Browsing by Author "McDow, Alexandria D."

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    Adoption of Active Surveillance for Very Low-Risk Differentiated Thyroid Cancer in the United States: A National Survey
    (Endocrine Society, 2021) Pitt, Susan C.; Yang, Nan; Saucke, Megan C.; Marka, Nicholas; Hanlon, Bret; Long, Kristin L.; McDow, Alexandria D.; Brito, J.P.; Roman, Benjamin R.; Surgery, School of Medicine
    Context: Active surveillance (AS) of thyroid cancer with serial ultrasounds is a newer management option in the United States. Objective: This work aimed to understand factors associated with the adoption of AS. Methods: We surveyed endocrinologists and surgeons in the American Medical Association Masterfile. To estimate adoption, respondents recommended treatment for 2 hypothetical cases appropriate for AS. Established models of guideline implementation guided questionnaire development. Outcome measures included adoption of AS (nonadopters vs adopters, who respectively did not recommend or recommended AS at least once; and partial vs full adopters, who respectively recommended AS for one or both cases). Results: The 464 respondents (33.3% response) demographically represented specialties that treat thyroid cancer. Nonadopters (45.7%) were significantly (P < .001) less likely than adopters to practice in academic settings, see more than 25 thyroid cancer patients/year, be aware of AS, use applicable guidelines (P = .04), know how to determine whether a patient is appropriate for AS, have resources to perform AS, or be motivated to use AS. Nonadopters were also significantly more likely to be anxious or have reservations about AS, be concerned about poor outcomes, or believe AS places a psychological burden on patients. Among adopters, partial and full adopters were similar except partial adopters were less likely to discuss AS with patients (P = .03) and more likely to be anxious (P = .04), have reservations (P = .03), and have concerns about the psychological burden (P = .009) of AS. Few respondents (3.2%) believed patients were aware of AS. Conclusion: Widespread adoption of AS will require increased patient and physician awareness, interest, and evaluation of outcomes.
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    Bilateral Adrenal Nodules in the Setting of Disseminated Fungal Infection: An Important Consideration for Appropriate Management of Adrenal Pathology
    (Elsevier, 2024-12-16) Johnson, Bailey N.; Braafladt, Signe; Lavik, John-Paul; Walton, Lillian; McDow, Alexandria D.; Surgery, School of Medicine
    Background/objective: Increased utilization of cross-sectional imaging has led to a rise in diagnosis of incidental adrenal lesions. Physicians in many clinical settings are increasingly faced with addressing these incidental lesions by initiating the correct workup, diagnosis, and long-term follow-up plan. Our objective was to demonstrate the importance of maintaining a broad differential and completing a thorough workup in determining the correct treatment plan for patients with bilateral adrenal lesions. Case report: We present 2 patients who recently completed chemotherapy for lymphoma, found to have new bilateral adrenal lesions on postchemotherapy imaging. Urine antigen and/or adrenal biopsy was performed to confirm the diagnosis of disseminated fungal infection. This diagnosis has major implications on the treatment plan, which includes antifungal therapy instead of surgical management or additional chemotherapy. Cross-sectional imaging after initiation of antifungal treatment demonstrated decreasing size of nodules. Discussion: A broad differential is critical when working up and developing treatment plans for adrenal nodules, specifically considering a fungal etiology in the setting of immunosuppression or primary extra-adrenal malignancy. Conclusion: Incidentally found adrenal lesions are becoming more common, and in turn, the obligation for appropriate management of adrenal pathology not only falls to medical and surgical endocrinologists but also to general practitioners. It is prudent to consider atypical etiologies including disseminated fungal infection prior to surgical excision or initiation of chemotherapy as those treatment strategies would not benefit select patients.
