686 results on '"T. Mizukami"'
Search Results
102. Some contributions to the influence of the autonomic nervous system on the experimental induction of cancer of the stomach
- Author
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T, Mizukami, O, Takamatsu, and K, Miwa
- Subjects
Male ,Hyperplasia ,Postoperative Complications ,Stomach Neoplasms ,Stomach ,Carcinogens ,Animals ,Splanchnic Nerves ,Adenocarcinoma ,Vagotomy ,Autonomic Nervous System ,Guanidines ,Rats - Published
- 1970
103. [The problem of carcinoma recurrence]
- Author
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T, Mizukami
- Subjects
Adult ,Male ,Gastrectomy ,Humans ,Female ,Middle Aged ,Neoplasm Metastasis ,Neoplasm Recurrence, Local ,Prognosis ,Mononuclear Phagocyte System ,Aged - Published
- 1965
104. [Histogenesis of gastric cancer]
- Author
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M, URABE, T, MIZUKAMI, K, YASHUI, M, YAMAMOTO, and R, TKANO
- Subjects
Stomach Neoplasms ,Humans - Published
- 1961
105. [Experimental studies on the influence of hormones on so-called non-hormonally dependent tumors]
- Author
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T, Mizukami, S, Kozaka, and I, Nishio
- Subjects
Cholesterol ,Adrenal Cortex Hormones ,Adrenal Glands ,Benz(a)Anthracenes ,Animals ,Castration ,Diethylstilbestrol - Published
- 1969
106. [Surgical treatment of glycogenosis]
- Author
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S, Kozaka, I, Nishio, and T, Mizukami
- Subjects
Blood Glucose ,Male ,Vena Cava, Inferior ,Glycogen Storage Disease ,Liver Glycogen ,Acetone ,Cholesterol ,Mesenteric Veins ,Liver ,Lactates ,Methods ,Humans ,Child ,Pyruvates - Published
- 1969
107. [Effect of Inosine on radiation damage, especially on leukopenia]
- Author
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T, Moriyama, H, Takaki, T, Mizukami, T, Aoki, and S, Noguchi
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Adult ,Male ,Cobalt Isotopes ,Hypoxanthines ,Neoplasms ,Humans ,Female ,Leukopenia ,Middle Aged ,Aged - Published
- 1966
108. [Surgical jaundice]
- Author
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T, Mizukami and A, Noda
- Subjects
Bile Duct Neoplasms ,Cholelithiasis ,Humans ,Jaundice ,Female ,Middle Aged - Published
- 1967
109. Metabolic responses of the liver of human beings and other mammals to deprivation of portal blood supply
- Author
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K, Ozawa, O, Kitamura, Y, Yamaoka, T, Kamano, and T, Mizukami
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Adult ,Male ,Cell Membrane Permeability ,Time Factors ,L-Lactate Dehydrogenase ,Portal Vein ,Fatty Acids ,Alanine Transaminase ,Mitochondria, Liver ,Middle Aged ,Adaptation, Physiological ,Oxidative Phosphorylation ,Rats ,Portal System ,Glutamate Dehydrogenase ,Liver ,Malate Dehydrogenase ,Animals ,Humans ,Female ,Aspartate Aminotransferases ,Rabbits ,Ligation ,Aged - Published
- 1973
110. [A contribution to the surgical treatment of high situated carcinoma of the bile duct]
- Author
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S, Kozaka, M, Chikuda, and T, Mizukami
- Subjects
Male ,Portal Vein ,Liver Diseases ,Alanine Transaminase ,Bilirubin ,Hepatic Duct, Common ,Adenocarcinoma ,Middle Aged ,Alkaline Phosphatase ,Gold Isotopes ,Adenocarcinoma, Papillary ,Cholesterol ,Dogs ,Jejunum ,Bile Duct Neoplasms ,Animals ,Humans ,Urobilinogen ,Aspartate Aminotransferases ,Radionuclide Imaging ,Cholangiography ,Aged - Published
- 1967
111. Some contributions to the surgical treatment of cancer
- Author
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T. Mizukami
- Subjects
Adult ,Male ,Cancer Research ,medicine.medical_specialty ,business.industry ,General surgery ,Cancer ,General Medicine ,Middle Aged ,medicine.disease ,Oncology ,Neoplasms ,medicine ,Humans ,Female ,Radiography, Thoracic ,Neoplasm Metastasis ,Neoplasm Recurrence, Local ,business ,Surgical treatment - Published
- 1965
112. Some contributions to cancer control by the stimulation of the physiological protective power of the organism
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S. Tsunamura and T. Mizukami
- Subjects
Cancer Research ,Neoplasms therapy ,Stimulation ,Antineoplastic Agents ,General Medicine ,Biology ,Organotherapy ,Oncology ,Cancer control ,Neoplasms ,Immunology ,Organism ,Spleen - Published
- 1962
113. [On the calculating graph of exposure dose and irradiation times for the definite tumor dose]
- Author
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Y, Ono, F, Toyozumi, T, Mizukami, H, Takagi, and S, Noguchi
- Subjects
Cobalt Isotopes ,Humans ,Radiotherapy Dosage - Published
- 1967
114. On the adaptation of blood and circulatory organs caused by intermittent low-pressure stimuli
- Author
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G, Ueda, T, Motoyama, A, Sakai, Y, Yanagidaira, and T, Mizukami
- Subjects
Male ,Time Factors ,Altitude ,Heart Ventricles ,Body Weight ,Heart ,Growth ,Organ Size ,Adaptation, Physiological ,Rats ,Electrocardiography ,Atmospheric Pressure ,Oxygen Consumption ,Hematocrit ,Blood Circulation ,Hemoglobinometry ,Animals - Published
- 1969
115. [Histochemical metabolic findings in cancer of stomach]
- Author
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T, MIZUKAMI
- Subjects
Stomach Neoplasms ,Neoplasms - Published
- 1958
116. [Studies on pancreatic scanning by means of 75Se-selenomethionine]
- Author
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T, Mizukami
- Subjects
Adult ,Male ,Radioisotopes ,Color ,Pancreatic Diseases ,Middle Aged ,Radiography ,Selenium ,Methionine ,Animals ,Humans ,Female ,Rabbits ,Radionuclide Imaging ,Aged - Published
- 1967
117. [Cancer and endocrine metabolism with special reference to pituitary-adrenal system function]
- Author
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T, Mizukami, T, Nishio, A, Kobayashi, K, Shima, and K, Fujii
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Male ,Pituitary Gland ,Adrenal Glands ,Animals ,Pituitary-Adrenal System ,Estrogens ,Castration ,Neoplasms, Experimental ,Rats - Published
- 1968
118. [Immunotherapy of cancer. Experiments in the modification of tumor antigenicity]
- Author
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T, Mizukami and Y, Takamura
- Subjects
Adult ,Male ,Lung Neoplasms ,Esophageal Neoplasms ,L-Lactate Dehydrogenase ,Lymphoma ,Rectal Neoplasms ,Breast Neoplasms ,Middle Aged ,Rats ,Antigen-Antibody Reactions ,Pancreatic Neoplasms ,Stomach Neoplasms ,Neoplasms ,Intestinal Neoplasms ,Uterine Neoplasms ,Methods ,Animals ,Humans ,Female ,Immunotherapy ,gamma-Globulins ,Aged - Published
- 1971
