1
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Honda T, Onishi H, Fukui H, Yano K, Kiso K, Nakamoto A, Tsuboyama T, Ota T, Tatsumi M, Tahara S, Kobayashi S, Eguchi H, Tomiyama N. Extracellular volume fraction using contrast-enhanced CT is useful in differentiating intrahepatic cholangiocellular carcinoma from hepatocellular carcinoma. Front Oncol 2023; 13:1214977. [PMID: 37483497 PMCID: PMC10359704 DOI: 10.3389/fonc.2023.1214977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
Objectives To evaluate whether tumor extracellular volume fraction (fECV) on contrast-enhanced computed tomography (CT) aids in the differentiation between intrahepatic cholangiocarcinoma (ICC) and hepatocellular carcinoma (HCC). Methods In this retrospective study, 113 patients with pathologically confirmed ICC (n = 39) or HCC (n = 74) who had undergone preoperative contrast-enhanced CT were enrolled. Enhancement values of the tumor (Etumor) and aorta (Eaorta) were obtained in the precontrast and equilibrium phase CT images. fECV was calculated using the following equation: fECV [%] = Etumor/Eaorta × (100 - hematocrit [%]). fECV values were compared between the ICC and HCC groups using Welch's t-test. The diagnostic performance of fECV for differentiating ICC and HCC was assessed using receiver-operating characteristic (ROC) analysis. fECV and the CT imaging features of tumors were evaluated by two radiologists. Multivariate logistic regression analysis was performed to identify factors predicting a diagnosis of ICC. Results Mean fECV was significantly higher in ICCs (43.8% ± 13.2%) than that in HCCs (31.6% ± 9.0%, p < 0.001). The area under the curve for differentiating ICC from HCC was 0.763 when the cutoff value of fECV was 41.5%. The multivariate analysis identified fECV (unit OR: 1.10; 95% CI: 1.01-1.21; p < 0.05), peripheral rim enhancement during the arterial phase (OR: 17.0; 95% CI: 1.29-225; p < 0.05), and absence of washout pattern (OR: 235; 95% CI: 14.03-3933; p < 0.001) as independent CT features for differentiating between the two tumor types. Conclusions A high value of fECV, peripheral rim enhancement during the arterial phase, and absence of washout pattern were independent factors in the differentiation of ICC from HCC.
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Affiliation(s)
- T. Honda
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - H. Onishi
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - H. Fukui
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - K. Yano
- Department of Radiology, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - K. Kiso
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - A. Nakamoto
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - T. Tsuboyama
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - T. Ota
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - M. Tatsumi
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - S. Tahara
- Department of Pathology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - S. Kobayashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - H. Eguchi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - N. Tomiyama
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
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2
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Watanabe T, Nemoto A, Nguyen A, Grinstein J, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Onsager D, Song T, Salerno C, Jeevanandam V, Ota T. Impact on Non-Cardiac Surgery for Patients with Lvad Support. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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3
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Nemoto A, Belkin M, Sarswat N, Chung B, Nguyen A, Smith B, Kalantari S, Kim G, Grinstein J, Pinney S, Onsager D, Song T, Salerno C, Jeevanandam V, Ota T. Impact of Surgical Techniques on Survival and Hemodynamics after Orthotopic Heart Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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4
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Yamaguchi S, Kawata Y, Murofushi Y, Ota T. The influence of vulnerability on depression among Japanese university athletes. Front Sports Act Living 2023; 4:1003342. [PMID: 36713946 PMCID: PMC9877523 DOI: 10.3389/fspor.2022.1003342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023] Open
Abstract
Objective This study examined the estimated causal relationship between vulnerability and depressive symptoms in Japanese university athletes and how the degree of vulnerability affects depressive symptoms. Materials and methods In Study 1, 248 Japanese university athletes completed a continual survey from Time 1 to Time 3. In Study 2, 562 Japanese university athletes responded to another survey during the same period. Structural equation modeling was performed to estimate the causal relationship using the cross-lagged effects model for the three waves. Next, a binomial logistic regression analysis was performed to examine the influence of vulnerability on depression. Results Results of the cross-lagged effects model showed that all paths from vulnerability to depressive symptoms were significant, and all paths from depressive symptoms to vulnerability were not significant. Thus, vulnerability was the causative variable and depressive symptoms were the outcome variables within the causal relationship. The logistic regression results showed that those with high vulnerability were 1.7 times more likely to have moderate or higher depressive symptoms than those with low vulnerability. Vulnerable individuals are at a higher risk for developing depressive symptoms. By verifying the causal relationship between vulnerability and depressive symptoms, we can contribute to the enhancement of mental health care in accordance with the weakest link model. Appropriate psychological support for athletes can decrease depression and improve their mental health.
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Affiliation(s)
- S Yamaguchi
- Faculty of Health and Sports Science, Juntendo University, Inzaishi, Chiba, Japan
| | - Y Kawata
- Faculty of Health and Sports Science, Juntendo University, Inzaishi, Chiba, Japan.,Graduate School of Health and Sports Science, Juntendo University, Inzaishi, Chiba, Japan.,Institute of Health and Sports Science and Medicine, Juntendo University, Inzaishi, Chiba, Japan
| | - Y Murofushi
- Faculty of Health and Sports Science, Juntendo University, Inzaishi, Chiba, Japan.,Graduate School of Health and Sports Science, Juntendo University, Inzaishi, Chiba, Japan
| | - T Ota
- Faculty of Health and Sports Science, Juntendo University, Inzaishi, Chiba, Japan.,Graduate School of Health and Sports Science, Juntendo University, Inzaishi, Chiba, Japan.,Institute of Health and Sports Science and Medicine, Juntendo University, Inzaishi, Chiba, Japan
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5
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Nishida H, Jeevanandam V, Salerno C, Song T, Onsager D, Nguyen A, Grinstein J, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Ota T. Concomitant left atrial appendage closure with left ventricular assist device surgery can reduce ischemic cerebrovascular accidents. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
It remains unknown if concomitant left atrial appendage closure (LAAC) at the time of left ventricular assist device (LVAD) surgery can reduce ischemic cerebrovascular accidents.
Purpose
The purpose of this study is to assess the impact of LAAC at LVAD surgery on the incidence of ischemic cerebrovascular accidents.
Methods
Between January 2012 and November 2021, 310 patients underwent LVAD surgery with HeartMate II or III. Out of 310 patients, 98 patients (31.6%) underwent concomitant LAAC. The cohort was divided into two groups: patients with LAAC (Group A, n=98) and without LAAC (Group B, n=212). To minimize device bias, LVAD surgery with HeartWare HVAD device was excluded. The ischemic cerebrovascular accident was defined as ischemic stroke, hemorrhagic stroke or transient ischemic attack. We reviewed early and long-term clinical outcomes. The incidence of ischemic cerebrovascular accidents was compared between two groups using the Kaplan-Meier method. We also investigated if LAAC was associated with ischemic cerebrovascular accidents by Cox proportional hazards analysis.
