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Kuo TC, Chen KY, Lai CW, Wang YC, Lin MT, Chang CH, Wu MH. Comparison of safety, efficacy, and patient satisfaction with thermal ablation versus endoscopic thyroidectomy for benign thyroid nodules in a propensity-matched cohort. Int J Surg 2024; 110:2568-2576. [PMID: 38376867 DOI: 10.1097/js9.0000000000001201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/04/2024] [Indexed: 02/21/2024]
Abstract
BACKGROUND Thyroid nodules (TNs) often require intervention due to symptomatic or cosmetic concerns. Radiofrequency ablation (RFA) has shown promise as a treatment option, offering potential advantages without neck scars. Recently, the scarless treatment alternative of transoral endoscopic thyroidectomy vestibular approach (TOETVA) has emerged. When surgery can be performed in a scarless manner, it remains unclear whether ablation is still the preferred treatment choice. This study aims to compare the safety, efficacy, and patient satisfaction of RFA and TOETVA. STUDY DESIGN A retrospective data analysis was conducted on patients treated with RFA or TOETVA for unilateral benign TNs between December 2016 and September 2021. Propensity score matching was employed to create comparable groups. Various clinicopathologic parameters, treatment outcomes, and costs were assessed. RESULTS Of the 2814 nonfunctional thyroid nodules treated during this period, 642 were benign and unilateral. A total of 121 and 100 patients underwent thermal ablation and transoral endoscopic thyroidectomy, respectively. After matching, 84 patients were selected for each group. Both RFA and TOETVA demonstrated low complication rates, with unique complications associated with each procedure. Treatment time (30.8±13.6 vs. 120.7±36.5 min, P <0.0001) was shorter in the RFA group. Patient satisfaction (significant improvement: 89.3% vs. 61.9%, P <0.0001) and cosmetic results (cosmetic score 1-2: 100.0% vs. 54.76%, P <0.0001) favored TOETVA. RFA was found to be less costly for a single treatment, but the cost of retreatment should be considered. The histological diagnoses post-TOETVA revealed malignancies in 9 out of 84 cases, underscoring the significance of follow-up assessments. CONCLUSION Scarless procedures, RFA and TOETVA, are effective for treating unilateral benign TNs, each with unique advantages and drawbacks. While RFA is cheaper for a single treatment, TOETVA offers superior cosmetic results and patient satisfaction. Further research is needed to evaluate long-term safety and cost-effectiveness. It is crucial to remain vigilant about the possibility of malignancy despite benign cytology pre-treatment.
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Affiliation(s)
| | | | - Chieh-Wen Lai
- Department of Surgery, Buddhist Tzu Chi General Hospital
| | - Yi-Chia Wang
- Anesthesiology, National Taiwan University Hospital
| | | | - Chin-Hao Chang
- Department of Medical Research, National Taiwan University Hospital & National Taiwan University, Taipei, Taiwan
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Apostolou K, Paunovic I, Frountzas M, Zivaljevic V, Tausanovic K, Karanikas M, Koutelidakis I, Schizas D. Posthemithyroidectomy Hypothyroidism: Updated Meta-Analysis of Risk Factors and Rates of Remission. J Surg Res 2024; 293:102-120. [PMID: 37734294 DOI: 10.1016/j.jss.2023.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/09/2023] [Accepted: 08/23/2023] [Indexed: 09/23/2023]
Abstract
INTRODUCTION The aim of this study was to determine the incidence and risk factors for hypothyroidism, both clinical and subclinical, following hemithyroidectomy in preoperatively euthyroid patients, as well as hypothyroidism remission and its time of remission. MATERIALS AND METHODS A search was performed in Medline (via PubMed), Web of Science, and the Cochrane Library using the keywords "hemithyroidectomy + postoperative + hypothyroidism" and "hemithyroidectomy + hormone supplementation". RESULTS Fifty-four studies with a total of 9,999 patients were included. After a mean follow-up interval of 48.2 mo, the pooled hypothyroidism rate was 29%. The subclinical hypothyroidism rate was 79% of patients with hypothyroidism (18 studies). Moreover, a meta-analysis of 12 studies indicated a pooled hypothyroidism remission rate after hemithyroidectomy of 42% (95% CI: 24%-60%). Older patient age (MD = -2.54, 95% CI = -3.99, -1.10, P = 0.0006), female gender (OR = 0.69, 95% CI = 0.58, 0.82, P < 0.0001), higher preoperative thyroid-stimulating hormone levels (MD = -0,81, 95% CI = -0.96, -0.66, P < 0.00001), pathological preoperative anti-thyroid peroxidase antibodies (OR = 0.37, 95% CI = 0.24, 0.57, P < 0.00001) and anti-thyroglobulin antibodies (OR = 0.52, 95% CI = 0.36, 0.75, P = 00,005), and right-sided hemithyroidectomy (OR = 0.54, 95% CI = 0.43, 0.68, P < 0.00001) were associated with postoperative hypothyroidism development. In metaregression analysis, Asia presented a significantly higher hypothyroidism rate after hemithyroidectomy (34.6%, 95% CI = 29.3%-9.9%), compared to Europe (22.9%, 95% CI = 16.2%-29.5%, P = 0.037) and Canada (1.8%, 95% CI = -22.6%-26.2%, P = 0.013). CONCLUSIONS Hypothyroidism is a frequent and significant postoperative sequela of hemithyroidectomy, necessitating individualization of treatment strategy based on the underlying disease as well as the estimated risk of hypothyroidism and its risk factors.
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Affiliation(s)
- Konstantinos Apostolou
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece.
| | - Ivan Paunovic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Belgrade, Serbia; Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Maximos Frountzas
- 1st Department of Propaedeutic Surgery, Medical School University of Athens, "Hippocratio" General Hospital, Athens, Greece
| | - Vladan Zivaljevic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Belgrade, Serbia; Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Katarina Tausanovic
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Belgrade, Serbia; Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Michael Karanikas
- 1st University Surgical Department, University Hospital of Alexandropoulis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ioannis Koutelidakis
- Second Department of Surgery, Aristotle University of Thessaloniki, G. Gennimatas General Hospital, Thessaloniki, Greece
| | - Dimitrios Schizas
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
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Prévot J, Potard G, Thuillier P, Roudaut N, Le Pennec R, Leclère JM, Mahéo C, Marianowski R, Leclère JC. Risk factors for hypothyroidism following hemithyroidectomy. ANNALES D'ENDOCRINOLOGIE 2023; 84:739-745. [PMID: 37517518 DOI: 10.1016/j.ando.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 08/01/2023]
Abstract
OBJECTIVE Hypothyroidism is the most common complication of hemithyroidectomy for thyroid nodules. This retrospective cohort study investigated the prognostic factors for hypothyroidism following hemithyroidectomy. METHODS We included patients who underwent hemithyroidectomy between 2016 and 2017, excluding those with history of preoperative hypothyroidism or malignancy on histopathological examination. The primary endpoint was development of hypothyroidism during follow-up (TSH≥2 above normal). RESULTS Twenty-six of the 128 included patients (20%) developed postoperative hypothyroidism. The following independent prognostic factors were found: preoperative TSH level>1.5 mIU/L (OR 2.11; P=0.013), and remaining thyroid volume adjusted for body surface area<4.0mL/m2 (OR 1.77; P=0.015). Twenty-one patients (81%) had first TSH values above the upper limit of normal. Postoperatively, first TSH level correlated significantly with the preoperative value (R=0.5779, P<0.001). Levothyroxine was prescribed to 16% of patients, with a mean dose of 0.92μg/kg/day. CONCLUSION Patients with TSH>1.5 mIU/or remaining thyroid volume adjusted for body surface area<4.0mL/m2 should have intensified clinical and biological follow-up in the first year after surgery.
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Affiliation(s)
- Julien Prévot
- Department of Head, Neck surgery, University Hospital of Brest, 4, avenue Foch, 29200 Brest, France
| | - Gaël Potard
- Department of Head, Neck surgery, University Hospital of Brest, 4, avenue Foch, 29200 Brest, France
| | - Philippe Thuillier
- Department of Endocrinology, University Hospital of Brest, Brest, France
| | - Nathalie Roudaut
- Department of Endocrinology, University Hospital of Brest, Brest, France
| | - Romain Le Pennec
- Department of Nuclear Medicine, University Hospital of Brest, Brest, France
| | - Jean-Michel Leclère
- Department of Head, Neck surgery, University Hospital of Brest, 4, avenue Foch, 29200 Brest, France; School of Medicine, University of Limerick, Limerick, Ireland
| | - Clémentine Mahéo
- Department of Head, Neck surgery, University Hospital of Brest, 4, avenue Foch, 29200 Brest, France
| | - Rémi Marianowski
- Department of Head, Neck surgery, University Hospital of Brest, 4, avenue Foch, 29200 Brest, France
| | - Jean-Christophe Leclère
- Department of Head, Neck surgery, University Hospital of Brest, 4, avenue Foch, 29200 Brest, France.