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    Factors Associated with Physicians’ Recommendations for Managing Low-Risk Papillary Thyroid Cancer
    (Elsevier, 2021) McDow, Alexandria D.; Roman, Benjamin R.; Saucke, Megan C.; Jensen, Catherine B.; Zaborek, Nick; Jennings, Jamia Linn; Davies, Louise; Brito, Juan P.; Pitt, Susan C.; Surgery, School of Medicine
    Background: The 2015 American Thyroid Association endorsed less aggressive management for low-risk papillary thyroid cancer (LR-PTC). We aimed to identify factors influencing physicians' recommendations for LR-PTC. Methods: We surveyed members of three professional societies and assessed respondents' recommendations for managing LR-PTC using patient scenarios. Multivariable logistic regression models identified clinical and non-clinical factors associated with recommending total thyroidectomy (TT) and active surveillance (AS). Results: The 345 respondents included 246 surgeons and 99 endocrinologists. Physicians' preference for their own management if diagnosed with LR-PTC had the strongest association with their recommendation for TT and AS (TT: OR 12.3; AS: OR 7.5, p < 0.001). Physician specialty and stated patient preference were also significantly associated with their recommendations for both management options. Respondents who received information about AS had increased odds of recommending AS. Conclusions: Physicians' recommendations for LR-PTC are strongly influenced by non-clinical factors, such as personal treatment preference and specialty.
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    Hypercalcemic Crisis Caused by a Parathyroid Mass Requiring Thoracoscopic Resection
    (Elsevier, 2021-02-04) Kim, Rachel C.; Roch, Alexandra M.; Birdas, Thomas J.; Ritter, Hadley E.; McDow, Alexandria D.; Surgery, School of Medicine
    Objective: To describe the presentation, work up, and treatment of a giant parathyroid adenoma presenting as hypercalcemic crisis that ultimately weighed 57 g and extended into the mediastinum, requiring hand-assisted thoracoscopic resection. Methods: The patient is a 68-year-old man with a prior history of parathyroidectomy, who initially presented with a severe hypercalcemia of 16.3 mg/dL and a parathyroid hormone (PTH) level of 2692 pg/mL on routine labs. Results: Diagnostic and staging work up revealed a 7.2-cm mass extending from just superior to the sternal notch into the right posterior mediastinum to the carina, causing esophageal displacement. No evidence of local invasion or distant metastasis was observed on further imaging, and cytology demonstrated hypercellular parathyroid tissue. The PTH level of the aspirate was >5000 pg/mL. The patient subsequently underwent a right hand-assisted video-assisted thoracoscopic resection of the intrathoracic mass. Final pathology identified a 7.0-cm, 57-g parathyroid adenoma, without any pathologic findings suspicious for malignancy. However, the endocrine surgery team plans for annual laboratory assessment to ensure no recurrence. Conclusion: Primary hyperparathyroidism is most commonly caused by a single adenoma. However, in the setting of severe hypercalcemia and elevated PTH, one must have a high suspicion for malignancy, and care should be taken to remove the mass en bloc. For extremely large adenomas extending into the mediastinum, a minimally invasive, hand-assisted, thoracoscopic approach is a safe and effective method of resection.
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    Multifocal C-cell Hyperplasia and Marked Hypercalcitoninemia in a Diabetic Patient Treated With Glucagon-Like Peptide-1 Agonist With Concurrent Multinodular Goiter and Hyperparathyroidism
    (Springer Nature, 2023-01-05) Zou, Sifan; McDow, Alexandria D.; Saeed, Zeb; Hou, Tieying; Pathology and Laboratory Medicine, School of Medicine
    Thyroid C-cell hyperplasia (CCH) is divided into physiologic or reactive CCH and neoplastic CCH. Glucagon-like peptide-1 receptor agonists (GLP-1 Ra) is a group of medications used to treat type 2 diabetes that has documented C-cell stimulation effect in rodents, leading to subsequent CCH and medullary thyroid carcinoma (MTC) in rats and/or mice. Currently, there is no sufficient evidence supporting the association between GLP-1 Ra and human thyroid CCH and/or MTC. Here, we present a case of significant hypercalcitoninemia in a 53-year-old diabetic male patient receiving GLP-1 Ra treatment with concurrent multinodular goiter and hyperparathyroidism. Total thyroidectomy and central neck dissection revealed multifocal CCH involving bilateral thyroid lobes and several negative lymph nodes. Subsequent genetic testing did not detect germline mutation of RET gene. However, due to marked hypercalcitoninemia and massive thyromegaly, unsampled medullary thyroid microcarcinoma cannot be completely ruled out. The patient's postsurgical calcitonin level was back to normal. Our case indicates the significant clinical value of monitoring serum calcitonin levels in patients receiving GLP-1 Ra, especially in presence of other thyroid and/or parathyroid pathology that may be associated with increased calcitonin and/or CCH. Literature regarding the association between GLP-1 Ra and CCH is also reviewed.
