Comparison of the Incidence of Postoperative Hypothyroidism in Patients Undergoing Conventional Thyroid Lobectomy and Pyramid- and Isthmus-Preserving Lobectomy.

Min Jeong Cho,Su-Jin Kim,Young Jun Chai,June Young Choi,Sang Il Choi,Sang Joon Park,Kyu Eun Lee,Hyeong Won Yu,Doohee Lee,Woochul Kim,Yeo Koon Kim,Alexander Schreiber

doi:10.1155/2021/8162307

Abstract

Hypothyroidism is a recognized sequela of conventional thyroid lobectomy. However, there have been no studies on the incidence of hypothyroidism following the preservation of the isthmus and pyramid during lobectomy. Therefore, in the present study, we compared the incidence of hypothyroidism following conventional lobectomy and lobectomy during which the isthmus and pyramidal lobe were preserved. Data for a total of 65 patients collected between September 2018 and April 2019 were reviewed retrospectively. Circulating thyroid-stimulating hormone (TSH) concentration was measured before and after surgery in a group who underwent conventional thyroid lobectomy (n = 29) and in a group in which the isthmus and pyramid were preserved (n = 36). We found no significant difference in TSH concentration between the two groups before surgery, or 3 months or 1 year after surgery. Thus, there might be no difference in the incidence of postoperative hypothyroidism between patients who undergo conventional thyroid lobectomy and those in which the isthmus and pyramid are preserved.

Highlights

E mean TSH concentration of the conventional group before surgery was 1.45 μIU/ml, and that of the PIPL group was 1.52 μIU/ml
We showed that in the group that underwent conventional thyroid lobectomy, ∼52% of the thyroid volume was resected, with ∼48% of the volume remaining
For the first time, we compared the incidences of hypothyroidism following surgery in patients who underwent either conventional thyroid lobectomy or PIPL lobectomy and found no significant difference

Summary

Introduction

E mean TSH concentration of the conventional group before surgery was 1.45 μIU/ml, and that of the PIPL group was 1.52 μIU/ml. Ree months after surgery, the mean TSH concentration of the conventional group was 3.25 μIU/ml and that of the PIPL group was 3.4 μIU/ml (p 0.701). The mean TSH concentration of the conventional group was 3.41 μIU/ml and that of the PIPL group was 3.74 μIU/ml (p 0.451).

Objectives

Results

Conclusion