Masafumi Sugawara 研究室

主宰者：Masafumi Sugawara

千葉大学

AI 要約（直近 5 年の研究成果）

本研究室は、不整脈の診断と治療技術の開発に関する研究を行っています。特に、心臓から異常な電気活動が生じる場合に、その発生源の位置を正確に特定する方法を探究しています。電気生理学的な記録から得られる信号を解析し、心電図の波形パターンや特定の電気的指標を比較することで、異なる発生源の不整脈を区別する診断基準の確立に取り組んでいます。主な治療研究では、カテーテルアブレーション（カテーテルを使った焼灼治療）の改善に注力しており、特にパルス電界を用いた新しい焼灼技術に関して、接触圧力やパルス数といった物理パラメータと、生成される組織損傷の大きさの関係を動物実験で詳細に検証しています。豚の摘出心臓や人工心臓モデルを使い、治療効果を予測する新しい指標の開発と精度検証を行っています。さらに、植え込み型除細動器などの心臓デバイスの使用状況と、患者の臨床転帰との関連性についても調査しており、特に日本人患者を対象とした予後予測スコアの開発に力を入れています。これらの基礎研究と臨床データの統合を通じて、より安全で効果的な不整脈治療の実現を目指しています。

※ AI（Claude）が、公開されている論文要旨から研究の問い・手法・主要な発見を事実情報として抽出・再構成して自動生成しています。誤りを含む可能性があるため、正確性は研究室公式情報でご確認ください。

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研究成果（54 件）

[2026] PO-04-036 IMPROVED ACCURACY OF VENTRICULAR SCAR ACTIVATION MAPPING USING ULTRA-CLOSE UNIPOLAR ELECTROGRAMS WITH A NOVEL ULTRA-HIGH RESOLUTION CATHETER MAPPING SYSTEM
DOI: https://doi.org/10.1016/j.hrthm.2026.03.1055
[2026] PO-05-285 MONOPOLAR VS. BIPOLAR PULSED FIELD ABLATION AND THE EFFECT OF REPETITION: A PRECLINICAL STUDY
DOI: https://doi.org/10.1016/j.hrthm.2026.03.1460
[2026] PO-01-331 A PROSPECTIVE MULTICENTER STUDY OF MAPPING AND ABLATION OF FOCAL DRIVERS IN REPEAT ATRIAL FIBRILLATION ABLATION
DOI: https://doi.org/10.1016/j.hrthm.2026.03.1867
[2026] Improved precision of high b-value in vivo cardiac diffusion tensor imaging on a commercial ultrahigh performance gradient system
DOI: https://doi.org/10.1016/j.jocmr.2025.102231
[2026] Anatomical Approach from the Coronary Sinus of Valsalva for Para-Hisian Premature Ventricular Contractions: Safety and Outcomes
DOI: https://doi.org/10.64898/2026.01.12.26343961
[2026] Toward Reducing Disparities in Approval Timelines and Establishing Appropriate Reimbursement Frameworks for Catheter Ablation Systems in Europe, the United States, and Japan
DOI: https://doi.org/10.1111/jce.70272
[2026] Baseline QRS axis distinguishes para-Hisian PVC from outflow tract PVCs
DOI: https://doi.org/10.1016/j.hrthm.2026.04.044
[2026] AB-534498-005 RELATIONSHIP BETWEEN CONTACT IMPEDANCE AND PULSED FIELD ABLATION LESION SIZE USING MULTI-SPLINE ELECTRODE SYSTEM IN A SWINE BEATING-HEART MODEL
DOI: https://doi.org/10.1016/j.hrthm.2026.03.191
[2026] Reconsidering the Role of Nonsustained Ventricular Tachycardia in Primary Prevention of Sudden Cardiac Death　― Insights From the Nippon Storm Study ―
DOI: https://doi.org/10.1253/circj.cj-26-0300
[2026] PO-FPI-297 PROSPECTIVE VALIDATION OF REAL-TIME PREDICTION ACCURACY OF RADIOFREQUENCY LESION SIZE DURING HIGH-POWER AND SHORT-DURATION ABLATION USING A NOVEL FORMULA INCORPORATING CONTACT FORCE, RADIOFREQUENCY CURRENT AND APPLICATION TIME IN A SWINE BEATING HEART MODEL
DOI: https://doi.org/10.1016/j.hrthm.2026.03.339

