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Chijiwa C, Takeoka S, Kamata M, Uchida H, Fukaya S, Hayashi K, Fukuyasu A, Tanaka T, Ishikawa T, Ohnishi T, Tada Y. Secukinumab decreases serum Krebs von den Lungen 6 (KL-6) level in patients with psoriasis with elevated serum KL-6 level. Br J Dermatol 2018; 179:1396-1397. [DOI: 10.1111/bjd.16993] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Higuchi T, Yamamoto N, Hayashi K, Takeuchi A, Abe K, Taniguchi Y, Kato S, Murakami H, Tsuchiya H. Long-term patient survival after the surgical treatment of bone and soft-tissue metastases from renal cell carcinoma. Bone Joint J 2018; 100-B:1241-1248. [PMID: 30168767 DOI: 10.1302/0301-620x.100b9.bjj-2017-1163.r3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims The aims of this study were to evaluate the long-term outcome of surgery for bone or soft-tissue metastases from renal cell carcinoma (RCC) and to determine factors that affect prognosis. Patients and Methods Between 1993 and 2014, 58 patients underwent surgery for bone or soft-tissue metastases from RCC at our hospital. There were 46 men and 12 women with a mean age of 60 years (25 to 84). The mean follow-up period was 52 months (1 to 257). The surgical sites included the spine (33 patients), appendicular skeleton (ten patients), pelvis (eight patients), thorax (four patients), and soft tissue (three patients). The surgical procedures were en bloc metastasectomy in 46 patients (including 33 patients of total en bloc spondylectomy (TES)) and intralesional curettage in 12 patients. These patients were retrospectively evaluated for factors associated with prognosis. Results The one-, three-, five-, ten-, and 15-year overall survival (OS) rates were 89%, 75%, 62%, 48%, and 25%, respectively. The median survival time (MST) was 127 months for en bloc metastasectomy and 54 months for intralesional curettage and bone grafting. The median survival time was 127 months for the spine, 140 months for lesions of the appendicular skeleton, and 54 months for the pelvis. Multivariate analysis showed that non-clear cell type RCC and metastases to more than two sites were independent risk factors for a poor prognosis. Conclusion Patients with bone or soft-tissue metastases from a RCC have a reasonable prognosis, making surgical resection a viable option even in patients in whom the metastases are advanced. Cite this article: Bone Joint J 2018;100-B:1241-8.
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Al Issa S, Murase M, Tomiyama A, Hayashi K, Macián-Juan R. On CCFL at a PWR Hot-Leg Pipe Geometry and Comparison Between Results in COLLIDER 1/4th- and Kobe 1/15th-Scaled Facilities. NUCL SCI ENG 2018. [DOI: 10.1080/00295639.2018.1489627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Okada H, Nakanishi C, Yoshida S, Shimojima M, Mori M, Yokawa J, Tada H, Hayashi K, Kawashiri M, Yamagishi M. P6556Impact of genetically corrected iPSCs on possible reduction LDL-cholesterol in homozygous familial hypercholesterolemia. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6556] [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: 11/13/2022] Open
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Matsuo N, Hayashi K, Katou Y, Hasegawa M, Tanimoto M, Fujiwara T, Kagawa K, Nakano Y, Oonishi N, Takaishi A, Hirohata S, Ueeda M. The westernization of life style and atherosclerosis in Japan – the balance of EPA and AA. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.681] [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: 10/28/2022]
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Nakahashi T, Sakata K, Tada H, Terai H, Horita Y, Ikeda M, Namura M, Takamura M, Hayashi K, Kawashiri M, Yamagishi M. P3672Assessment of ankle-brachial index to predict in-hospital bleeding complication and optimal duration of dual antiplatelet therapy in patients with acute coronary syndrome. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3672] [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: 11/12/2022] Open
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Matsuo N, Hayashi K, Katou Y, Hasegawa M, Tanimoto M, Fujiwara T, Kagawa K, Nakano Y, Oonishi N, Takaishi A, Hirohata S, Ueeda M. Supplementation of Omega-3 PUFAs could improve long term prognosis after pci in patients without hyperlipidemia and diabetes. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Socias M, Ti L, Wood E, Nosova E, Hull M, Hayashi K, Debeck K, Milloy MJ. Uptake of HCV treatment among people who inject drugs in the direct-acting antiviral era in a Canadian setting. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.4282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Yoshida S, Nakanishi C, Okada H, Shimojima M, Mori M, Yokawa J, Ohta K, Kawashiri MA, Yachie A, Yamagishi M, Hayashi K. 5328Generation of disease specific iPSC-derived cardiomyocyte and investigation of their characteristics: study with clinically divergent female monozygotic twins with Danon disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.5328] [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: 11/13/2022] Open
