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6. P866Noninvasive and comprehensive evaluation of the impact of left ventricular pressure overload on both systolic and diastolic function using speckle tracking echocardiography

Author

Yoshizane, T, primary, Tanaka, R, additional, Minatoguchi, S, additional, Kawamura, I, additional, Sato, H, additional, Otsuka, M, additional, Nagaya, M, additional, Ueno, T, additional, Watanabe, R, additional, Warita, S, additional, Noda, T, additional, Nagata, K, additional, Takatsu, H, additional, and Kawasaki, M, additional

Published
2018
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7. P1771Left ventricular strain rate during early diastole and atrial contraction by real-time three-dimensional speckle tracking echocardiography with high volume rate is a novel index of diastolic function

Author

Yoshizane, T, primary, Tanaka, R, additional, Minatoguchi, S, additional, Watanabe, T, additional, Otsuka, M, additional, Nagaya, M, additional, Yagasaki, H, additional, Ono, K, additional, Ueno, T, additional, Watanabe, R, additional, Warita, S, additional, Noda, T, additional, and Kawasaki, M, additional

Published
2018
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8. P6166Noninvesive evaluation of impact of left ventricular pressure overload on diastolic function in patients with preserved ejection fraction using speckle tracking echocardiography: multicenter study

Author

Yoshizane, T., primary, Kawasaki, M., additional, Tanaka, R., additional, Horio, S., additional, Ishiguro, M., additional, Minatoguchi, S., additional, Warita, S., additional, Kawamura, I., additional, Ono, K., additional, Tanihata, S., additional, Arai, M., additional, Noda, T., additional, and Watanabe, S., additional

Published
2017
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9. P3337Left ventricular torsion is more useful index of systolic performance than twist: one-beat real time three-dimensional speckle tracking echocardiography study

Author

Yoshizane, T., primary, Kawasaki, M., additional, Tanaka, R., additional, Horio, S., additional, Ishiguro, M., additional, Minatoguchi, S., additional, Warita, S., additional, Ono, K., additional, Sato, H., additional, Tanihata, S., additional, Arai, M., additional, Noda, T., additional, and Watanabe, S., additional

Published
2017
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10. P4369Left ventricular layer strain and torsion in hypertensive heart failure with preserved and reduced ejection fraction: 3-dimensional speckle tracking echocardiography studv

Author

Yoshizane, T., primary, Kawasaki, M., additional, Tanaka, R., additional, Horio, S., additional, Ishiguro, M., additional, Minatoguchi, S., additional, Warita, S., additional, Ono, K., additional, Deguchi, T., additional, Tanihata, S., additional, Arai, M., additional, Noda, T., additional, and Watanabe, S., additional

Published
2017
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11. P5231Left ventricular strain rate during diastole assessed by real-time one-beat three-dimensional speckle tracking echocardiography with high volume rates: comparison with doppler echocardiography

Author

Yoshizane, T., primary, Kawasaki, M., additional, Tanaka, R., additional, Horio, S., additional, Ishiguro, M., additional, Minatoguchi, S., additional, Warita, S., additional, Ono, K., additional, Nagaya, M., additional, Tanihata, S., additional, Arai, M., additional, Noda, T., additional, and Watanabe, S., additional

Published
2017
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16. Comparison of subjective symptoms of temporomandibular disorders in young patients by age and gender.

Author

Karibe H, Goddard G, Aoyagi K, Kawakami T, Warita S, Shimazu K, Rudd PA, and McNeill C

Abstract

The authors assessed the subjective symptoms of temporomandibular disorders (TMDs) in 167 young patients using self-reported forms, with five ratings for pain intensity and six ratings for difficulty in activities of daily living (ADL), to compare TMD symptoms according to gender and three age groups: group 1: 6- to 12-year-olds (juvenile); group 2: 13- to 15-year-olds (early adolescent); group 3: 16- to 18-year-olds (late adolescent). No significant gender differences were found in the symptoms among the groups, except for headache and neck pain in group 3. Pain intensity and tightness in the jaw/face, headache, and neck pain, as well as the ADL-related difficulty in prolonged jaw opening, eating soft/hard foods, and sleeping significantly differed among the groups (p < 0.01, Kruskal-Wallis test). Therefore, late adolescent patients with TMDs have higher pain intensity in the orofacial region and greater difficulty in ADL than do early adolescent and juvenile patients with TMDs. [ABSTRACT FROM AUTHOR]

Published
2012

17. Occupational scleroderma. A 17 -- year follow -- up study.

Author

Ishikawa, O., Warita, S., Tamura, A., and Miyachi, Y.

Subjects
SCLERODERMA (Disease), COLLAGEN diseases, SKIN diseases, CLINICAL pathology, PROGNOSIS, MEDICAL research, DERMATOLOGY
Abstract

Two patients with a scleroderma-like disorder induced by epoxy resins were reported from the Department of Dermatology, Gunma University School of Medicine, Japan in 1980. Here, we describe the clinical and laboratory characteristics of these patients after 17 years' follow-up from 1976 to 1995. Their systemic manifestations and indurated sclerotic skin changes disappeared within 5 years. No internal organ involvement has developed during the period of follow-up. On routine laboratory tests, no abnormalities have been found in the peripheral blood or in the blood chemistry or serology. Histological examination revealed atrophy of the dermis and restoration of the normal pattern of tine collagen bundles, when compared with the previous skin biopsy specimens. This scleroderma-like disorder induced by epoxy resins is considered to be different from systemic sclerosis: it has an acute onset and a fairly good prognosis, and does not show involvement of the internal organs. [ABSTRACT FROM AUTHOR]