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Ellsworth BL, Sinco B, Matusko N, Pitt SC, Hughes DT, Gauger PG, Englesbe M, Underwood HJ. Examining National Guideline Changes Association With Hemithyroidectomy Rates by Surgeon Volume. J Surg Res 2023; 283:858-866. [PMID: 36915013 DOI: 10.1016/j.jss.2022.11.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/26/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022]
Abstract
INTRODUCTION The 2015 American Thyroid Association (ATA) guidelines established that hemithyroidectomy (HT) is an appropriate treatment for patients with low-risk thyroid cancer. HT rates increased since the ATA guidelines were released; however, the relationship between surgeon volume and the initial extent of surgery has not been established. METHODS A statewide database was used to identify patients with thyroid cancer who underwent initial thyroidectomy from 2013 to 2020. High-volume thyroid surgeons were defined as those who performed >25 thyroid procedures per year. A mixed-effect logistic model was used to compare low- and high-volume surgeons' initial extent of surgery pre-2015 and post-2015 ATA guidelines. Descriptive statistics were used to describe other surgical outcomes. RESULTS The analysis included 3199 patients with thyroid cancer who underwent initial thyroidectomy. Twenty-four surgeons (6%) were considered high-volume; they performed 48% (n = 1349) of the operations. After the 2015 ATA guidelines were released, the rate of HT increased significantly for low- (23% to 28%, P = 0.042) but not high-volume (19% to 23%, P = 0.149) surgeons. Low-volume surgeons had significantly higher rates of readmission (P = 0.008), re-operation (P = 0.030), complications (P < 0.001), and emergency room visits (P = 0.002) throughout the entire study period. CONCLUSIONS The publication of the 2015 ATA guidelines was associated with a significant increase in HT rates, primarily in low-volume thyroid surgeons. While low-volume surgeons began performing more HTs, they continued to have higher rates of readmission, reoperations, complications, and emergency room visits than high-volume surgeons.
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Affiliation(s)
| | - Brandy Sinco
- Department of Surgery, Michigan Medicine, Ann Arbor, Michigan; Center for Healthcare Outcomes and Policy, Michigan Medicine, Ann Arbor, Michigan
| | - Niki Matusko
- Department of Surgery, Michigan Medicine, Ann Arbor, Michigan; Center for Healthcare Outcomes and Policy, Michigan Medicine, Ann Arbor, Michigan
| | - Susan C Pitt
- Department of Surgery, Michigan Medicine, Ann Arbor, Michigan; Center for Healthcare Outcomes and Policy, Michigan Medicine, Ann Arbor, Michigan
| | - David T Hughes
- Department of Surgery, Michigan Medicine, Ann Arbor, Michigan
| | - Paul G Gauger
- Department of Surgery, Michigan Medicine, Ann Arbor, Michigan
| | - Michael Englesbe
- Department of Surgery, Michigan Medicine, Ann Arbor, Michigan; Center for Healthcare Outcomes and Policy, Michigan Medicine, Ann Arbor, Michigan
| | - Hunter J Underwood
- University of Michigan School of Medicine, Ann Arbor, Michigan; Department of Surgery, Michigan Medicine, Ann Arbor, Michigan.
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Chaabouni MA, Sellami M, Jameleddine E, Kharrat R, Thabet W, Mnejja M, Hammami B, Ayadi S, Achour I, Charfeddine I. Predictive factors for hypothyroidy after hemithyroidectomy. F1000Res 2022; 11:1355. [PMID: 36636474 PMCID: PMC9811031 DOI: 10.12688/f1000research.127367.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Background: Hemithyroidectomy is one of the most common procedures performed. It is used to treat patients with benign unilateral nodules. Hemithyroidectomy results in fewer risks of hypothyroidism and the need for thyroid hormone replacement therapy. The present study was designed to identify potential clinicopathologic risk factors associated with the onset of biochemical hypothyroidism. Methods: We conducted a retrospective review of all patients who underwent hemithyroidectomy between 2004 and 2019. Hypothyroidism was defined as a serum thyrotropin level greater than 5 mIU/L. The patients were analyzed for age, sex, preoperative and postoperative thyroid stimulating hormone (TSH), state, side, and volume of the remaining lobe, and histologic diagnosis. Results: Hypothyroidism was diagnosed in 30.8% of 214 patients. This complication appeared in the first year in 83.3% of the cases. A preoperative TSH level greater than 1.32 mIU/l, a remaining volume of the lobe less than 3 ml, and the presence of thyroiditis were associated with a significant increase in the risk of developing hypothyroidism (p<0.01). There were no significant differences in age, sex, state, and side of the remaining lobe. The mean thyroxine dose was 57 ± 26 micrograms. Conclusions: The risk of hypothyroidism after hemithyroidectomy should be assessed prior to surgery. Close monitoring is recommended in patients at high risk of developing this complication. However, all patients who undergo hemithyroidectomy should be monitored at least for the first year.
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Affiliation(s)
- Mohamed Amine Chaabouni
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Moncef Sellami
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia,
| | - Esma Jameleddine
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Rania Kharrat
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Wadii Thabet
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Malek Mnejja
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Boutheina Hammami
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Sirine Ayadi
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Imen Achour
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
| | - Ilhem Charfeddine
- Department of Otorhinolaryngology Head and Neck Surgery, Habib Bourguiba University Hospital, Sfax, Tunisia,University of Sfax, Sfax, Tunisia
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Roberson J, Huang H, Noldner C, Hou W, Mani K, Valentine E, Ryu S, Stessin A. Thyroid volume changes following adjuvant radiation therapy for breast cancer. Clin Transl Radiat Oncol 2022; 39:100566. [PMID: 36582422 PMCID: PMC9792369 DOI: 10.1016/j.ctro.2022.100566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/18/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Background and purpose Incidental thyroid gland irradiation frequently occurs in breast cancer patients who receive regional nodal irradiation (RNI) to the supraclavicular (SCV) region. Recent studies suggest hypothyroidism (HT) is a complication of radiation therapy (RT) that includes SCV fields. We retrospectively analyzed patients who received RNI to evaluate thyroid gland evolution following RT as well as its association with the development of HT. Materials and methods 61 breast cancer patients received SCV-directed RT between 2007 and 2019 and met inclusion criteria. Thyroid glands were retrospectively contoured on CT simulation and follow-up images. Individual dose-volume histograms were analyzed to determine thyroid volume within and outside specific isodose lines. Relative thyroid volume changes based on different radiation doses were estimated by fusing post-RT scans with CT simulation. Logistic regression was performed to assess thyroid volume changes as a factor in the development of HT. Results Median pre-treatment thyroid volume was 11.8 cc (range: 6.3-74.1 cc) with a median of 42.2 % within the 20 Gy and 23.2 % within the 40 Gy isodose lines. A significant decrease in thyroid volume was noted by 1-year post-treatment (p < 0.0001) and thereafter. By 4 years post-treatment, average thyroid volume was decreased by 29.7 % (range: 2.3-64.4 %). Thyroid volume receiving 40 Gy or higher demonstrated a greater decrease compared to those receiving lower irradiation dosage. HT occurred in 17 patients (27.9 %). Patients who developed HT displayed a larger decrease in the thyroid volume receiving between 20 and 40 Gy at 12 months (p = 0.033). Conclusion Our study demonstrates for the first time that a reduction in thyroid volume may be seen as early as 6 months after SCV-directed RT for breast cancer, which correlates with development of clinical and subclinical HT. Furthermore, a dose-dependent correlation exists between thyroid subvolume reduction and SCV-directed RT in breast cancer patients. As feasible, efforts should be made to reduce the dose to the thyroid in patients who undergo RNI for breast cancer.
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Affiliation(s)
- John Roberson
- Department of Radiation Oncology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Huakang Huang
- Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Collin Noldner
- Department of Radiation Oncology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Wei Hou
- Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Kartik Mani
- Department of Radiation Oncology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
- Department of Biomedical Informatics, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Edward Valentine
- Department of Radiation Oncology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Samuel Ryu
- Department of Radiation Oncology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
- Department of Pharmacology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Alexander Stessin
- Department of Radiation Oncology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
- Department of Pharmacology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
- Corresponding author at: Department of Radiation Oncology, HSC T-3, Stony Brook University, Stony Brook, NY 11794-8165.
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Leboulleux S, Lamartina L, Lecornet Sokol E, Menegaux F, Leenhardt L, Russ G. SFE-AFCE-SFMN 2022 Consensus on the management of thyroid nodules : Follow-up: How and how long? ANNALES D'ENDOCRINOLOGIE 2022; 83:407-414. [PMID: 36283461 DOI: 10.1016/j.ando.2022.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The SFE-AFCE-SFMN 2022 consensus deals with the management of thyroid nodules, a condition that is a frequent reason for consultation in endocrinology. In more than 90% of cases, patients are euthyroid, with benign non-progressive nodules that do not warrant specific treatment. The clinician's objective is to detect malignant thyroid nodules at risk of recurrence and death, toxic nodules responsible for hyperthyroidism or compressive nodules warranting treatment. The diagnosis and treatment of thyroid nodules requires close collaboration between endocrinologists, nuclear medicine physicians, surgeons, and other specialists. Therefore, this consensus statement was established jointly by 3 societies: the French Society of Endocrinology (SFE), French Association of Endocrine Surgery (AFCE) and French Society of Nuclear Medicine (SFMN); the various working groups included experts from other specialties (pathologists, radiologists, pediatricians, biologists, etc.). This section deals with the follow-up of thyroid nodules, low-grade tumors and microcarcinomas.