119. Quantitative analysis of respiratory enzymes of mitochondria isolated from liver tissue of patients
- Author
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K, Ozawa, O, Kitamura, Y, Yamaoka, T, Mizukami, and T, Kamano
- Subjects
Adult ,Male ,Adolescent ,L-Lactate Dehydrogenase ,Bilirubin ,Mitochondria, Liver ,Hydrogen-Ion Concentration ,Middle Aged ,Alkaline Phosphatase ,Oxidative Phosphorylation ,Oxygen Consumption ,Cytochromes ,Humans ,Female ,Aspartate Aminotransferases ,Aged - Published
- 1973
120. [Body defense against cancer and salivary gland hormones]
- Author
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T, Mizukami
- Subjects
Mice ,Neoplasms ,Pituitary Function Tests ,Animals ,Humans ,Breast Neoplasms ,Female ,Middle Aged ,Injections, Intramuscular ,Carbon ,Hormones ,Salivary Glands - Published
- 1969
121. [Contribution to the pathogenesis and early diagnosis of stomach cancer]
- Author
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T, MIZUKAMI
- Subjects
Early Diagnosis ,Stomach Neoplasms ,Humans - Published
- 1959
122. [Development of breast cancer and its treatment by endocrine change]
- Author
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M, URABE, T, MIZUKAMI, S, YAMAZAKI, E, YAMAMOTO, K, KAWAI, and T, HIROSE
- Subjects
Humans ,Breast Neoplasms ,Hormones - Published
- 1962
123. [Cancer of the colon and rectum]
- Author
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T, Mizukami
- Subjects
Adult ,Male ,Rectal Neoplasms ,Colonic Neoplasms ,Humans ,Female ,Middle Aged - Published
- 1966
124. [Nursing plan in rehabilitation of amputation patients (with special reference to amputation of the lower extremities)]
- Author
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T, Mizukami
- Subjects
Leg ,Rehabilitation ,Amputation, Surgical ,Patient Care Planning - Published
- 1972
125. [Dry liver resection using vital fixation of the liver segment]
- Author
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T, Mizukami, S, Kozaka, and K, Negata
- Subjects
Male ,Glycols ,Carcinoma, Hepatocellular ,Injections, Intravenous ,Liver Neoplasms ,Methods ,Hepatectomy ,Humans ,Hepatic Veins ,Middle Aged ,Polyethylenes - Published
- 1972
126. Operative Pancreatography
- Author
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T. Taniguchi, I. Miyazaki, Y. Nishida, K. Miwa, H. Fujita, T. Nagakawa, and T. Mizukami
- Subjects
Gastroenterology - Published
- 1969
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127. Some notes on the potato tuber parasitic nematode, Pratylenchus sp
- Author
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T. Mizukami and T. Yoroo
- Subjects
Horticulture ,Nematode ,Biology ,Pratylenchus ,biology.organism_classification - Published
- 1956
- Full Text
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128. Development of a novel multiplex digital PCR-based method for the detection of HTLV-1 proviral deletion.
- Author
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Hiraga K, Tezuka K, Nagata K, Koh KR, Nakamura H, Sagara Y, Sobata R, Satake M, Tanio M, Hasegawa H, Saito M, Miura K, Mizukami T, Hamaguchi I, and Kuramitsu M
- Abstract
The human T-cell leukemia virus type 1 (HTLV-1), a retrovirus, integrates into host DNA and causes adult T-cell leukemia/lymphoma (ATL) in some individuals. Two types of defective proviruses, Type 1 and Type 2, are often observed in ATL cells. Here, we developed a 3-plex digital PCR (dPCR) method to detect HTLV-1 proviral deletions by comparing the ratios of copy numbers quantified using specific primer-probes for the LTR, pol, and pX regions. We analyzed HTLV-1-positive asymptomatic carriers (ACs) and AC samples at high risk for developing ATL due to high proviral load (ATL high-risk (HR) ACs) using dPCR. Deletions were identified in 11.8 % (4/34, all Type 1) of ACs and 33.3 % (7/21, Type 1:1, Type 2:6) of ATL HR ACs. dPCR analysis revealed that in three ATL samples, all exhibited Type 1 defective characteristics, and two showed extremely low ratios in the pol region. Clonality analysis of these two samples revealed high monoclonality, indicating monoclonal expansion of ATL cells with defective proviruses. These findings demonstrate that our method effectively detects defective proviruses in both ACs and ATL, providing a valuable tool for understanding the genomic characteristics of proviruses in these conditions., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
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129. Evaluating the Effect of Image Enhancement on Diagnostic Reliability in Dry Eye Disease Using a Portable Imaging Device.
- Author
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Mizukami T, Sato S, Asai K, Inoue T, Shimizu E, Shimazaki J, and Shimomura Y
- Abstract
Background: This study aimed to evaluate the impact of image enhancement techniques on the interobserver reliability of tear break-up time (TBUT), tear meniscus height (TMH), corneal fluorescein staining (CFS) scoring, and conjunctivochalasis detection using the Smart Eye Camera (SEC), a portable device for anterior segment examination., Methods: A retrospective analysis was conducted on video recordings captured by the SEC from 46 patients with dry eye disease (DED). Separate sets of images were created for each level of enhancement: unenhanced (G0), mildly enhanced (G3), and strongly enhanced (G7). These sets were not intermixed, ensuring that each enhancement level was assessed independently. Three observers-two DED specialists and one general ophthalmologist-assessed TBUT, TMH, CFS scores, and conjunctivochalasis. Interobserver reliability was evaluated using intraclass correlation coefficients (ICCs) for each image set., Results: Interobserver reliability for CFS scores significantly improved with G3, yielding an ICC of 0.8413. In contrast, G7 improved reliability for TBUT measurements (ICC = 0.7381), but led to a notable decrease in reliability for both CFS scoring (ICC = 0.2259) and conjunctivochalasis detection (ICC = 0.0786). Furthermore, the assessment of TMH demonstrated a progressive decline in accuracy with increasing levels of image enhancement., Conclusions: Image enhancement using the SEC improved the diagnostic consistency of dry eye specialists and general ophthalmologists, especially for TBUT and CFS assessments. However, excessive enhancement may obscure key diagnostic features, indicating the need for careful optimization of image processing techniques depending on the diagnostic focus.
- Published
- 2024
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130. Safety of Oral Food Challenges for Individuals with Low Levels of Cow's Milk-Specific Immunoglobulin E Antibodies.