Published
1995

18. Poster session 3: Thursday 4 December 2014, 14:00-18:00 * Location: Poster area

Author

Shahgaldi, K, Hegner, T, Da Silva, C, Fukuyama, A, Takeuchi, M, Uema, A, Kado, Y, Nagata, Y, Hayashi, A, Otani, K, Fukuda, S, Yoshitani, H, Otsuji, Y, Morhy, S, Lianza, AC, Afonso, TR, Oliveira, WA, Tavares, GP, Rodrigues, AC, Vieira, MC, Warth, AN, Deutsch, AD, Fischer, CH, Tezynska-Oniszk, I, Turska-Kmiec, A, Kawalec, W, Dangel, J, Maruszewski, B, Bokiniec, R, Burczynski, P, Borszewska-Kornacka, K, Ziolkowska, L, Zuk, M, Mazowsza, eSUM Dzieciaki, Troshina, A, Dzhalilova, DA, Poteshkina, NG, Hamitov, FF, Warita, S, Kawasaki, M, Tanaka, R, Yagasaki, H, Minatoguchi, S, Wanatabe, T, Ono, K, Noda, T, Wanatabe, S, Minatoguchi, S, Angelis, A, Ageli, K, Vlachopoulos, C, Felekos, I, Ioakimidis, N, Aznaouridis, K, Vaina, S, Abdelrasoul, M, Tsiamis, E, Stefanadis, C, Cameli, M, Sparla, S, D'ascenzi, F, Fineschi, M, Favilli, R, Pierli, C, Henein, M, Mondillo, S, Lindqvist, P, Tossavainen, E, Gonzalez, M, Soderberg, S, Henein, M, Holmgren, A, Strachinaru, M, Catez, E, Jousten, I, Pavel, O, Janssen, C, Morissens, M, Chatzistamatiou, E, Moustakas, G, Memo, G, Konstantinidis, D, Mpampatzeva Vagena, I, Manakos, K, Traxanas, K, Vergi, N, Feretou, A, Kallikazaros, I, Tsai, W-C, Sun, Y-T, Lee, W-H, Yang, L-T, Liu, Y-W, Lee, C-H, Li, W-T, Mizariene, V, Bieseviciene, M, Karaliute, R, Verseckaite, R, Vaskelyte, J, Lesauskaite, V, Chatzistamatiou, E, Mpampatseva Vagena, I, Manakos, K, Moustakas, G, Konstantinidis, D, Memo, G, Mitsakis, O, Kasakogias, A, Syros, P, Kallikazaros, I, Hristova, K, Cornelissen, G, Singh, RB, Shiue, I, Coisne, D, Madjalian, A-M, Tchepkou, C, Raud Raynier, P, Degand, B, Christiaens, L, Baldenhofer, G, Spethmann, S, Dreger, H, Sanad, W, Baumann, G, Stangl, K, Stangl, V, Knebel, F, Azzaz, S, Kacem, S, Ouali, S, Risos, L, Dedobbeleer, C, Unger, P, Sinem Cakal, SC, Elif Eroglu, EE, Baydar, O, Beytullah Cakal, BC, Mehmet Vefik Yazicioglu, MVY, Mustafa Bulut, MB, Cihan Dundar, CD, Kursat Tigen, KT, Birol Ozkan, BO, Ali Metin Esen, AME, Tournoux, F, Chequer, R, Sroussi, M, Hyafil, F, Rouzet, F, Leguludec, D, Baum, P, Stoebe, S, Pfeiffer, D, Hagendorff, A, Fang, F, Lau, M, Zhang, Q, Luo, XX, Wang, XY, Chen, L, Yu, CM, -CRT, Predict, Zaborska, B, Smarz, K, Makowska, E, Kulakowski, P, Budaj, A, Bengrid, T M, Zhao, Y, Henein, M Y, Caminiti, G, D'antoni, V, Cardaci, V, Conti, V, Volterrani, M, Warita, S, Kawasaki, M, Yagasaki, H, Minatoguchi, S, Nagaya, M, Ono, K, Noda, T, Watanabe, S, Houle, H, Minatoguchi, S, Gillebert, T C, Chirinos, J A, Claessens, T C, Raja, M W, De Buyzere, M L, Segers, P, Rietzschel, E R, Investigators, The Asklepios, Kim, KH, Cha, JJ, Chung, HM, Kim, JY, Yoon, YW, Lee, BK, Hong, BK, Rim, SJ, Kwon, HM, Choi, EY, Pyankov, V, Aljaroudi, W, Matta, S, Al-Shaar, L, Habib, R, Gharzuddin, W, Arnaout, S, Skouri, H, Jaber, W, Abchee, A, Bouzas Mosquera, A, Peteiro, J, Broullon, FJ, Constanso Conde, IP, Bescos Galego, H, Martinez Ruiz, D, Yanez Wonenburger, JC, Vazquez Rodriguez, JM, Alvarez Garcia, N, Castro Beiras, A, Gunyeli, E, Oliveira Da Silva, C, Shahgaldi, K, Manouras, A, Winter, R, Meimoun, P, Abouth, S, Martis, S, Boulanger, J, Elmkies, F, Zemir, H, Detienne, JP, Luycx-Bore, A, Clerc, J, Rodriguez Palomares, J F, Gutierrez, LG, Maldonado, GM, Garcia, GG, Galuppo, VG, Gruosso, DG, Teixido, GT, Gonzalez Alujas, MTGA, Evangelista, AE, Garcia Dorado, DGD, Rechcinski, T, Wierzbowska-Drabik, K, Wejner-Mik, P, Szymanska, B, Jerczynska, H, Lipiec, P, Kasprzak, JD, El-Touny, K, El-Fawal, S, Loutfi, M, El-Sharkawy, E, Ashour, S, Boniotti, C, Carminati, MC, Fusini, L, Andreini, D, Pontone, G, Pepi, M, Caiani, EG, Oryshchyn, N, Kramer, B, Hermann, S, Liu, D, Hu, K, Ertl, G, Weidemann, F, Ancona, F, Miyazaki, S, Slavich, M, Figini, F, Latib, A, Chieffo, A, Montorfano, M, Alfieri, O, Colombo, A, Agricola, E, Nogueira, MA, Branco, LM, Rosa, SA, Portugal, G, Galrinho, A, Abreu, J, Cacela, D, Patricio, L, Fragata, J, Cruz Ferreira, R, Igual Munoz, B, Erdociain Perales, MEP, Maceira Gonzalez, AMG, Estornell Erill Jordi, JEE, Donate Bertolin, LDB, Vazquez Sanchez Alejandro, AVS, Miro Palau Vicente, VMP, Cervera Zamora, ACZ, Piquer Gil, MPG, Montero Argudo, AMA, Girgis, H Y A, Illatopa, V, Cordova, F, Espinoza, D, Ortega, J, Khan, US, Islam, AKMM, Majumder, AAS, Girgis, H Y A, Bayat, F, Naghshbandi, E, Naghshbandi, E, Samiei, N, Samiei, N, Malev, E, Omelchenko, M, Vasina, L, Zemtsovsky, E, Piatkowski, R, Kochanowski, J, Budnik, M, Scislo, P, Opolski, G, Kochanowski, J, Piatkowski, R, Scislo, P, Budnik, M, Marchel, M, Opolski, G, Abid, L, Ben Kahla, S, Abid, D, Charfeddine, S, Maaloul, I, Ben Jmaa, M, Kammoun, S, Hashimoto, G, Suzuki, M, Yoshikawa, H, Otsuka, T, Isekame, Y, Yamashita, H, Kawase, I, Ozaki, S, Nakamura, M, Sugi, K, Benvenuto, E, Leggio, S, Buccheri, S, Bonura, S, Deste, W, Tamburino, C, Monte, I P, Gripari, P, Fusini, L, Muratori, M, Tamborini, G, Ghulam Ali, S, Bottari, V, Cefalu', C, Bartorelli, A, Agrifoglio, M, Pepi, M, Zambon, E, Iorio, A, Di Nora, C, Abate, E, Lo Giudice, F, Di Lenarda, A, Agostoni, P, Sinagra, G, Timoteo, A T, Galrinho, A, Moura Branco, L, Rio, P, Aguiar Rosa, S, Oliveira, M, Silva Cunha, P, Leal, A, Cruz Ferreira, R, Zemanek, D, Tomasov, P, Belehrad, M, Kostalova, J, Kara, T, Veselka, J, Hassanein, M, El Tahan, S, El Sharkawy, E, Shehata, H, Yoon, YE, Choi, HM, Seo, HY, Lee, SP, Kim, HK, Youn, TJ, Kim, YJ, Sohn, DW, Choi, GY, Mielczarek, M, Huttin, O, Voilliot, D, Sellal, JM, Manenti, V, Carillo, S, Olivier, A, Venner, C, Juilliere, Y, Selton-Suty, C, Butz, T, Faber, L, Brand, M, Piper, C, Wiemer, M, Noelke, J, Sasko, B, Langer, C, Horstkotte, D, Trappe, HJ, Maysou, LA, Tessonnier, L, Jacquier, A, Serratrice, J, Copel, C, Stoppa, AM, Seguier, J, Saby, L, Verschueren, A, Habib, G, Petroni, R, Bencivenga, S, Di Mauro, M, Acitelli, A, Cicconetti, M, Romano, S, Petroni, A, Penco, M, Maceira Gonzalez, A M, Cosin-Sales, J, Igual, B, Sancho-Tello, R, Ruvira, J, Mayans, J, Choi, JH, Kim, SWK, Almeida, A, Azevedo, O, Amado, J, Picarra, B, Lima, R, Cruz, I, Pereira, V, Marques, N, Biering-Sorensen, T, Mogelvang, R, Schnohr, P, Jensen, JS, Chatzistamatiou, E, Konstantinidis, D, Manakos, K, Mpampatseva Vagena, I, Moustakas, G, Memo, G, Mitsakis, O, Kasakogias, A, Syros, P, Kallikazaros, I, Cho, EJ, Kim, JJ, Hwang, BH, Kim, DB, Jang, SW, Jeon, HK, Cho, JS, Chatzistamatiou, E, Konstantinidis, D, Memo, G, Mpapatzeva Vagena, I, Moustakas, G, Manakos, K, Traxanas, K, Vergi, N, Feretou, A, Kallikazaros, I, Jedrzejewska, I, Konopka, M, Krol, W, Swiatowiec, A, Dluzniewski, M, Braksator, W, Sefri Noventi, S, Sugiri, S, Uddin, I, Herminingsih, S, Arif Nugroho, M, Boedijitno, S, Caro Codon, J, Blazquez Bermejo, Z, Valbuena Lopez, S C, Lopez Fernandez, T, Rodriguez Fraga, O, Torrente Regidor, M, Pena Conde, L, Moreno Yanguela, M, Buno Soto, A, Lopez-Sendon, J L, Stevanovic, A, Dekleva, M, Kim, MN, Kim, SA, Kim, YH, Shim, JM, Park, SM, Park, SW, Kim, YH, Shim, WJ, Kozakova, M, Muscelli, E, Morizzo, C, Casolaro, A, Paterni, M, Palombo, C, Bayat, F, Nazmdeh, M, Naghshbandi, E, Nateghi, S, Tomaszewski, A, Kutarski, A, Brzozowski, W, Tomaszewski, M, Nakano, E, Harada, T, Takagi, Y, Yamada, M, Takano, M, Furukawa, T, Akashi, Y, Lindqvist, G, Henein, MY, Backman, C, Gustafsson, S, Morner, S, Marinov, R, Hristova, K, Geirgiev, S, Pechilkov, D, Kaneva, A, Katova, TZ, Pilosoff, V, Pena Pena, ML, Mesa Rubio, D, Ruiz Ortin, M, Delgado Ortega, M, Romo Penas, E, Pardo Gonzalez, L, Rodriguez Diego, S, Hidalgo Lesmes, F, Pan Alvarez-Ossorio, M, Suarez De Lezo Cruz-Conde, J, Gospodinova, M, Sarafov, S, Guergelcheva, V, Vladimirova, L, Tournev, I, Denchev, S, Mozenska, O, Segiet, A, Rabczenko, D, Kosior, DA, Gao, SA, Eliasson, M, Polte, CL, Lagerstrand, K, Bech-Hanssen, O, Morosin, M, Piazza, R, Leonelli, V, Leiballi, E, Pecoraro, R, Cinello, M, Dell' Angela, L, Cassin, M, Sinagra, G, Nicolosi, GL, Savu, O, Carstea, N, Stoica, E, Macarie, C, Moldovan, H, Iliescu, V, Chioncel, O, Moral, S, Gruosso, D, Galuppo, V, Teixido, G, Rodriguez-Palomares, JF, Gutierrez, L, Evangelista, A, Jansen Klomp, W W, Peelen, LM, Spanjersberg, AJ, Brandon Bravo Bruinsma, GJ, Van 'T Hof, AWJ, Laveau, F, Hammoudi, N, Helft, G, Barthelemy, O, Michel, PL, Petroni, T, Djebbar, M, Boubrit, L, Le Feuvre, C, Isnard, R, Cho, EJ, Park, S-J, Kim, CH, Song, JE, Kim, SH, Chang, S-A, Lee, S-C, Park, SW, Bandera, F, Generati, G, Pellegrino, M, Alfonzetti, E, Labate, V, Villani, S, Gaeta, M, Guazzi, M, Gabriels, C, Lancellotti, P, Van De Bruaene, A, Voilliot, D, De Meester, P, Buys, R, Delcroix, M, Budts, W, Cruz, I, Stuart, B, Caldeira, D, Morgado, G, Almeida, AR, Lopes, LR, Fazendas, P, Joao, I, Cotrim, C, Pereira, H, Weissler Snir, A, Greenberg, G, Shapira, Y, Weisenberg, D, Monakier, D, Nevzorov, R, Sagie, A, Vaturi, M, Bando, M, Yamada, H, Saijo, Y, Takagawa, Y, Sawada, N, Hotchi, J, Hayashi, S, Hirata, Y, Nishio, S, Sata, M, Jackson, TA, Sammut, E, Siarkos, M, Lee, L, Carr-White, G, Rajani, R, Kapetanakis, S, Ciobotaru, V, Yagasaki, H, Kawasaki, M, Tanaka, R, Minatoguchi, S, Sato, N, Amano, K, Warita, S, Ono, K, Noda, T, Minatoguchi, S, Breithardt, O-A, Razavi, H, Nabutovsky, Y, Ryu, K, Gaspar, T, Kosiuk, J, John, S, Prinzen, F, Hindricks, G, Piorkowski, C, Nemchyna, O, Tovstukha, V, Chikovani, A, Golikova, I, Lutai, M, Nemes, A, Kalapos, A, Domsik, P, Lengyel, C, Orosz, A, Forster, T, Nordenfur, T, Babic, A, Giesecke, A, Bulatovic, I, Ripsweden, J, Samset, E, Winter, R, Larsson, M, Blazquez Bermejo, Z, Lopez Fernandez, T, Caro Codon, J, Valbuena, SC, Caro Codon, J, Mori Junco, R, Moreno Yanguela, M, Lopez-Sendon, JL, MEdicamentos, Grupo de Estudio de CArdiotoxicidad por, Pinto-Teixeira, P, Branco, L, Galrinho, A, Oliveira, M, Cunha, P, Silva, T, Rio, P, Feliciano, J, Nogueira-Silva, M, Ferreira, R, Shkolnik, E, Vasyuk, Y, Nesvetov, V, Shkolnik, L, Varlan, G, Bajraktari, G, Ronn, F, Ibrahimi, P, Jashari, F, Jensen, SM, Henein, MY, Kang, M-K, Mun, H-S, Choi, S, Cho, J-R, Han, SW, Lee, N, Cho, I J, Heo, R, Chang, HJ, Shin, S, Shim, CY, Hong, GR, and Chung, N

