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Teramoto Y, Uehara S, Masuda M, Adachi I, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Ayad R, Babu V, Behera P, Beleño C, Bennett J, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder TE, Campajola M, Červenkov D, Chang MC, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Cho SJ, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, De Nardo G, Di Capua F, Doležal Z, Dong TV, Eidelman S, Ferber T, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Greenwald D, Hadjivasiliou C, Hara T, Hartbrich O, Hayasaka K, Hayashii H, Hedges MT, Hernandez Villanueva M, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jang EJ, Jia S, Jin Y, Joo CW, Joo KK, Kahn J, Kaliyar AB, Kang KH, Karyan G, Kato Y, Kawasaki T, Kichimi H, Kiesling C, Kim BH, Kim DY, Kim SH, Kim YK, Kimmel TD, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kumar R, Kumara K, Kuzmin A, Kwon YJ, Lalwani K, Lange JS, Lee IS, Lee SC, Lewis P, Li LK, Li YB, Li Gioi L, Libby J, Lieret K, Liptak Z, Liventsev D, Luo T, MacQueen C, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mohanty GB, Mohanty S, Moon TJ, Mori T, Mrvar M, Mussa R, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Natochii A, Nayak M, Nisar NK, Nishida S, Ogawa K, Ogawa S, Ono H, Onuki Y, Pakhlov P, Pakhlova G, Pardi S, Park H, Park SH, Patra S, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Podobnik T, Popov V, Prencipe E, Prim MT, Ritter M, Rostomyan A, Rout N, Russo G, Sahoo D, Sakai Y, Sandilya S, Sangal A, Santelj L, Sanuki T, Savinov V, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Sevior ME, Shapkin M, Shebalin V, Shiu JG, Singh JB, Solovieva E, Starič M, Stottler ZS, Sumihama M, Sumisawa K, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tenchini F, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Waheed E, Wang CH, Wang E, Wang MZ, Wang P, Wang XL, Watanabe M, Won E, Xu X, Yabsley BD, Yang SB, Ye H, Yelton J, Yin JH, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Evidence for X(3872)→J/ψπ^{+}π^{-} Produced in Single-Tag Two-Photon Interactions. PHYSICAL REVIEW LETTERS 2021; 126:122001. [PMID: 33834793 DOI: 10.1103/physrevlett.126.122001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 12/14/2020] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
We report the first evidence for X(3872) production in two-photon interactions by tagging either the electron or the positron in the final state, exploring the highly virtual photon region. The search is performed in e^{+}e^{-}→e^{+}e^{-}J/ψπ^{+}π^{-}, using 825 fb^{-1} of data collected by the Belle detector operated at the KEKB e^{+}e^{-} collider. We observe three X(3872) candidates, where the expected background is 0.11±0.10 events, with a significance of 3.2σ. We obtain an estimated value for Γ[over ˜]_{γγ}B(X(3872)→J/ψπ^{+}π^{-}) assuming the Q^{2} dependence predicted by a cc[over ¯] meson model, where -Q^{2} is the invariant mass squared of the virtual photon. No X(3915)→J/ψπ^{+}π^{-} candidates are found.
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Nagano A, Wakabayashi H, Maeda K, Kokura Y, Miyazaki S, Mori T, Fujiwara D. Respiratory Sarcopenia and Sarcopenic Respiratory Disability: Concepts, Diagnosis, and Treatment. J Nutr Health Aging 2021; 25:507-515. [PMID: 33786569 PMCID: PMC7799157 DOI: 10.1007/s12603-021-1587-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/15/2020] [Indexed: 01/31/2023]
Abstract
The condition of muscle fiber atrophy and weakness that occurs in respiratory muscles along with systemic skeletal muscle with age is known as respiratory sarcopenia. The Japanese Working Group of Respiratory Sarcopenia of the Japanese Association of Rehabilitation Nutrition narratively reviews these areas, and proposes the concept and diagnostic criteria. We have defined respiratory sarcopenia as "whole-body sarcopenia and low respiratory muscle mass followed by low respiratory muscle strength and/or low respiratory function." Respiratory sarcopenia can be caused by various factors such as aging, decreased activity, undernutrition, disease, cachexia, and iatrogenic causes. We have also created an algorithm for diagnosing respiratory sarcopenia. Respiratory function decreases with age in healthy older people, along with low respiratory muscle mass and strength. We have created a new term, "Presbypnea," meaning a decline in respiratory function with aging. Minor functional respiratory disability due to aging, such as that indicated by a modified Medical Research Council level 1 (troubled by shortness of breath when hurrying or walking straight up hill), is an indicator of presbypnea. We also define sarcopenic respiratory disability as "a disability with deteriorated respiratory function that results from respiratory sarcopenia." Sarcopenic respiratory disability is diagnosed if respiratory sarcopenia is present with functional disability. Cases of respiratory sarcopenia without functional disability are diagnosed as "at risk of sarcopenic respiratory disability." Functional disability is defined as a modified Medical Research Council grade of 2 or more. Rehabilitation nutrition, treatment that combines rehabilitation and nutritional management, may be adequate to prevent and treat respiratory sarcopenia and sarcopenic respiratory disability.