続きを表示（残り 44 件）

[2026] PO-FPI-300 EFFECTS OF WAVEFORM AND IRRIGATION FLOW RATES ON THE ELECTRODE-TISSUE INTERFACE HEATING AND LESION SIZE DURING PULSED-FIELD ABLATION IN THE SWINE THIGH MUSCLE PREPARATION
DOI: https://doi.org/10.1016/j.hrthm.2026.03.342
[2026] PO-02-322 EPICARDIAL ABLATION WITH PULSED FIELD; EFFECTS OF MONOPOLAR VS. BIPOLAR AND THE ROLE OF FAT
DOI: https://doi.org/10.1016/j.hrthm.2026.03.704
[2026] PO-02-041 LIMITED PREDICTABILITY OF CONVENTIONAL ECG MORPHOLOGICAL CRITERIA OF PARA-HISIAN PREMATURE VENTRICULAR CONTRACTION -IMPACT OF BASELINE CARDIAC AXIS DEVIATION-
DOI: https://doi.org/10.1016/j.hrthm.2026.03.433
[2025] Post-pacing interval after failed anti-tachycardia pacing for scar-related ventricular tachycardia: implications for the location of the critical substrate
DOI: https://doi.org/10.1093/europace/euaf069
[2025] PO-06-143 EFFECTIVENESS OF THE HEARTINSIGHT SYSTEM IN PREDICTING HEART FAILURE WORSENING IN JAPANESE PATIENT
DOI: https://doi.org/10.1016/j.hrthm.2025.03.1684
[2025] Real-Time Prediction of Irreversible Lesion Size During Pulsed Field Ablation: Prospective Validation of a Novel Ablation Index Based on Contact Force and Number of Applications in a Swine Beating Heart Model
DOI: https://doi.org/10.1161/circep.125.013911
[2025] AB-499634-003 PREDICTING LESION DEPTH DURING PULSED FIELD ABLATION: PROSPECTIVE VALIDATION OF A NOVEL ABLATION INDEX BASED ON CONTACT FORCE AND NUMBER OF APPLICATIONS IN A SWINE BEATING HEART MODEL
DOI: https://doi.org/10.1016/j.hrthm.2025.03.011
[2025] PO-FP-014 CONTROLLING LESION SIZE USING AN IRRIGATED RADIOFREQUENCY BALLOON ELECTRODE CATHETER TO PRODUCE CONTINUOUS, TRANSMURAL CIRCUMFERENTIAL ATRIAL LESIONS
DOI: https://doi.org/10.1016/j.hrthm.2025.03.181
[2025] PO-04-168 ANATOMICAL APPROACH FROM THE CORONARY SINUS OF VALSALVA FOR PARA-HISIAN PREMATURE VENTRICULAR CONTRACTIONS: SAFETY AND OUTCOMES
DOI: https://doi.org/10.1016/j.hrthm.2025.03.1280
[2025] PO-04-107 COMPARISON OF PULSED FIELD ABLATION TO RADIOFREQUENCY ABLATION IN ABILITY TO PENETRATE SCARRED VENTRICULAR MYOCARDIUM USING A SWINE INFARCTED HEART MODEL: LESION DEPTH ASSESSMENT USING ABLATION INDEX FOR BOTH PULSED FIELD AND RADIOFREQUENCY ABLATION
DOI: https://doi.org/10.1016/j.hrthm.2025.03.1241
[2025] Differences Between the Unipolar Versus Bipolar Potential‐Based Activation Maps of Ventricular Premature Contractions Arising From Ventricular Outflow Tracts
DOI: https://doi.org/10.1111/jce.16647
[2025] Preclinical validation of an automated whole thoracic exam with 3D isotropic cine and delayed enhancement imaging (AutoCMR) for scar quantification and function analysis
DOI: https://doi.org/10.1016/j.jocmr.2024.101291
[2024] Pulsed Field Ablation Index–Guided Ablation for Lesion Formation: Impact of Contact Force and Number of Applications in the Ventricular Model
DOI: https://doi.org/10.1161/circep.123.012717
[2024] MP-483493-001 CREATION OF CONTINUOUS, TRANSMURAL LINEAR ATRIAL LESIONS BY PULSED FIELD ABLATION: ASSESSMENT OF OPTIMAL INTER-LESION DISTANCES FOR POINT-BY-POINT ABLATION SYSTEM
