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Cao S, Deng Q, Tan T, Zhou Y, Wang Y, Zhou Q. Transthoracic ultrasound-guided percutaneous intramyocardial injection combined with ultrasound-targeted microbubble destruction-mediated angiogenin 1 gene therapy in canine myocardial infarction model. Cardiovasc Diagn Ther 2021; 11:1190-1205. [DOI: 10.21037/cdt-21-364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/29/2021] [Indexed: 11/06/2022]
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Lynch A, Quinn L, Briggs R, Tan T, Thorpe O, Romero-Ortuno R, Byrne T, Cunningham C, Lavin A. 161 THE ROLE OF THE GERIATRIC DAY HOSPITAL DURING THE COVID 19 PANDEMIC. Age Ageing 2021. [PMCID: PMC8690085 DOI: 10.1093/ageing/afab219.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background Methods Results Conclusion
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Lynch A, Quinn L, Briggs R, Tan T, Thorpe O, Romero-Ortuno R, Byrne T, Cunningham C, Lavin A. 163 EVALUATING THE ROLE OF THE GERIATRIC DAY HOSPITAL IN MEDICATION OPTIMISATION. Age Ageing 2021. [DOI: 10.1093/ageing/afab219.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Abstract
Background
The geriatric day hospital (GDH) provides outpatient geriatric medical, nursing and rehabilitation care to older adults. The aim of this study was to assess whether medication optimisation occurs in this setting. We believe the GDH would be an ideal location for mediation optimisation due to the stable community dwelling patients and close follow up by specialised physicians.
Methods
Electronic patient records of the new patients ≥65 years seen in the GDH over a 3-month period were reviewed. Potentially inappropriate prescriptions (PIPs) and potentially prescribing omissions (PPOs) were identified using the STOPP/START prescribing tool on admission to the GDH and again at discharge from the GDH.
Results
One-hundred and sixty-seven patient records were reviewed; mean age 80.8 (SD6.5) years, 62.9% female, median clinical frailty scale score 6 (IQR5–6), mean number of conditions 5.79 (SD3), mean number of medications 7.57 (SD3.7). Patients had a median of 4 (IQR2–7) consultations. The number of patients prescribed at least 1 STOPP-PIP reduced by 10% (42.4% vs 38%; p < 0.001). Vasodilator drugs in patients with orthostatic hypotension were deprescribed most frequently (6.5% vs 3%; p < 0.001). PPOs were reduced by 36% (47.5% vs 30.6%;p < 0.001). The largest improvement was identified in the prescription of vitamin D in patients experiencing falls (17.4% vs 13.8%;p < 0.001). Logistic regression was performed to ascertain the influence of age, gender, falls, dementia, co-morbidity number and medication number on the likelihood of a patient experiencing a PIP or PPO. For every medication prescribed, the odds of experiencing a PIP increased by 11.8% (OR1.187, 95%CI 1.052–1.339). Being female increased the odds of experiencing a PPO by 21.7% (OR2.17, 95%CI 10.53–4.468).
Conclusion
Medication optimisation is key in avoiding side effects from potentially inappropriate medications. The frequency of patient attendances coupled with geriatricians’ expertise makes the GDH an ideal setting for medication optimisation in multi-morbid frail community-dwelling older adults.