Abstract

Objective:  We aimed to investigate the reproducibility of vena contracta (VC) in mitral regurgitation (MR) of different etiology between an inexperienced and an experienced echocardiographer. Background: MR is the second most common valvular heart disease in Europe that requires surgery.  Echocardiography is the principal modality of investigation when MR is suspected. In European and American guidelines VC is described as one of the most feasible echocardiographic measurements in the assessment of MR. There is a lack of publications regarding intra-observer variability and studies comparing inexperienced and experienced echocardiographers for the assessment of VC. Method/Material: VC of 55 recorded 2D echocardiograms with known MR of different degree and etiology were analyzed from parasternal long axis view, 4- and 3 chamber view. The mean value of the different plane measurements of each exam was used for statistical analysis. Analyses were made by an inexperienced (A) fellow echocardiographer (<100 studies) and a level 3 experienced (B) echocardiographer. Measurements of VC by the 2 echocardiographers were performed blinded to clinical data. Measurements were performed with at least 2 weeks apart, blinded to the first measurement. Results: Three exams were excluded (feasibility 95%) from statistical analysis because adequate color Doppler images from all tree planes was not available. The inter class correlation (ICC) between the first and second analysis was (r=0.75; 95% CI -1.1 to 1.7mm) for A and (r=0.94; 95% CI -0.76 to 0.84mm) for B. There was good ICC between the 2 echocardiographers (r=0.78; 95% CI -1.5 to 1.3mm). The intra observer variability was 11.1% for A and 6.1% for B. The inter observer variability was 11.7% (p>0.05 for all). Conclusion: Measurement of vena contracta in mitral regurgitation is a feasible semi-quantitative parameter. Good correlation and narrow limits of agreement between a novice and an experienced echocardiographer was demonstrated in our study.