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Affiliation(s)
- Sophie Leboulleux
- Service d'Endocrinologie, Hôpitaux Universitaires de Genève, 4 Rue Gabrielle Perret-Gentil, 1205 Genève, Switzerland.
| | - Livia Lamartina
- Endocrine Oncology, Gustave Roussy and University Paris Saclay, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | | | - Fabrice Menegaux
- Endocrine Surgery Department, Pitié-Salpêtrière Hospital APHP, Institute of Cancer IUC, Sorbonne University GRC N°16, 83 Boulevard de l'Hôpital, 75013 Paris, France; Centre de Pathologie et d'Imagerie, 14 Avenue René Coty, 75014 Paris, France
| | - Laurence Leenhardt
- Thyroid and Endocrine Tumors Department, Pitié Salpêtrière Hospital, APHP, Institute of Cancer IUC, Sorbonne University, 83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Gilles Russ
- Centre de Pathologie et d'Imagerie, 14 Avenue René Coty, 75014 Paris, France; Thyroid and Endocrine Tumors Department, Pitié-Salpêtrière Hospital APHP, Institute of Cancer IUC, Sorbonne University GRC N°16, 83 Boulevard de l'Hôpital, 75013 Paris, France
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Stein E, Raval MV, Hazkani I, Reiter A, Josefson JL, Samis JH, Rastatter JC. The 2015 American Thyroid Association guidelines and trends in hemithyroidectomy utilization for pediatric thyroid cancer. Head Neck 2022; 44:1833-1841. [PMID: 35596687 DOI: 10.1002/hed.27098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/14/2022] [Accepted: 05/05/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND In 2015, the American Thyroid Association (ATA) released its inaugural recommendations for the management of thyroid cancer in children. We aim to evaluate whether there has been a change in hemithyroidectomy utilization for pediatric differentiated thyroid cancer, and the association between those changes and the release of the ATA guidelines. METHODS The National Cancer Database was queried and identified 4776 patients ≤18 years old with differentiated thyroid cancer. Causal impact time-series analysis and logistic analysis were utilized to assess factors associated with use of hemithyroidectomy. RESULTS Post-2015 hemithyroidectomy rate was greater than predicted based on preguideline trends (predicted: 8.4%, actual: 12.6%, p = 0.001). In logistic analysis of factors associated with hemithyroidectomy use, we find that Papillary histology, tumor size >1 cm, nodal examination, and positive nodes were associated with lower rate of hemithyroidectomy (OR: 0.23, 0.51, 0.62, and 0.18, respectively). CONCLUSION There has been a significant increase in hemithyroidectomy utilization for pediatric differentiated thyroid cancer.
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Affiliation(s)
- Eli Stein
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Mehul V Raval
- Surgical Outcomes Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.,Division of Pediatric Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital, Chicago, Illinois, USA
| | - Inbal Hazkani
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.,Division of Pediatric Otolaryngology - Head and Neck Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Audra Reiter
- Surgical Outcomes Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.,Division of Pediatric Surgery, Department of Surgery, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital, Chicago, Illinois, USA
| | - Jami L Josefson
- Division of Endocrinology, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Jill H Samis
- Division of Endocrinology, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Jeffrey C Rastatter
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.,Division of Pediatric Otolaryngology - Head and Neck Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
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Cao Z, Liu R, Wu M, Xu X, Liu Z. Risk factors for thyroid hormone replacement therapy after hemithyroidectomy and development of a predictive nomogram. Endocrine 2022; 76:85-94. [PMID: 35067900 PMCID: PMC8784231 DOI: 10.1007/s12020-021-02971-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/19/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE Hemithyroidectomy is a valid operation to retain functional contralateral thyroid lobe that is indicated for a variety of thyroid diseases. This study aimed at determination of the risk factors for thyroid hormone replacement following hemithyroidectomy and to develop a predictive nomogram. METHODS Data of patients treated by hemithyroidectomy for benign thyroid disease between January 2015 and January 2020 were retrospectively analyzed. Baseline characteristics, surgery-related variables, and preoperative and postoperative thyroid function of patients were collected from the case records and compared between patients with postoperative euthyroidism and patients with postoperative hypothyroidism. Postoperative euthyroidism patients without thyroid hormone replacement were compared to those who developed postoperative hypothyroidism with thyroid hormone replacement. The factors associated with thyroid hormone replacement were used to construct a binomial logistic-regression model and visualized as a predictive nomogram to evaluate the risk of thyroid hormone replacement following hemithyroidectomy. RESULTS Of the 378 patients (74% female) included in the study, 110 (29.1%) developed postoperative hypothyroidism. Preoperative serum thyroid-stimulating hormone (TSH) > 2.172 μIU/mL was identified as an independent risk factor for postoperative hypothyroidism (odds ratio [OR] = 8.02; 95% confidence interval [CI]: 4.87-13.20; P < 0.001). Of 110 patients with postoperative hypothyroidism, 56 (50.9%) received thyroid hormone replacement. Unilateral thyroid nodule and preoperative serum TSH > 2.172 μIU/mL were independent predictors of postoperative thyroid hormone replacement (P = 0.01, and P < 0.001, respectively). Temporary subclinical hypothyroidism occurred in 12 patients; all 12 reverted to euthyroid state without thyroid hormone replacement. The discriminative effect of the binomial regression model was proved reliable by the Hosmer-Lemeshow goodness-of-fit test (P = 0.503), and predictive ability of the nomogram was satisfactory with a C-index of 0.833. CONCLUSIONS Hypothyroidism is common after hemithyroidectomy, and almost half of the patients will need thyroid hormone replacement. Elevated preoperative serum TSH level and unilateral thyroid nodule were independent predictors of thyroid hormone replacement following hemithyroidectomy. The predictive nomogram could be a useful tool for clinical practice.
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Affiliation(s)
- Zhen Cao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, People's Republic of China
| | - Rui Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, People's Republic of China
| | - Mengwei Wu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, People's Republic of China
| | - Xiequn Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, People's Republic of China.
| | - Ziwen Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, People's Republic of China.
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Baran JA, Bauer AJ, Halada S, Mostoufi-Moab S, Isaza A, Robbins S, Franco AT, Adzick NS, Patel T, Kazahaya K. Clinical Course of Early Postoperative Hypothyroidism Following Thyroid Lobectomy in Pediatrics. Thyroid 2021; 31:1786-1793. [PMID: 34714171 PMCID: PMC8721496 DOI: 10.1089/thy.2021.0396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Introduction: Thyroid lobectomy reduces risks of surgical complications and need for levothyroxine (LT4). We aimed at identifying the clinical course and risk factors for postlobectomy hypothyroidism to optimize surgical counseling and management in pediatric patients undergoing lobectomy. Methods: Clinical and biochemical presentations pre- and postlobectomy were retrospectively reviewed for 110 patients who underwent thyroid lobectomy between 2008 and 2020 at the Children's Hospital of Philadelphia. Results: Approximately 28.2% of patients (31/110) developed postlobectomy hypothyroidism defined by an elevated thyrotropin (TSH) level, including 24.5% (27/110) with subclinical hypothyroidism (TSH >4.5 and <10.0 mIU/L) and 3.6% (4/110) with overt hypothyroidism (TSH >10.0 mIU/L). LT4 was initiated in 12.7% (14/110) of cases. Most patients (81.6%; 84/103) recovered euthyroidism within 12 months postlobectomy. When excluding patients with autonomous nodule(s), median preoperative TSH was 1.09 (interquartile range [IQR] = 0.70-1.77) mIU/L and 1.80 (IQR = 1.02-2.68) mIU/L in euthyroid and hypothyroid patients, respectively, with multivariate logistic regression confirming the association between an increased preoperative TSH and postlobectomy hypothyroidism (odds ratio = 1.8 [confidence interval 1.08-3.13], p = 0.024). Of the patients who underwent thyroid lobectomy and developed postoperative hypothyroidism (n = 31), 38.7% (12/31) had a preoperative diagnosis of an autonomously functioning thyroid nodule. Conclusions: Thyroid function should be evaluated postlobectomy to assess the need for LT4. LT4 should be considered if the TSH remains elevated, especially if an upward trend is observed or TSH is >10.0 mIU/L. Suppressed preoperative TSH associated with autonomous nodules is an independent risk factor for postlobectomy hypothyroidism.
