81 results on '"Tsugu T"'
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2. Impact of vessel morphology on computed tomography derived fractional flow reserve (FFRCT) in normal coronary artery disease: a novel marker for the predictor of FFRCT changes
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Tsugu, T, primary, Tanaka, K, additional, Nagatomo, Y, additional, Belsack, D, additional, Argacha, J F, additional, Cosysns, B, additional, De Maeseneer, M, additional, and De Mey, J, additional
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- 2022
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3. Impact of vascular morphology and plaque characteristics on computed tomography derived fractional flow reserve in early stage coronary artery disease
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Tsugu, T, primary, Tanaka, K, additional, Belsack, D, additional, Devos, H, additional, Nagatomo, Y, additional, Michiels, V, additional, Argacha, J F, additional, Cosyns, B, additional, Buls, N, additional, and De Mey, J, additional
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- 2021
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4. Effects of left ventricular mass index on computed tomography derived fractional flow reserve in significant obstructive coronary artery disease
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Tsugu, T, primary, Tanaka, K, additional, Belsack, D, additional, Devos, H, additional, Nagatomo, Y, additional, Michiels, V, additional, Argacha, J F, additional, Cosyns, B, additional, Buls, N, additional, and De Mey, J, additional
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- 2021
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- View/download PDF
5. Echocardiographic reference ranges for normal left ventricular layer-specific strain: results from the EACVI NORRE study
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Tsugu, T, Postolache, A, Dulgheru, R, Sugimoto, T, Tridetti, J, Nguyen Trung, M, Piette, C, Moonen, M, Manganaro, R, Ilardi, F, Chitroceanu, A, Sperlongano, S, Go, Y, Kacharava, G, Athanassopoulos, G, Barone, D, Baroni, M, Cardim, N, Hagendorff, A, Hristova, K, Lopez, T, de la Morena, G, Popescu, B, Penicka, M, Ozyigit, T, Rodrigo Carbonero, J, van de Veire, N, Von Bardeleben, R, Vinereanu, D, Zamorano, J, Rosca, M, Calin, A, Magne, J, Cosyns, B, Galli, E, Donal, E, Santoro, C, Galderisi, M, Badano, L, Lang, R, Lancellotti, P, Tsugu, Toshimitsu, Postolache, Adriana, Dulgheru, Raluca, Sugimoto, Tadafumi, Tridetti, Julien, Nguyen Trung, Mai-Linh, Piette, Caroline, Moonen, Marie, Manganaro, Roberta, Ilardi, Federica, Chitroceanu, Alexandra Maria, Sperlongano, Simona, Go, Yun Yun, Kacharava, George, Athanassopoulos, George D, Barone, Daniele, Baroni, Monica, Cardim, Nuno, Hagendorff, Andreas, Hristova, Krasimira, Lopez, Teresa, de la Morena, Gonzalo, Popescu, Bogdan A, Penicka, Martin, Ozyigit, Tolga, Rodrigo Carbonero, Jose David, van de Veire, Nico, Von Bardeleben, Ralph Stephan, Vinereanu, Dragos, Zamorano, Jose Luis, Rosca, Monica, Calin, Andreea, Magne, Julien, Cosyns, Bernard, Galli, Elena, Donal, Erwan, Santoro, Ciro, Galderisi, Maurizio, Badano, Luigi, Lang, Roberto M, Lancellotti, Patrizio, Tsugu, T, Postolache, A, Dulgheru, R, Sugimoto, T, Tridetti, J, Nguyen Trung, M, Piette, C, Moonen, M, Manganaro, R, Ilardi, F, Chitroceanu, A, Sperlongano, S, Go, Y, Kacharava, G, Athanassopoulos, G, Barone, D, Baroni, M, Cardim, N, Hagendorff, A, Hristova, K, Lopez, T, de la Morena, G, Popescu, B, Penicka, M, Ozyigit, T, Rodrigo Carbonero, J, van de Veire, N, Von Bardeleben, R, Vinereanu, D, Zamorano, J, Rosca, M, Calin, A, Magne, J, Cosyns, B, Galli, E, Donal, E, Santoro, C, Galderisi, M, Badano, L, Lang, R, Lancellotti, P, Tsugu, Toshimitsu, Postolache, Adriana, Dulgheru, Raluca, Sugimoto, Tadafumi, Tridetti, Julien, Nguyen Trung, Mai-Linh, Piette, Caroline, Moonen, Marie, Manganaro, Roberta, Ilardi, Federica, Chitroceanu, Alexandra Maria, Sperlongano, Simona, Go, Yun Yun, Kacharava, George, Athanassopoulos, George D, Barone, Daniele, Baroni, Monica, Cardim, Nuno, Hagendorff, Andreas, Hristova, Krasimira, Lopez, Teresa, de la Morena, Gonzalo, Popescu, Bogdan A, Penicka, Martin, Ozyigit, Tolga, Rodrigo Carbonero, Jose David, van de Veire, Nico, Von Bardeleben, Ralph Stephan, Vinereanu, Dragos, Zamorano, Jose Luis, Rosca, Monica, Calin, Andreea, Magne, Julien, Cosyns, Bernard, Galli, Elena, Donal, Erwan, Santoro, Ciro, Galderisi, Maurizio, Badano, Luigi, Lang, Roberto M, and Lancellotti, Patrizio
- Abstract
Aims : To obtain the normal range for 2D echocardiographic (2DE) measurements of left ventricular (LV) layer-specific strain from a large group of healthy volunteers of both genders over a wide range of ages. Methods and results : A total of 287 (109 men, mean age: 46 ± 14 years) healthy subjects were enrolled at 22 collaborating institutions of the EACVI Normal Reference Ranges for Echocardiography (NORRE) study. Layer-specific strain was analysed from the apical two-, three-, and four-chamber views using 2DE software. The lowest values of layer-specific strain calculated as ±1.96 standard deviations from the mean were -15.0% in men and -15.6% in women for epicardial strain, -16.8% and -17.7% for mid-myocardial strain, and -18.7% and -19.9% for endocardial strain, respectively. Basal-epicardial and mid-myocardial strain decreased with age in women (epicardial; P = 0.008, mid-myocardial; P = 0.003) and correlated with age (epicardial; r = -0.20, P = 0.007, mid-myocardial; r = -0.21, P = 0.006, endocardial; r = -0.23, P = 0.002), whereas apical-epicardial, mid-myocardial strain increased with the age in women (epicardial; P = 0.006, mid-myocardial; P = 0.03) and correlated with age (epicardial; r = 0.16, P = 0.04). End/Epi ratio at the apex was higher than at the middle and basal levels of LV in men (apex; 1.6 ± 0.2, middle; 1.2 ± 0.1, base 1.1 ± 0.1) and women (apex; 1.6 ± 0.1, middle; 1.1 ± 0.1, base 1.2 ± 0.1). Conclusion : The NORRE study provides useful 2DE reference ranges for novel indices of layer-specific strain.
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- 2020
6. Correlation between non-invasive myocardial work indices and main parameters of systolic and diastolic function: results from the EACVI NORRE study
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Manganaro, R, Marchetta, S, Dulgheru, R, Sugimoto, T, Tsugu, T, Ilardi, F, Cicenia, M, Ancion, A, Postolache, A, Martinez, C, Kacharava, G, Athanassopoulos, G, Barone, D, Baroni, M, Cardim, N, Hagendorff, A, Hristova, K, Lopez, T, de la Morena, G, Popescu, B, Penicka, M, Ozyigit, T, Rodrigo Carbonero, J, van de Veire, N, Von Bardeleben, R, Vinereanu, D, Zamorano, J, Rosca, M, Calin, A, Moonen, M, Magne, J, Cosyns, B, Galli, E, Donal, E, Carerj, S, Zito, C, Santoro, C, Galderisi, M, Badano, L, Lang, R, Lancellotti, P, Manganaro, Roberta, Marchetta, Stella, Dulgheru, Raluca, Sugimoto, Tadafumi, Tsugu, Toshimitsu, Ilardi, Federica, Cicenia, Marianna, Ancion, Arnaud, Postolache, Adriana, Martinez, Christophe, Kacharava, George, Athanassopoulos, George D, Barone, Daniele, Baroni, Monica, Cardim, Nuno, Hagendorff, Andreas, Hristova, Krasimira, Lopez, Teresa, de la Morena, Gonzalo, Popescu, Bogdan A, Penicka, Martin, Ozyigit, Tolga, Rodrigo Carbonero, Jose David, van de Veire, Nico, Von Bardeleben, Ralph Stephan, Vinereanu, Dragos, Zamorano, Jose Luis, Rosca, Monica, Calin, Andreea, Moonen, Marie, Magne, Julien, Cosyns, Bernard, Galli, Elena, Donal, Erwan, Carerj, Scipione, Zito, Concetta, Santoro, Ciro, Galderisi, Maurizio, Badano, Luigi, Lang, Roberto M, Lancellotti, Patrizio, Manganaro, R, Marchetta, S, Dulgheru, R, Sugimoto, T, Tsugu, T, Ilardi, F, Cicenia, M, Ancion, A, Postolache, A, Martinez, C, Kacharava, G, Athanassopoulos, G, Barone, D, Baroni, M, Cardim, N, Hagendorff, A, Hristova, K, Lopez, T, de la Morena, G, Popescu, B, Penicka, M, Ozyigit, T, Rodrigo Carbonero, J, van de Veire, N, Von Bardeleben, R, Vinereanu, D, Zamorano, J, Rosca, M, Calin, A, Moonen, M, Magne, J, Cosyns, B, Galli, E, Donal, E, Carerj, S, Zito, C, Santoro, C, Galderisi, M, Badano, L, Lang, R, Lancellotti, P, Manganaro, Roberta, Marchetta, Stella, Dulgheru, Raluca, Sugimoto, Tadafumi, Tsugu, Toshimitsu, Ilardi, Federica, Cicenia, Marianna, Ancion, Arnaud, Postolache, Adriana, Martinez, Christophe, Kacharava, George, Athanassopoulos, George D, Barone, Daniele, Baroni, Monica, Cardim, Nuno, Hagendorff, Andreas, Hristova, Krasimira, Lopez, Teresa, de la Morena, Gonzalo, Popescu, Bogdan A, Penicka, Martin, Ozyigit, Tolga, Rodrigo Carbonero, Jose David, van de Veire, Nico, Von Bardeleben, Ralph Stephan, Vinereanu, Dragos, Zamorano, Jose Luis, Rosca, Monica, Calin, Andreea, Moonen, Marie, Magne, Julien, Cosyns, Bernard, Galli, Elena, Donal, Erwan, Carerj, Scipione, Zito, Concetta, Santoro, Ciro, Galderisi, Maurizio, Badano, Luigi, Lang, Roberto M, and Lancellotti, Patrizio
- Abstract
AIMS: The present study sought to evaluate the correlation between indices of non-invasive myocardial work (MW) and left ventricle (LV) size, traditional and advanced parameters of LV systolic and diastolic function by 2D echocardiography (2DE). METHODS AND RESULTS: A total of 226 (85 men, mean age: 45 ± 13 years) healthy subjects were enrolled at 22 collaborating institutions of the Normal Reference Ranges for Echocardiography (NORRE) study. Global work index (GWI), global constructive work (GCW), global work waste (GWW), and global work efficiency (GWE) were estimated from LV pressure-strain loops using custom software. Peak LV pressure was estimated non-invasively from brachial artery cuff pressure. LV size, parameters of systolic and diastolic function and ventricular-arterial coupling were measured by echocardiography. As advanced indices of myocardial performance, global longitudinal strain (GLS), global circumferential strain (GCS), and global radial strain (GRS) were obtained. On multivariable analysis, GWI was significantly correlated with GLS (standardized beta-coefficient = -0.23, P < 0.001), ejection fraction (EF) (standardized beta-coefficient = 0.15, P = 0.02), systolic blood pressure (SBP) (standardized beta-coefficient = 0.56, P < 0.001) and GRS (standardized beta-coefficient = 0.19, P = 0.004), while GCW was correlated with GLS (standardized beta-coefficient = -0.55, P < 0.001), SBP (standardized beta-coefficient = 0.71, P < 0.001), GRS (standardized beta-coefficient = 0.11, P = 0.02), and GCS (standardized beta-coefficient = -0.10, P = 0.01). GWE was directly correlated with EF and inversely correlated with Tei index (standardized beta-coefficient = 0.18, P = 0.009 and standardized beta-coefficient = -0.20, P = 0.004, respectively), the opposite occurred for GWW (standardized beta-coefficient =--0.14, P = 0.03 and standardized beta-coefficient = 0.17, P = 0.01, respectively). CONCLUSION: The non-invasive MW indices show a good correlati
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- 2020
7. Layer-specific strain and the degree of left ventricular thickness in patients with hypertrophic cardiomyopathy
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Tsugu, T, primary, Nagatomo, Y, additional, Dulgheru, R, additional, Marchetta, S, additional, Postolache, A, additional, Tridetti, J, additional, Nguyen, M.L, additional, Piette, C, additional, and Lancellotti, P, additional
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- 2020
- Full Text
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8. P4007Right ventricular strain predicts exercise tolerance after balloon pulmonary angioplasty in patients with chronic thromboembolic pulmonary hypertension
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Tsugu, T., primary, Murata, M., additional, Kawamura, T., additional, Kataoka, M., additional, Minakata, Y., additional, Tsuruta, H., additional, Itabashi, Y., additional, Maekawa, Y., additional, Mitamura, H., additional, and Fukuda, K., additional
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- 2017
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9. A Case of Giant Papillary Fibroelastoma in the Left Atrium
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Tsugu, T., primary, Iwanaga, S., additional, Nakamura, I., additional, Kobayashi, M., additional, Kitamura, Y., additional, and Inoue, S., additional
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- 2013
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10. Possible implication of hippocampal cholinergic neurostimulating peptide (HCNP)-related components in Hirano body formation
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Mitake, S., primary, Katada, E., additional, Otsuka, Y., additional, Matsukawa, N., additional, Iwase, T., additional, Tsugu, T., additional, Fujimori, O., additional, and Ojika, K., additional
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- 1996
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11. The mutation of two amino acid residues in the N-terminus of tyrosine hydroxylase (TH) dramatically enhances the catalytic activity in neuroendocrine AtT-20 cells.
