing the surgery in group B including the same number of patients. After the surgery patients were given analgesics on their demand. The total number of on demand analgesics requirements was calculated. The patients were also asked to note the oral analgesics they were taking after being released from the hospital. Results: Results of this study showed a statistically significant difference between the groups in the analgesics demand on the day of the operation (p=0.041). On the day of the operation 52.5% patients in the scalpel group and only 30% of the patents of the electrosurgery group received analgesics on demand. In all other analysed time points, the patients in the scalpel group received analgesics more often than the patients in the microneedle group, but with no statistically confirmed difference between the groups (p>0.05). Even more significant is the fact that patients treated with electrosurgery that needed analgesics, had significantly bigger excision area median 471 (rank 283-589) compared to the patients treated with the conventional method 289 (rank 177-432) (p=0.016). Conclusion: In accordance with previous studies our results suggested a significantly reduced postoperative pain in the electrosurgery group.

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Fine Structural Alterations in Thyroid Follicular Cells (FC) and Changes in Serum Thyroxine Produced by Feeding Polychlorinated Biphenyl (PCB) to Rats

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100079929 ◽

1977 ◽

Vol 35 ◽

pp. 498-499

Author(s):

W.T. Collins ◽

Charles C. Capen ◽

Louis Kasza

Keyword(s):

Feed Efficiency ◽

Polychlorinated Biphenyl ◽

Serum Proteins ◽

Skin Lesions ◽

Hepatic Necrosis ◽

Ultrastructural Changes ◽

Lymphoid Tissues ◽

Heat Transfer Fluids ◽

Thyroid Follicular Cells ◽

Peripheral Metabolism

The widespread contamination of the environment with PCB, a compound used extensively by industry in hydraulic and heat transfer fluids as well as plasticizers and solvents in adhesives and sealants, has resulted in detectable tissue levels in a large portion of the human population, domestic animals, and wildlife. Intoxication with PCB produces severe hepatic necrosis, degeneration of lymphoid tissues and kidney, skin lesions, decreased reproductive performance, reduced feed efficiency, and decreased weight gain. PCB also has been reported to reduce the binding of thyroid hormone to serum proteins and enhance the peripheral metabolism of thyroxine with increased excretion of thyroxine-glucuronide in the bile (Bastomsky, Endocrinology 95: 1150-1155, 1974).The objectives of this investigation were (1) to investigate the histopathologic, histochemical, and ultrastructural changes in thyroid FC produced by the acute (4 week) and chronic (12 week) administration of low (50 ppm) and high (500 ppm) doses of PCB to rats, (2) to correlate these alterations to changes in serum immunoreactive thyroxine concentration, and (3) to investigate the persistence of the effects of PCB on the thyroid gland.

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