Results
There were no significant differences in baseline characteristics between two groups including age (Group A: 55.0±12.3 years old, Group B: 56.9±14.1 years old, p=0.26), preoperative CHADS2 score (Group A: 2.40±1.1, Group B: 2.58±1.1, p=0.19) and history of atrial fibrillation (Group A: 42.9%, Group B: 42.5%, p=0.95). In-hospital mortality was not significantly different between the two groups (Group A: 7.1%, Group B: 12.3%, p=0.16). In terms of postoperative complications, there were no significant differences between two groups in requiring extracorporeal membrane oxygenation, re-exploration for bleeding and newly required hemodialysis. Median follow up period was 474 days. Thirty-five patients (11.2%) developed ischemic cerebrovascular accidents (5 patients in Group A and 30 patients in Group B). The rate of freedom from ischemic cerebrovascular accidents in Group A (94.1% at 500 days and 94.1% at 1500 days) was significantly higher than that in Group B (88.2% at 500 days and 77.4% at 1500 days; log rank=0.024). In a Cox proportional hazards regression analysis including LAAC, age, history of atrial fibrillation, diabetes mellitus and Heartmate 3 device implantation, LAAC was associated with reducing the incidence of ischemic cerebrovascular accidents (hazard ratio 0.37, 95% CI 0.13–0.89, p=0.02).
Conclusion
Concomitant LAAC at the time of LVAD surgery can reduce ischemic cerebrovascular accidents without increasing perioperative mortality and complications.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- H Nishida
- University of Chicago Medicine , Chicago , United States of America
| | - V Jeevanandam
- University of Chicago Medicine , Chicago , United States of America
| | - C Salerno
- University of Chicago Medicine , Chicago , United States of America
| | - T Song
- University of Chicago Medicine , Chicago , United States of America
| | - D Onsager
- University of Chicago Medicine , Chicago , United States of America
| | - A Nguyen
- University of Chicago Medicine , Chicago , United States of America
| | - J Grinstein
- University of Chicago Medicine , Chicago , United States of America
| | - B Chung
- University of Chicago Medicine , Chicago , United States of America
| | - B Smith
- University of Chicago Medicine , Chicago , United States of America
| | - S Kalantari
- University of Chicago Medicine , Chicago , United States of America
| | - N Sarswat
- University of Chicago Medicine , Chicago , United States of America
| | - G Kim
- University of Chicago Medicine , Chicago , United States of America
| | - S Pinney
- University of Chicago Medicine , Chicago , United States of America
| | - T Ota
- University of Chicago Medicine , Chicago , United States of America
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6
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Morita R, Hata A, Ota T, Sumi T, Yoshioka H, Osugi J, Fujisaka Y, Mitsui M, Morita S, Katakami N. EP08.02-133 Sequential Afatinib to Osimertinib in EGFR-mutant NSCLC: A Prospective Observational Study, Gio-Tag Japan Interim Report. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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7
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Ishikawa K, Sasaki H, Ogushi Y, Niikura A, Ota T, Ichimura Y, Hashimoto Y, Kurokawa I, Sugishita H, Tanifuji S, Yamagishi M, Shimoyama H, Ota M, Oshinomi K, Hayashi K, Morita J, Shichijo T, Fukagai T, Sugawara S. Lipid abnormality, current diabetes and age affect erectile hardness ∼ An analysis of data from complete medical checkups performed at a single hospital in Japan. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Yamagishi M, Sasaki H, Ogushi Y, Niikura A, Ota T, Ichimura Y, Hashimoto Y, Sugishita H, Kurokawa I, Tanifuji S, Imamura Y, Shimoyama H, Ota M, Ishikawa K, Hayashi K, Fukagai T. A study of erectile dysfunction in men 40 years of age or younger. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Shimoyama H, Sasaki H, Ogushi Y, Niikura A, Ota T, Ichimura Y, Hshimoto Y, Kurokawa I, Sugishita H, Tanifuji S, Yamagishi M, Imamura Y, Ota M, Ishikawa K, Hayashi K. Clinical analysis on the pharmaceutical formulation of VIAGRA OD Film. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Plana A, Carter S, Kanelidis A, Ota T, Smith B, Chung B. Translocation of LVAD Pump and Driveline Causing Bowel Perforation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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11
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Tsukuda H, Tsuya A, Hasegawa Y, Ota T, Fukuoka M. Migratory bone lesions in lymphoma. QJM 2022; 115:177-178. [PMID: 35094089 DOI: 10.1093/qjmed/hcac031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H Tsukuda
- Department of Medical Oncology, Izumi City General Hospital, 4-10-10 Fuchu-Cho, Izumi, Osaka 594-0073, Japan
| | - A Tsuya
- Department of Medical Oncology, Izumi City General Hospital, 4-10-10 Fuchu-Cho, Izumi, Osaka 594-0073, Japan
| | - Y Hasegawa
- Department of Medical Oncology, Izumi City General Hospital, 4-10-10 Fuchu-Cho, Izumi, Osaka 594-0073, Japan
| | - T Ota
- Department of Medical Oncology, Izumi City General Hospital, 4-10-10 Fuchu-Cho, Izumi, Osaka 594-0073, Japan
| | - M Fukuoka
- Department of Medical Oncology, Izumi City General Hospital, 4-10-10 Fuchu-Cho, Izumi, Osaka 594-0073, Japan
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12
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Henry M, Abutaleb A, Jeevanandam V, Smith H, Belkin M, Husain A, Pinney S, Ota T, Mor-Avi V, Lang RM, Addetia K. Intracardiac device associated interference with tricuspid valve apparatus on echocardiography: What can we learn from pathology? Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
New or worsening tricuspid regurgitation (TR) is associated with right-sided heart failure and worsened outcomes. Cardiac Implantable Electronic Devices (CIEDs), which are being implanted at growing rates worldwide, are increasingly being recognized as associated with TR occurrence related to interference with the tricuspid valve (TV) apparatus. Purpose: We sought to identify echocardiographic features in the right ventricle and TV that differentiate patients who have anatomically demonstrated interference with the TV on direct pathology inspection.
Methods
Explanted hearts from 44 consecutive patients undergoing orthotopic heart transplant (55 ±13 yrs, 68% men) with known implanted CIEDs were dissected to assess the presence (n = 18) or absence (n = 26) of CIED interference with the TV (Figure). Echocardiographic measurements performed prior to transplantation, including left and right ventricular (LV, RV) size and performance metrics as well as TR severity, were compared between both groups using non-parametric testing.
Results
Echocardiographic features of patients with and without anatomically demonstrated TV interference are shown in the Table. Although overall LV dimensions and volumes were not different between the two groups and LV ejection fraction was severely reduced in both groups, patients demonstrating CIED interference trended towards larger right atrial volumes (Table) and also larger RV and tricuspid annular sizes. Importantly, however, they were more than 4 times likely to have abnormal right ventricular function. Lastly, patients with tricuspid apparatus interference tended to have more significant TR, although these differences have not reached statistical significance (Table).
