1
|
Teng WJ, Kung CH, Cheng MM, Tsai JR, Chang CY. Intramural Hematoma of Gastrointestinal Tract in People with Hemophilia A and B. J Clin Med 2023; 12:jcm12093093. [PMID: 37176534 PMCID: PMC10179287 DOI: 10.3390/jcm12093093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/31/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023] Open
Abstract
People with hemophilia (PWH), especially severe hemophilia, often experience bleeding episodes, which occur mostly at major joints. Intramural hematoma of the gastrointestinal (GI) tract is a rare, potentially life-threatening clinical bleeding manifestation in PWH. Prompt identification and timely administration of clotting factor concentrates are of utmost importance for effective management and optimal patient outcomes. In this report, we present the case of a 48-year-old male with severe hemophilia A. The patient developed a spontaneous intramural hematoma of the jejunum, leading to signs of acute abdomen, bloody stool, and paralytic ileus. Conservative management with factor VIII (FVIII) infusion was successfully administered. However, within a span of three months, the patient suffered from a recurrent episode of intramural hematoma, which was again effectively treated with conservative therapy. Subsequently, prophylactic FVIII therapy was administered to the patient, resulting in the absence of recurrence for over three years. Inspired by this case, we conducted a comprehensive review of the relevant literature and gathered data from 79 reported cases of intramural hematoma that were documented between the years 1956 and 2022. We classified these cases based on the site affected within the gastrointestinal (GI) tract (spread across five different locations) and proceeded to conduct a simple pooling analysis on the data collected, which subsequently revealed that the overall mortality rate of intramural hematoma in people with hemophilia (PWH) was found to be 12.2%, while children have a higher mortality rate (23.3%) than adults (4.9%). We hope this case report and literature review increase awareness of this rare bleeding manifestation in PWH, the effectiveness of conservative treatment, and the possibility of prophylaxis against recurrence.
Collapse
Affiliation(s)
- Wei-Jung Teng
- School of Medicine, College of Medicine, Taipei Medical University, Taipei City 110, Taiwan
| | - Ching-Huei Kung
- Department of Medical Imaging, Taipei Medical University Hospital, Taipei City 110, Taiwan
| | - Mei-Mei Cheng
- Division of Pediatric Gastroenterology, Department of Pediatrics, Cheng Hsin General Hospital, Taipei City 112, Taiwan
| | - Jia-Ruey Tsai
- Department of Hematology and Oncology, Taipei Medical University Hospital, Taipei City 110301, Taiwan
- Hemophilia Center, Taipei Medical University Hospital, Taipei City 110301, Taiwan
| | - Chia-Yau Chang
- Hemophilia Center, Taipei Medical University Hospital, Taipei City 110301, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 110, Taiwan
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Taipei Medical University Hospital, Taipei City 110301, Taiwan
| |
Collapse
|
2
|
Huang JH, Chen SH, Liao YM, Kao YC, Ho WL, Chang H, Tsai ML, Lee HL, Kuo CC, Tseng SH, Chang CY, Hsieh KLC, Lu LS, Chen YJ, Chiou JF, Hsieh TH, Liu YR, Hsu W, Li WT, Wu YC, Wu WC, Wang JL, Tsai JJ, Terashima K, Kiyotani C, Wong TT, Miser JS, Liu YL. Feasibility and Toxicity of Interval-Compressed Chemotherapy in Asian Children and Young Adults with Sarcoma. J Pers Med 2023; 13:jpm13040668. [PMID: 37109054 PMCID: PMC10146212 DOI: 10.3390/jpm13040668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/09/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Twelve Asian patients with sarcoma received interval-compressed (ic-) chemotherapy scheduled every 14 days with a regimen of vincristine (2 mg/m2), doxorubicin (75 mg/m2), and cyclophosphamide (1200-2200 mg/m2) (VDC) alternating with a regimen of ifosfamide (9000 mg/m2) and etoposide (500 mg/m2) (IE), with filgrastim (5-10 mcg/kg/day) between cycles. Carboplatin (800 mg/m2) was added for CIC-rearranged sarcoma. The patients were treated with 129 cycles of ic-VDC/IE with a median interval of 19 days (interquartile range [IQR], 15-24 days. Median nadirs (IQR) were neutrophil count, 134 (30-396) × 106/L at day 11 (10-12), recovery by day 15 (14-17) and platelet count, 35 (23-83) × 109/L at day 11 (10-13), recovery by day 17 (14-21). Fever and bacteremia were observed in 36% and 8% of cycles, respectively. The diagnoses were Ewing sarcoma (6), rhabdomyosarcoma (3), myoepithelial carcinoma (1), malignant peripheral nerve sheath tumor (1), and CIC-DUX4 Sarcoma (1). Seven of the nine patients with measurable tumors responded (one CR and six PR). Interval-compressed chemotherapy is feasible in the treatment of Asian children and young adults with sarcomas.
Collapse
Affiliation(s)
- Jia-Hui Huang
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Shu-Huey Chen
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Departments of Pediatrics, Shuang Ho Hospital, Ministry of Health and Welfare, Taipei Medical University, Zhonghe, New Taipei 235, Taiwan
| | - Yu-Mei Liao
- Division of Hematology and Oncology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Yu-Chien Kao
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Pathology, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Wan-Ling Ho
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
| | - Hsi Chang
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Min-Lan Tsai
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Hsin-Lun Lee
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Chia-Chun Kuo
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Health Care Administration, College of Management, Taipei Medical University, Taipei 110, Taiwan
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei 110, Taiwan
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei 111, Taiwan
| | - Sung-Hui Tseng
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei 110, Taiwan
- Neuroscience Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Chia-Yau Chang
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
| | - Kevin Li-Chun Hsieh
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Medical Imaging, Taipei Medical University Hospital, Taipei 110, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Long-Sheng Lu
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan
- International PhD Program in Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan
- Department of Medical Research, Taipei Medical University Hospital, Taipei 110, Taiwan
- Center for Cell Therapy, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan
- International PhD Program for Cell Therapy and Regeneration, Taipei Medical University, Taipei 110, Taiwan
| | - Yin-Ju Chen
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan
- International PhD Program in Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan
- Department of Medical Research, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Jeng-Fong Chiou
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Tsung-Han Hsieh
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei 110, Taiwan
| | - Yun-Ru Liu
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei 110, Taiwan
| | - Wayne Hsu
- Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Wei-Tang Li
- Division of Plastic Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Yu-Chung Wu
- Division of Thoracic Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Wei-Ciao Wu
- Division of Thoracic Surgery, Department of Surgery, Shuang Ho Hospital, Ministry of Health and Welfare, Taipei Medical University, Zhonghe, New Taipei 235, Taiwan
| | - Jinn-Li Wang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Pediatrics, Wan Fang Hospital, Taipei Medical University, Taipei 111, Taiwan
| | - Jia-Jia Tsai
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Keita Terashima
- Children's Cancer Center, National Center for Child Health and Development, Tokyo 157-8535, Japan
| | - Chikako Kiyotani
- Children's Cancer Center, National Center for Child Health and Development, Tokyo 157-8535, Japan
| | - Tai-Tong Wong
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital, Taipei 110, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110, Taiwan
| | - James S Miser
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Pediatrics, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Yen-Lin Liu
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Center for Cell Therapy, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan
| |
Collapse
|
3
|
Wu PC, Chang CY, Ho WL, Lee HL, Su YY, Chang CJ, Hsieh CI, Huang YL, Miser JS, Liu YL. Multidisciplinary team approach for Klippel-Trenaunay syndrome: A case series. Pediatr Neonatol 2023; 64:341-343. [PMID: 37059658 DOI: 10.1016/j.pedneo.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/06/2023] [Accepted: 02/01/2023] [Indexed: 04/16/2023] Open
Affiliation(s)
- Pei-Cin Wu
- Department of Pediatrics, Taipei Medical University Hospital, Taiwan
| | - Chia-Yau Chang
- Department of Pediatrics, Taipei Medical University Hospital, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taiwan; Division of Pediatric Hematology/Oncology, Taipei Medical University Hospital, Taiwan; Pediatric Cancer Program, Taipei Cancer Center, Taipei Medical University, Taiwan
| | - Wan-Ling Ho
- Department of Pediatrics, Taipei Medical University Hospital, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taiwan; Division of Pediatric Hematology/Oncology, Taipei Medical University Hospital, Taiwan; Pediatric Cancer Program, Taipei Cancer Center, Taipei Medical University, Taiwan
| | - Hsin-Lun Lee
- Pediatric Cancer Program, Taipei Cancer Center, Taipei Medical University, Taiwan; Department of Radiation Oncology, Taipei Medical University Hospital, Taiwan
| | - Yi-Yu Su
- Department of Pediatrics, Taipei Medical University Hospital, Taiwan; Division of Pediatric Critical Care Medicine, Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-Jen Chang
- Division of Plastic Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cheng-I Hsieh
- Division of Hematology/Oncology, Department of Medicine, Taipei Medical University Hospital, Taiwan
| | - Yung-Lan Huang
- Department of Pediatrics, Taipei Medical University Hospital, Taiwan; Department of Pediatrics, Taiwan Adventist Hospital, Taipei, Taiwan
| | - James S Miser
- Pediatric Cancer Program, Taipei Cancer Center, Taipei Medical University, Taiwan; Cancer Center, Taipei Medical University Hospital, Taipei, Taiwan; Department of Pediatrics, City of Hope National Medical Center, Duarte, CA, USA
| | - Yen-Lin Liu
- Department of Pediatrics, Taipei Medical University Hospital, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taiwan; Division of Pediatric Hematology/Oncology, Taipei Medical University Hospital, Taiwan; Pediatric Cancer Program, Taipei Cancer Center, Taipei Medical University, Taiwan; TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
4
|
Srivastava A, Rangarajan S, Kavakli K, Klamroth R, Kenet G, Khoo L, You CW, Xu W, Malan N, Frenzel L, Bagot CN, Stasyshyn O, Chang CY, Poloskey S, Qiu Z, Andersson S, Mei B, Pipe SW. Fitusiran prophylaxis in people with severe haemophilia A or haemophilia B without inhibitors (ATLAS-A/B): a multicentre, open-label, randomised, phase 3 trial. The Lancet Haematology 2023; 10:e322-e332. [PMID: 37003278 DOI: 10.1016/s2352-3026(23)00037-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/06/2023] [Accepted: 02/01/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND Fitusiran, a subcutaneous investigational siRNA therapeutic, targets antithrombin with the goal of rebalancing haemostasis in people with haemophilia A or haemophilia B, regardless of inhibitor status. We aimed to evaluate the efficacy and safety of fitusiran prophylaxis in people with severe haemophilia without inhibitors. METHODS This multicentre, open-label, randomised phase 3 study was conducted at 45 sites in 17 countries. Male participants aged at least 12 years with severe haemophilia A or B without inhibitors, who had previously been treated on-demand with clotting factor concentrates, were randomly assigned in a 2:1 ratio to receive 80 mg subcutaneous fitusiran prophylaxis once per month or to continue on-demand clotting factor concentrates for a total of 9 months. Randomisation was stratified by the number of bleeding events in the 6 months before screening (≤10 bleeds and >10 bleeds) and by haemophilia type (haemophilia A or B). The primary endpoint was annualised bleeding rate, analysed in the intention-to-treat analysis set. Safety and tolerability were assessed in the safety analysis set. This trial is registered with ClinicalTrials.gov, NCT03417245, and is complete. FINDINGS Between March 1, 2018, and July 14, 2021, 177 male participants were screened for eligibility and 120 were randomly assigned to receive fitusiran prophylaxis (n=80) or on-demand clotting factor concentrates (n=40). Median follow-up was 7·8 months (IQR 7·8-7·8) in the fitusiran group and 7·8 months (7·8-7·8) in the on-demand clotting factor concentrates group. The median annualised bleeding rate was 0·0 (0·0-3·4) in the fitusiran group and 21·8 (8·4-41·0) in the on-demand clotting factor concentrates group. The estimated mean annualised bleeding rate was significantly lower in the fitusiran prophylaxis group (3·1 [95% CI 2·3-4·3]) than in the on-demand clotting factor concentrates group (31·0 [21·1-45·5]; rate ratio 0·101 [95% CI 0·064-0·159]; p<0·0001). In the fitusiran group, 40 (51%) of 79 treated participants had no treated bleeds compared with two (5%) of 40 participants in the on-demand clotting factor concentrates group. Increased alanine aminotransferase concentration (18 [23%] of 79 participants in the safety analysis set) was the most common treatment-emergent adverse event in the fitusiran group and hypertension (four (10%) of 40 participants) was the most common in the on-demand clotting factor concentrates group. Treatment-emergent serious adverse events were reported in five (6%) participants in the fitusiran group (cholelithiasis [n=2, 3%], cholecystitis [n=1, 1%], lower respiratory tract infection [n=1, 1%], and asthma [n=1, 1%]) and five (13%) participants in the on-demand clotting factor concentrates group (gastroenteritis, pneumonia, suicidal ideation, diplopia, osteoarthritis, epidural haemorrhage, humerus fracture, subdural haemorrhage, and tibia fracture [all n=1, 3%]). No treatment-related thrombosis or deaths were reported. INTERPRETATION In participants with haemophilia A or B without inhibitors, fitusiran prophylaxis resulted in significant reductions in annualised bleeding rate compared with on-demand clotting factor concentrates and no bleeding events in approximately half of participants. Fitusiran prophylaxis shows haemostatic efficacy in both haemophilia A and haemophilia B, and therefore has the potential to be transformative in the management of all people with haemophilia. FUNDING Sanofi.
