Publications by authors named "Jae Hoon Moon"

Background: The integration of wearable technology for heart rate monitoring offers potential advancements in managing hyperthyroidism by providing a feasible way to track thyroid function. Although digital health solutions are gaining traction in various chronic conditions, their cost-effectiveness in hyperthyroidism management requires deeper investigation.

Objective: This study aimed to evaluate the cost-effectiveness of a wearable or mobile-based thyroid function digital monitoring solution for hyperthyroidism management and to make a comparison with the existing standard approach within the South Korean health care context.

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Purpose: Diffuse sclerosing variant papillary thyroid carcinoma (DSV-PTC) is a rare and aggressive subtype of PTC. Preoperative diagnosis is challenging owing to the overlapping of imaging characteristics with those of other thyroid conditions. This study aimed to evaluate the accuracy of preoperative ultrasound (US) in predicting DSV-PTC and to identify significant diagnostic factors.

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Objective: To develop and evaluate a deep learning (DL)-assisted system for proptosis measurement using facial photographs in thyroid eye disease (TED).

Design: A retrospective cohort study.

Participants: This study included 1108 patients with TED from Severance Hospital (SH) and 171 from Seoul National University Bundang Hospital (SNUBH).

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Background: Active surveillance (AS) has emerged as a viable management strategy for low-risk papillary thyroid microcarcinoma (PTMC), following pioneering trials at Kuma Hospital and the Cancer Institute Hospital in Japan. Numerous prospective cohort studies have since validated AS as a management option for low-risk PTMC, leading to its inclusion in thyroid cancer guidelines across various countries. From 2016 to 2020, the Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro) enrolled 1,177 patients, providing comprehensive data on PTMC progression, sonographic predictors of progression, quality of life, surgical outcomes, and cost-effectiveness when comparing AS to immediate surgery.

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Objective: Active surveillance (AS) has emerged as a viable alternative to immediate surgery for low-risk thyroid cancer. However, several barriers still hinder its widespread adoption and implementation by physicians.

Methods: In 2024, an email survey was conducted among members of the Korea Thyroid Association to assess their perspectives on AS.

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Background: Wearable devices can now leverage the established correlation between thyroid function and heart rate to monitor thyroid function alongside exercise levels and heart rate. The objective was to assess the cost-effectiveness of introducing a wearable/mobile-based thyroid function digital monitoring solution for the management of hypothyroidism compared to the conventional management approach.

Methods: A decision-analytic Markov state-transition simulation model employed for using a simulated cohort of 10 000 40-year-old patients with hypothyroidism to estimate costs and health outcomes.

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Introduction: Technetium thyroid uptake (TcTU) measured by single-photon emission CT/CT (SPECT/CT) is an important diagnostic tool for the differential diagnosis of Graves' disease and destructive thyroiditis. Artificial intelligence (AI) may reduce CT-induced radiation exposure by substituting the role of CT in attenuation correction (AC) and thyroid segmentation, thus realising CT-free SPECT. This study aims to compare the diagnostic accuracy for the differential diagnosis of thyrotoxicosis between CT-free SPECT and SPECT/CT.

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Article Synopsis
  • A study involving 927 patients compared the quality of life (QoL) between those choosing AS and those undergoing lobectomy, finding the AS group had significantly better QoL during follow-up.
  • Overall, while patients who opted for AS initially reported higher QoL scores, both groups' scores became similar after one year, indicating that treatment choice may not have long-term QoL differences.
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We previously developed a machine learning (ML)-assisted system for predicting the clinical activity score (CAS) in thyroid-associated orbitopathy (TAO) using digital facial images taken by a digital single-lens reflex camera in a studio setting. In this study, we aimed to apply this system to smartphones and detect active TAO (CAS ≥3) using facial images captured by smartphone cameras. We evaluated the performance of our system on various smartphone models and compared it with the performance of ophthalmologists with varying clinical experience.

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Article Synopsis
  • - The article discusses active surveillance (AS) as an alternative to immediate surgery for managing low-risk papillary thyroid microcarcinoma, which has generally favorable outcomes and is often indolent.
  • - AS is recommended for tumors 1 cm or smaller without aggressive features, and patient eligibility is based on factors like tumor size, location, and personal medical history.
  • - Successful AS requires regular monitoring via ultrasound, effective communication about treatment decisions, and clear criteria for what constitutes disease progression.
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Previous studies have shown a correlation between resting heart rate (HR) measured by wearable devices and serum free thyroxine concentration in patients with thyroid dysfunction. We have developed a machine learning (ML)-assisted system that uses HR data collected from wearable devices to predict the occurrence of thyrotoxicosis in patients. HR monitoring data were collected using a wearable device for a period of 4 months in 175 patients with thyroid dysfunction.