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Tsunoda A, Takahashi T, Hayashi K, Yagi Y, Kusanagi H. Laparoscopic ventral rectopexy in patients with fecal incontinence associated with rectoanal intussusception: prospective evaluation of clinical, physiological and morphological changes. Tech Coloproctol 2018; 22:425-431. [PMID: 29956002 DOI: 10.1007/s10151-018-1811-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 06/14/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Physiological changes after laparoscopic ventral rectopexy (LVR) in patients with rectoanal intussusception (RAI) remain unclear. This study was undertaken to evaluate physiological and morphological changes after LVR for RAI, and to study clinical outcomes following LVR with special reference to fecal incontinence (FI). METHODS The study was conducted on patients who had LVR for RAI between February 2012 and December 2016 at our institution Patients with RAI and FI were included in the study. Patients with RAI and obstructed defecation and those with RAI and neurologic FI were not included. The patients had anorectal manometry preoperatively, and 3, 6, and 12 months postoperatively. Defecography was performed before and 6 months after the procedure. FI was evaluated using the Fecal Incontinence Severity Index (FISI). RESULTS There were 34 patients (median age 77 years (range 60-93) years). Thirty-two patients (94%) were female and the median number of vaginal deliveries was 2 (range 0-5). Neither maximum resting pressure nor maximum squeeze pressure increased postoperatively. There was an overall increase in both defecatory desire volume (median preoperative 75 ml vs. 90 ml at 12 months; p = 0.002) and maximum tolerated volume (median preoperative 145 ml vs.175 ml at 12 months; p = 0.002). Postoperatively, RAI was eliminated in all patients but one, although 13 had residual rectorectal intussusception found at defecography. There was an overall reduction in both rectocele size (median preop 29 mm vs. postop 10 mm; p = 0.008) and pelvic floor descent (median preop 26 mm vs. postop 20 mm; p = 0.005). Twelve months after surgery, a reduction of at least 50% was observed in the FISI score for 31 incontinent patients (91%). CONCLUSIONS LVR for RAI produced adequate improvement of FI, and successful anatomical correction of RAI was confirmed by postoperative proctography. Postoperative increase in the rectal volume may have a positive effect on continence.
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Funahashi H, Vierow Kirkland K, Hayashi K, Hosokawa S, Tomiyama A. Interfacial and wall friction factors of swirling annular flow in a vertical pipe. NUCLEAR ENGINEERING AND DESIGN 2018. [DOI: 10.1016/j.nucengdes.2018.01.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nakagawa R, Moki H, Hayashi K, Ooniwa K, Tokuyama K, Kakuda T, Yoshioka K, Takai S. A case report on disseminated Rhodococcus equi infection in a Japanese black heifer. J Vet Med Sci 2018; 80:819-822. [PMID: 29593168 PMCID: PMC5989029 DOI: 10.1292/jvms.18-0064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Rhodococcus equi was isolated from the granulomatous lesions of the lung, kidney, liver, and hepatic, mesenteric, and abomasum lymph nodes of a Japanese black heifer.
R. equi isolates were analyzed by polymerase chain reaction for virulence-associated protein genes. The vapN gene was detected in all the isolates
examined. This is the first report in which vapN-positive R. equi was isolated from cattle in Japan.
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Shidahara K, Hayashi K, Sada KE, Hiramatsu S, Morishita M, Watanabe H, Matsumoto Y, Kawabata T, Wada J. Refractory neuromyelitis optica spectrum disorder in systemic lupus erythematosus successfully treated with rituximab. Lupus 2018. [PMID: 29498304 DOI: 10.1177/0961203318760994"] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We present a case of a woman with systemic lupus erythematosus (SLE) who had refractory episodes of neuromyelitis optica spectrum disorder (NMOSD) and was successfully treated with rituximab. She was positive for anti-aquaporin-4 (AQP4) antibody and had typical cranial and longitudinally extended spinal lesions but no optic nerve involvement. There is no established treatment for NMOSD/SLE overlap cases. Our experience suggests that rituximab may be effective for patients with combined SLE and anti-AQP4 antibody-positive NMOSD.