Collapse
|
5
|
Chang CY, Lai SW, Cheng MM, Ku JT, Hu SH, Liu YL, Tsai JR, Tsai CH, Cheng CN, Chen YC. Real-world bleeding outcomes and product utilization in people with severe-type hemophilia A before and after switching to extended half-life rFVIIIFc prophylaxis therapy. Int J Hematol 2023; 117:378-387. [PMID: 36463568 DOI: 10.1007/s12185-022-03503-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Recombinant factor VIII-Fc (rFVIIIFc) became available in Taiwan in 2018. Before this date, no people with hemophilia A (PwHA) were enrolled in a clinical trial of rFVIIIFc. We investigated changes in bleeding outcomes and product utilization in PwHA switching from rFVIII to rFVIIIFc. METHODS Data were collected for Taiwanese PwHA (severe-type) who switched from rFVIII to rFVIIIFc, including annualized bleeding rate (ABR) and weekly dose consumption 12 months pre-switch and > 6 months post-switch. RESULTS The 51 patients were divided into 3 groups according to their pre-switch treatment: on-demand treatment, intermittent periodic prophylaxis, and regular prophylaxis. In every group, the post-switch median ABR was significantly reduced, with no significant differences between groups. Meanwhile, the post-switch median weekly dose of each group was significantly increased. In 32 patients on pre-switch prophylaxis, switching brought a further reduction in median ABR, associated with a significant increase in median weekly dose. No adverse effects or novel inhibitor development were seen. CONCLUSION This is the first report from Asia on real-world experience of rFVIIIFc, showing that switching to rFVIIIFc prophylaxis led to further reduction in ABR and increase in weekly dose for all patient groups, even those on pre-switch rFVIII prophylaxis.
Collapse
Affiliation(s)
- Chia-Yau Chang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan.,Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Shiue-Wei Lai
- Division of Hematology/Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, No.325, Section 2, Chenggong Road, Nei-Hu 114, Taipei, Taiwan.,Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Mei-Mei Cheng
- Department of Pediatrics, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Jung-Tzu Ku
- Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Shu-Hsia Hu
- Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan.,Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Yen-Lin Liu
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan.,Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Jia-Ruey Tsai
- Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan.,Division of Hematology/Oncology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Chen-Hua Tsai
- Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan.,Division of Hematology/Oncology, Department of Internal Medicine, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Chao-Neng Cheng
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Yeu-Chin Chen
- Division of Hematology/Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, No.325, Section 2, Chenggong Road, Nei-Hu 114, Taipei, Taiwan. .,Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.
| |
Collapse
|
6
|
Tan KT, Benedict SLH, Chang CY, Chidambaram SK, Abd Jamil I, Bahrudin MS, Kandasamy SS, Khor CS. Clinical severity of COVID-19 with omicron variant predominance in relation to vaccination status, age, comorbidities- a single center in Selangor, Malaysia. Med J Malaysia 2022; 77:558-563. [PMID: 36169066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Recently, the rapid surge of reported COVID-19 cases attributed to the Omicron variant of severe acute respiratory syndrome coronavirus (SARS-CoV-2) created an immediate concern across nations. Local information pertaining to the new variant of concern (VOC) is lacking. We aimed to determine the clinical characteristics of COVID-19 during a period of Omicron prevalence among patients hospitalised from February 1 to 21, 2022 at Sungai Buloh Hospital and to estimate the risks of disease progression presumably caused by this variant in association with gender, age, comorbidity, and vaccination status. MATERIALS AND METHODS In this retrospective, singlecentered, retrospective cohort study, all hospitalised adults with laboratory-confirmed COVID-19, aged 18 and above, were recruited from February 1 to 21, 2022. Clinical characteristics, investigations, and outcomes were assessed. RESULTS A total of 2279 patients aged 18 years and above with laboratory-proven COVID-19 were recruited and analysed, excluding 32 patients owing to incomplete data. Majority of the study population had a mean age of 41.8 ± 17.7, was female-predominant (1329/2279, 58.6%), had completed a primary series of vaccination with a booster (1103/2279, 48.4%), and had no underlying medical conditions (1529/2279, 67.4%). The risk of COVID-19-related disease progression was significantly lower in hospitalised patients under the age of 50 who were female, had no comorbidity, and had completed two doses of the primary series with or without a booster. [respectively, OR 7.94 (95% CI 6.16, 10.23); 1.68 (1.34, 2,12); 2.44 (1.85, 3.22); 2.56 (1.65, 3.97), p< 0.001]. CONCLUSION During the period of Omicron prevalence, a favourable outcome of COVID-19 was strongly associated with female gender, age below 50, a comorbidity-free condition, and having completed immunization. With this new observation, it could help improve public health planning and clinical management in response to the emergence of the latest VOC.
Collapse
Affiliation(s)
- K T Tan
- Sungai Buloh Hospital, Department of Internal Medicine, Selangor, Malaysia.
| | - S L H Benedict
- Sungai Buloh Hospital, Department of Internal Medicine, Selangor, Malaysia
| | - C Y Chang
- Sungai Buloh Hospital, Department of Internal Medicine, Selangor, Malaysia
| | - S K Chidambaram
- Sungai Buloh Hospital, Department of Internal Medicine, Selangor, Malaysia
| | - I Abd Jamil
- Sungai Buloh Hospital, Department of Crisis Preparedness and Response Centre, Selangor, Malaysia
| | - M S Bahrudin
- Sungai Buloh Hospital, Department of Crisis Preparedness and Response Centre, Selangor, Malaysia
| | - S S Kandasamy
- Sungai Buloh Hospital, Department of Internal Medicine, Selangor, Malaysia
| | - C S Khor
- Sungai Buloh Hospital, Department of Internal Medicine, Selangor, Malaysia
| |
Collapse
|
7
|
Chang CY, Chin HH, Chin PW, Zaid M. Cold agglutinin-mediated autoimmune haemolytic anaemia associated with COVID-19 infection: a case report. Hong Kong Med J 2022; 28:257-259. [PMID: 35485209 DOI: 10.12809/hkmj219828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- C Y Chang
- Department of Medicine, Hospital Sultanah Aminah, Johor Bahru, Johor, Malaysia
| | - H H Chin
- Department of Medicine, Hospital Enche' Besar Hajjah Kalsom, Kluang, Johor, Malaysia
| | - P W Chin
- Department of Medicine, Hospital Enche' Besar Hajjah Kalsom, Kluang, Johor, Malaysia
| | - M Zaid
- Department of Medicine, Hospital Sultanah Aminah, Johor Bahru, Johor, Malaysia
| |
Collapse
|
8
|
Chang CY, Gan YL, Lio JY, Radhakrishnan AP. Invasive salmonella enteritidis infection complicated by colonic perforations and pancytopenia: A case report. Med J Malaysia 2022; 77:264-266. [PMID: 35338642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Salmonellosis caused by bacterial genus Salmonella is associated with a high morbidity and mortality rate. Salmonellae can be divided into typhoidal serotypes (S. enterica ser. Typhi and S. enterica ser. Paratyphi A) and nontyphoidal Salmonella (NTS) serotypes. The two most common NTS serotypes isolated from human sources were S. enterica ser. Typhimurium and S. enterica ser. Enteritidis. NTS infection can present with diverse clinical manifestations, including gastroenteritis, bacteraemia, septic arthritis, osteomyelitis, and endovascular infection. Intestinal perforation is an extremely rare and potentially fatal complication of severe salmonella infection. Herein, we report a case of invasive S. Enteritidis infection complicated by colonic perforation and pancytopenia. Following a colonic resection, the patient received a prolonged course of antimicrobial therapy and eventually recovered.
Collapse
Affiliation(s)
- C Y Chang
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia.
| | - Y L Gan
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia
| | - J Y Lio
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia
| | - A P Radhakrishnan
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia
| |
Collapse
|
9
|
Liu YL, Tsai ML, Chen CI, Yar N, Tsai CW, Lee HL, Kuo CC, Ho WL, Hsieh KLC, Tseng SH, Miser JS, Chang CY, Chang H, Huang WC, Wong TT, Wu ATH, Yen YC. Atypical Teratoid/Rhabdoid Tumor in Taiwan: A Nationwide, Population-Based Study. Cancers (Basel) 2022; 14:cancers14030668. [PMID: 35158938 PMCID: PMC8833760 DOI: 10.3390/cancers14030668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Atypical teratoid/rhabdoid tumor (AT/RT) is a rare, highly malignant CNS neoplasm with poor prognosis. A retrospective population-based analysis of patients with the diagnosis of AT/RT, registered between 1999 and 2014 in Taiwan, showed that: (1) AT/RT had a higher prevalence in males, in children < 36 months of age, and at infratentorial sites; (2) older age (≥12 months), presence of the tumor in the supratentorial region, use of radiotherapy, chemotherapy, or both were associated with better prognosis compared to surgery or no treatment. These data represent a historical experience with AT/RT in Taiwan and may inform risk stratification and clinical trial design. Abstract Background: Atypical teratoid/rhabdoid tumor (AT/RT) is a rare, highly aggressive embryonal brain tumor most commonly presenting in young children. Methods: We performed a nationwide, population-based study of AT/RT (ICD-O-3 code: 9508/3) in Taiwan using the Taiwan Cancer Registry Database and the National Death Certificate Database. Results: A total of 47 cases (male/female = 29:18; median age at diagnosis, 23.3 months (IQR: 12.5–87.9)) were diagnosed with AT/RT between 1999 and 2014. AT/RT had higher prevalence in males (61.70%), in children < 36 months (55.32%), and at infratentorial or spinal locations (46.81%). Survival analyses demonstrated that patients ≥ 3 years of age (n = 21 (45%)) had a 5y-OS of 41% (p < 0.0001), treatment with radiotherapy only (n = 5 (11%)) led to a 5y-OS of 60%, treatment with chemotherapy with or without radiotherapy (n = 27 (62%)) was associated with a 5y-OS of 45% (p < 0.0001), and patients with a supratentorial tumor (n = 11 (23%)) had a 5y-OS of 51.95%. Predictors of better survival on univariate Cox proportional hazard modeling and confirmed with multivariate analysis included older age (≥1 year), supratentorial sites, and the administration of radiotherapy, chemotherapy, or both. Gender had no effect on survival. Conclusion: Older age, supratentorial site, and treatment with radiotherapy, chemotherapy, or both significantly improves the survival of patients with AT/RT.
Collapse
Affiliation(s)
- Yen-Lin Liu
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (Y.-L.L.); (M.-L.T.); (W.-L.H.); (C.-Y.C.); (H.C.)
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Min-Lan Tsai
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (Y.-L.L.); (M.-L.T.); (W.-L.H.); (C.-Y.C.); (H.C.)
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
| | - Chang-I Chen
- Department of Health Care Administration, College of Management, Taipei Medical University, Taipei 110, Taiwan; (C.-I.C.); (N.Y.); (C.-C.K.)
| | - Noi Yar
- Department of Health Care Administration, College of Management, Taipei Medical University, Taipei 110, Taiwan; (C.-I.C.); (N.Y.); (C.-C.K.)
| | - Ching-Wen Tsai
- Health Data Analytics and Statistics Center, Office of Data Science, Taipei Medical University, Taipei 110, Taiwan;
| | - Hsin-Lun Lee
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110, Taiwan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Chia-Chun Kuo
- Department of Health Care Administration, College of Management, Taipei Medical University, Taipei 110, Taiwan; (C.-I.C.); (N.Y.); (C.-C.K.)
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 110, Taiwan
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei 110, Taiwan
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei 110, Taiwan
| | - Wan-Ling Ho
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (Y.-L.L.); (M.-L.T.); (W.-L.H.); (C.-Y.C.); (H.C.)
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan
- Department of Pediatrics, Shin Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan
| | - Kevin Li-Chun Hsieh
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Medical Imaging, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Sung-Hui Tseng
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei 110, Taiwan;
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - James S. Miser
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
- Department of Pediatrics, City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
- Cancer Center, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Chia-Yau Chang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (Y.-L.L.); (M.-L.T.); (W.-L.H.); (C.-Y.C.); (H.C.)
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
| | - Hsi Chang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (Y.-L.L.); (M.-L.T.); (W.-L.H.); (C.-Y.C.); (H.C.)
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Wen-Chang Huang
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei 110, Taiwan;
| | - Tai-Tong Wong
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Neurological Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-L.L.); (K.L.-C.H.); (J.S.M.); (T.-T.W.)
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Neuroscience Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital, Taipei Neuroscience Institute, Taipei Medical University, Taipei 110, Taiwan
| | - Alexander T. H. Wu
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- The Ph.D. Program of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
- Clinical Research Center, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei 114, Taiwan
- Correspondence: (A.T.H.W.); (Y.-C.Y.)
| | - Yu-Chun Yen
- Health Data Analytics and Statistics Center, Office of Data Science, Taipei Medical University, Taipei 110, Taiwan;
- Correspondence: (A.T.H.W.); (Y.-C.Y.)
| |
Collapse
|
10
|
Affiliation(s)
- C Y Chang
- Medical Department, Hospital Selayang, Selayang-Kepong Highway, 68100 Batu Caves, Selangor, Malaysia
| |
Collapse
|
11
|
Lai SW, Chang CY, Cheng SN, Hu SH, Lai CY, Chen YC. A Comparative Evaluation of an Automated Functional Assay for Von Willebrand Factor Activity in Type 1 Von Willebrand Disease. Int J Gen Med 2021; 14:5167-5174. [PMID: 34511999 PMCID: PMC8421256 DOI: 10.2147/ijgm.s321605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/25/2021] [Indexed: 11/23/2022] Open
Abstract
Background von Willebrand factor ristocetin cofactor activity (VWF:RCo) is the standard functional assay used for von Willebrand disease (VWD) diagnosis. However, it has some drawbacks including being time consuming and labor intensive and having high inter-laboratory variability. The HemosIL VWF activity assay has the advantages of both high speed and automation. The purpose of this study was to prospectively compare these two functional assays for type 1 VWD detection. Methods Plasma samples from 108 subjects were assessed in this study. HemosIL VWF activity was measured with the HemosIL latex immunoturbidimetric commercial kits by the ACL TOP coagulation analyzer. VWF:RCo was measured by platelet aggregation method. Pearson correlation analyses were performed to estimate the correlation of HemosIL VWF activity with VWF:RCo. Receiver-operator characteristic (ROC) curve analysis was used to evaluate the performance of the two diagnostic tests. Results The correlation coefficient between VWF:RCo and HemosIL VWF activity was 0.874 overall and was 0.761 and 0.811 in the cohorts of type 1 VWD and non-VWD, respectively. The sensitivity and specificity of HemosIL VWF activity assay for type 1 VWD identification were 94.7% and 80.0%, respectively, and the ROC curve of HemosIL VWF activity was larger than that of VWF:RCo (0.928 vs 0.863, p=0.0138). Finally, the positive and negative predictive values of the HemosIL VWF activity assay for type 1 VWD detection were 72.0% and 96.6%, respectively. Conclusion Our results demonstrate that the HemosIL VWF activity assay was an effective method for type 1 VWD screening and diagnosis. It carried good sensitivity and specificity and had a higher ROC curve than VWF:RCo besides showing good correlation with VWF:RCo. With its advantages of greater speed and automated performance, these results suggest that the HemosIL VWF activity assay was reliable and precise in the clinical setting.