Conclusion
CIED interreference with tricuspid valve apparatus occurs frequently (41%) among patients with CIEDs, who undergo orthotopic heart transplantation. This may be associated with worsening TV function with subsequent changes in right atrial and ventricular geometry and function. In light of prior data showing poor outcomes with CIED associated TR, this study emphasizes the importance of non-invasive assessment of CIED interference with the tricuspid valve, in order to improve device placement and patient outcomes. Abstract Figure Abstract Table
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Affiliation(s)
- M Henry
- The University of Chicago Medical Center, Chicago, United States of America
| | - A Abutaleb
- The University of Chicago Medical Center, Chicago, United States of America
| | - V Jeevanandam
- The University of Chicago Medical Center, Chicago, United States of America
| | - H Smith
- The University of Chicago Medical Center, Chicago, United States of America
| | - M Belkin
- The University of Chicago Medical Center, Chicago, United States of America
| | - A Husain
- The University of Chicago Medical Center, Chicago, United States of America
| | - S Pinney
- The University of Chicago Medical Center, Chicago, United States of America
| | - T Ota
- The University of Chicago Medical Center, Chicago, United States of America
| | - V Mor-Avi
- The University of Chicago Medical Center, Chicago, United States of America
| | - RM Lang
- The University of Chicago Medical Center, Chicago, United States of America
| | - K Addetia
- The University of Chicago Medical Center, Chicago, United States of America
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13
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Kono R, Ota T, Ito T, Miyaoka Y, Ishibashi H, Kanno Y, Miki N. Design of microfluidic channels to prevent negative filtration in implantable hemofiltration devices. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:5051-5054. [PMID: 34892342 DOI: 10.1109/embc46164.2021.9630070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In order to improve the quality of life of dialysis patients, our group have been developing an implantable hemofiltration device (IHFD) composed of multiple layers of dialysis membranes and microfluidic channels. To improve the hemodialysis performance of IHFD, preventing the negative filtration, which is caused by the oncotic pressure of blood, is mandatory. In this study, we fabricated IHFDs with five different microchannel designs and experimentally investigated the performance of each device in in vitro experiment. In addition, the successful IHFD was further evaluated by ex vivo experiments with a beagle dog. The experiments verified the effectiveness of the microchannel design, which will be used for the IHFD for in vivo experiments with pigs in the future.
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14
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Zhang Q, Ota T, Yoshida T, Ino D, Sato MP, Doi K, Horii A, Nin F, Hibino H. Electrochemical properties of the non-excitable tissue stria vascularis of the mammalian cochlea are sensitive to sounds. J Physiol 2021; 599:4497-4516. [PMID: 34426971 DOI: 10.1113/jp281981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/18/2021] [Indexed: 11/08/2022] Open
Abstract
Excitable cochlear hair cells convert the mechanical energy of sounds into the electrical signals necessary for neurotransmission. The key process is cellular depolarization via K+ entry from K+ -enriched endolymph through hair cells' mechanosensitive channels. Positive 80 mV potential in endolymph accelerates the K+ entry, thereby sensitizing hearing. This potential represents positive extracellular potential within the epithelial-like stria vascularis; the latter potential stems from K+ equilibrium potential (EK ) across the strial membrane. Extra- and intracellular [K+ ] determining EK are likely maintained by continuous unidirectional circulation of K+ through a putative K+ transport pathway containing hair cells and stria. Whether and how the non-excitable tissue stria vascularis responds to acoustic stimuli remains unclear. Therefore, we analysed a cochlear portion for the best frequency, 1 kHz, by theoretical and experimental approaches. We have previously developed a computational model that integrates ion channels and transporters in the stria and hair cells into a circuit and described a circulation current composed of K+ . Here, in this model, mimicking of hair cells' K+ flow induced by a 1 kHz sound modulated the circulation current and affected the strial ion transport mechanisms; the latter effect resulted in monotonically decreasing potential and increasing [K+ ] in the extracellular strial compartment. Similar results were obtained when the stria in acoustically stimulated animals was examined using microelectrodes detecting the potential and [K+ ]. Measured potential dynamics mirrored the EK change. Collectively, because stria vascularis is electrically coupled to hair cells by the circulation current in vivo too, the strial electrochemical properties respond to sounds. KEY POINTS: A highly positive potential of +80 mV in K+ -enriched endolymph in the mammalian cochlea accelerates sound-induced K+ entry into excitable sensory hair cells, a process that triggers hearing. This unique endolymphatic potential represents an EK -based battery for a non-excitable epithelial-like tissue, the stria vascularis. To examine whether and how the stria vascularis responds to sounds, we used our computational model, in which strial channels and transporters are serially connected to those hair cells in a closed-loop circuit, and found that mimicking hair cell excitation by acoustic stimuli resulted in increased extracellular [K+ ] and decreased the battery's potential within the stria. This observation was overall verified by electrophysiological experiments using live guinea pigs. The sensitivity of electrochemical properties of the stria to sounds indicates that this tissue is electrically coupled to hair cells by a radial ionic flow called a circulation current.
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Affiliation(s)
- Qi Zhang
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Molecular Physiology, Niigata University Graduate School of Medical and Dental Sciences, Asahimachi-dori, Niigata, Japan.,Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Asahimachi-dori, Niigata, Japan
| | - Takeru Ota
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Takamasa Yoshida
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Maidashi, Fukuoka, Japan
| | - Daisuke Ino
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Mitsuo P Sato
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Katsumi Doi
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Arata Horii
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Asahimachi-dori, Niigata, Japan
| | - Fumiaki Nin
- Department of Physiology, Division of Biological Principles, Graduate School of Medicine, Gifu University, Yanagido, Gifu, Japan
| | - Hiroshi Hibino
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,AMED, AMED-CREST, Osaka, Japan
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15
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Zhao Y, Wu L, Lu Q, Gao X, Zhu X, Yao X, Li L, Li W, Ding Y, Song Z, Liu L, Dang N, Zhang C, Liu X, Gu J, Wang J, Geng S, Liu Q, Guo Y, Dong L, Su H, Bai L, O'Malley JT, Luo J, Laws E, Mannent L, Ruddy M, Amin N, Bansal A, Ota T, Wang M, Zhang J. The efficacy and safety of dupilumab in Chinese patients with moderate-to-severe atopic dermatitis: a randomized, double-blind, placebo-controlled study. Br J Dermatol 2021; 186:633-641. [PMID: 34358343 PMCID: PMC9298048 DOI: 10.1111/bjd.20690] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Dupilumab is an antibody against interleukin 4 receptor α, used in treating atopic dermatitis (AD). OBJECTIVES To evaluate the efficacy and safety of dupilumab in adult Chinese patients with moderate-to-severe AD. METHODS In this randomized, double-blind, placebo-controlled, parallel-group, phase III study, conducted between December 2018 and February 2020, patients with AD received dupilumab (300mg) or placebo once every 2 weeks for 16 weeks, and were followed up for 12 weeks. The primary efficacy endpoint was the proportion of patients with both Investigator's Global Assessment (IGA) score of 0-1 and a reduction from baseline of ≥2 points at week 16. RESULTS Overall, 165 patients (mean age: 30.6 years; 71.5% male) were randomized: 82 to dupilumab and 83 to placebo. At week 16, 26.8% of patients in the dupilumab group and 4.8% of patients in the placebo group achieved the primary endpoint (difference, 22.0%; 95% confidence interval [CI], 11.37-32.65%; p<0.0001). Compared with placebo, higher proportions of patients in the dupilumab group achieved ≥75% reduction in the Eczema Area and Severity Index score (57.3% vs 14.5%; difference, 42.9%; 95% CI, 29.75-55.97%; p<0.0001) and had ≥3-point (52.4% vs 9.6%; difference, 42.8%; 95% CI, 30.26-55.34%; p<0.0001) and ≥4-point (39.0% vs 4.8%; difference, 34.2%; 95% CI, 22.69-45.72%; p<0.0001) reductions in weekly average daily peak daily pruritus numerical rating scale scores. The incidence of TEAEs during the treatment period was similar in the two groups. The incidence of conjunctivitis, allergic conjunctivitis, and injection site reaction was higher in the dupilumab group than in the placebo group. CONCLUSIONS In adult Chinese patients, dupilumab was effective in improving the signs and symptoms of AD and demonstrated a favorable safety profile.