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Nakashima, A., Kaneko, Y.S., Mori, K., Fujiwara, K., Tsugu, T., Suzuki, T., Nagatsu, T., and Ota, A.
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AMINO acids ,GENETIC mutation ,TYROSINE ,GENETIC regulation - Abstract
The sequence Arg37-Arg38 of tyrosine hydroxylase (TH) is known to play a significant role in the feedback inhibition by the end product DA. To clarify how deeply the sequence Arg37-Arg38 and the phosphorylated Ser40 of human TH type 1 (hTH1) are involved in the regulation of this feedback inhibition in mammalian cells, we generated the following mutants: (i) RR-GG, Arg37-Arg38 replaced by Gly37-Gly38; (ii) RR-EE, Arg37-Arg38 replaced by Glu37-Glu38; (iii) S40D, Ser40 replaced by Asp40; and (iv) S40A, Ser40 replaced by Ala40. In a cell-free system, the level of the DA inhibition of the RR-EE mutant enzyme was to the same or smaller degree than that of the phosphorylation-mimicking S40D. Next, AtT-20 neuroendocrine cells were transfected with wild-type and mutated TH genes because these cells were earlier shown to be capable of fully converting L-3,4-dihydroxyphenylalanine into DA, whereby the catalytic activity of TH would be expected to be inhibited by the end product DA accumulating in the cells. The level of DA accumulation in AtT-20 cells expressing the TH gene was in the order: RR-EE > S40D > S40A = RR-GG > wild-type, which was in accordance with the observations for the cell-free system. These results suggest that the sequence Arg37-Arg38 of hTH1 is a more potent determinant of the efficient production of DA in mammalian cells than is the phosphorylated Ser40-hTH1. [ABSTRACT FROM AUTHOR]
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- 2002
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12. Postoperative thallium-201 myocardial images. Evidence of regression of right ventricular hypertrophy in man.
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Yamazaki, H, Tsugu, T, Handa, S, Takagi, Y, Ohsuzu, F, Kondo, M, Kubo, A, Inoue, T, and Nakamura, Y
- Abstract
Thallium-201 myocardial scintigraphic studies were performed on 24 patients with chronic right ventricular overload before and after surgical correction of haemodynamic overload. The ages of the patients ranged from 20 to 65 years (mean 39 years) at operation. The degree of right ventricular visualisation remained essentially unchanged in an early postoperative study (four to 60 days), though a decrease in right ventricular cavity size was noted in patients with right ventricular volume overload. On later follow-up (18 to 36 months), thallium uptake in the right ventricle was definitely less than before operation in all 13 patients studied at this time. Because thallium-201 radioactivity reflects myocardial blood flow and mass, our study indicates that right ventricular hypertrophy is largely reversible. Thus, thallium-201 myocardial scintigraphy can be used to assess non-invasively regression of right ventricular hypertrophy in patients with right ventricular overload. [ABSTRACT FROM PUBLISHER]
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- 1982
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13. Postoperative thallium-201 myocardial images. Evidence of regression of right ventricular hypertrophy in man.
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Yamazaki, H, primary, Tsugu, T, additional, Handa, S, additional, Takagi, Y, additional, Ohsuzu, F, additional, Kondo, M, additional, Kubo, A, additional, Inoue, T, additional, and Nakamura, Y, additional
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- 1982
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14. Thallium-201 myocardial imaging to evaluate right ventricular overloading.
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Ohsuzu, F, primary, Handa, S, additional, Kondo, M, additional, Yamazaki, H, additional, Tsugu, T, additional, Kubo, A, additional, Takagi, Y, additional, and Nakamura, Y, additional
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- 1980
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15. Echocardiographic reference ranges for normal left ventricular layer-specific strain: results from the EACVI NORRE study
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Erwan Donal, Ralph Stephan von Bardeleben, Jose David Rodrigo Carbonero, Maurizio Galderisi, Simona Sperlongano, Monica Rosca, Caroline Piette, Roberta Manganaro, Daniele Barone, Adriana Postolache, Gonzalo de la Morena, Ciro Santoro, Federica Ilardi, Teresa López, George Kacharava, Bogdan A. Popescu, Monica Baroni, Elena Galli, Patrizio Lancellotti, Toshimitsu Tsugu, Julien Magne, Yun Yun Go, Dragos Vinereanu, Nuno Cardim, Marie Moonen, Julien Tridetti, Andreea Calin, José Luis Zamorano, Tolga Ozyigit, Krasimira Hristova, Martin Penicka, Mai-Linh Nguyen Trung, Bernard Cosyns, Raluca Elena Dulgheru, Alexandra Maria Chitroceanu, Tadafumi Sugimoto, George Athanassopoulos, Luigi P. Badano, Nico Van de Veire, Roberto M. Lang, Andreas Hagendorff, Tsugu, Toshimitsu, Postolache, Adriana, Dulgheru, Raluca, Sugimoto, Tadafumi, Tridetti, Julien, Nguyen Trung, Mai-Linh, Piette, Caroline, Moonen, Marie, Manganaro, Roberta, Ilardi, Federica, Chitroceanu, Alexandra Maria, Sperlongano, Simona, Go, Yun Yun, Kacharava, George, Athanassopoulos, George D, Barone, Daniele, Baroni, Monica, Cardim, Nuno, Hagendorff, Andrea, Hristova, Krasimira, Lopez, Teresa, de la Morena, Gonzalo, Popescu, Bogdan A, Penicka, Martin, Ozyigit, Tolga, Rodrigo Carbonero, Jose David, van de Veire, Nico, Von Bardeleben, Ralph Stephan, Vinereanu, Drago, Zamorano, Jose Lui, Rosca, Monica, Calin, Andreea, Magne, Julien, Cosyns, Bernard, Galli, Elena, Donal, Erwan, Santoro, Ciro, Galderisi, Maurizio, Badano, Luigi P, Lang, Roberto M, Lancellotti, Patrizio, Tsugu, T., Postolache, A., Dulgheru, R., Sugimoto, T., Tridetti, J., Trung, M. -L. N., Piette, C., Moonen, M., Manganaro, R., Ilardi, F., Chitroceanu, A. M., Sperlongano, S., Go, Y. Y., Kacharava, G., Athanassopoulos, G. D., Barone, D., Baroni, M., Cardim, N., Hagendorff, A., Hristova, K., Lopez, T., de la Morena, G., Popescu, B. A., Penicka, M., Ozyigit, T., Carbonero, J. D. R., van de Veire, N., von Bardeleben, R. S., Vinereanu, D., Zamorano, J. L., Rosca, M., Calin, A., Magne, J., Cosyns, B., Galli, E., Donal, E., Santoro, C., Galderisi, M., Badano, L. P., Lang, R. M., Lancellotti, P., Clinical sciences, Cardio-vascular diseases, Cardiology, GIGA [Université Liège], Université de Liège, CHU Limoges, Neuroépidémiologie Tropicale (NET), CHU Limoges-Institut d'Epidémiologie Neurologique et de Neurologie Tropicale-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Laboratoire Traitement du Signal et de l'Image (LTSI), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Pontchaillou [Rennes], Centre d'Investigation Clinique [Rennes] (CIC), Université de Rennes (UR)-Hôpital Pontchaillou-Institut National de la Santé et de la Recherche Médicale (INSERM), GE Healthcare and Philips Healthcare, Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-CHU Limoges-Institut d'Epidémiologie Neurologique et de Neurologie Tropicale-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Tsugu, T, Postolache, A, Dulgheru, R, Sugimoto, T, Tridetti, J, Nguyen Trung, M, Piette, C, Moonen, M, Manganaro, R, Ilardi, F, Chitroceanu, A, Sperlongano, S, Go, Y, Kacharava, G, Athanassopoulos, G, Barone, D, Baroni, M, Cardim, N, Hagendorff, A, Hristova, K, Lopez, T, de la Morena, G, Popescu, B, Penicka, M, Ozyigit, T, Rodrigo Carbonero, J, van de Veire, N, Von Bardeleben, R, Vinereanu, D, Zamorano, J, Rosca, M, Calin, A, Magne, J, Cosyns, B, Galli, E, Donal, E, Santoro, C, Galderisi, M, Badano, L, Lang, R, and Lancellotti, P
- Subjects
Adult ,Male ,medicine.medical_specialty ,adult echocardiography ,deformation imaging ,Heart Ventricles ,030204 cardiovascular system & hematology ,Ventricular Function, Left ,Reference values ,2D echocardiography ,03 medical and health sciences ,0302 clinical medicine ,[SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system ,Internal medicine ,reference values ,Healthy volunteers ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,030212 general & internal medicine ,Endocardium ,Normal range ,Strain (chemistry) ,business.industry ,Myocardium ,Healthy subjects ,reference value ,Mean age ,General Medicine ,MED/11 - MALATTIE DELL'APPARATO CARDIOVASCOLARE ,Middle Aged ,Apex (geometry) ,Echocardiography ,Cardiology ,[SDV.IB]Life Sciences [q-bio]/Bioengineering ,Female ,business ,Large group ,Cardiology and Cardiovascular Medicine ,Human - Abstract
Aims To obtain the normal range for 2D echocardiographic (2DE) measurements of left ventricular (LV) layer-specific strain from a large group of healthy volunteers of both genders over a wide range of ages. Methods and results A total of 287 (109 men, mean age: 46 ± 14 years) healthy subjects were enrolled at 22 collaborating institutions of the EACVI Normal Reference Ranges for Echocardiography (NORRE) study. Layer-specific strain was analysed from the apical two-, three-, and four-chamber views using 2DE software. The lowest values of layer-specific strain calculated as ±1.96 standard deviations from the mean were −15.0% in men and −15.6% in women for epicardial strain, −16.8% and −17.7% for mid-myocardial strain, and −18.7% and −19.9% for endocardial strain, respectively. Basal-epicardial and mid-myocardial strain decreased with age in women (epicardial; P = 0.008, mid-myocardial; P = 0.003) and correlated with age (epicardial; r = −0.20, P = 0.007, mid-myocardial; r = −0.21, P = 0.006, endocardial; r = −0.23, P = 0.002), whereas apical-epicardial, mid-myocardial strain increased with the age in women (epicardial; P = 0.006, mid-myocardial; P = 0.03) and correlated with age (epicardial; r = 0.16, P = 0.04). End/Epi ratio at the apex was higher than at the middle and basal levels of LV in men (apex; 1.6 ± 0.2, middle; 1.2 ± 0.1, base 1.1 ± 0.1) and women (apex; 1.6 ± 0.1, middle; 1.1 ± 0.1, base 1.2 ± 0.1). Conclusion The NORRE study provides useful 2DE reference ranges for novel indices of layer-specific strain.
