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Luo Z, Feng Y, Luo D, Li S, Xiao K, Shen H, Hu Q. Favorable factors for the survival of ST-segment elevation myocardial infarction patients with medium- and high-risk thrombolysis in myocardial infarction scores. BMC Cardiovasc Disord 2023; 23:614. [PMID: 38093222 PMCID: PMC10720153 DOI: 10.1186/s12872-023-03628-7] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023] Open
Abstract
OBJECTIVE ST-segment myocardial infarction (STEMI) is a time-sensitive emergency. This study screened the favorable factors for the survival of STEMI patients with medium- and high-risk thrombolysis in myocardial infarction (TIMI) scores. METHODS According to the TIMI scores at admission, 433 STEMI patients were retrospectively and consecutively selected and allocated into low-/medium-/high-risk groups, with their general information/blood routine/biochemical indicators/coagulation indicators documented. The factors influencing the in-hospital survival of STEMI patients were analyzed using univariate and multivariate logistic regression analyses. Moreover, the predictive value of favorable factors was analyzed by receiver operating characteristics (ROC) curve, and patients were assigned into high/low level groups based on the cut-off value of these factors, with their in-hospital survival rates compared. RESULTS The in-hospital survival rate of the medium-/high-risk groups was lower than that of the low-risk group. Emergency percutaneous coronary intervention (PCI), lymphocyte (LYM), total protein (TP), albumin (ALB), and sodium (Na) were independent favorable factors for in-hospital survival in the medium-/high-risk groups. Besides, LYM > 1.275 × 109/L, TP > 60.25 g/L, ALB > 34.55 g/L, and Na > 137.9 mmo1/L had auxiliary predictive value for the survival of STEMI patients with medium-/high-risk TIMI scores. Patients with high levels of LYM, TP, ALB, and Na exhibited higher in-hospital survival rates than patients with low levels. CONCLUSION For STEMI patients with medium- and high-risk TIMI scores, accepting emergency PCI and normal levels of LYM, TP, ALB, and Na were more conducive to in-hospital survival.
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Affiliation(s)
- Zhengli Luo
- Emergency Department, Panzhihua Central Hospital, No. 34 Yikang Street, Middle Section of Panzhihua Avenue, Panzhihua, 617000, China
| | - Yuan Feng
- Emergency Department, Panzhihua Central Hospital, No. 34 Yikang Street, Middle Section of Panzhihua Avenue, Panzhihua, 617000, China
| | - Dan Luo
- Emergency Department, Panzhihua Central Hospital, No. 34 Yikang Street, Middle Section of Panzhihua Avenue, Panzhihua, 617000, China
| | - Shiyang Li
- Division of Cardiology, Panzhihua Central Hospital, Panzhihua, China
| | - Kaiyi Xiao
- Emergency Department, Panzhihua Central Hospital, No. 34 Yikang Street, Middle Section of Panzhihua Avenue, Panzhihua, 617000, China
| | - Hongmei Shen
- Information Center, Panzhihua Central Hospital, Panzhihua, China
| | - Qiang Hu
- Emergency Department, Panzhihua Central Hospital, No. 34 Yikang Street, Middle Section of Panzhihua Avenue, Panzhihua, 617000, China.