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Shidahara K, Hayashi K, Sada KE, Hiramatsu S, Morishita M, Watanabe H, Matsumoto Y, Kawabata T, Wada J. Refractory neuromyelitis optica spectrum disorder in systemic lupus erythematosus successfully treated with rituximab. Lupus 2018; 27:1374-1377. [DOI: 10.1177/0961203318760994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We present a case of a woman with systemic lupus erythematosus (SLE) who had refractory episodes of neuromyelitis optica spectrum disorder (NMOSD) and was successfully treated with rituximab. She was positive for anti-aquaporin-4 (AQP4) antibody and had typical cranial and longitudinally extended spinal lesions but no optic nerve involvement. There is no established treatment for NMOSD/SLE overlap cases. Our experience suggests that rituximab may be effective for patients with combined SLE and anti-AQP4 antibody-positive NMOSD.
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Moore JE, Hirayama J, Hayashi K, Mason C, Coulter W, Matsuda M, Goldsmith CE. Examination of 16S-23S rRNA intergenic spacer region (ISR) heterogeneity in a population of clinical Streptococcus pneumoniae- a new laboratory epidemiological genotyping tool to aid outbreak analysis. Br J Biomed Sci 2018; 75:95-97. [DOI: 10.1080/09674845.2017.1382025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Haratani K, Hayashi H, Tanaka T, Kaneda H, Togashi Y, Sakai K, Hayashi K, Tomida S, Chiba Y, Yonesaka K, Nonagase Y, Takahama T, Tanizaki J, Tanaka K, Yoshida T, Tanimura K, Takeda M, Yoshioka H, Ishida T, Mitsudomi T, Nishio K, Nakagawa K. Tumor immune microenvironment and nivolumab efficacy in EGFR mutation-positive non-small-cell lung cancer based on T790M status after disease progression during EGFR-TKI treatment. Ann Oncol 2018; 28:1532-1539. [PMID: 28407039 DOI: 10.1093/annonc/mdx183] [Citation(s) in RCA: 227] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Indexed: 12/22/2022] Open
Abstract
Background The efficacy of programmed death-1 blockade in epidermal growth factor receptor gene (EGFR) mutation-positive non-small-cell lung cancer (NSCLC) patients with different mechanisms of acquired resistance to EGFR tyrosine kinase inhibitors (TKIs) is unknown. We retrospectively evaluated nivolumab efficacy and immune-related factors in such patients according to their status for the T790M resistance mutation of EGFR. Patients and methods We identified 25 patients with EGFR mutation-positive NSCLC who were treated with nivolumab after disease progression during EGFR-TKI treatment (cohort A). Programmed death-ligand 1 (PD-L1) expression and tumor-infiltrating lymphocyte (TIL) density in tumor specimens obtained after acquisition of EGFR-TKI resistance were determined by immunohistochemistry. Whole-exome sequencing of tumor DNA was carried out to identify gene alterations. The relation of T790M status to PD-L1 expression or TIL density was also examined in an independent cohort of 60 patients (cohort B). Results In cohort A, median progression-free survival (PFS) was 2.1 and 1.3 months for T790M-negative and T790M-positive patients, respectively (P = 0.099; hazard ratio of 0.48 with a 95% confidence interval of 0.20-1.24). Median PFS was 2.1 and 1.3 months for patients with a PD-L1 expression level of ≥1% or <1%, respectively (P = 0.084; hazard ratio of 0.37, 95% confidence interval of 0.10-1.21). PFS tended to increase as the PD-L1 expression level increased with cutoff values of ≥10% and ≥50%. The proportion of tumors with a PD-L1 level of ≥10% or ≥50% was higher among T790M-negative patients than among T790M-positive patients of both cohorts A and B. Nivolumab responders had a significantly higher CD8+ TIL density and nonsynonymous mutation burden. Conclusion T790M-negative patients with EGFR mutation-positive NSCLC are more likely to benefit from nivolumab after EGFR-TKI treatment, possibly as a result of a higher PD-L1 expression level, than are T790M-positive patients.