DOI: https://doi.org/10.1016/j.hrthm.2024.03.413
[2024] MP-483493-007 NEW FORMULA INCORPORATING CONTACT FORCE, RADIOFREQUENCY POWER AND APPLICATION TIME (FORCE-POWER-TIME INDEX) FOR HIGH-POWER AND SHORT-DURATION ABLATION PREDICTS LESION DEPTH IN A SWINE BEATING HEART MODEL
DOI: https://doi.org/10.1016/j.hrthm.2024.03.419
[2024] PO-01-160 FEASIBILITY OF ISCHEMIC SCAR HOMOGENIZATION WITH A NOVEL CONTACT FORCE ENABLED FOCAL PULSE FIELD ABLATION CATHETER
DOI: https://doi.org/10.1016/j.hrthm.2024.03.571
[2024] PO-06-084 VALUE OF THE RIGHT VENTRICULAR POST-PACING INTERVAL FROM FAILED ANTI-TACHYCARDIA PACING TO LOCALIZE THE LEFT VENTRICULAR TACHYCARDIA SUBSTRATE IN PATIENTS WITH STRUCTURAL HEART DISEASE
DOI: https://doi.org/10.1016/j.hrthm.2024.03.1710
[2024] Long-term prognosis and prognostic factors after primary prophylactic implantable cardioverter-defibrillator therapy
DOI: https://doi.org/10.1016/j.jjcc.2024.02.006
[2024] In vivo cardiac diffusion tensor imaging on an MR system featuring ultrahigh performance gradients with 200 mT/m maximum gradient strength
DOI: https://doi.org/10.1002/mrm.30308
[2024] Benefit of Implantable Cardioverter Defibrillator Use in Japanese Patients Based on Modified MADIT-ICD Benefit Score
DOI: https://doi.org/10.1002/ehf2.15081
[2024] Evaluation of Ablation Parameters to Predict Irreversible Lesion Size During Pulsed Field Ablation
DOI: https://doi.org/10.1161/circep.124.012814
[2024] PO-06-134 CONTROLLING ABLATION LESION SIZE BASED ON CONTACT FORCE AND NUMBER OF BURST PULSES DURING PULSED FIELD CATHETER ABLATION IN A SWINE BEATING HEART MODEL
DOI: https://doi.org/10.1016/j.hrthm.2024.03.1577
[2024] PO-03-145 LEFT ATRIAL BOX ISOLATION GUIDED BY FORCE-POWER-TIME FORMULA (ABLATION INDEX): HIGH PREVALENCE OF EPICARDIAL CONDUCTION THROUGH THE LEFT ATRIAL ROOF IN ATRIAL FIBRILLATION PATIENTS
DOI: https://doi.org/10.1016/j.hrthm.2024.03.967
[2024] Interaction of left ventricular size with the outcome of cardiac resynchronization therapy in Japanese patients
DOI: https://doi.org/10.1002/clc.24267
[2024] PREDICTED BENEFIT OF AN IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR: THE MODIFIED MADIT-ICD BENEFIT SCORE
DOI: https://doi.org/10.1016/s0735-1097(24)02166-1
[2024] Paced QRS morphology mimicking complete left bundle branch block induced by right ventricular pacing is associated with pacing‐induced cardiomyopathy
DOI: https://doi.org/10.1111/jce.16229
[2023] Effects of Contact Force on Lesion Size During Pulsed Field Catheter Ablation: Histochemical Characterization of Ventricular Lesion Boundaries
DOI: https://doi.org/10.1161/circep.123.012026
[2023] Deep learning-based coronary computed tomography analysis to predict functionally significant coronary artery stenosis
DOI: https://doi.org/10.1007/s00380-023-02288-z
[2023] Junctional rhythm during cryoablation for typical atrioventricular nodal reentrant tachycardia
DOI: https://doi.org/10.1111/jce.15979