- Author
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Yoshida T, Kido J, Ogata M, Watanabe S, Nishi N, Shimomura S, Hirai N, Tanaka K, Yanai M, Mizukami T, and Nakamura K
- Abstract
Introduction: Cow's milk (CM) is one of the most common food allergens in Japan. The oral food challenge (OFC) of CM is important for the definite diagnosis of children with CM allergy and it is recommended to be actively and safely performed in individuals with low CM-sIgE levels. This study aimed to investigate the safety of low-dose CM-OFC in individuals with low CM-sIgE levels and discuss the prognostic factors and appropriate approaches for assessing the starting doses of CM-OFC in these individuals., Methods: We retrospectively analyzed 6,929 OFC tests conducted between January 1, 2017 and December 31, 2021; of which, 1,390 were CM-OFC tests. The characteristics, OFC-positive rates, CM loading, and related factors were analyzed in 138 cases involving low CM-sIgE levels. Stepwise OFC tests were conducted according to the FA guidelines in Japan using an open and unblinded method., Results: Among 138 individuals with low CM-sIgE levels, 110 (79.7%) passed the OFC test without any symptoms. Among the cases with OFC-positive status, 50.0% (14/28) cases showed symptoms with low-dose OFC (30-105 mg CM protein). Moreover, complete CM elimination was associated with a significantly high OFC-positive rate, and 60.0% (12/20) of the cases involving complete CM elimination showed symptoms with low-dose OFC., Conclusion: Eighty percent of the patients with low CM-sIgE levels safely completed the OFC test. Nevertheless, careful observation is essential during low-dose OFC test in cases with low CM-sIgE levels, especially in the cases with complete elimination. The starting dose of the OFC test should be re-evaluated and modified using baked milk or a lower dose of CM to ensure safety and early outgrowth of CM allergy., (S. Karger AG, Basel.)
- Published
- 2024
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131. The role of advanced physiological guidance in contemporary coronary artery disease management.
- Author
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Munhoz D, Ikeda K, Bouisset F, Sakai K, Tajima A, Mizukami T, Sonck J, Johnson NP, and Collet C
- Subjects
- Humans, Clinical Decision-Making, Disease Management, Coronary Artery Disease therapy, Coronary Artery Disease physiopathology, Percutaneous Coronary Intervention methods, Fractional Flow Reserve, Myocardial physiology
- Abstract
Purpose of Review: This review evaluates the emerging role of the pullback pressure gradient (PPG) as a standardized metric for assessing coronary artery disease (CAD) patterns and its implications for clinical decision-making when managing patients undergoing percutaneous coronary interventions (PCIs). By integrating PPG with existing physiological assessments, this review highlights the potential benefits of PPG in predicting treatment outcomes and refining therapeutic strategies for CAD., Recent Findings: Recent studies, particularly the PPG Global study have demonstrated a strong correlation between PPG values and post-PCI outcomes, revealing that focal disease is associated with improved fractional flow reserve (FFR) and lower rates of adverse events than vessels with diffuse disease (low PPG). Additionally, PPG has been linked to specific atherosclerotic plaque characteristics, indicating its utility in identifying high-risk plaques. The integration of PPG with advanced imaging techniques further enhances the understanding of CAD patterns and their implications for treatment planning., Summary: The PPG represents a significant advancement in the management of CAD, providing a reproducible and objective assessment of coronary artery disease patterns that can inform clinical decision-making. As research continues to explore the relationship among PPG, atherosclerotic characteristics, and patient outcomes, its integration into routine practice is expected to improve the effectiveness of PCI and optimize patient management strategies. Future studies are warranted to establish specific PPG thresholds and further investigate its potential in identifying vulnerable plaques and guiding treatment decisions., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)
- Published
- 2024
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132. Validation of virtual fractional flow reserve pullback curves.
- Author
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Seki R, Collison D, Ikeda K, Sonck J, Munhoz D, Bertolone DT, Ko B, Maeng M, Otake H, Koo BK, Storozhenko T, Bouisset F, Belmonte M, Leone A, Shumkova M, Ford TJ, Mahendiran T, Berry C, De Bruyne B, Oldroyd K, Sakai K, Mizukami T, and Collet C
- Subjects
- Humans, Female, Male, Middle Aged, Aged, Reproducibility of Results, Treatment Outcome, Coronary Vessels physiopathology, Coronary Vessels diagnostic imaging, Time Factors, Prospective Studies, Angina Pectoris physiopathology, Angina Pectoris therapy, Angina Pectoris diagnostic imaging, Angina Pectoris etiology, Severity of Illness Index, Surveys and Questionnaires, Fractional Flow Reserve, Myocardial, Coronary Artery Disease physiopathology, Coronary Artery Disease diagnostic imaging, Coronary Artery Disease therapy, Predictive Value of Tests, Coronary Angiography, Percutaneous Coronary Intervention adverse effects, Cardiac Catheterization
- Abstract
Background: Angiography-derived fractional flow reserve (virtual FFR) has shown excellent diagnostic performance compared with wire-based FFR. However, virtual FFR pullback curves have not been validated yet., Objectives: To validate the accuracy of virtual FFR pullback curves compared to wire-based FFR pullbacks and to assess their clinical utility using patient-reported outcomes., Methods: Pooled analysis of two prospective studies, including patients with hemodynamically significant (FFR ≤ 0.80) coronary artery disease (CAD). Virtual and wire-based FFR pullbacks were compared to assess the accuracy of virtual pullbacks to characterize CAD as focal or diffuse. Pullbacks were analyzed visually and quantitatively using the pullback pressure gradient (PPG). Patients underwent PCI, and the Seattle Angina Questionnaire (SAQ) was administered at 3-month follow-up., Results: A total of 298 patients (300 vessels) with both virtual and wire-based pullbacks who underwent PCI were included in the analysis. The mean age was 61.8 ± 8.8, and 15% were female. The agreement on the visual adjudication of the CAD pattern was fair (Cohen's Kappa: 0.31, 95% confidence interval: 0.18-0.45). The mean PPG were 0.65 ± 0.18 from virtual pullbacks and 0.65 ± 0.13 from wire-based pullbacks (r = 0.68, mean difference 0, limits of agreement -0.27 to 0.28). At follow-up, patients with high virtual PPG (>0.67) had higher SAQ angina frequency scores (i.e., less angina) than those with low virtual PPG (SAQ scores 92.0 ± 14.3 vs. 85.5 ± 23.1, p = 0.022)., Conclusion: Virtual FFR pullback curves showed moderate agreement with wire-based FFR pullbacks. Nonetheless, patients with focal disease based on virtual PPG reported greater improvement in angina after PCI., (© 2024 Wiley Periodicals LLC.)
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- 2024
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133. Deterioration of Vocal Cord Paralysis after COVID-19 Infection in Multiple System Atrophy.
- Author
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Takeuchi Y, Masuda T, Kimura N, Mizukami T, Yoshinaga K, Hirano T, Suzuki M, and Matsubara E
- Subjects
- Humans, Male, Aged, Middle Aged, SARS-CoV-2, Female, Tracheostomy, Vocal Cord Paralysis etiology, Vocal Cord Paralysis diagnosis, Multiple System Atrophy complications, COVID-19 complications
- Abstract
Multiple system atrophy (MSA) is a progressive neurodegenerative disease that often causes vocal cord paralysis (VCP), Parkinsonism, cerebellar ataxia, and autonomic dysfunction. VCP is the most fatal symptom that affects the prognosis of patients with MSA. Coronavirus disease 2019 (COVID-19) is often associated with neurological complications and it has recently been reported to induce VCP in patients without neurodegenerative diseases. We herein present two cases of patients with MSA in whom VCP worsened after COVID-19 and this led to the need to perform emergency tracheostomies. As VCP may deteriorate after COVID-19 in patients with MSA, it is important to prevent COVID-19 in these patients and closely monitor such patients for any signs of VCP deterioration post-infection to improve their prognosis.
- Published
- 2024
- Full Text
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134. Prognostic Impact of Culprit Lesion Calcified Nodule After Emergency Coronary Intervention: A TACTICS Registry Subanalysis.