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Affiliation(s)
- Julia A. Baran
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
| | - Andrew J. Bauer
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
| | - Stephen Halada
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
| | - Sogol Mostoufi-Moab
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
- Division of Pediatric Oncology; Philadelphia, Pennsylvania, USA
| | - Amber Isaza
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
| | - Stephanie Robbins
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
| | - Aime T. Franco
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
| | | | - Tasleema Patel
- Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA
| | - Ken Kazahaya
- Division of Pediatric Otolaryngology; The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Otorhinolaryngology–Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Address correspondence to: Ken Kazahaya, MD, MBA, FAAP, FACS, Division of Pediatric Otolaryngology, The Children's Hospital of Philadelphia, 3401 Civic Center Boulevard, 1 Wood Center/ENT, Philadelphia, PA 19104, USA
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11
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Adhami M, Bhatt CR, Grodski S, Serpell J, Lee JC. Less extensive surgery for low-risk papillary thyroid cancers post 2015 American Thyroid Association guidelines in an Australian tertiary centre. Eur J Surg Oncol 2021; 47:2781-2787. [PMID: 34364721 DOI: 10.1016/j.ejso.2021.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/30/2021] [Accepted: 06/14/2021] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION The 2015 American Thyroid Association guidelines (ATA15) consider hemithyroidectomy (HT) a viable treatment option for low-risk papillary thyroid cancers (PTCs) between 1 and 4 cm. We aimed to examine the impact of ATA15 in a high-volume Australian endocrine surgery unit. METHODS A retrospective study of all patients undergoing thyroidectomy from January 2010 to December 2019. INCLUSION CRITERIA PTC histopathology, Bethesda V-VI, size 1-4 cm, and absence of clinical evidence of lymph node or distant metastases pre-operatively. Primary outcome was rate of HT before and after ATA15. RESULTS Of 5408 thyroidectomy patients, 339 (6.3%) met the inclusion criteria - 186 (54.9%) pre-ATA15 (2010-2015) and 153 (45.1%) post-ATA15 (2016-2019). The patient groups were similar; there were no significant differences between groups in age, sex, tumour size, proportion with Bethesda VI cytology, compressive symptoms, or thyrotoxicosis. Post-ATA15, there was a significant increase in HT rate from 5.4% to 19.6% (P = 0.0001). However, there was no corresponding increase in completion thyroidectomy (CT) rate (50.0% versus 27.6%, P = 0.2). The proportion managed with prophylactic central neck dissection (pCND) fell from 80.5% to 10.8% (P < 0.0001). Pre-ATA15, the only factor significantly associated with HT was Bethesda V. In contrast, post-ATA15, HT was more likely in patients with younger age, smaller tumours, and Bethesda V. CONCLUSION After the release of 2015 ATA guidelines, we observed a significant increase in HT rate and a significant decrease in pCND rate for low-risk PTCs in our specialised thyroid cancer unit. This reflects a growing clinician uptake of a more conservative approach as recommended by ATA15.
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Affiliation(s)
- Mohammadmehdi Adhami
- Department of General Surgery, Monash University Endocrine Surgery Unit, The Alfred Hospital, Melbourne, Australia
| | - Chhavi Raj Bhatt
- Department of General Surgery, Monash University Endocrine Surgery Unit, The Alfred Hospital, Melbourne, Australia
| | - Simon Grodski
- Department of General Surgery, Monash University Endocrine Surgery Unit, The Alfred Hospital, Melbourne, Australia; Department of Surgery, Monash University, Melbourne, Australia; Department of Surgery, Monash Health, Melbourne, Australia
| | - Jonathan Serpell
- Department of General Surgery, Monash University Endocrine Surgery Unit, The Alfred Hospital, Melbourne, Australia; Department of Surgery, Monash University, Melbourne, Australia
| | - James C Lee
- Department of General Surgery, Monash University Endocrine Surgery Unit, The Alfred Hospital, Melbourne, Australia; Department of Surgery, Monash University, Melbourne, Australia; Department of Surgery, Monash Health, Melbourne, Australia.
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12
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Choi SH, Chang JS, Byun HK, Son NH, Hong CS, Hong N, Park Ms YI, Kim J, Kim JS, Kim YB. Risk of Hypothyroidism in Women After Radiation Therapy for Breast Cancer. Int J Radiat Oncol Biol Phys 2021; 110:462-472. [PMID: 33412261 DOI: 10.1016/j.ijrobp.2020.12.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/19/2020] [Accepted: 12/28/2020] [Indexed: 01/17/2023]
Abstract
PURPOSE To study the hypothyroidism risk after adjuvant radiation therapy (RT) and the association of different RT targets with hypothyroidism risk. METHODS We studied 4073 women treated with adjuvant RT for breast cancer from 2007 to 2016. The primary endpoint was hypothyroidism development after RT. Patients were divided and analyzed into 3 groups: whole breast (WB)-alone (n = 2468), regional node irradiation (RNI)-Lv.4 (n = 215; cranial border at the subclavian artery, according to the European Society for Radiotherapy and Oncology consensus guideline), and RNI-supraclavicular lymph node (SCL) (n = 1390; cranial border at the cricoid cartilage). In general, RNI-Lv.4 was used in the patients with high-risk pN0 and pN1 breast cancer. In auxiliary analysis, the mean thyroid dose was estimated in each group (total n = 600, 200 from each group). All the doses were converted to the equivalent dose in 2 Gy fractions (EQD2) with α/β ratios of 3. RESULTS The median follow-up duration was 84 months (WB-alone, 84 months; RNI-Lv.4, 44 months; RNI-SCL, 91 months). The 3-year hypothyroidism incidence rate differed significantly between the RNI-SCL and WB-alone groups (2.2% vs 0.8%; Bonferroni corrected P [Pc] < .001) but not between the RNI-Lv.4 and WB-alone groups (0.9% vs 0.8%; Pc > .05). The Cox model revealed an adjusted hazard ratio of 2.25 (95% CI, 1.49-3.38) for RNI-SCL vs WB-alone, 1.69 (95% CI, 1.12-2.56) for adjuvant systemic therapies, and 2.07 (95% CI, 1.07-3.99) for age <60 years. In the subgroup analysis, the hypothyroidism risk became more prominent in patients aged <60 years. The mean exposure doses to the thyroid were 0.23 versus 1.93 versus 7.89 Gy (EQD2) for the WB-alone versus RNI-Lv.4 versus RNI-SCL groups (P < .001). No statistically different locoregional recurrence rates were seen between groups (5-year rate: <3%). CONCLUSIONS The risk of hypothyroidism increases after RNI-SCL for breast cancer but not after RNI-Lv 4. These data support routine contouring of the thyroid in the RNI setting, and future studies are required to develop optimal dose-volume constraints.
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Affiliation(s)
- Seo Hee Choi
- Department of Radiation Oncology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Jee Suk Chang
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea.
| | - Hwa Kyung Byun
- Data Science Team, Center for Digital Health, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Nak-Hoon Son
- Data Science Team, Center for Digital Health, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Chae-Seon Hong
- Department of Radiation Oncology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Namki Hong
- Department of Internal Medicine, Endocrine Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Ye-In Park Ms
- Department of Radiation Oncology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Jihun Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Sung Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea
| | - Yong Bae Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea
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13
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Risk factors for hypothyroidism and thyroid hormone replacement after hemithyroidectomy in papillary thyroid carcinoma. Langenbecks Arch Surg 2021; 406:1223-1231. [PMID: 33970335 DOI: 10.1007/s00423-021-02189-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 05/04/2021] [Indexed: 12/19/2022]
Abstract
PURPOSE Thyroid lobectomy is now preferred over total thyroidectomy to preserve thyroid function and reduce complications in patients with low-risk papillary thyroid carcinoma (PTC). One inevitable consequence of thyroidectomy includes hypothyroidism. This study aimed to evaluate the risk factors for hypothyroidism and thyroid hormone replacement after hemithyroidectomy in patients with PTC. METHODS We retrospectively studied 353 patients with PTC who underwent hemithyroidectomy with or without central neck dissection from January 2012 to January 2019. We excluded patients who had hypo- or hyperthyroidism preoperatively and those who underwent total or subtotal thyroidectomy. We analyzed various risk factors related to postoperative hypothyroidism and thyroid hormone supplementation. RESULTS Of the patients, 54.7% showed hypothyroidism after hemithyroidectomy (n=193 with n=157, subclinical hypothyroidism; n=36, overt hypothyroidism). Ninety-one percent of postoperative hypothyroidism cases developed within 7 months postoperatively. Eventually, 43.1% (n=152) of patients received levothyroxine after hemithyroidectomy. Preoperative high thyroid-stimulating hormone (TSH) level and low free thyroxine (fT4) level were significantly associated with postoperative hypothyroidism and the need for thyroid hormone supplementation postoperatively. CONCLUSION Preoperative TSH and fT4 levels are predictive risk factors of hypothyroidism and need for supplementation of levothyroxine after hemithyroidectomy in patients with PTC. Finally, approximately 43% of patients need levothyroxine supplementation after hemithyroidectomy, and individual preoperative counseling is necessary for these patients.
