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Lymph node ratio as a prognostic factor in head and neck cancer patients.

Chen CC, Lin JC, Chen KW - Radiat Oncol (2015)

Bottom Line: The median value of LNR for lymph nodes positive patients was 0.1.In univariate analysis, patients with an LNR value less than 0.1 had better 3-year OS (67.0% vs.41.0%, p = 0.004), 3-year LFFS (76.1% vs. 54.9%, p = 0.015) and 3-year DMFS (87.2% vs. 66.4%, p = 0.06).Multivariate analysis revealed that LNR was an independent prognostic factor for OS (hazard ratio [HR] = 2.92; 95% confidence interval [CI] = 1.367-6.242; p = 0.006) and LFFS (HR = 4.12; 95% CI = 1.604-10.59; p = 0.003).

View Article: PubMed Central - PubMed

Affiliation: Department of Radiation Oncology, Taichung Veterans General Hospital, No.1650, Sect. 4, Taiwan Boulevard, Taichung, 40705, Taiwan, Republic of China. chiencheh@gmail.com.

ABSTRACT

Background: Lymph node status is one prognostic factor in head and neck cancer. The purpose of this study is to investigate the prognostic value of lymph node ratio (LNR) in head and neck cancer patients who received surgery plus postoperative chemoradiotherapy.

Methods: From May 1991 to December 2012, a total of 117 head and neck cancer patients who received surgery plus postoperative chemoradiotherapy were analyzed. The primary sites were oral cavity (93), oropharynx (13), hypopharynx (6), and larynx (5). All patients had pathologically confirmed squamous cell carcinoma and 63 patients had neck lymph nodes metastasis. LNR was calculated for each patient. The endpoints were overall survival (OS), local failure-free survival (LFFS), and distant metastasis-free survival (DMFS).

Results: The median follow up time was 36 months, with a range from 3.4 to 222 months. The 3-year rates of OS, LFFS, and DMFS were 59.7, 70.3, and 81.8%, respectively. The median value of LNR for lymph nodes positive patients was 0.1. In univariate analysis, patients with an LNR value less than 0.1 had better 3-year OS (67.0% vs.41.0%, p = 0.004), 3-year LFFS (76.1% vs. 54.9%, p = 0.015) and 3-year DMFS (87.2% vs. 66.4%, p = 0.06). Multivariate analysis revealed that LNR was an independent prognostic factor for OS (hazard ratio [HR] = 2.92; 95% confidence interval [CI] = 1.367-6.242; p = 0.006) and LFFS (HR = 4.12; 95% CI = 1.604-10.59; p = 0.003).

Conclusion: LNR is an important prognosis factor for OS and LFFS in head and neck cancer patients.

No MeSH data available.


Related in: MedlinePlus

Local failure free survival according to lymph nodes ratio for 63 lymph node-positive patients
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Fig5: Local failure free survival according to lymph nodes ratio for 63 lymph node-positive patients

Mentions: The median follow-up time was 36 months, with a range from 3.4 to 222 months. For surviving patients, the follow up time was at least 2 years. The 3-year OS, LFFS, and DMFS for all patients were 59.7, 70.3, and 81.8 %, respectively. There were no treatment-related death in this study. Table 2 summarizes the results of univariate analysis. Patients with LNR <0.1 had longer 3-year OS (67.0 % vs.41.0 %, p = 0.004, Fig. 1). Patients with LNR <0.1 had higher 3-year LFFS (76.1 % vs. 54.9 %, p = 0.015, Fig. 2). Patients with LNR <0.1 tended to have better 3-year DMFS (87.2 % vs. 66.4 %, p = 0.06, Fig. 3). The subgroup analysis for lymph node-positive patients showed that higher LNR had poor 3-year OS (p = 0.003, Fig. 4) and LFFS (p = 0.011, Fig. 5). High LNR group had poorer DMFS than medium and low LNR group (Fig. 6), but it did not reached statistically significance (p = 0.18). The absolute number of lymph node metastases had no significant difference on OS (p = 0.28), LFFS (p = 0.46) and DMFS (p = 0.96).Table 2


Lymph node ratio as a prognostic factor in head and neck cancer patients.