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Hada M, Kakuta T, Sugiyama T, Hoshino M, Yonetsu T, Usui E, Hanyu Y, Nagamine T, Nogami K, Ueno H, Matsuda K, Sayama K, Setoguchi M, Tahara T, Sakamoto T, Mineo T, Kobayashi N, Takano M, Kondo S, Wakabayashi K, Suwa S, Dohi T, Mori H, Kimura S, Mitomo S, Nakamura S, Higuma T, Yamaguchi J, Natsumeda M, Ikari Y, Yamashita J, Mizukami T, Yamamoto MH, Sasano T, and Shinke T
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- 2024
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135. Predictors of Optical Coherence Tomography-Defined Calcified Nodules in Patients With Acute Coronary Syndrome - A Substudy From the TACTICS Registry.
- Author
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Sugiyama T, Kakuta T, Hoshino M, Hada M, Yonetsu T, Usui E, Hanyu Y, Nagamine T, Nogami K, Ueno H, Matsuda K, Sayama K, Sakamoto T, Kobayashi N, Takano M, Kondo S, Wakabayashi K, Suwa S, Dohi T, Mori H, Kimura S, Mitomo S, Nakamura S, Higuma T, Yamaguchi J, Natsumeda M, Ikari Y, Yamashita J, Sambe T, Yasuhara S, Mizukami T, Yamamoto MH, Sasano T, and Shinke T
- Subjects
- Humans, Aged, Male, Female, Middle Aged, Aged, 80 and over, Prospective Studies, Percutaneous Coronary Intervention, Vascular Calcification diagnostic imaging, Calcinosis diagnostic imaging, Diabetes Mellitus epidemiology, Predictive Value of Tests, Acute Coronary Syndrome diagnostic imaging, Acute Coronary Syndrome therapy, Tomography, Optical Coherence, Registries
- Abstract
Background: Recent studies suggest that the presence of calcified nodules (CN) is associated with worse prognosis in patients with acute coronary syndrome (ACS). We investigated clinical predictors of optical coherence tomography (OCT)-defined CN in ACS patients in a prospective multicenter registry., Methods and Results: We investigated 695 patients enrolled in the TACTICS registry who underwent OCT assessment of the culprit lesion during primary percutaneous coronary intervention. OCT-CN was defined as calcific nodules erupting into the lumen with disruption of the fibrous cap and an underlying calcified plate. Compared with patients without OCT-CN, patients with OCT-CN (n=28) were older (mean [±SD] age 75.0±11.3 vs. 65.7±12.7 years; P<0.001), had a higher prevalence of diabetes (50.0% vs. 29.4%; P=0.034), hemodialysis (21.4% vs. 1.6%; P<0.001), and Killip Class III/IV heart failure (21.4% vs. 5.7%; P=0.003), and a higher preprocedural SYNTAX score (median [interquartile range] score 15 [11-25] vs. 11 [7-19]; P=0.003). On multivariable analysis, age (odds ratio [OR] 1.072; P<0.001), hemodialysis (OR 16.571; P<0.001), and Killip Class III/IV (OR 4.466; P=0.004) were significantly associated with the presence of OCT-CN. In non-dialysis patients (n=678), age (OR 1.081; P<0.001), diabetes (OR 3.046; P=0.014), and Killip Class III/IV (OR 4.414; P=0.009) were significantly associated with the presence of OCT-CN., Conclusions: The TACTICS registry shows that OCT-CN is associated with lesion severity and poor clinical background, which may worsen prognosis.
- Published
- 2024
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136. Reply to the letter regarding 'Prognostic value of left atrial reverse remodelling in patients hospitalized with ADHF'.
- Author
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Nagumo S, Ebato M, Mizukami T, Iso Y, and Suzuki H
- Published
- 2024
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137. The Efficacy and Safety of Stepwise Oral Food Challenge in Children with Cow's Milk Allergy.
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Ogata M, Kido J, Watanabe S, Yoshida T, Nishi N, Shimomura S, Hirai N, Tanaka K, Mizukami T, Yanai M, and Nakamura K
- Abstract
Introduction: Stepwise oral food challenge (OFC) tests begin with low doses of allergens and progress to full doses. We previously reported the safety and efficacy of stepwise OFC for reintroducing hen eggs. In this study, we discuss its application for cow's milk (CM) allergy., Methods: We included 927 children (median age, 3.2 years) who underwent CM-OFC between 2017 and 2021. The target challenge dose was classified as low (<10 mL), middle (≥10 mL but <100 mL), or full. When participants reacted to the low dose, they underwent a very low-dose OFC using baked milk or <1 mL of CM., Results: Positive reactions occurred in 210 cases (22.7%), including 69 anaphylactic reactions (7.4%). A lower target dose resulted in more positive OFC results (p < 0.001) and anaphylaxis (p = 0.001). The lower dose group included more children with complete elimination of CM (p < 0.001), with numerous histories of anaphylaxis induced by CM (p < 0.001), and higher levels of total IgE (p = 0.033) and CM-sIgE (p < 0.001). A multivariate analysis indicated that in the low-dose-OFC group, higher CM-sIgE levels (p = 0.034), younger age (p = 0.005), and complete elimination of CM (p = 0.002) were associated with positive OFC results., Conclusion: The stepwise OFC could reintroduce small amounts of CM, even in cases with high CM-sIgE levels or a history of anaphylaxis. Performing CM-OFC at younger ages, specifically from infancy, with very low doses, might facilitate the safe reintroduction of CM., (© 2024 S. Karger AG, Basel.)
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- 2024
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138. Comparative Analysis of Verapamil Pharmacokinetics: Evaluating the Impact of Simple Suspension and Crushing Administration Methods.
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Kumagai S, Sambe T, Shibata K, Mizukami T, Morohoshi H, Ryu K, Yamazaki T, Takenoshita S, Matsukawa S, Goibuchi S, Uchida N, Kurata N, and Hida N
- Abstract
Background/Objective: It is not uncommon for elderly patients to experience difficulties with feeding and swallowing. In the simple suspension method, tablets are dissolved and suspended in warm water without prior crushing or decapsulation, and then administered via a tube. Despite the prevalence of this method, the pharmacokinetics of suspended tablet dosage forms remain poorly understood. Methods: Verapamil was employed in dissolution tests following both the simple suspension and crushing methods. A pharmacokinetics study was conducted on healthy adult males. Results : The resultant dissolution profiles from the two methods exhibited notable dissimilarities. Drug release from the crushed product commenced earlier than that from the simple suspension and intact tablet. Furthermore, the area under the curve for verapamil during the initial 24 h period was 1.7 and 1.3 times greater in the crushed and simple suspension groups, respectively, than in the tablet group. Conclusions : The crushing and simple suspension methods are safe techniques for administering medications to patients with dysphagia, thereby preventing aspiration. Nevertheless, the processing of medications may result in an increased frequency of adverse effects. It is recommended that the processing of medicines prior to administration be avoided.
- Published
- 2024
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139. Simplification of continuous intracoronary thermodilution.