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Kaçmaz M, Oğuzman H. The Leucine-Rich α2-Glycoprotein-1 Levels in Patients with Multiple Myeloma. Oncol Res Treat 2023; 46:415-423. [PMID: 37527638 DOI: 10.1159/000532042] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/13/2023] [Indexed: 08/03/2023]
Abstract
INTRODUCTION Angiogenesis is considered important in the pathogenesis of multiple myeloma (MM), as well as in the targeted treatment of the disease. Leucine-rich α2-glycoprotein 1 (LRG1) is a protein that participates in angiogenesis and its effect on solid organ tumors has been investigated recently. This study aimed to investigate the relationship between MM and LRG1. METHODS The MM patients who admitted to Hatay Mustafa Kemal University Hematology Clinic between September 2021 and October 2022 were included in the study. The study consists of a total of 4 groups: newly diagnosed MM (NDMM), relapsed refractory MM (RRMM), MM in remission (Rem-MM), and control group. Demographic data were retrieved from hospital records. Blood samples of our study groups were centrifuged at 1,500 × g for 10 min and serum was collected. LRG1, IL-6, IL-8, TGF-β1, HIF-1α, FGF-2, and VEGF levels were analyzed in all groups by ELISA method, and statistical analysis was performed. RESULTS A total of 112 individuals, including NDMM (n: 27), RRMM (n: 18), Rem-MM (n: 42), and control group (n: 25), were enrolled in the study. Based on the analyses, the NDMM group exhibited significantly elevated levels of LRG1 (p < 0.001), TGF-1 (p < 0.001), and HIF-1α (p = 0.046, p < 0.001, and p = 0.003 compared to the RRMM, Rem-MM, and control groups, respectively) compared to the other groups. LRG1 levels were positively correlated with creatinine (r: 0.363, p = 0.001), calcium (r: 0.344, p = 0.001), total protein (r: 0.473, p < 0.001), erythrocyte sedimentation rate (r: 0.547, p < 0.001), lactate dehydrogenase (r: 0.321, p = 0.003), beta-2-microglobulin (r: 0.312, p = 0.017), IL-6 (r: 0.478, p < 0.001), IL-8 (r: 0.240, p = 0.03), TGF-β1 (r: 0.521, p < 0.001), and HIF-1α (r: 0.321, p = 0.003) levels and were negatively correlated with hemoglobin (r: -0.512, p < 0.001) and albumin (r: -0.549, p < 0.001) levels. Receiver operating characteristics (ROC) analysis revealed the association of LRG1 with the highest AUC value of 0.959 (95% CI: 0.904-1, p < 0.001) and the optimal cut-off value of 534.95 ng/mL (sensitivity: 93% and specificity: 99%) in the NDMM group compared to the control group. CONCLUSION In this study, providing data for the first time on LRG1 levels in the setting of MM. LRG1 levels were found to be significantly higher in NDMM patients and in our study discriminate this patient population from RRMM, Rem-MM, and normal controls. Therefore, LRG1 seems to a potential biomarker that should be evaluated in future studies addressing the diagnosis, staging, follow-up, prognosis, and treatment target of MM.
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Affiliation(s)
- Murat Kaçmaz
- Department of Hematology, Faculty of Medicine, Hatay Mustafa Kemal University, Antakya, Turkey
| | - Hamdi Oğuzman
- Department of Medical Biochemistry, Faculty of Medicine, Hatay Mustafa Kemal University, Antakya, Turkey
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Hermanns N, Ehrmann D, Heinemann L, Freckmann G, Waldenmaier D, Calhoun P. Real-Time Continuous Glucose Monitoring Can Predict Severe Hypoglycemia in People with Type 1 Diabetes: Combined Analysis of the HypoDE and DIAMOND Trials. Diabetes Technol Ther 2022; 24:603-610. [PMID: 35604794 DOI: 10.1089/dia.2022.0130] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective: We combined data from two landmark trials (DIAMOND and HypoDE) to examine the diagnostic performance of low glucose measurements derived from open and masked continuous glucose monitoring (CGM) to predict the occurrence of future severe hypoglycemia (SH). Methods: We analyzed hypoglycemia parameters (low blood glucose index [LBGI], % <70 mg/dL, 54-69 mg/dL [level 1 hypoglycemia] and <54 mg/dL [level 2 hypoglycemia]) from masked CGM over 14 days during baseline and from open CGM over 14 days after randomization. We used receiver operating characteristics (ROC) curves to evaluate the screening performance of these measures to predict future SH. Positive likelihood ratios were calculated to indicate the overall diagnostic performance of these parameters. Results: Data from 288 individuals with type 1 diabetes (mean age 45.6 ± 12.8 years, diabetes duration 20.7 ± 13.7 years, HbA1c 8.2% ± 1.0%, Hypoglycemia Unawareness Score 3.4 ± 2.1) were analyzed. Area under ROC-curve (AUC) for LBGI and % <70 mg/dL ranged between 0.68 and 0.75, indicating that LBGI and % <70 mg/dL could significantly predict future SH. Significance of AUC regarding % <54 mg/dL were mixed (0.63-0.72). Positive and negative likelihood ratios ranged between 1.82 to 3.40 and 0.56 to 0.32, respectively. Suggested optimal cutoff values were remarkedly lower in open CGM than in masked CGM. Conclusion: These results indicate that CGM-derived hypoglycemic parameters have a good screening performance to significantly predict future clinical hypoglycemia. In addition, this analysis suggests that cutoff values to indicate elevated hypoglycemia risk in the future are substantially lower in open CGM than in masked CGM. ClinicalTrials.gov registration numbers: HypoDE: NCT02671968. DIAMOND: NCT02282397.