Collapse
Affiliation(s)
- Shiue-Wei Lai
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.,Division of Hematology/Oncology, Department of Internal Medicine, Tri-service General Hospital, National Defense Medical Center, Taipei, Taiwan.,School of Medicine, Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chia-Yau Chang
- School of Medicine, Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Pediatric Hematology/Oncology, Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Shin-Nan Cheng
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.,Department of Pediatrics, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan.,Department of Pediatrics, National Defense Medical Center, Taipei, Taiwan
| | - Shu-Hsia Hu
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Chung-Yu Lai
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei City, 114, Taiwan
| | - Yeu-Chin Chen
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.,Division of Hematology/Oncology, Department of Internal Medicine, Tri-service General Hospital, National Defense Medical Center, Taipei, Taiwan
| |
Collapse
|
12
|
Chen YC, Chang CY, Cheng SN, Pan RY, Shih YL, Li TY, Wang SH. Evolution of congenital haemophilia care in Taiwan. J Formos Med Assoc 2021; 121:582-591. [PMID: 34362614 DOI: 10.1016/j.jfma.2021.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/04/2021] [Accepted: 07/15/2021] [Indexed: 10/20/2022] Open
Abstract
Haemophilia care in Taiwan has come a long way over the past 35 years, from the absence of specialised haemophilia treatment centres before 1984 to the establishment of treatment centers in the majority of medical centers, the listing of haemophilia as a catastrophic illness with full treatment reimbursement by the Taiwan National Health Insurance (NHI), and the implementation of full NHI coverage for prophylaxis therapy. This has led to outcome improvements such as reduced bleed-related morbidity and mortality, fewer viral infections, and enhanced overall multi-modality care. Most people with haemophilia (PWH) are now able to live normal, active lives. Early diagnosis has improved through increased awareness, physician education, and prenatal diagnosis; while comprehensive care, including state of the art rehabilitation and orthopaedic management for haemophilic arthropathy, eradication therapy for chronic hepatitis C, and better treatments for human immunodeficiency virus, allows PWH to enjoy a better quality of life and improved survival. Efforts are now being made to raise prophylaxis rates through full NHI reimbursement and the use of extended half-life recombinant factor products. Overall, Taiwan has made great strides in haemophilia care and we would like to share these experiences for the benefit of all healthcare providers involved in haemophilia care.
Collapse
Affiliation(s)
- Yeu-Chin Chen
- Division of Hematology/Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.
| | - Chia-Yau Chang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Hemophilia Center, Division of Pediatric Hematology/Oncology, Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Shin-Nan Cheng
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Tungs' Taichung MetroHarbor Hospital, Department of Pediatrics, Taichung, Taiwan
| | - Ru-Yu Pan
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Department of Orthopedics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Lueng Shih
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Tsung-Ying Li
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Department of Rehabilitation, Tri-Service General Hospital, National Defence Medical Center, Taipei, Taiwan
| | - Sheng-Hao Wang
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan; Department of Orthopedics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| |
Collapse
|
13
|
Chang CY. Peripheral T-cell lymphoma presenting with pleural effusion. QJM 2021; 114:55. [PMID: 32330273 DOI: 10.1093/qjmed/hcaa140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C Y Chang
- Department of General Medicine, Kapit Hospital, Jalan Mamora, Kapit, Sarawak 96800, Malaysia
| |
Collapse
|
14
|
Liu YL, Chen SM, Lee HL, Huang JH, Chen SH, Kao YC, Chang H, Tsai ML, Tseng SH, Hsieh KLC, Chang CY, Wang JL, Miser JS, Wong TT. RARE-45. SARCOMAS INVOLVING THE CENTRAL NERVOUS SYSTEM AT INITIAL PRESENTATION IN CHILDREN AND YOUNG ADULTS: A CASE SERIES. Neuro Oncol 2020. [PMCID: PMC7715135 DOI: 10.1093/neuonc/noaa222.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Sarcomas of bone, soft tissue, or neural origin may occasionally invade the central nervous system (CNS), causing diagnostic and therapeutic challenges. We aim to investigate the clinical features of sarcomas involving the CNS at initial presentation. During 2015/01–2019/12, nine consecutive patients (4 Males and 5 Females) younger than 30 years of age treated at a University Healthcare System in Northern Taiwan were included. The median age was 8.7 years (range, 2–24 years); diagnoses were Ewing Sarcoma with EWSR1 rearrangements (n=4), CIC-NUTM1 Sarcoma (n=1), Osteosarcoma (n=2), Malignant Peripheral Nerve Sheath Tumor (MPNST; n=1), and extramedullary myeloid sarcoma (n=1). The tumors originated from the skull (n=1), dura (n=1), vertebra (n=4), spinal canal (n=1), or extra-CNS sites (n=2). Four patients had metastases (1 Ewing sarcoma, 2 osteosarcoma, and 1 extramedullary myeloid sarcoma). The main symptom at diagnosis was facial/eye pain (n=2), back pain (n=3), arm weakness (n=1), or gait disturbance (n=3). Upfront neurosurgical decompression (n=7) or urgent radiotherapy (n=1) was performed in most patients. At a median follow-up duration of 20.1 months, the overall survival rate was 70%. All patients with Ewing sarcoma (n=4) and CIC-NUTM1 sarcoma (n=1) achieved Complete Response after surgery, interval-compressed chemotherapy, radiotherapy, and adjuvant chemotherapy. Patients with stage IV osteosarcoma (n=2) had Partial Response; the patients with MPNST and extraskeletal myeloid sarcoma died of Progressive Disease at 18 and 3 months after diagnosis, respectively. We conclude that timely decompression, early diagnosis, and histology-driven multimodality treatment are effective strategies in managing sarcomas involving the CNS.
Collapse
Affiliation(s)
- Yen-Lin Liu
- Taipei Medical University, Taipei, Taiwan
- Taipei Medical University Hospital, Taipei, Taiwan
| | - Shu-Mei Chen
- Taipei Medical University Hospital, Taipei, Taiwan
| | - Hsin-Lun Lee
- Taipei Medical University Hospital, Taipei, Taiwan
- Taipei Cancer Center, Taipei, Taiwan
| | | | - Shu-Huey Chen
- Taipei Medical University, Taipei, Taiwan
- Shuang Ho Hospital, New Taipei, Taiwan
| | - Yu-Chien Kao
- Taipei Medical University, Taipei, Taiwan
- Shuang Ho Hospital, New Taipei, Taiwan
| | - Hsi Chang
- Taipei Medical University Hospital, Taipei, Taiwan
| | - Min-Lan Tsai
- Taipei Medical University Hospital, Taipei, Taiwan
| | | | | | | | - Jinn-Li Wang
- Taipei Medical University, Taipei, Taiwan
- Taipei Municipal Wan Fang Hospital, Taipei, Taiwan
| | - James S Miser
- Taipei Medical University, Taipei, Taiwan
- City of Hope, Duarte, CA, USA
| | | |
Collapse
|
15
|
Chang CY, Husseini JS, Moreira A, Simeone FJ, Yee AJ, Bredella MA, Hasserjian R. CT-guided bone marrow aspirations and biopsies: retrospective study and comparison with blind procedures. Skeletal Radiol 2020; 49:1285-1294. [PMID: 32232499 DOI: 10.1007/s00256-020-03423-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To compare the pathology results of CT-guided and blind bone marrow aspirations and biopsies. METHODS Ninety-eight consecutive CT-guided biopsies and 98 age- and gender-matched blind (non-CT-guided) posterior iliac crest bone marrow aspirations and biopsies performed in 2017 were reviewed for adequacy of core biopsies and aspirate smears. CT procedure images and CT abdomen/pelvis images were reviewed to evaluate anatomic features of the posterior ilium and soft tissues. Statistical analysis was performed using a T test, Fisher exact test, and Kruskal-Wallis test. RESULTS There was no significant difference in the age and gender of the two groups (p > 0.05). However, the CT-guided group had a higher BMI (p = 0.0049) and posterior soft tissue thickness (p = 0.0016). More CT-guided biopsy samples (CT 93 (95%); blind 77 (79%); p = 0.0006) and aspirate smears (CT 90 (92%); blind 78 (80%); p = 0.042) were categorized as adequate. The CT-guided group had longer core lengths (CT 1.4 ± 0.6 (range 0.3-3.5) cm; blind 1.0 ± 0.60 (range 0-2.6) cm; p = 0.0001). Overall, 131/164 (80%) of the cases had at least one of the described features (slanted posterior ilium (angle > 30°), 30%; rounded posterior ilium, 20%; thick posterior ilium cortex, 13%; focal lesion in posterior ilium, 12%; prior procedure in posterior ilium, 5%; posterior soft tissue thickness > 3 cm, 40%). CONCLUSION CT-guided bone marrow procedures were more likely to result in both adequate aspirate smears and biopsy samples and longer core lengths when compared with blind procedures.
Collapse
Affiliation(s)
- C Y Chang
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA. .,Harvard Medical School, Cambridge, MA, USA.
| | - J S Husseini
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Cambridge, MA, USA
| | - A Moreira
- Department of Radiology, Centro Hospitalar São João, Porto, Portugal
| | - F J Simeone
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - A J Yee
- Harvard Medical School, Cambridge, MA, USA.,Division of Hematology and Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - M A Bredella
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Cambridge, MA, USA
| | - R Hasserjian
- Harvard Medical School, Cambridge, MA, USA.,Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| |
Collapse
|
16
|
Lin TC, Chen SH, Wu CC, Chang CY. Successful bleeding control of refractory hemothorax in two hemophilia A patients with high-titer inhibitors. Pediatr Neonatol 2020; 61:361-363. [PMID: 32331973 DOI: 10.1016/j.pedneo.2020.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 11/13/2019] [Accepted: 02/05/2020] [Indexed: 10/25/2022] Open
Affiliation(s)
- Ting-Chih Lin
- Department of Pediatrics, Taiwan Adventist Hospital, Taipei, Taiwan.
| | - Shu-Huey Chen
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taiwan; Hemophilia Center, Division of Pediatric Hematology/Oncology, Department of Pediatrics, Shuang Ho Hospital, Taipei, Taiwan.
| | - Chung-Che Wu
- Division of Neurosurgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taiwan; Division of Neurosurgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan.
| | - Chia-Yau Chang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taiwan; Hemophilia Center, Division of Pediatric Hematology/Oncology, Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan.
| |
Collapse
|
17
|
Chang CY, Perng CL, Cheng SN, Hu SH, Wu TY, Lin SY, Chen YC. Deep intronic variant c.5999-277G>A of F8 gene may be a hot spot mutation for mild hemophilia A patients without mutation in exonic DNA. Eur J Haematol 2019; 103:47-55. [PMID: 31063249 DOI: 10.1111/ejh.13242] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 12/01/2022]
Abstract
BACKGROUND In 10%-18% of mild-type hemophilia A (HA) patients, mutations cannot be found by routine DNA analysis. OBJECTIVE We aimed to identify the genetic defects by mRNA analysis of F8 gene in mild HA patients without mutation in exonic DNA. PATIENTS AND METHODS From 2006 to 2016, we identified F8 exon mutations in 39 of 49 mild HA patients using routine genetic testing. We then evaluated the 10 remaining patients from six unrelated families without exonic DNA mutation by performing cDNA sequence analysis. RESULTS Nine of the 10 (90%) patients were confirmed to have F8 gene mutation. Eight patients from four unrelated families were notably found to have presence of an aberrant 675-bp fragment. Sequencing of this fragment showed that there were two separate new alternative splicing exons of 35 bp and 55 bp within intron 18, which formed a 90-bp insertion between exon 18 and exon 19 (E18ins90bpE19) in the mRNA. Based on direct sequencing, this alternative splicing transcript appears to have resulted from deep intronic variant c.5999-277G>A of intron 18. CONCLUSIONS Our study suggests that deep intronic variant of c.5999-277G>A may be a hot spot mutation for mild hemophilia patients without mutation in exonic DNA.
Collapse
Affiliation(s)
- Chia-Yau Chang
- School of Medicine, Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Pediatric Hematology/Oncology, Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Cherng-Lih Perng
- Division of Clinical Pathology, Department of Pathology, Tri-Service General Hospital, Taipei, Taiwan.,Graduate Institute of Pathology, National Defense Medical Center, Taipei, Taiwan
| | - Shin-Nan Cheng
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.,Department of Pediatrics, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan.,Department of Pediatrics, National Defense Medical Center, Taipei, Taiwan
| | - Shu-Hsia Hu
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Tzu-Ying Wu
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Shyr-Yi Lin
- School of Medicine, Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Gastroenterology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yeu-Chin Chen
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan.,Division of Hematology/Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| |
Collapse
|
18
|
Chang CY, Li TY, Cheng SN, Pan RY, Cheng CN, Wang HJ, Hu SH, Chen YC. Obesity and overweight in patients with hemophilia: Prevalence by age, clinical correlates, and impact on joint bleeding. J Chin Med Assoc 2019; 82:289-294. [PMID: 30946208 DOI: 10.1097/jcma.0000000000000047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND The prevalence of obesity in patients with hemophilia (PWH) varies among different ethnicities, and its influence on joint bleeding and hemophilic arthropathy has not been studied in Taiwan population. We explored the prevalence and clinical correlates of obesity and the impact of body mass index (BMI) on annual joint bleeding rate (AJBR) and hemophilic arthropathy in PWH in Taiwan. METHODS We retrospectively collected clinical information on 140 severe/40 moderate PWH from 2006 to 2014. The patients' median age was 31.5 years, ranged from 6 to 73 years. Their BMI, 6 index joints score by Pettersson scoring, AJBR, and other clinical data were analyzed. RESULTS The prevalence of overweight and obesity by age group was 7.1% in PWH aged ≤10 years, and rapidly increased to 34.5% in PWH aged 11 to 18 years, 46.7% in PWH aged 18 to 29 years, 61.8% in PWH aged 30 to 39 years, 60.6% in PWH aged 40 to 49 years, and 48% in PWH aged ≥50 years, respectively. Two peak rates were 72.7% in PWH aged 35 to 44 years and 66.7% in PWH aged >65 years. Age, HCV infection, knee score, elbow score, and total 6 index joints scores were found to correlate positively with BMI. However, subtype and severity of hemophilia, ankle scores, HBV and HIV infection did not correlate with BMI. Finally, BMI was found to correlate positively with AJBR in both adult and pediatric PWH. CONCLUSION The prevalence of overweight and obesity in adolescent and adult PWH was higher than those in the general male population in Taiwan, which rapidly increased with age to peak in PWH aged 35 to 44 years and >65 years. High index joint score, with the exception of ankle scores, positively correlated with high BMI. Further, BMI and obesity also had positive correlation with AJBR in PWH. To our knowledge, this is the first study examining these associations in PWH in Taiwan.