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Mori T, Yoshioka K, Tanno Y, Kasakura S. Intentional Stent Stenosis to Prevent Hyperperfusion Syndrome after Carotid Artery Stenting for Extremely High-Grade Stenosis. AJNR Am J Neuroradiol 2021; 42:132-137. [PMID: 33184067 DOI: 10.3174/ajnr.a6853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/14/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Intracranial hemorrhage due to hyperperfusion syndrome is a severe carotid artery stent placement complication of extremely high-grade stenosis, causing hemodynamic insufficiency. To prevent hyperperfusion syndrome, we attempted intentional residual stent stenosis and implemented "gentle" carotid artery stent placement, defined as carotid artery stent placement using a closed-cell stent coupled with slight balloon predilation, without balloon postdilation. Gradual stent expansion was expected. We investigated the incidence of hyperperfusion syndrome and long-term outcomes after gentle carotid artery stent placement. MATERIALS AND METHODS We included patients who underwent carotid artery stent placement for extremely high-grade stenosis from January 2015 to March 2019. We defined extremely high-grade stenosis as carotid stenosis with conventional angiographic "slow flow" and a reduced MCA signal intensity on MRA. A reduced MCA signal intensity was defined as MCA with a relative signal intensity of <0.9 in the ipsilateral compared with the contralateral MCA. We evaluated the stent diameter, CBF on SPECT, hyperperfusion syndrome, and intracranial hemorrhage. We defined hyperperfusion syndrome as a triad of ipsilateral headache, seizure, and hemiparesis. RESULTS Twenty-eight of the 191 patients met our inclusion criteria. After carotid artery stent placement, their median minimal stent diameter was 2.9 mm, which expanded to 3.9 mm at 4 months. Neither cerebral hyperperfusion syndrome nor intracranial hemorrhage occurred. CONCLUSIONS The gentle carotid artery stent placement strategy for intentional residual stent stenosis may prevent hyperperfusion syndrome in high-risk patients. Stents spontaneously dilated in 4 months.
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Mori T, Wakabayashi H, Ogawa N, Fujishima I, Oshima F, Itoda M, Kunieda K, Shigematsu T, Nishioka S, Tohara H, Yamada M, Ogawa S. The Mass of Geniohyoid Muscle Is Associated with Maximum Tongue Pressure and Tongue Area in Patients with Sarcopenic Dysphagia. J Nutr Health Aging 2021; 25:356-360. [PMID: 33575728 DOI: 10.1007/s12603-020-1528-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES We investigated the associations about the mass of geniohyoid and tongue muscle and the maximum tongue pressure in patients with sarcopenic dysphagia using ultrasonography. DESIGN Cross sectional study. SETTING 5 hospitals including 3 acute and 2 rehabilitation hospitals and 1 older facility. PARTICIPANTS 36 inpatients with sarcopenic dysphagia. MEASUREMENTS Ultrasonography was performed for geniohyoid muscle and tongue. The area for geniohyoid and tongue muscles in sagittal plane and the mean brightness level (0-255) in the muscle area were calculated. Maximum tongue pressure as strength of swallowing muscle were investigated. Partial correlation coefficient and multiple regression analysis adjusting for age and sex were performed. RESULTS The mean age was 81.1 ± 7.9. Men were 23. The mean BMI was 19.0 ± 4.1. The mean maximum tongue pressure was 21.3 ± 9.3 kPa. The mean cross sectional area for geniohyoid muscles was 140 ± 47 mm2. The mean brightness for geniohyoid muscle was 18.6 ± 9.0. The mean cross sectional area for tongue muscles was 1664.1 ± 386.0 mm2. The mean brightness for tongue muscles was 34.1 ± 10.6. There was a significant positive correlation between area of geniohyoid muscle and maximum tongue pressure (r = 0.38, p = 0.04). Geniohyoid muscle area was an explanatory factor for maximum tongue pressure (p = 0.012) and tongue muscle area (p = 0.031) in multivariate analysis. CONCLUSIONS Geniohyoid muscle mass was an independent explanatory factor for maximum tongue pressure and tongue muscle mass.
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Ito Y, Takeichi T, Igari S, Mori T, Ono A, Suyama K, Takeuchi S, Muro Y, Ogi T, Hosoya M, Yamamoto T, Akiyama M. MEDNIK-like syndrome due to compound heterozygous mutations in AP1B1. J Eur Acad Dermatol Venereol 2020; 35:e345-e347. [PMID: 33349978 DOI: 10.1111/jdv.17098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/07/2020] [Accepted: 12/16/2020] [Indexed: 11/29/2022]
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Maeda A, Murakami M, Iwasaki R, Goto S, Kitagawa K, Sakai H, Mori T. Three-dimensional conformal radiation therapy for canine aortic body tumour: 6 cases (2014-2019). J Small Anim Pract 2020; 62:385-390. [PMID: 33300156 DOI: 10.1111/jsap.13241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To determine the feasibility of three-dimensional conformal radiation therapy for canine aortic body tumours. MATERIALS AND METHODS Medical records of dogs that had undergone three-dimensional conformal radiation therapy with presumptive diagnosis of aortic body tumour were reviewed for clinical characteristics, treatment modality and outcomes. RESULTS Eight dogs were diagnosed with aortic body tumour and were treated with three-dimensional conformal radiation therapy. One dog had proliferation of a mass in the right atrium during treatment and died of respiratory distress. Another dog did not undergo follow-up CT to evaluate the treatment response due to the increased blood urea nitrogen values. The remaining 6 dogs were included in the case series. Radiotherapy was performed using a median dose per fraction of 7 Gy (3.3-7.14 Gy), a median of seven divided doses (7-15) and a total median dose of 49 Gy (45-50 Gy). The median number of CT scans during the follow-up period was 5 (range: 3-8 times). CT revealed acute side effects in four dogs-grade 1 effects related to the lung (n = 4) and skin (n = 2). Self-limiting or asymptomatic late side effects (grade 1 lung-related effect) were observed in three dogs. After therapy, one dog demonstrated a complete response, another demonstrated a partial response and the disease remained stable in four animals. The median follow-up period was 514.5 (235-1219) days. After three-dimensional conformal radiation therapy, the aortic body tumour reduced gradually over time without regrowth in all these 6 dogs. CLINICAL SIGNIFICANCE In this small case series, aortic body tumours responded to three-dimensional conformal radiation therapy. Transient and self-limiting side effects of the treatments were common. Further controlled studies are required to prove the effectiveness and the safety of this intervention.
