Mitsumasa Sudo

Dr. Mitsumasa Sudo

orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 January 2023 in JACC: Cardiovascular Interventions
Verified
Journal Article
Closed access
TPTullio Palmerini
Tullio Palmerini
FSFrancesco Saia
Francesco Saia
WKWon-Keun Kim
Won-Keun Kim
MRMatthias Renker
Matthias Renker
AIALESSANDRO IADANZA
ALESSANDRO IADANZA
GSGregg W. Stone
Gregg W. Stone

13 May 2023 in Clinical Research in Cardiology
Verified
Journal Article
Open access
PDF file
MSMitsumasa Sudo
Mitsumasa Sudo
JSJasmin Shamekhi
Jasmin Shamekhi
AAAdem Aksoy
Adem Aksoy
BABaravan Al-Kassou
Baravan Al-Kassou
TTTetsu Tanaka
Tetsu Tanaka
SZSebastian Zimmer
Sebastian Zimmer
Background: Malnutrition is associated with adverse outcomes in patients with aortic stenosis. The Triglycerides × Total Cholesterol × Body Weight Index (TCBI) is a simple scoring model to evaluate the status of nutrition. However, the prognostic relevance of this index in patients undergoing transcatheter aortic valve replacement (TAVR) is unknown. This study aimed to evaluate the association of the TCBI with clinical outcomes in patients undergoing TAVR. Methods: A total of 1377 patients undergoing TAVR were evaluated in this study. The TCBI was calculated by the formula; triglyceride (mg/dL) × total cholesterol (mg/dL) × body weight (kg)/1000. The primary outcome was all-cause mortality within 3 years. Results: Patients with a low TCBI, based on a cut-off value of 985.3, were more likely to have elevated right atrial pressure (p = 0.04), elevated right ventricular pressure (p < 0.01), right ventricular systolic dysfunction (p < 0.01), tricuspid regurgitation ≥ moderate (p < 0.01). Patients with a low TCBI had a higher cumulative 3-year all-cause (42.3% vs. 31.6%, p < 0.01; adjusted HR 1.36, 95% CI 1.05–1.77, p = 0.02) and non-cardiovascular mortality (15.5% vs. 9.1%, p < 0.01; adjusted HR 1.95, 95% CI 1.22–3.13, p < 0.01) compared to those with a high TCBI. Adding a low TCBI to EuroSCORE II improved the predictive value for 3-year all-cause mortality (net reclassification improvement, 0.179, p < 0.01; integrated discrimination improvement, 0.005, p = 0.01). Conclusion: Patients with a low TCBI were more likely to have right-sided heart overload and exhibited an increased risk of 3-year mortality. The TCBI may provide additional information for risk stratification in patients undergoing TAVR. Graphical

16 December 2023 in Journal of Cardiovascular Computed Tomography
Verified
Journal Article
Closed access
TTTetsu Tanaka
Tetsu Tanaka
ASAtsushi Sugiura
Atsushi Sugiura
MSMax Schulz
Max Schulz
NWNihal Wilde
Nihal Wilde
JVJohanna Vogelhuber
Johanna Vogelhuber
MWMarcel Weber
Marcel Weber

19 March 2024 in Journal of the American Heart Association
Verified
Journal Article
Open access
PDF file
MMMasatsugu Miyagawa
Masatsugu Miyagawa
KKkeisuke kojima
keisuke kojima
KTKurara Takahashi
Kurara Takahashi
YNYuki Nakajima
Yuki Nakajima
SMShohei Migita
Shohei Migita
YOYasuo Okumura
Yasuo Okumura
Background: Nonobstructive general angioscopy (NOGA) can identify vulnerable plaques in the aortic lumen that serve as potential risk factors for cardiovascular events such as embolism. However, the association between computed tomography (CT) images and vulnerable plaques detected on NOGA remains unknown. Methods and Results: We investigated 101 patients (67±11 years; women, 13.8%) who underwent NOGA and contrast‐enhanced CT before or after 90 days in our hospital. On CT images, the aortic wall thickness, aortic wall area (AWA), and AWA in the vascular area were measured at the thickest point from the 6th to the 12th thoracic vertebral levels. Furthermore, the association between these measurements and the presence or absence of NOGA‐derived aortic plaque ruptures (PRs) at the same vertebral level was assessed. NOGA detected aortic PRs in the aortic lumens at 145 (22.1%) of the 656 vertebral levels. The presence of PRs was significantly associated with greater aortic wall thickness (3.3±1.7 mm versus 2.1±1.2 mm), AWA (1.33±0.68 cm 2 versus 0.89±0.49 cm 2 ), and AWA in the vascular area (23.2%±9.3% versus 17.2%±7.6%) ( P <0.001 for all) on the CT scans compared with the absence of PRs. The frequency of PRs significantly increased as the aortic wall thickness increased. Notably, a few NOGA‐derived PRs were detected on CT in near‐normal intima. Conclusions: The presence of NOGA‐derived PRs was strongly associated with increased aortic wall thickness, AWA, and AWA in the vascular area, measured using CT. NOGA can detect PRs in the intima that appear almost normal on CT scans.

