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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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52
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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] [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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Ota T, Nakano Y, Mizuno T, Shiozaki A, Hori Y, Yamanishi K, Hayakawa K, Hayakawa T, Fujimoto T, Nakamoto C, Maejima K, Wada Y, Terasoma F, Ohnishi T. First Case Report of Possible Sarcocystis truncata-induced Food Poisoning in Venison. Intern Med 2019; 58:2727-2730. [PMID: 31118403 PMCID: PMC6794181 DOI: 10.2169/internalmedicine.2817-19] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Along with the increase in consumption of raw animal meat, the prevalence of food poisoning is increasing. A 67-year-old Japanese man had eaten raw venison 4 hours prior to the beginning of vomiting. Many white cysts were discovered in the venison, with numerous bradyzoites being detected after the cysts were punctured. The presence of the Sarcocystis spp. 18S rRNA gene was detected by polymerase chain reaction, and Sarcocystis truncata was isolated from the venison. Sarcocystis truncata has not previously been identified in sika deer (Cervus nippon) in Japan. This is the first report of possible Sarcocystis truncata-induced food poisoning following consumption of venison.
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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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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55
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Bancroft T, DeBuysscher BL, Weidle C, Schwartz A, Wall A, Gray MD, Feng J, Steach HR, Fitzpatrick KS, Gewe MM, Skog PD, Doyle-Cooper C, Ota T, Strong RK, Nemazee D, Pancera M, Stamatatos L, McGuire AT, Taylor JJ. Detection and activation of HIV broadly neutralizing antibody precursor B cells using anti-idiotypes. J Exp Med 2019; 216:2331-2347. [PMID: 31345930 PMCID: PMC6780997 DOI: 10.1084/jem.20190164] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/29/2019] [Accepted: 06/25/2019] [Indexed: 01/01/2023] Open
Abstract
Many tested vaccines fail to provide protection against disease despite the induction of antibodies that bind the pathogen of interest. In light of this, there is much interest in rationally designed subunit vaccines that direct the antibody response to protective epitopes. Here, we produced a panel of anti-idiotype antibodies able to specifically recognize the inferred germline version of the human immunodeficiency virus 1 (HIV-1) broadly neutralizing antibody b12 (iglb12). We determined the crystal structure of two anti-idiotypes in complex with iglb12 and used these anti-idiotypes to identify rare naive human B cells expressing B cell receptors with similarity to iglb12. Immunization with a multimerized version of this anti-idiotype induced the proliferation of transgenic murine B cells expressing the iglb12 heavy chain in vivo, despite the presence of deletion and anergy within this population. Together, our data indicate that anti-idiotypes are a valuable tool for the study and induction of potentially protective antibodies.
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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58
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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59
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Manaka D, Konishi S, Kawaguchi K, Ikeda Y, Ota T, Kudo R, Ann H, Sasaki N, Hamasu S, Nishitai R. Prognostic implications of free cancer cells in gastric juice in gastric cancer patients who underwent surgery: a prospective cohort study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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60
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Hayakawa T, Nakano Y, Hayakawa K, Yoshimatu H, Hori Y, Yamanishi K, Yamanishi H, Ota T, Fujimoto T. Fulminant type 1 diabetes mellitus associated with Coxsackievirus type B1 infection during pregnancy: a case report. J Med Case Rep 2019; 13:186. [PMID: 31215492 PMCID: PMC6582524 DOI: 10.1186/s13256-019-2130-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 05/20/2019] [Indexed: 12/16/2022] Open
Abstract
Background Fulminant type 1 diabetes is characterized by an intrinsic insulin deficiency resulting from the severe destruction of pancreatic β cells and it rapidly leads to ketoacidosis. However, the association between fulminant type 1 diabetes in pregnancy and specific viral infections has not been reported. Case presentation The patient in this study was a 31-year-old Japanese woman, and at 30 weeks of pregnancy she was admitted with marked fatigue. Fetal bradycardia was noted, and the child was delivered by emergency cesarean section but was stillborn. The maternal blood sugar level was high (427 mg/dL), but the glycated hemoglobin value was 6.2%; therefore, fulminant type 1 diabetes was suspected. Serum antibody testing confirmed a Coxsackievirus B1 infection. The patient in this case had fulminant type 1 diabetes in pregnancy associated with Coxsackievirus B1. Conclusion This case highlights that fulminant type 1 diabetes in pregnancy may be associated with Coxsackievirus B1 infection.
