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In December 2019, a novel coronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused an outbreak of coronavirus disease 2019 (COVID-19) that resulted in a global pandemic with substantial morbidity and mortality. Currently, there is no specific treatment or approved vaccine against COVID-19. The underlying associated comorbidity and diminished immune function of some pituitary patients (whether caused by the disease and its sequelae or treatment with excess glucocorticoids) increases their risk of contracting and developing complications from COVID-19 infection.

A review of studies in PubMed and Google Scholar published between January 2020 to the time of writing (May 1, 2020) was conducted using the search terms 'pituitary,' 'coronavirus,' 'COVID-19', '2019-nCoV', 'diabetes mellitus', 'obesity', 'adrenal,' and 'endocrine.'

Older age and pre-existing obesity, hypertension, cardiovascular disease, and diabetes mellitus increase the risk of hospitalization and death in COVID-19I = diabetes insipidus; DM = diabetes mellitus; SARS-CoV-2 = severe acute respiratory syndrome coronavirus 2.

ACE = angiotensin-converting enzyme; AI = adrenal insufficiency; ARB = angiotensin receptor blocker; ARDS = acute respiratory disease syndrome; COVID-19 = coronavirus disease 2019; CPAP = continuous positive airway pressure; DI = diabetes insipidus; DM = diabetes mellitus; SARS-CoV-2 = severe acute respiratory syndrome coronavirus 2.

Cervical lymph node (CLN) metastases (mets) often occur in differentiated thyroid cancer (DTC), especially in the central compartment, and are a major predictor of local recurrence. We examined clinical endpoints in three groups of patients based on status of lymph node involvement those with definite lymph node involvement (N1), negative lymph nodes (N0), and no lymph nodes resected (Nx). We correlated these endpoints with clinical and pathologic features of these patients.

Medical records of 261 patients with DTC who underwent thyroidectomy between 2006 and 2018 at our center were reviewed. Lymph node status of patients was categorized based on American Joint Committee on Cancer (AJCC) 8th edition criteria as N1, N0, and Nx. We performed statistical analysis to assess the differences among these groups, using one-way analysis of variance. When significant differences were found, pairwise comparisons were conducted among the three groups. Statistical significance was defined as 2-tailed P<.05 for all PTC = papillary thyroid cancer; TgAb = thyroglobulin auto-antibody.

AJCC = American Joint Committee on Cancer; CLN = cervical lymph node; DTC = differentiated thyroid cancer; FTC = follicular thyroid cancer; mets = metastases; N0 = no cancer in any lymph nodes; N1 = cancer in a lymph node; N1a = cancer in a central compartment lymph node; N1b = cancer in a lateral neck lymph node; Nx = lymph nodes not resected or examined; PTC = papillary thyroid cancer; TgAb = thyroglobulin auto-antibody.

Moderate-to-severe subacute thyroiditis is clinically managed with 6 to 8 weeks of glucocorticoid therapy. However, no studies have evaluated short-term prednisone treatment for subacute thyroiditis.

This 24-week, prospective, single-blind, randomized controlled study enrolled patients (aged 18 to 70 years) with subacute thyroiditis who were hospitalized between August, 2013, and December, 2014. Patients with moderate-to-severe symptoms were randomly assigned to receive either 30 mg/day prednisone for 1 week, followed by 1 week of nonsteroidal anti-inflammatory drugs, or the conventional 6-week prednisone therapy. The primary endpoint was intergroup differences in treatment efficacy at the end of the treatment course. Secondary endpoints included between-group differences in post-withdrawal adverse effect parameters and thyroid function at weeks 6, 12, and 24.

We screened 96 patients, randomized 52 participants, and 50 participants completed the study. Efficacy and recurrence rates were not significantlTPOAb = antithyroid peroxidase antibody; TRAb = antithyroid-stimulating hormone receptor antibody.

We prospectively investigated the accuracy of the seated saline suppression test (SSST) in 113 patients with hypertension (including 93 primary aldosteronism [PA] and 20 essential hypertension patients) in the Department of Endocrinology and Metabolism.

Each patient underwent a recumbent saline suppression test (RSST) and SSST. The accuracy of the SSST for a confirmative PA diagnosis and subtype classification was evaluated and compared with the RSST.

The area under the receiver operating characteristic (ROC) curve of plasma aldosterone concentration (PAC) for the SSST was significantly greater than that for the RSST (0.945±0.0199 vs. 0.828 ± 0.0404; P<.05). The ROC analysis showed that the optimal PAC cut-off values were 12.94 ng/dL for the SSST (sensitivity 86.02%, specificity 95%; Youden index [YI] 0.810) and 12.04 ng/dL for the RSST (sensitivity 83.15%, specificity 57%; YI 0.401). The optimal PAC cut-off value for classifying aldosterone-producing adenoma and idiopathic hyperaldosteronism was 18.e imaging; PA = primary aldosteronism; PAC = plasma aldosterone concentration; PRA = plasma renin activity; ROC = receiver operating characteristic; RSST = recumbent saline suppression test; SSST = seated saline suppression test; YI = Youden index.

Suppression of testosterone secretion and/or action in transgender women using cyproterone acetate (CPA), spironolactone, or gonadotropin-releasing hormone analogues (GA) is achieved through various mechanisms. Our objective was to characterize possible differential effects of these compounds on metabolic and endocrine variables.

