			Home About us Contact

Radiation Failure (radiation + failure)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Supracricoid partial laryngectomies after radiation failure: A multi-institutional series

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 3 2008
Raul Pellini MD
Abstract Background. Radiation therapy (RT) is one of the gold standard treatments for early laryngeal cancer, and total laryngectomy is still the most applied surgical procedure after failure. Selected recurrences can be managed by supracricoid partial laryngectomies (SCPLs). Methods. A multi-institutional retrospective analysis was carried out in 78 consecutive patients treated by SCPLs for the recurrence of glottic-supraglottic cancer after RT. Cricohyoidoepiglottopexy was performed in 62, and cricohyoidopexy (CHP) in 16 cases. Results. Disease-free survival at 3 and 5 years were 95.5%. Early and late postoperative complications occurred in 27% and 17.9% of cases. Decannulation and satisfactory swallowing were achieved in 97.4% of cases. Conclusions. SCPLs represent effective surgical organ-preservation strategies in the treatment of selected recurrences after RT failure, resulting in a good local control as well as functional recovery with acceptable morbidity, despite a complication rate which is not negligible. © 2007 Wiley Periodicals, Inc. Head Neck, 2008 [source]

Conservation laryngeal surgery versus total laryngectomy for radiation failure in laryngeal cancer,

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 9 2006
F. Christopher Holsinger MD
Abstract Background. Total laryngectomy is the standard of care for surgical salvage of radiation failure in laryngeal cancer. However, the role of conservation laryngeal surgery in this setting remains unclear. The objective was to compare the efficacy of conservation versus total laryngectomy for salvage of radiation failure in patients who initially presented with T1 or T2 squamous cancer of the larynx. Methods. A 21-year retrospective analysis of patients who received surgery at a single comprehensive cancer center after definitive radiation therapy is reported. At recurrence, the patients were reevaluated and then underwent a total laryngectomy or, if possible, a conservation laryngeal procedure. The charts of 105 patients who failed radiation treatment for primary laryngeal cancer and who subsequently underwent surgical salvage were reviewed for this study. Eighty-nine were male (84.8%). The mean age was 60.3 years. The median follow-up time after surgery was 69.4 months. Most patients with recurrence after radiotherapy required total laryngectomy (69.5%; 73/105). Conservation laryngeal surgery was performed for 32 patients (31.5%). Concomitant neck dissections were performed on 45 patients (45.5%). Results. In 14 patients, local or regional recurrence developed after salvage surgery: 9 patients after total laryngectomy (12.3%; 9/73), and 5 patients (15.6%; 5/32) after conservation laryngeal surgery. This difference was not statistically significant, nor was there a difference in disease-free interval for the two procedures (p = .634, by log-rank test). Distant metastasis developed in 13 patients. Most developed in the setting of local and/or regional recurrence, but distant metastasis occurred as the only site of failure in 6 of the patients who had undergone total laryngectomy but in 1 of the conservation surgery patients treated for a supraglottic laryngeal cancer. The overall mortality for patients who underwent total laryngectomy was also higher: 73.74% (54/73) versus 59.4% (19/32) for patients who underwent a conservation approach (p = .011 by log-rank test). Conclusions. Although conservation laryngeal surgery was possible in a few patients with local failure after radiotherapy, conservation laryngeal surgery is an oncologically sound alternative to total laryngectomy for these patients. © 2006 Wiley Periodicals, Inc. Head Neck, 2006 [source]

Primary and salvage (hypo)pharyngectomy: Analysis and outcome

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 8 2006
FRACS, Jonathan R. Clark BSc(Med)
Abstract Background. Surgery for squamous cell carcinoma (SCC) arising or extending to the hypopharynx is generally reserved for advanced disease or salvage. The prognosis of patients requiring pharyngectomy is poor, and the perioperative morbidity is significant. The aim of the present study is to describe the disease-related and treatment-related outcomes of patients undergoing primary and salvage pharyngectomy for cancer of the hypopharynx and larynx over a 10-year period from a single institution. Methods. We retrospectively reviewed 138 partial and circumferential pharyngectomies performed at a tertiary referral center between 1992 and 2002. There were 31 females and 107 males. The median age was 62 years (range, 27,81 years), and mean follow-up was 3.6 years. Salvage pharyngectomy for radiation failure was performed in 72 patients (52%), and in 66 patients (48%) pharyngectomy was performed as the primary treatment. Results. The 5-year overall survival rate after salvage pharyngectomy was 31% and after primary pharyngectomy was 38%. The 5-year disease-specific survival (DSS) for salvage was 40% and after primary surgery was 45%. The 5-year local and regional control rates for salvage pharyngectomy were 71% and 70%, respectively, and for primary pharyngectomy were 79% and 67%, respectively. The perioperative mortality rate was 3.6%, and the combined morbidity rate was 70%. Postoperative hypocalcemia developed in 44% of patients, a pharyngocutaneous fistula developed in 31% of patients, and the long-term stricture rate was 15%. Variables adversely affecting DSS on univariate analysis were nodal metastases (p = .044), extracapsular spread (ECS) (p = .006), poorly differentiated tumors (p = .015), lymphovascular invasion (p = .042), and positive tumor margins (p = .026). ECS (p = .023) was the only independent prognostic variable on multivariable analysis; however, there was a trend toward significance for nodal metastases (p = .064) and tumor differentiation (p = .079). Conclusion. This study demonstrates that both salvage pharyngectomy and primary surgery for advanced disease are viable options with high locoregional control. However, this represents a high-risk group in terms of both operative morbidity and survival. Patients with nodal metastases, ECS, and poorly differentiated tumors are likely to succumb to their disease and should be selected for adjuvant therapy when possible. © 2006 Wiley Periodicals, Inc. Head Neck 28: 671,677, 2006 [source]