Published
2014
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19. Motion of left atrial appendage as a determinant of thrombus formation in patients with a low CHADS2 score receiving warfarin for persistent nonvalvular atrial fibrillation

Author

Ono Koji, Iwama Makoto, Kawasaki Masanori, Tanaka Ryuhei, Watanabe Takatomo, Onishi Noriyuki, Warita Shunichiro, Kojima Tai, Kato Takashi, Goto Yoshiaki, Arai Masazumi, Nishigaki Kazuhiko, Takemura Genzou, Noda Toshiyuki, Watanabe Sachiro, and Minatoguchi Shinya

Subjects
Atrial fibrillation, Left atrial appendage, Thrombus, Transesophageal echocardiography, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract

Abstract Background The aim of this study was to define the independent determinants of left atrial appendage (LAA) thrombus among various echocardiographic parameters measured by Velocity Vector Imaging (VVI) in patients with nonvalvular atrial fibrillation (AF) receiving warfarin, particularly in patients with a low CHADS2 score. Methods LAA emptying fraction (EF) and LAA peak longitudinal strain were measured by VVI using transesophageal echocardiography in 260 consecutive patients with nonvalvular persistent AF receiving warfarin. The patients were divided into two groups according to the presence (n=43) or absence (n=217) of LAA thrombus. Moreover, the patients within each group were further divided into subgroups according to a CHADS2 score ≤1. Results Multivariate logistic regression analysis showed that LAAEF was an independent determinant of LAA thrombus in the subgroup of 140 with a low CHADS2 score. Receiver operating characteristics curve analysis showed that an LAAEF of 21% was the optimal cutoff value for predicting LAA thrombus. Conclusions LAA thrombus formation depended on LAA contractility. AF patients with reduced LAA contractile fraction (LAAEF ≤21%) require strong anticoagulant therapy to avoid thromboembolic events regardless of a low CHADS2 score (≤1).

Published
2012
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20. Poster session 6: Saturday 6 December 2014, 08:30-12:30 * Location: Poster area

Author

Goirigolzarri Artaza, J, Gallego Delgado, M, Jaimes Castellanos, CP, Cavero Gibanel, MA, Pastrana Ledesma, MA, Alonso Pulpon, LA, Gonzalez Mirelis, J, Al Ansi, R Z, Sokolovic, S, Cerin, G, Szychta, W, Popa, B A, Botezatu, D, Benea, D, Manganiello, S, Corlan, A, Jabour, A, Igual Munoz, B, Osaca Asensi, JOA, Andres La Huerta, AALH, Maceira Gonzalez, AMG, Estornell Erill, JEE, Cano Perez, OCP, Sancho-Tello, MJSTDC, Alonso Fernandez, PAF, Sepulveda Sanchez, PSS, Montero Argudo, AMA, Palombo, C, Morizzo, C, Baluci, M, Kozakova, M, Panajotu, A, Karady, J, Szeplaki, G, Horvath, T, Tarnoki, DL, Jermendy, AL, Geller, L, Merkely, B, Maurovich-Horvat, P, Group, MTA-SE "Lendület" Cardiovascular Imaging Research, Moustafa, S, Mookadam, F, Youssef, M, Zuhairy, H, Connelly, M, Prieur, T, Alvarez, N, Ashikhmin, Y, Drapkina, O, Boutsikou, M, Demerouti, E, Leontiadis, E, Petrou, E, Karatasakis, G, Kozakova, M, Morizzo, C, Bianchi, V, Marchi, B, Federico, G, Palombo, C, Chatzistamatiou, E, Moustakas, G, Memo, G, Konstantinidis, D, Mpampatzeva Vagena, I, Manakos, K, Traxanas, K, Vergi, N, Feretou, A, Kallikazaros, I, Goto, M, Uejima, T, Itatani, K, Pedrizzetti, G, Mada, RO, Daraban, AM, Duchenne, J, Voigt, JU, Chiu, D Y Y, Green, D, Johnstone, L, Sinha, S, Kalra, PA, Abidin, N, Group, Salford Vascular Research, Sikora-Frac, M, Zaborska, B, Maciejewski, P, Bednarz, B, Budaj, A, Nemes, A, Sasi, V, Gavaller, H, Kalapos, A, Domsik, P, Katona, A, Szucsborus, T, Ungi, T, Forster, T, Ungi, I, Pluchinotta, FR, Arcidiacono, C, Saracino, A, Carminati, M, Bussadori, C, Dahlslett, T, Karlsen, S, Grenne, B, Sjoli, B, Bendz, B, Skulstad, H, Smiseth, OA, Edvardsen, T, Brunvand, H, Vereckei, A, Szelenyi, ZS, Szenasi, G, Santoro, C, Galderisi, M, Niglio, T, Santoro, M, Stabile, E, Rapacciuolo, A, Spinelli, L, De Simone, G, Esposito, G, Trimarco, B, Hubert, S, Jacquier, A, Fromonot, J, Resseguier, C, Tessier, A, Guieu, R, Renard, S, Haentjiens, J, Lavoute, C, Habib, G, Menting, M E, Koopman, LP, Mcghie, 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Figueiredo, L, and Cruz Ferreira, R

Abstract

Introduction: The increase of left auricular volume (LAV) is a robust cardiovascular event predictor. Despite that echochardiography is more often used, cardiac MRI is considered more accurate. Our objetives are to validate "fast" LAV measures by MRI vs the considered gold standard (GS) and to compare Echo and MRI in a wide spectrum of patients. Methods: In a non-selected popullation with MRI study previously realized, we measured LAV by biplane method (BPMR) and by area-length in 4 chamber view (ALMR) and compared them with biplane (BPe) and discs method (MDDe) in 4 chamber view in echo. To validate MRI measurements, we measured LAV in short axis slices (Simpson Method, SM) in a group of patients and considered it the GS. Results: 186 patients were included (mean age 51 ± 17 age; 123 male; 14 in AF) with clinical indication of cardiac MRI (Philips 1,5 T). In 24 patients SM was calculated. 29% of cardiac MRI were considered normal. Mean underlying pathologies were myocardiopathy (27%), Ischemic myocardiopathy (17%), myopericarditis (10%), prior to AF ablation (4%), valvular disease (6%) and miscellaneous (7%). Excellent correlation was obtained between "fast" MRI measurements and SM in MRI (SM vs BPMR interclass correlation coefficient ICC=0.965 and SM vs ALMR, ICC=0.958; P<0.05) with low interobserver variability (ICC=0.983 for SM; ICC=0.949 for BPMR; ICC=0.931 for ALMR). "Fast" measurements by MRI showed stadistical correlation between them (CCI=0.910) (Figure). Correlation between Echo and MRI measures was only moderate. (BPRM vs BPe CCI=0,469 mean difference -30 ml; ALMR vs MDDe ICC=0,456 mean difference -24 mL). Conclusions: ‘fast’ LAV measures by MRI are comparable with the MRI GS and also between them. Echo values seem to underestimate compared to MRI, so its use may not be suitable.

Published
2014
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21. Poster session 5: Friday 5 December 2014, 14:00-18:00 * Location: Poster area