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Ota T, Ishikawa T, Hotta Y, Okayama T, Shiozaki A, Fujiwara H, Kishimoto M, Konishi H, Naito Y, Itoh Y. [Long-Term Survival of a Patient with Small Cell Esophageal Carcinoma Who Underwent Multidisciplinary Therapy-ACase Report]. Gan To Kagaku Ryoho 2019; 46:1053-1056. [PMID: 31273174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The patient was a 69-year-old woman.Upper gastrointestinal endoscopy showed a protruding tumor in the mid-thoracic esophagus, and biopsy revealed small cell carcinoma in November 2012. Four courses of neoadjuvant chemotherapy comprising CDDP and CPT-11 were administered, and radical resection was performed in March 2013.I n March 2014, chest computed tomography revealed the recurrence of mediastinal lymph nodes; thus, we administered chemoradiotherapy comprising 5- FU and CDDP, and the size of the recurrent tumors decreased.However, in February 2015, positron emission tomographycomputed tomography revealed liver metastases.Therefore, we switched to a new chemotherapy regimen containing CDDP and VP-16.Although the treatment was very effective and the liver metastases significantly decreased in size, it was discontinued after 9 courses owing to neurotoxicity.Next, 7 courses of chemotherapy comprising amrubicin, which is administered for treating small cell lung carcinoma, were administered, which suppressed tumor growth for approximately 8 months.However, the tumor then re-grew.Chemotherapy comprising S-1 was administered; however, the tumor gradually progressed.The patient died 51 months after the initial treatment.
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Li W, Ota T, Nemazee D. A knock-in mouse to test vaccines for the broadly neutralizing influenza response. THE JOURNAL OF IMMUNOLOGY 2019. [DOI: 10.4049/jimmunol.202.supp.139.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Influenza virus is a major public health burden controlled by vaccination. However, influenza viruses develop mutants at a high frequency. The yearly vaccine elicits a specific response that fails to protect against most influenza strains, and its efficacy and production is risky every flu season. It would be ideal to develop a universal vaccine conferring life-long, broad protection. So far, the academic field has isolated several broadly neutralizing antibodies that target conserved regions of viral proteins from donors. However, how to elicit these antibodies in human through designed vaccines remains challenging and inefficient. Herein we generated humanized BCR mice to facilitate testing of strategies to induce broadly neutralizing antibodies in humans. CR9114 is one of the most broadly neutralizing antibodies known with activity against group 1 and group 2 influenza A and also influenza B virus. Most contacts are with the H-chain only, which uses VH1-69. We knocked in a promoter-germline VDJ element to the physiological Igh locus, allowing analysis of the response of B cells capable in principle of broad neutralization and the testing of vaccine candidates.