Collapse
Affiliation(s)
- Chia-Yau Chang
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, ROC
- Division of Pediatric Hematology/Oncology, Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan, ROC
| | - Tsung-Ying Li
- Department of Rehabilitation, Tri-Service General Hospital, Taipei, Taiwan, ROC
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan, ROC
| | - Shin-Nan Cheng
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan, ROC
- Department of Pediatrics, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan, ROC
- Department of Pediatrics, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Ru-Yu Pan
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan, ROC
- Department of Orthopedics, Tri-Service General Hospital, Taipei, Taiwan, ROC
| | - Chao-Neng Cheng
- Department of Pediatrics, National Cheng Kung University Hospital, Taichung, Taiwan, ROC
| | - Hung-Jung Wang
- Division of Pediatric Hematology/Oncology, Hemophilia Center, Taipei Medical University Hospital, Taipei, Taiwan, ROC
- Department of Medical Imaging, Taipei Medical University Hospital, Taipei, Taiwan, ROC
| | - Shu-Hsia Hu
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan, ROC
| | - Yeu-Chin Chen
- Hemophilia Care and Research Center, Tri-Service General Hospital, Taipei, Taiwan, ROC
- Division of Hematology/Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| |
Collapse
|
19
|
Chang CY, Abujaber S, Pany MJ, Obermeyer Z. Are vital sign abnormalities associated with poor outcomes after emergency department discharge? Acute Med 2019; 18:88-95. [PMID: 31127797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To examine association between vital sign abnormalities in the emergency department (ED) and early death after ED discharge, we performed a matched case-control study. Conditional logistic regression showed that presence of any vital sign abnormality at ED discharge was significantly associated with over three-fold increase in likelihood of death within 15 days of ED discharge (OR: 3.06, 95%CI: 2.81-4.48). Even small changes were associated with increased risk: every additional beat increase in heart rate conferred additional risk (OR: 1.04, 95%CI: 1.02-1.06), while every additional oxygen saturation percentage point was protective (0.89, 0.80-0.98). However, none of these vital sign abnormalities was a good predictor of early death; there was poor discrimination and substantial overlap in values between cases and controls.
Collapse
Affiliation(s)
- C Y Chang
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - S Abujaber
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - M J Pany
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Z Obermeyer
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| |
Collapse
|
20
|
Chang CY, Yuan FG. Extraction of guided wave dispersion curve in isotropic and anisotropic materials by Matrix Pencil method. Ultrasonics 2018; 89:143-154. [PMID: 29803979 DOI: 10.1016/j.ultras.2018.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 05/07/2018] [Accepted: 05/09/2018] [Indexed: 06/08/2023]
Abstract
Guided wave dispersion curves in isotropic and anisotropic materials are extracted automatically from measured data by Matrix Pencil (MP) method investigating through k-t or x-ω domain with a broadband signal. A piezoelectric wafer emits a broadband excitation, linear chirp signal to generate guided waves in the plate. The propagating waves are measured at discrete locations along the lines for one-dimensional laser Doppler vibrometer (1-D LDV). Measurements are first Fourier transformed into either wavenumber-time k-t domain or space-frequency x-ω domain. MP method is then employed to extract the dispersion curves explicitly associated with different wave modes. In addition, the phase and group velocity are deduced by the relations between wavenumbers and frequencies. In this research, the inspections for dispersion relations on an aluminum plate by MP method from k-t or x-ω domain are demonstrated and compared with two-dimensional Fourier transform (2-D FFT). Other experiments on a thicker aluminum plate for higher modes and a composite plate are analyzed by MP method. Extracted relations of composite plate are confirmed by three-dimensional (3-D) theoretical curves computed numerically. The results explain that the MP method not only shows more accuracy for distinguishing the dispersion curves on isotropic material, but also obtains good agreements with theoretical curves on anisotropic and laminated materials.
Collapse
Affiliation(s)
- C Y Chang
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, United States; Integrated System Health Management Laboratory ISHM, National Institute of Aerospace, 100 Exploration Way, Hampton, VA 23666, United States
| | - F G Yuan
- Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, United States; Integrated System Health Management Laboratory ISHM, National Institute of Aerospace, 100 Exploration Way, Hampton, VA 23666, United States.
| |
Collapse
|
21
|
Fan CC, Chiu YC, Liu C, Lai WW, Cheng CH, Lin DL, Li GR, Lo YH, Chang CW, Tsai CC, Chang CY. The Impact of the Shallow-Trench Isolation Effect on Flicker Noise of Source Follower MOSFETs in a CMOS Image Sensor. J Nanosci Nanotechnol 2018; 18:4217-4221. [PMID: 29442765 DOI: 10.1166/jnn.2018.15239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The flicker noise of source follower transistors is the dominant noise source in image sensors. This paper reports a systematic study of the shallow trench isolation effect in transistors with different sizes under high temperature conditions that correspond to the quantity of empty defect sites. The effects of shallow trench isolation sidewall defects on flicker noise characteristics are investigated. In addition, the low-frequency noise and subthreshold swing degrade simultaneously in accordance to the device gate width scaling. Both serious subthreshold leakage and considerable noise can be attributed to the high trap density near the STI edge. Consequently, we propose a coincidental relationship between the noise level and the subthreshold characteristic; its trend is identical to the experiments and simulation results.
Collapse
Affiliation(s)
- C C Fan
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - Y C Chiu
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - C Liu
- Department of Electro-Physics, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - W W Lai
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
| | - C H Cheng
- Department of Mechatronic Engineering, National Taiwan Normal University, Taipei, 106, Taiwan
| | - D L Lin
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - G R Li
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - Y H Lo
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - C W Chang
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - C C Tsai
- Himax Technologies, Inc., Tainan City 74148, Taiwan
| | - C Y Chang
- Department of Electronics Engineering, National Chiao Tung University, Hsinchu City 30010, Taiwan
| |
Collapse
|
22
|
Ohshio G, Yamaki K, Imamura T, Suwa H, Chang CY, Wada H, Sueno Y, Imamura M. Distribution of the Carbohydrate Antigens, Du-Pan-2 and Ca19-9, in Tumors of the Lung. Tumori 2018; 81:67-73. [PMID: 7754546 DOI: 10.1177/030089169508100116] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims and background The carbohydrate chains of malignant cells appear to be related to oncofetal differentiation. The serum levels of CA19-9 have been reported to be evaluated in some patients with lung carcinomas, however, the distribution of carbohydrate antigens were not precisely described. We have investigated in this study the distribution of DU-PAN-2 and CA19-9 antigens in lung tumors. Methods Ninety five specimens of lung tumors were selected from surgical specimens. The expression of DU-PAN-2 and CA19-9 were studied by immunohystochemical techniques. The relationship between the expression of these antigens and the classification or the differentiation degree of the tumors were examined. Results DU-PAN-2 or CA19-9 antigens were detected in 41 (54%) and 45 (59%) cases of the 76 malignant epithelial tumors investigated. These antigens were detected in all types of malignant epithelial tumors, including squamous cell carcinomas, where they were mainly localized to the entire cell surface of malignant cells. In adenocarcinomas, large cell carcinomas and small cell carcinomas, however, these antigens were commonly detected both on the cell membrane and in the cytoplasm. There was positive correlation between the degree of differentiation and DU-PAN-2, but not CA19-9 expression. Among the non-epithelial tumors investigated, those antigens were detected in pulmonary blastomas but not in mesotheliomas. Conclusions Immunohistochemical studies for DU-PAN-2 and CA19-9 are useful for defining characteristics of the lung tumors. DU-PAN-2 could be a marker for differentiating between malignant epithelial tumors and mesotheliomas.
Collapse
Affiliation(s)
- G Ohshio
- Department of Surgery and Thoracic Surgery, Kyoto University, Japan
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Choi D, Wishon MJ, Chang CY, Citrin DS, Locquet A. Multistate intermittency on the route to chaos of a semiconductor laser subjected to optical feedback from a long external cavity. Chaos 2018; 28:011102. [PMID: 29390638 DOI: 10.1063/1.5013332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We observe experimentally two regimes of intermittency on the route to chaos of a semiconductor laser subjected to optical feedback from a long external cavity as the feedback level is increased. The first regime encountered corresponds to multistate intermittency involving two or three states composed of several combinations of periodic, quasiperiodic, and subharmonic dynamics. The second regime is observed for larger feedback levels and involves intermittency between period-doubled and chaotic regimes. This latter type of intermittency displays statistical properties similar to those of on-off intermittency.
Collapse
Affiliation(s)
- Daeyoung Choi
- Georgia Tech-CNRS UMI 2958, Georgia Tech Lorraine, 2 Rue Marconi, F-57070 Metz, France
| | - Michael J Wishon
- Georgia Tech-CNRS UMI 2958, Georgia Tech Lorraine, 2 Rue Marconi, F-57070 Metz, France
| | - C Y Chang
- Georgia Tech-CNRS UMI 2958, Georgia Tech Lorraine, 2 Rue Marconi, F-57070 Metz, France
| | - D S Citrin
- Georgia Tech-CNRS UMI 2958, Georgia Tech Lorraine, 2 Rue Marconi, F-57070 Metz, France
| | - A Locquet
- Georgia Tech-CNRS UMI 2958, Georgia Tech Lorraine, 2 Rue Marconi, F-57070 Metz, France
| |
Collapse
|
24
|
Yen HJ, Chen SH, Chang TY, Yang CP, Lin DT, Hung IJ, Lin KH, Chen JS, Hsiao CC, Chang TT, Chang TK, Peng CT, Lin MT, Jaing TH, Liu HC, Jou ST, Lu MY, Cheng CN, Sheen JM, Chiou SS, Hung GY, Wu KH, Yeh TC, Wang SC, Chen RL, Chang HH, Yang YL, Chen SH, Cheng SN, Chang YH, Chen BW, Hsieh YL, Huang FL, Ho WL, Wang JL, Chang CY, Chao YH, Lin PC, Chen YC, Liao YM, Lin TH, Shih LY, Liang DC. Pediatric acute lymphoblastic leukemia with t(1;19)/TCF3-PBX1 in Taiwan. Pediatr Blood Cancer 2017; 64. [PMID: 28436581 DOI: 10.1002/pbc.26557] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 02/16/2017] [Accepted: 02/23/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND In childhood acute lymphoblastic leukemia (ALL), t(1;19)(q23;p13.3) with TCF3-PBX1 fusion is one of the most frequent translocations. Historically, it has been associated with poor prognosis. Intensive treatment, however, has improved its outcome. We determined the outcome of children with this genotype treated with contemporary intensive chemotherapy in Taiwan. PROCEDURE In Taiwan Pediatric Oncology Group 2002 ALL studies, genotypes were determined by cytogenetic analysis and/or reverse transcriptase polymerase chain reaction assay. Based on presenting features, immunophenotype and genotype, patients were assigned to one of the three risk groups: standard risk (SR), high risk (HR), or very high risk (VHR). The patients with t(1;19)/TCF3-PBX1 were treated in the HR arm receiving more intensive chemotherapy. The outcomes of patients with t(1;19)/TCF3-PBX1 were compared to that of patients with other subtypes of B-precursor ALL (B-ALL). RESULTS Of the 1,129 patients with B-ALL, 64 (5.7%) had t(1;19)/TCF3-PBX1; 51 of whom were treated in the HR arm, but 11 were treated in the VHR and 2 in the SR arm because of physician's preference. As a group, 64 patients with t(1;19)/TCF3-PBX1 had similar 5-year event-free survival (83.3 ± 4.8%) as those with TEL-AML1 (85.2 ± 3.4%, P = 0.984) or those with hyperdiploidy >50 (84.0 ± 3.1%, P = 0.748). The cumulative risk of any (isolated plus combined) central nervous system relapse among patients with t(1;19)/TCF3-PBX1 (8.7 ± 3.8%) tended to be higher than that of patients with TEL-AML1 (5.8 ± 2.3%, P = 0.749) or those with hyperdiploidy (4.1 ± 1.8%, P = 0.135), albeit the differences did not reach statistical significance. CONCLUSIONS With contemporary intensive chemotherapy, children with t(1;19)/TCF3-PBX1 fared as well as those with favorable genotypes (TEL-AML1 or hyperdiploidy).