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Turco, A, Duchenne, J, Nuyts, J, Gheysens, O, Voigt, J-U, Claus, P, Vunckx, K, Muhtarov, K, Ozer, N, Turk, G, Sunman, H, Karakulak, U, Sahiner, L, Kaya, B, Yorgun, H, Hazirolan, T, Aytemir, K, Warita, S, Kawasaki, M, Tanaka, R, Houle, H, Yagasaki, H, Nagaya, M, Ono, K, Noda, T, Watanabe, S, Minatoguchi, S, Kyle, AS, Dauphin, C, Lusson, J R, Dragoi Galrinho, R, Rimbas, RC, Ciobanu, AO, Marinescu, B, Cinteza, M, Vinereanu, D, 28343/04.11.2013, number, Medicine, Funding Authority: University of, Davila, Pharmacy Carol, "Young Researchers" Projects – 2013, Buchar, Dragoi Galrinho, R, Ciobanu, AO, Rimbas, RC, Marinescu, B, Cinteza, M, Vinereanu, D, 159/1.5/S/138907, Grant POSDRU, Aparina, O, Stukalova, O, Butorova, E, Makeev, M, Bolotova, M, Parkhomenko, D, Golitsyn, SP, Zengin, E, Hoffmann, B A, Ramuschkat, M, Ojeda, F, Weiss, C, Willems, S, Blankenberg, S, Schnabel, R B, Sinning, C R, Schubert, U, Suhai, F I, Toth, A, Kecskes, K, Czimbalmos, CS, Csecs, I, Maurovich-Horvat, P, Simor, T, 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Isekame, Y, Iijima, R, Hara, H, Nakamura, M, Sugi, K, Melnikova, MA, Krestjyaninov, MV, Ruzov, VI, Magnino, C, Omede', P, Avenatti, E, Presutti, D, Moretti, C, Ravera, A, Sabia, L, Gaita, F, Veglio, F, Milan, A, Magda, SL, Mincu, RI, Soare, A, Mihai, CM, Florescu, M, Mihalcea, D, Cinteza, M, Vinereanu, D, POSDRU/159/1.5/S/141531, Grant, 112/2011, grant CNCSIS, Chatzistamatiou, E, Mpampatseva Vagena, I, Manakos, K, Moustakas, G, Konstantinidis, D, Memo, G, Mitsakis, O, Kasakogias, A, Syros, P, Kallikazaros, I, Petroni, R, Acitelli, A, Cicconetti, M, Di Mauro, M, Altorio, SF, Romano, S, Petroni, A, Penco, M, Apostolovic, S, Stanojevic, D, Jankovic-Tomasevic, R, Salinger-Martinovic, S, Pavlovic, M, Djordjevic-Radojkovic, D, Tahirovic, E, Dungen, HD, ELD, CIBIS, Jung, I H, Byun, Y S, Goh, C W, Kim, B O, Rhee, K J, Lee, D S, Kim, M J, Seo, H S, Kim, H Y, Tsverava, M, Tsverava, D, Zaletova, T, Shamsheva, D, Parkhomenko, O, Bogdanov, A, Derbeneva, S, Leotescu, A, Tudor, I, Gurghean, A, Bruckner, I, Plaskota, KJ, Trojnarska, O, Bartczak, A, Grajek, S, Sharma, P, Sharma, D, Garg, S, Vazquez Lopez-Ibor, J, Monivas Palomero, V, Solano-Lopez, JM, Zegri Reiriz, I, Dominguez Rodriguez, F, Gonzalez Mirelis, J, Mingo Santos, S, Sayago, I, Garcia Pavia, P, Segovia Cubero, J, Konecny, T, Noseworthy, P, Kapa, S, Cooper, LT, Mulpuru, SK, Asirvatham, S, Florescu, M, Mihalcea, D, Magda, S, Radu, E, Chirca, A, Acasandrei, AM, Jinga, D, Mincu, R, Enescu, OA, Vinereanu, D, 112/2011, no., PN-II-ID-PCE-2011-3-0791, Saura Espin, D, Caballero Jimenez, L, Oliva Sandoval, MJ, Gonzalez Carrillo, J, Garcia Navarro, M, Espinosa Garcia, MD, Valdes Chavarri, M, De La Morena Valenzuela, G, Abul Fadl, AAM, Mourad, MM, team, Primary care Echocardiography, Campanale, C M, Di Maria, S, Mega, S, Nusca, A, Marullo, F, Di Sciascio, G, Pardo Gonzalez, L, Delgado, M, Ruiz, M, Rodriguez, S, Hidalgo, F, Ortega, R, Mesa, D, Suarez De Lezo Cruz Conde, J, Bengrid, T M, Zhao, Y, Henein, MY, Kenjaev, S, Alavi, AL, Kenjaev, ML, Mendes, LM, Lima, S, Dantas, C, Melo, I, Madeira, V, Balao, S, Alves, H, Baptista, E, Mendes, P, Santos, JF, Scali, MC, Mandoli, GE, Simioniuc, A, Massaro, F, Di Bello, V, Marzilli, M, Dini, FL, Cifra, B, Dragulescu, A, Friedberg, MK, Mertens, L, Scali, MC, Bayramoglu, A, Tasolar, H, Otlu, YO, Hidayet, S, Kurt, F, Dogan, A, Pekdemir, H, Stefani, L, Galanti, GG, De Luca, ADL, Toncelli, LT, Pedrizzetti, GP, Gopal, A S, Saha, SK, Toole, RS, Kiotsekoglou, A, Cao, JJ, Reichek, N, Ho, S-J, Hung, S-C, Chang, F-Y, Liao, J-N, Niu, D-M, Yu, W-C, Nemes, A, Kalapos, A, Domsik, P, Forster, T, Siarkos, M, Sammut, E, Lee, L, Jackson, T, Carr-White, G, Rajani, R, Kapetanakis, S, Jarvinen, VM, Sipola, P, Madeo, A, Piras, P, Evangelista, A, Giura, G, Dominici, T, Nardinocchi, P, Varano, V, Chialastri, C, Puddu, PE, Torromeo, C, Sanchis Ruiz, L, Montserrat, S, Obach, V, Cervera, A, Bijnens, B, Sitges, M, Charisopoulou, D, Banner, N R, Rahman-Haley, S, Kim, BJ, Kang, JG, Lee, SH, Sung, KC, Kim, BS, Kang, JH, Lee, ES, Imperadore, F, Del Greco, M, Jermendy, AL, Horcsik, DV, Horvath, T, Celeng, C, Nagy, E, Bartykowszki, A, Tarnoki, DL, Merkely, B, Maurovich-Horvat, P, Jermendy, G, Whitaker, J, Demir, OM, Walton, J, Wragg, A, Alfakih, K, Karolyi, M, Szilveszter, B, Raaijmakers, R, Giepmans, W, Horvath, T, Merkely, B, Maurovich-Horvat, P, Koulaouzidis, GK, Charisopoulou, DC, Mcarthur, TM, Jenkins, PJJ, Henein, MH, Silva, T, Ramos, R, Oliveira, M, Marques, H, Cunha, P, Silva, MN, Barbosa, C, Sofia, A, Pimenta, R, Ferreira, RC, Al-Mallah, M, and Alsaileek, A

Abstract

Clinical PET acquisitions of the heart suffer from artefacts and drops in image quality due to the poor spatial resolution of the PET system. Moreover, cardiac PET images are further degraded by the blur caused by the breathing and beating motions, thus hampering diagnosis and evaluation of myocardial pathologies. Anatomy-enhanced PET reconstruction, using a high-resolution CT, has proven useful in brain imaging. In cardiac datasets however, due to the motion artefacts, the application of any restoring technique on datasets affected by motion blur needs to be preceded by the validation of the proposed method on realistic static datasets. In this work, the validation is performed using static cardiac ex vivo datasets obtained from a number of sacrificed sheep, scanned on a clinical PET/CT scanner. The aim of this work is to assess the effectiveness of reconstructions of the acquired datasets with different CT-based anatomical priors, in comparison to reconstructions currently applied in clinical practise. The gold standard to which all reconstructions are compared consists of images of the same hearts scanned on a small-animal PET scanner, whose high spatial resolution allows for almost artefact-free images. Encouraging results were obtained so far, with improvements in volume delineation and uniformity of activity values when anatomical information was used. Fig 1 shows the gold standard image (left) compared to a regular clinical reconstruction (middle) and to a reconstruction using the high-resolution CT as anatomical information (right). Figure

Published
2014
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22. Early Cryoablation After First Diagnosis of Atrial Fibrillation Reduces Arrhythmia Recurrence in Heart Failure Patients.