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Background Active surveillance (AS) is an accepted strategy for patients with low-risk papillary thyroid microcarcinoma (PTMC). While previous studies have evaluated the prognostic value of US features, results have been inconsistent. Purpose To determine if US features can help predict tumor progression in patients with low-risk PTMC undergoing AS.

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Backgruound: While the triglyceride-glucose (TyG) index is a measure of insulin resistance, its association with cardiovascular disease (CVD) has not been well elucidated. We evaluated the TyG index for prediction of CVDs in a prospective large communitybased cohort.

Methods: Individuals 40 to 70 years old were prospectively followed for a median 15.

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Differentiated high-grade thyroid carcinoma (DHGTC) is a new entity in the 2022 WHO classification. We aimed to investigate the incidence and clinicopathological features of differentiated HG thyroid carcinoma (DHGTC) and compare the clinicopathological parameters of DHGTC, DTC without HG features, and poorly differentiated thyroid carcinoma (PDTC). A total of 1069 DTCs including papillary thyroid carcinomas (PTCs) and follicular thyroid carcinomas (FTCs) were included in this study.

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Objective: To investigate surgical, and clinical outcomes in patients with low-risk papillary thyroid microcarcinoma (PTMC) according to treatment options [immediate operation (IOP) vs delayed operation after active surveillance (AS) (DOP)].

Background: AS has been adopted as an alternative to immediate surgery in patients with low-risk PTMC. Although some patients undergo surgery during AS, there is little information on surgical, and clinical outcomes after delayed operation after AS.

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Background: Skin metastasis from papillary thyroid cancer (PTC) is a rare entity that can occur up to decades after treatment of the primary tumor. Here, we present a patient who developed skin metastasis 10 years after treatment of her primary tumor and describe the molecular findings of the metastatic lesion.

Case Presentation: A 44-year-old female with a history of PTC who underwent a total thyroidectomy and radioactive iodine (RAI) treatment 10 years ago presented with a 1.

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Although the clinical activity score (CAS) is a validated scoring system for identifying disease activity of thyroid-associated orbitopathy (TAO), it may produce differing results depending on the evaluator, and an experienced ophthalmologist is required for accurate evaluation. In this study, we developed a machine learning (ML)-assisted system to mimic an expert's CAS assessment using digital facial images and evaluated its accuracy for predicting the CAS and diagnosing active TAO (CAS ≥ 3). An ML-assisted system was designed to assess five CAS components related to inflammatory signs (redness of the eyelids, redness of the conjunctiva, swelling of the eyelids, inflammation of the caruncle and/or plica, and conjunctival edema) in patients' facial images and to predict the CAS by considering two components of subjective symptoms (spontaneous retrobulbar pain and pain on gaze).

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Active surveillance (AS) is an alternative to thyroidectomy for the management of low-risk papillary thyroid microcarcinoma (PTMC). However, prospective AS data collected from diverse populations are needed. This multicenter prospective cohort study enrolled patients from three referral hospitals in Korea.

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Article Synopsis
  • A systematic review and individual participant data analysis were conducted to explore the link between subclinical thyroid dysfunction and the development of diabetes among adults.
  • After analyzing data from 61,178 participants over an average of 8.2 years, the study found no significant association between subclinical hypothyroidism or hyperthyroidism and the incidence of diabetes.
  • The findings suggest that routine screening for diabetes in patients with subclinical thyroid issues is not warranted, given the lack of evidence supporting a direct connection.
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Active surveillance (AS) is offered as a choice to patients with low-risk papillary thyroid microcarcinoma (PTMC). This study aimed to identify patient and physician factors associated with the choice of AS. We conducted a cross-sectional survey of patients with low-risk PTMC who were enrolled in a prospective study comparing outcomes following AS and surgery.

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Active surveillance (AS) has been established as an alternative to immediate surgery for low-risk papillary thyroid microcarcinoma (PTMC). Nonetheless, it remains difficult to decide between AS and immediate surgery, since limited objective evidence exists regarding risks and benefits. The aim of study is to compare the cumulative costs of AS and immediate surgery.

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Background: We evaluated whether postpartum muscle mass affects the risk of type 2 diabetes mellitus (T2DM) in Korean women with gestational diabetes mellitus (GDM).

Methods: A total of 305 women with GDM (mean age, 34.9 years) was prospectively evaluated for incident prediabetes and T2DM from 2 months after delivery and annually thereafter.

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Objective: Mutations in the telomerase reverse transcriptase (TERT) promoter have been reported as a convincing prognostic factor in papillary thyroid carcinomas (PTCs). We aimed to investigate the frequency of TERT promoter mutations in patients with thyroid cancer and identify the clinicopathological factors associated with them in PTCs.

Design: A total of 1086 consecutive cases of thyroid cancer composed of mostly PTCs were included in this study.

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