- Published
- 2020
16. Correlation between non-invasive myocardial work indices and main parameters of systolic and diastolic function
- Author
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Arnaud Ancion, Ciro Santoro, Roberto M. Lang, Krasimira Hristova, Dragos Vinereanu, Patrizio Lancellotti, Marie Moonen, Maurizio Galderisi, George Kacharava, José Luis Zamorano, Daniele Barone, Andreas Hagendorff, Julien Magne, Christophe Martinez, Bernard Cosyns, Nico Van de Veire, Monica Baroni, Tolga Ozyigit, Toshimitsu Tsugu, Nuno Cardim, Raluca Elena Dulgheru, Ralph Stephan von Bardeleben, Gonzalo de la Morena, Concetta Zito, Scipione Carerj, Luigi P. Badano, Elena Galli, Martin Penicka, George Athanassopoulos, Bogdan A. Popescu, Erwan Donal, Jose David Rodrigo Carbonero, Adriana Postolache, Federica Ilardi, Monica Rosca, Teresa López, Andreea Calin, Marianna Cicenia, Tadafumi Sugimoto, Roberta Manganaro, Stella Marchetta, Clinical sciences, Cardio-vascular diseases, Cardiology, Manganaro, Roberta, Marchetta, Stella, Dulgheru, Raluca, Sugimoto, Tadafumi, Tsugu, Toshimitsu, Ilardi, Federica, Cicenia, Marianna, Ancion, Arnaud, Postolache, Adriana, Martinez, Christophe, Kacharava, George, Athanassopoulos, George D, Barone, Daniele, Baroni, Monica, Cardim, Nuno, Hagendorff, Andrea, Hristova, Krasimira, Lopez, Teresa, de la Morena, Gonzalo, Popescu, Bogdan A, Penicka, Martin, Ozyigit, Tolga, Rodrigo Carbonero, Jose David, van de Veire, Nico, Von Bardeleben, Ralph Stephan, Vinereanu, Drago, Zamorano, Jose Lui, Rosca, Monica, Calin, Andreea, Moonen, Marie, Magne, Julien, Cosyns, Bernard, Galli, Elena, Donal, Erwan, Carerj, Scipione, Zito, Concetta, Santoro, Ciro, Galderisi, Maurizio, Badano, Luigi P, Lang, Roberto M, Lancellotti, Patrizio, Centre Hospitalier Universitaire de Liège (CHU-Liège), Service de cardiologie [Liège], CHU de Liège-Domaine Universitaire du Sart Tilman, Universität Leipzig [Leipzig], Hospital Univeristario Virgen de la Arrixaca, Johannes Gutenberg - Universität Mainz (JGU), University and Emergency Hospital, Universidad de Alcalá - University of Alcalá (UAH), Service de cardiologie [CHU Limoges], CHU Limoges, Neuroépidémiologie Tropicale (NET), Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-CHU Limoges-Institut d'Epidémiologie Neurologique et de Neurologie Tropicale-Institut National de la Santé et de la Recherche Médicale (INSERM), Academisch Ziekenhuis Vrije Universiteit Brussel, Service de cardiologie et maladies vasculaires [Rennes] = Cardiac, Thoracic, and Vascular Surgery [Rennes], CHU Pontchaillou [Rennes], CIC-IT Rennes, Hôpital Pontchaillou-Institut National de la Santé et de la Recherche Médicale (INSERM), University of Messina, Università degli studi di Napoli Federico II, GE Healthcare and Philips Healthcare, Service de cardiologie et maladies vasculaires, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou-CHU Pontchaillou [Rennes], Service de cardiologie et maladies vasculaires [CHU de Rennes], Manganaro, R, Marchetta, S, Dulgheru, R, Sugimoto, T, Tsugu, T, Ilardi, F, Cicenia, M, Ancion, A, Postolache, A, Martinez, C, Kacharava, G, Athanassopoulos, G, Barone, D, Baroni, M, Cardim, N, Hagendorff, A, Hristova, K, Lopez, T, de la Morena, G, Popescu, B, Penicka, M, Ozyigit, T, Rodrigo Carbonero, J, van de Veire, N, Von Bardeleben, R, Vinereanu, D, Zamorano, J, Rosca, M, Calin, A, Moonen, M, Magne, J, Cosyns, B, Galli, E, Donal, E, Carerj, S, Zito, C, Santoro, C, Galderisi, M, Badano, L, Lang, R, and Lancellotti, P
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Adult ,Male ,medicine.medical_specialty ,Systole ,adult echocardiography ,Diastole ,Speckle tracking echocardiography ,030204 cardiovascular system & hematology ,myocardial strain ,myocardial work ,speckle tracking echocardiography ,Ventricular Function, Left ,Correlation ,Ventricular Dysfunction, Left ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,030212 general & internal medicine ,Ejection fraction ,business.industry ,Work (physics) ,Stroke Volume ,MED/11 - MALATTIE DELL'APPARATO CARDIOVASCOLARE ,General Medicine ,Middle Aged ,medicine.anatomical_structure ,Blood pressure ,Echocardiography ,Ventricle ,Cardiology ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,Cardiology and Cardiovascular Medicine ,business - Abstract
Aims The present study sought to evaluate the correlation between indices of non-invasive myocardial work (MW) and left ventricle (LV) size, traditional and advanced parameters of LV systolic and diastolic function by 2D echocardiography (2DE). Methods and results A total of 226 (85 men, mean age: 45 ± 13 years) healthy subjects were enrolled at 22 collaborating institutions of the Normal Reference Ranges for Echocardiography (NORRE) study. Global work index (GWI), global constructive work (GCW), global work waste (GWW), and global work efficiency (GWE) were estimated from LV pressure-strain loops using custom software. Peak LV pressure was estimated non-invasively from brachial artery cuff pressure. LV size, parameters of systolic and diastolic function and ventricular-arterial coupling were measured by echocardiography. As advanced indices of myocardial performance, global longitudinal strain (GLS), global circumferential strain (GCS), and global radial strain (GRS) were obtained. On multivariable analysis, GWI was significantly correlated with GLS (standardized beta-coefficient = −0.23, P Conclusion The non-invasive MW indices show a good correlation with traditional 2DE parameters of myocardial systolic function and myocardial strain.
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- 2020
17. Impact of Advanced Extravascular Calcified Plaque on the Assessment of Coronary Stenosis Severity.
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Tsugu T, Tanaka K, Tsugu M, Nagatomo Y, and De Mey J
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- Humans, Male, Plaque, Atherosclerotic diagnostic imaging, Fractional Flow Reserve, Myocardial physiology, Computed Tomography Angiography, Middle Aged, Coronary Stenosis diagnostic imaging, Coronary Stenosis physiopathology, Severity of Illness Index, Coronary Angiography
- Abstract
Coronary computed tomography angiography (CCTA) and CT-derived fractional flow reserve (FFRCT) provide high diagnostic accuracy for coronary artery disease (CAD), consistent with invasive coronary angiography (ICA), the gold standard diagnostic technique. The presence of calcified components, however, complicates the interpretation of coronary stenosis severity. We present a case where there was a discrepant assessment of coronary stenosis severity between CCTA/FFRCT (indicating significant obstructive CAD) and ICA (showing no apparent obstructive CAD). CCTA/FFRCT revealed that the stenotic lesion, located in the middle segment of the left circumflex artery, was surrounded by plaque components. The proximal and distal portions of the stenotic lesion consisted of 80.9% luminal volume, 0.2% low-attenuation plaque, 13.4% intermediate-attenuation plaque, and 5.5% calcified plaque. In contrast, the stenotic lesion itself contained 50.0% luminal volume, 0.3% low-attenuation plaque, 26.7% intermediate-attenuation plaque, and 22.9% calcified plaque. Invasive coronary angiography showed no apparent obstructive CAD, implying that the lesions appearing as significant obstructive CAD on CCTA/FFRCT were likely overestimated due to the effects of extravascular calcified plaque. Advanced extravascular calcified plaque surrounding the lesion may cause several artifacts (such as blooming and/or beam hardening artifacts) and/or vasodilator dysfunction (either organic and/or functional), potentially leading to an overestimation of the severity of coronary stenosis in CCTA/FFRCT assessments.
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- 2024
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18. Discrepancy in Diagnosing Coronary Artery Occluded Lesion: CT-Derived Fractional Flow Reserve (FFRCT) Versus Invasive Coronary Angiography.
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Tsugu T, Tanaka K, Nagatomo Y, De Maeseneer M, and De Mey J
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- Humans, Coronary Vessels diagnostic imaging, Coronary Angiography, Tomography, X-Ray Computed, Coronary Occlusion, Fractional Flow Reserve, Myocardial, Percutaneous Coronary Intervention
- Abstract
Coronary computed tomography angiography (CCTA) and CT-derived fractional flow reserve (FFRCT) findings demonstrate high diagnostic accuracy, aligning consistently with invasive coronary angiography (ICA), the gold standard diagnostic technique for coronary artery disease. The differential diagnosis of total versus subtotal coronary occlusion is crucial in determining the appropriate treatment strategy. Subtotal coronary occlusions composed of vulnerable tissue can sometimes present as total coronary occlusions on ICA. This presentation can be inconsistent with findings from CCTA and FFRCT. This case report presents discrepant findings between CCTA, which indicated subtotal coronary occlusion, and ICA, which suggested total coronary occlusion. The stenotic lesion, filled with vulnerable tissue (low-attenuation plaque volume: 20.3 mm3 and intermediate-attenuation plaque volume: 71.6 mm3), could be dilated with a vasodilator during maximal hyperemia. This dilation facilitated the acquisition of CCTA and FFRCT images. We were able to diagnose subtotal coronary occlusion and identify the overall anatomical structure of the vessels prior to percutaneous coronary intervention (PCI). This allowed us to perform a successful and uncomplicated PCI.
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- 2024
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19. Impact of vessel morphology on CT-derived fractional-flow-reserve in non-obstructive coronary artery disease in right coronary artery.