Collapse
Affiliation(s)
- Hsiu-Ju Yen
- Department of Pediatrics, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Shih-Hsiang Chen
- Department of Hematology-Oncology, Chang Gung Children's Hospital-Linkou, Taoyuan, Taiwan
| | - Tsung-Yen Chang
- Department of Hematology-Oncology, Chang Gung Children's Hospital-Linkou, Taoyuan, Taiwan
| | - Chao-Ping Yang
- Department of Hematology-Oncology, Chang Gung Children's Hospital-Linkou, Taoyuan, Taiwan
| | - Dong-Tsamn Lin
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Iou-Jih Hung
- Department of Hematology-Oncology, Chang Gung Children's Hospital-Linkou, Taoyuan, Taiwan
| | - Kai-Hsin Lin
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Jiann-Shiuh Chen
- Department of Pediatrics, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Chih-Cheng Hsiao
- Department of Pediatrics, Chang Gung Children's Hospital-Kaohsiung, Kaohsiung, Taiwan
| | - Tai-Tsung Chang
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Te-Kao Chang
- Department of Pediatrics, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ching-Tien Peng
- Department of Pediatric Hemato/Oncology, Children's Hospital of China Medical University, Taichung, Taiwan
| | - Ming-Tsan Lin
- Department of Pediatrics, Changhua Christian Hospital, Changhua, Taiwan
| | - Tang-Her Jaing
- Department of Hematology-Oncology, Chang Gung Children's Hospital-Linkou, Taoyuan, Taiwan
| | - Hsi-Che Liu
- Department of Pediatrics, Mackay Memorial Hospital, and Mackay Medical College, Taipei, Taiwan
| | - Shiann-Tarng Jou
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Meng-Yao Lu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Chao-Neng Cheng
- Department of Pediatrics, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Jiunn-Ming Sheen
- Department of Pediatrics, Chang Gung Children's Hospital-Kaohsiung, Kaohsiung, Taiwan
| | - Shyh-Shin Chiou
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Giun-Yi Hung
- Department of Pediatrics, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Kang-Hsi Wu
- Department of Pediatric Hemato/Oncology, Children's Hospital of China Medical University, Taichung, Taiwan
| | - Ting-Chi Yeh
- Department of Pediatrics, Mackay Memorial Hospital, and Mackay Medical College, Taipei, Taiwan
| | - Shih-Chung Wang
- Department of Pediatrics, Changhua Christian Hospital, Changhua, Taiwan
| | - Rong-Long Chen
- Department of Pediatrics, Koo Foundation Sun-Yat-Sen Cancer Center, Taipei, Taiwan
| | - Hsiu-Hao Chang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Yung-Li Yang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Shu-Huey Chen
- Department of Pediatrics, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan
| | - Shin-Nan Cheng
- Department of Pediatrics, Tri-Service General Hospital, Taipei, Taiwan
| | - Yu-Hsiang Chang
- Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Bow-Wen Chen
- Department of Pediatrics, Koo Foundation Sun-Yat-Sen Cancer Center, Taipei, Taiwan
| | - Yuh-Lin Hsieh
- Department of Pediatrics, Cathay General Hospital, Taipei, Taiwan
| | - Fang-Liang Huang
- Department of Pediatrics, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wan-Ling Ho
- Department of Pediatrics, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan.,School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Jinn-Li Wang
- Department of Pediatrics, Wanfang Hospital Taipei Medical University, Taipei, Taiwan
| | - Chia-Yau Chang
- Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yu-Hua Chao
- Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Pei-Chin Lin
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yu-Chieh Chen
- Department of Pediatrics, Chang Gung Children's Hospital-Kaohsiung, Kaohsiung, Taiwan
| | - Yu-Mei Liao
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Tung-Huei Lin
- Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Lee-Yung Shih
- Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan.,Chang Gung University, Taoyuan, Taiwan
| | - Der-Cherng Liang
- Department of Pediatrics, Mackay Memorial Hospital, and Mackay Medical College, Taipei, Taiwan
| |
Collapse
|
25
|
Le AK, Zhao C, Hoang JK, Tran SA, Chang CY, Jin M, Nguyen NH, Yasukawa LA, Zhang JQ, Weber SC, Garcia G, Nguyen MH. Ethnic disparities in progression to advanced liver disease and overall survival in patients with chronic hepatitis C: impact of a sustained virological response. Aliment Pharmacol Ther 2017; 46:605-616. [PMID: 28766727 DOI: 10.1111/apt.14241] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/04/2017] [Accepted: 07/08/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Chronic hepatitis C (CHC) can lead to cirrhosis and hepatocellular carcinoma (HCC). A sustained virological response (SVR) is associated with improved outcomes, however, its impact on different ethnic groups is unknown. AIM To evaluate ethnic differences in the natural history of CHC and the impact of SVR. METHODS We conducted a cohort study of 8039 consecutive adult CHC patients seen at two medical centres in California between January 1997 and June 2016. Individual chart review confirmed CHC diagnosis. RESULTS Asian and Hispanic but not African American patients had significantly higher cirrhosis and HCC incidence than Caucasians. On multivariate analysis, Hispanic ethnicity was independently associated with increased cirrhosis (adjusted HR 1.37, CI, confidence interval 1.10-1.71, P=.006) and HCC risk (adjusted HR 1.47, CI 1.13-1.92, P=.004) compared to Caucasian. Asian ethnicity had a significant association with cirrhosis (adjusted HR 1.28, CI 1.02-1.61, P=.034) and HCC risk (adjusted HR 1.29, CI 0.94-1.77, P=.025). In patients who achieved SVR, Hispanic ethnicity was no longer independently associated with cirrhosis (adjusted HR 1.76, CI 0.66-4.71, P=.26) or HCC (adjusted HR 1.05, CI 0.27-4.08, P=.94); nor was Asian ethnicity (adjusted HR 0.62, CI 0.21-1.82, P=.38 for cirrhosis; 2.01, CI 0.63-6.36, P=.24 for HCC). Similar findings were observed with overall survival among the ethnicities by SVR status. CONCLUSION Hispanic and Asian ethnicity was independently associated with increased cirrhosis and HCC risk. Achieving an SVR eliminates the ethnic disparity in liver disease progression and overall survival between Hispanic and Asian vs Caucasian CHC patients.
Collapse
Affiliation(s)
- A K Le
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - C Zhao
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Department of Cirrhosis, Institute of Liver Disease, Shuguang Hospital, Shanghai, China
| | - J K Hoang
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - S A Tran
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Stanford University, Palo Alto, CA, USA
| | - C Y Chang
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - M Jin
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Department of Epidemiology and Biostatistics, Zhejiang University, Hangzhou, China
| | - N H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Department of Medicine, University of California, San Diego, San Diego, CA, USA
| | - L A Yasukawa
- Center for Clinical Informatics, Stanford University School of Medicine, Palo Alto, CA, USA
| | - J Q Zhang
- Chinese Hospital, San Francisco, CA, USA
| | - S C Weber
- Center for Clinical Informatics, Stanford University School of Medicine, Palo Alto, CA, USA
| | - G Garcia
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - M H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| |
Collapse
|
26
|
Abstract
For dental orthodontic applications, NiTi wires are used under bending conditions in the oral environment for a long period. The purpose of this study was to investigate the effect of bending stress on the corrosion of NiTi wires using potentiodynamic and potentiostatic tests in artificial saliva. The results indicated that bending stress induces a higher corrosion rate of NiTi wires in passive regions. It is suggested that the passive oxide film of specimens would be damaged under bending conditions. Auger electron spectroscopic analysis showed a lower thickness of passive films on stressed NiTi wires compared with unstressed specimens in the passive region. By scanning electron microscopy, localized corrosion was observed on stressed Sentalloy specimens after a potentiodynamic test at pH 2. In conclusion, this study indicated that bending stress changed the corrosion properties and surface characteristics of NiTi wires in a simulated intra-oral environment.
Collapse
Affiliation(s)
- I H Liu
- Institute of Oral Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | | | | | | |
Collapse
|
27
|
Lutchman G, Nguyen NH, Chang CY, Ahmed A, Daugherty T, Garcia G, Kumari R, Gupta S, Doshi D, Nguyen MH. Effectiveness and tolerability of simeprevir and sofosbuvir in nontransplant and post-liver transplant patients with hepatitis C genotype 1. Aliment Pharmacol Ther 2016; 44:738-46. [PMID: 27506182 DOI: 10.1111/apt.13761] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/16/2016] [Accepted: 07/21/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Hepatitis C virus genotype 1a (HCV-1a), prior treatment, cirrhosis and post-transplant status are historically associated with poor treatment responses. The new oral direct-acting agents appear to be effective and safe in these patients. AIMS To evaluate the effectiveness and tolerability of simeprevir and sofosbuvir in a diverse real-life cohort of patients, including difficult-to-treat patients. METHODS We conducted a retrospective cohort study in 198 consecutive patients with hepatitis C genotype 1 (148 nontransplant, 50 post transplant), who were treated with simeprevir and sofosbuvir for 12 weeks between December 2013 and December 2014. Primary outcome was sustained virological response with undetectable HCV RNA 12 weeks after completion of therapy (SVR12). Risk factors evaluated for lack of SVR12 included HCV 1a (vs. 1b), prior treatment (vs. none), and cirrhosis (vs. no cirrhosis). RESULTS SVR12 rates were similar in non- and post-transplant settings, 82% and 88%, respectively. There were no significant differences in adverse events in patients regardless of cirrhosis or transplant status. On multivariate analysis also inclusive of gender and liver transplant status, negative predictors of SVR12 were having at least 2 or 3 risk factors (OR 0.30, 95% CI 0.10-0.87, P = 0.027 or 0.29, 95% CI 0.09-0.85, P = 0.025, respectively). CONCLUSION Simeprevir and sofosbuvir combination is a safe and effective regimen for the treatment of non- and post-transplant patients with traditional risk factors for poor treatment response, unless more than 2 difficult-to-treat risk factors are present.
Collapse
Affiliation(s)
- G Lutchman
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - N H Nguyen
- School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - C Y Chang
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - A Ahmed
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - T Daugherty
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - G Garcia
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - R Kumari
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| | - S Gupta
- Medical Affairs, Janssen Scientific Affairs, Titusville, NJ, USA
| | - D Doshi
- Health Economics & Outcomes Research, Janssen Scientific Affairs, Titusville, NJ, USA
| | - M H Nguyen
- Gastroenterology and Hepatology, Liver Transplant Program, Stanford University Medical Center, Palo Alto, CA, USA
| |
Collapse
|
28
|
Chiou SY, Lee RC, Chi KH, Chia-Hsien Cheng J, Chiang JH, Chang CY. The triple-phase CT image appearance of post-irradiated livers. Acta Radiol 2016; 42:526-31. [PMID: 11552892 DOI: 10.1080/028418501127347115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objective To evaluate the sequential CT appearance of the liver after hepatic irradiation and to investigate the correlation between CT findings and radiation-induced hepatic injury. Material and Methods: The triple-phase CT images of 18 patients with hepatocellular carcinomas (HCC) after hepatic irradiation were retrospectively reviewed (in total 41 CT studies). The high-dose region within the liver was defined as the area receiving more than 90% of the prescribed irradiation dose. The mean radiation dose was 55.5 Gy. Density changes and patterns of enhancement in the high-dose region were classified as three types: type I, constant low-density change in all phases; type II, low-density change in both pre-contrast and arterial phases, and iso-density change in the portal phase; type III, low- or iso-density change in the pre-contrast phase, low- or high-density change in the arterial phase, and persistent high-density change in the portal phase. The interval between completion of radiotherapy and the CT examinations ranged from 9 to 469 days, with a mean of 147 days. Results: Nine of the 41 CT studies presented with type I, 9 with type II, and 16 with type III CT findings. The mean interval between completion of radiotherapy and the appearance of types I, II, and III CT findings were 74, 183, and 220 days, respectively. The interval was significantly shorter for type I findings than for type II and type III. The difference in interval was not significant between type II and type III. A type I finding with constant low-density change in the high-dose region of the liver was the most common pattern of CT findings within the first 3 months after hepatic irradiation. Either types II or III findings were frequently seen after 3 months. Conclusion: The sequential CT appearance and the density changes may indicate correlation with the pathogenesis of veno-occlusive disease.
Collapse
Affiliation(s)
- S Y Chiou
- Department of Radiology, Veterans General Hospital-Taipei, Taipei, Taiwan
| | | | | | | | | | | |
Collapse
|
29
|
Choi D, Wishon MJ, Barnoud J, Chang CY, Bouazizi Y, Locquet A, Citrin DS. Low-frequency fluctuations in an external-cavity laser leading to extreme events. Phys Rev E 2016; 93:042216. [PMID: 27176302 DOI: 10.1103/physreve.93.042216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 06/05/2023]
Abstract
We experimentally investigate the dynamical regimes of a laser diode subject to external optical feedback in light of extreme-event (EE) analysis. We observe EEs in the low-frequency fluctuations (LFFs) regime. This number decreases to negligible values when the laser transitions towards fully developed coherence collapse as the injection current is increased. Moreover, we show that EEs observed in the LFF regime are linked to high-frequency pulsing events observed after a power dropout. Finally, we prove experimentally that the observation of EEs in the LFF regimes is robust to changes in operational parameters.
Collapse
Affiliation(s)
- Daeyoung Choi
- UMI 2958 Georgia Tech-CNRS, Georgia Tech Lorraine, 2 Rue Marconi F-57070, Metz, France
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0250, USA
| | - Michael J Wishon
- UMI 2958 Georgia Tech-CNRS, Georgia Tech Lorraine, 2 Rue Marconi F-57070, Metz, France
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0250, USA
| | - J Barnoud
- UMI 2958 Georgia Tech-CNRS, Georgia Tech Lorraine, 2 Rue Marconi F-57070, Metz, France
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0250, USA
| | - C Y Chang
- UMI 2958 Georgia Tech-CNRS, Georgia Tech Lorraine, 2 Rue Marconi F-57070, Metz, France
- School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430, USA
| | - Y Bouazizi
- UMI 2958 Georgia Tech-CNRS, Georgia Tech Lorraine, 2 Rue Marconi F-57070, Metz, France
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0250, USA
| | - A Locquet
- UMI 2958 Georgia Tech-CNRS, Georgia Tech Lorraine, 2 Rue Marconi F-57070, Metz, France
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0250, USA
| | - D S Citrin
- UMI 2958 Georgia Tech-CNRS, Georgia Tech Lorraine, 2 Rue Marconi F-57070, Metz, France
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0250, USA
| |
Collapse
|
30
|
Yen TL, Wu MP, Chung CL, Yang WB, Jayakumar T, Geraldine P, Chou CM, Chang CY, Lu WJ, Sheu JR. Novel synthetic benzimidazole-derived oligosaccharide, M3BIM, prevents ex vivo platelet aggregation and in vivo thromboembolism. J Biomed Sci 2016; 23:26. [PMID: 26887315 PMCID: PMC4756413 DOI: 10.1186/s12929-016-0245-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/05/2016] [Indexed: 01/09/2023] Open
Abstract
Background Thrombus formation, a phenomenon primarily related to increased platelet activation, plays a key role in cardiovascular and cerebrovascular diseases. Although the established antiplatelet agents, such as aspirin and clopidogrel, have been shown to be beneficial in treating thromboembolic diseases, they have considerable limitations. Hence, the development of more effective and safe antithrombotic agents is necessary to satisfy a substantial unmet clinical need. In recent years, the favorable properties of imidazole-related drugs have prompted medicinal chemists to synthesize numerous novel therapeutic agents. The chemical structure of the benzimidazole backbone has proven antiplatelet properties. Moreover, synthetic oligosaccharides have exhibited antiplatelet properties. Therefore, we developed a new aldo-benzimidazole-derived oligosaccharide compound, M3BIM, for achieving a stronger antiplatelet effect than the drugs which are being used in clinical aspects. We investigated the effects of M3BIM on platelet activation ex vivo and its antithrombotic activity in vivo. Results M3BIM (10–50 μM) exhibited a more potent activity in inhibiting platelet aggregation stimulated by collagen than it did in inhibiting that stimulated by thrombin in washed human platelets. The M3BIM treatment revealed no cytotoxicity in zebrafish embryos, even at the highest concentration of 100 μM. In addition, M3BIM inhibited the phosphorylation of phospholipase Cγ2, protein kinase C (PKC), and mitogen-activated protein kinases (MAPKs; extracellular signal-regulated kinase 2 and c-Jun N-terminal kinase 1), and markedly reduced the ATP-release reaction and intracellular calcium mobilization in collagen-activated platelets. By contrast, M3BIM showed no effects on either collagen-induced p38 MAPK and Akt phosphorylation or phorbol 12, 13-dibutyrate-induced PKC activation and platelet aggregation. Moreover, the M3BIM treatment substantially prolonged the closure time in human whole blood, and increased the occlusion time in mesenteric microvessels and attenuated cerebral infarction in mice. For the study of anticoagulant activities, M3BIM showed no significant effects in the prolongation of activated partial thromboplastin time and prothrombin time in mice. Conclusion The findings of our study suggest that M3BIM is a potential therapeutic agent for preventing or treating thromboembolic disorders.
