תוצאת חיפוש

Brief Preoperative Radiotherapy reduces Local Recurrences and Improves Survival in Rectal Cancer

T. Peretz, Z. Weshler,* Y. Goldberg, A.L. Durst, H.R. Freund

Depts. of Surgery and Oncology, Hadassah University Hospitals, and Hebrew University-Hadassah Medical School, Ein Kerem and Mt. Scopus, Jerusalem

Locoregional recurrence of rectal cancer ranges between 20%-50% following apparently radical surgery. Radiation has the potential of reducing this high rate of recurrence and residual disease. A retrospective analysis of 78 patients with locally advanced, biopsy proven, adenocarcinoma of the rectum treated between 1980-1987 was conducted. 28 (36%) were treated by surgery alone (surgery); 29 (37%) by surgery and postoperative radiotherapy (post-op); and 21 (27%) by surgery and preoperative radiotherapy (pre-op). 41 were females and 37 males. The median age was 62 years (range 25-90).

All tumors were resectable. 42 patients (54%) underwent abdomino-perineal resection and 36 (46%) anterior resection patients [8 Dukes B₁ (10%); 37 B₂ (47%); 2 C₁ (3%); 31 C₂ (40%]. Local recurrences were verified by transanal or ultrasound guided needle biopsy.

The 5-year actuarial survival rates by the Kaplan-Meier method for 75 evaluated patients was 55%. Overall 5-year actuarial survival was significantly higher (p=0.001) in pre-op radiotherapy (95%) compared to surgery alone (45%), or surgery with postoperative radiotherapy (32%). The data were significant (p=0.006) for patients with stage B tumors, but not stage C. This trend of improved survival held also at 8-year follow-up (80% pre-op; 32% post-op; 27% surgery). The 5-year actuarial local control was significantly better (p=0.03) for the pre-op irradiated patients (22%), compared with surgery only (56%) and post-op radiotherapy (38%). Local control was better (p=0.02) for Dukes B tumors in the preoperative group, but not Dukes C tumors.

Actuarial 5-year survival of those without distant metastases was 87% for pre-op patients, 62% for surgery alone and 48% for post-op radiotherapy. As all patients were clinically classified as advanced rectal tumors, tumor downstaging by preoperative radiotherapy seems to be paramount for local control. Improved local control translates into a siginificant advantage in overall actuarial survival.

*DECEASED.

Comparison between Every-Day and Every-3-Days Fluoxetine in Young, Moderately Depressed Out-Patients

A. Shiber, H. Reuveni, A. Elhayany, I.Z. Ben-Zion

Psychiatric Dept., Psychiatric Division, Soroka Medical Center and Ben-Gurion University of the Negev, Beer Sheba; and Medical Division for Drug Utilization, Kupat Holim Klalit (Sick Fund)

Fluoxetine is now a well-known and often-used specific serotonin reuptake inhibitor (SSRI) and antidepressant. It has a very long active half- life, from 2-16 days. Our hypothesis was that sufficient therapeutic effectiveness would be achieved by prescribing the drug less frequently than once a day.

To establish whether there is a difference between fluoxetine given daily or every 3 days, we assigned 25 outpatients with mild to moderate, acute major depressions (DSM-IV) to receive fluoxetine (20 mg), either each day or every 3 days. The study was open-labelled, using for assessment the HAM-D, GHQ-28 side-effect checklist and clinical judgment questionnaires. Follow-up lasted 6 months.

Results indicated no differences in the clinical outcomes, except for slightly fewer side-effects in the study group. Although the open label design limits drawing definitive conclusions, our preliminary results provide more information, and support our hypothesis that low-dosage fluoxetine is beneficial. However, more comprehensive, double-blind studies are necessary to confirm our preliminary results.

Diagnosis of Hyperprolactinemia: Determination at Rest Rules Out Stress-Induction

Avraham Ishay, Rafael Luboshitzky

Endocrine Institute, HaEmek Medical Center, Afula and Rappaport Faculty of Medicine, The Technion, Haifa

We present 3 women who were referred for evaluation of stress-related mild-to-moderate hyperprolactinemia. This frequent finding may mistakenly be considered a clinical problem, and lead to inappropriate investigation and therapy. We emphasize the importance of serial blood sampling for prolactin determination. We collected blood samples repeatedly under resting conditions from an indwelling venous brachial catheter, every 30 minutes for a total of 6 samples. All 3 patients had normal prolactin levels 30-60 minutes after starting the test. Neither further investigation nor medical therapy were needed and these anxious patients were reassured that their hyperprolactinemia was factitious.