Author

Ando M, Yanagisawa S, Suzuki H, Yoshida Y, Kanzaki Y, Morishima I, Ishikawa S, Kamikubo Y, Okumura S, Kato H, Mizutani Y, Murase Y, Nakasuka K, Warita S, Sekimoto S, Takemoto Y, Takasugi N, Ohguchi S, Senga M, Yokoi K, Watanabe R, Ogura Y, Shibata R, Inden Y, and Murohara T

Abstract

Background: Atrial fibrillation (AF) and heart failure (HF) often coexist, leading to increased mortality. A cryoballoon-based approach is a potential treatment for patients with HF because of its safety and efficacy., Objectives: The authors sought to evaluate the optimal timing of cryoballoon ablation after the first clinical diagnosis of AF and its prognosis for patients with HF., Methods: This large-scale multicenter study retrospectively collected data of patients with HF who underwent cryoballoon ablation for AF from 17 Japanese institutions. Patients were divided into 2 groups depending on the duration between the first diagnosis and ablation using a median time of 0.5 year (IQR: 0.3-2.0 years). Clinical endpoints of recurrence, mortality, and HF hospitalization were compared between the 2 groups., Results: Among 3,655 patients, 543 with HF were included for analysis. During a median follow-up period of 21.3 months (IQR: 12.0-36.8 months), 151 of 520 patients (29%) had a recurrence. The AF recurrence rate was significantly lower in the early-ablation group (≤0.5 year) than in the delayed-ablation group (>0.5 year) (24% [65/266] vs 34% [86/254], respectively; P  = 0.018). In the multivariable analysis, early ablation ≤ 0.5 year was independently associated with an absence of recurrence (HR: 0.581; 95% CI: 0.401-0.842; P  = 0.004). Delayed time for cryoballoon ablation incrementally increased the risk of postablation recurrence. Antiarrhythmic drug use was independently associated with delayed ablation. No significant differences in mortality or HF hospitalization were observed between the 2 groups., Conclusions: Early cryoablation reduced the risk of recurrence in patients with HF, which may help improve clinical management., Competing Interests: Drs Yanagisawa and Shibata are affiliated with a department sponsored by Medtronic Japan. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (© 2024 The Authors.)

Published
2024
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23. Efficacy and feasibility of cryoballoon ablation for atrial fibrillation in patients with heart failure: A large-scale multicenter study.

Author

Yanagisawa S, Suzuki H, Kanzaki Y, Ishikawa S, Kamikubo Y, Okumura S, Kato H, Mizutani Y, Murase Y, Nakasuka K, Warita S, Sekimoto S, Takemoto Y, Takasugi N, Ohguchi S, Senga M, Yokoi K, Shibata R, Inden Y, and Murohara T

Subjects
Humans, Stroke Volume, Ventricular Function, Left, Feasibility Studies, Treatment Outcome, Atrial Fibrillation diagnosis, Atrial Fibrillation surgery, Catheter Ablation, Heart Failure, Heart Diseases surgery
Abstract

Introduction: Data are limited regarding outcomes of cryoballoon ablation for atrial fibrillation (AF) in patients with heart failure (HF). This large-scale multicenter study aimed to evaluate the prognosis of patients with HF after cryoballoon ablation for AF., Methods: Among 3655 patients undergoing cryoballoon ablation at 17 institutions, 549 patients (15%) (391 with paroxysmal AF and 158 with persistent AF) diagnosed with HF preoperatively were analyzed. Clinical endpoints were recurrence, mortality, and HF hospitalization after ablation., Results: Most patients had a preserved left ventricular ejection fraction (LVEF) ≥ 50%. During a mean follow-up period of 25.7 months, recurrence, all-cause death, and HF hospitalization occurred in 29%, 4.0%, and 4.8%, respectively. Cardiac function on echocardiography and B-type natriuretic peptide (BNP) levels significantly improved postoperatively, and the effect was more pronounced in the nonrecurrence group. Major complications occurred in 33 patients (6.0%), but most complications were phrenic nerve palsy (3.6%). Although death and HF hospitalization occurred more frequently in patients with LVEF ≤ 40% (n = 73) and New York Heart Association (NYHA) class III-IV (n = 19) than other subgroups, the BNP levels, and LVEF significantly improved after ablation in all LVEF and NYHA class subgroups. High BNP levels, NHYA class, CHADS 2 score, and structural heart disease, but not postablation recurrence, independently predicted death, and HF hospitalization on multivariate analysis. The patients with tachycardia-induced cardiomyopathy had better recovery of BNP levels and LVEF after ablation than those with structural heart disease., Conclusions: Cryoballoon ablation for AF in HF patients is feasible and leads to significantly improved cardiac function., (© 2022 Wiley Periodicals LLC.)

Published
2022
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24. Successful endoscopic clipping management of a left atrioesophageal fistula after atrial fibrillation catheter ablation: A case report of a young male patient.

Author

Oshima Y, Yoshizane T, Warita S, Noda T, and Yamazaki K

Abstract

Atrioesophageal fistula (AEF) is a rare and serious complication of atrial fibrillation (AF) ablation, forming a connection between the atrium and esophagus. A systematic treatment approach for AEF has not been established to date. Herein, we report the case of a young male patient with left AEF after AF catheter ablation, which was successfully treated with the Over-the-Scope Clip (Ovesco Endoscopy AG, Tübingen, Germany) and conservative management. Despite having a double-orifice mitral valve and tricuspid valve, the patient had no symptoms or valve disease. The patient was readmitted three weeks after the procedure owing to fever, hematemesis, consciousness disturbance, hemiplegia, and systemic convulsions. Indigenous bacteria in the oral cavity were detected in blood culture. Magnetic resonance imaging of the brain showed multiple cerebral infarctions. Chest computed tomography showed mediastinal air, suggesting an AEF diagnosis. Subsequently, an endoscopic closure using the Over-the-Scope Clip was performed, leading to a successful recovery and patient discharge on day 87 after admission. This is the first case report of a successful management of AEF after radiofrequency ablation using the Over-the-Scope Clip system. Although surgery is the main treatment for AEFs, we performed nonsurgical management using the clip, demonstrating a potential treatment option for AEF., Learning Objective: Surgical intervention is usually superior to endoscopic intervention and conservative management for treatment of atrioesophageal fistula. To the best of our knowledge, this is the first case to be successfully managed by endoscopic clipping and conservative management., Competing Interests: The authors declare that there is no conflict of interest., (© 2022 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved. All rights reserved.)

Published
2022
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25. Effects of pitavastatin on cardiac structure and function and on prevention of atrial fibrillation in elderly hypertensive patients: a prospective study of 2-years' follow-up.

Author

Warita S, Kawasaki M, Tanaka R, Ono K, Kojima T, Hirose T, Iwama M, Watanabe T, Nishigaki K, Takemura G, Noda T, Watanabe S, and Minatoguchi S

Subjects
Age Factors, Aged, Aged, 80 and over, Atrial Fibrillation diagnosis, Atrial Fibrillation mortality, Atrial Fibrillation physiopathology, Chi-Square Distribution, Disease-Free Survival, Dyslipidemias diagnosis, Dyslipidemias mortality, Dyslipidemias physiopathology, Electrocardiography, Female, Follow-Up Studies, Heart Atria diagnostic imaging, Heart Atria drug effects, Heart Atria physiopathology, Heart Ventricles diagnostic imaging, Heart Ventricles drug effects, Heart Ventricles physiopathology, Humans, Hypertension diagnosis, Hypertension mortality, Hypertension physiopathology, Hypertrophy, Left Ventricular drug therapy, Hypertrophy, Left Ventricular physiopathology, Japan epidemiology, Kaplan-Meier Estimate, Male, Multivariate Analysis, Proportional Hazards Models, Prospective Studies, Stroke Volume drug effects, Time Factors, Treatment Outcome, Ultrasonography, Ventricular Dysfunction, Left diagnosis, Ventricular Dysfunction, Left mortality, Ventricular Dysfunction, Left physiopathology, Atrial Fibrillation prevention & control, Atrial Function, Left drug effects, Dyslipidemias drug therapy, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Hypertension drug therapy, Quinolines therapeutic use, Ventricular Dysfunction, Left prevention & control, Ventricular Function, Left drug effects
Abstract

Background: The aim of this prospective study was to determine whether statin therapy (pitavastatin) has a beneficial effect on the prevention of new-onset atrial fibrillation (AF) in elderly patients with hypertension (HTN) and to evaluate the relationships among statin treatment, the development of AF, and left atrial (LA) and ventricular (LV) structure and function., Methods and Results: We enrolled eligible elderly patients (≥65 years old) with HTN and LV hypertrophy until the number of patients reached 110 in both groups. The 110 patients with HTN who needed statin therapy (HTN with statin group) were started on pitavastatin (1-2 mg/day), and both groups continued with appropriate medication for HTN. LV and LA structure and function were examined by conventional and speckle-tracking echocardiography at baseline and after 1 year. LA volume and function in the HTN with statin group improved more than in the HTN without statin group. There was a significant difference in survival free of new-onset AF in the patients with and without statin therapy during the 2-year follow-up (hazard ratio: 0.32, P=0.027)., Conclusions: Pitavastatin had a beneficial effect on LV diastolic function and LA structure and function in elderly patients with HTN. Pitavastatin treatment may be associated with a lower incidence of new-onset AF.