- Author
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Mahendiran T, Fawaz S, Viscusi M, Keulards D, Crooijmans C, Jansen TPJ, Everaars H, Gallinoro E, Candreva A, Bouisset F, Mizukami T, Bertolone D, Belmonte M, Seki R, Svanerud J, Sonck J, Wilgenhof A, Keeble TR, Damman P, Knaapen P, Collet C, Pijls NHJ, and De Bruyne B
- Subjects
- Humans, Male, Female, Middle Aged, Aged, Coronary Vessels diagnostic imaging, Coronary Vessels physiopathology, Coronary Artery Disease physiopathology, Coronary Artery Disease diagnostic imaging, Vascular Resistance physiology, Reproducibility of Results, Microcirculation physiology, Cardiac Catheterization methods, Thermodilution methods, Coronary Circulation physiology
- Abstract
Background: Continuous intracoronary thermodilution with saline allows for the accurate measurement of volumetric blood flow (Q) and absolute microvascular resistance (R
μ ). However, this requires repositioning of the temperature sensor by the operator to measure the entry temperature of the saline infusate, denoted as Ti ., Aims: We evaluated whether Ti could be predicted based on known parameters without compromising the accuracy of calculated Q. This would significantly simplify the technique and render it completely operator independent., Methods: In a derivation cohort of 371 patients with Q measured both at rest and during hyperaemia, multivariate linear regression was used to derive an equation for the prediction of Ti . Agreement between standard Q (calculated with measured Ti ) and simplified Q (calculated with predicted Ti ) was assessed in a validation cohort of 120 patients that underwent repeat Q measurements. The accuracy of simplified Q was assessed in a second validation cohort of 23 patients with [15 O]H2 O positron emission tomography (PET)-derived Q measurements., Results: Simplified Q exhibited strong agreement with standard Q (r=0.94, confidence interval [CI]: 0.93-0.95; intraclass correlation coefficient [ICC] 0.94, CI: 0.92-0.95; both p<0.001). Simplified Q exhibited excellent agreement with PET-derived Q (r=0.86, CI: 0.75-0.92; ICC=0.84, CI: 0.72-0.91; both p<0.001). Compared with standard Q, there were no statistically significant differences between correlation coefficients (p=0.29) or standard deviations of absolute differences with PET-derived Q (p=0.85)., Conclusions: Predicting Ti resulted in an excellent agreement with measured Ti for the assessment of coronary blood flow. It significantly simplifies continuous intracoronary thermodilution and renders absolute coronary flow measurements completely operator independent.- Published
- 2024
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140. Morphology-based non-rigid registration of coronary computed tomography and intravascular images through virtual catheter path optimization.
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Kadry K, Olender ML, Schuh A, Karmakar A, Petersen K, Schaap M, Marlevi D, UpdePac A, Mizukami T, Taylor C, Edelman ER, and Nezami FR
- Abstract
Coronary computed tomography angiography (CCTA) provides 3D information on obstructive coronary artery disease, but cannot fully visualize high-resolution features within the vessel wall. Intravascular imaging, in contrast, can spatially resolve atherosclerotic in cross sectional slices, but is limited in capturing 3D relationships between each slice. Co-registering CCTA and intravascular images enables a variety of clinical research applications but is time consuming and user-dependent. This is due to intravascular images suffering from non-rigid distortions arising from irregularities in the imaging catheter path. To address these issues, we present a morphology-based framework for the rigid and non-rigid matching of intravascular images to CCTA images. To do this, we find the optimal virtual catheter path that samples the coronary artery in CCTA image space to recapitulate the coronary artery morphology observed in the intravascular image. We validate our framework on a multi-center cohort of 40 patients using bifurcation landmarks as ground truth for longitudinal and rotational registration. Our registration approach significantly outperforms other approaches for bifurcation alignment. By providing a differentiable framework for multi-modal vascular co-registration, our framework reduces the manual effort required to conduct large-scale multi-modal clinical studies and enables the development of machine learning-based co-registration approaches.
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- 2024
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141. [Possibility of Using Smartphones to Collect Information on Food Preference in Clinical Trials].
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Mizukami T
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- Humans, Neoplasms therapy, Smartphone, Clinical Trials as Topic, Food Preferences
- Abstract
The widespread adoption of smartphones due to advances in information and communication technology(ICT)has enabled the use of software for data collection in clinical trials. In March 2021, revisions to the"Ethical Guidelines for Medical and Biological Research Involving Human Subjects"expanded the methods for obtaining consent using electronic means, further broadening the approaches to conducting clinical trials. However, nutrition impact symptoms in cancer patients remain inadequately defined. The authors aim to define these symptoms through the WASHOKU trial, utilizing smartphones for data collection related to nutrition. Through the WASHOKU trial, many challenges such as patient awareness, recruitment for research, smartphone ownership rates, and the technical proficiency of patients and users utilizing digital devices have come to light. Such trials serve as litmus tests, raising expectations for further clinical trials leveraging ICT.
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- 2024
142. Quantification and Timing of Epicardial Vasodilation by Sublingual Nitrates.
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Bermpeis K, Pauwels FA, Viscusi MM, Mahendiran T, Bertolone DT, Botti G, Brouwers S, Collet C, de Bruyne B, and Mizukami T
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- Humans, Time Factors, Administration, Sublingual, Nitroglycerin administration & dosage, Male, Predictive Value of Tests, Middle Aged, Female, Vasodilation drug effects, Vasodilator Agents administration & dosage, Pericardium drug effects
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- 2024
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143. Predictors for Vulnerable Plaque in Functionally Significant Lesions.
