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01.05.2014 | Endocrine Tumors | Ausgabe 5/2014

Annals of Surgical Oncology 5/2014

Outcomes of Total Thyroidectomy with Therapeutic Central and Lateral Neck Dissection with a Single Dose of Radioiodine in the Treatment of Regionally Advanced Papillary Thyroid Cancer and Effects on Serum Thyroglobulin

Zeitschrift:
Annals of Surgical Oncology > Ausgabe 5/2014
Autoren:
MD David T. Hughes, MD Barbra S. Miller, MD Mark S. Cohen, MD Gerard M. Doherty, MD Paul G. Gauger

Abstract

Background

Achieving an undetectable serum thyroglobulin (Tg) level (<1.0 ng/mL) after surgical and radioiodine treatment for papillary thyroid cancer (PTC) is associated with low recurrence rates and has been termed biochemical remission. This study aimed to determine the effectiveness of total thyroidectomy with therapeutic central and lateral neck dissection for regionally advanced (T1–4bN1bM0) PTC with regard to posttreatment Tg levels.

Methods

This is a single-institution retrospective cohort study of patients with regionally advanced PTC initially treated with total thyroidectomy and therapeutic levels 2–7 neck dissection from 2002 to 2012. Pathologic findings, complications, serum Tg levels, and outcomes were analyzed.

Results

Sixty-one patients were initially treated with total thyroidectomy and therapeutic central and lateral neck dissection for PTC involving the lateral cervical nodes (N1b). The median number of lymph nodes excised and positive was 27 (range 5–112) and 9 (range 1–67), respectively. Extranodal extension occurred in 48 %. Radioiodine was administered after surgery with a median total dose of 150 mCi (range 30–244 mCi). Recurrent or persistent cervical disease occurred in 8 (13 %) and 3 (5 %) patients, respectively, and required additional radioiodine treatment in 2 and reoperative neck dissection in 10. Three patients developed new distant metastasis, and 1 died during the median follow-up of 20 months (range 1–109 months). Undetectable unstimulated Tg (<1.0 ng/mL) without clinically detectable recurrence was experienced in 68 % of patients with initial treatment.

Conclusions

Biochemical remission can be experienced in most patients presenting with regionally advanced PTC with total thyroidectomy and compartment based therapeutic neck dissection followed by a single dose of radioiodine.

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