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Ultrasonic scalpel with knot tying protects parathyroid function for total thyroidectomy with central neck dissection.

ABSTRACT: Background:Hypoparathyroidism might be due to collateral thermal injury induced by harmonic scalpel (HS) after total thyroidectomy (TT) with central neck dissection (CND). The current study aimed to evaluate whether a clamp and tie (CAT) technique used to preserve parathyroid glands in situ could reduce damage to parathyroid function in HS patients undergoing TT plus unilateral or bilateral CND. Methods:Medical records of 537 HS-operated patients with papillary thyroid carcinoma (PTC) undergoing TT plus unilateral or bilateral CND were retrospectively evaluated. Patients were divided into HS and HS-CAT groups based on whether the CAT techniques were used near parathyroid glands. Patients' characteristics such as age, sex, tumour size, operative time, pre- and post-operative levels of parathyroid hormone (PTH) and complications were analysed. Results:For patients undergoing TT plus unilateral CND, operative time was significantly shorter (P<0.001), but there were signi?cantly higher incidences of transient hypoparathyroidism (P=0.002) on postoperative day 1 and incidental parathyroidectomy (P=0.036) in the HS group. There was no significant difference in permanent hypoparathyroidism. For patients undergoing TT plus bilateral CND, a significantly shorter operative time and sharper postoperative PTH decline was found in the HS group (P=0.029). However, there were no significant differences regarding incidences of incidental parathyroidectomy, transient or permanent hypoparathyroidism. Conclusions:The CAT technique applied near parathyroid glands was a practical surgical application for decreasing the incidence of postoperative transient hypoparathyroidism for TT plus unilateral CND.

SUBMITTER: Jiang J

PROVIDER: S-EPMC7225474 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Ultrasonic scalpel with knot tying protects parathyroid function for total thyroidectomy with central neck dissection.

Jiang Jun J Shen Meiping M Lu Hui H

Gland surgery 20200401 2

<h4>Background</h4>Hypoparathyroidism might be due to collateral thermal injury induced by harmonic scalpel (HS) after total thyroidectomy (TT) with central neck dissection (CND). The current study aimed to evaluate whether a clamp and tie (CAT) technique used to preserve parathyroid glands in situ could reduce damage to parathyroid function in HS patients undergoing TT plus unilateral or bilateral CND.<h4>Methods</h4>Medical records of 537 HS-operated patients with papillary thyroid carcinoma ( ...[more]

PMID: 32420242

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Project description:BackgroundIn an era of rising differentiated thyroid cancer incidence, the rate and impact of neck reoperation may inform the intensity of earlier interventions and surveillance. This study sought to define predictors of neck reoperation and to assess its impact on survival.MethodsUsing the California Cancer Registry linked to the California Office of Statewide Health Planning and Development records, a retrospective cohort study was performed of 24,230 patients with total or near-total thyroidectomy for papillary or follicular thyroid cancer between 1991 and 2008 and follow-up through 2013. The primary outcome was neck reoperation 91 days to 5 years after the initial thyroid surgery. Using logistic and Cox proportional hazards regression, the impact of sociodemographics, tumor staging, and hospital thyroid cancer surgery volume on neck reoperation and survival was determined.ResultsNeck reoperation was identified in 1231 (5.1%) patients in increasing odds from 1991 to 2008. In multivariable models, male sex, papillary thyroid cancer, and advancing tumor stage were associated with neck reoperation. Among men, neck reoperation was associated with Asian/Pacific Islander (odds ratio [OR] = 1.44 [confidence interval (CI) 1.07-1.94]) race/ethnicity. Among women, neck reoperation was associated with younger age (15-34 years; OR = 1.50 [CI 1.17-1.92] versus ≥55 years), and Asian/Pacific Islander (OR = 1.24 [CI 1.02-1.51]) or Hispanic (OR = 1.20 [CI 1.00-1.44]) race/ethnicity. After controlling for baseline characteristics, neck reoperation predicted worse thyroid cancer-specific survival (hazard ratio = 4.26 [CI 3.50-5.19]). The effect differed between men and women, and was most pronounced among women who received radioiodine in initial treatment (hazard ratio = 8.32 [CI 6.14-11.27]).ConclusionsNeck reoperation is becoming increasingly frequent and is strongly predictive of mortality. Advancing tumor stage, Asian/Pacific Islander race/ethnicity, male sex, as well as younger age and Hispanic ethnicity among women predict a higher risk for neck reoperation and subsequent mortality, reflecting a higher risk of persistent or more biologically aggressive disease.

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Ultrasonic scalpel with knot tying protects parathyroid function for total thyroidectomy with central neck dissection.

Publications

Ultrasonic scalpel with knot tying protects parathyroid function for total thyroidectomy with central neck dissection.

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