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Affiliation(s)
- Y Zhao
- Peking University People's Hospital, Beijing, China
| | - L Wu
- Hangzhou First People's Hospital, Hangzhou, China
| | - Q Lu
- The Second Xiangya Hospital of Central South University, Changsha, China
| | - X Gao
- The First Hospital of China Medical University, Shenyang, China
| | - X Zhu
- Wuxi Second People's Hospital, Jiangsu, China
| | - X Yao
- Hospital for skin diseases, Institute of Dermatology, Chinese Academy of medical sciences, Nanjing, China
| | - L Li
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - W Li
- Huashan Hospital, Fudan University, Shanghai, China
| | - Y Ding
- Shanghai Skin Disease Hospital, Shanghai, China
| | - Z Song
- The Southwest Hospital of AMU, Chongqing, China
| | - L Liu
- Peking University First Hospital, Beijing, China
| | - N Dang
- Jinan Central Hospital, Jinan, China
| | - C Zhang
- Peking University Third Hospital, Beijing, China
| | - X Liu
- University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - J Gu
- Changhai Hospital of Shanghai, Shanghai, China
| | - J Wang
- Ningbo No.2 Hospital, Ningbo, China
| | - S Geng
- The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q Liu
- Tianjin Medical University General Hospital, Tianjin, China
| | - Y Guo
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Dong
- Research & Development, Sanofi, Shanghai, China
| | - H Su
- Research & Development, Sanofi, Shanghai, China
| | - L Bai
- Research & Development, Sanofi, Shanghai, China
| | | | - J Luo
- Research & Development, Sanofi, Indianapolis, USA
| | - E Laws
- Research & Development, Sanofi, Bridgewater, USA
| | - L Mannent
- Research & Development, Sanofi, Paris, France
| | - M Ruddy
- Research & Development, Regeneron, New York, USA
| | - N Amin
- Research & Development, Regeneron, New York, USA
| | - A Bansal
- Research & Development, Regeneron, New York, USA
| | - T Ota
- Research & Development, Regeneron, New York, USA
| | - M Wang
- Medical, Sanofi China, Shanghai, China
| | - J Zhang
- Peking University People's Hospital, Beijing, China
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16
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Choi S, Ota T, Nin F, Shioda T, Suzuki T, Hibino H. Rapid optical tomographic vibrometry using a swept multi-gigahertz comb. Opt Express 2021; 29:16749-16768. [PMID: 34154231 DOI: 10.1364/oe.425972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/10/2021] [Indexed: 06/13/2023]
Abstract
We propose a rapid tomographic vibrometer technique using an optical comb to measure internal vibrations, transient phenomena, and tomographic distributions in biological tissue and microelectromechanical system devices at high frequencies. This method allows phase-sensitive tomographic measurement in the depth direction at a multi-MHz scan rate using a frequency-modulated broadband electrooptic multi-GHz supercontinuum comb. The frequency spacing was swept instantaneously in time and axisymmetrically about the center wavelength via a dual-drive Mach-Zehnder modulator driven by a variable radio frequency signal. This unique sweeping method permits direct measurement of fringe-free interferometric amplitude and phase with arbitrarily changeable measurement range and scan rate. Therefore, a compressive measurement can be made in only the depth region where the vibration exists, reducing the number of measurement points. In a proof-of-principle experiment, the interferometric amplitude and phase were investigated for in-phase and quadrature phase-shifted interferograms obtained by a polarization demodulator. Tomographic transient displacement measurements were performed using a 0.12 mm thick glass film and piezo-electric transducer oscillating at 10-100 kHz with scan rates in the range 1-20 MHz. The depth resolution and precision of the vibrometer were estimated to be approximately 25 µm and 1.0 nm, respectively.
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17
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Sawamura S, Ogata G, Asai K, Razvina O, Ota T, Zhang Q, Madhurantakam S, Akiyama K, Ino D, Kanzaki S, Saiki T, Matsumoto Y, Moriyama M, Saijo Y, Horii A, Einaga Y, Hibino H. Analysis of Pharmacokinetics in the Cochlea of the Inner Ear. Front Pharmacol 2021; 12:633505. [PMID: 34012393 PMCID: PMC8128070 DOI: 10.3389/fphar.2021.633505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/16/2021] [Indexed: 11/14/2022] Open
Abstract
Hearing loss affects >5% of the global population and therefore, has a great social and clinical impact. Sensorineural hearing loss, which can be caused by different factors, such as acoustic trauma, aging, and administration of certain classes of drugs, stems primarily from a dysfunction of the cochlea in the inner ear. Few therapeutic strategies against sensorineural hearing loss are available. To develop effective treatments for this disease, it is crucial to precisely determine the behavior of ototoxic and therapeutic agents in the microenvironment of the cochlea in live animals. Since the 1980s, a number of studies have addressed this issue by different methodologies. However, there is much less information on pharmacokinetics in the cochlea than that in other organs; the delay in ontological pharmacology is likely due to technical difficulties with accessing the cochlea, a tiny organ that is encased with a bony wall and has a fine and complicated internal structure. In this review, we not only summarize the observations and insights obtained in classic and recent studies on pharmacokinetics in the cochlea but also describe relevant analytical techniques, with their strengths, limitations, and prospects.
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Affiliation(s)
- Seishiro Sawamura
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Genki Ogata
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Kai Asai
- Department of Chemistry, Keio University, Yokohama, Japan
| | - Olga Razvina
- Department of Molecular Physiology, Niigata University School of Medicine, Niigata, Japan.,G-MedEx Office, Niigata University School of Medicine, Niigata, Japan
| | - Takeru Ota
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Qi Zhang
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan.,Department of Molecular Physiology, Niigata University School of Medicine, Niigata, Japan.,Department of Otolaryngology, Head and Neck Surgery Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Sasya Madhurantakam
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Koei Akiyama
- Department of Molecular Physiology, Niigata University School of Medicine, Niigata, Japan
| | - Daisuke Ino
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Sho Kanzaki
- Department of Otolaryngology, School of Medicine, Keio University, Tokyo, Japan
| | - Takuro Saiki
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yoshifumi Matsumoto
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Masato Moriyama
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yasuo Saijo
- Department of Medical Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Arata Horii
- Department of Otolaryngology, Head and Neck Surgery Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yasuaki Einaga
- Department of Chemistry, Keio University, Yokohama, Japan
| | - Hiroshi Hibino
- Division of Glocal Pharmacology, Department of Pharmacology, Graduate School of Medicine, Osaka University, Osaka, Japan.,AMED-CREST, AMED, Osaka, Japan
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18
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Bole I, Rodgers D, Smith B, Nguyen A, Chung B, Kalantari S, Sarswat N, Kim G, Song T, Ota T, Jeevanandam V, Kruse E, Kordeck C, Kramer C, Pinney S, Grinstein J. Simultaneous Multi-Vascular Bed Imaging in a Patient Supported by a Continuous-Flow LVAD. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.2115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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19
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Miller T, Belkin M, Siddiqi U, Rodgers D, Kanelidis A, Uriel N, Song T, Ota T, Kalantari S, Sarswat N, Nguyen A, Chung B, Kim G, Smith B, Jeevanandam V, Pinney S, Grinstein J. Cardiac Power Output and Cardiac Power Efficiency Show Prognostic Value in LVAD Patients. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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20
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Belkin M, Shah A, Nathan S, Kalathiya R, Song T, Ota T, Jeevanandam V, Nguyen A, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Grinstein J. Performing under Pressure: Invasive Hemodynamics to Diagnose and Guide Treatment of LVAD Outflow Graft Stenosis. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.2116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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21
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Kanelidis A, Miller T, Belkin M, Siddiqi U, Rogers D, Uriel N, Song T, Ota T, Kalantari S, Sarswat N, Nguyen A, Chung B, Kim G, Smith B, Jeevanandam V, Pinney S, Grinstein J. Low Left Ventricular Stroke Work Index is Associated with a Poor Prognosis in LVAD Patients. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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22
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Belkin M, Imamura T, Kanelidis A, Henry M, Fujino T, Kagan V, Meehan K, Okray J, Creighton S, LaBuhn C, Song T, Ota T, Jeevanandam V, Nguyen A, Chung B, Smith B, Kalantari S, Grinstein J, Sarswat N, Pinney S, Sayer G, Kim G, Uriel N. Postoperative Tolvaptan Use in Left Ventricular Assist Device Implantation Patients: The TOLVAD Study. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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23
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Rodgers D, Raikarr C, Kruse E, Combs P, Mazurski J, Cruz J, Lupo S, Hu K, Smith B, Nguyen A, Chung B, Kalantari S, Sarswat N, Kim G, Grinstein J, Uriel N, Labuhn C, Onsager D, Song T, Hibino N, Ota T, Pinney S, Jeevanandam V. A Signal in the Noise: Noninvasive Acoustical Evaluation of Continuous Flow Left Ventricular Assist Device. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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24