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Combs P, Imamura T, Stonebraker C, Bullard H, Simone P, LaBuhn C, Chung B, Ota T, Onsager D, Song T, Lammy T, Kim G, Smith B, Kalantari S, Nguyen A, Raikhelkar J, Sarswat N, Sayer G, Jeevanandam V, Uriel N. Opioid Use in LVAD Patients is Associated with Increased GI Bleed and Sepsis. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Imamura T, Nitta D, Rodgers D, Grinstein J, Kalantari S, Smith B, Raikhelkar J, Kim G, Nguyen A, Narang N, Chung B, Ebong I, Holzhauser L, Fujino T, Juricek C, Combs P, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Estimation of Pulmonary Capillary Wedge Pressure from the HVAD Waveform and Its Prognostic Implications. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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65
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Gonzales E, Sayer G, Kim G, Sarswat N, Smith B, Kalantari S, Raikhelkar J, Stonebraker C, Song T, Ota T, Uriel N, LaBuhn C, Combs P, Onsager D, Jeevanandam V. Is it Possible to Implant and Manage Patients with Durable LVADs Who Refuse Blood Products? J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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66
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Nitta D, Imamura T, Fujino T, Rodgers D, Nguyen A, Holzhauser L, Ebong I, Narang N, Chung B, Song T, Ota T, Juricek C, Jeevanandam V, Raikhelkar J, Kim G, Sayer G, Uriel N. Lower Pulmonary Artery Pulsatility Index after Left Ventricular Assist Device Implantation is Associated with Worse Heart Failure Free Survival. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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67
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Imamura T, Raikhelkar J, Kim G, Smith B, Kalantari S, Nguyen A, Narang N, Chung B, Ebong I, Holzhauser L, Grinstein J, Nitta D, Fujino T, Juricek C, Rodgers D, Combs P, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Aortic Insufficiency is Associated with Hemocompatibility-Related Adverse Events in LVAD Patients. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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68
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Symalla T, Song T, Onsager D, Ota T, LaBuhn C, Combs P, Lammy T, Patel-Raman S, Sayer G, Kim G, Raikhelkar J, Uriel N, Jeevanandam V. Hemodynamic Parameters That Predict Success with an Ambulatory Counterpulsation Heart Assist System in Advanced Congestive Heart Failure. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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69
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Koda Y, Kitahara H, Kim G, Sarswat N, Kalantari S, Smith B, Raikhelkar J, Sayer G, Onsager D, Song T, Uriel N, Jeevanandam V, Ota T. Surgical Device Exchange is Favorable to Treat Device Thrombosis Compared to Medical Therapy. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Imamura T, Smith B, Raikhelkar J, Rodgers D, Kim G, Kalantari S, Nguyen A, Narang N, Chung B, Ebong I, Holzhauser L, Nitta D, Fujino T, Juricek C, Combs P, Onsager D, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Right Heart Function Worsens in LVAD Patients with Decoupling between Pulmonary Artery and Wedge Pressures. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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71
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Imamura T, Nguyen A, Nitta D, Rodgers D, Kalantari S, Smith B, Raikhelkar J, Narang N, Chung B, Ebong I, Holzhauser L, Fujino T, Juricek C, Combs P, Onsager D, Song T, Ota T, Jeevanandam V, Kim G, Sayer G, Uriel N. Worsening of Right Heart Function Following Left Ventricular Assist Device Implantation - Right Heart Catheter Waveform Analyses. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.1166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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72
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Aoki S, Yamashita H, Takahashi W, Nawa K, Ota T, Nozawa Y, Ozaki S, Nakamoto T, Nakagawa K. EP-1360 Salvage SBRT for postoperative recurrence of NSCLC. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31780-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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73
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Ota T, Ishikawa T, Endo Y, Matsumura S, Yoshida J, Yasuda T, Okayama T, Inoue K, Dohi O, Yoshida N, Sakamoto N, Kamada K, Uchiyama K, Takagi T, Konishi H, Konishi H, Shiozaki A, Fujiwara H, Kishimoto M, Naito Y, Itoh Y. Skeletal muscle mass as a predictor of the response to neo-adjuvant chemotherapy in locally advanced esophageal cancer. Med Oncol 2019; 36:15. [PMID: 30600347 DOI: 10.1007/s12032-018-1242-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 12/24/2018] [Indexed: 01/06/2023]
Abstract
Undernutrition and sarcopenia are associated with a higher incidence of chemotherapy-related toxicity and a poor prognosis in several kinds of cancer, but the impact of sarcopenia on the outcomes of chemotherapy for esophageal cancer remains unclear. Thus, the purpose of this retrospective study was to investigate whether sarcopenia affects the efficacy and toxicities of chemotherapy for advanced esophageal cancer patients. Data were collected from 31 esophageal cancer patients who underwent neo-adjuvant chemotherapy followed by surgery. Body composition was assessed at the start of chemotherapy by bioelectrical impedance analysis, and outcomes of chemotherapy were compared between sarcopenic and non-sarcopenic groups. Of the 31 patients, sarcopenia was observed in 16 (51.6%). The incidence of toxicities was not different between the two groups. However, as for pathologic response, a good therapeutic effect (Grade 2 or higher) was more common in the non-sarcopenic group than in the sarcopenic group (53.3% vs. 25.0%). Multivariate analysis showed that sarcopenia was an independent predictor of poor pathological response (odds ratio 8.02; P = 0.037). The results of this study suggest the potential utility of sarcopenia assessment in neoadjuvant patient selection strategies.