Factors influencing long-term survival following salvage total laryngectomy after initial radiotherapy or conservative surgery,

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 2 2006
B. Zach Fowler MD
Abstract Background. This retrospective study investigated survival outcomes of salvage total laryngectomy (STL) after initial radiation therapy (RT) or larynx conservation surgery (CS) at an academic center. Methods. A chart review yielded 64 patients with STL: 53 with RT failures, six with CS failures, and five after RT + CS. Median potential follow-up after STL was 9.4 years (mean, 9.2 years; range, 0.3,17.4 years). Results. Five- and 10-year actuarial overall survival (OS) after STL was 65.2% and 37.7%, respectively. Mean survival after STL was 7.2 years (median, 6.8 years; range, 0.2,17.4 years). No significant survival difference was found between the three treatment groups (p = .50). For 21 patients with nodes assessed at STL, 9-year OS was 45.4% for patients with N0 disease versus 26.7% for patients with N+ disease (p = .25). Conclusion. These data suggest that STL after radiation failure is associated with equivalent long-term survival as STL after RT + CS or after failure of CS alone. © 2005 Wiley Periodicals, Inc. Head Neck27: XXX,XXX, 2005 [source]

Partial laryngectomy for recurrent glottic carcinoma after radiotherapy

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 2 2005
Aniel Sewnaik MD
Abstract Background. Early laryngeal cancer is treated with surgery or radiotherapy. A partial laryngectomy instead of a total laryngectomy can be used for treating patients with radiation failures. Methods. Patients were grouped by the two types of partial laryngectomies we performed: group I, endoscopic laser surgery (n = 42); and group II, frontolateral partial laryngectomy (n = 21). Results. With CO2 laser treatment, 14 of 24 patients (no involvement of the anterior commissure) and eight of 18 patients (involvement of the anterior commissure) were cured. With the frontolateral partial laryngectomy, we achieved local control in 15 of 21 patients. Conclusions. If the surgeon is familiar with the different techniques of, and indications for, partial laryngectomy, this can be a good and satisfying treatment in selected patients with radiation failure for glottic cancer. © 2004 Wiley Periodicals, Inc. Head Neck27: 101,107, 2004 [source]

Transoral carbon dioxide laser microsurgery for recurrent glottic carcinoma after radiotherapy

HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 6 2004
Wolfgang Steiner MD
Abstract Background. Transoral laser microsurgery is successfully performed in the treatment of primary laryngeal carcinomas. Few publications deal with the application in patients with recurrent glottic carcinomas after radiation failure. Our study aims to review our experience with transoral laser microsurgery in these patients. Methods. Thirty-four patients with early and advanced recurrent glottic carcinoma after full-course radiotherapy (rT1, n = 11; rT2, n = 10; rT3, n = 10; rT4, n = 3) had CO2 laser treatment with curative intent between 1987 and 1998. Results. Twenty-four patients (71%) were cured with one or more laser procedures. In nine patients, recurrences could not be controlled by laser microsurgery: six patients underwent total laryngectomy and three palliative treatment. One patient received total laryngectomy because of chondronecrosis after laser treatment. With a median follow-up interval of 38.6 months, the 3-year and 5-year disease-specific survival was 86%. The overall 3-year survival rate was 74%; the corresponding 5-year survival rate was 53%. No major complications occurred. In three cases, temporary tracheostomy was needed. Conclusions. In early-stage and advanced-stage recurrent glottic carcinomas after radiotherapy, CO2 laser treatment can successfully be used as a curative organ-preserving procedure. Compared with salvage laryngectomy, results are superior with respect to preservation of laryngeal function. Great expertise is required, especially in resections of advanced-stage recurrent carcinomas. © 2004 Wiley Periodicals, Inc. Head Neck26: 477,484, 2004 [source]

Telomerase Activity Is Upregulated in Laryngeal Squamous Cell Carcinoma,

THE LARYNGOSCOPE, Issue 3 2000
Aongus J. Curran MB, FRCSI
Objective/Hypothesis The immortalizing enzyme telomerase has been linked to carcinogenesis and is being targeted as a novel molecular marker. This study investigated telomerase expression in patients with laryngeal squamous cell carcinoma and correlated telomerase activity with conventional prognostic parameters. Study Design A consecutive series of patients with laryngeal squamous cell carcinoma undergoing surgical salvage for persistent or progressive disease after failed radiation therapy. Methods Twenty patient samples of laryngeal squamous cell carcinoma and 20 adjacent histologically normal mucosal samples were assayed using the telomeric repeat amplification protocol (TRAP) method for detection of telomerase activity. The leukemic cell line, K562, acted as a positive control and the human fibroblast line, Hs21Fs, as a negative control. A sample was classified as telomerase positive when an RNase-sensitive hexameric repeat ladder was observed. Absence of laddering was considered a negative result. Results Seventeen of 20 (85%) tumor samples and 4 of 20 (20%) adjacent histologically normal samples were telomerase positive. No statistically significant difference was observed when densitometric readings were compared by T category, tumor grade, or site (by ANOVA). Conclusions Although telomerase activity is present in laryngeal cancer, levels of activation do not correlate with conventional parameters used for prognostication. Our study indicates that the marker may be a useful adjunctive method in the diagnosis of malignancy after radiation failure. [source]