BACKGROUND: The Commission on Cancer (CoC) implemented 6 operative standards to reduce technical variation in cancer surgery. Although designed to guide surgeons in performing key oncologic techniques, these standards also provide a framework for teaching high-quality cancer surgery to trainees. We assessed surgical trainees’ familiarity with the CoC Operative Standards and the underlying principles of cancer surgery to identify knowledge gaps and opportunities for improved education. STUDY DESIGN: The American College of Surgeons Cancer Surgery Standards Program distributed an anonymous survey to general surgery residents and surgical fellows across the US. Questions addressed the CoC Operative Standards and cancer surgery principles, with scores calculated on the basis of correctness. Univariate logistic regression evaluated associations between trainee or program characteristics and knowledge. Trainees were also asked about their role in procedural documentation, given the synoptic operative report requirements of the standards. RESULTS: A total of 244 surveys were completed by 205 residents and 39 fellows. Fellows reported greater familiarity with the CoC Operative Standards (68% vs 24%, p < 0.001). Only 30% of trainees reported receiving a formal curriculum on the standards. Correct response rates were 30% for CoC Operative Standards questions vs 50% for cancer surgery principles, with minimal association between knowledge and trainee or program characteristics. Most residents (71%) reported contributing to operative documentation. CONCLUSIONS: Surgical trainees demonstrated limited knowledge of the CoC Operative Standards, highlighting the need for multifaceted educational strategies at the national and institutional levels. Incorporating education about the CoC Operative Standards into surgical training can help emphasize the importance of performing and documenting critical elements of cancer operations.
Cortisol Testing to Diagnose Adrenal Insufficiency Following Adrenalectomy for Mild Autonomous Cortisol Secretion
Abstract Context Patients with mild autonomous cortisol secretion (MACS) can develop adrenal insufficiency after unilateral adrenalectomy. Objective This work aimed to determine the prevalence, duration, and predictors of adrenal insufficiency, and compare postoperative basal cortisol and cosyntropin stimulation test (CST). Methods In this multicenter retrospective study of patients with MACS, adrenal insufficiency was diagnosed when postoperative basal cortisol was less than 10 µg/dL and/or CST < 18 µg/dL. The results were concordant when both tests met cutoffs. Biochemical (BSS) and clinical severity scores (CSS) were calculated. Results Among 281 patients with MACS (80% women), postoperative adrenal insufficiency was diagnosed in 153 (54.5%) patients. Adrenal insufficiency inversely correlated with age (odds ratio [OR] 0.67 per 10 years; 95% CI, 0.53-0.84). Low basal cortisol and CST were associated with younger age (OR 0.64 per 10 years for both) and higher BSS (OR 1.17 and 1.22, respectively). Basal cortisol and CST were discordant in 22% of patients, and the discordance rate was more common in patients with bilateral nodules (32% vs 19%; P < .001). The median time to adrenal insufficiency recovery was 3.9 months (IQR, 3-5.9 months), with longer duration associated with higher BSS and CSS: 3 months for mild, 4 to 5 months for moderate, and 12 to 14 months for severe BSS and CSS. Conclusion Approximately half of patients with MACS developed postoperative adrenal insufficiency, with 50% recovering by 3.9 months after surgery. BSS correlated with basal cortisol, CST, and duration of adrenal insufficiency. As discordant results were noted in 22%, performing both basal cortisol and CST postoperatively should be considered.