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Nishida H, Song T, Onsager D, Combs P, Nguyen A, Grinstein J, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Jeevanandam V, Ota T. Comparing Short/Long-Term Outcomes of Heart Transplants That Occur Inside and Outside of Normal Working Hours. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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25
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Goldenberg J, Rogers D, Kagan V, Meehan K, Okray J, Creighton S, LaBuhn C, Song T, Ota T, Jeevanandam V, Nguyen A, Chung B, Smith B, Kalantari S, Grinstein J, Sarswat N, Pinney S, Kim G. Characteristics of LVAD Turn-Down Study to Predict Myocardial Recovery and Successful LVAD Decommissioning. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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26
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Bole I, Rodgers D, Smith B, Nguyen A, Chung B, Kalantari S, Sarswat N, Kim G, Song T, Ota T, Jeevanandam V, Pinney S, Grinstein J. Estimated versus Actual Oxygen Consumption in Patients Supported with LVADs. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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27
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Ichimura Y, Hachiya M, Ota T, Pathammavong C, Phounphenghak K, Xeuatvongsa A, Miyano S. Affecting factors on vaccination status among children aged between 12 and 35 months: Nationwide population-based cross-sectional study in Lao PDR, 2019. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.1346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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28
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Kawaguchi K, Manaka D, Konishi S, Ota T, Ikeda Y, Kudo R, An H, Sasaki N, Hamasu S, Nishitai R, Mori Y, Inamoto N, Shibamoto K, Ogata A, Yamaoka T, Himoto Y. P-145 CT-based texture analysis using radiomics for hepatic sinusoidal obstruction syndrome (HSOS) in colorectal cancer patients treated with oxaliplatin containing chemotherapy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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29
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Konishi S, Manaka D, Kawaguchi K, Ota T, Ikeda Y, Kudo R, An H, Sasaki N, Hamasu S, Nishitai R, Mori Y, Inamoto N, Shibamoto K, Ogata A, Yamaoka T, Himoto Y. SO-15 Radiomic signature for prediction of peritoneal disseminations in gastric cancer which were not detected by routine CT examinations. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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30
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Isozaki A, Nakagawa Y, Loo MH, Shibata Y, Tanaka N, Setyaningrum DL, Park JW, Shirasaki Y, Mikami H, Huang D, Tsoi H, Riche CT, Ota T, Miwa H, Kanda Y, Ito T, Yamada K, Iwata O, Suzuki K, Ohnuki S, Ohya Y, Kato Y, Hasunuma T, Matsusaka S, Yamagishi M, Yazawa M, Uemura S, Nagasawa K, Watarai H, Di Carlo D, Goda K. Sequentially addressable dielectrophoretic array for high-throughput sorting of large-volume biological compartments. Sci Adv 2020; 6:eaba6712. [PMID: 32524002 PMCID: PMC7259936 DOI: 10.1126/sciadv.aba6712] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/25/2020] [Indexed: 05/27/2023]
Abstract
Droplet microfluidics has become a powerful tool in precision medicine, green biotechnology, and cell therapy for single-cell analysis and selection by virtue of its ability to effectively confine cells. However, there remains a fundamental trade-off between droplet volume and sorting throughput, limiting the advantages of droplet microfluidics to small droplets (<10 pl) that are incompatible with long-term maintenance and growth of most cells. We present a sequentially addressable dielectrophoretic array (SADA) sorter to overcome this problem. The SADA sorter uses an on-chip array of electrodes activated and deactivated in a sequence synchronized to the speed and position of a passing target droplet to deliver an accumulated dielectrophoretic force and gently pull it in the direction of sorting in a high-speed flow. We use it to demonstrate large-droplet sorting with ~20-fold higher throughputs than conventional techniques and apply it to long-term single-cell analysis of Saccharomyces cerevisiae based on their growth rate.
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Affiliation(s)
- A. Isozaki
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Kanagawa Institute of Industrial Science and Technology, 3-2-1 Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa 213-0012, Japan
| | - Y. Nakagawa
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - M. H. Loo
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Y. Shibata
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - N. Tanaka
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - D. L. Setyaningrum
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - J.-W. Park
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Y. Shirasaki
- Department of Biological Sciences, Graduate School of Science, University of Tokyo, Faculty of Science Building 1 (East), Room 575, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - H. Mikami
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - D. Huang
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - H. Tsoi
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - C. T. Riche
- Department of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5121E Engineering V, Los Angeles, CA 90095, USA
| | - T. Ota
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - H. Miwa
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Y. Kanda
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - T. Ito
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
| | - K. Yamada
- R&D Department, euglena Co., Ltd., 75-1, Ono-machi, Tsurumi-ku, Yokohama-shi 230-0046, Japan
| | - O. Iwata
- R&D Department, euglena Co., Ltd., 75-1, Ono-machi, Tsurumi-ku, Yokohama-shi 230-0046, Japan
| | - K. Suzuki
- R&D Department, euglena Co., Ltd., 75-1, Ono-machi, Tsurumi-ku, Yokohama-shi 230-0046, Japan
| | - S. Ohnuki
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
| | - Y. Ohya
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562, Japan
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL), National Institute of Advanced Industrial Science and Technology (AIST), 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8589, Japan
| | - Y. Kato
- Graduate School of Science, Technology Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - T. Hasunuma
- Graduate School of Science, Technology Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
- Engineering Biology Research Center, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - S. Matsusaka
- Clinical Research and Regional Innovation, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - M. Yamagishi
- Department of Biological Sciences, Graduate School of Science, University of Tokyo, Faculty of Science Building 1 (East), Room 575, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - M. Yazawa
- Department of Rehabilitation and Regenerative Medicine, Pharmacology, Columbia University, 650 West 168th Street, BB1108, New York, NY 10032, USA
| | - S. Uemura
- Department of Biological Sciences, Graduate School of Science, University of Tokyo, Faculty of Science Building 1 (East), Room 575, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - K. Nagasawa
- Division of Stem Cell Cellomics, Institute of Medical Science, University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - H. Watarai
- Division of Stem Cell Cellomics, Institute of Medical Science, University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
- Department of Immunology and Stem Cell Biology, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8640, Japan
| | - D. Di Carlo
- Department of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5121E Engineering V, Los Angeles, CA 90095, USA
| | - K. Goda
- Department of Chemistry, Graduate School of Science, University of Tokyo, East Chemistry Building, Room 213, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Bioengineering, Samueli School of Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5121E Engineering V, Los Angeles, CA 90095, USA
- Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
- Institute of Technological Sciences, Wuhan University, Hubei 430072, China
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31
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Ota T, Nin F, Choi S, Muramatsu S, Sawamura S, Ogata G, Sato MP, Doi K, Doi K, Tsuji T, Kawano S, Reichenbach T, Hibino H. Characterisation of the static offset in the travelling wave in the cochlear basal turn. Pflugers Arch 2020; 472:625-635. [PMID: 32318797 PMCID: PMC7239825 DOI: 10.1007/s00424-020-02373-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/18/2020] [Accepted: 03/23/2020] [Indexed: 02/07/2023]
Abstract
In mammals, audition is triggered by travelling waves that are evoked by acoustic stimuli in the cochlear partition, a structure containing sensory hair cells and a basilar membrane. When the cochlea is stimulated by a pure tone of low frequency, a static offset occurs in the vibration in the apical turn. In the high-frequency region at the cochlear base, multi-tone stimuli induce a quadratic distortion product in the vibrations that suggests the presence of an offset. However, vibrations below 100 Hz, including a static offset, have not been directly measured there. We therefore constructed an interferometer for detecting motion at low frequencies including 0 Hz. We applied the interferometer to record vibrations from the cochlear base of guinea pigs in response to pure tones. When the animals were exposed to sound at an intensity of 70 dB or higher, we recorded a static offset of the sinusoidally vibrating cochlear partition by more than 1 nm towards the scala vestibuli. The offset’s magnitude grew monotonically as the stimuli intensified. When stimulus frequency was varied, the response peaked around the best frequency, the frequency that maximised the vibration amplitude at threshold sound pressure. These characteristics are consistent with those found in the low-frequency region and are therefore likely common across the cochlea. The offset diminished markedly when the somatic motility of mechanosensitive outer hair cells, the force-generating machinery that amplifies the sinusoidal vibrations, was pharmacologically blocked. Therefore, the partition offset appears to be linked to the electromotile contraction of outer hair cells.
