Multifractionated high-dose-rate brachytherapy with concomitant daily teletherapy for cervical cancer.
BACKGROUND
High-dose-rate (HDR) brachytherapy has been the preferred treatment for cervical cancer at Wayne State University since 1987. The outcome of the first 105 patients treated is analyzed.


OBJECTIVE
To determine clinical efficacy of the HDR modality.


METHODS
We reviewed 105 patients and evaluated the 88 patients treated for cervical carcinoma with HDR and external beam radiotherapy (EBRT) from August 1987 to December 1992. Patients received initial external radiation to the pelvis (total dose of 19.8 to 39.6 Gy in 11 to 22 fractions), followed by outpatient HDR brachytherapy (3 fractions/week, 386 cGy/fraction to Point A, total of 8 to 12 fractions) and concurrent daily EBRT (1.8 to 2.0 Gy) to lateral parametria. During the HDR period of treatment, step wedge transmission blocks were used to shield central pelvic tissue while treating peripheral pelvic tissues with EBRT. Patient distributions were as follows: 25, IB/IIA; 35, IIB/IIIA; and 28, IIIB/IVA. There were 56 African American and 32 Caucasian patients with mean age of 55 (range 19-89). The median follow-up was 33 months (range 20 to 76 months). Kaplan-Meier analysis was performed.


RESULTS
Three-year survival rates were 88%, IB/IIA; 69%, IIB/IIIA; 56%, IIIB/IVA; and 72% overall. Local control was achieved in 71/88 (80%) of patients. Failure site was cervix or within the pelvis in 12 patients, distant metastasis only 17 patients, and combined local and distant in 5 patients. Of the failures, 82% (28/34) died within 2 years. There were 3 grade III/complications (3.4%).


CONCLUSIONS
Results compare favorably with previous LDR experience.
Han
I
I
Department of Radiation Oncology, Wayne State University, Detroit, Michigan 48202, USA.
Malviya
V
V
Chuba
P
P
Orton
C
C
Devi
S
S
Deppe
G
G
Malone
J
J
Christensen
C
C
Ahmad
K
K
Kim
Y
Y
Porter
A
A
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001918:Brachytherapy; D002277:Carcinoma / Q000473:pathology / Q000532:radiotherapy*; D004307:Dose-Response Relationship, Radiation; D005260:Female; D006801:Humans; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D011832:Radiation Injuries; D011867:Radioisotope Teletherapy; D016019:Survival Analysis; D016896:Treatment Outcome; D002583:Uterine Cervical Neoplasms / Q000473:pathology / Q000532:radiotherapy*