Volume 166 Number 3

tiation with oral PGE2 after premature rupture of the membranes at term. Obstet Gynecol 1977;49:523. 19. MacLennan AH, Green RC. The effect of intravaginal prostaglandin in F20l on labour after spontaneous and artificial rupture of membranes. Aust NZJ Obstet Gynecol 1980;20:87. 20. Prins RP, Bohon RN, Mark C, Neilson DR, Watson P. Cervical ripening with intravaginal prostaglandin E2 gel. Obstet Gynecol 1983;61 :459. 21. Magos AL, Noble MCB, Wong Ten Yuen A, Rodeck CH. Controlled study comparing vaginal prostaglandin E2 pes-

PGE 2 for premature rupture of membranes at term

saries with intravenous oxytocin for the stimulation of labour after spontaneous rupture of the membranes. Br J Obstet Gynaecol 1983;90:726. 22. Ekman-Ordeberg G, Uldbjerg N, Ulmsten U. Comparison of intravenous oxytocin and vaginal prostaglandin E2 gel in women with unripe cervixes and premature rupture of the membranes. Obstet Gynecol 1985;66:307. 23. Wagner MV, Chin VP, Peters Cj, Drexler B, Newman LA. A comparison of early and delayed induction oflabor with spontaneous rupture of membranes at term. Obstet Gynecol 1989;74:93.

The cavitational ultrasonic surgical aspirator for cytoreduction in advanced ovarian cancer Peter G. Rose, MD Worcester, Massachusetts OBJECTIVE: The cavitational ultrasonic surgical aspirator is a newer surgical instrument that has been shown to be effective in tumor resection. The purpose of this study was to evaluate its usefulness for cytoreduction of advanced ovarian cancer. STUDY DESIGN: Over a 24-month period patients with advanced ovarian cancer (stage lIIe and IV or bulky recurrent disease) were studied to determine the frequency of use of the cavitational ultrasonic surgical aspirator and the sites of tumor resection. The blood loss and operative time for patients who underwent surgery with the cavitational ultrasonic surgical aspirator were compared by Student t test with those of patients who did not undergo surgery with the cavitational ultrasonic surgical aspirator. RESULTS: The cavitational ultrasonic surgical aspirator was utilized to effect optimal cytoreduction in 22 of 45 patients (48%). Of 52 sites of disease resected, 23 (44%) involved sites difficult to resect with standard operative techniques. These sites included the diaphragm, liver, spleen, and fixed retroperitoneal adenopathy. The cavitational ultrasonic surgical aspirator allowed resection from other sites, precluding procedures with potentially more morbidity. Of all 45 patients, 86% had cytoreduction to

The cavitational ultrasonic surgical aspirator for cytoreduction in advanced ovarian cancer.

The cavitational ultrasonic surgical aspirator is a newer surgical instrument that has been shown to be effective in tumor resection. The purpose of t...
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