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14
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Meyer C, Anderson D, Dong Z, Riddick JB, Elrod M, Ayala M. Prediction of Thyroid Hormone Replacement Following Thyroid Lobectomy: A Long-term Retrospective Study. OTO Open 2021; 5:2473974X21992001. [PMID: 33644629 PMCID: PMC7890735 DOI: 10.1177/2473974x21992001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/04/2021] [Indexed: 11/16/2022] Open
Abstract
Objective Following thyroid lobectomy, patients are at risk for hypothyroidism. This study sought to determine the incidence of postlobectomy thyroid hormone replacement as well as predictive risk factors to better counsel patients. Study Design Retrospective cohort study. Setting Patients aged 18 to 75 years treated in a single academic institution who underwent thyroid lobectomy from October 2006 to September 2017. Methods Patients were followed for an average of 73 months. Demographic data, body mass index, size of removed and remnant lobe, preoperative thyroid-stimulating hormone (TSH) level, final thyroid pathology, and presence of thyroiditis were collected and analyzed. Risk factors were evaluated with chi-square analyses, t tests, logistic regression, and Kaplan-Meier analysis. Results Of the 478 patients reviewed, 369 were included in the analysis, 30% of whom eventually required thyroid hormone replacement. More than 39% started therapy >12 months postoperatively, with 90% treated within 36 months. Patient age ≥50 years and preoperative TSH ≥2.5 mIU/L were associated with odds ratios of 2.034 and 3.827, respectively, for thyroid hormone replacement. Malignancy on final pathology demonstrated an odds ratio of 7.76 for hormone replacement. Sex, body mass index, volume of resected and remaining lobes, and weight of resected lobe were not significant predictors. Conclusion Nearly a third of patients may ultimately require thyroid hormone replacement. Age at the time of surgery, preoperative TSH, and final pathology are strong, clinically relevant predictors of the need for future thyroid hormone replacement. After lobectomy, patients should have long-term thyroid function follow-up to monitor for delayed hypothyroidism.
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Affiliation(s)
- Charles Meyer
- Department of Otolaryngology-Head and Neck Surgery, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
| | - Danielle Anderson
- Department of Otolaryngology-Head and Neck Surgery, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
| | - Zhiqiao Dong
- Department of Otolaryngology-Head and Neck Surgery, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
| | - Jeanelle Braxton Riddick
- Department of Otolaryngology-Head and Neck Surgery, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
| | - Marilisa Elrod
- Department of Pediatrics, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
| | - Marco Ayala
- Department of Otolaryngology-Head and Neck Surgery, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
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15
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Leitha T, Schartel M, Hurtl I, Bednar R, König F, Mayrhofer K, Pietschmann F. Dosimetry-guided radioiodine therapy of hyperthyroidism: long-term experience and implications for guidelines. Nucl Med Commun 2021; 42:150-159. [PMID: 33165252 DOI: 10.1097/mnm.0000000000001315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Long-term follow-up after radioactive iodine therapy (RIT) for Graves' disease and toxic thyroid autonomy is incompletely addressed by current guidelines. We retrospectively analyzed the clinical course of 1233 out of 1728 consecutive Graves' disease (n = 536) and thyroid autonomy (n = 1192) patients after dosimetry-guided RIT to optimize follow-up. METHODS Patients were referred between 1990 and 2018; follow-up was monitored according to available electronic registers with medical reports, including autopsies from 9 hospitals and 10 residential care homes. RESULTS In total, 495/1728 cases were censored because of incomplete 6-month follow-up data. The conversion rates to hypothyroidism in Graves' disease and different forms of thyroid autonomy can be deconvoluted into two follow-up periods: first year after RIT and afterward. The conversion rate in Graves' disease was significantly higher than that in all thyroid autonomy subgroups during the first year but almost identical afterwards. Thyroxine substitution started between 10 and 7900 days after RIT at thyroid stimulating hormone between 0.11 and 177 µU/ml. CONCLUSIONS We advise earlier (2-3 weeks) first follow-up checks after RIT in all Graves' disease patients and thyroid autonomy under antithyroid drugs (ATD) and re-checks every 2-4 weeks until conversion to hypothyroidism during the first year. The first check in thyroid autonomy without ATD should be after 3-4 weeks with re-checks every 4-6 weeks. After 1 year, both groups can be re-checked every 4-6 months over the next 5 years. The success rate of RIT in thyroid autonomyincreases with age but the history of RIT is rapidly lost during follow-up.
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Affiliation(s)
- Thomas Leitha
- Department of Nuclear Medicine, Danube Hospital, Vienna, Austria
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16
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Cho MJ, Yu HW, Kim W, Kim YK, Choi SI, Kim SJ, Chai YJ, Lee D, Park SJ, Choi JY, Lee KE. Comparison of the Incidence of Postoperative Hypothyroidism in Patients Undergoing Conventional Thyroid Lobectomy and Pyramid- and Isthmus-Preserving Lobectomy. Int J Endocrinol 2021; 2021:8162307. [PMID: 34733327 PMCID: PMC8560291 DOI: 10.1155/2021/8162307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/24/2021] [Accepted: 10/04/2021] [Indexed: 11/17/2022] Open
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.
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Affiliation(s)
- Min Jeong Cho
- Department of Surgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Hyeong Won Yu
- Department of Surgery, Seoul National University Bundang Hospital and College of Medicine, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Woochul Kim
- Department of Surgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Yeo Koon Kim
- Department of Radiology, Seoul National University Bundang Hospital and College of Medicine, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Sang Il Choi
- Department of Radiology, Seoul National University Bundang Hospital and College of Medicine, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Su-jin Kim
- Department of Surgery, Seoul National University Hospital and College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Young Jun Chai
- Department of Surgery, Seoul National University Boramae Medical Center and College of Medicine, 20 Boramae-ro 5-gil, Dongjak-gu, Seoul, Republic of Korea
| | - Doohee Lee
- Department of Research and Development, MEDICALIP Co. Ltd., Seoul, Republic of Korea
| | - Sang Joon Park
- Department of Radiology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - June Young Choi
- Department of Surgery, Seoul National University Bundang Hospital and College of Medicine, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Kyu Eun Lee
- Department of Surgery, Seoul National University Hospital and College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
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17
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Li Z, Qiu Y, Fei Y, Xing Z, Zhu J, Su A. Prevalence of and risk factors for hypothyroidism after hemithyroidectomy: a systematic review and meta-analysis. Endocrine 2020; 70:243-255. [PMID: 32638212 DOI: 10.1007/s12020-020-02410-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/27/2020] [Indexed: 12/14/2022]
Abstract
PURPOSE This systematic review and meta-analysis evaluated the prevalence of and risk factors for hypothyroidism following hemithyroidectomy as new evidence obtained in recent years warranted an update of previous meta-analyses. METHODS The PubMed, Embase, and Cochrane Library databases were searched through November 1, 2019, for articles examining the hypothyroidism prevalence and risk factors after lobectomy. The prevalence rate, risk ratio (RR), weighted mean difference (WMD) and standardized mean difference (SMD) were assessed by conducting a meta-analysis of proportions, binary variables, and continuous variables, respectively, using random-effects models. RESULTS Fifty-one studies showed a pooled risk of 29.9% (95% confidence interval (CI), 24.6-35.2%) for hypothyroidism following hemithyroidectomy. Risk factors for the development of postoperative hypothyroidism included the female sex (RR, 1.169; 95% CI, 1.040-1.314; P = 0.009), a higher preoperative thyrotropin (TSH) level (RR, 2.955; 95% CI, 2.399-3.640; P = 0.000), a lower preoperative FT4 level (SMD, -0.818; 95% CI, -1.623--0.013; P = 0.047), concomitant lymphocyte infiltration (RR, 1.558; 95% CI, 1.203-2.018; P = 0.001), Hashimoto's thyroiditis (HT) (RR, 1.480; 95% CI, 1.192-1.838; P = 0.000), a lighter weight of the remaining gland (WMD, -2.740; 95% CI, -3.708--1.772; P = 0.000), and a right side lobectomy (RR, 1.404; 95% CI, 1.075-1.835; P = 0.013). CONCLUSIONS Hypothyroidism is a significant complication after lobectomy, and appropriate and personalized surgical strategies should be designed after a careful preoperative assessment based on the estimated risk of hypothyroidism and risk factors.
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Affiliation(s)
- Zhe Li
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yuxuan Qiu
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yuan Fei
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Zhichao Xing
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Jingqiang Zhu
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, PR China
| | - Anping Su
- Department of Thyroid & Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu, PR China.