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Li Y, Jia S, Shen C, Adachi I, Aihara H, Al Said S, Asner D, Aushev T, Ayad R, Babu V, Bahinipati S, Behera P, Belous K, Bennett J, Bessner M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder T, Campajola M, Červenkov D, Chang MC, Chang P, Chen A, Cheon B, Chilikin K, Cho K, Cho SJ, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Das S, Dash N, De Nardo G, Di Capua F, Dingfelder J, Doležal Z, Dong T, Eidelman S, Epifanov D, Ferber T, Fulsom B, Garg R, Gaur V, Garmash A, Giri A, Goldenzweig P, Guan Y, Hadjivasiliou C, Hartbrich O, Hayasaka K, Hayashii H, Hedges M, Hou WS, Hsu CL, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs W, Jeon H, Jin Y, Joo C, Joo K, Kaliyar A, Kang K, Karyan G, Kawasaki T, Kiesling C, Kim D, Kim KH, Kim S, Kim YK, Kinoshita K, Kodyš P, Konno T, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kumar M, Kumar R, Kumara K, Kwon YJ, Lalwani K, Lange J, Lee I, Lee S, Li C, Li J, Li L, Li Y, Li Gioi L, Libby J, Lieret K, Liptak Z, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty G, Mohanty S, Mori T, Mussa R, Nakao M, Natkaniec Z, Natochii A, Nayak L, Nayak M, Niiyama M, Nisar N, Nishida S, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pang T, Pardi S, Park H, Park SH, Patra S, Paul S, Pedlar T, Pestotnik R, Piilonen L, Podobnik T, Popov V, Prencipe E, Prim M, Ritter M, Röhrken M, Rostomyan A, Rout N, Russo G, Sahoo D, Sakai Y, Sandilya S, Sangal A, Santelj L, Sanuki T, Savinov V, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Sevior M, Shapkin M, Sharma C, Shiu JG, Shwartz B, Sokolov A, Solovieva E, Starič M, Stottler Z, Sumihama M, Sumisawa K, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Uchida M, Uglov T, Unno Y, Uno S, Vahsen S, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Wang C, Wang E, Wang MZ, Wang P, Watanabe M, Watanuki S, Won E, Xu X, Yabsley B, Yan W, Yang S, Ye H, Yelton J, Yin J, Yuan C, Zhang Z, Zhilich V, Zhukova V, Zhulanov V. Search for a doubly charged
DDK
bound state in
ϒ(1S, 2S)
inclusive decays and via direct production in
e+e−
collisions at
s=10.520
, 10.580, and 10.867 GeV. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.102.112001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Koyasu N, Hyodo F, Shoda S, Iwasaki R, Tomita H, Masaki T, Mori T, Matsuo M. Noninvasive Redox Imaging of Tumor Redox Status for Early Detection of Radiation Response using In Vivo DNP-MRI. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1637] [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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Ono K, Shevchenko SN, Mori T, Moriyama S, Nori F. Analog of a Quantum Heat Engine Using a Single-Spin Qubit. PHYSICAL REVIEW LETTERS 2020; 125:166802. [PMID: 33124837 DOI: 10.1103/physrevlett.125.166802] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
A quantum two-level system with periodically modulated energy splitting could provide a minimal universal quantum heat machine. We present the experimental realization and the theoretical description of such a two-level system as an impurity electron spin in a silicon tunnel field-effect transistor. In the incoherent regime, the system can behave analogously to either an Otto heat engine or a refrigerator. The coherent regime could be described as a superposition of those two regimes, producing specific interference fringes in the observed source-drain current.