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Xu X, Lin JHI, Bais AS, Reynolds MJ, Tan T, Gabriel GC, Kondos Z, Liu X, Shiva SS, Lo CW. Mitochondrial Respiration Defects in Single-Ventricle Congenital Heart Disease. Front Cardiovasc Med 2021; 8:734388. [PMID: 34631832 PMCID: PMC8494974 DOI: 10.3389/fcvm.2021.734388] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/16/2021] [Indexed: 02/04/2023] Open
Abstract
Background: Congenital heart disease (CHD) with single-ventricle (SV) physiology is now survivable with a three-stage surgical course ending with Fontan palliation. However, 10-year transplant-free survival remains at 39–50%, with ventricular dysfunction progressing to heart failure (HF) being a common sequela. For SV-CHD patients who develop HF, undergoing the surgical course would not be helpful and could even be detrimental. As HF risk cannot be predicted and metabolic defects have been observed in Ohia SV-CHD mice, we hypothesized that respiratory defects in peripheral blood mononuclear cells (PBMCs) may allow HF risk stratification in SV-CHD. Methods: SV-CHD (n = 20), biventricular CHD (BV-CHD; n = 16), or healthy control subjects (n = 22) were recruited, and PBMC oxygen consumption rate (OCR) was measured using the Seahorse Analyzer. Respiration was similarly measured in Ohia mouse heart tissue. Results: Post-Fontan SV-CHD patients with HF showed higher maximal respiratory capacity (p = 0.004) and respiratory reserve (p < 0.0001), parameters important for cell stress adaptation, while the opposite was found for those without HF (reserve p = 0.037; maximal p = 0.05). This was observed in comparison to BV-CHD or healthy controls. However, respiration did not differ between SV patients pre- and post-Fontan or between pre- or post-Fontan SV-CHD patients and BV-CHD. Reminiscent of these findings, heart tissue from Ohia mice with SV-CHD also showed higher OCR, while those without CHD showed lower OCR. Conclusion: Elevated mitochondrial respiration in PBMCs is correlated with HF in post-Fontan SV-CHD, suggesting that PBMC respiration may have utility for prognosticating HF risk in SV-CHD. Whether elevated respiration may reflect maladaptation to altered hemodynamics in SV-CHD warrants further investigation.
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Wei N, Lamba A, Franciosi S, Law I, Ochoa L, Johnsrude C, Kwok S, Tan T, Dhillon S, Fournier A, Seslar S, Stephenson E, Blaufox A, Cabrera Ortega M, Escudero C, Sanatani S. SUPRAVENTRICULAR TACHYCARDIA IN INFANTS: DOES MEDICATION CHOICE MATTER? Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Ruskó L, Czipczer V, Kolozsvári B, Deák-Karancsi B, Czabány R, Gyalai B, Hajnal D, Karancsi Z, Capala M, Verduijn G, Pearson R, Wyatt J, Borzasi E, Kelemen G, Kószó R, Paczona V, Végváry Z, Cozzini C, Tan T, Maxwell R, Hernandez Tamames J, Petit S, Mccallum H, Hideghéty K, Wiesinger F. OC-0093 Automated organ at risk delineation in T2w head and pelvis MR images for MR-only radiation therapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06787-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Teekakirikul P, Zhu W, Gabriel GC, Young CB, Williams K, Martin LJ, Hill JC, Richards T, Billaud M, Phillippi JA, Wang J, Wu Y, Tan T, Devine W, Lin JH, Bais AS, Klonowski J, de Bellaing AM, Saini A, Wang MX, Emerel L, Salamacha N, Wyman SK, Lee C, Li HS, Miron A, Zhang J, Xing J, McNamara DM, Fung E, Kirshbom P, Mahle W, Kochilas LK, He Y, Garg V, White P, McBride KL, Benson DW, Gleason TG, Mital S, Lo CW. Common deletion variants causing protocadherin-α deficiency contribute to the complex genetics of BAV and left-sided congenital heart disease. HGG ADVANCES 2021; 2:100037. [PMID: 34888534 PMCID: PMC8653519 DOI: 10.1016/j.xhgg.2021.100037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 05/21/2021] [Indexed: 11/11/2022] Open
Abstract
Bicuspid aortic valve (BAV) with ~1%-2% prevalence is the most common congenital heart defect (CHD). It frequently results in valve disease and aorta dilation and is a major cause of adult cardiac surgery. BAV is genetically linked to rare left-heart obstructions (left ventricular outflow tract obstructions [LVOTOs]), including hypoplastic left heart syndrome (HLHS) and coarctation of the aorta (CoA). Mouse and human studies indicate LVOTO is genetically heterogeneous with a complex genetic etiology. Homozygous mutation in the Pcdha protocadherin gene cluster in mice can cause BAV, and also HLHS and other LVOTO phenotypes when accompanied by a second mutation. Here we show two common deletion copy number variants (delCNVs) within the PCDHA gene cluster are associated with LVOTO. Analysis of 1,218 white individuals with LVOTO versus 463 disease-free local control individuals yielded odds ratios (ORs) at 1.47 (95% confidence interval [CI], 1.13-1.92; p = 4.2 × 10-3) for LVOTO, 1.47 (95% CI, 1.10-1.97; p = 0.01) for BAV, 6.13 (95% CI, 2.75-13.7; p = 9.7 × 10-6) for CoA, and 1.49 (95% CI, 1.07-2.08; p = 0.019) for HLHS. Increased OR was observed for all LVOTO phenotypes in homozygous or compound heterozygous PCDHA delCNV genotype comparison versus wild type. Analysis of an independent white cohort (381 affected individuals, 1,352 control individuals) replicated the PCDHA delCNV association with LVOTO. Generalizability of these findings is suggested by similar observations in Black and Chinese individuals with LVOTO. Analysis of Pcdha mutant mice showed reduced PCDHA expression at regions of cell-cell contact in aortic smooth muscle and cushion mesenchyme, suggesting potential mechanisms for BAV pathogenesis and aortopathy. Together, these findings indicate common variants causing PCDHA deficiency play a significant role in the genetic etiology of common and rare LVOTO-CHD.