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Affiliation(s)
- Takeru Ota
- Department of Molecular Physiology, Niigata University School of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata, 951-8510, Japan
| | - Fumiaki Nin
- Department of Molecular Physiology, Niigata University School of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata, 951-8510, Japan.
| | - Samuel Choi
- AMED-CREST, AMED, Niigata, 951-8510, Japan.,Department of Electrical and Electronics Engineering, Niigata University, Niigata, 950-2181, Japan
| | - Shogo Muramatsu
- Department of Electrical and Electronics Engineering, Niigata University, Niigata, 950-2181, Japan
| | - Seishiro Sawamura
- Department of Molecular Physiology, Niigata University School of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata, 951-8510, Japan
| | - Genki Ogata
- Department of Molecular Physiology, Niigata University School of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata, 951-8510, Japan
| | - Mitsuo P Sato
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, 589-8511, Japan
| | - Katsumi Doi
- Department of Otolaryngology, Kindai University Faculty of Medicine, Osaka, 589-8511, Japan
| | - Kentaro Doi
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Osaka, 560-8531, Japan
| | - Tetsuro Tsuji
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Osaka, 560-8531, Japan.,Department of Advanced Mathematical Sciences, Graduate School of Informatics, Kyoto University, Kyoto, 606-8501, Japan
| | - Satoyuki Kawano
- AMED-CREST, AMED, Niigata, 951-8510, Japan.,Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Osaka, 560-8531, Japan
| | - Tobias Reichenbach
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Hiroshi Hibino
- Department of Molecular Physiology, Niigata University School of Medicine, 1-757 Asahimachi-dori, Chuo-ku, Niigata, 951-8510, Japan. .,AMED-CREST, AMED, Niigata, 951-8510, Japan.
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Mehta N, Fujino T, Dela Cruz M, Holzhauser L, Rodgers D, Kalantari S, Smith B, Sarswat N, Nguyen A, Chung B, Uriel N, Raikhelkar J, Sayer G, Ota T, Song T, Jeevanandam V, Kim G, Grinstein J. Absence of Aortic Valve Opening after Hemodynamic Ramp Optimization Study Does Not Impact LVAD Morbidity of Mortality. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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LaBuhn C, Kagan V, Meehan K, Creighton S, Okray J, Chinco A, Ota T, Song T, Onsager D, Kim G, Kalantari S, Smith B, Sarswat N, Chung B, Grinstein J, Nyugen A, Rodgers D, Jeevanandam V. Prophylactic Use for Driveline Infections: Can we Prevent Infection Resulting from Trauma? J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Koda Y, Nishida H, Jeevanandam V, Ota T. Safety and Efficacy of Single Dose Del Nido Cardioplegia Solution in Left Ventricular Assist Device Implantation- A Propensity Matched Study. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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35
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Koda Y, Nishida H, Kagan V, Meehan K, Okray J, Creighton S, Labuhn C, Nguyen A, Kalantari S, Chung B, Kim G, Sarswat N, Smith B, Grinstein J, Onsager D, Song T, Jeevanandam V, Ota T. Clinical Outcomes of Left Ventricular Assist Device Implantation for Patients Refusing Blood Transfusion. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Jeevanandam V, Ota T, Uriel N, Onsager D, Song T, LaBuhn C, Patel-Raman S, Woolley J, Cogswell R, Milano C. A Clinical Study to Evaluate Ambulatory Counterpulsation for the Treatment of Advanced Heart Failure: A Feasibility Study. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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37
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Mehta N, Fujino T, Belkin M, DelaCruz M, Yu D, Holzhauser L, Rodgers D, Smith B, Kalantari S, Sarswat N, Chung B, Nguyen A, Uriel N, Raikhelkar J, Sayer G, Song T, Ota T, Jeevanandam V, Kim G, Grinstein J. Prognostication of Residual Mitral Regurgitation or Aortic Insufficiency after Invasive Hemodynamic Ramp Optimization. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Meehan K, LaBuhn C, Kagan V, Okray J, Creighton S, Chinco A, Ota T, Song T, Kim G, Combs P, Jeevanandam V. Creating Global Care: An International Shared Care Experience. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Imamura T, Nitta D, Fujino T, Nguyen A, Narang N, Chung B, Holzhauser L, Kim G, Raikhelkar J, Rodgers D, Ota T, Jeevanandam V, Burkhoff D, Sayer G, Uriel N. Optimal Cannula Positioning of Heart Mate 3 Left Ventricular Assist Device. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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40
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Ota T, Murakami Y, Kozuka Y, Ohshiro C, Kihara N, Gunji Y, Hattori S, Noguchi K. P224 Valvuloplasty treatment and three-dimensional analysis for isolated cleft of the anterior mitral valve leaflet: a case report. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction: Isolated cleft of the anterior mitral valve leaflet is a very rare congenital disease and a cause of mitral regurgitation
not associated with atrioventricular septal defect. In this case, we report our experience in valvuloplasty treatment for mitral regurgitation with this rare aetiology.
Case description
23-year-old Russian women. Although cardiac murmur was pointed out in her childhood and she was diagnosed as mitral regurgitation, she refused treatment. After getting married with a Japanese man and moving to Japan, her symptoms had worsened and she visited our hospital for treatment. Preoperative transthoracic echocardiography (TTE) had indicated the regurgitation from the central part of the mitral valve. Preoperative transoesophageal echocardiography (TOE) had pointed out the isolated cleft of the anterior mitral valve.