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Melo J, Garfein R, Hayashi K, Milloy M, DeBeck K, Sun S, Jain S, Strathdee S, Werb D. Do law enforcement interactions reduce the initiation of injection drug use? An investigation in three North American settings. Drug Alcohol Depend 2018; 182:67-73. [PMID: 29169035 PMCID: PMC6219752 DOI: 10.1016/j.drugalcdep.2017.10.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 10/02/2017] [Accepted: 10/04/2017] [Indexed: 11/17/2022]
Abstract
BACKGROUND The prevention of drug injecting is often cited as a justification for the deployment of law enforcement and for the continuation of drug criminalization policies. We sought to characterize the impact of law enforcement interactions on the risk that people who inject drugs (PWID) report assisting others with injection initiation in three North American countries. METHODS Cross-sectional data from PWID participating in cohort studies in three cities (San Diego, USA; Tijuana, Mexico; Vancouver, Canada) were pooled (August 2014-December 2016). The dependent variable was defined as recently (i.e., past six months) providing injection initiation assistance; the primary independent variable was the frequency of recent law enforcement interactions, defined categorically (0 vs. 1 vs. 2-5 vs. ≥6). We employed multivariable logistic regression analyses to assess this relationship while controlling for potential confounders. RESULTS Among 2122 participants, 87 (4.1%) reported recently providing injection initiation assistance, and 802 (37.8%) reported recent law enforcement interactions. Reporting either one or more than five recent interactions with law enforcement was not significantly associated with injection initiation assistance. Reporting 2-5 law enforcement interactions was associated with initiation assistance (Adjusted Odds Ratio=1.74, 95% Confidence Interval: 1.01-3.02). CONCLUSIONS Reporting interactions with law enforcement was not associated with a reduced likelihood that PWID reported initiating others into injection drug use. Instead, we identified a positive association between reporting law enforcement interactions and injection initiation assistance among PWID in multiple settings. These findings raise concerns regarding the effectiveness of drug law enforcement to deter injection drug use initiation.
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Sato H, Takahashi K, Nakajima N, Hasegawa G, Mizuno K, Hashimoto S, Ikarashi S, Hayashi K, Honda Y, Yokoyama J, Sato Y, Terai S. Full-layer mucosal histology in achalasia: Histological epithelial wave is characteristic in "pinstripe pattern"-positive achalasia. Neurogastroenterol Motil 2018; 30. [PMID: 28745833 DOI: 10.1111/nmo.13168] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 06/26/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Previously, the mucosal histology in achalasia has only been investigated using superficial biopsy or surgically resected esophageal specimens in end-stage cases. We investigated the histology of the full-layer mucosa in early and advanced achalasia. METHODS Endoscopy was performed for the pinstripe pattern (PSP) (an early achalasia indicator) and dilation and thickening of the mucosa (advanced achalasia indicators). A mucosal entry site for peroral endoscopic myotomy was created using cap-fitted endoscopic mucosal resection to access the full-layer mucosa and the submucosa. KEY RESULTS Mucosal histology was compared between 32 patients with achalasia and 15 controls. Histological esophagitis with findings of inflammatory cell infiltration and dilated intercellular spaces was observed more in patients with achalasia than in controls (87.5% vs 13.3%, P<.001; 84.4% vs 46.7%, P=.049). Muscularis mucosae (MM) atrophy and epithelial wave were only observed in achalasia (40.6% vs 0%, P=.005; 28.1% vs 0%, P=.043). Fibrosis was more common in achalasia, but without statistical significance (31.3% vs 20.0%, P=.503). In achalasia with endoscopic dilation and thickening of the mucosa, MM atrophy was observed histologically, and in cases involving endoscopic PSP, the histological epithelial wave was observed. CONCLUSIONS & INFERENCES Histological findings of esophagitis were observed endoscopically even in early achalasia. Pinstripe pattern corresponds to the epithelial wave observed histologically in achalasia, whereas endoscopic findings in advanced achalasia correspond to MM atrophy. Appropriate management is necessary during early achalasia to prevent progression to advanced achalasia with more severe histological changes.
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Ohshio Y, Hayashi K, Okamoto K, Kaku R, Kataoka Y, Kawaguchi Y, Ohshio M, Igarashi T, Hashimoto M, Teramoto K, Hanaoka J. P1.02-030 The Effect of Chronic Obstructive Pulmonary Disease on the Tumor Stroma in Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.763] [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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Nakamura T, Ide H, Eguchi R, Hayashi K, Takasaki K, Watanabe S. CYFRA 21-1 as a tumor marker for squamous cell carcinoma of the esophagus. Dis Esophagus 2017; 11:35-39. [PMID: 29040480 DOI: 10.1093/dote/11.1.35] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study assessed the clinical value of CYFRA 21-1 in comparison with squamous cell carcinoma antigen (SCC-Ag), carcinoembryonic antigen (CEA), and carbohydrate antigen 19-9 (CA19-9) in patients with esophageal squamous cell carcinoma. In 112 primary cancer patients, the diagnostic sensitivity of CYFRA 21-1 (33.9%) was superior to SCC-Ag (28.6%), CEA (12.5%), and CA19-9 (6.3%). Levels of CYFRA 21-1 were closely correlated with TNM stage and were below the cutoff value in all 21 patients with stage I disease. All 38 patients with a CYFRA 21-1 level over the cutoff value among the 80 patients who underwent esophagectomy had lymph node metastases (pNl). A correlation was found between CYFRA 21-1 levels and clinical response in serial measurements of 21 patients who received chemotherapy or chemo radiotherapy. Our findings suggest that CYFRA 21-1 is not useful for diagnosis, but that it is valuable for monitoring the efficacy of therapy.