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    Thyroid Lobectomy for Low-Risk Papillary Thyroid Cancer: A National Survey of Low- and High-Volume Surgeons
    (Springer, 2021) McDow, Alexandria D.; Saucke, Megan C.; Marka, Nicholas A.; Long, Kristin L.; Pitt, Susan C.; Surgery, School of Medicine
    Background: The 2015 American Thyroid Association guidelines endorsed lobectomy for patients with low-risk papillary thyroid cancer (PTC) measuring 1-4 cm. Attitudes about the use of lobectomy for these patients are lacking, particularly from low-volume surgeons who perform the majority of thyroidectomies in the US. Methods: A survey was mailed to 1000 surgeons stratified by specialty (500 general surgeons and 500 otolaryngologists) registered with the American Medical Association, to evaluate beliefs and practices about the extent of surgery for low-risk PTC. Comparisons examined differences by surgeon volume. Results: Of 320 respondents who have performed thyroidectomy since 2015 (150 general surgeons, 170 otolaryngologists), 206 (64.4%) were low volume (< 26 thyroidectomies/year). The proportion of surgeons recommending lobectomy for low-risk PTC measuring 1.1 to < 4 cm ranged from 43.1 to 2.6%. High-volume surgeons recommended lobectomy more frequently for PTC measuring 1.1-3 cm, although this was not statistically significant. Thirty-three percent of respondents believed lobectomy is underused for low-risk PTC, while 10.0% believed it is overused. Additionally, 19.6% of respondents believed recurrence is more likely after lobectomy than total thyroidectomy, and 3.3% believed mortality is higher. Few believed quality of life is better after lobectomy (12.3%). Low-volume surgeons were less likely to be aware guidelines support lobectomy for low-risk PTC 1-4 cm (p < 0.001) and less likely to use clinical practice guidelines (p = 0.004). Conclusions: Most surgeons do not support lobectomy for patients with low-risk PTC > 1 cm. Awareness of guidelines and concerns about increased risk of recurrence after lobectomy may drive surgeons' preference for total thyroidectomy.
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    Uncovering the Overlap of Global and Domestic Rural Surgery for Medical Trainees
    (Elsevier, 2022) Bhatia, Manisha B.; Darkwa, Louis; Simon, Chad; Li, Helen W.; Allison, Hannah; Sparks Joplin, Tasha; Meade, Zachary S.; Keung, Connie; McDow, Alexandria D.; Surgery, School of Medicine
    Introduction: Medical trainees who participate in global rotations demonstrate improved cultural sensitivity, increased involvement in humanitarian efforts, and ability to adapt to limited resources. The global coronavirus pandemic halted global rotations for medical trainees. Domestic rural surgery (DRS) may offer a unique alternative. We aimed to understand medical students' perceptions of the similarities and differences between global surgery and DRS and how students' priorities impact career choices. Methods: An electronic survey was administered at eleven medical training institutions in Indiana, Illinois, and Michigan in spring 2021. Mixed methods analysis was performed for students who reported an interest in global surgery. Quantitative analysis was completed using Stata 16.1. Results: Of the 697 medical student respondents, 202 were interested in global surgery. Of those, only 18.3% were also interested in DRS. Students interested in DRS had more rural exposures. Rural exposures associated with DRS interest were pre-clinical courses (P = 0.002), clinical rotations (P = 0.045), and rural health interest groups (P < 0.001). Students interested in DRS and those unsure were less likely to prioritize careers involving teaching or research, program prestige, perceived career advancement, and well-equipped facilities. The students who were unsure were willing to utilize DRS exposures. Conclusions: Students interested in global surgery express a desire to practice in low-resource settings. Increased DRS exposures may help students to understand the overlap between global surgery and DRS when it comes to working with limited resources, achieving work-life balance and practice location.