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Xu R, Lam K, Pan H, Qiu M, Zheng Y, Liu Z, Tan T, Hang W. P-18 Phase Ib study of niraparib plus tebotelimab in patients with advanced or metastatic gastric cancer after prior treatment failure. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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O’Riordan E, Haugh C, Popivanov P, Tan T. P.59 What lies beneath, then and now: Comparative audit in an obstetric HDU. Int J Obstet Anesth 2021. [DOI: 10.1016/j.ijoa.2021.103057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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van der Slot M, Den Bakker M, Kweldam C, Remmers S, Tan T, Klaver O, Kliffen M, Busstra M, Rietbergen J, Gan M, Hamoen K, Budel L, Goemaere N, Bangma C, Helleman J, Roobol M, Van Leenders G. Outcomes after introducing intraoperative NeuroSAFE technique in robot-assisted radical prostatectomy. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01468-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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O’Riordan E, Hickey A, O’Gorman L, O’Riordan M, Ma M, Tan T, Popivanov P. P.96 Development of effective and safe virtual pre-operative assessment during the Covid-19 pandemic through utilisation of telemedicine: a quality improvement project in a stand-alone maternity hospital. Int J Obstet Anesth 2021. [PMCID: PMC8186959 DOI: 10.1016/j.ijoa.2021.103094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tan T, Xu XH, Lu XH, Wang XW. MiRNA-200a-3p suppresses the proliferation, migration and invasion of non-small cell lung cancer through targeting IRS2. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2021; 24:712-720. [PMID: 32016973 DOI: 10.26355/eurrev_202001_20050] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To uncover the biological role of microRNA-200a-3p (miRNA-200a-3p) in the progression of non-small cell lung cancer (NSCLC) and the underlying mechanism. PATIENTS AND METHODS The expression levels of miRNA-200a-3p and IRS2 in NSCLC tissues and cell lines were examined through quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). The correlation between the miRNA-200a-3p level and pathological characteristics of NSCLC patients was analyzed. The prognostic value of miRNA-200a-3p in NSCLC was assessed through the Kaplan-Meier method. The potential interaction between miRNA-200a-3p and IRS2 was explored through Dual-Luciferase Reporter Gene Assay and Spearman correlation test. The regulatory effects of miRNA-200a-3p/IRS2 on the proliferative, migratory, and invasive abilities of NSCLC were evaluated by Cell Counting Kit-8 (CCK-8) and the transwell assay. The protein levels of the epithelial-mesenchymal transition (EMT)-related genes in NSCLC cells influenced by miRNA-200a-3p were detected by Western blot. RESULTS MiRNA-200a-3p was downregulated in NSCLC tissues and cell lines. The expression level of miRNA-200a-3p was related to tumor size, TNM staging, and lymphatic metastasis of NSCLC. The low level of miRNA-200a-3p predicted worse prognosis in NSCLC patients. The overexpression of miRNA-200a-3p inhibited A549 cells from proliferating, migrating, and invading. The protein levels of E-cadherin were upregulated, while N-cadherin and Vimentin were downregulated in A549 cells overexpressing miRNA-200a-3p. The Dual-Luciferase Reporter Gene Assay verified the binding between miRNA-200a-3p and IRS2. The level of IRS2 was negatively regulated by miRNA-200a-3p. Moreover, the overexpression of IRS2 could reverse the regulatory role of miRNA-200a-3p in the cellular behaviors of A549 cells. CONCLUSIONS MiRNA-200a-3p suppresses the proliferative, migratory, and invasive abilities of NSCLC by targeting IRS2, thus alleviating the progression of NSCLC.
