Curative surgical resection of adrenocortical carcinoma: Determining long-term outcome based on conditional disease-free probability

Yuhree Kim, Georgios A. Margonis, Jason D. Prescott, Thuy B. Tran, Lauren M. Postlewait, Shishir K. Maithel, Tracy S. Wang, Jason A. Glenn, Ioannis Hatzaras, Rivfka Shenoy, John E. Phay, Kara Keplinger, Ryan C. Fields, Linda X. Jin, Sharon M. Weber, Ahmed Salem, Jason K. Sicklick, Shady Gad, Adam C. Yopp, John C. MansourQuan Yang Duh, Natalie Seiser, Carmen C. Solorzano, Colleen M. Kiernan, Konstantinos I. Votanopoulos, Edward A. Levine, George A. Poultsides, Timothy M. Pawlik

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Objective: To evaluate conditional disease-free survival (CDFS) for patients who underwent curative intent surgery for adrenocortical carcinoma (ACC). Background: ACC is a rare but aggressive tumor. Survival estimates are usually reported as survival from the time of surgery. CDFS estimates may be more clinically relevant by accounting for the changing likelihood of diseasefree survival (DFS) according to time elapsed after surgery. Methods: CDFS was assessed using a multi-institutional cohort of patients. Cox proportional hazards models were used to evaluate factors associated with DFS. Three-year CDFS (CDFS3) estimates at "x" year after surgery were calculated as follows: CDFS3=DFS(x+3)/DFS(x). Results: One hundred ninety-two patients were included in the study cohort; median patient age was 52 years. On presentation, 36% of patients had a functional tumor and median size was 11.5 cm. Most patients underwent R0 resection (75%) and 9% had N1 disease. Overall 1-, 3-, and 5-year DFS was 59%, 34%, and 22%, respectively. Using CDFS estimates, the probability of remaining disease free for an additional 3 years given that the patient had survived without disease at 1, 3, and 5 years, was 43%, 53%, and 70%, respectively. Patients with less favorable prognosis at baseline demonstrated the greatest increase in CDFS3 over time (eg, capsular invasion: 28%-88%, D60% vs no capsular invasion: 51%-87%, D36%). Conclusions: DFS estimates for patients with ACC improved dramatically over time, in particular among patients with initial worse prognoses. CDFS estimates may provide more clinically relevant information about the changing likelihood of DFS over time.

Original languageEnglish (US)
Pages (from-to)197-204
Number of pages8
JournalAnnals of surgery
Volume265
Issue number1
DOIs
StatePublished - 2017

Keywords

  • Adrenocortical carcinoma
  • Conditional probability
  • Outcomes
  • Surgery

ASJC Scopus subject areas

  • Surgery

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