[2023] Antithrombotic Regimen After Percutaneous Left Atrial Appendage Closure　― A Real-World Study ―
DOI: https://doi.org/10.1253/circj.cj-22-0687
[2023] PO-03-105 REDUCTION OF FAR-FIELD POTENTIALS USING CLOSE UNIPOLAR ELECTROGRAMS IN A NEW ULTRA-HIGH RESOLUTION CATHETER MAPPING SYSTEM: EVALUATION IN A SWINE ATRIAL LINEAR LESION MODEL
DOI: https://doi.org/10.1016/j.hrthm.2023.03.1018
[2023] AB-452672-1 EFFECTS OF ELECTRODE CONTACT FORCE ON LESION SIZE PRODUCED BY PULSED FIELD ABLATION
DOI: https://doi.org/10.1016/j.hrthm.2023.03.394
[2023] Late potentials on signal-averaged electrocardiography eliminated by successful catheter ablation of premature ventricular contractions in a nonischemic cardiomyopathy patient
DOI: https://doi.org/10.1016/j.hrcr.2023.03.006
[2023] AB-452663-2 LEFT ATRIAL BOX ISOLATION GUIDED BY FORCE-POWER-TIME FORMULA (ABLATION INDEX): HIGH PREVALENCE OF EPICARDIAL CONDUCTION VIA SEPTOPULMONARY BUNDLE IN ATRIAL FIBRILLATION PATIENTS
DOI: https://doi.org/10.1016/j.hrthm.2023.03.306
[2023] Right ventricular systolic function as a predictor of appropriate ICD therapy
DOI: https://doi.org/10.1007/s00392-023-02343-9
[2023] Abstract 15998: Impact of Atrial Fibrillation Detected by Cardiac Implantable Electronic Devices on Embolic Stroke Events in Cancer Patients
DOI: https://doi.org/10.1161/circ.148.suppl_1.15998
[2023] Abstract 17542: Impact of New-Onset Atrial Fibrillation Detected by Cardiac Implantable Electronic Devices on Embolic Stroke Events
DOI: https://doi.org/10.1161/circ.148.suppl_1.17542
[2022] Prediction of Reverse-Remodeling after Cardiac Resynchronization Therapy Using the Intrinsic Myocardial Conduction Velocity
DOI: https://doi.org/10.2139/ssrn.4011847
[2022] Association between right ventricular dysfunction and appropriate icd therapy
DOI: https://doi.org/10.1093/europace/euac053.460
[2022] Subcutaneous implantable cardioverter-defibrillator implantation in a patient with an axillary bifemoral bypass and past sternectomy
DOI: https://doi.org/10.1016/j.hrcr.2022.10.019
[2022] PO-677-07 RIGHT VENTRICULAR SYSTOLIC FUNCTION AS A PREDICTOR OF APPROPRIATE IMPLANTABLE CARDIOVERTER DEFIBRILLATOR THERAPY
DOI: https://doi.org/10.1016/j.hrthm.2022.03.473
[2022] PO-688-03 PROGNOSTIC IMPLICATIONS OF NON-SUSTAINED VENTRICULAR TACHYCARDIAS IN SEVERE HEART FAILURE PATIENTS AFTER PROPHYLACTIC DEFIBRILLATOR IMPLANTATION
DOI: https://doi.org/10.1016/j.hrthm.2022.03.572
[2021] B-PO03-148 RISK STRATIFICATION FOR ISCHEMIC STROKE AND MAJOR BLEEDING IN PATIENTS WITHOUT ATRIAL FIBRILLATION - VALIDITY OF CHA2DS2-VASC AND HAS-BLED SCORE
DOI: https://doi.org/10.1016/j.hrthm.2021.06.621
[2021] Pathophysiological background and prognosis of common atrial flutter in non-elderly patients: Comparison to Atrial Fibrillation
DOI: https://doi.org/10.1016/j.jjcc.2021.05.008

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AI 要約（直近 5 年の研究成果）

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関連研究室(8 件)

研究成果（54 件）

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