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Igarashi T, Hayashi K, Okamoto K, Kaku R, Kataoka Y, Kawaguchi Y, Hashimoto M, Ohshio Y, Teramoto K, Hanaoka J. P3.16-048 The Role of Pulmonary Resection in Stage IVa Non-Small Cell Carcinoma Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1855] [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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Teramoto K, Namura Y, Hayashi K, Ishida K, Ueda K, Okamoto K, Kaku R, Hori T, Kawaguchi Y, Igarashi T, Hashimoto M, Ohshio Y, Kitamura S, Motoishi M, Suzumura Y, Sawai S, Hanaoka J, Daigo Y. P1.03-037 A Phase II Study of Adjuvant Chemotherapy with Docetaxel plus Nedaplatin for Completely Resected Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Takahashi K, Sato Y, Takeuchi M, Sato H, Nakajima N, Ikarashi S, Hayashi K, Mizuno KI, Honda Y, Hashimoto S, Yokoyama J, Terai S. Changes in esophageal motility after endoscopic submucosal dissection for superficial esophageal cancer: a high-resolution manometry study. Dis Esophagus 2017; 30:1-8. [PMID: 28881900 DOI: 10.1093/dote/dox057] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Indexed: 12/11/2022]
Abstract
The effect of endoscopic submucosal dissection (ESD) on esophageal motility remains unknown. Therefore, the aim of this study is to elucidate changes in esophageal motility after ESD along with the cause of dysphagia using high-resolution manometry (HRM). This is a before-and-after trial of the effect of ESD on the esophageal motility. Twenty patients who underwent ESD for superficial esophageal carcinoma were enrolled in this study. Patients filled out a questionnaire about dysphagia and underwent HRM before and after ESD. Results before and after ESD were compared. Data were obtained from 19 patients. The number of patients who complained of dysphagia before and after ESD was 1/19 (5.3%) and 6/19 (31.6%), respectively (P = 0.131). Scores from the five-point Likert scale before and after ESD were 0.1 ± 0.5 and 1.0 ± 1.6, respectively (P = 0.043). The distal contractile integral (DCI) before and after ESD and the number of failed, weak, or fragmented contractions were not significantly different. However, in five patients with circumferential ESD, DCI was remarkably decreased and the frequency of fail, weak, or fragmented contractions increased. Univariate regression analysis showed a relatively strong inverse correlation of ΔDCI with the circumferential mucosal defect ratio {P < 0.01, standardized regression coefficient (r) = -0.65}, the number of stricture preventions (P < 0.01, r = -0.601), and the number of stricture resolutions (P < 0.01, r = -0.77). This HRM study showed that impairment of esophageal motility could be caused by ESD. The impairment of esophageal motility was conspicuous, especially in patients with circumferential ESD and subsequent procedures such as endoscopic triamcinolone injection and endoscopic balloon dilatation. Impaired esophageal motility after ESD might explain dysphagia.
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Stellhorn JR, Hosokawa S, Happo N, Tajiri H, Matsushita T, Kaminaga K, Fukumura T, Hasegawa T, Hayashi K. A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film. J Appl Crystallogr 2017. [DOI: 10.1107/s1600576717012821] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The first direct valence-selective structure determination by X-ray fluorescence holography is reported. The method is applied to investigate an epitaxial thin film of the rare earth monoxide YO, which has recently been synthesized by pulsed laser deposition. The surface of the sample is easily oxidized to Y2O3. In order to separate the structural information connected with the two different valence states of Y, the X-ray fluorescence holography measurements were performed close to the YKabsorption edge. Using the shift of the absorption edge for the different valence states, very different relative contributions of YO and Y2O3are obtained. Thus, it is possible to distinguish the crystal structures of YO and Y2O3in the thin-film sample.
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Saito T, Hayashi K, Nakazawa H, Yagihashi F, Oikawa L, Ota T. A significant association between dysphagia and malnutrition in patients with acute diseases. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3026] [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]
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