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Keino D, Kondoh K, Kim Y, Sudo A, Ohyama R, Morimoto M, Nihira H, Izawa K, Iwaki-Egawa S, Mori T, Kinoshita A. Successful treatment with cyclosporine and anti-tumour necrosis factor agent for deficiency of adenosine deaminase-2. Scand J Rheumatol 2020; 50:243-245. [PMID: 32720851 DOI: 10.1080/03009742.2020.1772868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mori T, Yokogawa N, Shimada K. AB1118 OPEN MUSCLE BIOPSY AS A SAFE AND USEFUL MEANS OF DIAGNOSING VASCULITIS: A SINGLE-CENTER EXPERIENCE OF 210 BIOPSY CASES. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:We previously reported the utility of open muscle biopsies in diagnosing vasculitis [1]. The number of open muscle biopsies performed at our department has increased to over 200. The purpose of the present study was to evaluate the diagnostic utility of vasculitis and the safety of the open muscle biopsies.Objectives:To clarify the diagnostic utility of vasculitis and the safety profile of the open muscle biopsy.Methods:We retrospectively examined all cases of open muscle biopsy performed between May 2012 and June 2018 in our department. The biopsy results, the presence or absence of adverse events, and blood test data at the time of the biopsy were extracted from the patients’ electronic medical records.Results:Between May 2012 and June 2018, 210 open muscle biopsies were performed, 120 of which were done for vasculitis diagnosis. Diagnostic histopathological findings were obtained in 42 of the 120 cases (35%). The definitive diagnosis in these cases was microscopic polyangiitis (30 cases), eosinophilic granulomatosis with polyangiitis (seven cases), granulomatosis with polyangiitis (one case), polyarteritis nodosa (three cases), and other vasculitis (one case). In 57 cases with myeloperoxidase-anti-neutrophil cytoplasmic antibody (MPO-ANCA) ≥ 10 U/ml, 31 cases (54.3%) showed histopathology of vasculitis. In six cases with protainase-3-ANCA (PR3-ANCA) ≥ 10 U/ml, histopathology of vasculitis was found in one case (16.7%).In all 210 open muscle biopsy cases, complications included minor wound dehiscence (11 cases) and small subcutaneous hematoma (six cases), which were able to be managed by local treatment. Albumin was significantly lower in the patients with wound dehiscence (mean 3.2 vs 2.7, p = 0.049)Serious complications included anaphylaxis due to local anesthesia (one case), compartment syndrome due to hematoma (one case), hematoma requiring surgical removal (one case), and arterial hemorrhage requiring surgical intervention (one case). The patients in the latter three hemorrhagic cases were receiving antiplatelet drugs.Conclusion:An open muscle biopsy is useful for diagnosing vasculitis, especially for MPO-ANCA-positive anca-associated vasculitis. Its safety profile is acceptable. Serious adverse events are rare, but the procedure should be performed carefully when patients are receiving antiplatelet drugs.References:[1]Nunokawa T. et al. The use of muscle biopsy in the diagnosis of systemic vasculitis affecting small to medium-sized vessels: A prospective evaluation in Japan. Scand. J. Rheumatol. 2016;45:210–214Disclosure of Interests:None declared
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Mori T, Hotta Y, Kataoka T, Matumoto S, Yamamoto T, Kimura K. HP-1-4 Filtrated Bone Marrow-Derived Mesenchymal Stem Cell Lysate Improves Erectile Function in a Rat Model of Cavernous Nerve Injury. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.113] [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]
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Caria G, Urquijo P, Adachi I, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Babu V, Badhrees I, Bahinipati S, Bakich AM, Behera P, Beleño C, Bennett J, Bhuyan B, Bilka T, Biswal J, Bozek A, Bračko M, Browder TE, Campajola M, Červenkov D, Chang P, Cheaib R, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho HE, Cho K, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Dash N, De Nardo G, Di Capua F, Di Carlo S, Doležal Z, Dong TV, Eidelman S, Epifanov D, Fast JE, Ferber T, Ferlewicz D, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Greenwald D, Grzymkowska O, Guan Y, Hartbrich O, Hayasaka K, Hayashii H, Higuchi T, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Kaliyar AB, Kang KH, Karyan G, Kawasaki T, Kichimi H, Kim CH, Kim DY, Kim HJ, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krohn JF, Krokovny P, Kuhr T, Kumar R, Kwon YJ, Lange JS, Lee IS, Lee JK, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Lieret K, Liventsev D, Luo T, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Metzner F, Miyabayashi K, Mohanty GB, Moon TJ, Mori T, Mussa R, Nakamura KR, Nakao M, Nath KJ, Nayak M, Nisar NK, Nishida S, Nishimura K, Ogawa K, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pal B, Pang T, Park H, Park SH, Patra S, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Prim MT, Rabusov A, Resmi PK, Ritter M, Rozanska M, Russo G, Sahoo D, Sakai Y, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Sevior ME, Shebalin V, Shiu JG, Shwartz B, Simon F, Sokolov A, Solovieva E, Starič M, Stottler ZS, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uglov T, Uno S, Usov Y, Vahsen SE, Van Tonder R, Varner G, Varvell KE, Vossen A, Waheed E, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanuki S, Wiechczynski J, Won E, Yamamoto H, Yang SB, Ye H, Yin JH, Yuan CZ, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Measurement of R(D) and R(D^{*}) with a Semileptonic Tagging Method. PHYSICAL REVIEW LETTERS 2020; 124:161803. [PMID: 32383937 DOI: 10.1103/physrevlett.124.161803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 03/10/2020] [Indexed: 06/11/2023]
Abstract
The experimental results on the ratios of branching fractions R(D)=B(B[over ¯]→Dτ^{-}ν[over ¯]_{τ})/B(B[over ¯]→Dℓ^{-}ν[over ¯]_{ℓ}) and R(D^{*})=B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}ℓ^{-}ν[over ¯]_{ℓ}), where ℓ denotes an electron or a muon, show a long-standing discrepancy with the standard model predictions, and might hint at a violation of lepton flavor universality. We report a new simultaneous measurement of R(D) and R(D^{*}), based on a data sample containing 772×10^{6} BB[over ¯] events recorded at the ϒ(4S) resonance with the Belle detector at the KEKB e^{+}e^{-} collider. In this analysis the tag-side B meson is reconstructed in a semileptonic decay mode and the signal-side τ is reconstructed in a purely leptonic decay. The measured values are R(D)=0.307±0.037±0.016 and R(D^{*})=0.283±0.018±0.014, where the first uncertainties are statistical and the second are systematic. These results are in agreement with the standard model predictions within 0.2, 1.1, and 0.8 standard deviations for R(D), R(D^{*}), and their combination, respectively. This work constitutes the most precise measurements of R(D) and R(D^{*}) performed to date as well as the first result for R(D) based on a semileptonic tagging method.