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Otsuki H, Ota T, Miki N. Blood-Separating Device Without Energy Source for Implantable Medical Devices. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2018; 2018:4661-4664. [PMID: 30441390 DOI: 10.1109/embc.2018.8513160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Coagulation of blood inside the implanted medical device is quite a critical problem to limit the lifetime. In this paper, we propose a microfluidic blood separating device using curved and branched channels. It utilizes centrifugal force on curved flow and separates blood flow into blood cell rich and blood cell poor ones at the bifurcation. Though it cannot separate the plasma from blood cells completely, the blood with small concentrations of blood cells will have low coagulatibity and extend the lifetime of the implant medical device. The device does not require any external pumps or valves, i.e., the system does not need any power sources but the blood pressure. We conducted experiments with a titanium foil which contacted to human whole blood with different hematocrit values for 7 days. The device was experimentally characterized with respect to the channel design. The former experiments suggested that lower concentration of blood cells helps avoiding blood coagulations, and the latter showed that the separation by our device is mainly affected by the flow rate and channel curvature.
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Kamiya H, Ota T, Yasuga H, Miki N. A Precise Sampling Strip with Microstructures. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2018; 2018:3837-3840. [PMID: 30441201 DOI: 10.1109/embc.2018.8513267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This paper presents a precise sampling microstructure formed as a paper strip. We have been developing dialysis system that can be implanted into a human body as an artificial kidney. For the safe use of our artificial kidney, the patients' urine needs to be constantly monitored to detect the abnormal value of ion concentration essential for human life. We are conceiving the monitoring system based on sampling by a paper strip. In this study, we fabricated the strip consisting of slanted and interlocked micropillars for the sampling, known as synthetic microfluidic paper. The paper-like substrate can be fabricated with a well-controlled geometry and subsequently enables precise sampling. Through the conducted experiments, it was shown that synthetic microfluidic paper had better mechanical properties, showed more precision in sampling than paper filter as well as corresponding liquid holding capability to the paper filter. Our proposed paper-based sampling system is expected to lead to the development of minimally invasive ion monitoring system with quantitative sampling strip.
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Watanabe A, Ota T, Kanno Y, Miki N. Enfold-type connecting system of artificial blood vessels for micro implantable dialysis device. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2018; 2018:5810-5813. [PMID: 30441656 DOI: 10.1109/embc.2018.8513545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This paper reports the connecting mechanism for the artificial blood vessels along with the recent development of the micro implantable dialysis device. Our group has been studying the micro implantable dialysis device, which will drastically improve the quality of life of dialysis patients. We expect to replace the device every couple of years, which will involve surgery. In order to simplify the surgery to reduce the load to the patients, we develop a connector for the artificial vessels, which allows the exchange of the device by low invasive surgery. The connector needs to be designed not to induce blood coagulation. We designed a connecting mechanism that enfolds the artificial vessels to allow blood to contact only to the surface of the artificial vessels. In order to verify effectiveness of the proposed connecting mechanism, we investigated the connector surfaces with SEM after blood circulation tests. Then, we evaluated blood coagulation capacity of the connecting system as well as the set of the connecting system and the micro dialysis device with respect to the activated partial thromboplastin time (APTT). No remarkable increase of blood coagulation at the connecting point was observed after 72 hours of blood circulation tests. Short-term experiments for 120 minutes to evaluate APTT showed a small decrease of APTT, which needs to be further investigated in a longer-term experiments.