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18
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Wilson M, Patel A, Goldner W, Baker J, Sayed Z, Fingeret AL. Postoperative thyroid hormone supplementation rates following thyroid lobectomy. Am J Surg 2020; 221:804-808. [PMID: 32682499 DOI: 10.1016/j.amjsurg.2020.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 03/30/2019] [Accepted: 07/03/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Thyroid lobectomy is performed for symptomatic benign nodules, indeterminate nodules, or low-risk well differentiated thyroid cancer. We aimed to determine factors associated with thyroid stimulating hormone over goal (TH) following lobectomy. METHODS We performed a retrospective single-institution cohort study of patients undergoing thyroid lobectomy from January 2016 to December 2017. TH was defined as need for thyroid hormone in accordance with guidelines. Univariate and multivariate logistic regression analysis was performed. RESULTS One hundred patients were included and 47% developed. TH: 73% of those with cancer, 38% with benign pathology (p = 0.002). Patients with TH were more likely to have thyroiditis 26% versus 3.8% (p = 0.002); higher preoperative TSH: mean 1.88mIU/L (SD 1.17) versus 1.16mIU/L (SD 0.77) (p = 0.0002), and smaller remnant thyroid lobe adjusted for body surface area 2.99ml/m2 versus 3.72ml/m2 (p = 0.003). CONCLUSIONS After thyroid lobectomy, TH is associated with preoperative TSH level, thyroiditis, remnant thyroid volume, and malignancy. The majority of patients with final pathology of carcinoma will require thyroid hormone supplementation to achieve TSH goal.
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Affiliation(s)
| | - Anery Patel
- Department of Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, USA
| | - Whitney Goldner
- Department of Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, USA
| | - John Baker
- Department of Pathology and Microbiology, University of Nebraska Medical Center, USA
| | - Zafar Sayed
- Department of Otolaryngology, Division of Head and Neck Oncology, University of Nebraska Medical Center, USA
| | - Abbey L Fingeret
- Department of Surgery, Division of Surgical Oncology, University of Nebraska Medical Center, USA.
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19
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Wilson M, Patel A, Goldner W, Baker J, Sayed Z, Fingeret AL. Postoperative thyroid hormone supplementation rates following thyroid lobectomy. Am J Surg 2020; 220:1169-1173. [PMID: 32684294 DOI: 10.1016/j.amjsurg.2020.06.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/24/2020] [Accepted: 06/25/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND Thyroid lobectomy is performed for symptomatic benign nodules, indeterminate nodules, or low-risk well-differentiated thyroid cancer. We aimed to determine factors associated with need for thyroid hormone supplementation following thyroid lobectomy. METHODS We performed a retrospective single-institution cohort study of patients undergoing thyroid lobectomy from January 2016 to December 2017. Thyroid hormone supplementation was assessed postoperatively based on guidelines for thyroid stimulating hormone (TSH) level goal for benign (0.5-4.5mIU/L) or malignant (<2mIU/L) final pathology. Univariate and multivariate logistic regression analysis was performed. RESULTS One hundred patients were included and overall 47% required thyroid hormone supplementation after thyroid lobectomy: 73% of those with cancer, 38% with benign pathology (p = 0.002). Patients requiring thyroid hormone supplementation were more likely to have thyroiditis 26% versus 3.8% of those who remained euthyroid (p = 0.002); have a higher preoperative TSH: mean 1.88mIU/L (SD 1.17) versus 1.16mIU/L (SD 0.77) (p = 0.0002), and have a smaller remnant thyroid lobe adjusted for body surface area 2.99ml/m2 versus 3.72ml/m2 (p = 0.003). CONCLUSIONS After thyroid lobectomy, the need for thyroid hormone supplementation is associated with higher preoperative TSH level, thyroiditis, remnant thyroid volume, and malignancy on final pathology. The majority of patients with final pathology of carcinoma will require thyroid hormone supplementation to achieve TSH goal. For patients with benign pathology after thyroid lobectomy the majority will not require thyroid hormone supplementation to achieve TSH goal.
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Affiliation(s)
| | - Anery Patel
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, University of Nebraska Medical Center, USA
| | - Whitney Goldner
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, University of Nebraska Medical Center, USA
| | - John Baker
- Department of Pathology and Microbiology, University of Nebraska Medical Center, USA
| | - Zafar Sayed
- Department of Otolaryngology, Division of Head and Neck Oncology, University of Nebraska Medical Center, USA
| | - Abbey L Fingeret
- Department of Surgery, Division of Surgical Oncology, University of Nebraska Medical Center, USA.
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Dou Y, Chen Y, Hu D, Su X. The Recovery of Thyroid Function in Low-Risk Papillary Thyroid Cancer After Lobectomy: A 3-Year Follow-Up Study. Front Endocrinol (Lausanne) 2020; 11:619841. [PMID: 33633689 PMCID: PMC7899978 DOI: 10.3389/fendo.2020.619841] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/18/2020] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Management strategies after lobectomy for low-risk papillary thyroid carcinoma (PTC) are controversial. This study aimed to identify the proportion of patients among low-risk PTC patients who do not require hormone replacement therapy and to evaluate the risk factors for postoperative hypothyroidism after lobectomy. PATIENTS AND METHODS The records of 190 PTC patients who underwent thyroid lobectomy from January 2017 to December 2018 were retrospectively reviewed. Clinicopathological characteristics and follow-up data were collected. Univariate and multivariate analyses were performed to identify the risk factors associated with postoperative hypothyroidism and the recovery of thyroid function. RESULTS In summary, 74.21% of patients (141/190) had normal thyroid function without levothyroxine supplementation, while 40.53% (77/190) developed temporary or permanent hypothyroidism. Multivariate analysis indicated that higher preoperative thyroid-stimulating hormone (TSH) levels (>2.62 mIU/L), Hashimoto's thyroiditis (HT), and right lobectomy were associated with hypothyroidism (all P<0.05). The Area Under Curve (AUC) by logistic analysis was 0.829. Twenty-eight (28/77, 36.4%) patients recovered to the euthyroid state in the first year after surgery, and this recovery was significantly associated with preoperative TSH level. Forty-nine (49/77, 63.6%) patients developed persistent hypothyroidism. The thyroid function of most patients (11/28, 39.3%) recovered in the third month after surgery. CONCLUSION Patients with a lower level of preoperative TSH, with left lobectomy and without Hashimoto's thyroiditis had a higher chance of normal thyroid function within the first year after lobectomy. The recovery of thyroid function was associated with the level of preoperative TSH.
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21
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Kang JG, Kim YA, Choi JE, Lee SJ, Kang SH. Usefulness of 1-year of thyroid stimulating hormone suppression on additional levothyroxine in patients who underwent hemithyroidectomy with papillary thyroid microcarcinoma. Gland Surg 2019; 8:636-643. [PMID: 32042670 DOI: 10.21037/gs.2019.10.12] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background The purpose of this study was to identify usefulness of 1-year of thyroid stimulating hormone (TSH) suppression, on additional levothyroxine in patients who underwent hemithyroidectomy with papillary thyroid microcarcinoma (PTMC). Methods Two-hundred consecutive patients who had received hemithyroidectomy February 2011 to March 2013, were enrolled, retrospectively. Group 1, only, was taking levothyroxine for a year, postoperatively. We evaluated postoperative hypothyroidism through serum TSH level, measured periodically. Results Postoperative TSH >10 was significantly different, at 13% and 25%, between two groups (P=0.036). Twenty patients in group 1, and 32 patients in group 2, received additional levothyroxine. Multivariate analysis showed that 1-year suppression, clinical thyroiditis, and preoperative TSH >2, were significantly associated with additional levothyroxine (OR 2.17, P=0.025 and OR 2.00, P=0.046 and OR 2.64, P=0.006). Too, 1-year TSH suppression, preoperative TSH >2, were also significantly associated with postoperative TSH >10 (OR 2.55, P=0.022 and OR 2.22, P=0.048). Conclusions We suggest 1-year TSH suppression after hemithyroidectomy, for PTMC in patients with preoperative TSH >2 mU/L and clinical thyroiditis, to reduce additional levothyroxine.
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Affiliation(s)
- Jin Gu Kang
- Department of Surgery, Yeungnam University College of Medicine, Daegu, Korea
| | - Young Ah Kim
- Department of Surgery, Yeungnam University College of Medicine, Daegu, Korea
| | - Jung Eun Choi
- Department of Surgery, Yeungnam University College of Medicine, Daegu, Korea
| | - Soo Jung Lee
- Department of Surgery, Yeungnam University College of Medicine, Daegu, Korea
| | - Su Hwan Kang
- Department of Surgery, Yeungnam University College of Medicine, Daegu, Korea
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22
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Ullmann TM, Gray KD, Stefanova D, Limberg J, Buicko JL, Finnerty B, Zarnegar R, Fahey TJ, Beninato T. The 2015 American Thyroid Association guidelines are associated with an increasing rate of hemithyroidectomy for thyroid cancer. Surgery 2019; 166:349-355. [PMID: 31056200 DOI: 10.1016/j.surg.2019.03.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/27/2019] [Accepted: 03/03/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND In an attempt to prevent overly aggressive treatment of low-risk thyroid cancers, the American Thyroid Association changed guideline recommendations in late 2015 to state that either hemithyroidectomy or total thyroidectomy are acceptable operations for these patients. We hypothesized that surgeons would increasingly perform hemithyroidectomy after the release of these guidelines. METHODS The database of the National Surgery Quality Improvement Program was queried to identify all patients with thyroid cancer who were undergoing thyroidectomy between 2009 and 2017. Patients treated before the release of the 2015 American Thyroid Association guidelines were compared with those treated afterward. Temporal trends in operative rates were assessed quarterly using interrupted time series analyses. RESULTS A total of 35,291 patients were included in the study. Of those, 26,882 (76.2%) were female and 25,193 (71.3%) were white. After the release of the American Thyroid Association guidelines, there was an increase in hemithyroidectomy rate for patients with cancer from 17.3% to 22.0% (P < .001). Interrupted time series analysis controlling for patient factors demonstrated that quarterly growth in the hemithyroidectomy rate accelerated almost 10-fold (P < .001) after publication of the revised guidelines. Of note, there was no corresponding increase in the completion thyroidectomy rate (8.3% versus 7.9%, respectively, P = .213). Patients treated with hemithyroidectomy were more likely to be managed as outpatients (70.8% versus 57.1%, P < .001), had fewer surgical site infections (0.3% versus 0.5%, P = .050), and had fewer unplanned reintubations (0.2% versus 0.4%, P = .005). CONCLUSION In hospitals participating in the National Surgery Quality Improvement Program, the hemithyroidectomy rate increased significantly after the release of the 2015 American Thyroid Association guidelines. Surgeons at hospitals that participate in the National Surgery Quality Improvement Program may be changing practice patterns in response to these guidelines.