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Katrenko P, Adachi I, Aihara H, Al Said S, Asner DM, Aushev T, Badhrees I, Bahinipati S, Behera P, Beleño C, Bennett J, Bhardwaj V, Bhuyan B, Biswal J, Bobrov A, Bonvicini G, Bračko M, Campajola M, Cao L, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho HE, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Di Capua F, Di Carlo S, Doležal Z, Dong TV, Eidelman S, Epifanov D, Fast JE, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Golob B, Grzymkowska O, Hartbrich O, Hayasaka K, Hayashii H, Hou WS, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Karyan G, Kichimi H, Kim DY, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Križan P, Kroeger R, Kuhr T, Lee IS, Lee SC, Lewis P, Li YB, Li Gioi L, Libby J, Lieret K, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon TJ, Mori T, Mussa R, Nakano E, Nakano T, Nakao M, Nayak M, Nisar NK, Nishida S, Nishimura K, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pang T, Pardi S, Park CW, Park H, Park SH, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Prim MT, Ritter M, Rostomyan A, Rout N, Russo G, Sahoo D, Sakai Y, Sandilya S, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Sevior ME, Shen CP, Shiu JG, Solovieva E, Starič M, Stottler ZS, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Tonder R, Varner G, Vossen A, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Won E, Yang SB, Ye H, Yelton J, Yin JH, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhukova V. Observation of the Radiative Decays of ϒ(1S) to χ_{c1}. PHYSICAL REVIEW LETTERS 2020; 124:122001. [PMID: 32281835 DOI: 10.1103/physrevlett.124.122001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/28/2020] [Accepted: 03/05/2020] [Indexed: 06/11/2023]
Abstract
We report the first observation of the radiative decay of the ϒ(1S) into a charmonium state. The significance of the observed signal of ϒ(1S)→γχ_{c1} is 6.3 standard deviations including systematics. The branching fraction is calculated to be B[ϒ(1S)→γχ_{c1}]=[4.7_{-1.8}^{+2.4}(stat)_{-0.5}^{+0.4}(sys)×10^{-5}]. We also searched for ϒ(1S) radiative decays into χ_{c0,2} and η_{c}(1S,2S), and set upper limits on their branching fractions. These results are obtained from a 24.9 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider at a center-of-mass energy equal to the ϒ(2S) mass using ϒ(1S) tagging by the ϒ(2S)→ϒ(1S)π^{+}π^{-} transitions.
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Sakabe S, Maeno K, Yamagishi H, Unno K, Mori T, Tone K, Horiguchi M, Takamura T, Izumi D, Seko T, Kasai A. P179 Alterations of resting heart rate and heart rate viability after cryoballon ablation in the patients with paroxysmal atrial fibrillation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
While it is generally accepted that cardiac autonomic nervous system (CANS) plays an important role in atrial fibrillation (AF) and pulmonary vein isolation (PVI) by radiofrequency catheter ablation modifies the ganglionated plexi (GP), the alterations of CANS after PVI are not clarified.
Purpose
The objective of this study was to investigate the alteration of CANS after conventional cryoballoon ablation (CBA) by using a non-invasive examination method of measuring resting heart rate (R-HR) and coefficient of variation of R-R interval (CVR-R) which is a representative parameter of heart rate viability. CVR-R reflects R-R interval variation affected by respiration. It is calculated from the R-R interval of consecutive 100 heart beats of sinus rhythm recorded at rest. Declines of CVR-R indicate the parasympathetic dysfunction and the normal range of it varies depend on the age. As age increases from 30s to 70s, the average value of CVR-R decreases from 4.0% to 2.4%.
Methods
Consecutive patients of paroxysmal AF treated with initial CBA in our institute participated. Subjects were limited to the patients who maintained sinus rhythm through the study and whose prescription had not been changed after procedure. All patients recorded 12-lead electrocardiogram to measure R-HR and CVR-R before and the day after the procedure. We compared R-HR and CVR-R of all patients before and after CBA. And in addition, we compared them in each of two groups whose pre-procedural H-RH were under 50 bpm (Group-U50) and over 70 bpm (Group-O70). All procedures were performed with second generation 28mm cryoballoon (CB)s under the conscious sedation with Dexmedetomidine. CB temperature was down to a minimum of -60°C and target application time was 180 seconds.