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Affiliation(s)
- Norbert Hermanns
- Research Institute Diabetes Academy Mergentheim (FIDAM), Bad Mergentheim, Germany
- Department of Clinical Psychology and Psychotherapy, University of Bamberg, Bamberg, Germany
| | - Dominic Ehrmann
- Research Institute Diabetes Academy Mergentheim (FIDAM), Bad Mergentheim, Germany
- Department of Clinical Psychology and Psychotherapy, University of Bamberg, Bamberg, Germany
| | | | - Guido Freckmann
- Institut für Diabetes-Technologie, Forschungs-und Entwicklungsgesellschaft mbH an der Universität Ulm, Ulm, Germany
| | - Delia Waldenmaier
- Institut für Diabetes-Technologie, Forschungs-und Entwicklungsgesellschaft mbH an der Universität Ulm, Ulm, Germany
| | - Peter Calhoun
- Jaeb Center for Health Research, Tampa, Florida, USA
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Schreiber S, Parent EC, Hill DL, Hedden DM, Moreau MJ, Southon SC. Patients with adolescent idiopathic scoliosis perceive positive improvements regardless of change in the Cobb angle - Results from a randomized controlled trial comparing a 6-month Schroth intervention added to standard care and standard care alone. SOSORT 2018 Award winner. BMC Musculoskelet Disord 2019; 20:319. [PMID: 31286903 PMCID: PMC6615154 DOI: 10.1186/s12891-019-2695-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 06/26/2019] [Indexed: 12/13/2022] Open
Abstract
Background The Cobb angle is proposed as the “disease process” outcome for scoliosis research because therapies aim to correct or stop curve progression. While the Scoliosis Research Society recommends the Cobb angle as the primary outcome, the Society on Scoliosis Orthopaedic and Rehabilitation Treatment prioritises, as a general goal, patient related outcomes over Cobb angle progression. Objective To determine the threshold of change in the Cobb angle in adolescents with idiopathic scoliosis (AIS) who perceive improvement in a 6-months randomized controlled trial comparing a Schroth exercise intervention added to the standard of care to the standard of care alone. Methods This is a secondary analysis of data from a randomized controlled trial of 50 patients with AIS, with curves ranging from 10° to 45°, with or without a brace. Participants with diagnoses other than AIS, surgical candidates or patients who had scoliosis surgery were excluded. The 6-month interventions consisted of Schroth exercises added to standard-of-care (observation or bracing) with daily home exercises and weekly therapy sessions (Schroth) or standard-of-care alone (Control). The anchor method for estimating the minimal important difference (MID) in the largest Cobb angles (LC) was used. Patient-reported change in back status over the 6-month treatment period was measured using the Global Rating of Change (GRC) scale as anchor varying from − 7 (“great deal worse”) to + 7 (“great deal better”). Participants were divided into two groups based on GRC scores: Improved (GRC ≥2) or Stable/Not Improved (GRC ≤1). MID was defined as the change in the LC that most accurately predicted the GRC classification as per the receiver operating characteristic curve (ROC). Results The average age was 13.4 ± 1.6 years and the average LC was 28.5 ± 8.8 °s. The average GRC in the control group was − 0.1 ± 1.6, compared to + 4.4 ± 2.2 in the Schroth group. The correlation between LC and GRC was adequate (r = − 0.34, p < 0.05). The MID for the LC was 1.0 °. The area under the ROC was 0.69 (0.52–0.86), suggesting a 70% chance to properly classify a patient as perceiving No Improvement/Stable or Improvement based on the change in the LC. Conclusion Patients undergoing Schroth treatment perceived improved status of their backs even if the Cobb angle did not improve beyond