Collapse
Affiliation(s)
- Ting-Lin Yen
- Graduate Institute of Medical Sciences and Department of Pharmacology, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei, 110, Taiwan
| | - Ming-Ping Wu
- Graduate Institute of Medical Sciences and Department of Pharmacology, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei, 110, Taiwan.,Department of Obstetrics and Gynecology, Chi-Mei Medical Center, Tainan, Taiwan
| | - Chi-Li Chung
- Department of Medical Research and Translational Laboratory, Research Department, Taipei Medical University Hospital, 252 Wu-Hsing St., Taipei, 110, Taiwan
| | - Wen-Bin Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Thanasekaran Jayakumar
- Graduate Institute of Medical Sciences and Department of Pharmacology, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei, 110, Taiwan
| | - Pitchairaj Geraldine
- Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - Chih-Ming Chou
- Department of Biochemistry, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chia-Yau Chang
- Hemophilia Center, Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Wan-Jung Lu
- Graduate Institute of Medical Sciences and Department of Pharmacology, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei, 110, Taiwan. .,Department of Medical Research and Translational Laboratory, Research Department, Taipei Medical University Hospital, 252 Wu-Hsing St., Taipei, 110, Taiwan.
| | - Joen-Rong Sheu
- Graduate Institute of Medical Sciences and Department of Pharmacology, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei, 110, Taiwan.
| |
Collapse
|
31
|
Lo PH, Huang YF, Chang CC, Yeh CC, Chang CY, Cherng YG, Chen TL, Liao CC. Risk and mortality of gastrointestinal hemorrhage in patients with thrombocytopenia: Two nationwide retrospective cohort studies. Eur J Intern Med 2016; 27:86-90. [PMID: 26604107 DOI: 10.1016/j.ejim.2015.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 10/08/2015] [Accepted: 10/13/2015] [Indexed: 12/12/2022]
Abstract
INTRODUCTION The association between thrombocytopenia (TP) and gastrointestinal hemorrhage was not completely understood. The purpose of this study is to evaluate the risk of gastrointestinal hemorrhage and post-hemorrhage mortality in patients with TP. METHODS Using the Taiwan National Health Insurance Research Database, we identified 1033 adults aged ≥18 years diagnosed with TP in 2000-2003. Non-TP cohort consisted of 10,330 adults randomly selected and matched by age and sex from the same dataset. Incident events of gastrointestinal hemorrhage occurring after TP from January 1, 2000, through December 31, 2008, were ascertained from medical claims. Adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) of gastrointestinal hemorrhage associated with TP were calculated. Another nested cohort study consisted of 27,369 patients with hospitalization due to gastrointestinal hemorrhage between January 1, 2004, and December 31, 2010. We calculated the adjusted odds ratios (ORs) and 95% CIs of 30-day mortality after gastrointestinal hemorrhage in patients with and without TP during admission. RESULTS The incidences of gastrointestinal hemorrhage for people with and without TP were 14.5 and 5.07 per 1000 person-years, respectively (P<0.0001). Compared to people without TP, patients with TP had increased risk of gastrointestinal hemorrhage (HR, 2.61; 95% CI, 2.05-3.32). In the nested cohort study, TP was associated with post-hemorrhage mortality (OR, 1.98; 95% CI, 1.09-3.59). CONCLUSION Patients with TP showed higher risks of gastrointestinal hemorrhage and post-hemorrhage mortality. Our findings suggest the urgency of preventing and managing gastrointestinal hemorrhage by a multidisciplinary medical team for this specific population.
Collapse
Affiliation(s)
- Po-Han Lo
- Department of Anesthesiology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yu-Feng Huang
- Department of Anesthesiology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chuen-Chau Chang
- School of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan; Health Policy Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Chun-Chieh Yeh
- Department of Surgery, China Medical University Hospital, Taipei, Taiwan; Department of Surgery, University of IL, Chicago, USA
| | - Chia-Yau Chang
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yih-Giun Cherng
- Department of Anesthesiology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ta-Liang Chen
- School of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan; Health Policy Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Chien-Chang Liao
- School of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan; Health Policy Research Center, Taipei Medical University Hospital, Taipei, Taiwan; School of Chinese Medicine, China Medical University, Taichung, Taiwan.
| |
Collapse
|
32
|
Venmathi Maran BA, Soh HY, Hwang UW, Chang CY, Myoung JG. First records of parasitic copepods (Crustacea, Siphonostomatoida) from marine fishes in Korea. Trop Biomed 2015; 32:352-364. [PMID: 26691264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The knowledge of the biodiversity of parasitic copepods in South Korea is increasing. Interestingly we report here, some parasitic copepods considered as the first record of findings from Korea. Nine species of parasitic copepods (Siphonostomatoida) including six genera of three different families [Caligidae (7), Lernaeopodidae (1), Lernanthropidae (1)] were recovered from eight species of wild fishes in Korea: 1) Caligus hoplognathi Yamaguti & Yamasu, 1959 (♀, ♂) from the body surface of barred knifejaw Oplegnathus fasciatus (Temminck & Schlegel); 2) Caligus lagocephali Pillai, 1961 (♀) from the gills of panther puffer Takifugu pardalis (Temminck & Schlegel); 3) Euryphorus brachypterus (Gerstaecker, 1853) (♀, ♂) from the opercular cavity of Atlantic bluefin tuna Thunnus thynnus (Linnaeus); 4) Euryphorus nordmanni Milne Edwards, 1840 (♀, ♂) from the opercular cavity of common dolphin fish Coryphaena hippurus Linnaeus; 5) Gloiopotes huttoni (Thomson) (♀, ♂) from the body surface of black marlin Istiompax indica (Cuvier); 6) Lepeophtheirus hapalogenyos Yamaguti & Yamasu, 1959 (♀) from the gill filaments of O. fasciatus; 7) Lepeophtheirus sekii Yamaguti, 1936 (♀, ♂) from the body surface of red seabream Pagrus major (Temminck & Schlegel); 8) Brachiella thynni Cuvier, 1830 (♀) from the body surface of longfin tuna or albacore Thunnus alalunga (Bonnaterre); 9) Lernanthropinus sphyraenae (Yamaguti & Yamasu, 1959) (♀) from the gill filaments of moon fish Mene maculata (Bloch & Schneider). Since the female was already reported in Korea, it is a new record for the male of C. hoplognathi. A checklist for the parasitic copepods of the family Caligidae, Lernaeopodidae and Lernanthropidae of Korea is provided.
Collapse
Affiliation(s)
- B A Venmathi Maran
- Biological Oceanography & Marine Biology Division, Korea Institute of Ocean Science & Technology, 787 Haean-ro, Ansan 426-744, Republic of Korea
| | - H Y Soh
- Faculty of Marine Technology, Chonnam National University, 50 Daehak-ro, Yeosu, Jeollanam-do 550-749, Republic of Korea
| | - U W Hwang
- Department of Biology, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Buk-gu, Deagu 702-701, Republic of Korea
| | - C Y Chang
- Department of Biology, College of Natural Science, Daegu University, Gyeongsan, Gyeongsangbuk-do 712-714, Republic of Korea
| | - J G Myoung
- Biological Oceanography & Marine Biology Division, Korea Institute of Ocean Science & Technology, 787 Haean-ro, Ansan 426-744, Republic of Korea
| |
Collapse
|
33
|
Tseng TM, Chen PY, Tseng H, Lin HC, Chang CY, Hung SH. An unexpected route for otolaryngology bacterial contamination with a Venturi atomizer. Rhinology 2014; 52:156-161. [PMID: 24932628 DOI: 10.4193/rhino13.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The Venturi-principle atomizer is a commonly used device in otolaryngology practices. The purpose of this study is to evaluate the possible route of bacterial contamination from the nasal vestibule to the atomizer tip through the jet airflow created during the use of the Venturi atomizer. METHODS Thirty nostrils from 15 enrolled volunteers were tested. The aerosols generated by spraying sterilized saline into the nostrils were collected using a specially made aerosol-collecting nozzle cap. The collected samples were sent for bacterial culture, and nasal vestibular swab cultures were performed for comparison. RESULTS In the aerosol-exposed group, 18 out of 30 samples (60%) were positive for bacterial growth, confirming the bacterial contamination from the nasal vestibule to the atomizer tip through the reverse jet airflow. The bacteria species in 8 of the 18 positive samples were identical to those from the nasal swab culture results from the same nostril. CONCLUSION In ordinary otolaryngology practices, there are significant risks for bacterial contamination from the nasal vestibule to the tip of the Venturi atomizer even without direct contact. Clinicians must be more aware of this pattern of contamination, which has not been reported in the existing literature.
Collapse
|
34
|
Yang HS, Chen IC, Lee YT, Lee KC, Chuang YC, Chang CY, Wei J. Cardiac transplantation and concomitant coronary artery bypass grafting: our experiences in 11 cases. Transplant Proc 2014; 46:900-2. [PMID: 24767376 DOI: 10.1016/j.transproceed.2013.11.127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 11/07/2013] [Indexed: 11/19/2022]
Abstract
INTRODUCTION The shortage of donor hearts for transplantation could be alleviated by including the hearts of older donors. Previous literature revealed similar early and medium-term survival outcomes compared with those of younger donors. This study presents our experience with patients who underwent orthotopic heart transplantation and concomitant coronary artery bypass grafting at our institution. METHODS We present our experience with 11 patients with end-stage cardiomyopathy (8 men and 3 women) undergoing orthotopic heart transplantation and concomitant coronary artery bypass grafting from September 2002 to November 2011 at our institute. RESULTS All 11 donor organs would otherwise have been rejected, depriving potential recipients of organ transplantation. Two patients received concurrent 2-coronary-artery bypass, and the other 9 patients received concurrent single-coronary-artery bypass during orthotopic heart transplantation. All patients had an uneventful postoperative course, with follow-up completed 3 to 128 months after cardiac transplantation and concomitant coronary artery bypass grafting surgery. CONCLUSIONS Our experiences suggest that donor hearts requiring coronary artery bypass grafting, which form a small but significant donor subgroup, can be used effectively and safely when matched to the recipients' age and medical condition.
Collapse
Affiliation(s)
- H S Yang
- Heart Center, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C
| | - I C Chen
- Heart Center, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C
| | - Y T Lee
- Heart Center, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C
| | - K C Lee
- Heart Center, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C
| | - Y C Chuang
- Heart Center, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C
| | - C Y Chang
- Heart Center, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C
| | - J Wei
- Heart Center, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C.
| |
Collapse
|
35
|
Lin CJ, Wu TH, Lin CH, Hung SC, Chiu CF, Liu MJ, Teng MMH, Chang FC, Guo WY, Chang CY. Can iterative reconstruction improve imaging quality for lower radiation CT perfusion? Initial experience. AJNR Am J Neuroradiol 2013; 34:1516-21. [PMID: 23578678 DOI: 10.3174/ajnr.a3436] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Initial results using IR for CT of the head showed satisfactory subjective and objective imaging quality with a 20-40% radiation dose reduction. The aim of our study was to compare the influence of IR and FBP algorithms on perfusion parameters at standard and lowered doses of CTP. MATERIALS AND METHODS Forty patients with unilateral carotid stenosis post-carotid stent placement referred for follow-up CTP were divided into 2 groups (tube currents were 100 mAs in group A and 80 mAs in group B). Datasets were reconstructed with IR and FBP algorithms; and SNRs of gray matter, white matter, and arterial and venous ROIs were compared. CBF, CBV, and MTT means and SNRs were evaluated by using linear regression, and qualitative imaging scores were compared across the 2 algorithms. RESULTS The mean effective radiation dose of group B (2.06 mSv) was approximately 20% lower than that of group A (2.56 mSv). SNRs for ROIs in the dynamic contrast-enhanced images were significantly higher than those for the FBP images. Correlations of the SNRs for CBF, CBV, and MTT across the 2 algorithms were moderate (R² = 0.46, 0.23, and 0.44, respectively). ROIs in gray matter rather than the IR algorithm predicted increasing SNRs in all CBF, CBV, and MTT maps. Two cases of significant restenosis were confirmed in both algorithms. CBV, CBF, and MTT imaging scores did not differ significantly across algorithms or groups. CONCLUSIONS Lower dose CTP (20% below normal dose) without IR can effectively identify oligemic tissue in poststenting follow-up. IR does not alter the absolute values or increase the SNRs of perfusion parameters. Other methods should be attempted to improve SNRs in settings with low tube currents.