Results
In the procedure of all 105 patients (male gender, 54%; age, 66.9 ± 10.4years; CHADS2score, 1.15 ± 1.04; diabetes mellitus,14%; beta-blocker therapy, 16%), 1 of touch-up for PVI, 6 of supra vena cava isolation and 21 of cavotricuspid isthmus linear ablations with radiofrequency catheter were added. In all patients, R-HR increased from 58.9 ± 9.2bpm to 72.4 ± 9.5bpm (P < 0.01) and CVR-R decreased from 2.36 ± 1.08% to 1.24 ± 0.68% (P < 0.01), respectively. In Group-U50 (n = 14; male gender 64%; age 67.6 ± 12.4 years), R-HR increased from 47.1 ± 2.1bpm to 64.4 ± 7.9bpm (P < 0.01) and CVR-R decreased from 2.58 ± 1.59% to 1.34 ± 0.82% (P < 0.01), respectively. In Group-O70 (n = 17; male gender 43%; age 67.4 ± 12.6 years), R-HR increased from 73.7 ± 2.8bpm to 81.8 ± 7.4bpm (P < 0.01) and CVR-R decreased from 2.33 ± 0.94% to 1.14 ± 0.52% (P < 0.01), respectively. Values of CVR-R before and after CBA showed no significant difference between the two groups.
Conclusions
After CBA, R-HR increment and CVR-R decrement were significantly observed. CVR-R was halved regardless of pre–procedural R-HR. Damages to GP by CBA would be reflected as denervation of vagus nerves in CANS. R-HR increase might be associated with parasympathetic suppression of CANS.
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Morita K, Tsuka H, Kimura H, Mori T, Yoshikawa M, Yoshida M, Kimura M, Tsuga K. Oral function and vertical jump height among healthy older people in Japan. COMMUNITY DENTAL HEALTH 2019; 36:275-279. [PMID: 31670918 DOI: 10.1922/cdh_4515morita05] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Vertical jump height and oral function affect the general muscle condition. This study aimed to evaluate the association between vertical jump height and oral function among healthy older individuals. BASIC RESEARCH DESIGN Cross-sectional analytic study. PARTICIPANTS 231 independent older people (mean age, 74.4 ± 5.6 years) who participated in the Kyoto Elders Physical Fitness Measurement Research Project. Individuals with partial or complete edentulousness who did not use a prosthetic device or complained of oral/maxillofacial pain were excluded from the study. INTERVENTIONS Grip strength was measured using a Smedley Hand Dynamometer. To measure masticatory performance, the participants were instructed to chew a gummy jelly on their habitual chewing side (left or right) for 20 s. Occlusal force, contact area, and pressure were also assessed. MAIN OUTCOME MEASURES The outcome variable was vertical jump height. The predictor variables were physical status (age, body mass index, and grip strength), oral status (number of present teeth and denture use), and oral function (masticatory performance, occlusal force, occlusal contact area, occlusal pressure, and tongue pressure). These relationships were evaluated with univariate analysis, and then multiple regression analysis was performed with age as the covariate for each male and female participant. RESULTS Vertical jump height was significantly associated with grip strength in both men and women. Moreover, in women, it was associated with masticatory performance, occlusal force, and occlusal contact area. CONCLUSIONS Vertical jump height was closely associated with oral function among healthy older women.
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Hinterleitner B, Knapp I, Poneder M, Shi Y, Müller H, Eguchi G, Eisenmenger-Sittner C, Stöger-Pollach M, Kakefuda Y, Kawamoto N, Guo Q, Baba T, Mori T, Ullah S, Chen XQ, Bauer E. Thermoelectric performance of a metastable thin-film Heusler alloy. Nature 2019; 576:85-90. [DOI: 10.1038/s41586-019-1751-9] [Citation(s) in RCA: 151] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 08/22/2019] [Indexed: 11/09/2022]
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Jin Y, Aihara H, Epifanov D, Adachi I, Al Said S, Asner D, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bahinipati S, Bansal V, Behera P, Berger M, Bhardwaj V, Bilka T, Biswal J, Bobrov A, Bonvicini G, Bozek A, Bračko M, Campajola M, Cao L, Červenkov D, Chekelian V, Chen A, Cheon B, Chilikin K, Cho H, Cho K, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Di Carlo S, Doležal Z, Dong T, Dossett D, Eidelman S, Fast J, Ferber T, Fulsom B, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Golob B, Greenwald D, Grzymkowska O, Haba J, Hayasaka K, Hayashii H, Hedges M, Hou WS, Huang K, Iijima T, Inami K, Inguglia G, Ishikawa A, Iwasaki M, Iwasaki Y, Jacobs W, Jeon H, Jia S, Joffe D, Joo K, Kahn J, Kaliyar A, Karyan G, Kawasaki T, Kichimi H, Kiesling C, Kim D, Kim H, Kim K, Kim S, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kulasiri R, Kumar R, Kuzmin A, Kwon YJ, Lalwani K, Lange J, Lee J, Lee S, Li C, Li L, Li Y, Li Gioi L, Libby J, Lieret K, Liptak Z, Liventsev D, Lu PC, Luo T, MacNaughton J, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mori T, Mussa R, Nakano E, Nakao M, Nath K, Natkaniec Z, Nayak M, Niiyama M, Nisar N, Nishida S, Ogawa S, Ono H, Onuki Y, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park H, Park SH, Patra S, Paul S, Pedlar T, Pestotnik R, Piilonen L, Popov V, Prencipe E, Purohit M, Rostomyan A, Russo G, Sahoo D, Sakai Y, Salehi M, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Seon O, Sevior M, Shebalin V, Shen C, Shiu JG, Shwartz B, Simon F, Singh J, Sokolov A, Solovieva E, Stanič S, Starič M, Stottler Z, Strube J, Sumiyoshi T, Takizawa M, Tamponi U, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Vossen A, Wang B, Wang C, Wang MZ, Wang P, Watanuki S, Won E, Yang S, Ye H, Yin J, Yuan C, Yusa Y, Zhang Z, Zhilich V, Zhukova V. Observation of