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Ota T, Kirita K, Udagawa H, Umemura S, Matsumoto S, Yoh K, Niho S, Ishii G, Goto K. P1.09-33 Validity of Non-Small Cell Lung Cancer Not Otherwise Specified to Use Immunohistochemistry on Treatment Outcome. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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78
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Ota T, Takeda T, Fukui T, Nakahara Y, Kudo K, Okabe T, Hayashi H, Otani S, Hiyoshi Y, Yonesaka K, Sugiura T, Suzumura T, Terashima M, Nakano Y, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. Serum biomarkers during the first cycle of anti-PD-1 antibody therapies in non-small cell lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ota T, Kirita K, Udagawa H, Umemura S, Matsumoto S, Yoh K, Niho S, Goto K. Efficacy of second-line nivolumab after early time to progression on first-line cytotoxic chemotherapy in patients with advanced non-small cell lung cancer (NSCLC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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80
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Taguchi S, Funabiki M, Hayashi T, Tada Y, Iwaki Y, Karita M, Ota T, Maeda K, Matsubara T, Zada P, Sugiyama N, Nakamura Y. The implantation rate of japanese infertile patients with repeated implantation failure can be improved by endometrial receptivity array (era) test: a randomized controlled trial. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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81
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Ariyasu H, Inaba H, Ota T, Yamaoka H, Furukawa Y, Iwakura H, Doi N, Yamamoto Y, Akamizu T. Thyrotoxicosis and Adrenocortical Hormone Deficiency During Immune-checkpoint Inhibitor Treatment for Malignant Melanoma. ACTA ACUST UNITED AC 2018; 32:345-351. [PMID: 29475919 DOI: 10.21873/invivo.11244] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 01/21/2023]
Abstract
BACKGROUND Immune-checkpoint inhibitors (ICIs) are novel promising agents for the treatment of malignant tumors. However, critical endocrine immune-related adverse events (irAEs) by ICIs often occur. CASE REPORT A 63-year-old woman with advanced malignant melanoma had received anti-PD-1 antibody (nivolumab, 2 mg/kg every 3 weeks) for 8 cycles (from day 0 to day 147). On day 168, nivolumab was switched to anti-CTLA-4 antibody (ipilimumab, 3mg/kg every 3 weeks). Twenty-eight days later, she was diagnosed with thyrotoxicosis due to painless thyroiditis (day 196). Thirty-five days later (day 231), thyrotoxicosis turned to hypothyroidism. In addition, twenty-five days later (day 256), she was diagnosed with adrenocortical insufficiency due to adrenocortical hormone (ACTH) deficiency. Hormone replacements with levothyroxine and hydrocortisone were administered. She showed eosinophilia, ESR/CRP/LDH elevation, liver dysfunction and hyponatremia before diagnosis of ACTH insufficiency. Eosinophilia, thrombocytopenia, ESR/CRP/LDH elevation, and liver dysfunction might be important for early detection of thyrotoxicosis in our case. CONCLUSION The present report provides the first detailed presentation of combined thyrotoxicosis and isolated ACTH deficiency induced by ICIs. Since rapidly progressive fatal endocrine system failure may be provoked during ICI therapy, precise diagnosis and prompt treatment as well as close follow-up is critical. We propose routine monitoring of endocrine functions and related symptoms (worsened fatigue, hypoglycemia, hypotension or hyponatremia), as well as other laboratory tests during ICI therapy.