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Yang S, Hwang D, Sakai K, Mizukami T, Leipsic J, Belmonte M, Sonck J, Nørgaard BL, Otake H, Ko B, Maeng M, Møller Jensen J, Buytaert D, Munhoz D, Andreini D, Ohashi H, Shinke T, Taylor CA, Barbato E, De Bruyne B, Collet C, and Koo BK
- Abstract
Background: Vulnerable plaque presents prognostic implications in addition to functional significance., Objectives: The aim of this study was to identify relevant features of vulnerable plaque in functionally significant lesions., Methods: In this multicenter, prospective study conducted across 5 countries, including patients who had invasive fractional flow reserve (FFR) ≤0.80, a total of 95 patients with available pullback pressure gradient (PPG) and plaque analysis on coronary computed tomographic angiography and optical coherence tomography were analyzed. Vulnerable plaque was defined as the presence of plaque rupture or thin-cap fibroatheroma on optical coherence tomography. Among the 25 clinical characteristics, invasive angiographic findings, physiological indexes, and coronary computed tomographic angiographic findings, significant predictors of vulnerable plaque were identified., Results: Mean percentage diameter stenosis, FFR, and PPG were 77.8% ± 14.6%, 0.66 ± 0.13, and 0.65 ± 0.13, respectively. Vulnerable plaque was present in 53 lesions (55.8%). PPG and FFR were identified as significant predictors of vulnerable plaque (P < 0.05 for all). PPG >0.65 and FFR ≤0.70 were significantly related to a higher probability of vulnerable plaque after adjustment for each other (OR: 6.75 [95% CI: 2.39-19.1]; P < 0.001] for PPG >0.65; OR: 4.61 [95% CI: 1.66-12.8]; P = 0.003 for FFR ≤0.70). When categorizing lesions according to combined PPG >0.65 and FFR ≤0.70, the prevalence of vulnerable plaque was 20.0%, 57.1%, 66.7%, and 88.2% in the order of PPG ≤0.65 and FFR >0.70, PPG ≤0.65 and FFR ≤0.70, PPG >0.65 and FFR >0.70, and PPG >0.65 and FFR ≤0.70 (P for trend < 0.001), respectively., Conclusions: Among low-FFR lesions, the presence of vulnerable plaque can be predicted by PPG combined with FFR without additional anatomical or plaque characteristics. (Precise Percutaneous Coronary Intervention Plan [P3] Study; NCT03782688)., Competing Interests: Funding Support and Author Disclosures This study received funding from HeartFlow and was also supported by grants from the Patient-Centered Clinical Research Coordinating Center (HI19C0481 and HC19C0305) funded by the Ministry of Health and Welfare and from the Ministry of Food and Drug Safety (RS-2023-00215667), Republic of Korea. Dr Mizukami has received consulting fees from Zeon Medical and HeartFlow; and has received speaker fees from Abbott Vascular. Dr Leipsic is a consultant for and holds stock options in Circle CVI and HeartFlow; has received a research grant from GE; and has received modest speaker fees from GE and Philips. Drs Sonck and Munhoz have received research grants provided by the Cardiopath PhD program. Dr Nørgaard has received unrestricted institutional research grants from Siemens and HeartFlow. Dr Otake has received research grants from Abbott Vascular; and has received speaker fees from HeartFlow and Abbott Vascular. Dr Ko has received consulting fees from Canon Medical, Abbott, and Medtronic. Dr Koo has received institutional research grants from HeartFlow. Dr Maeng has received advisory board and lecture fees from AstraZeneca, Bayer, Boehringer Ingelheim, Bristol Myers Squibb, Boston Scientific, and Novo Nordics; and has received institutional research grants from Bayer, Philips Healthcare, and Novo Nordisk. Dr Jensen has received unrestricted institutional research grants from Siemens and HeartFlow. Dr Andreini has received research grants from GE Healthcare and Bracco. Dr Shinke has received research grants from Boston Scientific and Abbott Vascular. Dr Barbato has received speaker fees from Boston Scientific, Abbott Vascular, and GE. Dr De Bruyne has received consulting fees from Boston Scientific and Abbott Vascular; has received research grants from Coroventis Research, Pie Medical Imaging, CathWorks, Boston Scientific, Siemens, HeartFlow, and Abbott Vascular; and owns equity in Siemens, GE, Philips, HeartFlow, Edwards Lifesciences, Bayer, Sanofi, and Celyad. Dr Collet has received research grants from Biosensor, Coroventis Research, Medis Medical Imaging, Pie Medical Imaging, CathWorks, Boston Scientific, Siemens, HeartFlow, and Abbott Vascular; and has received consulting fees from HeartFlow, OpSens, Abbott Vascular, and Philips Volcano. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (Copyright © 2024 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)
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- 2024
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144. Varicose vein treatment reduces edema not only in the treated legs but also in the entire body.
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Tomita S, Mizukami T, Koyama Y, Inagaki M, Ozoe S, and Okawa Y
- Subjects
- Humans, Female, Middle Aged, Male, Prospective Studies, Adult, Aged, Leg blood supply, Electric Impedance, Varicose Veins therapy, Varicose Veins surgery, Edema
- Abstract
Objectives: We explored the connection between varicose vein and edema, by investigating extracellular water ratio (E/T) using bioelectrical impedance analysis., Methods: In a prospective cohort study 120 patients underwent varicose vein surgery with extracellular fluid to total body water ratio (E/T) and E/T postop divided by E/Tpreop (E/T ratio) measured using a body composition analyzer. Edema was defined as E/T ≥0.390. Seventy-nine patients received unilateral treatment, while 41 underwent bilateral. p < .05 is statistically significant., Results: Preoperatively, patients exhibited edema (E/T) in the treated leg (0.394 ± 0.009), untreated leg (0.392 ± 0.009), trunk (0.390 ± 0.007), and whole body (0.391 ± 0.007). Postoperatively, E/T decreased across body ( p < .05). The lowest E/T ratio was observed in the treated leg (0.991 ± 0.012), followed by the untreated leg (0.994 ± 0.012), the trunk (0.995 ± 0.009), and the whole body (0.994 ± 0.009). E/T ratio of bilateral group were lower than unilateral group ( p < .05)., Conclusion: Varicose vein contributes to generalized edema, and treatment alleviates edema in the treated leg and the entire body., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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145. Computed coronary tomography angiography for left main diameter assessment.
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Bouisset F, Ohashi H, Seiki R, Mizukami T, Norgaard BL, Stottrup NB, Zivelonghi C, Ko B, Otake H, Sonck J, Koo BK, Amano T, Wilgenhof A, Agostoni P, and Collet C
- Subjects
- Humans, Reproducibility of Results, Severity of Illness Index, Coronary Angiography methods, Computed Tomography Angiography, Predictive Value of Tests, Coronary Vessels diagnostic imaging, Coronary Artery Disease diagnostic imaging
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- 2024
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146. Vascular Remodeling in Coronary Microvascular Dysfunction.
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Collet C, Sakai K, Mizukami T, Ohashi H, Bouisset F, Caglioni S, van Hoe L, Gallinoro E, Bertolone DT, Pardaens S, Brouwers S, Storozhenko T, Seki R, Munhoz D, Tajima A, Buytaert D, Vanderheyden M, Wyffels E, Bartunek J, Sonck J, and De Bruyne B
- Abstract
Background: Approximately half of the patients with angina and nonobstructive coronary artery disease (ANOCA) have evidence of coronary microvascular dysfunction (CMD)., Objectives: This study aims to characterize patients with ANOCA by measuring their minimal microvascular resistance and to examine the pattern of vascular remodeling associated with these measurements., Methods: The authors prospectively included patients with ANOCA undergoing continuous thermodilution assessment. Lumen volume and vessel-specific myocardial mass were quantified using coronary computed tomography angiography (CTA). CMD was defined as coronary flow reserve <2.5 and high minimal microvascular resistance as >470 WU., Results: A total of 153 patients were evaluated; 68 had CMD, and 22 of them showed high microvascular resistance. In patients with CMD, coronary flow reserve was 1.9 ± 0.38 vs 3.2 ± 0.81 in controls (P < 0.001). Lumen volume was significantly correlated with minimal microvascular resistance (r = -0.59 [95% CI: -0.45 to -0.71]; P < 0.001). In patients with CMD and high microvascular resistance, lumen volume was 40% smaller than in controls (512.8 ± 130.3 mm
3 vs 853.2 ± 341.2 mm3 ; P < 0.001). Epicardial lumen volume assessed by coronary CTA was independently associated with minimal microvascular resistance (P < 0.001). The predictive capacity of lumen volume from coronary CTA for detecting high microvascular resistance showed an area under the curve of 0.79 (95% CI: 0.69-0.88)., Conclusions: Patients with CMD and high minimal microvascular resistance have smaller epicardial vessels than those without CMD. Coronary CTA detected high minimal microvascular resistance with very good diagnostic capacity. Coronary CTA could potentially aid in the diagnostic pathway for patients with ANOCA., Competing Interests: Funding Support and Author Disclosures Dr Collet has received research grants from Biosensor, Coroventis Research, Medis Medical Imaging, Pie Medical Imaging, CathWorks, Boston Scientific, Siemens, HeartFlow Inc, and Abbott Vascular; and consultancy fees from HeartFlow Inc, OpSens, Abbott Vascular, and Philips Volcano. Dr Mizukami has received consultancy fees from Zeon Medical Inc, research grants from Boston Scientific, and speaker fees from Abbott Vascular, Cath works, and Boston Scientific. Drs Buytaert and Munhoz have received research grants provided by the Cardiopath PhD program. Dr De Bruyne has received consultancy fees from Boston Scientific and Abbott Vascular; research grants from Coroventis Research, Pie Medical Imaging, CathWorks, Boston Scientific, Siemens, HeartFlow Inc, and Abbott Vascular; and owns equity in Siemens, GE, Philips, HeartFlow Inc, Edwards Life Sciences, Bayer, Sanofi, and Celyad. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (Copyright © 2024 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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147. Changes in Ocular Blood Flow After Intravitreal Injection for Diabetic Macular Edema Between Aflibercept and Faricimab.