Surgical mitral valvuloplasty was scheduled, and the TOE after anaesthetic induction showed the isolated cleft of the anterior mitral valve the same as in the preoperative period and pointed out the posterior leaflet billowing. The operative finding was also similar to TOE: the largely bisected central anterior mitral valve and billowing, P2 billowing, shortening of P1 and P3, P2-3 cleft. There were no chords at the anterior cleft. The valvuloplasty was performed including five-time pump runs in total: 1) Continuous suture for the anterior cleft and ring annuloplasty were performed, and the regurgitation was seemed to be almost controlled at the water-leak test and the ink test; 2) Artificial chordae and leaflet plications were added to residual regurgitation from the posterior region; 3)The residual regurgitation was controlled to Mild but it became a lateral jet toward the ring; 4)Mild remnant flow was pointed out: the regurgitation seemed to be from the posterior cleft, where immediately below the ring suture; 5) Pericardium patch was added and the remnant flow was almost eliminated. The pump was weaned and the operation was finished without any problems.
Discussion
The cause of difficulty in this valvuloplasty was thought to be caused by the difficulty in evaluating the mitral valve morphology. It was evident that the anterior leaflet of the mitral valve was largely bisected. However, it was difficult to evaluate the coaptation line and area due to the absence of chordal cords in the anterior cleft and the billowing or shortening of the posterior leaflet. Although preoperative three-dimensional analysis helped evaluating the isolated cleft and the regurgitation was almost controlled in the evaluation in the operation field, nevertheless, a residual regurgitation occurred and indicated in the TOE after re-beating.
Conclusion
It is important and necessary to use fine evaluation of coaptation is needed in valvuloplasty for isolated cleft of the anterior mitral valve leaflet; not only apply three-dimensional analysis but also apply two-dimensional echocardiogram.
Abstract P224 Figure.
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Affiliation(s)
- T Ota
- Shonan Kamakura General Hospital, Anesthesiology, Kamakura, Japan
| | - Y Murakami
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Kozuka
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - C Ohshiro
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - N Kihara
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Gunji
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - S Hattori
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - K Noguchi
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
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Ota T, Murakami Y, Kozuka Y, Ohshiro C, Kihara N, Takagi Y. P662 Synchrony between the right and left heart systems is recovered after TAVI in patients with severe aortic stenosis. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Young Investigator Grant of Japanese Society of Cardiovascular Anesthesia
Background / Introduction
Evidences have shown that cardiac function decline and systolic phase change are caused by massive afterload of the stenosed aortic valve in patients with severe aortic valve stenosis. As a result of the reduction of the left ventricular afterload by valve replacement, the cardiac function recovers. However, it has not been clarified yet how the changes in cardiac function affect the relationship between the right and left heart systems, as well as the systole phase.
TAPSE and MAPSE are known as indices of simple cardiac function evaluation by measuring the movement distance of the atrioventricular annulus. We obtained these indices (i.e. TAPSE, MAPSE) within the same heartbeat using speckle tracking analysis of the atrioventricular annulus and evaluated the changes in cardiac function and phase between the right and left heart systems.
Purpose
To reveal the relationship of cardiac function and time phase between the right and left heart systems by evaluating the maximum movement distance and time of the atrioventricular annulus within the same heartbeat and the same view in patients with severe aortic valve stenosis before and after TAVI.
Methods
A prospective cohort study was conducted. We recruited and analyzed 44 patients with severe aortic valve stenosis who received TAVI treatment, able to record baseline before treatment and follow-up 6 months and 12 months after treatment at our hospital from March 2017 to May 2019. Patients were excluded if more than 2 degree of atrioventricular valve regurgitation or incomplete data. The apical four-chamber view was used for speckle tracking analysis with the origin of the apical extension and region of interest (ROI) of the mitral annulus and tricuspid annulus. For each patient before treatment, at 6 months and 12 months after treatment, the maximum contraction distance (DM), maximum contraction time (TM) of the mitral valve annulus, maximum contraction distance (DT) and maximum contraction time (TT) of the tricuspid annulus were measured. Maximum contraction distance ratio (DM/ DT) and maximum contraction time ratio (TM/ TT) were calculated. For statistical analysis, t-test and ANOVA were used, and a significance threshold of p <0.05 was applied.
Results
TM/ TT decreased at 12 months after TAVI, and DM/ DT increased significantly at 6 months and 12 months after TAVI when compared to baseline before treatment.
Conclusions
In patients with severe aortic valve stenosis, the correction of cardiac function difference between the right and left heart systems occurs from 6 months after TAVI. Moreover, the correction of contraction phase difference between the right and left heart systems at 12 months after TAVI. Thus, the synchrony between the right and left heart system is recovered 12 months after TAVI.
Abstract P662 Figure.
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Affiliation(s)
- T Ota
- Shonan Kamakura General Hospital, Anesthesiology, Kamakura, Japan
| | - Y Murakami
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Kozuka
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - C Ohshiro
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - N Kihara
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Takagi
- Shonan Kamakura General Hospital, Anesthesiology, Kamakura, Japan
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Yamakita K, Kitano Y, Suzuki Y, Iwamoto H, Takahashi K, Ota T. Economic and safety evaluation of 5-HT3 recepter antagonist conversion from palonosetron to granisetron in highly and moderately emetogenic chemotherapy: A prospective study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz434.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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43
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Ota H, Narisawa E, Chiba H, Nakayama H, Tsukumo Y, Sakamoto A, Honma N, Ota T. EP1.01-89 Retroperitoneal Metastasis with Marked Fibrosis from Lung Adenocarcinoma: An Autopsy Case Report. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Ota T, Fukui T, Nakahara Y, Takeda T, Uchino J, Mouri T, Kudo K, Nakajima S, Suzumura T, Okabe T, Hayashi H, Miyatake N, Nakano Y, Terashima M, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. P1.04-40 Serum Perforin Levels During the First Cycle of Anti-PD-1 Antibody Therapies in Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Ballotta AB, Kandil H, Montgomery DG, Ranucci M, Trimarchi S, Myrmel T, Bavaria JE, Sundt TM, Bossone E, Suzuki T, Ota T, Nienaber CA, Isselbacher EM, Eagle KA, Patel HJ. P5608Acute respiratory failure after type A aortic dissection repair: data from the International Registry of Aortic Dissection (IRAD). Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Acute Respiratory Failure (ARF) has been noted in up to 20% of patients undergoing cardiac surgery and is associated with increased mortality. Cardiopulmonary bypass (CPB) is often followed by pulmonary dysfunction, although literature on the subject in the setting of Type A acute aortic dissection (TAAAD) is limited.
Methods
This study identified the incidence of ARF after TAAAD, associated risk factors, and the impact of ARF on early and late outcomes. All data have been derived from the International Registry of Acute Aortic Dissection (IRAD).
Results
Postoperative ARF (defined as ventilator support for ≥3 days, tracheostomy, and/or pneumonia) occurred in 434 (24.6%) of 1764 surgically managed TAAAD patients (mean age 60.1±14.2 years) from November 2001 until November 2017. Peripheral vessel procedures (6.4% v 2.8%, p=0.002), cerebral perfusion (89.2% v 82.3%, p<0.001), use of hypothermic circulatory arrest (93% v 87.7%), longer arrest time (median 39 (Q1-Q3 27–128 minutes) v 31 (Q1-Q3 22.0–52.9 minutes)), and lower extremity ischemia (18.8% v 6.7%, p<0.001) were more common in ARF patients.