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Tsugu T, Tanaka K, Belsack D, Nagatomo Y, Tsugu M, Argacha JF, Cosyns B, Buls N, De Maeseneer M, and De Mey J
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- Humans, Coronary Vessels diagnostic imaging, Predictive Value of Tests, Tomography, X-Ray Computed methods, Coronary Angiography methods, Computed Tomography Angiography methods, Severity of Illness Index, Coronary Artery Disease diagnostic imaging, Fractional Flow Reserve, Myocardial, Coronary Stenosis, Plaque, Atherosclerotic
- Abstract
Objectives: Computed tomography (CT)-derived fractional flow reserve (FFR
CT ) decreases continuously from proximal to distal segments of the vessel due to the influence of various factors even in non-obstructive coronary artery disease (NOCAD). It is known that FFRCT is dependent on vessel-length, but the relationship with other vessel morphologies remains to be explained., Purpose: To investigate morphological aspects of the vessels that influence FFRCT in NOCAD in the right coronary artery (RCA)., Methods: A total of 443 patients who underwent both FFRCT and invasive coronary angiography, with < 50% RCA stenosis, were evaluated. Enrolled RCA vessels were classified into two groups according to distal FFRCT : FFRCT ≤ 0.80 (n = 60) and FFRCT > 0.80 (n = 383). Vessel morphology (vessel length, lumen diameter, lumen volume, and plaque volume) and left-ventricular mass were assessed. The ratio of lumen volume and vessel length was defined as V/L ratio., Results: Whereas vessel-length was almost the same between FFRCT ≤ 0.80 and > 0.80, lumen volume and V/L ratio were significantly lower in FFRCT ≤ 0.80. Distal FFRCT correlated with plaque-related parameters (low-attenuation plaque, intermediate-attenuation plaque, and calcified plaque) and vessel-related parameters (proximal and distal vessel diameter, vessel length, lumen volume, and V/L ratio). Among all vessel-related parameters, V/L ratio showed the highest correlation with distal FFRCT (r = 0.61, p < 0.0001). Multivariable analysis showed that calcified plaque volume was the strongest predictor of distal FFRCT , followed by V/L ratio (β-coefficient = 0.48, p = 0.03). V/L ratio was the strongest predictor of a distal FFRCT ≤ 0.80 (cut-off 8.1 mm3 /mm, AUC 0.88, sensitivity 90.0%, specificity 76.7%, 95% CI 0.84-0.93, p < 0.0001)., Conclusions: Our study suggests that V/L ratio can be a measure to predict subclinical coronary perfusion disturbance., Clinical Relevance Statement: A novel marker of the ratio of lumen volume to vessel length (V/L ratio) is the strongest predictor of a distal CT-derived fractional flow reserve (FFRCT ) and may have the potential to improve the diagnostic accuracy of FFRCT ., Key Points: • Physiological FFRCT decline depends not only on vessel length but also on the lumen volume in non-obstructive coronary artery disease in the right coronary artery. • FFRCT correlates with plaque-related parameters (low-attenuation plaque, intermediate-attenuation plaque, and calcified plaque) and vessel-related parameters (proximal and distal vessel diameter, vessel length, lumen volume, and V/L ratio). • Of vessel-related parameters, V/L ratio is the strongest predictor of a distal FFRCT and an optimal cut-off value of 8.1 mm3 /mm., (© 2023. The Author(s).)- Published
- 2024
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20. Clinical and prognostic incremental value of FFRCT in screening of patients with obstructive coronary artery disease.
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Argacha JF, Motoc A, Lammens J, Vandeloo B, Tanaka K, Belsack D, Michiels V, Lochy S, Tsugu T, De Potter T, Thorrez Y, Magne J, De Mey J, and Cosyns B
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- Humans, Prognosis, Constriction, Pathologic, Coronary Angiography methods, Predictive Value of Tests, Computed Tomography Angiography, Coronary Vessels diagnostic imaging, Coronary Artery Disease diagnostic imaging, Coronary Artery Disease therapy, Fractional Flow Reserve, Myocardial, Coronary Stenosis diagnostic imaging, Coronary Stenosis therapy
- Abstract
Background: Coronary computed tomography angiography (CCTA) -derived fractional flow reserve (FFR
CT ) is recommended to evaluate the functional consequences of obstructive coronary artery disease (OCAD). Real-world incremental impacts of FFRCT use still remains under debate., Methods: 1601 patients with suspected OCAD on CCTA (>50 % stenosis), including 808 (50.5 %) patients evaluated by FFRCT , were included from a 2013-2021 registry. Propensity adjusted impacts of FFRCT use on rates of invasive coronary angiography (ICA), myocardial revascularization (MR) and post MR major adverse cardiac events (MACE) were reported, including a sensitivity analysis in severe OCAD (>70 % stenosis) (n = 450). Accuracy of numerical and comprehensive FFRCT interpretations in selection of patients requiring a MR were also compared., Results: 1160 (72,5 %) ICA, 559 (34.9 %) MR and 137 (24.5 %) post MR MACE occurred at 4.7 ± 1.9 years. FFRCT use was independently associated with decreased rate of ICA and MR (OR: 0.66; 95 % CI 0.53-0.83, p < 0.001 and OR: 0.71; 95 % CI 0.58-0.88, p < 0.01, respectively). Compared to the numerical interpretation, the FFRCT comprehensive assessment increased the ratio of MR per ICA (61.7 % vs 50.1 %, p < 0.01) and was more accurate in selection of patients requiring MR. FFRCT reduced post MR MACE (OR: 0.64; 95 % CI 0.43-0.96, p < 0.05). All these associations were no longer observed in severe OCAD., Conclusion: Implementing FFRCT in OCAD patients reduces ICA use, improves selection of patients requiring MR and reduces post MR MACE. However, these incremental values of FFRCT were no longer observed in severe OCAD., 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 © 2023 Society of Cardiovascular Computed Tomography. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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21. Variation of Computed Tomography-Derived Fractional Flow Reserve Related to Different Vessel Morphology.
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Tsugu T, Tanaka K, Nagatomo Y, De Maeseneer M, and De Mey J
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- Humans, Tomography, X-Ray Computed, Fractional Flow Reserve, Myocardial, Coronary Artery Disease
- Abstract
A total of 1492 outpatients with suspected coronary artery disease and who underwent computed tomography-derived fractional flow reserve analysis were examined. To investigate the effects of vessel morphology such as lumen diameter or volume on computed tomography-derived fractional flow reserve, nearly the same or subthreshold values affecting computed tomography-derived fractional flow reserve hemodynamics vessels were compared. Case 1 and 2 present almost the same vessel length (case 1 vs. case 2; 135.0 mm vs. 133.6 mm), low-attenuation plaque volume (0 mm3 vs. 0 mm3), intermediate attenuation plaque volume (12.5 mm3 vs. 35.5 mm3), and calcified plaque volume (4.7 mm3 vs. 0 mm3) in the right coronary artery. However, lumen volume (877.8 mm3 vs. 2443.7 mm3) and distal computed tomography-derived fractional flow reserve (0.79 vs. 0.96) were markedly different between the 2 patients. Computed tomography-derived fractional flow reserve depends not only on vessel length or plaque characteristics but also on lumen volume or vessel morphology.
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- 2023
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22. Impact of Plaque Components on Fractional Flow Reserve-Derived Computed Tomography in Severe Coronary Stenosis.
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Tsugu T, Tanaka K, Nagatomo Y, De Maeseneer M, and De Mey J
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- Male, Humans, Aged, Constriction, Pathologic, Tomography, X-Ray Computed, Coronary Angiography methods, Computed Tomography Angiography methods, Coronary Vessels diagnostic imaging, Predictive Value of Tests, Fractional Flow Reserve, Myocardial, Coronary Stenosis diagnostic imaging, Plaque, Atherosclerotic diagnostic imaging, Coronary Artery Disease
- Abstract
Fractional flow reserve derived from computed tomography decreases across severe coronary stenosis. The diagnostic accuracy of fractional flow reserve-derived computed tomography is high for severe coronary stenosis. In this report, we present a case of no significant fractional flow reserve-derived computed tomography changes even in severe coronary stenosis. A 75-year-old man showed severe stenosis (85% diameter stenosis) in the distal segment of the right coronary artery on both computed tomography angiography and invasive coronary angiography. However, fractional flow reserve-derived from computed tomography showed no significant changes from the proximal (0.97) to the distal (0.95) segments despite the presence of severe stenotic lesion. This patient had different features including the presence of a large acute marginal branch and significantly lower plaque components in the stenotic lesion compared with another patient who had coronary stenosis in the same segment. A large bifurcation branch and/or proportion of plaque components can affect fractional flow reserve-derived from computed tomography hemodynamics.
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- 2023
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23. Paradoxical Computed Tomography-Derived Fractional Flow Reserve Changes Due to Vessel Morphology and Constituents.
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Tsugu T, Tanaka K, Nagatomo Y, De Maeseneer M, and de Mey J
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- Humans, Coronary Angiography methods, Tomography, X-Ray Computed, Coronary Vessels diagnostic imaging, Coronary Vessels pathology, Constriction, Pathologic, Computed Tomography Angiography methods, Predictive Value of Tests, Severity of Illness Index, Fractional Flow Reserve, Myocardial, Coronary Stenosis diagnostic imaging, Coronary Artery Disease pathology
- Abstract
Computed tomography-derived fractional flow reserve decreases from the proximal to the distal with coronary stenosis. According to the principles of fluid dynamics, paradoxical computed tomography-derived fractional flow reserve changes require an unconventional vessel mor-phology and specific site of the vessels with a high driving force. Therefore, only a few articles have reported a paradoxical increase of computed tomography-derived fractional flow reserve. We present a case report of marked computed tomography-derived fractional flow reserve elevation in the middle left anterior descending artery with a severe coronary stenosis. Computed tomography-derived fractional flow reserve was 0.94 just proximal to the stenotic lesion and decreased to 0.65 at the maximum stenosis area but recovered to 0.80 in the distal segment. We speculated that the vessel morphology could have caused a pressure recovery phenomenon, resulting in paradoxical computed tomography-derived fractional flow reserve changes.
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- 2023
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24. Impact of ramus coronary artery on computed tomography derived fractional flow reserve (FFR CT ) in no apparent coronary artery disease.
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Tsugu T, Tanaka K, Nagatomo Y, Belsack D, Argacha JF, Cosyns B, De Maeseneer M, and De Mey J
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- Humans, Coronary Vessels diagnostic imaging, Severity of Illness Index, Tomography, X-Ray Computed, Coronary Angiography methods, Computed Tomography Angiography methods, Predictive Value of Tests, Coronary Artery Disease diagnostic imaging, Fractional Flow Reserve, Myocardial, Coronary Stenosis diagnostic imaging
- Abstract
Background: The ramus artery contributes to the development of turbulence, which may influence computed tomography (CT) derived fractional flow reserve (FFR
CT ) even without coronary artery disease (CAD). The relationship between ramus-induced turbulence and FFRCT is unclear., Method and Results: A total of 120 patients with <20% coronary stenosis assessed by both FFRCT and invasive coronary angiography were evaluated. The patients were divided into three groups: absent-ramus (n = 72), small-ramus that could not be analyzed by FFRCT (n = 18), and large-ramus that could be analyzed by FFRCT (n = 30). FFRCT measurements were performed at the proximal and distal segments of the left anterior descending (LAD), left circumflex (LCX), and ramus artery. With absent-ramus and small-absent ramus groups, FFRCT was measured at the distal end of the left main trunk at the same level for the proximal segments of the LAD and LCX. In absent-ramus group, proximal FFRCT showed no significant differences between three vessels (LAD = .96 ± .02; MID = .97 ± .02; LCX = .97 ± .02). However, in small and large-ramus groups, proximal FFRCT was significantly higher in the ramus artery than LAD and LCX (small-ramus, LAD = .95 ± .03, Ramus = .97 ± .02, LCX = .95 ± .03; large-ramus: LAD = .95 ± .03, Ramus = .98 ± .01; LCX = .96 ± .03; p < .05). A large ramus was associated with a higher prevalence of a distal FFRCT ≤.80 (odds ratio 7.0, 95% CI 1.2-40.1, p = .03). A proximal ramus diameter predicted distal FFRCT ≤.80 (cut-off 2.1 mm, AUC .76, sensitivity 100%, specificity 52%, 95% CI .61-.90)., Conclusions: The presence of a large-ramus artery may cause an FFRCT decline in no apparent CAD., (© 2022 Wiley Periodicals LLC.)- Published
- 2023
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25. Impact of coronary bifurcation angle on computed tomography derived fractional flow reserve in coronary vessels with no apparent coronary artery disease.