Collapse
Affiliation(s)
- C J Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Wang KW, Chueh LL, Wang MH, Huang YT, Fang BH, Chang CY, Fang MC, Chou JY, Hsieh SC, Wan CH. Multiplex polymerase chain reaction assay for the detection of minute virus of mice and mouse parvovirus infections in laboratory mice. Lab Anim 2013; 47:116-21. [PMID: 23492514 DOI: 10.1177/0023677213478298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Mouse parvoviruses are among the most prevalent infectious pathogens in contemporary mouse colonies. To improve the efficiency of routine screening for mouse parvovirus infections, a multiplex polymerase chain reaction (PCR) assay targeting the VP gene was developed. The assay detected minute virus of mice (MVM), mouse parvovirus (MPV) and a mouse housekeeping gene (α-actin) and was able to specifically detect MVM and MPV at levels as low as 50 copies. Co-infection with the two viruses with up to 200-fold differences in viral concentrations can easily be detected. The multiplex PCR assay developed here could be a useful tool for monitoring mouse health and the viral contamination of biological materials.
Collapse
Affiliation(s)
- K W Wang
- Graduate Institute of Veterinary Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Chang CC, Chang HC, Wu CH, Chang CY, Liao CC, Chen TL. Adverse postoperative outcomes in surgical patients with immune thrombocytopenia. Br J Surg 2013; 100:684-92; discussion 693. [DOI: 10.1002/bjs.9065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2012] [Indexed: 01/09/2023]
Abstract
Abstract
Background
Patients with immune thrombocytopenia (ITP) are likely to have various medical co-morbidities, yet their global features regarding adverse postoperative outcomes and use of medical resources when undergoing major surgery are unknown. The objective of this study was to validate whether ITP is an independent risk factor for adverse postoperative outcomes, and to explore the potential clinical predictors of outcomes after major surgery among patients with ITP.
Methods
A retrospective population-based cohort study was conducted using Taiwan's National Health Insurance Research Database, controlling for preoperative co-morbidities by means of multiple logistic regression. Major postoperative complication and mortality rates, and in-hospital medical costs were analysed.
Results
The study included 11 085 surgical patients with ITP and 44 340 controls without ITP matched for sex, age, and type of surgery and anaesthesia. Surgical patients with ITP had a higher risk of postoperative death (odds ratio (OR) 1·89, 95 per cent confidence interval 1·57 to 2·27), and overall postoperative complications (OR 1·47, 1·39 to 1·56), and increased hospital stay (OR 1·90, 1·80 to 2·01), admission to the intensive care unit (OR 1·73, 1·63 to 1·83) and medical costs (OR 1·89, 1·79 to 1·99). Amount of preoperative platelet and/or red blood cell transfusion, emergency visits and admission to hospital for ITP care were identified as risk factors for adverse postoperative outcomes.
Conclusion
Patients with ITP undergoing surgery are at increased risk of adverse perioperative events, particularly if blood or blood product transfusion are required preoperatively, or the procedure is done as an emergency.
Collapse
Affiliation(s)
- C C Chang
- Department of Anaesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
- Department of Anaesthesiology, Taipei Medical University, Taipei, Taiwan
| | - H C Chang
- Department of Anaesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
- Department of Anaesthesiology, Taipei Medical University, Taipei, Taiwan
| | - C H Wu
- Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - C Y Chang
- Department of Paediatrics, Division of Paediatric Haematology/Oncology, Taipei Medical University Hospital, and Graduate Institute of Clinical Medicine, College of Medicine, Taipei, Taiwan
| | - C C Liao
- Department of Anaesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
- Department of Anaesthesiology, Taipei Medical University, Taipei, Taiwan
| | - T L Chen
- Department of Anaesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
- Department of Anaesthesiology, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|
38
|
Liao EC, Chen JT, Chao ML, Yu SC, Chang CY, Chu WS, Tsai JJ. Nonadverse effects on allergenicity of isopentenyltransferase-transformed broccoli. J Investig Allergol Clin Immunol 2013; 23:112-119. [PMID: 23654078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND Genetically modified organisms (GMOs) provide modern agriculture with improvements in efficiency and the benefits of enhanced food production; however, the potential impact of GMOs on human health has not yet been clarified. OBJECTIVE To investigate the allergenicity of isopentenyltransferase (ipt)-transformed broccoli compared with non-GM broccoli. METHODS Sera from allergic individuals were used to identify the allergenicity of GM and non-GM broccoli. Immunoglobulin (Ig) binding of different lines of GM and non-GM broccoli was identified using immunoblotting, enzyme-linked immunosorbent assay, and the histamin release assay. RESULTS Positive reactions to broccoli (Brassica Oleracea) were observed in 7.02% of individuals. Specific IgE to broccoli and total IgE fro allergic individuals were well correlated. The different tests performed showed no significant differences in the allergenicity of conventionally raised and GM broccoli, indicating the absence of unexpected effects on allergenicity in ipt-transformed plants. Using Western blot analysis we detected heterogeneous IgE-reactive allergenic components in broccoli-allergic sera, but no significant differences between GM an non-GM broccoli were observed in serum from the same patients. CONCLUSIONS Our study demonstrates that there are no differences between GM (ipt-transformed) broccoli and non-GM broccoli, as determined by specific IgE in sera from broccoli-allergic patients. This indicates that there were no unexpected effects on allergenicity in this GM broccoli.
Collapse
Affiliation(s)
- E C Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | | | | | | | | | | | | |
Collapse
|
39
|
Wei J, Sue SH, Lee YT, Chang CY. Combined heart transplantation and total replacement of thoracic aorta in Marfan's syndrome with recurrent aortic dissection: a case report. Transplant Proc 2012; 44:1174-5. [PMID: 22564657 DOI: 10.1016/j.transproceed.2012.02.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
It is extremely rare for a patient to need simultaneous heart transplantation (HTx) and replacement of the thoracic aorta. A 23-year-old woman with Marfan's syndrome underwent Bentall's operation and replacement of the ascending aorta (AsA) due to a type A aortic dissection (AD) in August 2001. In March 2005, she began to experience dyspnea on exertion and was found to have a huge pseudoaneurysm at the aortic root, which had caused dehiscence of the aortic conduit. In July 2009, she suffered acute chest pain followed by hypotension and cold sweating. The computed tomography (CT) scan showed a recurrent dissection with a long intimal tear extending from the arch to the mid-portion of the descending thoracic aorta (DTA). Due to technical difficulties in the repair of the aortic root, she was placed on the HTx waiting list. The next day, she received a donor heart and underwent combined HTx and total replacement of the thoracic aorta. Explantation of the heart improved the exposure of the DTA. With the use of a vascular ring connector (Vasoring), the operation was successfully performed without need for a blood transfusion. The patient was still well at 2 years after the operation. Simultaneous replacement of the heart and the whole segment of the thoracic aorta is technically possible in Marfan patients who are complicated with aortic dissection.
Collapse
Affiliation(s)
- J Wei
- Heart Centre, Cheng-Hsin General Hospital, Taipei, Taiwan, R.O.C.
| | | | | | | |
Collapse
|
40
|
Johir MAH, Vigneswaran S, Sathasivan A, Kandasamy J, Chang CY. Effect of organic loading rate on organic matter and foulant characteristics in membrane bio-reactor. Bioresour Technol 2012; 113:154-160. [PMID: 22206913 DOI: 10.1016/j.biortech.2011.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 11/30/2011] [Accepted: 12/01/2011] [Indexed: 05/31/2023]
Abstract
In this study, the influence of organic loading rate (OLR) on the performance of a membrane bio-reactor (MBR) was investigated. The MBR was operated with 6 different OLRs between 0.5 and 3.0 kg COD/m(3)d. The hydrodynamic parameters of the MBR were kept constant. The hydraulic retention time and sludge retention time were kept at 8h and 40 d respectively. From the experimental investigation, it was found that the removal efficiency of DOC, COD and NH(4)-N decreased when OLRs were increased from 0.5 to 3.0 kg COD/m(3)d. Higher OLRs of 2.75-3.0 kg COD/m(3)d resulted in a higher transmembrane pressure development. The fractionation of organic matters showed more hydrophilic substances with higher OLRs. A detailed organic matter characterization of membrane foulant, soluble microbial product and extracellular polymeric substances showed that bio-polymers type substances together with humic acid and lower molecular neutral and acids were responsible for membrane fouling.
Collapse
Affiliation(s)
- M A H Johir
- Faculty of Engineering and Information Technology, University of Technology, Sydney, Broadway, NSW 2007, Australia
| | | | | | | | | |
Collapse
|
41
|
Lin CJ, Hung SC, Guo WY, Chang FC, Luo CB, Beilner J, Kowarschik M, Chu WF, Chang CY. Monitoring peri-therapeutic cerebral circulation time: a feasibility study using color-coded quantitative DSA in patients with steno-occlusive arterial disease. AJNR Am J Neuroradiol 2012; 33:1685-90. [PMID: 22499839 DOI: 10.3174/ajnr.a3049] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Intracranial hemodynamics are important for management of SOAD. This study aimed to monitor peri-stent placement intracranial CirT of patients with SOAD. MATERIALS AND METHODS Twenty-five patients received stent placement for extracranial ICA stenosis, and 34 patients with normal CirT were recruited as controls. Their color-coded DSAs were used to define the Tmax of selected intravascular ROI. A total of 20 ROIs of the ICA, OphA, ACA, MCA, FV, PV, OV, SSS, SS, IJV, and MCV were selected. rTmax was defined as the Tmax at the selected region of interest minus Tmax at the cervical segment of the ICA (I1 on AP view and IA on lateral view). rTmax of the PV was defined as intracranial CirT. Intergroup and intragroup longitudinal comparisons of rTmax were performed. RESULTS rTmax values of the normal cohorts were as follows: ICA-AP, 0.12; ICA-LAT, 0.10; A1, 0.28; A2, 0.53; A3, 0.81; M1, 0.40; M2, 0.80; M3, 0.95; OphA, 0.35; FV, 4.83; PV, 5.11; OV, 5.17; SSS, 6.16; SS, 6.51; IJV, 6.81; and MCV, 3.86 seconds. Before stent placement, the rTmax values of arterial ROIs, except A3 and M3, were prolonged compared with values from control subjects (P < .05). None of the rTmax of any venous ROIs in the stenotic group was prolonged with significance. After stent placement, the rTmax of all arterial ROIs shortened significantly, except A1and M3. Poststenting rTmax was not different from the control group. CONCLUSIONS Without extra contrast medium and radiation dosages, color-coded quantitative DSA enables real-time monitoring of peri-therapeutic intracranial CirT in patients with SOAD .
Collapse
Affiliation(s)
- C J Lin
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Yen CH, Teng MMH, Yuan WH, Sun YC, Chang CY. Preventive vertebroplasty for adjacent vertebral bodies: a good solution to reduce adjacent vertebral fracture after percutaneous vertebroplasty. AJNR Am J Neuroradiol 2012; 33:826-32. [PMID: 22282447 DOI: 10.3174/ajnr.a2898] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Adjacent VCF frequently occurs after percutaneous vertebroplasty. Our aim was to evaluate PrVP in the prevention of PVNO-adjacent VCF. MATERIALS AND METHODS Radiographs of 68 patients who initially presented with a single-level unhealed fracture and underwent vertebroplasty were retrospectively reviewed for the occurrence of PVNO fracture. Patients in the nonpreventive group (n = 33) underwent TVP only for a vertebra with an unhealed fracture. The preventive group (n = 35) underwent PrVP combined with TVP. We injected bone cement into the caudal part of the superior adjacent vertebra and the cephalic part of the inferior adjacent vertebra to perform PrVP. RESULTS The incidences of PVNO fracture in adjacent vertebra next to a vertebra cemented at the patient's first vertebroplasty (within 6 months: 24% versus 3%, P = .012; within 1 year: 30% versus 3%, P = .006; >4 years: 39% versus 3%, P = .006) markedly decreased in the preventive group compared with the nonpreventive group. PVNO fracture was found in 26% of vertebrae adjacent to the first TVP level in the nonpreventive group and in 2% of vertebrae adjacent to a PrVP level in the preventive group after inclusion of all PrVP procedures. Approximately 33% of patients in the nonpreventive group underwent repeat vertebroplasty, mainly due to adjacent fractures. Only 3% of patients in the preventive group underwent repeated procedures. None of the vertebrae cemented for PrVP or TVP developed PVNO refracture. CONCLUSIONS Preventive vertebroplasty for the adjacent vertebra combined with TVP for the fractured vertebra is effective in the prevention of propagation of PVNO adjacent fractures, thus reducing the necessity of multiple repeat vertebroplasty procedures.
Collapse
Affiliation(s)
- C H Yen
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | | | | | | | | |
Collapse
|
43
|
Lo HM, Chiang CF, Tsao HC, Pai TY, Liu MH, Kurniawan TA, Chao KP, Liou CT, Lin KC, Chang CY, Wang SC, Banks CJ, Lin CY, Liu WF, Chen PH, Chen CK, Chiu HY, Wu HY, Chao TW, Chen YR, Liou DW, Lo FC. Effects of spiked metals on the MSW anaerobic digestion. Waste Manag Res 2012; 30:32-48. [PMID: 20880938 DOI: 10.1177/0734242x10383079] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study aimed to investigate the effects of eight metals on the anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) in bioreactors. Anaerobic bioreactors containing 200 mL MSW mixed completely with 200 m L sludge seeding. Ca and K (0, 1000, 2000 and 6,000 mg L(-1)) and Cr, Ni, Zn, Co, Mo and W (0, 5, 50 and 100 mg L(-1)) of various dose were added to anaerobic bioreactors to examine their anaerobic digestion performance. Results showed that except K and Zn, Ca (~728 to ~1,461 mg L(-1)), Cr (~0.0022 to ~0.0212 mg L(-1)), Ni (~0.801 to ~5.362 mg L(-1)), Co (~0.148 to ~0.580 mg L(-1)), Mo (~0.044 to ~52.94 mg L(-1)) and W (~0.658 to ~40.39 mg L(-1)) had the potential to enhance the biogas production. On the other hand, except Mo and W, inhibitory concentrations IC(50) of Ca, K, Cr, Ni, Zn and Co were found to be ~3252, ~2097, ~0.124, ~7.239, ~0.482, ~8.625 mg L(-1), respectively. Eight spiked metals showed that they were adsorbed by MSW to a different extent resulting in different liquid metals levels and potential stimulation and inhibition on MSW anaerobic digestion. These results were discussed and compared to results from literature.
