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  • Title: Preliminary report of the effect of high-dose adjuvant intensity modulated radiation therapy on the sural nerve graft for cavernosal nerve sacrifice after radical prostatectomy.
    Author: Teh BS, Bastasch MD, Mai WY, Kadmon D, Miles BJ, Butler EB.
    Journal: Am J Clin Oncol; 2007 Aug; 30(4):395-400. PubMed ID: 17762440.
    Abstract:
    PURPOSE: A sural nerve graft may replace a killed cavernosal nerve. The effect of intensity-modulated radiation therapy (IMRT) on function of the graft has not been reported. MATERIALS AND METHODS: Between 1998 and 2001, 8 patients (9 nerve grafts) were treated with postoperative IMRT (mean dose, 70 Gy). Two patients had neoadjuvant Lupron 30 mg 2 months prior to radiation. Potency was defined as ability to achieve spontaneous erection sufficient for vaginal penetration. Median follow-up was 31.6 months. RESULTS: Five patients (62.5%) who had erectile function after prostatectomy preserved spontaneous erectile function after radiation. Of these, 3 patients had both nerves resected (two receiving unilateral grafts and one receiving bilateral grafts) and 2 others had one graft and one nerve preserved. The impotent patients were impotent after surgery. CONCLUSION: High-dose postprostatectomy IMRT does not place sural nerve grafts at greater risk for failure. Larger numbers of patients are needed to confirm these encouraging, preliminary findings.
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