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Huang Q, Gong M, Tan T, Lin Y, Bao Y, Fan C. Human Umbilical Cord Mesenchymal Stem Cells-Derived Exosomal MicroRNA-18b-3p Inhibits the Occurrence of Preeclampsia by Targeting LEP. NANOSCALE RESEARCH LETTERS 2021; 16:27. [PMID: 33566191 PMCID: PMC7876216 DOI: 10.1186/s11671-021-03475-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 01/05/2021] [Indexed: 06/12/2023]
Abstract
Exosomes derived from human umbilical cord mesenchymal stem cells (hucMSCs) expressing microRNAs have been highlighted in human diseases. However, the detailed molecular mechanism of hucMSCs-derived exosomal miR-18b-3p on preeclampsia (PE) remains further investigation. We aimed to investigate the effect of exosomes and miR-18b-3p/leptin (LEP) on occurrence of PE. The morphology of the hucMSC and hucMSC-exosomes (Exos) was identified. The exosomes were infected with different lentivirus expressing miR-18b-3p to explore the role of miR-18b-3p in PE. The PE rat model was established by intraperitoneal injection of N-nitro-L-arginine methyl ester. The expression of LEP and miR-18b-3p was tested in PE rat placenta tissues. Also, the effect of exosomes on LEP and miR-18b-3p expression was detected. The systolic blood pressure (SBP), proteinuria, inflammatory factors, the weight of fetal rat and placenta and cell apoptosis in PE rats were detected. Finally, the relationship between miR-18b-3p and LEP was verified using dual-luciferase reporter gene assay and RNA pull-down assay. Exosomes, restoring miR-18b-3p or inhibiting LEP reduced SBP and proteinuria of PE rats as well as increased the weight of fetal rat and placenta, decreased serum levels of inflammatory factors as well as suppressed apoptotic cells of PE rats, exerting a suppressive effect on PE progression. miR-18b-3p was decreased and LEP was increased in placenta tissues of PE rats. LEP was the direct target gene of miR-18b-3p. Upregulation of miR-18b-3p or treatment of the exosomes suppressed LEP expression and reduced PE occurrence, while downregulation of miR-18b-3p had contrary effects. Downregulated LEP reversed the effect of miR-18b-3p reduction on PE rats. HucMSCs-derived exosomal miR-18b-3p targets LEP to participate in the occurrence and development of PE. This study may provide a novel theoretical basis for the mechanism and investigation of PE.
