Biomedical subjects
Publications and source records attributed to S K Rosemberg.
Microsurgical carbon dioxide (CO2) laser vasovasostomy was successfully achieved by fusion coagulation of protein under similar laboratory conditions as those seen in the operating room. Speed of performance, patent lumen, and lack of granuloma formation support the CO2 laser's ability to simplify this technique.
Herein is described a surgical approach for the extravesical transmural removal of impacted distal ureteral calculus. This technique allows easy access to the intramural ureter in those cases in which previous manipulation has failed, thus avoiding the need for a prolonged and tedious transvesical approach.
Four clinical cases are presented in which the carbon dioxide laser was used as an adjunct to control massive post-prostatectomy bleeding, minimize parenchymal damage in a patient with bilateral renal tumors and impaired renal function, and in bivalving the kidney in 2 patients with staghorn calculus in order to shorten operative time and reduce blood loss.
Herein is presented the first case of balanitis xerotica obliterans treated successfully by carbon dioxide-continuous wave (CW-CO2) laser vaporization. This method appears to be a safe addition to other well-known treatment modalities, offering minimal postoperative discomfort, preservation of anatomic landmarks and function, and excellent cosmetic results.
Some guidelines for the use of carbon dioxide laser treatment of urethral condylomata are presented. Carbon dioxide laser treatment was accomplished successfully in 22 patients with distal urethral and meatal condylomata. Of the patients 86.6 per cent responded to a single laser treatment and 13.4 per cent had evidence of persistence or new growth that required repeat therapy. Meatotomy was required in 4 patients for adequate exposure. This form of therapy appears to be safe for eradication of superficial mucosal lesions and can be used either as a first choice of treatment or as an adjunct in those patients not responding to other well known conventional treatment modalities.
Complete eradication of urethral condylomata was accomplished by rapid super-pulsed carbon dioxide laser in 4 patients. Minimal postoperative discomfort and lack of stricture formation indicate that this new modality is an advantageous, fast, and secure method of management of intraurethral condylomata, and substantiated by our previous experimental reports.
We report a case of giant condylomata acuminata of the vulva and distal urethra. Complete eradication and healing were accomplished after 12 weeks, without scarring and with complete preservation of anatomic structures. Minimal postoperative discomfort was present. Our technique for vaporization of these locally aggressive and bulky lesions is described.
A single case of erythroplasia of Queyrat successfully treated by rapid superpulsed carbon dioxide laser emission is presented. The results of this single case and previous studies are compared with thos obtained by different modalities used in the past.
Adult exteriorized rabbit bladders were treated with both continuous wave and rapid superpulsed laser energy. A carbon dioxide laser was utilized in these studies. Time and power density were varied, and the effect in both acute and delayed preparations was noted. An additional group of animals treated with the carcinogen dibutylnitrosamine was studied in a similar manner. The depth of tissue ablated was monitored by the operating microscope and varied from 1 to 2 mm., using the power-time grid we employed. Not only could the depth of destruction be controlled, but also re-epithelialization was apparent in one and one-half to three and one-half weeks after destruction. Differences between superpulsed and continuous wave carbon dioxide laser energy are compared.
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