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Affiliation(s)
- Timothy M Ullmann
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Katherine D Gray
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Dessislava Stefanova
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Jessica Limberg
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Jessica L Buicko
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Brendan Finnerty
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Rasa Zarnegar
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Thomas J Fahey
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY
| | - Toni Beninato
- Department of Surgery, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY.
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Ng P, Ho C, Tan WB, Ngiam KY, Lim CM, Thomas Loh KS, Nga ME, Parameswaran R. Predictors of thyroxine replacement following hemithyroidectomy in a south east Asian cohort. Head Neck 2018; 41:1463-1467. [PMID: 30597664 DOI: 10.1002/hed.25592] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Thyroxine replacement following a hemithyroidectomy is not commonly discussed during consent for the procedure as the risk of hypothyroidism is perceived to be low. METHODS Retrospective review of 901 patients who underwent hemithyroidectomy at a tertiary referral institution during the period January 2000 to December 2015. The main outcome studied was the overall incidence of hypothyroidism and the associated risk factors. RESULTS Hypothyroidism developed in 123 (13%) patients and 94 patients (10%) required hormone supplementation over a mean follow up of 21 months (range 1-168 months). Preoperative TSH of more than 2.5 was seen in 38 of 123 (31%) of patients. Presence of diffuse thyroiditis was the only independent risk factor on multivariate analysis (P = 0.002) found to be associated with the development of hypothyroidism. CONCLUSION After thyroid lobectomy, approximately one in 10 patients requiring thyroid hormone treatment for hypothyroidism. Presence of diffuse thyroiditis is a significant risk factor for hypothyroidism.
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Affiliation(s)
- Peng Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Cheryl Ho
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Wee Boon Tan
- Department of Endocrine Surgery, National University Hospital, Singapore
| | - Kee Yuan Ngiam
- Department of Endocrine Surgery, National University Hospital, Singapore
| | - Chwee Ming Lim
- Department of Otolaryngology, National University Hospital, Singapore
| | | | - Min En Nga
- Department of Pathology, National University Hospital, Singapore
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Lang BHH, Wong CKH, Ma EPM, Woo YC, Chiu KWH. A propensity-matched analysis of clinical outcomes between open thyroid lobectomy and high-intensity focused ultrasound (HIFU) ablation of benign thyroid nodules. Surgery 2018; 165:85-91. [PMID: 30392858 DOI: 10.1016/j.surg.2018.05.080] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 04/16/2018] [Accepted: 05/18/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND High-intensity focused ultrasound is a promising, nonoperative treatment for benign thyroid nodules. Our study aimed to compare treatment outcomes of single-session high-intensity focused ultrasound ablation with open lobectomy after propensity score matching. METHODS After propensity matching, we compared treatment-related morbidity, treatment time, duration of hospitalization, improvement in symptom score, cost, and acoustic parameters of consecutive patients who underwent high-intensity focused ultrasound ablation or lobectomy. All eligible patients completed the computerized, multidimensional voice program and Voice Handicap Index questionnaire before, and 3 and 6 months after treatment. RESULTS The matched cohort comprised 154 patients (77 in each group). Although treatment-related morbidity was comparable between the two groups (P = .368), treatment time (P <.001), duration of hospitalization (P <.001), and medical cost (P <.001) were less in the high-intensity focused ultrasound group. After high-intensity focused ultrasound ablation, the 6-month nodule shrinkage (mean ± SD) was 64% ± 26% and the 6-month symptom improvement score was comparable with lobectomy (P = .283). At 6 months, none of the acoustic parameters were changed from the baseline in both groups (P >.05), and the Voice Handicap Index questionnaire did not differ between the two groups (P >.05). CONCLUSION Despite having similar treatment-related morbidity and voice outcomes, there were possibly some advantages with high-intensity focused ultrasound during open lobectomy, including the avoidance of a neck scar, shorter treatment time and duration of hospitalization, and lower medical cost.
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Affiliation(s)
- Brian H H Lang
- Department of Surgery, The University of Hong Kong, Hong Kong SAR, China.
| | - Carlos K H Wong
- Department of Family Medicine and Primary Care, The University of Hong Kong, Hong Kong SAR, China
| | - Estella P M Ma
- Division of Speech and Hearing Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Yu-Cho Woo
- Department of Medicine, The University of Hong Kong, Hong Kong SAR, China
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25
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Lang BHH, Woo YC, Chiu KWH. Two-year efficacy of single-session high-intensity focused ultrasound (HIFU) ablation of benign thyroid nodules. Eur Radiol 2018; 29:93-101. [PMID: 29922925 DOI: 10.1007/s00330-018-5579-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/24/2018] [Accepted: 05/31/2018] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Assessing the efficacy of single high-intensity focused ultrasound (HIFU) ablation in benign thyroid nodules beyond 12 months. METHODS One hundred and eight patients underwent single HIFU treatment. Extent of nodule shrinkage [by volume reduction ratio (VRR)] and obstructive symptom score [by 0-10 visual analogue scale (VAS)] were evaluated for 24 months after treatment. VRR (%) was calculated based on the formula: [baseline volume - volume at visit] / [baseline volume] × 100. Binary logistic regression was performed to evaluate factors associated with 24-month treatment success (VRR ≥ 50%). RESULTS After treatment, the mean (± SD) VRR at 3, 6, 12 ,18 and 24 months were 51.32 ± 20.71%, 62.99 ± 22.05%, 68.66 ± 18.48%, 69.76 ± 17.88% and 70.41 ± 17.39%, respectively, while the median (IQR) VAS at baseline, 6, 12 and 24 months was gradually lowered from 4.0 (2.0), 2.0 (1.0), 2.0 (1.0) to 1.0 (2.0), respectively. Sixty-three (58.3%) nodules had a further volume reduction (i.e. > 4.5%) from 12 to 24 months, while 22 (20.4%) nodules had a volume increase of > 4.5% from 12 to 24 months. Small pre-ablation nodule volume was a significant determinant for treatment success at 24 months (OR=1.045, 95% CI=1.021-1.092, p = 0.038). CONCLUSIONS A majority of nodules had further volume reduction beyond 12 months after single HIFU ablation, but since one-fifth of nodules had a notable volume increase beyond 12 months, a longer period of surveillance would be necessary. Small pre-ablation nodule volume was a significant factor determining 24-month treatment success. KEY POINTS • Small but significant nodule shrinkage continues beyond 12 months after single treatment. • Obstructive symptom continues to improve beyond 12 months after single treatment • Smaller-sized nodules have a greater chance of treatment success at 24 months.