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Bhat A, Chen H, Khanna S, Mahajan V, Gupta A, Burdusel C, Wolfe N, Lee L, Gan G, Dobbins T, MacIntyre C, Tan T. Diagnostic and Prognostic Value of Novel Echocardiographic Biomarkers in Identification of Cardioembolism and Prediction of Outcomes in Patients with Stroke of Undetermined Source. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kodsi M, Malaty M, Amarasekera A, Kayes T, Tan T. Global Constructive Work may be a Potential Predictor of CRT Responders: A Systematic Review and Meta-analysis. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Khanna S, Newman J, Gupta A, Wen I, Bhat A, Chen H, Gan G, Tan T. Left Ventricular Global Longitudinal Strain is a Predictor of Adverse Cardiovascular Outcomes in Patients With Rheumatoid Arthritis. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Malaty M, Chandrakumar D, Li C, Aladdin A, Jethwani U, Gan G, Tan T. Prevalence of Cardiotoxicity in Cancer Patients Treated With Single and Combination Immune Checkpoint Inhibitor Therapy—A Single Centre Study. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Malaty M, Chandrakumar D, Li C, Aladdin A, Jethwani U, Gan G, Tan T. Factors Impacting on the Early Versus Late Major Adverse Cardiovascular Events Amongst Oncology Patients Receiving Non-Anthracycline Chemotherapy. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Wen I, Khanna S, Thakur A, Chen H, Bhat A, Gan G, Tan T. Patients With Neuro-Immunological Disorders With Normal Left Ventricular Ejection Fraction Demonstrate Impaired Left Ventricular Global Longitudinal Strain. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Khanna S, Amarasekera A, Li C, Bhat A, Chen H, Gan G, Tan T. Characterisation of Myocardial Structure and Function by Cardiac Magnetic Resonance Imaging in Adult Patients With Acute-Phase Myocarditis: A Systematic Review and Meta-analysis. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mahendran S, Amarasekera A, Li C, Padhi A, Vien A, Malaty M, Tan T. Major Adverse Cardiovascular Events (MACE) in COVID-19 Infection and the Role of Cardiac Biomarkers: A Systematic Literature Review. Heart Lung Circ 2021. [PMCID: PMC8324094 DOI: 10.1016/j.hlc.2021.06.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Janku F, Abdul-Karim R, Azad A, Bendell J, Gan H, Sen S, Tan T, Wang J, Marina N, Baker L, Ma L, Mooney J, Luo D, Leveque J, Milla M, Meniawy T. Preliminary results from an open-label, multicenter phase 1/2 dose escalation and expansion study of THOR-707, a novel not-Alpha IL-2, as a single agent in adult subjects with advanced or metastatic solid tumors. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31094-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Manchester L, Della-Giustina D, Tan T, Coughlin R. 333 Improving Burnout With Resident Shift Adjustments: A Wellness Innovation. Ann Emerg Med 2020. [DOI: 10.1016/j.annemergmed.2020.09.348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hollingshead RL, Henry-Etesse L, Tankere E, Kamper D, Tan T. Static accuracy of resistive bend sensors. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2020; 2020:4672-4675. [PMID: 33019036 DOI: 10.1109/embc44109.2020.9175166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sensing of finger joint rotation can be difficult due to the hand's many degrees-of-freedom within a small space. Resistive bend sensors offer a potentially attractive option for making these measurements due to their low profile, small mass, and low cost. Further characterization of these bend sensors is needed, however, to ensure that readings are accurate. Specifically the static accuracy when bending and straightening the sensor has not been investigated. In this study, two-inch resistive sensors were bent from 0° to 90° and back to 0° while measuring the voltage output. Five calibration models were fitted to the measured data and used to determine the sensor's accuracy. When used with coated sensors, both the cubic and pchip models demonstrated non-monotonic behavior at low bend angles. Using uncoated sensors, the pchip calibration function and raw data resulted in a median error of 1.7° (SD 1.7°, range 12.1°).
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Narducci E, Mouttet K, Shahbazi A, Pool D, Tan T. A Study of the Safety and Functionality of Gamified Electromyographic Biofeedback for Children with Cerebral Palsy. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2020; 2020:5180-5183. [PMID: 33019152 DOI: 10.1109/embc44109.2020.9175654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cerebral palsy is a neurodevelopmental condition that affects 17 million individuals worldwide. Traditionally, methods of therapy are repetitive and monotonous, generating immense difficulty in maintaining patient motivation and engagement. This project's objective was to provide a novel method of therapeutic intervention that was co-designed by therapists and had the capacity to increase patient motivation and enjoyment. The system developed incorporated the use of muscle activations retrieved from a bespoke surface electromyography subsystem, to control custom computer games to increase therapy uptake. The safety and functionality of this device was verified through a series of trials performed on adults without any muscular impairments. Furthermore, a feasibility evaluation was conducted whereby the system was demonstrated to a group of healthcare professionals to gain their feedback. The trial results confirmed the safety and functionality of the system, with professional therapists confirming its clinical potential and its perceived benefits.
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