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82
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Manaka D, Nishitai R, Konishi S, Ota T, Nishikawa Y, Kudo R, Kawaguchi K, An H, Hamasu S. Analysis of clinical outcomes of two antiEGFR antibodies, cetuximab and panitumumab, in the 1st line chemotherapy of RAS wild metastatic colorectal cancer, by neutrophil-to-lymphocyte ratio (NLR) kinetics. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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83
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Konishi S, Manaka D, An H, Nishikawa Y, Ota T, Kudo R, Kawaguchi K, Hamasu S, Nishitai R. Early outcomes of a pilot study of neoadjuvant chemotherapy with S-1 plus oxaliplatin at dose of 130mg/m2 (nacG-SOX130) in stage III gastric cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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84
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Kawaguchi K, Nishitai R, Manaka D, Ota T, Nishikawa Y, Kudo R, An H, Hamasu S, Konishi S. A phase II study of dose-escalation of regorafenib for patients with previously treated metastatic colorectal cancer – DEREGULATE study - Trial in progress. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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85
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Imamura T, Murks C, Riley T, Powers J, Chung B, Nguyen A, Rodgers D, Raikhelkar J, Kalantari S, Costanzo M, Jorde U, Ota T, Song T, Onsager D, Juricek C, Jeevanandam V, Kim G, Sayer G, Uriel N. Comparison of Survival and Readmission Rates in Patients 65 and Older Undergoing Heart Transplantation or LVAD Implantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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86
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Jeevanandam V, Onsager D, Song T, Ota T, Juricek LaBuhn C, Lammy T, Patel-Raman S, Sayer G, Kim G, Kalantari S, Uriel N. Hemocompatibility of an Ambulatory Counterpulsation Circulatory Assist System. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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87
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Imamura T, Raikhelkar J, Sarswat N, Rodgers D, Kalantari S, Nguyen A, Chung B, Narang N, Kim G, Juricek C, Murks C, Ota T, Song T, Costanzo M, Burkhoff D, Jorde U, Jeevanandam V, Sayer G, Uriel N. Optimal Hemodynamics During LVAD Support Are Associated With Reduced Readmission Rate. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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88
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Imamura T, Rodgers D, Kim G, Raikhelkar J, Sarswat N, Kalantari S, Nguyen A, Chung B, Juricek C, Burkhoff D, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Estimation of Central Venous Pressure by Pacemaker Lead Impedances in LVAD Patients. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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89
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Imamura T, Juricek C, Song T, Ota T, Onsager D, Bryant B, Sarswat N, Kim G, Raikhelkar J, Kalantari S, Sayer G, Jeevanandam V, Uriel N. Reverse Remodeling Following Ambulatory Counterpulsation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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90
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Imamura T, Rodgers D, Kim G, Raikhelkar J, Sarswat N, Kalantari S, Nguyen A, Chung B, Juricek C, Burkhoff D, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Decoupling Between Diastolic Pulmonary Artery and Pulmonary Capillary Wedge Pressures at Incremental LVAD Speeds is a Poor Prognostic Factor Following LVAD Implantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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91
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Mehta P, Imamura T, Belkin M, Rodgers D, Sarswat N, Kim G, Raikhelkar J, Kalantari S, Murks C, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Neurohormonal Blockade Reduces Adverse Events During LVAD Support. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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92
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Jeevanandam V, Song T, Onsager D, Ota T, Juricek LaBuhn C, Lammy T, Patel-Raman S, Sayer G, Kim G, Kalantari S, Uriel N. Predictors of Hemodynamic Success in Advanced CHF Patients Supported by Ambulatory Counterpulsation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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93