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Tsugu T, Tanaka K, Nagatomo Y, Belsack D, Devos H, Buls N, Cosyns B, Argacha JF, De Maeseneer M, and De Mey J
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- Humans, Coronary Vessels diagnostic imaging, Coronary Vessels anatomy & histology, Heart, Tomography, X-Ray Computed, Coronary Angiography methods, Computed Tomography Angiography methods, Predictive Value of Tests, Severity of Illness Index, Coronary Artery Disease diagnostic imaging, Fractional Flow Reserve, Myocardial, Coronary Stenosis
- Abstract
Objectives: Computed tomography (CT) derived fractional flow reserve (FFR
CT ) decreases from the proximal to the distal part due to a variety of factors. The energy loss due to the bifurcation angle may potentially contribute to a progressive decline in FFRCT . However, the association of the bifurcation angle with FFRCT is still not entirely understood. This study aimed to investigate the impact of various bifurcation angles on FFRCT decline below the clinically crucial relevance of 0.80 in vessels with no apparent coronary artery disease (CAD)., Methods: A total of 83 patients who underwent both CT angiography including FFRCT and invasive coronary angiography, exhibiting no apparent CAD were evaluated. ΔFFRCT was defined as the change in FFRCT from the proximal to the distal in the left anterior descending artery (LAD) and left circumflex artery (LCX). The bifurcation angle was calculated from three-dimensional volume rendered images. Vessel morphology and plaque characteristics were also assessed., Results: ΔFFRCT significantly correlated with the bifurcation angle (LAD angle, r = 0.35, p = 0.001; LCX angle, r = 0.26, p = 0.02) and vessel length (LAD angle, r = 0.30, p = 0.005; LCX angle, r = 0.49, p < 0.0001). In LAD, vessel length was the strongest predictor for distal FFRCT of ≤ 0.80 (β-coefficient = 0.55, p = 0.0003), immediately followed by the bifurcation angle (β-coefficient = 0.24, p = 0.02). The bifurcation angle was a good predictor for a distal FFRCT ≤ 0.80 (LAD angle, cut-off 31.0°, AUC 0.70, sensitivity 74%, specificity 68%; LCX angle, cut-off 52.6°, AUC 0.86, sensitivity 88%, specificity 85%)., Conclusions: In vessels with no apparent CAD, vessel length was the most influential factor on FFRCT , directly followed by the bifurcation angle., Key Points: • Both LAD and LCX bifurcation angles are factors influencing FFRCT . • Bifurcation angle is one of the predictors of a distal FFRCT of ≤ 0.80 and an optimal cut-off value of 31.0° for the LAD and 52.6° for the LCX. • Bifurcation angle should be taken into consideration when interpreting numerical values of FFRCT ., (© 2022. The Author(s).)- Published
- 2023
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26. Effects of left ventricular mass on computed tomography derived fractional flow reserve in significant obstructive coronary artery disease.
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Tsugu T, Tanaka K, Belsack D, Devos H, Nagatomo Y, Michiels V, Argacha JF, Cosyns B, Buls N, De Maeseneer M, and De Mey J
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- Computed Tomography Angiography, Coronary Angiography methods, Coronary Vessels diagnostic imaging, Humans, Predictive Value of Tests, Severity of Illness Index, Tomography, X-Ray Computed, Coronary Artery Disease diagnostic imaging, Coronary Stenosis diagnostic imaging, Fractional Flow Reserve, Myocardial
- Abstract
Background: In significant obstructive coronary artery disease (SOCAD), a mismatch in assessment of severity of coronary artery stenosis may occur between invasive coronary angiography (ICA) and computed tomography (CT) derived fractional flow reserve (FFR
CT ). The present study aimed to identify the factors giving an FFRCT > 0.80 and leading to an underestimation of coronary artery severity in SOCAD vessels., Methods: A total of 141 consecutive patients who underwent both CT angiography including FFRCT and ICA, the latter showing >75% coronary artery stenosis were evaluated. Vessels were divided into two groups according to FFRCT at the distal aspect of the vessel: FFRCT > 0.80 (n = 12) and FFRCT ≤ 0.80 (n = 153). Vessel morphology, plaque characteristics, left-ventricular (LV) wall thickness at each site of the myocardium, and LV mass were also assessed., Results: LV myocardium-related parameters including LV wall thickness (base, middle, apex, average, and maximal), LV mass, and LV mass index were higher in FFRCT > 0.80, whereas vessel-related parameters including, vessel morphology and plaque characteristics were not significantly different between >0.80 and < 0.80. Vessel morphology and plaque characteristics had no effect on FFRCT , whereas maximum LV wall thickness, LV mass, and LV mass index influenced FFRCT . LV mass index was the strongest predictor of distal FFRCT > 0.80 with an area under the curve of 0.81, and an optimal cut-off value of 66.5 g/m2 (sensitivity 77.8%, specificity 89.6%)., Conclusions: The presence of a high LV mass is a major cause for underestimation of coronary artery severity on FFRCT in SOCAD vessels. LV myocardium-related parameters should be considered when interpreting numerical values of FFRCT ., (Copyright © 2022 Elsevier B.V. All rights reserved.)- Published
- 2022
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27. Paradoxical changes of coronary computed tomography derived fractional flow reserve.
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Tsugu T, Tanaka K, Nagatomo Y, Belsack D, De Maeseneer M, and De Mey J
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- Computed Tomography Angiography methods, Coronary Angiography methods, Coronary Vessels diagnostic imaging, Humans, Predictive Value of Tests, Severity of Illness Index, Tomography, X-Ray Computed, Coronary Artery Disease diagnostic imaging, Coronary Stenosis, Fractional Flow Reserve, Myocardial
- Abstract
A total of 1335 outpatients with suspected coronary artery disease and who underwent computed tomography derived fractional flow reserve (FFR
CT ) analysis were examined. Only four patients showed reverse increase of FFRCT from the proximal to the distal vessel and all of them had a large ramus artery (RAM). Of all parameters (vessel length, lumen volume, plaque volume, and left ventricular mass), only the bifurcation angle was significantly higher in reverse increase of FFRCT with RAM group (106.0 ± 15.8°) than normal FFRCT with RAM group (82.6 ± 21.7°) and normal FFRCT without RAM group (66.9 ± 21.1°)., (© 2022 Wiley Periodicals LLC.)- Published
- 2022
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28. Differences in fractional flow reserve derived from coronary computed tomography angiography according to coronary artery bifurcation angle.
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Tsugu T and Tanaka K
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- Computed Tomography Angiography methods, Coronary Angiography methods, Coronary Vessels diagnostic imaging, Humans, Predictive Value of Tests, Severity of Illness Index, Coronary Artery Disease diagnostic imaging, Coronary Stenosis diagnostic imaging, Fractional Flow Reserve, Myocardial
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- 2022
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29. Impact of collateral circulation with fractional flow reserve derived from coronary computed tomography angiography.
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Tsugu T, Tanaka K, Belsack D, Jean-François A, and Mey J
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- Aged, Humans, Male, Collateral Circulation, Computed Tomography Angiography, Coronary Angiography methods, Fractional Flow Reserve, Myocardial
- Published
- 2021
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30. Impact of vascular morphology and plaque characteristics on computed tomography derived fractional flow reserve in early stage coronary artery disease.
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Tsugu T, Tanaka K, Belsack D, Devos H, Nagatomo Y, Michiels V, Argacha JF, Cosyns B, Buls N, De Maeseneer M, and De Mey J
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- Computed Tomography Angiography, Coronary Angiography, Coronary Vessels diagnostic imaging, Humans, Predictive Value of Tests, Severity of Illness Index, Tomography, X-Ray Computed, Coronary Artery Disease diagnostic imaging, Coronary Stenosis diagnostic imaging, Fractional Flow Reserve, Myocardial
- Abstract
Background: Computed-tomography (CT) derived fractional-flow-reserve (FFR
CT ) gradually may decrease from proximal to distal vessels even without apparent coronary artery disease (CAD). It may be unclear whether the decrease in FFRCT at the distal coronal artery is physiological or due to stenosis. We decided to study predictive factors of an FFRCT decline below the pathological value of 0.80 in no-apparent CAD., Methods: A total of 150 consecutive patients who had both CT angiography coupled to FFRCT analysis and invasive angiogram showing < 20% coronary stenosis were included. Vessels were divided into two groups according to FFRCT at the distal vessel: FFRCT > 0.80 (n = 317) and FFRCT ≤ 0.80 (n = 114). ΔFFRCT was defined as the change in FFRCT from proximal to distal vessel. Vessel morphology (vessel length and lumen volume) and plaque characteristics [low-attenuation plaque volume, intermediate-attenuation (IAP) plaque volume, and calcified plaque volume] were evaluated., Results: FFRCT decreased from proximal to distal for the three major vessels in both FFRCT > 0.80 and FFRCT ≤ 0.80. Compared to FFRCT > 0.80, IAP volume was significantly higher in all three major vessels in FFRCT ≤ 0.80. ΔFFRCT was correlated with vessel length and lumen volume in FFRCT > 0.80, whereas ΔFFRCT was correlated with IAP volume in FFRCT ≤ 0.80. IAP volume above 44.8 mm3 was the strongest predictor of distal FFRCT of ≤ 0.80., Conclusions: The presence of IAP is a major predictor of gradual decrease of FFRCT below 0.80 in no-apparent CAD vessels. Vessel morphology and plaque characteristics should be considered when interpreting FFRCT ., (Copyright © 2021 Elsevier B.V. All rights reserved.)- Published
- 2021
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31. Layer-specific longitudinal strain predicts left ventricular maximum wall thickness in patients with hypertrophic cardiomyopathy.
- Author
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Tsugu T, Nagatomo Y, Dulgheru R, and Lancellotti P
- Subjects
- Echocardiography, Female, Heart Ventricles diagnostic imaging, Humans, Male, Stroke Volume, Cardiomyopathy, Hypertrophic diagnosis, Cardiomyopathy, Hypertrophic diagnostic imaging, Ventricular Function, Left
- Abstract
Aims: The aim of this study was (a) to clarify the detailed mechanisms of structural and functional abnormalities of myocardial tissue in hypertrophic cardiomyopathy (HCM) using layer-specific strain (LSS) and compare it with healthy subjects (b) to investigate the diagnostic accuracy of LSS for HCM., Methods and Results: Forty-one patients with HCM and preserved left ventricular ejection fraction (LVEF; 66% male, 52 ± 18 years, LVEF 62.9% ± 3.7%) and 41 controls matched for age and sex (66% male, 52 ± 20 years, LVEF 63.5% ± 8.2%) underwent 2D-speckle tracking echocardiography. Absolute values of LSS were globally lower and the ratio of endocardial/epicardial layer (End/Epi ratio) was higher in HCM. LSS gradually increased from the epicardial toward the endocardial layer at all chamber views and at all levels of the LV. LSS and End/Epi ratio at the apex were higher than those at the middle or basal level of the LV. End/Epi ratio was correlated with LV maximal wall thickness both controls (r = .35, P = .03) and HCM (r = .81, P < .001). End/Epi ratio was an independent factor associated with LV maximal wall thickness (β = 0.96, P < .001). A higher End/Epi ratio (≥1.31) was associated with diagnostic criteria for HCM (sensitivity 98%, specificity 95%, area under the curve 0.99, P < .001)., Conclusion: LSS has the potential for unraveling the mechanism of impaired LV wall motion in HCM and to accurately detect HCM., (© 2021 Wiley Periodicals LLC.)
- Published
- 2021
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32. Very delayed sinus arrest during complete remission of diffuse large B-cell lymphoma invading right atrium.
- Author
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Tsugu T, Nagatomo Y, Matsuyama E, Lancellotti P, and Mitamura H
- Subjects
- Antineoplastic Combined Chemotherapy Protocols therapeutic use, Bradycardia etiology, Cyclophosphamide therapeutic use, Doxorubicin therapeutic use, Electrocardiography, Female, Fluorodeoxyglucose F18, Heart Atria diagnostic imaging, Heart Atria pathology, Heart Neoplasms diagnostic imaging, Heart Neoplasms pathology, Heart Neoplasms therapy, Humans, Lymphoma, Large B-Cell, Diffuse diagnostic imaging, Lymphoma, Large B-Cell, Diffuse pathology, Lymphoma, Large B-Cell, Diffuse therapy, Middle Aged, Neoplasm Invasiveness, Positron Emission Tomography Computed Tomography, Prednisone therapeutic use, Remission Induction, Rituximab therapeutic use, Uterine Neoplasms diagnostic imaging, Uterine Neoplasms therapy, Vincristine therapeutic use, Heart Neoplasms complications, Lymphoma, Large B-Cell, Diffuse complications, Sinus Arrest, Cardiac etiology, Uterine Neoplasms complications
- Abstract
Diffuse large B-cell lymphoma (DLBCL)-associated arrhythmias may be due to cardiac involvement or may be chemotherapy-induced. There have been no reports of significant arrhythmias with normal cardiac function occurring during the complete remission of DLBCL. A 57-year-old female, who had had no history of abnormal electrocardiograms (ECGs) in annual medical checkups, was admitted to our hospital because of low-grade fever, night sweats, and weight loss. On admission, ECG revealed a variable rhythm consisting of sinus beats and occasional escape beats. Computed tomography and 18F-fluorodeoxyglucose positron emission tomography and computed tomography (FDG-PET/CT) revealed two masses in the right atrium (RA) and the uterus. Total hysterectomy was performed, and pathological findings were consistent with diffuse large B-cell lymphoma (DLBCL). Chemotherapy (R-CHOP) was initiated. After two chemotherapy cycles, RA tumors disappeared, and bradyarrhythmia simultaneously converted to sinus rhythm without antiarrhythmic drug therapy. Six months after completion of chemotherapy, FDG-PET/CT revealed negative uptake in the RA and the uterus. The patient attained complete remission of DLBCL, but ECG showed bradycardia because of sinus arrest. Our case suggests that DLBCL-induced arrhythmia can occur even after its remission and should be monitored.
