The Accomplishments and Legacy of Saul Hertz, MD

Abstract

The early history of the use of radioactive iodine (RAI) is complicated and interesting, and also difficult to discover, especially since several histories have presented inaccurate content. This article is a comprehensive review of the accomplishments of Saul Hertz. Extensive use of primary-source verification has clarified several issues, including the question of whether Hertz alone conceived and asked the pivotal question: “Could iodine be made radioactive artificially?”; on what date RAI was first used to treat hyperthyroidism; and why 2 articles on the first use of RAI for treatment of hyperthyroidism, from 2 different sets of authors from the same department of the same institution, appeared adjacent to each other in the same issue of the Journal of the American Medical Association in 1946. Our review also chronicles several major challenges that Hertz overcame to produce his pivotal work. Hertz was clearly the originator and a visionary of RAI therapy in benign and malignant thyroid disease. We believe he can be considered one of the fathers of nuclear medicine. Hertz’s paradigm-changing work was a pivotal medical discovery of the 20th century. The legacy of Hertz continues while the application of RAI therapy continues to evolve. RAI therapy remains the preferred treatment in most situations for autonomous nodules and toxic multinodular goiter and remains a safe and effective treatment for Graves disease after more than 80 y of global clinical use. RAI treatment of differentiated thyroid cancer remains a first-line treatment for most patients after surgery, especially for those with intermediate- or high-risk disease.

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