the conventionally accepted threshold of 5°. Standard of care aims to slow/stop progression while Schroth exercises aim to improve postural balance, signs and symptoms of scoliosis. Given the very small MID, perceived improvement in back status is likely due to something other than the Cobb angle. This study warrants investigating alternatives to the Cobb angle that might be more relevant to patients. Trial registration ClinicalTrials.gov, NCT01610908. Retrospectively registered on April 2, 2012 (first posted on June 4, 2012 - https://clinicaltrials.gov/ct2/keydates/NCT01610908)
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Affiliation(s)
- Sanja Schreiber
- Faculty of Rehabilitation Medicine, University of Alberta, 3-48 Corbett Hall, 8205 114 Street, Edmonton, Alberta, T6G2G4, Canada.
| | - Eric C Parent
- Department of Physical Therapy, University of Alberta, 2-50 Corbett Hall, Edmonton, Alberta, T6G2G4, Canada
| | - Doug L Hill
- University of Alberta, Alberta Health Services, Glenrose Rehabilitation Hospital, 10230 111 Ave NW, Edmonton, AB, T5G 0B7, Canada
| | - Douglas M Hedden
- Royal College of Physicians and Surgeons of Canada, 774 Echo Drive, Ottawa, ON, K1S 5N8, Canada
| | - Marc J Moreau
- University of Alberta, Alberta Health Services, Glenrose Rehabilitation Hospital, 10230 111 Ave NW, Edmonton, AB, T5G 0B7, Canada
| | - Sarah C Southon
- Department of Surgery, Faculty of Medicine & Dentistry, Stollery Children's Hospital room 4D4.21, 8440 112 Street, Edmonton, AB, T6G 2B7, Canada
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Venugopal G, Mechenro J, Makharia G, Singh A, Pugazhendhi S, Balamurugan R, Ramakrishna BS. Sequential testing with different tissue transglutaminase antibodies, a new approach for diagnosis of celiac disease. Indian J Gastroenterol 2017; 36:481-486. [PMID: 29270909 DOI: 10.1007/s12664-017-0803-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 08/01/2017] [Accepted: 11/19/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND The diagnosis of celiac disease (CeD) in clinical practice relies on serological testing for IgA antibodies to human tissue transglutaminase (anti-tTG) which diagnose CeD autoimmunity. We compared three kits for their performance in diagnosis of the disease and evaluated the point prevalence of CeD autoimmunity in a South Indian urban population. METHODS In the first part of the study, sera from 90 patients with documented CeD and 92 healthy controls were tested for anti-tTG using three different kits. One thousand nine hundred and seventeen healthy adults residing in urban areas of Vellore and Kancheepuram districts were tested for CeD autoimmunity using a sequential two-test strategy. RESULTS The sensitivity, specificity, false positivity, false negativity, positive predictive value, and negative predictive value for the three assays respectively were as follows: 95.5%, 82.6%, 17.3%, 4.4%, 84.3%, and 95% for the Aeskulisa New Generation Assay; 85.5%, 100%, 0%, 14.4%, 100%, and 87.6% for Quanta Lite; and 71.1%, 100%, 0%, 28.8%, 100%, and 71% for Celiac Microlisa. The ROC curves showed good discrimination for all three ELISAs with an AUC of 0.947, 0.950, and 0.886 for the Aeskulisa, Quanta Lite, and Celiac Microlisa, respectively. Of 1917 (males 908, females 1009) healthy adults, 113 (5.89%) were seropositive for IgA anti-htTG in the Aeskulisa test. Two of the latter tested positive in the Quanta Lite assay and/or the Celiac Microlisa assay. The CeD autoimmunity prevalence in this urban population was 1.0 per thousand (95% confidence interval 0.3 to 3.7 per thousand). CONCLUSION Sequential testing for anti-tTG using first a highly sensitive assay followed by a very specific assay is a new strategy for screening for CeD in clinical practice.
