Comparative Study between Total Thyroidectomy with Ipsilateral versus Bilateral Prophylactic Central Neck Dissection in Patients with Clinically Node – Negative Papillary Thyroid Carcinoma. A Meta-Analysis

Abstract

Abstract Background Papillary thyroid carcinoma (PTC) accounts for > 80% of all thyroid malignancies. It is generally slow-growing and the overall prognosis is excellent, with 5-year, 10-year, and 20-year survival rates of 94%, 89%, and 87%, respectively. Aim of the Work The aim of this study is to compare between unilateral PCND and bilateral PCND in patients with clinically unifocal cN0 PTC using meta-analysis approach Methodology A Systemic review and meta-analysis Study was performed after the data extraction process. Five studies comparing the out-comes of unilateral PCND and bilateral PCND procedures in adult patients with PTC CN0 were included in this study. The publicly available literature on PubMed, and, the Web of Knowledge, and the China Journal Net, EMBASE, Cochrane Library, and Scopus databases and the ClinicalTrials.gov registry. Published from January 2005 to December 2020 concerning TT plus ipsilateral PCND versus TT plus bilateral PCND for PTC CN0 will be retrieved by searching the national and international online databases. Results The result of our study revealed that: Bilateral central neck dissection had higher insignificant operative time than ipsilateral one, bilateral central neck dissection had higher overall significant complications rate than ipsilateral one, bilateral central neck dissection had higher significant permanent hypo PTH and insignificant hematoma, seroma, and transient hypo PTH rate than ipsilateral one, ipsilateral central neck dissection had higher insignificant PRLNP, TRLNP rate nearly equal with bilateral one, ipsilateral CND appears to be sufficient in patients with tumors<1 cm as bilateral central neck dissection had higher insignificant tumor size than ipsilateral one, there was no statistically significant difference found between unilateral PCND and bilateral PCND regarding rate of recurrence. Conclusion We suggest that, ipsilateral central neck dissection may be a reasonable surgical option for prophylactic CND in unilateral PTC with clinically negative lymph nodes because of its lower rates of contralateral paratracheal node metastasis and transient hypoparathyroidism and lower complications than bilateral pCND. and effective for selected patients undergoing a total thyroidecto- my for cN0 unilateral PTC.