- Author
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Mizukami T, Mizumoto S, Ishibashi T, Ueno S, Toyonishi T, Tachibana K, Mishima S, and Shimomura Y
- Abstract
Purpose: In this study, we aimed to evaluate and compare the effects of intravitreal aflibercept (IVA) and intravitreal faricimab (IVF) injections on the blood flow of retinal vessels in the peripapillary region and optic nerve head (ONH) in eyes with diabetic macular edema (DME) using laser speckle flowgraphy (LSFG)., Patients and Methods: This study included 20 eyes of 18 patients treated with IVA and 15 eyes of 11 patients treated with IVF for DME. The mean blur rate (MBR) of the ONH and retinal artery and vein of the peripapillary region were measured using LSFG at baseline and 1 month after injection. Central retinal thickness (CRT) and best-corrected visual acuity (BCVA) were measured for all patients., Results: CRT decreased significantly in both IVA-treated ( p = 0.0003) and IVF-treated groups ( p = 0.0004). Some of the MBR-related parameters of the ONH, such as MBR of all areas (MA), MBR of vascular areas (MV), and MBR of tissue areas (MT), decreased significantly 1 month after IVA and IVF compared to baseline values (MA of IVA, p < 0.0001; MT of IVA, p = 0.0220; MA of IVF, p = 0.0002; MT of IVF, p = 0.0461). MBR of the retinal artery (MBR-A) and vein (MBR-V) also decreased significantly 1 month after IVA and IVF compared with baseline values (MBR-A of IVA, p = 0.0002; MBR-V of IVA, p = 0.0010; MBR-A of IVF, p = 0.0368). No significant difference in ocular perfusion was observed between the IVA-treated and IVF-treated groups., Conclusion: Intravitreal injection led to a reduction in ocular blood flow in both retinal peripapillary vessels and the ONH in both IVA-treated and IVF-treated groups. No significant difference was observed in MBR reduction between the IVA-treated and IVF-treated groups. Our findings warrant further long-term investigations to reveal differences between aflibercept and faricimab., Competing Interests: The authors report no conflicts of interest in this work., (© 2024 Mizukami et al.)
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- 2024
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148. Prognostic value of left atrial reverse remodelling in patients hospitalized with acute decompensated heart failure.
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Nagumo S, Ebato M, Tsujiuchi M, Mizukami T, Maezawa H, Omura A, Kubota M, Ohmi M, Numajiri Y, Kitai H, Toshida T, Iso Y, and Suzuki H
- Abstract
Aims: Left atrial (LA) volume index (LAVI) in chronic heart failure (HF) predicts cardiovascular outcomes. However, the association between LAVI reduction during acute decompensated HF (ADHF) and its prognostic potential is limited. We hypothesized that LA reverse remodelling (LARR) after ADHF therapy would be associated with better clinical outcomes., Methods: This retrospective study analysed clinical outcomes and the LAVI reduction rate of 363 out of 861 patients hospitalized for ADHF who underwent two-point echocardiography at admission and discharge between January 2015 and December 2019. The mean age was 74.3 ± 13.6 years, and the mean ejection fraction (EF) was 38.9 ± 15.2%. The follow-up echocardiogram was performed 13.0 [9.5, 20] days after admission. As the median LAVI reduction rate was 7.02%, the LARR was defined as an LAVI reduction rate >7%., Results: During the 34.0 ± 20.2 months of follow-up, 117 patients (32.2%) reached the primary endpoint defined as cardiovascular death and rehospitalization for ADHF. Kaplan-Meier survival analysis showed that patients with LARR had a better prognosis. Multivariate analysis indicated that LARR was an independent predictor of cardiovascular events. Similar findings were observed in the subgroup analyses of patients with persistent/permanent atrial fibrillation and those with non-HF with reduced EF. Among patients who were brain natriuretic peptide (BNP) responders, defined as a relative reduction of >70% in BNP from admission to discharge, non-LARR was observed in 41.6%. BNP responders without LARR experienced worse prognoses., Conclusions: LARR in the early vulnerable phase after hospitalization for ADHF was associated with better long-term clinical outcomes., (© 2024 The Author(s). ESC Heart Failure published by John Wiley & Sons Ltd on behalf of European Society of Cardiology.)
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- 2024
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149. Subcutaneous Sweet's Syndrome Presenting With a Single Cutaneous Lesion on the Thigh.
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Youh J, Mizukami T, Nagata Y, and Ito K
- Abstract
Sweet's syndrome (SS), also known as acute febrile neutrophilic dermatosis, manifests as tender, erythematous skin lesions such as papules, nodules, and plaques that may appear vesicular or pustular. The condition is characterized by widespread infiltrates mainly consisting of mature neutrophils, usually in the upper dermis. Erythema nodosum (EN) is a form of septal panniculitis marked by tender, erythematous lesions primarily appearing on the lower legs. Additionally, subcutaneous Sweet's syndrome (SSS) is a rare variant of SS that mainly involves the subcutaneous adipose tissue. Skin lesions in SSS generally present as tender, erythematous subepidermal nodules on the extremities, morphologically resembling EN. Both EN and SS can present with fever, malaise, gastrointestinal disturbances, lymphadenopathy, arthralgia, increased white blood cell (WBC) count with neutrophilia, elevated C-reactive protein (CRP), and elevated erythrocyte sedimentation rate (ESR), making differentiation between them often challenging. Therefore, histopathologic evaluation is necessary for an accurate diagnosis. In our case, the patient exhibited a very painful plaque measuring 20 cm in diameter on the upper thigh without significant neutrophil infiltration in the dermis, but with subcutaneous septal neutrophil infiltration. Generally, SS shows stronger leukocytosis with neutrophilia than EN does. Considering the clinical symptoms, laboratory results, and clinical progression, the clinicopathological findings aligned more closely with SSS than EN. This article describes a rare case of SSS presenting with a single cutaneous lesion on the thigh, which mimicked the histopathological features of EN., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Youh et al.)
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- 2024
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150. Influence of Pathophysiologic Patterns of Coronary Artery Disease on Immediate Percutaneous Coronary Intervention Outcomes.
