PMID- 7480771 OWN - NLM STAT- MEDLINE DCOM- 19951221 LR - 20061115 IS - 0033-8419 (Print) IS - 0033-8419 (Linking) VI - 197 IP - 3 DP - 1995 Dec TI - Decreased acute toxicity by using midline mucosa-sparing blocks during radiation therapy for carcinoma of the oral cavity, oropharynx, and nasopharynx. PG - 863-6 AB - PURPOSE: To determine whether midline mucosa-sparing blocks (MSBs) protecting the aerodigestive tract can statistically significantly reduce acute toxicity during radiation therapy for carcinoma of the head and neck, without compromising tumor control. MATERIALS AND METHODS: Radiation records and simulation films were reviewed in 125 patients with carcinoma of the oral cavity, oropharynx, or nasopharynx. Patients with and without MSBs were compared. Measures of acute toxicity during radiation therapy were weight loss (> or = 5%), hospitalization for nutritional support, and unplanned treatment interruptions (> or = 5 days). Actuarial local-regional tumor control was compared. RESULTS: Patients with MSBs had significantly less weight loss (26 of 50 vs 37 of 47 patients, P = .006), fewer hospitalizations for nutritional support (one of 61 vs seven of 64 patients, P = .04), and a trend toward fewer treatment interruptions (10 of 61 vs 19 of 64 patients, P = .07) than patients without MSBs. The 3-year actuarial tumor control rates in the neck were similar. CONCLUSION: Midline MSBs decrease acute toxicity during radiation therapy for carcinoma of the oral cavity, oropharynx, and nasopharynx without compromising tumor control. FAU - Perch, S J AU - Perch SJ AD - Department of Radiation Oncology, University of Pennsylvania School of Medicine, Philadelphia, USA. FAU - Machtay, M AU - Machtay M FAU - Markiewicz, D A AU - Markiewicz DA FAU - Kligerman, M M AU - Kligerman MM LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - Radiology JT - Radiology JID - 0401260 SB - IM MH - Actuarial Analysis MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma/*radiotherapy MH - Disease-Free Survival MH - Follow-Up Studies MH - Hospitalization MH - Humans MH - Middle Aged MH - Mouth Mucosa/*radiation effects MH - Mouth Neoplasms/*radiotherapy MH - Mucous Membrane/radiation effects MH - Nasopharyngeal Neoplasms/*radiotherapy MH - Nasopharynx/*radiation effects MH - Nutritional Support MH - Oropharyngeal Neoplasms/*radiotherapy MH - Oropharynx/*radiation effects MH - Patient Care Planning MH - Radiation Protection/*instrumentation MH - Radiotherapy/adverse effects MH - Radiotherapy Dosage MH - Retrospective Studies MH - Stomatitis/etiology MH - Treatment Outcome MH - Weight Loss EDAT- 1995/12/01 00:00 MHDA- 1995/12/01 00:01 CRDT- 1995/12/01 00:00 PHST- 1995/12/01 00:00 [pubmed] PHST- 1995/12/01 00:01 [medline] PHST- 1995/12/01 00:00 [entrez] AID - 10.1148/radiology.197.3.7480771 [doi] PST - ppublish SO - Radiology. 1995 Dec;197(3):863-6. doi: 10.1148/radiology.197.3.7480771.