FRI177 Cosyntropin Stimulation Testing Is More Selective Than Postoperative Day 1 Basal Cortisol for Diagnosing Secondary Adrenal Insufficiency Following Unilateral Adrenalectomy
Abstract Disclosure: S.H. Johnson: None. C. Zhang: None. P.T. Hangge: None. T.W. Yen: None. T. Shaik: None. K. Doffek: None. J.W. Findling: None. T.B. Carroll: None. D.B. Evans: None. S. Dream: None. T.S. Wang: None. Background: Secondary adrenal insufficiency (SAI) may occur in patients after unilateral adrenalectomy for adrenal-dependent hypercortisolism (HC) and/or primary aldosteronism (PA). Perioperative protocols include routine glucocorticoid replacement (GR) or selective GR based on postoperative day 1 (POD1) basal cortisol levels or cosyntropin stimulation testing (CST). This study aimed to assess if a POD1 basal cortisol level alone was predictive of an abnormal CST and the need for GR in patients following unilateral adrenalectomy for HC and/or PA. Methods: This is a single institution retrospective review of consecutive unilateral adrenalectomies performed for HC and/or PA from 9/2014-10/2022. Patients were grouped as overt hypercortisolism (OH;n=42), mild autonomous cortisol excretion (MACE;n=70), mixed PA/HC (n=22) or PA (n=73); 22 patients with PA did not have preoperative evaluation for HC. Preoperative morning cortisol after low-dose dexamethasone suppression testing (DST), was used to define MACE (1.8-4.9 µg/dL) and OH (≥5.0). POD1 CST was performed for all patients with HC and prior to 2021, all patients with PA. SAI was defined as basal cortisol ≤5 or stimulated ≤14 (≤18 before 4/2017). Receiver operating characteristic (ROC) curves and sensitivity analyses were performed to assess the sensitivity (SN) and specificity (SP) of cutoffs within the range of observed basal cortisol levels in predicting an abnormal CST and need for GR. Results: Of 207 patients, 152 had POD1 CST (93% OH, 96% MACE, 73% PA/HC, 41% PA). Of these, 80 (53%) had SAI (67% OH, 55% MACE, 44% PA/HC, and 33% PA). Of the 10 patients with PA and SAI, 5 did not have preoperative testing for HC. Overall, 81 patients were discharged on GR. Median (interquartile range [IQR]) duration of GR was 246 (127,557), 55 (38,207), 74 (16,185), and 26 (15,36) days in patients with OH, MACE, PA/HC, and PA, respectively. At a median follow-up of 142 days (IQR 42,617), 12 patients (5 OH, 6 MACE, 1 PA/HC) remained on GR. The SN/SP of a basal cortisol ≤10 in predicting GR was 92%/77% in patients with OH and 94%/73% of patients with MACE. Compared to initiation of GR based on basal cortisol ≤10, CST identified 4 patients with SAI in the combined OH and MACE cohorts who would not have received GR, and 11 in the combined cohort who did not require GR. For patients with PA and PA/HC, a basal cortisol ≤10 had SN of 100% and SP of 85% and 67%, respectively. The optimal basal cortisol for predicting SAI in patients with PA/HC was ≤5 (SN,SP 100%). Area under the curve for all ROC curves was >0.9. Conclusion: These results demonstrate that in patients who underwent unilateral adrenalectomy for HC, PA, or mixed PA/HC, POD1 CST improved identification of patients at risk for SAI compared to basal cortisol levels alone. While basal cortisol levels alone may be considered in patients with PA or mixed HC/PA, all other patients with HC should have POD1 CST to determine need for postoperative GR. Presentation: Friday, June 16, 2023
Abstract P141: Health Care Insurance, Financial Concerns in Accessing Care, and Nonelective Readmissions Following Acute Myocardial Infarction
Background: While lack of insurance is known to be associated with worse outcomes after myocardial infarction (MI), it is unknown whether health insurance status is associated with rates of non-elective hospitalizations after MI. Methods: Using data on 3571 U.S. MI patients enrolled between April 2005 to December 2008 in the 24-center, prospective TRIUMPH registry, we examined the association between being insured (reference), underinsured, and uninsured on rates of non-elective readmissions (all-cause) in the 1 st year following MI. Insurance status was obtained from medical records, and underinsurance was defined as those patients with insurance but with financial concerns about accessing care from patient interviews. Multivariable modified Poisson regression models were used to adjust for site, demographics, MI severity, risk factors, socio-economic, and psychological factors. Results: A total of 2269 (63.5%) patients were insured; 650 (18.2%) were underinsured; and 652 (18.3%) were uninsured. Emergency readmissions were highest for uninsured patients (25.0%), followed by the underinsured (21.8%), and lowest in insured patients (19.5%) (P<.001). After multivariable adjustment, uninsured patients had significantly higher rates of emergency readmission (adjusted RR, 1.52 [95% CI: 1.22-1.90] while underinsured patients did not (adjusted RR, 0.99 [95% CI: 0.81-1.21]) (Figure). Conclusions: Uninsured patients had a significantly higher adjusted risk of non-elective readmissions after MI, while underinsured patients did not. Future studies are needed to determine if providing even modest insurance coverage to the uninsured can minimize readmission rates.
Medullary Thyroid Carcinoma without Marked Elevation of Calcitonin: A Diagnostic and Surveillance Dilemma