- Published
- 2021
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33. The significance of three-dimensional transesophageal echocardiography assessment for aortic wall papillary fibroelastoma.
- Author
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Tsugu T, Nagatomo Y, Endo J, Yamazaki M, Shimizu H, Mitamura H, and Lancellotti P
- Subjects
- Female, Humans, Middle Aged, Aorta, Thoracic diagnostic imaging, Aortic Valve diagnostic imaging, Cardiac Papillary Fibroelastoma diagnosis, Echocardiography, Three-Dimensional methods, Echocardiography, Transesophageal methods
- Published
- 2020
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34. Preoperative right ventricular strain predicts sustained right ventricular dysfunction after balloon pulmonary angioplasty in patients with chronic thromboembolic pulmonary hypertension.
- Author
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Tsugu T, Kawakami T, Kataoka M, Endo J, Kohno T, Itabashi Y, Fukuda K, and Murata M
- Subjects
- Chronic Disease, Heart Ventricles, Humans, Pulmonary Artery, Angioplasty, Balloon, Hypertension, Pulmonary diagnosis, Pulmonary Embolism complications, Ventricular Dysfunction, Right diagnostic imaging
- Abstract
Aims: Balloon pulmonary angioplasty (BPA) improves hemodynamics and exercise tolerance in patients with chronic thromboembolic pulmonary hypertension (CTEPH). However, its diagnostic and predictive values remain unclear. We investigated the diagnostic and predictive values of BPA by assessing the mechanism of right ventricular (RV) dysfunction., Methods and Results: Hemodynamic improvement was maintained over 6 months in 99 patients with CTEPH who underwent BPA. Notably, 57 of 99 patients showed normalization of pulmonary vascular resistance (PVR) after BPA. The RV mid free wall longitudinal strain (RVMFS) was inversely correlated with the 6-min walk distance (r = -.35, P = .01) and serum levels of high-sensitivity cardiac troponin T (hs-cTNT) (r = -.39, P = .004) 6 months post-BPA in the PVR-normalized group. Among all variables analyzed, only the pre-BPA RVMFS was correlated with the post-BPA RVMFS (r = .40, P = .001), and the pre-BPA RVMFS (<-15.8%) was the strongest predictor of post-BPA normalization of RVMFS (area under the curve 0.80, P = .01, sensitivity 89%, and specificity 63%). The immediate post-BPA RVMFS showed worsening over 6 months after the procedure (-25.8% to -21.1%) in patients with high serum hs-cTNT levels (>0.0014 ng/mL). In contrast, we observed an improvement in these values in those with low serum hs-cTNT levels (-23.6% to -24.4%)., Conclusion: RVMFS of -15.8% may be a useful cutoff value to categorize the refractory and non-refractory stages of disease. Sustained serum hs-cTNT elevation post-BPA indicates subclinical RV myocardial injury, with resultant RVMFS deterioration and poor exercise tolerance., (© 2020 Wiley Periodicals LLC.)
- Published
- 2020
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35. Diverse echocardiographic changes in the course of hypoxia due to acute exacerbation of idiopathic pulmonary fibrosis.
- Author
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Tsugu T, Nagatomo Y, Koh H, Tanaka K, and Lancellotti P
- Subjects
- Aged, Combined Modality Therapy, Disease Progression, Fatal Outcome, Glucocorticoids administration & dosage, Glucocorticoids therapeutic use, Humans, Hypertension, Pulmonary physiopathology, Hypoxia complications, Hypoxia drug therapy, Hypoxia therapy, Male, Methylprednisolone administration & dosage, Methylprednisolone therapeutic use, Oxygen therapeutic use, Oxygen Saturation, Pulse Therapy, Drug methods, Tomography, X-Ray Computed methods, Tricuspid Valve Insufficiency physiopathology, Echocardiography methods, Hypertension, Pulmonary etiology, Hypoxia diagnostic imaging, Idiopathic Pulmonary Fibrosis complications
- Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive parenchymal disease. Pulmonary hypertension (PH) is a potentially lethal complication in the course of IPF. In almost all cases of IPF-PH there is gradual deterioration, but patients can also decline suddenly due to hypoxia. This case report describes the different echocardiographic changes observed in 2 episodes of hypoxic attack in a 73-year-old man. On admission, the tricuspid regurgitation peak gradient (TRPG) was 21 mmHg and the oxygen saturation rate was 94% (O2: 4 L/min). Five days after admission, the TRPG and oxygen saturation rate deteriorated [TRPG: 85 mmHg, oxygen saturation: 72% (O2; 4 L/min)]. He was diagnosed with IPF-PH due to hypoxic pulmonary vasoconstriction. Oxygen therapy and methylprednisolone pulse therapy (MPT) were administered. Five days after the MPT treatment, the hypoxia and PH improved [TRPG: 21 mmHg, oxygen saturation: 95% (O2: 4 L/min)]. Acute exacerbation of IPF (IPF-AE) occurred 20 days after the MPT, and a second dose of MPT was administered. The TRPG and oxygen saturation rate did not decline [TRPG: 27 mmHg, oxygen saturation: 94% (O2: 4 L/min)]. The patient died 10 days after the second dose of MPT. Divergent echocardiographic findings were observed during the deterioration of IPF-AE in the presence of IPF-PH.
- Published
- 2020
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36. Echocardiographic reference ranges for normal left ventricular layer-specific strain: results from the EACVI NORRE study.
- Author
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Tsugu T, Postolache A, Dulgheru R, Sugimoto T, Tridetti J, Nguyen Trung ML, Piette C, Moonen M, Manganaro R, Ilardi F, Chitroceanu AM, Sperlongano S, Go YY, Kacharava G, Athanassopoulos GD, Barone D, Baroni M, Cardim N, Hagendorff A, Hristova K, Lopez T, de la Morena G, Popescu BA, Penicka M, Ozyigit T, Rodrigo Carbonero JD, van de Veire N, Von Bardeleben RS, Vinereanu D, Zamorano JL, Rosca M, Calin A, Magne J, Cosyns B, Galli E, Donal E, Santoro C, Galderisi M, Badano LP, Lang RM, and Lancellotti P
- Subjects
- Adult, Endocardium, Female, Humans, Male, Middle Aged, Myocardium, Reference Values, Ventricular Function, Left, Echocardiography, Heart Ventricles diagnostic imaging
- Abstract
Aims: To obtain the normal range for 2D echocardiographic (2DE) measurements of left ventricular (LV) layer-specific strain from a large group of healthy volunteers of both genders over a wide range of ages., Methods and Results: A total of 287 (109 men, mean age: 46 ± 14 years) healthy subjects were enrolled at 22 collaborating institutions of the EACVI Normal Reference Ranges for Echocardiography (NORRE) study. Layer-specific strain was analysed from the apical two-, three-, and four-chamber views using 2DE software. The lowest values of layer-specific strain calculated as ±1.96 standard deviations from the mean were -15.0% in men and -15.6% in women for epicardial strain, -16.8% and -17.7% for mid-myocardial strain, and -18.7% and -19.9% for endocardial strain, respectively. Basal-epicardial and mid-myocardial strain decreased with age in women (epicardial; P = 0.008, mid-myocardial; P = 0.003) and correlated with age (epicardial; r = -0.20, P = 0.007, mid-myocardial; r = -0.21, P = 0.006, endocardial; r = -0.23, P = 0.002), whereas apical-epicardial, mid-myocardial strain increased with the age in women (epicardial; P = 0.006, mid-myocardial; P = 0.03) and correlated with age (epicardial; r = 0.16, P = 0.04). End/Epi ratio at the apex was higher than at the middle and basal levels of LV in men (apex; 1.6 ± 0.2, middle; 1.2 ± 0.1, base 1.1 ± 0.1) and women (apex; 1.6 ± 0.1, middle; 1.1 ± 0.1, base 1.2 ± 0.1)., Conclusion: The NORRE study provides useful 2DE reference ranges for novel indices of layer-specific strain., (Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2020. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2020
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37. Myocardial Function in Patients With Radiation-Associated Aortic Stenosis Undergoing Transcatheter Aortic Valve Replacement: A Layer-Specific Strain Analysis Study.
- Author
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Martinez C, Cicenia M, Sprynger M, Postolache A, Ilardi F, Dulgheru R, Radermecker M, Esposito G, Marechal P, Marechal V, Donis N, Tridetti J, Nguyen Trung ML, Sugimoto T, Tsugu T, Go YY, Coisne A, Montaigne D, Fattouch K, Nchimi A, Oury C, and Lancellotti P
- Subjects
- Aortic Valve diagnostic imaging, Aortic Valve physiopathology, Aortic Valve radiation effects, Aortic Valve Stenosis diagnostic imaging, Aortic Valve Stenosis etiology, Aortic Valve Stenosis physiopathology, Echocardiography, Humans, Radiation Injuries diagnostic imaging, Radiation Injuries etiology, Radiation Injuries physiopathology, Radiotherapy adverse effects, Recovery of Function, Retrospective Studies, Severity of Illness Index, Time Factors, Treatment Outcome, Ventricular Dysfunction, Left diagnostic imaging, Ventricular Dysfunction, Left etiology, Aortic Valve surgery, Aortic Valve Stenosis surgery, Radiation Injuries surgery, Stroke Volume, Transcatheter Aortic Valve Replacement adverse effects, Ventricular Dysfunction, Left physiopathology, Ventricular Function, Left
- Published
- 2020
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- View/download PDF
38. Correlation between non-invasive myocardial work indices and main parameters of systolic and diastolic function: results from the EACVI NORRE study.
- Author
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Manganaro R, Marchetta S, Dulgheru R, Sugimoto T, Tsugu T, Ilardi F, Cicenia M, Ancion A, Postolache A, Martinez C, Kacharava G, Athanassopoulos GD, Barone D, Baroni M, Cardim N, Hagendorff A, Hristova K, Lopez T, de la Morena G, Popescu BA, Penicka M, Ozyigit T, Rodrigo Carbonero JD, van de Veire N, Von Bardeleben RS, Vinereanu D, Zamorano JL, Rosca M, Calin A, Moonen M, Magne J, Cosyns B, Galli E, Donal E, Carerj S, Zito C, Santoro C, Galderisi M, Badano LP, Lang RM, and Lancellotti P
- Subjects
- Adult, Diastole, Echocardiography, Humans, Male, Middle Aged, Stroke Volume, Systole, Ventricular Dysfunction, Left diagnostic imaging, Ventricular Function, Left
- Abstract
Aims: The present study sought to evaluate the correlation between indices of non-invasive myocardial work (MW) and left ventricle (LV) size, traditional and advanced parameters of LV systolic and diastolic function by 2D echocardiography (2DE)., Methods and Results: A total of 226 (85 men, mean age: 45 ± 13 years) healthy subjects were enrolled at 22 collaborating institutions of the Normal Reference Ranges for Echocardiography (NORRE) study. Global work index (GWI), global constructive work (GCW), global work waste (GWW), and global work efficiency (GWE) were estimated from LV pressure-strain loops using custom software. Peak LV pressure was estimated non-invasively from brachial artery cuff pressure. LV size, parameters of systolic and diastolic function and ventricular-arterial coupling were measured by echocardiography. As advanced indices of myocardial performance, global longitudinal strain (GLS), global circumferential strain (GCS), and global radial strain (GRS) were obtained. On multivariable analysis, GWI was significantly correlated with GLS (standardized beta-coefficient = -0.23, P < 0.001), ejection fraction (EF) (standardized beta-coefficient = 0.15, P = 0.02), systolic blood pressure (SBP) (standardized beta-coefficient = 0.56, P < 0.001) and GRS (standardized beta-coefficient = 0.19, P = 0.004), while GCW was correlated with GLS (standardized beta-coefficient = -0.55, P < 0.001), SBP (standardized beta-coefficient = 0.71, P < 0.001), GRS (standardized beta-coefficient = 0.11, P = 0.02), and GCS (standardized beta-coefficient = -0.10, P = 0.01). GWE was directly correlated with EF and inversely correlated with Tei index (standardized beta-coefficient = 0.18, P = 0.009 and standardized beta-coefficient = -0.20, P = 0.004, respectively), the opposite occurred for GWW (standardized beta-coefficient =--0.14, P = 0.03 and standardized beta-coefficient = 0.17, P = 0.01, respectively)., Conclusion: The non-invasive MW indices show a good correlation with traditional 2DE parameters of myocardial systolic function and myocardial strain., (Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2019. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2020
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39. Giant Papillary Fibroelastoma Attached to the Left Atrial Septum, Near the Foramen Ovale.
