[Surgical treatment of thyroid cancer metastases in the 7th (retrosternal) group of lymph nodes]. / Khirurgicheskoe lechenie metastazov raka shchitovidnoi zhelezy v 7-yu (zagrudinnuyu) gruppu limfaticheskikh uzlov.

The incidence of thyroid cancer (TC) is being significantly increased. A significant percentage consists of metastatic cancer (MCP) in particular in the anterior-superior mediastinal lymph nodes (Group 7). MATERIAL AND METHODS: 153 out of 324 patients with metastatic TC underwent video-assisted lymphadenectomy of group 7 of lymph nodes. The operations were combined with interventions on the primary tumor or on cervical lymph nodes in case of recurrence. RESULTS: The possibility of long-term survival (over 10 years) was studied in more than 80% of cases. Sternotomy is advisable in case of impossible video-assisted procedure.

[Endolaryngeal surgery and photodynamical therapy of using flexible videoendoscopic devices to treat laryngeal cancer and premalignancy].

Patients with laryngeal cancer (LC) and premalignancy admitted to P.A. Gertsen Moscow Research Oncological Institute were treated by the methods of endolaryngeal surgery making use of flexible videoendoscopic devices, Nd:YAG laser-assisted thermal ablation, argon plasma coagulation, electroresection, and photodynamical therapy. A total of 129 patients were given treatment by these techniques following distant radiotherapy including 23 with grade I-III laryngeal dyskeratosis and dysplasia, 36 with virus-associated recurrent laryngeal papillomatosis, 37 with early cancer (Tis-T1NoMo) in the middle part of the larynx, 17 with a residual tumour, and 16 with mid-laryngeal cancer (T1-2NoMo). The above treatments resulted in complete regression (CR) of dyskeratosis and grade I-III dysplasia in 22 (95%) of the 23 patients and CR of recurrent papilllomatosis in 27 (75%) of the 36 patients. Moreover, complete regression was achieved in 34 (92%) of the 37 patients with laryngeal cancer. It recurred in 3 (9%) of the 34 patients. In all cases, the vocal function was completely restored. In groups with residual and recurring laryngeal tumours, complete remission was documented in 27 (82%) of the 33 patients. LC recurred in three patients within 1-5 years after completion of the treatment.

[Combined endolaryngeal videoendoscopic surgery and photodynamic treatment of patients with recurrent laryngeal and tracheal papillomatosis].

Two-stage combined treatment of chronic recurrent papillomatosis of the larynx and trachea has been designed and tested in P.A. Herzen Research Cancer Institute. Stage I of the treatment consisted in endolaryngeal videoendoscopic surgery with Nd:YAG-laser destruction, argon-plasma coagulation and electroresection of the papilloma; stage II - postoperative photodynamic therapy (PDT) to prevent recurrence. In 1995-2007 the treatment was given to 32 patients aged 10-66 years with recurrent papillomatosis of the airways with the disease history 5-58 years. In two thirds of the patients papillomatosis involved several parts of the larynx and trachea. Squamous cell papilloma was accompanied with dysplasia of the first-second degree in 10 (31%) patients, dysplasia of the third degree - in 4 (12,5%), cancer in situ - in 3 (9,4%) patients. Human papilloma virus (HPV) was detected by hybridization in situ in 96%. The course of the treatment resulted in a complete regression (CR) of papilloma in 25 of 32 (78%), partial regression in 7 patients. The recurrence-free interval averaged 32 months (maximal 7 years) in 14 of 25 patients with CR. HPV was eradicated in a group of patients with persistent clinical remission. A 6 to 19 month follow-up recorded papilloma recurrence in 11 patients. The recurrence-free period increased 2,5-fold. In patients with dysplasia of degree I-III and cancer in situ (n=17) CR of dysplasia and preinvasive cancer foci was achieved in 15 (88%) patients.