World J Oncol

World Journal of Oncology, ISSN 1920-4531 print, 1920-454X online, Open Access

Article copyright, the authors; Journal compilation copyright, World J Oncol and Elmer Press Inc

Journal website https://www.wjon.org

Short Communication

Volume 15, Number 1, February 2024, pages 136-142

Clinical Outcomes of Curative Intent Radiotherapy by Helical Tomotherapy for Laryngeal Squamous Cell Carcinoma: A Retrospective Analysis in a Tertiary Referral Center

Figures

Figure 1. Treatment plan of helical tomotherapy: the primary and positive lymph node covered by a dose of 70 Gy. The prophylactic lymph node levels of the ipsilateral side of the lymph node-positive side (right side) are covered by 59.4 Gy. The contralateral side of the positive lymph node (left side) is covered by 54 Gy.

Figure 2. Kaplan-Meier curves for overall survival (a), disease-free survival (b), local control (c), and laryngeal preservation (d) rates in all patients.

Tables

**Table 1.** Patient Characteristics of the Present Cohort
Variables	N (%)
Age, median (range)	69 (41 - 84)
Sex
Male	37 (82%)
Female	8 (18%)
Karnofsky performance status
100	1 (2%)
90	36 (80%)
80	8 (18%)
Tumor location
Supraglottic	28 (62%)
Glottic	14 (31%)
Subglottic	3 (7%)
Clinical T stage
1	9 (20%)
2	19 (42%)
3	16 (36%)
4	1 (2%)
Clinical N stage
0	34 (76%)
1	5 (11%)
2	5 (11%)
3	1 (2%)

**Table 2.** Combination Therapy With Curative Intent Radiotherapy, Stratified by Clinical Stage
Variables	N (%)
CCRT: concurrent chemoradiotherapy; ND: neck dissection; IDC: induction chemotherapy.
I
RT alone	9 (100%)
II
RT alone	13 (93%)
CCRT	1 (7%)
III
CCRT	11 (69%)
IDC and RT alone	4 (25%)
ND and CCRT	1 (6%)
IV
RT alone	1 (17%)
CCRT	3 (50%)
IDC, ND, and CCRT	2 (33%)