- Author
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Tsugu T, Nagatomo Y, Murata M, and Iwanaga S
- Subjects
- Aged, Cardiac Papillary Fibroelastoma surgery, Cardiac Surgical Procedures methods, Echocardiography, Transesophageal, Female, Humans, Severity of Illness Index, Atrial Septum diagnostic imaging, Cardiac Papillary Fibroelastoma diagnosis, Foramen Ovale diagnostic imaging
- Published
- 2020
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- View/download PDF
40. Impact of aortic stenosis on layer-specific longitudinal strain: relationship with symptoms and outcome.
- Author
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Ilardi F, Marchetta S, Martinez C, Sprynger M, Ancion A, Manganaro R, Sugimoto T, Tsugu T, Postolache A, Piette C, Cicenia M, Esposito G, Galderisi M, Oury C, Dulgheru R, and Lancellotti P
- Subjects
- Aged, Aged, 80 and over, Echocardiography, Endocardium diagnostic imaging, Female, Humans, Male, Middle Aged, Stroke Volume, Ventricular Function, Left, Aortic Valve Stenosis diagnostic imaging, Ventricular Dysfunction, Left
- Abstract
Aims: The present study sought to assess the impact of aortic stenosis (AS) on myocardial function as assessed by layer-specific longitudinal strain (LS) and its relationship with symptoms and outcome., Methods and Results: We compared 211 patients (56% males, mean age 73 ± 12 years) with severe AS and left ventricular ejection fraction (LVEF) ≥50% (114 symptomatic, 97 asymptomatic) with 50 controls matched for age and sex. LS was assessed from endocardium, mid-myocardium, and epicardium by 2D speckle-tracking echocardiography. Despite similar LVEF, multilayer strain values were significantly lower in symptomatic patients, compared to asymptomatic and controls [global LS: 17.9 ± 3.4 vs. 19.1 ± 3.1 vs. 20.7 ± 2.1%; endocardial LS: 20.1 ± 4.9 vs. 21.7 ± 4.2 vs. 23.4 ± 2.5%; epicardial LS: 15.8 ± 3.1 vs. 16.8 ± 2.8 vs. 18.3 ± 1.8%; P < 0.001 for all]. On multivariable logistic regression analysis, endocardial LS was independently associated to symptoms (P = 0.012), together with indexed left atrial volume (P = 0.006) and LV concentric remodelling (P = 0.044). During a mean follow-up of 22 months, 33 patients died of a cardiovascular event. On multivariable Cox-regression analysis, age (P = 0.029), brain natriuretic peptide values (P = 0.003), LV mass index (P = 0.0065), LV end-systolic volume (P = 0.012), and endocardial LS (P = 0.0057) emerged as independently associated with cardiovascular death. The best endocardial LS values associated with outcome was 20.6% (sensitivity 70%, specificity 52%, area under the curve = 0.626, P = 0.022). Endocardial LS (19.1 ± 3.3 vs. 20.7 ± 3.3, P = 0.02) but not epicardial LS (15.2 ± 2.8 vs. 15.9 ± 2.5, P = 0.104) also predicted the outcome in patients who were initially asymptomatic., Conclusion: In patients with severe AS, LS impairment involves all myocardial layers and is more prominent in the advanced phases of the disease, when the symptoms occur. In this setting, the endocardial LS is independently associated with symptoms and patient outcome., (Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2019. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2020
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41. Pulmonary Hypertension with Valvular Heart Disease: When to Treat the Valve Disease and When to Treat the Pulmonary Hypertension.
- Author
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Martinez C, Tsugu T, Sugimoto T, and Lancellotti P
- Subjects
- Heart Diseases, Heart Valve Diseases surgery, Humans, Hypertension, Pulmonary surgery, Randomized Controlled Trials as Topic, Echocardiography, Stress, Heart Valve Diseases diagnostic imaging, Hypertension, Pulmonary diagnostic imaging, Practice Guidelines as Topic
- Abstract
Purpose of Review: This article will review the current guidelines for therapeutic intervention in (pulmonary hypertension) PH related to left heart disease (PH-LHD)., Recent Findings: The 6th World Symposium on Pulmonary Hypertension (WSPH) recommended that the mean pulmonary artery pressure (mPAP) should be lowered to 20 mmHg. In several randomized controlled trials performed in patients with PH-LHD, pulmonary arterial hypertension (PAH)-specific drug therapy demonstrated no evidence of beneficial effects. Furthermore, in the sildenafil for improving outcomes after valvular correction (SIOVAC) trial, the use of sildenafil in the context of PH post-valvular heart disease (VHD) intervention is associated with an increased risk of clinical deterioration and death. Therefore, medical therapy such as PAH-specific drugs is still not recommended in PH-LHD. The principle of PH-LHD therapy is the treatment of underlying VHD. It is crucial to undergo surgical intervention at an appropriate time prior the development of potentially irreversible PH. Stress echocardiography (SE) is helpful to define symptoms and can be useful to assess the systolic pulmonary artery pressure (SPAP) and stratify severity of VHD. This comprehensive review of the literature highlights the role of SE imaging to assess VHD and is needed for the asymptomatic patients with severe VHD or symptomatic patients with non-severe VHD in the context of PH-LHD. The focus of patient evaluation should be on identifying patients with significant underlying valvular heart disease and referring in a timely manner for VHD treatment per society guidelines as pharmacologic pulmonary vasodilator therapy for PH-LHD has not shown efficacy as seen in other forms of PH.
- Published
- 2019
- Full Text
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42. Biventricular takotsubo cardiomyopathy with asymmetrical wall motion abnormality between left and right ventricle: a report of new case and literature review.
- Author
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Tsugu T, Nagatomo Y, Nakajima Y, Kageyama T, Endo J, Itabashi Y, and Kawakami T
- Subjects
- Adrenergic beta-Antagonists therapeutic use, Aged, Angiotensin II Type 1 Receptor Blockers therapeutic use, Anti-Arrhythmia Agents therapeutic use, Atrial Fibrillation complications, Atrial Fibrillation diagnosis, Atrial Fibrillation drug therapy, Atrial Fibrillation physiopathology, Coronary Angiography, Digoxin therapeutic use, Diuretics therapeutic use, Echocardiography, Electrocardiography, Female, Heart Failure drug therapy, Heart Failure etiology, Heart Failure physiopathology, Humans, Tachycardia complications, Tachycardia diagnosis, Tachycardia drug therapy, Tachycardia physiopathology, Takotsubo Cardiomyopathy complications, Takotsubo Cardiomyopathy physiopathology, Ventricular Dysfunction, Left complications, Ventricular Dysfunction, Left physiopathology, Ventricular Dysfunction, Right complications, Ventricular Dysfunction, Right physiopathology, Heart Failure diagnostic imaging, Takotsubo Cardiomyopathy diagnostic imaging, Ventricular Dysfunction, Left diagnostic imaging, Ventricular Dysfunction, Right diagnostic imaging
- Abstract
Takotsubo cardiomyopathy (TC) is characterized by transient wall motion abnormalities most commonly involving the left ventricle (LV). Although biventricular TC had been considered uncommon condition, recently biventricular TC has been reported as a new variant observed in 19-42% of all TC presentations. Since biventricular TC has a poor prognosis as compared with isolated TC, it is important to distinguish between isolated LV TC and biventricular TC. We present a case of 70-year-old female with dyspnea persisting for 2 days. Electrocardiogram showed symmetrical T-wave inversion in leads V2-V4. Transthoracic echocardiography (TTE) revealed diffuse hypo-kinesis except for the apical inferior LV and LV ejection fraction of 32%. Hyper-kinesis of the right ventricular (RV) basal segment and dys-kinesis of the RV apical segment. 2 weeks after admission, coronary angiography showed no evidence of significant stenosis. LV ejection fraction improved to 51% and wall motion abnormalities of the RV basal and apical segments were ameliorated to normo-kinesis. Electrocardiogram revealed symmetrical and deepened T-wave inversion in leads V2-V3. The presence of a transient abnormality in biventricular wall motion beyond a single coronary artery perfusion territory with new electrocardiographic change met the diagnostic criteria of definite TC defined by Mayo Clinic criteria. 4 weeks after admission, no recurrence of wall motion abnormalities in both ventricles were found and T-wave inversion ameliorated. To our knowledge, this is the first report of biventricular TC with asymmetrical abnormities of wall motion between LV and RV.
- Published
- 2019
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43. Multiple papillary fibroelastomas attached to left ventricular side and aortic side of the aortic valve: A report of new case and literature review.
- Author
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Tsugu T, Nagatomo Y, Endo J, Kawakami T, Murata M, Yamazaki M, Shimizu H, Fukuda K, Mitamura H, and Lancellotti P
- Subjects
- Aged, Aortic Valve surgery, Echocardiography, Transesophageal, Female, Fibroma surgery, Heart Neoplasms surgery, Heart Ventricles surgery, Humans, Neoplasms, Multiple Primary surgery, Aortic Valve diagnostic imaging, Echocardiography methods, Fibroma diagnostic imaging, Heart Neoplasms diagnostic imaging, Heart Ventricles diagnostic imaging, Neoplasms, Multiple Primary diagnostic imaging
- Abstract
The aortic valve (AV) is the most commonly affected site in multiple papillary fibroelastomas, but the frequency of embolism caused by the attachment side of the AV has not been elucidated. According to the review of the previous literature, 16 cases have been found attached to the AV. Of these, 6 of these have been found to be attached on the aortic side and 4 on the left ventricular side, 1 was bilateral, and 5 cases were unknown. Of the cases found on the aortic side, embolism occurred in 3 of them, and of the left ventricular side cases, embolism occurred in 2 of them. The frequency of embolism is equivalent even if papillary fibroelastoma attached to either side of the AV., (© 2019 Wiley Periodicals, Inc.)
- Published
- 2019
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44. Novel non-pharmacological therapy to modulate the autonomic tone in patients with heart failure with pulmonary hypertension.
- Author
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Martinez C, Sugimoto T, Tsugu T, Oury C, and Lancellotti P
- Abstract
Competing Interests: Conflicts of Interest: The authors have no conflicts of interest to declare.
- Published
- 2019
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45. Cancer therapeutics-related cardiac dysfunction in a patient treated with abiraterone for castration-resistant prostate cancer.