Published
2012
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26. Inter- and intraobserver reliability of the hand-held monitor for measuring salivary alpha-amylase level.

Author

Aoyagi K, Karibe H, Kawakami T, Warita S, Shimazu K, and Ogata K

Subjects
Adult, Female, Humans, Male, Reproducibility of Results, Chemistry Techniques, Analytical instrumentation, Chemistry Techniques, Analytical methods, Observer Variation, Salivary alpha-Amylases analysis
Abstract

Background: Alpha-amylase levels can be used to quantify the psychological stress. A hand-held salivary alpha-amylase (sAA) monitor was recently developed for measuring sAA levels. This study investigated the inter- and intraobserver reliability of this novel instrument., Methods: Saliva was collected from 32 healthy volunteers. To determine the interobserver reliability, three observers measured the sAA levels in 10 samples. To determine the intraobserver reliability, one observer performed consecutive sAA measurements in 32 samples. The sAA levels in these 32 samples were also measured by a conventional laboratory enzymatic analysis, and these measurements were compared with those obtained using the hand-held monitor., Results: Intraclass correlation coefficients indicated excellent inter- and intraobserver reliability (0.99 and 0.92, respectively). The results from the monitor and the lab assay showed a significant positive correlation (r = 0.96, p < 0.001)., Conclusions: These results suggest that the hand-held monitor is highly reliable for measuring the sAA level.

Published
2011

27. Combined effect of paste containing casein phosphopeptide-amorphous calcium phosphate and fluoride on enamel lesions: an in vitro pH-cycling study.

Author

Ogata K, Warita S, Shimazu K, Kawakami T, Aoyagi K, and Karibe H

Subjects
Animals, Cattle, Dental Enamel, Drug Combinations, Microradiography, Microscopy, Polarization, Cariostatic Agents therapeutic use, Caseins therapeutic use, Sodium Fluoride therapeutic use, Tooth Demineralization therapy, Tooth Remineralization methods
Abstract

Purpose: The purpose of this study was to show through enamel remineralization that a combination of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and fluoride is better than fluoride alone when the processing time for remineralization is short., Methods: The bovine enamel slabs (n=28) were subjected to pH cycling for 4 days. Paste containing CPP-ACP and/or fluoride was applied for 30 minutes daily. The sections were observed using a polarizing microscope and microradiographs., Results: In the groups treated solely with sodium fluoride (NaF) solution, tissue loss on the enamel surface was observed. On the other hand, in the groups that had been treated with a mixture of the NaF solution and CPP-ACP, the enamel surface was maintained., Conclusions: These results show that casein phosphopeptide-amorphous calcium phosphate-containing paste has the ability to maintain the enamel surface; the combined use of CPP-ACP paste and fluoride enhances this ability, thereby reducing demineralization.

Published
2010

28. Factors affecting the use of protective stabilization in dental patients with cognitive disabilities.

Author

Karibe H, Umezu Y, Hasegawa Y, Ogihara E, Masuda R, Ogata K, Shirase T, Kawakami T, and Warita S

Subjects
Adult, Antipsychotic Agents therapeutic use, Case-Control Studies, Dental Anxiety therapy, Dental Care for Chronically Ill methods, Female, Humans, Immobilization instrumentation, Immobilization statistics & numerical data, Male, Matched-Pair Analysis, Mental Disorders drug therapy, Middle Aged, Odds Ratio, Severity of Illness Index, Dental Anxiety complications, Dental Care for Disabled methods, Immobilization methods, Mental Disorders complications
Abstract

The goal of this study was to investigate the effects of various factors on the use of protective stabilization (PS) in patients with cognitive disabilities during dental treatment. An observational, case-control design was used with a case (protective stabilization group or PS group) and a control (usual management group or UM group) to assess a sample of subjects. Forty-eight dental patients were selected from the two groups. Various factors were compared between the groups. The prevalence of patients with profound cognitive disabilities was higher in the PS group (68.7%) than in the UM group (6.2%) (p<0.0001). The odds ratio of using protective stabilization was 6.18 (95% confidence interval, 1.20-31.72) for patients who were prescribed antipsychotic agents. Our results suggest that patients with profound cognitive disabilities and/or prescriptions for antipsychotic medications have more behavioral disturbances during dental treatments and require protective stabilization.

Published
2008
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29. Over 10 years clinical outcomes in patients with mitral stenosis with unilateral commissural calcification treated with catheter balloon commissurotomy: single-center experience.

Author

Tanaka S, Watanabe S, Matsuo H, Segawa T, Iwama M, Hirose T, Takahashi H, Ono K, Warita S, Kojima T, Minatoguchi S, and Fujiwara H

Subjects
Female, Humans, Male, Middle Aged, Treatment Outcome, Calcinosis pathology, Catheterization methods, Mitral Valve pathology, Mitral Valve Stenosis pathology, Mitral Valve Stenosis therapy
Abstract

Objectives: Treatment of mitral valve stenosis with catheter balloon commissurotomy (CBC) yields acceptable immediate results even when one commissure shows calcification. However, the long-term outcomes in such cases remain unclear., Methods: We examined the immediate and long-term (mean: 11+/-5 years) outcomes of 57 patients who underwent 58 CBC procedures. Patients were classified into group A (no commissural calcification, n=44) or group B (unilateral commissural calcification, n=13). From the appearance of the mitral valve just after CBC, commissurotomy was judged to be bilateral, incomplete, or excessive. End points were death, recurrence of congestive heart failure necessitating hospitalization, embolism, repeat CBC, or mitral valve replacement., Results: There were significant numbers of unfavorable mitral valve morphologies evaluated according to Sellors classification, estimated by echocardiograms; Sellors class I: 20 patients in group A vs. none in group B (p<0.05). Class II: 24 in group A vs. 10 in group B. and class III: none in group A vs. 3 in group B (p<0.05). CBC increased the mitral valve area (Gorin formula) from 1.3+/-0.3 to 2.1+/-0.5 cm2 in patients in group A and from 1.1+/-0.2 to 1.8+/-0.4 cm2 in those in group B (p=n.s.). Among the latter, there were significantly more excessive commissurotomies than in group A and no bilateral commissurotomy. The overall or event-free survival rate during the follow-up of group B showed a lower tendency than in group A (overall: group A: 86.2% vs. group B: 84.6%, p, n.s. event-free: 56.8% vs. 46.2%, respectively, p=n.s.). Univariate predictors of all events in group B included post-CBC pulmonary arterial pressure, and the pattern of commissurotomy after CBC (p<0.05). Excessive commissurotomy increased clinical events some years later, after the procedure., Conclusions: In this study, involving a small number of subjects, long-term outcomes of patients with unilateral commissural calcification receiving CBC showed no significant difference as compared to those with commissural calcification absence. However, it is necessary to perform careful follow-up of CBC patients with unilateral commissural calcium.

Published
2008
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30. Prospective randomized trial comparing a nitinol self-expanding coronary stent with low-pressure dilatation and a high-pressure balloon expandable bare metal stent.