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Affiliation(s)
- Brian H H Lang
- Department of Surgery, The University of Hong Kong, Hong Kong, SAR, China. .,Department of Surgery, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, SAR, China.
| | - Yu-Cho Woo
- Department of Medicine, The University of Hong Kong, Hong Kong, SAR, China
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Zhi X, Zhao N, Liu Y, Liu JB, Teng C, Qian L. Microwave ablation compared to thyroidectomy to treat benign thyroid nodules. Int J Hyperthermia 2018; 34:644-652. [PMID: 29577796 DOI: 10.1080/02656736.2018.1456677] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Xin Zhi
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ning Zhao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yujiang Liu
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University Hospitals, Philadelphia, PA, USA
| | - Changsheng Teng
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Linxue Qian
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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27
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Pinnix CC, Cella L, Andraos TY, Ayoub Z, Milgrom SA, Gunther J, Thosani S, Wogan C, Conson M, D'Avino V, Oki Y, Fanale M, Lee HJ, Neelapu S, Fayad L, Hagemeister F, Rodriguez MA, Nastoupil LJ, Nieto Y, Qiao W, Pacelli R, Dabaja B. Predictors of Hypothyroidism in Hodgkin Lymphoma Survivors After Intensity Modulated Versus 3-Dimensional Radiation Therapy. Int J Radiat Oncol Biol Phys 2018; 101:530-540. [PMID: 29681481 DOI: 10.1016/j.ijrobp.2018.03.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/21/2018] [Accepted: 03/06/2018] [Indexed: 12/12/2022]
Abstract
PURPOSE To identify predictors of hypothyroidism after chemoradiation therapy for Hodgkin lymphoma (HL) and to compare outcomes after intensity modulated radiation therapy (IMRT) with those after 3-dimensional (3D) conformal radiation therapy (CRT). METHODS AND MATERIALS Ninety patients who underwent involved-site IMRT in 2009 through 2014 were evaluated for treatment-induced hypothyroidism, defined as elevated thyroid-stimulating hormone or decreased free thyroxine levels (or both). Receiver operating characteristic curve analysis identified individuals at low versus high risk based on dosimetric variables. Dosimetric cutoff points were verified with an external data set of 50 patients who underwent 3D-CRT. RESULTS In the IMRT group, most patients (75 [83%]) had stage II HL, and the median prescribed dose was 30.6 Gy; in the 3D-CRT group, 32 patients (64%) had stage II HL, and the median prescribed dose was 32.0 Gy. No differences were found in the proportions of patients with bilateral (P = .982) or unilateral (P = .074) neck involvement between the 2 groups. Hypothyroidism rates were marginally higher in the IMRT group, with estimated 3-year rates of freedom from hypothyroidism of 56.1% in the 3D-CRT group and 40% in the IMRT group (P = .057). Univariate analysis showed that smaller thyroid volume and higher thyroid dose were associated with hypothyroidism in both groups (P < .05). In the IMRT group, the percentage of the thyroid gland volume receiving ≥25 Gy (V25) and the absolute volume of the thyroid gland spared from 25 Gy (VS25Gy) were the strongest predictors of hypothyroidism (P = .001 and P < .001, respectively). Cutoff points of 63.5% (V25) and 2.2 mL (VS25Gy) classified patients as high risk (80%-82%) or low risk (37%-44%) (P < .001). Use of a thyroid avoidance structure reduced the incidence of hypothyroidism (P < .05) in the IMRT group. CONCLUSIONS The percentage of the thyroid receiving 25 Gy and the volume of the thyroid spared from 25 Gy predicted the risk of hypothyroidism after either IMRT or 3D-CRT for HL. IMRT may confer a higher risk than 3D-CRT unless a treatment avoidance structure is used during planning.
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Affiliation(s)
- Chelsea C Pinnix
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
| | - Laura Cella
- Institute of Biostructures and Bioimaging, National Research Council (CNR), Naples, Italy
| | - Therese Y Andraos
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zeina Ayoub
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sarah A Milgrom
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jillian Gunther
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sonali Thosani
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Christine Wogan
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Manuel Conson
- Department of Advanced Biomedical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Vittoria D'Avino
- Institute of Biostructures and Bioimaging, National Research Council (CNR), Naples, Italy
| | - Yasuhiro Oki
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michelle Fanale
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hun J Lee
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sattva Neelapu
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Luis Fayad
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Frederick Hagemeister
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - M Alma Rodriguez
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Loretta J Nastoupil
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yago Nieto
- Department of Stem Cell Transplantation, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Wei Qiao
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Roberto Pacelli
- Department of Advanced Biomedical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Bouthaina Dabaja
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Lang BHH, Woo YC, Chiu KWH. High-intensity focused ablation (HIFU) of single benign thyroid nodule rarely alters underlying thyroid function. Int J Hyperthermia 2017; 33:875-881. [PMID: 28540804 DOI: 10.1080/02656736.2017.1318456] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND High intensity focused ultrasound (HIFU) is a promising ablation technique for benign thyroid nodules. However, its effect on underlying thyroid function remains unknown. We aimed to evaluate the 6 months changes in serum thyroid stimulating hormone (TSH) and free thyroxine (FT4) after HIFU treatment. METHODS Eighty-three consecutive patients who underwent single HIFU ablation for symptomatic benign thyroid nodule were analysed. Eligible patients had serum TSH and FT4 checked before treatment (baseline), 1 week, 3 and 6 months following HIFU treatment. Primary endpoints were hypothyroidism (FT4 < 12 pmol/L) and hyperthyroidism (FT4 > 23 pmol/L) in the 6 months following treatment. To express extent of nodule ablation relative to the total gland volume, an ablation volume ratio was calculated by [(Ablated nodule volume/total thyroid volume)/(total thyroid volume)] × 100. RESULTS Relative to baseline, 1-week serum TSH significantly dropped (from 1.16 to 0.76 mIU/L, p < 0.001) while 1-week serum FT4 significantly rose (from 16.0 to 17.8 pmol/L, p < 0.001). However, 3- and 6-months TSH and FT4 did not changed significantly from baseline (p > 0.05). No patients developed hyperthyroidism while one (1.4%) developed hypothyroidism (FT4 = 11 pmol/L) at 3 months and 6 months. Interestingly, this patient had a previous lobectomy and an ablation volume ratio of 64.00%. CONCLUSIONS Hypothyroidism following single HIFU ablation occurred rarely (1.4%) and resulted in little clinical relevance. Given that only one patient developed hypothyroidism following single HIFU ablation, it remains unclear how patients with different amount of parenchyma and relative extent of ablation may affect subsequent thyroid function.
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Affiliation(s)
- Brian H H Lang
- a Department of Surgery , The University of Hong Kong , Hong Kong SAR , PR China
| | - Yu-Cho Woo
- b Department of Medicine , The University of Hong Kong , Hong Kong SAR , PR China
| | - Keith Wan-Hang Chiu
- c Department of Radiology , The University of Hong Kong , Hong Kong SAR , PR China
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Kuo LE, Fraker DL, Kelz RR. Contralateral Lobe Volume Brings Us One Step Closer to the Prediction of Hypothyroidism Following Partial Thyroid Resection. Ann Surg Oncol 2017; 24:1454-1455. [PMID: 28349336 DOI: 10.1245/s10434-017-5784-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Indexed: 11/18/2022]
Affiliation(s)
- Lindsay E Kuo
- Department of Surgery, Center for Surgery and Health Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Douglas L Fraker
- Department of Surgery, Division of Endocrine and Oncologic Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Rachel R Kelz
- Department of Surgery, Division of Endocrine and Oncologic Surgery, Center for Surgery and Health Economics, University of Pennsylvania, Philadelphia, PA, USA.
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30
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Lang BHH, Wong CKH, Ma EPM. Single-session high intensity focussed ablation (HIFU) versus open cervical hemithyroidectomy for benign thyroid nodule: analysis on early efficacy, safety and voice quality. Int J Hyperthermia 2017; 33:868-874. [PMID: 28540785 DOI: 10.1080/02656736.2017.1305127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND High intensity focussed ultrasound (HIFU) is a promising non-surgical treatment for symptomatic benign thyroid nodule. We aimed to compare early efficacy, safety and voice quality between HIFU ablation and open thyroidectomy. METHODS Consecutive patients who underwent single-session HIFU ablation or a hemithyroidectomy for symptomatic benign thyroid nodule were included. The 6-month extent of nodule shrinkage, symptom improvement score, thyroid function, hospital stay and cost were compared between the two procedures. Safety was defined by absence of major complications like recurrent laryngeal nerve injury and skin burn. Voice quality was assessed by a computerised multi-dimensional voice programme and a Voice Handicap Index (VHI) questionnaire 1-month after treatment. RESULTS Altogether, 43 patients had HIFU and 103 patients had a hemithyroidectomy. In the HIFU group, the extent of nodule shrinkage at 6-month was 51.71 ± 16.04%. No patients in the HIFU group suffered skin burn or hypothyroidism. The HIFU group had a significantly shorter length of hospital stay (0.3 vs. 1.0 day, p < 0.001), lower incidence of subclinical hypothyroidism (1/43 vs. 21/103, p = 0.008), higher symptom improvement score (p = 0.009) and was less costly (USD 1923.1 vs. USD 5384.6). Relative to HIFU, pitch quality also worsen after surgery (p < 0.05). CONCLUSIONS Relative to surgery, single HIFU ablation appeared efficacious and safe. Apart from shorter hospital stay, less subclinical hypothyroidism, being scar-less, lower cost and more symptom improvement, HIFU patients were less affected by a pitch problem in the first month. This study provides a strong argument for HIFU ablation as a treatment for symptomatic benign thyroid nodule.
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Affiliation(s)
- Brian H H Lang
- a Department of Surgery , The University of Hong Kong , Hong Kong , Hong Kong, China
| | - Carlos K H Wong
- b Department of Family Medicine and Primary Care , The University of Hong Kong , Ap Lei Chau , Hong Kong, China
| | - Estella P M Ma
- c Division of Speech and Hearing Sciences , The University of Hong Kong , Hong Kong , Hong Kong, China
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