Masami Nakatsuka

Evaluating agentic simulation for local public health estimation

Masami Nakatsuka, Robert Steele, Xu Han, Eric Karl Oermann

Large language model (LLM)-based generative agents can reproduce aspects of individual human behavior, but whether they can be scaled to geographically grounded populations that reproduce real-world health behaviors remains unclear. Here, we introduce LLMPopSim, a generative population simulation framework that integrates U.S. …

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All-cause excess mortality associated with the Lāhainā, Maui fires

Masami Nakatsuka, Kekoa Taparra, Benjamin Renton, Alexander Junxiang Chen et autres

Objectives To quantify all-cause excess mortality, defined as the number of deaths exceeding the expected baseline, associated with the 2023 Lāhainā wildfire in Maui County, Hawai‘i, and highlight public health implications. Methods Excess mortality was estimated using seasonal autoregressive integrated moving average …

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Automating the Referral of Bone Metastases Patients With and Without the Use of Large Language Models

Karl Lee Sangwon, Xu Han, Anton S. Becker, Yuchong Zhang et autres

BACKGROUND AND OBJECTIVES: Bone metastases, affecting more than 4.8% of patients with cancer annually, and particularly spinal metastases require urgent intervention to prevent neurological complications. However, the current process of manually reviewing radiological reports leads to potential delays in specialist referrals. We …

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Use of carotid web angioarchitecture in stratification of stroke risk

Bruck Negash, Daniel D. Wiggan, Eric A. Grin, Karl Lee Sangwon et autres

OBJECTIVE: To validate the carotid web (CW) risk stratification assessment described in previous works within a larger cohort of patients with symptomatic and incidentally found asymptomatic CWs. METHODS: A retrospective analysis of our institution's electronic medical records identified all patients with a …

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The Use of Carotid Web Angioarchitecture in Stratification of Stroke Risk

Bruck Negash, Daniel D. Wiggan, Eric A. Grin, Karl Lee Sangwon et autres

Abstract Objective To validate the carotid web (CW) risk stratification assessment described in our previous work with a larger cohort of patients with incidentally found asymptomatic CWs. Methods A retrospective analysis of our electronic medical record database identified all patients with a …

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Risk profiles and one-year outcomes of patients with newly diagnosed atrial fibrillation in India: Insights from the GARFIELD-AF Registry

Jitendra PS. Sawhney, Veerappa Annasaheb Kothiwale, Vikas Bisne, Rajashekhar Durgaprasad et autres

BACKGROUND: The Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective noninterventional registry, which is providing important information on the baseline characteristics, treatment patterns, and 1-year outcomes in patients with newly diagnosed non-valvular atrial fibrillation (NVAF). This report describes …

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Quantification of area at risk in acute myocardial infarction by tomographic imaging.

YUHJI FURUTANI, Toshiaki Shiigi, Yasuma Nakamura, Hiroshi Nakamura et autres

UNLABELLED: The purpose of this study was twofold: to validate, in a phantom heart model, a simple threshold technique for the quantification of defect size using 123I-15-(p-iodophenyl)-3-(R,S)-methyl pentadecanoic acid (BMIPP) imaging and to compare, in patients with acute myocardial infarction, defect size …

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PLATELET FORCE DEVELOPMENT IS SENSITIVE TO ASPIRIN-INDUCED ALTERATIONS IN CLOT STRUCTURE AND FUNCTION IN PATIENTS WITH CORONARY ARTERY DISEASE

Philip E. Greilich, Michael W. Carr, Sheryl L. Zekert, Masami Nakatsuka

[Effects of anteroseptal myocardial infarction on systolic and diastolic filling function of the right ventricle].

Takuya Yamagishi, Masaharu Ozaki, YUHJI FURUTANI, K Yamamoto et autres

To assess the effects of wall motion abnormalities of the anterior left ventricle and interventricular septum on right ventricular (RV) systolic and diastolic filling function, multiple-gated radionuclide angiography was performed at rest in 53 patients with previous anteroseptal myocardial infarction and 14 …

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Coronary artery spasm during cardiac angiography

Akira Satoh, Yasuo Matsuda, Hideaki Sakai, Masami Nakatsuka et autres

Unexpected occurrence of coronary artery spasm is sometimes observed during cardiac catheterization. We report here two cases of coronary artery spasm with hypotension and urticaria subsequent to administration of contrast material. The etiology of coronary artery spasm is discussed.

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Coronary collateral vessels in patients with previous myocardial infarction

Masami Nakatsuka, Yasuo Matsuda, Masaharu Ozaki, Hiroshi Ogawa et autres

To assess the degree of collateral vessels after myocardial infarction, coronary angiograms, left ventriculograms, and exercise thallium-201 myocardial scintigrams of 36 patients with previous myocardial infarction were reviewed. All 36 patients had total occlusion of infarct-related coronary artery and no more than …

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A METHOD OF RAPID SEQUENCE INDUCTION USING HIGH DOSE NARCOTICS AND VECURONIUM OR VECURONIUM AND PANCURONIUM IN PATIENTS WITH CORONARY ARTERY DISEASE

P. L. de Vena Franks, Masami Nakatsuka