τ−→π−ντe+e−
and search for
τ−→π−ντμ+μ−. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.100.071101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Aso A, Nakamura T, Fukuyama Y, Fukuda S, Sibao K, Araki M, Meno K, Yakebe D, Omura S, Mori T, Takenaka K, Murasato Y. P1912Incidence of silent cerebral thromboembolism in catheter ablation for atrial fibrillation under the use of DOAC: Comparison of cryoballoon versus radiofrequency ablation system. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0659] [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: 11/14/2022] Open
Abstract
Abstract
Background
Silent cerebral thromboembolism (CE) in catheter ablation for atrial fibrillation (AF) is not rare. Prior our study has reported lower incidence of silent CE in AF radiofrequency (RF) ablation using irrigated-tip catheter than conventional 4 or 8mm-tip catheter. In addition, the incidence of silent CE in AF ablation under direct oral anticoagulant (DOAC) was equivalent to continuous therapeutic warfarin. Recently pulmonary vein isolation (PVI) using cryoballoon (CB) has emerged as an alternative technique to RF ablation because some studies suggested that the efficacy for PVI by CB was equivalent to RF. However, incidence of silent CE in CB ablation under the use of DOAC is unknown.
Objective
We aimed to evaluate the incidence new silent CE in AF ablation using CB system compared with irrigated RF system under the use of DOAC.
Methods
322 consecutive patients with paroxysmal or persistent AF (155 using CB system, 167 using RF system) who underwent the first AF ablation were taking DOAC more than one month prior to the procedure. Throughout AF ablation procedure, heparin was administered to maintain activated clotting time (ACT) between 300 and 400 seconds. Head MRI was performed in all patients within 24 hours after the procedure.
Results
In 14 (9.0%) patients using CB and in 20 (12.0%) patients using RF, head MRI showed new embolic lesions without neurological symptom (P=0.469). Although the amount of heparin during the procedure in group CB was significantly less than in group RF (16134±3125 U vs. 18689±5222 U; P<0.0001), amount of heparin per hour in group CB was more than in group RF (8335±1955 U/h vs. 6143±1918 U/h; P<0.0001) because procedure time in group CB was shorter than in group RF (121.3±34.1 min vs. 189.5±47.4 min; P<0.0001). Mean ACT in both groups was maintained high level (3367±25.3 sec. vs. 338.6±23.5 sec.; P=0.479). In univariate analysis, minimum ACT during procedure, as before puncture of interatrial septum, were significantly correlated with the incidence of silent CE (P=0.027).
Conclusions
The incidence of silent CE in AF ablation using CB system was lower than RF system, although it was not a significant difference between different ablation techniques for AF. In AF ablation, the use of CB may be preferred rather than RF as ablation system in regard to risk reduction of thromboembolic complications.
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Mizutani H, Kurita T, Kasuya S, Mori T, Ito H, Tanimura M, Ichikawa K, Goto I, Masuda J, Sawai T, Ito M, Dohi K. P3632Prognostic impact of aortic valve stenosis in patients with acute myocardial infarction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0490] [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: 11/14/2022] Open
Abstract
Abstract
Background
Aortic valve stenosis (AS) is associated with the presence and severity of coronary artery disease independently of clinical risk factors, which leads to increased cardiovascular mortality. However, the prevalence of AS and its prognostic value among patients with acute myocardial infarction (AMI) remain unknown.
Purpose
The purpose of this study was to investigate the prevalence and prognostic impact of AS in AMI patients.
Methods
We studied 2,803 AMI patients using data from Mie ACS registry, a prospective and multicenter registry. Patients were divided into subgroups according to the presence and severity of AS based on maximal aortic flow rate by Doppler echocardiography before hospital discharge: non-AS <2.0 m/s, 2.0 m/s≤mild AS <3.0 m/s, 3.0 m/s≤moderate AS <4.0m/s and severe AS≥4.0 m/s. The primary outcome was defined as 2-year all-cause mortality.
Results
AS was detected in 79 patients (2.8%) including 49 mild AS, 23 moderate AS and 6 severe AS. AS patients were significantly older (79.9±9.8 versus 68.3±12.6 years), and higher killip classification than non-AS patients (P<0.01, respectively). However, left ventricular ejection fraction, and prevalence of primary PCI was similar between the 2 groups. During the follow-up periods (median 725 days), 333 (11.9%) patients experienced all-cause death. AS patients demonstrated the higher all-cause mortality rate compared to that of non-AS patients during follow up (47.3% versus 11.3%, P<0.0001, chi square). Kaplan-Meier curves showed that the probability of all-cause mortality was significantly higher among AS patients than non-AS patients, and was highest among moderate and severe AS (See figure A and B). Cox regression analyses for all-cause mortality demonstrated that the severity of AS was the strongest and independent poor prognostic factor (HR 1.71, 95% CI 1.30–2.24, P<0.001, See table).