Chen CC, Lin JC, Chen KW - Radiat Oncol (2015)

Local failure free survival according to lymph nodes ratio for 63 lymph node-positive patients
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4554293&req=5

Fig5: Local failure free survival according to lymph nodes ratio for 63 lymph node-positive patients
Mentions: The median follow-up time was 36 months, with a range from 3.4 to 222 months. For surviving patients, the follow up time was at least 2 years. The 3-year OS, LFFS, and DMFS for all patients were 59.7, 70.3, and 81.8 %, respectively. There were no treatment-related death in this study. Table 2 summarizes the results of univariate analysis. Patients with LNR <0.1 had longer 3-year OS (67.0 % vs.41.0 %, p = 0.004, Fig. 1). Patients with LNR <0.1 had higher 3-year LFFS (76.1 % vs. 54.9 %, p = 0.015, Fig. 2). Patients with LNR <0.1 tended to have better 3-year DMFS (87.2 % vs. 66.4 %, p = 0.06, Fig. 3). The subgroup analysis for lymph node-positive patients showed that higher LNR had poor 3-year OS (p = 0.003, Fig. 4) and LFFS (p = 0.011, Fig. 5). High LNR group had poorer DMFS than medium and low LNR group (Fig. 6), but it did not reached statistically significance (p = 0.18). The absolute number of lymph node metastases had no significant difference on OS (p = 0.28), LFFS (p = 0.46) and DMFS (p = 0.96).Table 2

Bottom Line: The median value of LNR for lymph nodes positive patients was 0.1.In univariate analysis, patients with an LNR value less than 0.1 had better 3-year OS (67.0% vs.41.0%, p = 0.004), 3-year LFFS (76.1% vs. 54.9%, p = 0.015) and 3-year DMFS (87.2% vs. 66.4%, p = 0.06).Multivariate analysis revealed that LNR was an independent prognostic factor for OS (hazard ratio [HR] = 2.92; 95% confidence interval [CI] = 1.367-6.242; p = 0.006) and LFFS (HR = 4.12; 95% CI = 1.604-10.59; p = 0.003).

View Article: PubMed Central - PubMed

Affiliation: Department of Radiation Oncology, Taichung Veterans General Hospital, No.1650, Sect. 4, Taiwan Boulevard, Taichung, 40705, Taiwan, Republic of China. chiencheh@gmail.com.

ABSTRACT

Background: Lymph node status is one prognostic factor in head and neck cancer. The purpose of this study is to investigate the prognostic value of lymph node ratio (LNR) in head and neck cancer patients who received surgery plus postoperative chemoradiotherapy.

Methods: From May 1991 to December 2012, a total of 117 head and neck cancer patients who received surgery plus postoperative chemoradiotherapy were analyzed. The primary sites were oral cavity (93), oropharynx (13), hypopharynx (6), and larynx (5). All patients had pathologically confirmed squamous cell carcinoma and 63 patients had neck lymph nodes metastasis. LNR was calculated for each patient. The endpoints were overall survival (OS), local failure-free survival (LFFS), and distant metastasis-free survival (DMFS).

Results: The median follow up time was 36 months, with a range from 3.4 to 222 months. The 3-year rates of OS, LFFS, and DMFS were 59.7, 70.3, and 81.8%, respectively. The median value of LNR for lymph nodes positive patients was 0.1. In univariate analysis, patients with an LNR value less than 0.1 had better 3-year OS (67.0% vs.41.0%, p = 0.004), 3-year LFFS (76.1% vs. 54.9%, p = 0.015) and 3-year DMFS (87.2% vs. 66.4%, p = 0.06). Multivariate analysis revealed that LNR was an independent prognostic factor for OS (hazard ratio [HR] = 2.92; 95% confidence interval [CI] = 1.367-6.242; p = 0.006) and LFFS (HR = 4.12; 95% CI = 1.604-10.59; p = 0.003).

Conclusion: LNR is an important prognosis factor for OS and LFFS in head and neck cancer patients.

No MeSH data available.


Related in: MedlinePlus