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Imamura T, Raikhelkar J, Sarswat N, Kalantari S, Murks C, Rodgers D, Juricek C, Kim G, Costanzo M, Ota T, Song T, Jeevanandam V, Jorde U, Burkhoff D, Sayer G, Uriel N. Optimal Hemodynamics During LVAD Support Are Associated with Reduced Hemocompatibility-related Adverse Events. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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94
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Imamura T, Rodgers D, Kim G, Raikhelkar J, Sarswat N, Kalantari S, Nguyen A, Chung B, Juricek C, Burkhoff D, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N. Omega-3 Reduces Gastrointestinal Bleeding in Patients With Continuous-flow Left Ventricular Assist Device. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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95
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Nnanabu J, Rodgers D, Sarswat N, Raikhelkar J, Kim G, Kalantari S, Ota T, Song T, Juricek C, Jeevanandam V, Sayer G, Uriel N. Clinical Profile of Patients with Late Stroke after Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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96
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Nguyen A, Imamura T, Chung B, Murks C, Powers J, Riley T, Onsager D, Song T, Ota T, Kalantari S, Raikhelkar J, Sarswat N, Kim G, Costanzo M, Jorde U, Jeevanandam V, Sayer G, Uriel N. High Prevalence of BK Virus in Heart Transplant Patients and Effect on Outcomes. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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97
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Mehta P, Imamura T, Belkin M, Sarswat N, Kim G, Raikhelkar J, Kalantari S, Chung B, Nguyen A, Song T, LaBuhn C, Rodgers D, Ota T, Jeevanandam V, Sayer G, Uriel N. Comparison of Hemocompatibility-Related Adverse Events in HVAD versus HeartMate II Device. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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98
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Nguyen A, Imamura T, Chung B, Narang N, Holzhauser L, LaBuhn C, Rodgers D, Ota T, Song T, Costanzo M, Kalantari S, Sarswat N, Raikhelkar J, Kim G, Jeevanandam V, Sayer G, Uriel N. Changes in Metabolic Profiles Following Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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99
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Abbott RK, Lee JH, Menis S, Skog P, Rossi M, Ota T, Kulp DW, Bhullar D, Kalyuzhniy O, Havenar-Daughton C, Schief WR, Nemazee D, Crotty S. Precursor Frequency and Affinity Determine B Cell Competitive Fitness in Germinal Centers, Tested with Germline-Targeting HIV Vaccine Immunogens. Immunity 2017; 48:133-146.e6. [PMID: 29287996 DOI: 10.1016/j.immuni.2017.11.023] [Citation(s) in RCA: 235] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/12/2017] [Accepted: 11/28/2017] [Indexed: 01/28/2023]
Abstract
How precursor frequencies and antigen affinities impact interclonal B cell competition is a particularly relevant issue for candidate germline-targeting HIV vaccine designs because of the in vivo rarity of naive B cells that recognize broadly neutralizing epitopes. Knowing the frequencies and affinities of HIV-specific VRC01-class naive human B cells, we transferred B cells with germline VRC01 B cell receptors into congenic recipients to elucidate the roles of precursor frequency, antigen affinity, and avidity on B cell responses following immunization. All three factors were interdependently limiting for competitive success of VRC01-class B cells. In physiological high-affinity conditions using a multivalent immunogen, rare VRC01-class B cells successfully competed in germinal centers (GC), underwent extensive somatic hypermutation, and differentiated into memory B cells. The data reveal dominant influences of precursor frequency, affinity, and avidity for interclonal GC competition and indicate that germline-targeting immunogens can overcome these challenges with high-affinity multimeric designs.
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100
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Koyama K, Saida Y, Abe T, Satokata M, Mishina Y, Sato K, Shoji S, Tanaka T, Nozaki K, Ichikawa K, Miyabayashi T, Ota T, Fujimori F, Ito R, Kondo R, Hiura T, Okajima M, Miura S, Watanabe S, Matsumoto N, Tanaka H, Kikuchi T. P2.03-015 Efficacy of EGFR-TKIs for EGFR Mutant NSCLC Patients with Central Nervous System Metastases: A Retrospective Analysis. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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