Cox hazard regression analysis Hazard ratio 95% Confidential interval P-value Severity of aortic valve stenosis 1.71 1.30–2.24 <0.001 Killip classification 1.63 1.46–1.82 <0.001 Age 1.07 1.06–1.09 <0.001 Serum creatinine level 1.05 1.03–1.08 <0.001 Max CPK level 1.00 1.00–1.01 <0.001 Left ventricular ejection fraction 0.96 0.95–0.97 <0.001 Primary percutaneous coronary intervention 0.67 0.47–0.96 0.03 CPK suggests creatinine phosphokinase.
All cause mortality
Conclusions
The presence of AS of any severity contributes to worsening of patients' prognosis following AMI independently of other known risk factors.
Acknowledgement/Funding
None
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Mori T, Matsushima R, Hinokuma H, Suzuki M. P2.05-11 3D CT Is Useful for Segmentectomy but Is Not Always True. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1610] [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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Sakabe S, Unno K, Mori T, Horiguchi M, Takamura T, Tone K, Izumi D, Maeno K, Seko T, Kasai A. P1917Can cryoballoon ablation produce alterations in cardiac and extra-cardiac autonomic nervous system in patients with atrial fibrillation? Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0664] [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: 11/14/2022] Open
Abstract
Abstract
Background
Cryoballoon ablation (CBA) during pulmonary vein isolation (PVI) for atrial fibrillation (AF) can cause direct thermal injury to structures adjacent to the left atrium, including the periatrial ganglionated plexi (GP). In contrast, it has not been clarified whether cardiac autonomic nervous system (CANS) modification by CBA could indirectly affect extra-CANS.
Purpose
This study was aimed to investigate the impact of CBA on extra-CANS as well as CANS in AF patients.
Methods
Ninety-three Consecutive patients who underwent initial CBA in our institute were enrolled. Among them, 64 subjects (age 67±9 years; male gender 52%; CHADS2 score 1.2±1.0; diabetes mellitus 16%; β-blocker therapy 23%) had paroxysmal AF (G-P) and 29 (age 66±7 years; male gender 90%; CHADS2 score 1.3±1.0; diabetes mellitus 24%; β-blocker therapy 34%) had sustained AF (G-S). In G-P, resting sinus heart rate (R-HR) and coefficient of variation of the R-R intervals (CVR-R) during sinus rhythm were measured in resting 12-lead electrocardiogram before and after CBA as an index of CANS. Decrease in CVR-R after PVI reflects the vagal nerve injury by the procedure. Pupil movement reflects the autonomic nervous function. In both groups, pupillary light reflex, as an indicator of extra-CANS activity, was measured by infrared videopupillography (Iriscorder® Dual C10641, Hamamatsu Photonics, Hamamatsu, Japan) before and after CBA. Velocity of dilatation (VD) is related to sympathetic function, and velocity of contraction (VC) is associated with the balance between sympathetic and vagal tone. All CBA were treated with second generation 28mm cryoballoons (CB). CB temperature was down to a minimum of −60°C and target application time was 180 seconds.
Results
Complete PVI was achieved in all patients, in which touch-up radiofrequency ablation for the PVI was required in 4 cases of G-S. In G-P, R-HR significantly increased (59.2±9.2bpm to 72.5±8.3bpm, p<0.01) and CVR-R significantly decreased (2.32±1.1% to 1.61±0.61%, p<0.01) after CBA, while VC and VD did not significantly change (3.83±1.03mm2/sec to 3.64±0.96mm2/sec and 1.83±0.62mm2/sec to 1.86±0.84mm2/sec, respectively). In G-S, there were not significant changes between before and after CBA in VC and VD (3.77±0.80mm2/sec to 3.71±0.99mm2/sec and 1.81±0.49mm2/sec to 1.80±0.59mm2/sec, respectively). There were no significant differences between two groups in VC and VD before the procedure.
Conclusion
These results suggest that CBA seems to result in local parasympathetic denervation due to damage of adjacent structures including ganglionated plexi while the alteration of CANS by CBA does not seem to efferently affect extra-CANS.
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Tanaka H, Kawaguchi M, Takano H, Shoda S, Miyoshi T, Iwasaki R, Hyodo F, Tomita H, Mori T, Hara A, Matsuo M. Activation of the Wnt/β-Catenin Signaling Pathway Causes Radioresistance in Colon Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hyodo F, Koyasu K, Yamaguchi T, Iwasaki R, Tanaka H, Shoda S, Takasu M, Mori T, Matsuo M. Free Radical Imaging for Visualization of Radiation Treatment Using Dynamic Nuclear Polarization (DNP) MRI. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.986] [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]
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NAKAYAMA S, Satoh M, Metoki H, Murakami T, Kikuya M, Mori T, Hozawa A, Node K, Imai Y, Ohkubo T. SUN-224 N-TERMINAL PRO-B-TYPE NATRIURETIC PEPTIDE IS A PREDICTOR OF CHRONIC KIDNEY DISEASE INCIDENCE IN AN ASIAN GENERAL POPULATION:THE OHASAMA STUDY. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.628] [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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