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Affiliation(s)
- Giriprasad Venugopal
- SRM Institutes for Medical Science, 1, Jawaharlal Nehru Salai, Vadapalani, Chennai, 600 026, India.,SRM Medical College Hospital and Research Centre, Kattankulathur, India
| | - John Mechenro
- SRM Institutes for Medical Science, 1, Jawaharlal Nehru Salai, Vadapalani, Chennai, 600 026, India.,SRM Medical College Hospital and Research Centre, Kattankulathur, India
| | - Govind Makharia
- All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110 029, India
| | - Alka Singh
- All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110 029, India
| | | | | | - Balakrishnan S Ramakrishna
- SRM Institutes for Medical Science, 1, Jawaharlal Nehru Salai, Vadapalani, Chennai, 600 026, India. .,SRM Medical College Hospital and Research Centre, Kattankulathur, India.
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Qin H, Yang Q, Zhuang Q, Long J, Yang F, Zhang H. Morphological and Hemodynamic Parameters for Middle Cerebral Artery Bifurcation Aneurysm Rupture Risk Assessment. J Korean Neurosurg Soc 2017; 60:504-510. [PMID: 28881112 PMCID: PMC5594626 DOI: 10.3340/jkns.2017.0101.009] [Citation(s) in RCA: 17] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/09/2017] [Accepted: 03/17/2017] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVE To investigate the morphological and hemodynamic parameters associated with middle cerebral artery (MCA)bifurcation aneurysm rupture. METHODS A retrospective study of 67 consecutive patients was carried out based on 3D digital subtraction angiography data. Morphological and hemodynamic parameters including aneurysm size parameters (dome width, height, and perpendicular height), longest dimension from the aneurysm neck to the dome tip, neck width, aneurysm area, aspect ratio, Longest dimension from the aneurysm neck to the dome tip (Dmax) to dome width, and height-width, Bottleneck factor, as well as wall shear stress (WSS), low WSS area (LSA), percentage of LSA (LSA%) and energy loss (EL) were estimated. Parameters between ruptured and un-ruptured groups were analyzed. Receiver operating characteristics were generated to check prediction performance of all significant variables. RESULTS Sixty-seven patients with MCA bifurcation aneurysm were included (31 unruptured, 36 ruptured). Dmax (p=0.008) was greater in ruptured group than that in un-ruptured group. D/W (p<0.001) and the percentage of the low WSS area (0.09±0.13 vs. 0.01±0.03, p<0.001) were also greater in the ruptured group. Moreover, the EL in ruptured group was higher than that in un-ruptured group (6.39±5.04 vs. 1.53±0.86, p<0.001). Multivariate regression analysis suggested D/W and EL were significant predictors of rupture of MCA bifurcation aneurysms. Correlation analyses revealed the D/W value was positively associated with the EL (R=0.442, p<0.01). CONCLUSION D/W and EL might be the most two favorable factors to predict rupture risk of MCA bifurcation aneurysms.