28 February 2024 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
MSMiriam Silaschi
Miriam Silaschi
FCFranca Cattelaens
Franca Cattelaens
HAHossien Alirezaei
Hossien Alirezaei
JVJohanna Vogelhuber
Johanna Vogelhuber
SSSusanne Claudia Sommer
Susanne Claudia Sommer
NWNihal Wilde
Nihal Wilde
Background: Minimally invasive mitral valve surgery (MIC-MVS) has been established as preferred treatment of mitral regurgitation (MR), but mitral transcatheter edge-to-edge valve repair (M-TEER) is routinely performed in patients at high surgical risk and is increasingly performed in intermediate risk patients. Methods: From 2010 to 2021, we performed 723 M-TEER and 123 isolated MIC-MVS procedures. We applied a sensitivity analysis by matching age, left ventricular ejection fraction (LVEF), EuroSCORE II and etiology of MR. Results: Baseline characteristics showed significant differences in the overall cohort (p < 0.01): age 78.3 years vs. 61.5 years, EuroSCORE II 5.5% vs. 1.3% and LVEF 48.4% vs. 60.4% in M-TEER vs. MIC-MVS patients. Grade of MR at discharge was moderate/severe in 24.5% (171/697) in M-TEER vs. 6.5% (8/123) in MIC-MVS (p < 0.01). One-year survival was 91.5% (552/723) in M-TEER vs. 97.6% (95/123) in MIC-MVS (p = 0.04). A matching with 49 pairs (n = 98) showed comparable survival during follow-up, but a numerically higher mean mitral valve gradient of 4.1 mmHg (95% CI: 3.6–4.6) vs. 3.4 mmHg (95% CI: 3.0–3.8) in M-TEER (p = 0.04). Conclusions: Patients undergoing M-TEER had lower one-year survival than MIC-MVS, but differences disappeared after matching. Reduction in MR was less effective in M-TEER patients and postprocedural mitral valve gradients were higher.

19 April 2023 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
MSMitsumasa Sudo
Mitsumasa Sudo
VVVivian Vij
Vivian Vij
NWNihal Wilde
Nihal Wilde
TTTetsu Tanaka
Tetsu Tanaka
JVJohanna Vogelhuber
Johanna Vogelhuber
ASAtsushi Sugiura
Atsushi Sugiura
Before the development of transcatheter interventions, patients with mitral regurgitation (MR) and high surgical risk were often conservatively treated and subject to poor prognoses. We aimed to assess the therapeutic approaches and outcomes in the contemporary era. The study participants were consecutive high-risk MR patients from April 2019 to October 2021. Among the 305 patients analyzed, 274 (89.8%) underwent mitral valve interventions, whereas 31 (10.2%) received medical therapy alone. Of the interventions, transcatheter edge-to-edge mitral repair (TEER) was the most frequent (82.0% of overall), followed by transcatheter mitral valve replacement (TMVR) (4.6%). In patients treated with medical therapy alone, non-optimal morphologies for TEER and TMVR were shown in 87.1% and 65.0%, respectively. Patients undergoing mitral valve interventions experienced less frequent heart failure (HF) rehospitalization compared to those with medical therapy alone (18.2% vs. 42.0%, p < 0.01). Mitral valve intervention was associated with a lower risk of HF rehospitalization (HR 0.36 [0.18–0.74]) and an improved New York Heart Association class (p < 0.01). Most high-risk MR patients can be treated with mitral valve interventions. However, approximately 10% remained on medical therapy alone and were considered as unsuitable for current transcatheter technologies. Mitral valve intervention was associated with a lower risk of HF rehospitalization and improved functional status.