POTTER vs TSRA App

POTTER is a highly accurate and user-friendly emergency surgery risk calculator developed by George Velmahos (MD, PhD), Haytham Kaafarani (MD, MPH), Dimitris Bertsimas (PhD), and Jack Dunn (PhD). This Machine Learning Algorithm is the digital manifestation of the research found in the October 2018 Annals of Surgery publication, “Surgical Risk Is Not Linear: Derivation and Validation of a Novel, User-friendly, and Machine Learning-based Predictive OpTimal Trees in Emergency Surgery Risk (POTTER) Calculator.”

The TSRA App is the official study app from the Thoracic Surgery Residents Association — built for cardiothoracic surgery residents preparing for board certification. Access your complete TSRA library on iPhone and iPad: TEXTBOOKS Browse all 6 TSRA textbooks with 600+ chapters covering surgical indications, operative techniques, clinical scenarios, decision algorithms, and operative dictations. Read chapters with rich formatting, annotate key passages, and bookmark content for quick review. QUESTION BANK Test your knowledge with 1000+ board-style multiple-choice questions across Adult Cardiac, General Thoracic, Congenital Heart Surgery, and Critical Care. Get instant feedback with detailed explanations, track your accuracy by category, and revisit missed questions with smart review. PODCASTS Listen to 120+ expert audio lectures from TSRA faculty. Stream or download episodes for offline listening. Background playback lets you study during commutes, workouts, or downtime. COURSES Work through structured learning paths in General Thoracic, Critical Care, and Congenital Cardiac Surgery. Each course includes lessons, topics, and quizzes with progress tracking. STUDY TOOLS - Create custom flashcard decks for active recall - Annotate and highlight textbook chapters - Bookmark content across all sections - Sketch diagrams and notes on iPad - Set daily study goals and track streaks OFFLINE ACCESS Download chapters and podcast episodes for study without an internet connection — perfect for on-call nights and travel. PROGRESS TRACKING Monitor your accuracy, identify weak areas, track daily streaks, and see your weekly activity at a glance from the personalized dashboard. DESIGNED FOR RESIDENTS Dark mode for late-night study. Haptic feedback throughout. Syncs your progress across iPhone and iPad. Built entirely with native iOS for fast, smooth performance. TSRA membership is required to access content. Create your account or manage your membership at tsraweb.com.