We conducted a historic cohort study of transgender patients treated in a tertiary referral center. A longitudinal analysis of treatment naïve patients and a cross-sectional analysis of the whole cohort at the last visit was carried out.

Among 126 transgender women (75 treatment-naïve), CPA was the predominant androgen suppressive therapy (70%), followed by spironolactone (17.6%), and GA (10.2%). Among those who were treatment-naïve, the increase in serum prolactin levels over baseline was greater at 3 months following CPA initiation (mean change 397 ± 335 mIU/L) than following spironolactone (20.1 ± 87 mIU/L) or GA initiation (64.6 ± 268 mIU/L; P = .0002). Prolactin levels rem = body mass index; CPA = cyproterone acetate; E2 = estradiol; FSH = follicle-stimulating hormone; GA = gonadotropin-releasing hormone analogues; LH = luteinizing hormone.

Studies have shown that metabolic abnormalities influence the immune system. Because the prevalence of metabolic and autoimmune thyroid diseases has increased synchronously, the correlation between them was worth exploring. The study objective was to investigate the relationship between metabolic disorders and thyroid auto-antibodies in euthyroid subjects.

Data were obtained from the Thyroid Diseases and Diabetes Mellitus project survey of 55,891 subjects from 31 provinces in China. The body mass index (BMI), waist circumference (WC), blood pressure, thyroid peroxidase antibodies (TPOAbs), thyroglobulin antibodies (TgAbs), thyroid-stimulating hormone (TSH), urinary iodine concentration, blood glucose, lipid profile, and uric acid levels were evaluated. Free thyroxine and free triiodothyronine levels were measured in patients with abnormal serum TSH levels.

In males, the BMI, WC, systolic blood pressure (SBP), diastolic blood pressure (DBP), and 2-hour post-glucose oral glucose tolerance test results of s ratio; SBP = systolic blood pressure; TC = total cholesterol; TG = triglycerides; TgAb = thyroglobulin antibody; TPOAb = thyroid peroxidase antibody; TSH = thyroid-stimulating hormone; UA = uric acid; WC = waist circumference.

In 2015, the updated American Thyroid Association (ATA) guidelines recommended observation for suspicious subcentimeter thyroid nodules, based on their indolent course. We aimed to evaluate the frequency of biopsy in suspicious thyroid nodules since the introduction of these guidelines, including factors contributing to clinical decision-making in a tertiary care center.

We conducted a retrospective study of patients in the Mayo Clinic, Rochester, Minnesota, with new, subcentimeter suspicious thyroid nodules (by report or by sonographic features) between March, 2015, and November, 2017, not previously biopsied.

We identified 141 nodules in 129 patients mean age 58.1±14.1 years, 74% female, 87% Caucasian. The frequency of biopsy in suspicious thyroid nodules was 39%. Ultrasound features that were the strongest predictors for biopsy on multivariate analysis included nodule volume (odds ratio [OR] 37.3 [7.5-188.7]), radiology recommendation for biopsy (OR 2.6 [1.8-3.9]) and radiology report of the nodule as "suspicious" (OR 2.1 [1.4-3.2]). Patient's age and degree of comorbidities did not change the likelihood for biopsy, nor did it vary by clinician type or how the nodule was initially found (incidentally or not incidentally). Among 86 nodules that were not biopsied, 41% had no specific follow-up recommendations.

One third of suspicious thyroid nodules underwent biopsy since the release of updated ATA guidelines. Factors driving thyroid biopsy seem to be associated with nodule characteristics but not with patient factors including age and comorbidities. Further studies and development of decision aides may be helpful in providing individualized approaches for suspicious thyroid nodules.

ATA = American Thyroid Association; OR = odds ratio.

ATA = American Thyroid Association; OR = odds ratio.

Telehealth is a timely solution for delivering health care during the coronavirus disease 2019 (COVID-19) pandemic. The practice of endocrinology is suited to provide virtual care to patients with a variety of endocrine disorders. In this survey, we aimed to gauge the adoption of telehealth practices during the COVID-19 pandemic among endocrinologists in the United States (U.S.).

This was a cross-sectional, online survey-based study. Members of the Facebook group "Endocrinologists" were invited to participate in the survey. Characteristics of respondents and their rates of adoption of telehealth were described and analyzed for statistically significant associations using the Pearson chi-square test.

A total of 181 physicians responded to the survey. The majority of respondents were females (75%), younger than or equal to 40 years of age (51%), employed (72%) either by a private group/hospital or by an academic setting, worked in an urban area (88.4%), and were adult endocrinologists (93%). With the COVID-19 outbreak, more than two-fifths (44.2%) of participants switched to completely virtual visits, and an additional 44.2% switched to a majority of virtual visits, with some in-person visits in the outpatient setting. Additionally, there was a significantly higher adoption rate of telehealth among endocrinologists younger than or equal to 40 years of age (P = .02) and among those who practiced in northeastern, midwestern, and the western geographic regions of the U.S. (P = .04).

The majority of the responding endocrinologists from the U.S. appeared to have swiftly adapted by using telehealth within a few weeks of COVID-19 being declared a national emergency.

CMS = Centers for Medicare and Medicaid Services; COVID-19 = coronavirus disease 2019; PPE = personal protective equipment; U.S. = United States.

CMS = Centers for Medicare and Medicaid Services; COVID-19 = coronavirus disease 2019; PPE = personal protective equipment; U.S. = United States.