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Collet C, Munhoz D, Mizukami T, Sonck J, Matsuo H, Shinke T, Ando H, Ko B, Biscaglia S, Rivero F, Engstrøm T, Arslani K, Leone AM, van Nunen LX, Fearon WF, Christiansen EH, Fournier S, Desta L, Yong A, Adjedj J, Escaned J, Nakayama M, Eftekhari A, Zimmermann FM, Sakai K, Storozhenko T, da Costa BR, Campo G, West NEJ, De Potter T, Heggermont W, Buytaert D, Bartunek J, Berry C, Collison D, Johnson T, Amano T, Perera D, Jeremias A, Ali Z, Pijls NHJ, De Bruyne B, and Johnson NP
- Subjects
- Humans, Female, Male, Aged, Middle Aged, Prospective Studies, Treatment Outcome, Percutaneous Coronary Intervention adverse effects, Coronary Artery Disease physiopathology, Coronary Artery Disease therapy, Fractional Flow Reserve, Myocardial
- Abstract
Background: Diffuse coronary artery disease affects the safety and efficacy of percutaneous coronary intervention (PCI). Pathophysiologic coronary artery disease patterns can be quantified using fractional flow reserve (FFR) pullbacks incorporating the pullback pressure gradient (PPG) calculation. This study aimed to establish the capacity of PPG to predict optimal revascularization and procedural outcomes., Methods: This prospective, investigator-initiated, single-arm, multicenter study enrolled patients with at least one epicardial lesion with an FFR ≤0.80 scheduled for PCI. Manual FFR pullbacks were used to calculate PPG. The primary outcome of optimal revascularization was defined as an FFR ≥0.88 after PCI., Results: A total of 993 patients with 1044 vessels were included. The mean FFR was 0.68±0.12, PPG 0.62±0.17, and the post-PCI FFR was 0.87±0.07. PPG was significantly correlated with the change in FFR after PCI (r=0.65 [95% CI, 0.61-0.69]; P <0.001) and demonstrated excellent predictive capacity for optimal revascularization (area under the receiver operating characteristic curve, 0.82 [95% CI, 0.79-0.84]; P <0.001). FFR alone did not predict revascularization outcomes (area under the receiver operating characteristic curve, 0.54 [95% CI, 0.50-0.57]). PPG influenced treatment decisions in 14% of patients, redirecting them from PCI to alternative treatment modalities. Periprocedural myocardial infarction occurred more frequently in patients with low PPG (<0.62) compared with those with focal disease (odds ratio, 1.71 [95% CI, 1.00-2.97])., Conclusions: Pathophysiologic coronary artery disease patterns distinctly affect the safety and effectiveness of PCI. PPG showed an excellent predictive capacity for optimal revascularization and demonstrated added value compared with an FFR measurement., Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT04789317., Competing Interests: Dr Collet reports receiving research grants from Biosensors, Coroventis Research, Medis Medical Imaging, Pie Medical Imaging, CathWorks, Boston Scientific, Siemens, HeartFlow, and Abbott Vascular; consultancy fees from HeartFlow, OpSens Medical, Abbott Vascular, and Philips Volcano; and has patents pending on diagnostic methods for coronary artery disease. Dr Munhoz reports a research grant provided by the CardioPath PhD programme and speaker fees from Abbott Vascular. Dr Mizukami reports receiving research grants from Boston Scientific and speaker fees from Abbott Vascular, CathWorks, and Boston Scientific. Dr Matsuo has received consulting fees from Kaneka and Zeon and speaker’s fees from Abbott Medical Japan, Boston Scientific, Philips, and Amgen. Dr Ko has received consulting fees from Canon Medical, Abbott, and Medtronic. Dr Biscaglia received research grants provided by Sahajanand Medical Technologies, Medis Medical Imaging, Eukon Srl, Siemens Healthineers, General Electric Healthcare, and Insight Lifetech. Dr Engstrøm reports speaker and advisory board fees from Abbott, Boston Scientific, and Novo Nordisk. Dr Leone reports receiving consultancy fees from Abbott and honoraria for sponsored symposia from Abbott, Medtronic, and Abiomed. Dr Fearon receives institutional research support from Abbott, Boston Scientific, and Medtronic and has consulting relationships with CathWorks and Siemens and stock options from HeartFlow. Dr Christiansen has received consulting fees from Abbott Medical Denmark A/S. Dr Yong has received minor honoraria from Abbott Vascular and research grants from Abbott Vascular and Philips. Dr Escaned is supported by the Intensification of Research Activity project INT22/00088 from the Spanish Instituto de Salud Carlos III and received speaker and advisory board member fees from Abbott and Philips. Dr Storozhenko reports a grant provided by the EAPCI Fellowship Programme. Dr West is an employee of Abbott Vascular. Dr De Potter is a paid consultant for Biosense Webster and receives grant support (institutional) and consultancy fees (institutional) from Abbott. Dr Berry receives research funding from the British Heart Foundation (grants RE/18/6134217, BHF/FS/17/26/32744, and PG/19/28/34310) and is employed by the University of Glasgow, which holds consultancy and research agreements for his work with Abbott Vascular, AstraZeneca, Boehringer Ingelheim, Coroventis Research, GlaxoSmithKline, HeartFlow, Menarini, Novartis, Servier, Siemens Healthcare, and Valo Health. Dr Collison has received consulting fees from Abbott. Dr Johnson has received consultancy or speaker fees from Abbott Vascular, Boston Scientific, Medtronic, Shockwave, and Terumo, and research grants from Abbott Vascular. Dr Amano reports receiving lecture fees from Astellas Pharma, Astra Zeneca, Bayer, Daiichi Sankyo, and Bristol Myers Squibb. Dr Perera has received research grant support from Abbott Vascular, HeartFlow, and Philips. Dr Jeremias has received consulting fees from Canon Medical, Artrya Medical, and Boston Scientific. Dr Ali reports institutional grant support from Abbott, Abiomed, Acist, Amgen, Boston Scientific, CathWorks, Canon Medical, Conavi, HeartFlow, Inari, Medtronic, the US National Institutes of Health, Nipro, OpSens Medical, Medis, Philips, Shockwave, Siemens, SpectraWAVE, and Teleflex; consulting fees from Abiomed, Astra Zeneca, Boston Scientific, CathWorks, OpSens Medical, Philips, and Shockwave; and equity in Elucid, Lifelink, SpectraWAVE, Shockwave, and VitalConnect. Dr Pijls has received research grants from Abbott and Hexacath; consultancy fees from Abbott, GE, Philips, and HeartFlow; and has equity in General Electric, Philips, and HeartFlow. Dr De Bruyne reports receiving consultancy fees from Boston Scientific and Abbott and research grants from Coroventis Research, Pie Medical Imaging, CathWorks, Boston Scientific, Siemens, HeartFlow, and Abbott Vascular. Dr Johnson received internal funding from the Weatherhead PET Center for Preventing and Reversing Atherosclerosis; has received significant institutional research support from St Jude Medical (CONTRAST [Can Contrast Injection Better Approximate FFR Compared to Pure Resting Physiology?; URL: https://www.clinicaltrials.gov; Unique identifier: NCT02184117]) and Philips Volcano (DEFINE-FLOW [Combined Pressure and Flow Measurements to Guide Treatment of Coronary Stenoses; URL: https://www.clinicaltrials.gov; Unique identifier: NCT02328820]) for other studies using intracoronary pressure and flow sensors; has an institutional licensing agreement with Boston Scientific for the smart-minimum FFR algorithm (now commercialized under 510[k] K191008); and has patents pending on diagnostic methods for quantifying aortic stenosis and TAVI physiology and on methods to correct pressure tracings from fluid-filled catheters.
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- 2024
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