Browsing by Author "Hirano, Satoshi"

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    General Surgery Education Across Three Continents
    (Elsevier, 2017) McIlhenny, Craig; Kurashima, Yo; Chan, Carlos; Hirano, Satoshi; Domínguez-Rosado, Ismael; Stefanidis, Dimitrios; Surgery, School of Medicine
    Surgical education has seen tremendous changes in the US over the past decade. The Halstedian training model of see one, do one, teach one that governed surgical training for almost 100 years has been replaced by the achievement of the ACGME competencies, milestones, entrustable professional activities (EPAs), and acquisition of surgical skill outside the operating room on simulators. Several of these changes in American medical education have been influenced by educators and training paradigms abroad. In this paper, we review the training paradigms for surgeons in the UK, Japan, and Mexico to allow comparisons with the US training paradigm and promote the exchange of ideas.
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    Pathological Complete Response in Patients With Resected Pancreatic Adenocarcinoma After Preoperative Chemotherapy
    (American Medical Association, 2024-06-03) Stoop, Thomas F.; Oba, Atsushi; Wu, Y. H. Andrew; Beaty, Laurel E.; Colborn, Kathryn L.; Janssen, Boris V.; Al-Musawi, Mohammed H.; Rodriguez Franco, Salvador; Sugawara, Toshitaka; Franklin, Oskar; Jain, Ajay; Saiura, Akio; Sauvanet, Alain; Coppola, Alessandro; Javed, Ammar A.; Groot Koerkamp, Bas; Miller, Braden N.; Mack, Claudia E.; Hashimoto, Daisuke; Caputo, Damiano; Kleive, Dyre; Sereni, Elisabetta; Belfiori, Giulio; Ichida, Hirofumi; van Dam, Jacob L.; Dembinski, Jeanne; Akahoshi, Keiichi; Roberts, Keith J.; Tanaka, Kimitaka; Labori, Knut J.; Falconi, Massimo; House, Michael G.; Sugimoto, Motokazu; Tanabe, Minoru; Gotohda, Naoto; Krohn, Paul S.; Burkhart, Richard A.; Thakkar, Rohan G.; Pande, Rupaly; Dokmak, Safi; Hirano, Satoshi; Burgdorf, Stefan K.; Crippa, Stefano; van Roessel, Stijn; Satoi, Sohei; White, Steven A.; Hackert, Thilo; Nguyen, Trang K.; Yamamoto, Tomohisa; Nakamura, Toru; Bachu, Vismaya; Burns, William R.; Inoue, Yosuke; Takahashi, Yu; Ushida, Yuta; Aslami, Zohra V.; Verbeke, Caroline S.; Fariña, Arantza; He, Jin; Wilmink, Johanna W.; Messersmith, Wells; Verheij, Joanne; Kaplan, Jeffrey; Schulick, Richard D.; Besselink, Marc G.; Del Chiaro, Marco; Surgery, School of Medicine
    Importance: Preoperative chemo(radio)therapy is increasingly used in patients with localized pancreatic adenocarcinoma, leading to pathological complete response (pCR) in a small subset of patients. However, multicenter studies with in-depth data about pCR are lacking. Objective: To investigate the incidence, outcome, and risk factors of pCR after preoperative chemo(radio)therapy. Design, setting, and participants: This observational, international, multicenter cohort study assessed all consecutive patients with pathology-proven localized pancreatic adenocarcinoma who underwent resection after 2 or more cycles of chemotherapy (with or without radiotherapy) in 19 centers from 8 countries (January 1, 2010, to December 31, 2018). Data collection was performed from February 1, 2020, to April 30, 2022, and analyses from January 1, 2022, to December 31, 2023. Median follow-up was 19 months. Exposures: Preoperative chemotherapy (with or without radiotherapy) followed by resection. Main outcomes and measures: The incidence of pCR (defined as absence of vital tumor cells in the sampled pancreas specimen after resection), its association with OS from surgery, and factors associated with pCR. Factors associated with overall survival (OS) and pCR were investigated with Cox proportional hazards and logistic regression models, respectively. Results: Overall, 1758 patients (mean [SD] age, 64 [9] years; 879 [50.0%] male) were studied. The rate of pCR was 4.8% (n = 85), and pCR was associated with OS (hazard ratio, 0.46; 95% CI, 0.26-0.83). The 1-, 3-, and 5-year OS rates were 95%, 82%, and 63% in patients with pCR vs 80%, 46%, and 30% in patients without pCR, respectively (P < .001). Factors associated with pCR included preoperative multiagent chemotherapy other than (m)FOLFIRINOX ([modified] leucovorin calcium [folinic acid], fluorouracil, irinotecan hydrochloride, and oxaliplatin) (odds ratio [OR], 0.48; 95% CI, 0.26-0.87), preoperative conventional radiotherapy (OR, 2.03; 95% CI, 1.00-4.10), preoperative stereotactic body radiotherapy (OR, 8.91; 95% CI, 4.17-19.05), radiologic response (OR, 13.00; 95% CI, 7.02-24.08), and normal(ized) serum carbohydrate antigen 19-9 after preoperative therapy (OR, 3.76; 95% CI, 1.79-7.89). Conclusions and relevance: This international, retrospective cohort study found that pCR occurred in 4.8% of patients with resected localized pancreatic adenocarcinoma after preoperative chemo(radio)therapy. Although pCR does not reflect cure, it is associated with improved OS, with a doubled 5-year OS of 63% compared with 30% in patients without pCR. Factors associated with pCR related to preoperative chemo(radio)therapy regimens and anatomical and biological disease response features may have implications for treatment strategies that require validation in prospective studies because they may not universally apply to all patients with pancreatic adenocarcinoma.