Author

Tanaka S, Watanabe S, Matsuo H, Segawa T, Iwama M, Hirose T, Takahashi H, Ono K, Warita S, Kojima T, Minatoguchi S, and Fujiwara H

Subjects
Aged, Coronary Angiography, Female, Follow-Up Studies, Humans, Male, Myocardial Ischemia diagnostic imaging, Pressure, Prospective Studies, Prosthesis Design, Severity of Illness Index, Treatment Outcome, Ultrasonography, Interventional, Alloys, Angioplasty, Balloon, Coronary instrumentation, Myocardial Ischemia surgery, Myocardial Revascularization instrumentation, Prosthesis Implantation instrumentation, Stents
Abstract

The recent SCORES trial demonstrated that lower dilatation pressures seen with self-expanding (SE) stents may be associated with lower rates of target lesion revascularization (TLR). To determine whether SE stents with low-pressure dilatation are as safe and effective as balloon expandable (BE) stents. We randomly assigned 254 patients with 279 coronary lesions to groups receiving either SE with low-pressure dilatation <12 atm (n = 143) or conventional BE stents (n = 136). Thereafter, acute results and long-term outcomes were compared. Baseline patient and angiographic characteristics were similar in two groups. The incidence of procedural complications, such as slow flow, side branch occlusion, and edge dissection were significantly lower in the SE group than in the BE group (overall: SE, 17; BE, 35; P < 0.01), and the occurrence of myocardial infarction tended to be lower in SE than in BE (SE, 1; BE, 4; not significant). Although acute gain was significantly smaller with SE than BE (SE, 2.21 +/- 0.65 mm; BE, 2.42 +/- 0.62; P < 0.01), probably due to gradual expansion of the SE stent, nearly identical minimum luminal diameters on follow-up angiography (SE, 2.14 +/- 0.92 mm vs. BE, 2.22 +/- 0.93; not significant) and similar angiographic restenosis (SE, 18.1% vs. BE, 20.5%). and TLR rates (SE, 16.1% vs. BE, 14.0%) were apparent. This prospective randomized trial demonstrates that SE stents with low-pressure dilatation is safe and effective strategy for treating coronary arterial stenosis.

Published
2008
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31. Cross-cultural comparison of the attitudes of dental students in three countries.

Author

Karibe H, Suzuki A, Sekimoto T, Srithavaj ML, Iamaroon A, Warita S, Kawakami T, Ogata K, Shirase T, and Nakahara S

Subjects
British Columbia, Canada, Family, General Practice, Dental, Humans, Japan, Licensure, Dental, Personal Satisfaction, School Admission Criteria, Socioeconomic Factors, Specialties, Dental, Surveys and Questionnaires, Thailand, Attitude of Health Personnel, Career Choice, Cross-Cultural Comparison, Education, Dental, Students, Dental psychology
Abstract

The aim of this study was to identify and compare the attitudes of dental students toward their career choice and dental education in three different countries. Three hundred thirty-six dental students from the University of British Columbia, Canada; Mahidol University and Chiang Mai University, Thailand; and Nippon Dental University, Japan, participated in this study. Information was derived from a questionnaire consisting of career choice items and dental education items. Significant differences in the responses of the participants from each of the three countries were detected for each of the questionnaire items (P<0.001). Regarding factors that may have served as motivations for career choice, the majority of dental students from each country indicated positive reasons such as interpersonal motives, caring for other people, and academic interest. For future career options, the majority of Japanese and Canadian students planned to work as general dentists. Thai students were more likely than Japanese or Canadian to prefer specialization than practicing general dentistry. Nearly three-quarters of the Canadian and Thai students were satisfied with the teaching faculty of their schools, while only a quarter of the Japanese students indicated satisfaction. The findings from this study enhance our understanding of differences and/or similarities among dental students in three nations; this information may help to define strategies to improve the quality of international student exchange programs.

Published
2007

32. Prediction of genetic risk for dyslipidemia.

Author

Yamada Y, Matsuo H, Warita S, Watanabe S, Kato K, Oguri M, Yokoi K, Metoki N, Yoshida H, Satoh K, Ichihara S, Aoyagi Y, Yasunaga A, Park H, Tanaka M, and Nozawa Y

Subjects
Aged, Biomarkers, Cohort Studies, Female, Genotype, Humans, Lipids blood, Male, Middle Aged, Prognosis, Prospective Studies, Risk Factors, Apolipoproteins genetics, Cholesterol, HDL genetics, Cholesterol, LDL genetics, Dyslipidemias genetics, Lipoprotein Lipase genetics, Polymorphism, Single Nucleotide
Abstract

The purpose of the present study was to identify genetic variants that confer susceptibility to dyslipidemia. A total of 5213 individuals from two independent populations were examined: Subject panel A comprised 3794 individuals who visited participating hospitals; subject panel B comprised 1419 community-dwelling elderly individuals. The genotypes for 100 polymorphisms of 65 candidate genes were determined. The chi(2) test and multivariable logistic regression analysis revealed that seven polymorphisms of APOA5, APOC3, APOA1, ACAT2, and LPL were significantly associated with hypertriglyceridemia, six polymorphisms of APOA5, LIPC, and CYP3A4 with low HDL-cholesterol, and three polymorphisms of APOE and CCR2 with high LDL-cholesterol in subject panel A. For validation of these associations, the same polymorphisms were examined in subject panel B. Six polymorphisms of APOA5, APOC3, APOA1, and LPL were again significantly associated with hypertriglyceridemia, three polymorphisms of APOA5 with low HDL-cholesterol, and two polymorphisms of APOE with high LDL-cholesterol. Serum triglyceride, HDL-cholesterol, and LDL-cholesterol concentrations differed significantly among genotypes of these corresponding polymorphisms in both subject panels. These results indicate that polymorphisms of APOA5, APOC3, APOA1, and LPL are determinants of hypertriglyceridemia and that those of APOA5 and APOE are determinants of low HDL-cholesterol and high LDL-cholesterol, respectively, in Japanese individuals.

Published
2007
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33. Prevention of no-reflow/slow-flow phenomenon during rotational atherectomy--a prospective randomized study comparing intracoronary continuous infusion of verapamil and nicorandil.

Author

Matsuo H, Watanabe S, Watanabe T, Warita S, Kojima T, Hirose T, Iwama M, Ono K, Takahashi H, Segawa T, Minatoguchi S, and Fujiwara H

Subjects
Aged, Coronary Angiography, Coronary Artery Disease diagnostic imaging, Coronary Artery Disease physiopathology, Coronary Restenosis diagnostic imaging, Coronary Restenosis physiopathology, Coronary Vessels, Drug Therapy, Combination, Electrocardiography, Female, Follow-Up Studies, Humans, Infusions, Intra-Arterial, Male, Prospective Studies, Treatment Outcome, Atherectomy, Coronary methods, Coronary Artery Disease surgery, Coronary Restenosis prevention & control, Nicorandil administration & dosage, Vasodilator Agents administration & dosage, Verapamil administration & dosage
Abstract

Background: The potential exists for microcirculatory impairment during rotational coronary atherectomy (RA) due to embolization of plaque debris, platelet aggregation, or vasospasm. This prospective randomized pilot study aimed to confirm favorable effects of nicorandil during RA compared with verapamil., Methods: We randomly assigned 200 patients with 219 coronary lesions planned to undergo RA with intracoronary infusion of nicorandil cocktail (100 patients, 109 lesions), which contained nicorandil 24 mg, nitroglycerin 5 mg, and heparin 10,000 U in 1000 mL saline, or verapamil cocktail (100 patients, 110 lesions), which contained verapamil 10 mg instead of nicorandil. Drug cocktails were infused through a 4F Teflon sheath of the rotablator system during RA. The primary end point was incidence of no-reflow/slow-flow phenomenon; secondary end points were those of continuous ST elevation, Q-wave myocardial infarction (MI), and non-Q-wave MI., Results: Group baseline and coronary angiographic characteristics were similar. Rotational atherectomy was performed successfully, and no patients died or required emergency coronary artery bypass grafting. Incidence of no-reflow/slow-flow phenomenon was significantly lower in the nicorandil group (nicorandil 5/109 lesions, verapamil 13/110 lesions, P < .005). Incidences of persistent ST-segment elevation and non-Q-wave MI were significantly lower in the nicorandil group (ST-segment elevation: nicorandil 3/100 patients, verapamil 10/100 patients, P < .05; non-Q-wave MI: nicorandil 2/100, verapamil 9/100 patients, P < .05). One patient each in the 2 groups experienced Q-wave MI., Conclusion: Our findings suggest that continuous intracoronary infusion of nicorandil during RA prevents acute periprocedural complications. Nicorandil should be used as adjunctive treatment during RA.

Published
2007
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