- Author
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Tsugu T, Nagatomo Y, Nakajima Y, Kageyama T, Akise Y, Endo J, Itabashi Y, Murata M, and Mitamura H
- Subjects
- Aged, 80 and over, Disease Progression, Drug Substitution, Humans, Male, Prostate-Specific Antigen metabolism, Treatment Outcome, Androstenes adverse effects, Antineoplastic Agents administration & dosage, Heart Failure chemically induced, Prostatic Neoplasms, Castration-Resistant drug therapy
- Abstract
Abiraterone is an agent effective for castration-resistant prostate cancer, but there have been no reports of cardiotoxic effects inducing cardiomyopathy, to our knowledge. We present a case of an 86-year-old man with castration-resistant prostate cancer treated with abiraterone. He had received an androgen receptor antagonist (bicalutamide) and a gonadotropin-releasing hormone antagonist (degarelix) for 3 years. These agents were changed to enzalutamide due to elevation of plasma prostate-specific antigen level of 129 ng/mL. One year later, the oral androgen receptor inhibitor (enzalutamide) caused drug-induced lung injury and was changed to abiraterone. Transthoracic echocardiography (TTE) revealed normal left ventricular systolic function, and left ventricular ejection fraction (LVEF) was 67%. Four weeks after administration of abiraterone, he complained of dyspnea on effort and bilateral leg edema, and he was diagnosed with heart failure. TTE showed hypokinesis of the diffuse LV, and LVEF decreased to 45%. The various causes of heart failure were excluded. Since a cardiotoxic effect of abiraterone was suspected, administration of abiraterone was discontinued. Two weeks after cessation of abiraterone, LVEF ameliorated to 57%, and then 5 months after cessation of abiraterone, LVEF further improved to 65%. To our knowledge, this is the first report of definite cancer therapeutics-related cardiac dysfunction due to a hormonal agent such as abiraterone diagnosed according to the American Society of Echocardiography and European Association of Cardiovascular Imaging criteria.
- Published
- 2019
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46. Increasing mixed venous oxygen saturation is a predictor of improved renal function after balloon pulmonary angioplasty in patients with chronic thromboembolic pulmonary hypertension.
- Author
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Isobe S, Itabashi Y, Kawakami T, Kataoka M, Kohsaka S, Tsugu T, Kimura M, Sawano M, Katsuki T, Kohno T, Endo J, Murata M, and Fukuda K
- Subjects
- Aged, Angiography, Cardiac Catheterization, Chronic Disease, Echocardiography, Female, Follow-Up Studies, Humans, Hypertension, Pulmonary etiology, Hypertension, Pulmonary physiopathology, Male, Middle Aged, Prognosis, Pulmonary Artery physiopathology, Pulmonary Embolism diagnosis, Pulmonary Embolism physiopathology, Retrospective Studies, Vascular Resistance, Ventricular Function, Right, Angioplasty, Balloon methods, Glomerular Filtration Rate physiology, Hypertension, Pulmonary surgery, Oxygen metabolism, Oxygen Consumption, Pulmonary Artery surgery, Pulmonary Embolism complications
- Abstract
Balloon pulmonary angioplasty (BPA) has emerged as an effective treatment for patients with inoperable chronic thromboembolic pulmonary hypertension (CTEPH). Renal function has been identified as a prognostic marker in patients with pulmonary hypertension in previous studies. We, therefore, aimed to investigate the clinical parameters associated with improvements in renal function in patients with CTEPH. A total of 45 consecutive patients with inoperable CTEPH undergoing BPA (mean age 62.2 ± 15.1 years) were included in the study. We evaluated the patients' clinical characteristics at baseline and at 1-year post-BPA, and investigated the association between renal function and hemodynamic parameters, including right heart function. Hemodynamics and renal function showed sustained improvements at 1 year after BPA in 64.4% of patients. Improved estimated glomerular filtration rate (eGFR) was significantly correlated with increased cardiac index (r = 0.433, p = 0.003) and mixed venous oxygen saturation (SvO
2 ; r = 0.459, p = 0.002), and with decreased mean pulmonary arterial pressure (r = - 0.420, p = 0.004) and pulmonary vascular resistance (r = -- 0.465, p = 0.001). Multivariate analysis revealed that an increase in SvO2 immediately after the final BPA was associated with improved eGFR after the 1st year (odds ratio 1.041; 95% confidence interval 1.004-1.078; P = 0.027). The cut-off value for predicting improved eGFR was an increase in SvO2 after the final BPA of >125.4% over the baseline value (specificity 100%, sensitivity 24.1%). In conclusion, BPA improved symptoms, right heart function, hemodynamics, and renal function up to the chronic phase. Increasing SvO2 by >125.4% above baseline in the acute phase is important for improving renal function at 1 year after BPA in CTEPH patients.- Published
- 2019
- Full Text
- View/download PDF
47. Long-term outcomes in 3 cases of quadricuspid aortic valve, using a new classification system: A case series and literature review.
- Author
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Tsugu T, Murata M, Endo J, Kawakami T, Tsuruta H, Itabashi Y, and Fukuda K
- Subjects
- Adult, Aged, Aged, 80 and over, Aortic Valve diagnostic imaging, Aortic Valve physiopathology, Aortic Valve surgery, Aortic Valve Insufficiency complications, Aortic Valve Insufficiency diagnostic imaging, Aortic Valve Insufficiency surgery, Bicuspid Aortic Valve Disease, Female, Heart Valve Diseases complications, Humans, Male, Middle Aged, Severity of Illness Index, Treatment Outcome, Aortic Valve abnormalities, Echocardiography, Heart Valve Diseases diagnostic imaging, Heart Valve Diseases surgery
- Abstract
Quadricuspid aortic valve has been classified based on leaflet size. However, no association is seen between classification and severity of aortic regurgitation (AR). Bicuspid aortic valve is classified according to the number of cusps, with significantly higher prevalence of AR in cases with a raphe. We classified cases according to raphe number. In 1 patient with no raphe, AR severity did not change into the eighth decade. However, AR severity worsened in patients with a raphe, in 1 case requiring aortic valve replacement in the fifth decade. Unequal shear stress may lead to leaflet fibrosis and progressive AR., (© 2019 Wiley Periodicals, Inc.)
- Published
- 2019
- Full Text
- View/download PDF
48. Shortening Hospital Stay Is Feasible and Safe in Patients With Chronic Thromboembolic Pulmonary Hypertension Treated With Balloon Pulmonary Angioplasty.
- Author
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Kimura M, Kohno T, Kawakami T, Kataoka M, Hiraide T, Moriyama H, Isobe S, Tsugu T, Itabashi Y, Murata M, Yuasa S, and Fukuda K
- Subjects
- Aged, Angiography, Chronic Disease, Electrocardiography, Endarterectomy methods, Feasibility Studies, Female, Follow-Up Studies, Humans, Hypertension, Pulmonary diagnosis, Hypertension, Pulmonary etiology, Male, Middle Aged, Pulmonary Embolism complications, Pulmonary Embolism diagnosis, Pulmonary Wedge Pressure, Retrospective Studies, Tomography, X-Ray Computed, Treatment Outcome, Angioplasty, Balloon methods, Hypertension, Pulmonary surgery, Length of Stay trends, Pulmonary Embolism surgery
- Abstract
Background: There is no consensus on the length of hospital stay (LOHS) and post-interventional management after balloon pulmonary angioplasty (BPA) in patients with chronic thromboembolic pulmonary hypertension (CTEPH). We examined temporal trends with respect to LOHS and requirement for intensive care for BPA and their relationship with the incidence of BPA-related complications., Methods: From November 2012 to September 2017, a total of 123 consecutive patients with CTEPH who underwent BPA were enrolled (age: 66.0 [54.0 to 74.0], World Health Organization [WHO] functional class II/III/IV; 27/88/8). Patients were divided for analysis into 3 groups according to the date of their first BPA: early-, middle-, and late-phase groups., Results: Mean pulmonary arterial pressure decreased from 36.0 (29.0 to 45.0) to 20.0 (16.0 to 22.0) mm Hg after BPA (P < 0.001). The LOHS was 41.0 (31.0 to 54.0) days in total including all sessions and 6.6 (6.0 to 7.9) days/session. Despite no significant differences in age, baseline hemodynamics, and laboratory data among the 3 groups, there was a significant reduction in LOHS (7.9 [7.0 to 9.5], 6.5 [6.1 to 7.3], 6.0 [5.3 to 6.5] days/session, P < 0.001) and use of intensive/high care unit (100%, 93%, 46%, P < 0.001). The reduction in LOHS and intensive/high care unit use did not affect the occurrence of BPA-related complications., Conclusions: Increasing experience with BPA was associated with a reduction in LOHS and the use of intensive/high care unit, but no change was noted in the rate of BPA-related complications. These findings suggest that the reduction in both LOHS and use of the intensive care unit for BPA is feasible and does not jeopardize the safety of the procedure., (Copyright © 2018 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
49. Delayed hemopericardium due to non-penetrating chest trauma: a report of new case and literature review.
- Author
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Tsugu T, Nagatomo Y, Tanigawa T, Endo J, Itabashi Y, Murata M, and Mitamura H
- Subjects
- Accidental Falls, Humans, Male, Middle Aged, Pericardial Effusion diagnostic imaging, Time Factors, Pericardial Effusion etiology, Thoracic Injuries complications, Wounds, Nonpenetrating complications
- Abstract
To our knowledge, only 15 cases of delayed traumatic hemopericardium resulting from non-penetrating chest trauma have been reported. We present the case of a 63-year-old man with delayed hemopericardium, 2 months after striking the anterior chest on a mailbox when he fell down three steps during a postal delivery. Our case and review of the previously reported cases suggest that some cases might show quite slow progression of blood accumulation. Therefore, careful observation of patients who have experienced blunt trauma of the anterior chest is necessary.
- Published
- 2019
- Full Text
- View/download PDF
50. The clinical value of assessing right ventricular diastolic function after balloon pulmonary angioplasty in patients with chronic thromboembolic pulmonary hypertension.
- Author
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Moriyama H, Murata M, Tsugu T, Kawakami T, Kataoka M, Hiraide T, Kimura M, Isobe S, Endo J, Kohno T, Itabashi Y, and Fukuda K
- Subjects
- Aged, Angioplasty, Balloon, Chronic Disease, Diastole, Echocardiography, Female, Hemodynamics, Humans, Hypertension, Pulmonary diagnostic imaging, Hypertension, Pulmonary etiology, Hypertension, Pulmonary therapy, Male, Middle Aged, Predictive Value of Tests, Pulmonary Embolism diagnostic imaging, Pulmonary Embolism etiology, Ventricular Dysfunction, Right diagnostic imaging, Ventricular Dysfunction, Right etiology, Ventricular Dysfunction, Right therapy, Hypertension, Pulmonary physiopathology, Pulmonary Embolism physiopathology, Ventricular Dysfunction, Right physiopathology, Ventricular Function, Right physiology
- Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) has a poor prognosis because of the associated progressive right heart failure. Accurate evaluation of right ventricular (RV) function would thus be useful to predict prognosis. However, the significance of RV diastolic function remains unclear. We aimed to identify which echocardiographic measures are most accurate, and potentially useful, in assessing RV diastolic function in patients with CTEPH, and to study the effects of balloon pulmonary angioplasty (BPA) on them. We enrolled 53 CTEPH patients who underwent BPA. Echocardiographic parameters, including two-dimensional speckle-tracking echocardiography, were compared to the hemodynamic parameters measured by right heart catheterization before and after BPA. RV strain rate during early diastole (SR_E), tricuspid e' and right atrial area (RAA) were ameliorated after BPA, concomitant with a decrease in the time constant of the RV pressure curve during diastole (tau), indicating the improvement of RV diastolic function. Among them, SR_E had the strongest correlation with tau (r = - 0.39, p < 0.001). Furthermore, the receiver operating characteristic analyses revealed that E/SR_E (AUC 0.704) and inferior vena cava diameter (AUC 0.726) had a stronger association with higher mean right atrial pressure than RAA (AUC 0.632). In contrast, RAA had a stronger correlation with 6 min-walk distances than SR_E (r = - 0.39, p < 0.001 vs. r = 0.30, p = 0.005). Taken together, echocardiographic assessment of RV diastolic function might be associated with hemodynamics as well as exercise tolerance in patients with CTEPH, indicating its benefits in evaluating the therapeutic effects of BPA.
- Published
- 2018
- Full Text
- View/download PDF
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