On multivariable logistic regression analysis, age ≥70 years (OR 1.019, 95% CI 1.005–1.034, p=0.008), current smoking (OR 1.744, 95% CI 1.184–2.570, p=0.005), peripheral vessel procedures (OR 2.457, 95% CI 1.132–5.334, p=0.023), presenting hypotension/shock (OR 2.036, 95% CI 1.336–3.102, p=0.001), lower extremity ischemia at surgery (OR 2.77, 95% CI 1.574–4.875, p<0.001), concomitant coronary artery bypass graft (CABG) (OR 2.982, 95% CI 1.597–5.568, p=0.001), pre-operative acute renal failure (OR 2.532, 95% CI 1.350–4.749, p=0.004), and prolonged circulatory arrest time in minutes (OR 1.005, 95% CI 1.003–1.007, p<0.001) were independently associated with ARF development. Patients with aortic valve replacement (AVR) were less likely to develop ARF (OR 0.497, 95% CI 0.308–0.802, p=0.004).
Post-operative complications were more common in ARF patients. In-hospital mortality was higher in the ARF cohort (16.4% v 4.7%, p<0.001). Multivariable logistic regression identified ARF (OR 2.686, 95% CI 1.647–4.381, p<0.001) as well as pre-operative hypotension (OR 1.89, 95% CI 1.130–3.159, p=0.015), lower extremity ischemia (OR 2.77, 95% CI 1.545–4.998, p=0.001), pre-operative myocardial infarction (OR 3.141, 95% CI 1.058–9.33, p=0.039), and CABG (OR 1.988, 95% CI 1.011–3.909, p-value 0.047) as independent predictors of death.
Conclusions
Post-operative ARF is common after TAAAD repair; in-hospital complications and death are higher in this cohort.
Acknowledgement/Funding
W.L. Gore & Associates, Inc.; Medtronic; Varbedian Aortic Fund; Hewlett Foundation; Mardigian Foundation; UM Faculty Group Practice; Ann & Bob Aikens
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Affiliation(s)
- A B Ballotta
- IRCCS, Policlinico San Donato, Thoracic Aortic Research Center, San Donato Milanese, Italy
| | - H Kandil
- IRCCS, Policlinico San Donato, Thoracic Aortic Research Center, San Donato Milanese, Italy
| | - D G Montgomery
- University of Michigan, Ann Arbor, United States of America
| | - M Ranucci
- IRCCS, Policlinico San Donato, Thoracic Aortic Research Center, San Donato Milanese, Italy
| | - S Trimarchi
- IRCCS Fondazione Ca Granda Ospedale Maggiore Policlinico, Department of Scienze Biomediche per la Salute, Milan, Italy
| | - T Myrmel
- Tromso University Hospital, Department of Thoracic and Cardiovascular Surgery, Tromso, Norway
| | - J E Bavaria
- University of Pennsylvania, Division of Cardiothoracic Surgery, Philadelphia, United States of America
| | - T M Sundt
- Massachusetts General Hospital, Thoracic Aortic Center, Boston, United States of America
| | - E Bossone
- University of Salerno, Salerno, Italy
| | - T Suzuki
- University of Leicester, Leicester, United Kingdom
| | - T Ota
- University of Chicago Medicine, Center for Aortic Diseases, Chicago, United States of America
| | | | - E M Isselbacher
- Massachusetts General Hospital, Thoracic Aortic Center, Boston, United States of America
| | - K A Eagle
- University of Michigan, Ann Arbor, United States of America
| | - H J Patel
- University of Michigan, Ann Arbor, United States of America
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Hase T, Ota T, Koide Y, Miyamoto M, Satou Y, Takagi Y, Satou K. High flow nasal cannula oxygen therapy prevents hypoxia and hypercapnia even TOE insertion. J Cardiothorac Vasc Anesth 2019. [DOI: 10.1053/j.jvca.2019.07.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Konishi S, Manaka D, Ikeda Y, Ota T, Kudo R, Ann H, Kawaguchi K, Sasaki N, Hamasu S, Nishitai R. Phase II study of neoadjuvant chemotherapy with S-1 plus oxaliplatin at a dose of 130mg/m2 (nacG-SOX130) in clinical(c)Stage III gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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48
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Choi S, Nin F, Ota T, Sato K, Muramatsu S, Hibino H. In vivo tomographic visualization of intracochlear vibration using a supercontinuum multifrequency-swept optical coherence microscope. Biomed Opt Express 2019; 10:3317-3342. [PMID: 31467780 PMCID: PMC6706039 DOI: 10.1364/boe.10.003317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/05/2019] [Accepted: 06/07/2019] [Indexed: 06/10/2023]
Abstract
This study combined a previously developed optical system with two additional key elements: a supercontinuum light source characterized by high output power and an analytical technique that effectively extracts interference signals required for improving the detection limit of vibration amplitude. Our system visualized 3D tomographic images and nanometer scale vibrations in the cochlear sensory epithelium of a live guinea pig. The transverse- and axial-depth resolution was 3.6 and 2.7 µm, respectively. After exposure to acoustic stimuli of 21-25 kHz at a sound pressure level of 70-85 dB, spatial amplitude and phase distributions were quantified on a targeted surface, whose area was 522 × 522 μm2.
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Affiliation(s)
- Samuel Choi
- Niigata University, Department of Electrical and Electronics Engineering, 8050 Ikarashi-2, Niigata 950-2181, Japan
- AMED-CREST, AMED, Japan
| | - Fumiaki Nin
- AMED-CREST, AMED, Japan
- Niigata University, School of Medicine, Department of Molecular Physiology, 757 Ichibancho, Asahimachi, Niigata 951-8510, Japan
- Niigata University, Center for Transdisciplinary Research, 8050 Ikarashi-2, Niigata 950-2181, Japan
| | - Takeru Ota
- AMED-CREST, AMED, Japan
- Niigata University, School of Medicine, Department of Molecular Physiology, 757 Ichibancho, Asahimachi, Niigata 951-8510, Japan
| | - Kouhei Sato
- Niigata University, Department of Electrical and Electronics Engineering, 8050 Ikarashi-2, Niigata 950-2181, Japan
| | - Shogo Muramatsu
- Niigata University, Department of Electrical and Electronics Engineering, 8050 Ikarashi-2, Niigata 950-2181, Japan
- AMED-CREST, AMED, Japan
| | - Hiroshi Hibino
- AMED-CREST, AMED, Japan
- Niigata University, School of Medicine, Department of Molecular Physiology, 757 Ichibancho, Asahimachi, Niigata 951-8510, Japan
- Niigata University, Center for Transdisciplinary Research, 8050 Ikarashi-2, Niigata 950-2181, Japan
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Ann H, Manaka D, Konishi S, Ikeda Y, Ota T, Kudo R, Kawaguchi K, Sasaki N, Hamasu S, Nishitai R. Phase II study in progress to verify improved response with mFOLFOX6 after exposure to an immune checkpoint inhibitor in advanced gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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50
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Kawaguchi K, Manaka D, Konishi S, Ikeda Y, Ota T, Kudo R, Sasaki N, Hamasu S, Nishitai R. Hepatic sinusoidal obstruction syndrome (HSOS) in cStage III gastric cancer patients undergoing neoadjuvant chemotherapy with oxaliplatin: a retrospective cohort study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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