Collapse
Affiliation(s)
- H M Lo
- Department of Environmental Engineering and anagement, Chaoyang University of Technology, Wufong Township, Taichung County, Taiwan, ROC.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Chang CY, Cook MB, Lee YC, Lin JT, Ando T, Bhatia S, Chow WH, El-Omar EM, Goto H, Li YQ, McColl K, Rhee PL, Sharma P, Sung JJY, Wong JYY, Wu JCY, Ho KY, Zhang J, Ho KY. Current status of Barrett's esophagus research in Asia. J Gastroenterol Hepatol 2011; 26:240-6. [PMID: 21155883 PMCID: PMC3026914 DOI: 10.1111/j.1440-1746.2010.06529.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In Western countries, the epidemiology of esophageal cancer has changed considerably over the past decades with a rise in the ratio of adenocarcinoma to squamous cell carcinoma. Although the prevalence of gastroesophageal reflux is increasing in Asia, the prevalences of Barrett's esophagus (BE) and esophageal adenocarcinoma (EAC) have remained low in most Asian countries. The Asian Barrett's Consortium recently conducted a review of published studies on BE from Asia to assess the current status of BE research in Asia, and to recommend potential areas for future BE research in the region. Differences in study design, enrolled population, and endoscopic biopsy protocols used have led to substantial variability in the reported BE prevalence (0.06% to 19.9%) across Asia. In particular, some Japanese studies used diagnostic criteria that differed considerably from what was used in most Asian studies. As in Western countries, increased age, male sex, tobacco smoking, reflux symptoms, and erosive esophagitis have been found to be risk factors for BE in several case-control studies from Asia. The Prague C and M criteria, developed to provide better interobserver reliability in diagnosis and grading of BE, are currently under extensive evaluation in the Asian population. There is a need for standardized protocols for endoscopic and histopathologic diagnosis before initiating collaborative projects to identify etiologic determinants of BE and its ensuing malignant transformation. At present, data regarding the management and long-term outcome of BE are extremely limited in Asia. More studies of BE in this geographic area are warranted.
Collapse
Affiliation(s)
- CY Chang
- Department of Internal Medicine, E-DA Hospital and I-Shou University, Kaohsiung County, Taiwan
| | - Michael B. Cook
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, USA
| | - Yi-Chia Lee
- Department of Internal Medicine, National Taiwan University Hospital, Taiwan
| | - Jaw-Town Lin
- Department of Internal Medicine, E-DA Hospital and I-Shou University, Kaohsiung County, Taiwan, Department of Internal Medicine, National Taiwan University Hospital, Taiwan
| | - Takafumi Ando
- Department of Gastroenterology, Nagoya University Graduate School of Medicine, Japan
| | - Shobna Bhatia
- Department of Gastroenterology, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Wong-Ho Chow
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, USA
| | - Emad M. El-Omar
- Division of Applied Medicine, Institute of Medical Sciences, Aberdeen University, Scotland
| | - Hidemi Goto
- Department of Gastroenterology, Nagoya University Graduate School of Medicine, Japan
| | - Yang-Qing Li
- Department of Gastroenterology, Qilu Hospital, Shandong University, China
| | - Kenneth McColl
- Medical Sciences, Gardiner Institute, Western Infirmary, Glasgow, Scotland
| | - Poong-Lyul Rhee
- Department of Medicine, Sungkyunkwan University School of Medicine, Samsung Medical Center, Korea
| | - Prateek Sharma
- Division of Gastroenterology and Hepatology, Veterans Affairs Medical Center and University of Kansas School of Medicine, USA
| | - Joseph Jao-Yiu Sung
- Department of Medicine & Therapeutics, Prince of Wales Hospital, the Chinese University of Hong Kong, Hong Kong
| | - Jennie Yiik-Yieng Wong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Justin Che-Yuen Wu
- Department of Medicine & Therapeutics, Prince of Wales Hospital, the Chinese University of Hong Kong, Hong Kong
| | - Khek-Yu Ho
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | | | | | | |
Collapse
|
45
|
Chiemchaisri C, Chiemchaisri W, Nindee P, Chang CY, Yamamoto K. Treatment performance and microbial characteristics in two-stage membrane bioreactor applied to partially stabilized leachate. Water Sci Technol 2011; 64:1064-1072. [PMID: 22214052 DOI: 10.2166/wst.2011.534] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A two-stage membrane bioreactor system was applied to the treatment of partially stabilized leachate from solid waste landfill in Thailand. In the system, an anoxic tank with incline tube for biomass separation from re-circulated sludge is followed by a second-stage aerobic tank in which a direct submerged hollow-fiber membrane module is used for solid-liquid separation. During steady operation of 200 days, BOD, COD, NH3 and TKN removals were found to be 99.6, 68, 89 and 86% respectively. Determination of nitrogen transforming bacteria by fluorescent in-situ hybridization technique revealed a slightly higher percentage of nitrifying bacteria in the aerobic tank and a higher percentage of denitrifying bacteria in the anoxic tank respectively. Anammox-like bacteria were also detected at relatively high percentage.
Collapse
Affiliation(s)
- C Chiemchaisri
- Department of Environmental Engineering/National Center of Excellence for Environmental and Hazardous Waste Management, Faculty of Engineering, Kasetsart University, 50 Phaholyothin Road, Bangkok 10900, Thailand.
| | | | | | | | | |
Collapse
|
46
|
Abstract
PURPOSE To investigate the reperfusion injury of the myocardium in patients undergoing elective coronary artery bypass surgery (CABG) with cardiopulmonary bypass (CPB), we monitored the blood levels of troponin I (TNI), white blood cells, oxygen radicals, malondialdehyde, and myeloperoxidase seeking to define the relationship between the CABG-induced systemic inflammation and myocardial injury. MATERIALS AND METHODS We selected 10 patients undergoing primary CABG with CPB at moderate hypothermia and cardioplegic arrest concomitant with intermittent warm blood cardioplegia. We compared all data with their own baseline values to study the reperfusion injury. After release of the aortic clamp, blood was drawn from the coronary sinus, via a catheter placed through the right atrium. We measured plasma levels of inflammatory mediators, such as malondialdehyde, myeloperoxidase, oxygen radicals, and the myocardium injury parameter of TNI. RESULTS Patients showed no difference concerning aortic clamp time. TNI increased significantly at 1, 15, and 30 minutes after the onset of reperfusion. Blood levels of white blood cells, oxygen radicals, malondialdehyde, and myeloperoxidase also increased significantly with reperfusion time. CONCLUSIONS Reperfusion of ischemic myocardium induced increased TNI, which may be related to the systemic inflammatory responses induced by ischemia and reperfusion of the myocardium among patients undergoing elective coronary bypass surgery.
Collapse
Affiliation(s)
- W H Huang
- Department of Medicine, Weigong Memorial Hospital, Miouli, County, Taiwan
| | | | | | | | | | | |
Collapse
|
47
|
Lee CT, Chang CY, Lee YC, Tai CM, Wang WL, Tseng PH, Hwang JC, Hwang TZ, Wang CC, Lin JT. Narrow-band imaging with magnifying endoscopy for the screening of esophageal cancer in patients with primary head and neck cancers. Endoscopy 2010; 42:613-9. [PMID: 20669074 DOI: 10.1055/s-0030-1255514] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND STUDY AIM Although narrow-band imaging (NBI) in endoscopy can improve detection of early-stage esophageal malignancies in patients with head and neck cancers, false-positive results may be obtained in areas with nonspecific inflammatory changes. This study evaluated the feasibility of primary screening with NBI and magnification for the presence of esophageal malignancies in these cancer patients. PATIENTS AND METHODS Sixty-nine patients with documented head and neck cancers were enrolled from April 2008 to January 2009. All patients underwent a meticulous endoscopic examination of the esophagus using a conventional white-light system followed by re-examination using the NBI system and final confirmation with NBI plus magnification. RESULTS Twenty-one patients (30.4 %) were confirmed to have esophageal neoplasia. Among these 21, 16 (76.2 %) had synchronous lesions, 9 (42.9 %) were asymptomatic, and 10 (47.6 %) had early-stage neoplasia. The incidence of multiple esophageal neoplasia was 57.1 %. NBI was more effective than conventional endoscopy in detecting neoplastic lesions (35 lesions in 21 patients vs. 22 lesions in 18 patients) and was particularly effective in patients with dysplasia (13 lesions in 9 patients vs. 3 lesions in 3 patients). The sensitivity and accuracy of detection were 62.9 % and 64.4 % for conventional endoscopy, 100 % and 86.7 % for NBI alone, and 100 % and 95.6 % for NBI with high magnification, respectively. CONCLUSIONS Compared with current approaches, NBI followed by high magnification significantly increases the accuracy of detection of esophageal neoplasia in patients with head and neck cancers. The result warrants conducting prospective randomized controlled study to confirm its efficacy.
Collapse
Affiliation(s)
- C T Lee
- Department of Internal Medicine, E-Da Hospital/I-Shou University, Kaohsiung, Taiwan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Yang KL, Chang CY, Lin S, Shyr MH, Lin PY. Unrelated haematopoietic stem cell transplantation in Taiwan and beyond. Hong Kong Med J 2009; 15:48-51. [PMID: 19494399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
Since its inception in October 1993, the world-renowned Buddhist Tzu Chi Marrow Donor Registry has facilitated more than 1800 cases of stem cell donations for patients in 27 countries to date. Under the auspices of the Buddhist Tzu Chi Stem Cells Center (BTCSCC), the Registry (> 310,000 donors) offers, on average, one case of stem cell donation every day to national or international transplantation community. The accomplishment of the Registry stems from the philosophy and spirit of giving without reward that was inspired by its founder Dharma Master Cheng Yen, the Samaritan devotions of selfless voluntary stem cell donors and the efforts from a dedicated network of volunteer workers. Demographically speaking, slightly less than one third of the donations are provided to domestic patients and the rest to mainland China and countries in Asia, North America, Europe, Middle East, Oceania, and South Africa. While most of the patients belong to the Oriental ethnic group, a few of the patients are non-Oriental. In addition to the Registry, a non-profit umbilical cord blood (UCB) bank is operating since 2002 to provide a complimentary role for patients unable to identify appropriate bone marrow stem cell donors in the Registry in time. To date, with an inventory of over 12,000 units of UCB cryopreserved in the Tzu Chi Cord Blood Bank, 47 units have been employed in 37 cases of transplantation for both paediatric and adult patients domestically and internationally. The fact that Buddhist Tzu Chi Marrow Donor Registry and Cord Blood Bank are established and operating without governmental financial support is unique and special. To facilitate haematopoietic stem cells to its domestic patients experiencing financial burdens, the BTCSCC offers financial aids to the underprivileged for their medical relief. This humanitarian approach and compassion is definitely a role model for many countries in the world.
Collapse
Affiliation(s)
- K L Yang
- Buddhist Tzu Chi Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre, Buddhist Tzu Chi Medical Center, Hualien, Taiwan.
| | | | | | | | | |
Collapse
|
49
|
Lin YJ, Deng MC, Wu SH, Chen YL, Cheng HC, Chang CY, Lee MS, Chien MS, Huang CC. Baculovirus-derived hemagglutinin vaccine protects chickens from lethal homologous virus H5N1 challenge. J Vet Med Sci 2008; 70:1147-52. [PMID: 19057130 DOI: 10.1292/jvms.70.1147] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Since outbreaks of highly pathogenic avian influenza (HPAI) in both human and poultry from 2003, it is critical to have effective vaccines. A cDNA fragment coding the entire hemagglutinin (HA) gene derived from an H5N1 strain (A/duck/China/E319-2/03) was cloned and expressed using the baculovirus system. Two weeks after receiving two doses of recombinant HA (rHA) vaccines, chickens develop high antibody response for hemagglutination inhibition (HI) at titer 7.2 log(2). Challenge studies revealed that vaccinated chickens with HI titers greater than 3 log(2) could have immunoprotection against the same HPAI H5N1 strain virus challenge through intranasal route. Additionally, HI titer of 5 log(2) determined whether the live viruses could not be detected from oropharyngeal, cloacal discharge or in tissues. This result suggests that the rHA expressed from baculovirus system could be a candidate for the development of a safe and efficient subunit vaccine for HPAI (H5N1).
Collapse
Affiliation(s)
- Y J Lin
- Animal Health Research Institute, Council of Agriculture, Taipei, Taiwan
| | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Lai YS, Chiou PP, Chen WJ, Chen YC, Chen CW, Chiu IS, Chen SD, Cheng YH, Chang CY. Characterization of apoptosis induced by grouper iridovirus in two newly established cell lines from barramundi, Lates calcarifer (Bloch). J Fish Dis 2008; 31:825-834. [PMID: 19238757 DOI: 10.1111/j.1365-2761.2008.00957.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Two new cell lines have been established from the muscle and swim bladder tissues of barramundi, Lates calcarifer, and designated as BM (barramundi muscle) and BSB (barramundi swimbladder), respectively. The cells multiplied well at 28 degrees C in Leibovitz's L-15 medium supplemented with 10% foetal bovine serum, and have been continuously subcultured more than 100 times to date. Morphologically, BM cells were mostly fibroblastic, whereas BSB were mostly epithelial. Both cell lines were susceptible to grouper iridovirus (GIV) and displayed characteristics of apoptosis after viral infection. The induction of apoptosis was further assayed in GIV-infected BM and BSB cells by various methods. The inhibition of cell growth by GIV was demonstrated by MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay. Morphological observations revealed typical apoptotic features in the infected cells, including cell shrinkage and rounding, chromosome condensation and formation of apoptotic body-like vesicles. Chromosome fragmentation was detected by DNA laddering and TUNEL assays. Finally, the appearance of phosphotidylserine on the outer leaflet of apoptotic cell membranes was confirmed by annexin V staining. This is the first report of apoptosis induced by GIV in fish cells.
Collapse
Affiliation(s)
- Y S Lai
- Institute of Biotechnology, National Ilan University, Ilan, Taiwan.
| | | | | | | | | | | | | | | | | |
Collapse
|