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Affiliation(s)
- Hao Qin
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, China
| | - Qixia Yang
- Department of Pharmacy, Zaozhuang Municipal Hospital, Zaozhuang, China
| | - Qiang Zhuang
- Department of Neurosurgery, Zaozhuang Municipal Hospital, Zaozhuang, China
| | - Jianwu Long
- Department of Neurosurgery, The 3rd Hospital of Xiamen, Xiamen, China
| | - Fan Yang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Hongqi Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
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Seneviratne U, Minato E, Paul E. How reliable is ictal duration to differentiate psychogenic nonepileptic seizures from epileptic seizures? Epilepsy Behav 2017; 66:127-131. [PMID: 28039841 DOI: 10.1016/j.yebeh.2016.10.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 08/12/2016] [Revised: 10/19/2016] [Accepted: 10/19/2016] [Indexed: 11/16/2022]
Abstract
We sought to investigate (1) differences in ictal duration between psychogenic nonepileptic seizures (PNES) and epileptic seizures (ES), (2) the odds of being PNES when seizures last ≥5min, and (3) the value of ictal duration as a diagnostic test to differentiate PNES from ES. We retrospectively reviewed video-EEG recordings and tabulated ictal durations of all PNES and ES. We estimated the mean ictal durations of PNES and ES using linear mixed models. The odds of being PNES when seizures last ≥5min were estimated using logistic regression. We used receiver operating characteristics (ROC) curves to study the overall diagnostic accuracy of ictal duration in differentiating PNES from ES. We studied 441 ES and 341 PNES recorded from 138 patients. The mean ictal duration of PNES (148.7s, 95% CI: 115.2-191.8) was significantly longer (p<0.001) than that of ES (47.7s, 95% CI: 37.6-60.6). The odds of being PNES was about 24 times higher (Odds ratio: 23.8, 95% CI: 7.9-71.3) when the ictal duration was ≥5min. The ROC curve yielded an area under the curve of 0.80 (95% CI 0.73-0.88). Youden's index identified 123.5s as the optimal threshold to diagnose PNES with 65% sensitivity and 93% specificity. Our results indicate that ictal duration is a useful test to raise suspicion of PNES. When a seizure lasts ≥5min, it is 24 times more likely to be PNES with the potential risk of misdiagnosis as status epilepticus.
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Affiliation(s)
- Udaya Seneviratne
- Department of Neuroscience, Monash Medical Centre, Melbourne, Australia; Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Australia.
| | - Erica Minato
- Department of Neuroscience, Monash Medical Centre, Melbourne, Australia.
| | - Eldho Paul
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia; Department of Clinical Haematology, Alfred Hospital, Melbourne, Australia.
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Shahbabu B, Dasgupta A, Sarkar K, Sahoo SK. Which is More Accurate in Measuring the Blood Pressure? A Digital or an Aneroid Sphygmomanometer. J Clin Diagn Res 2016; 10:LC11-4. [PMID: 27134902 DOI: 10.7860/jcdr/2016/14351.7458] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 05/31/2015] [Accepted: 12/11/2015] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Hypertension is one of the major public health problem affecting the whole world so its accurate measurement is of utmost importance for its early diagnosis and management. Concerns related to the potential ill effects of mercury on health and environment, has led to the widespread use of non-mercury sphygmomanometers. AIM A study was conducted to compare the accuracy of readings of aneroid and digital sphygmomanometers in reference to mercury sphygmomanometers and determine the hypertensive classification agreement between the mercury and non-mercury devices. MATERIALS AND METHODS The study was conducted in an OPD of a health centre in a rural community of West Bengal which is the rural field practice area of our institute. An aneroid and a digital sphygmomanometer were compared to a properly calibrated mercury sphygmomanometer. All the subjects above the age of 25 years, in two days per week, selected randomly from five working days per week in a period of one month were selected. Two blood pressure readings of each of 218 study subjects was recorded with each pretested sphygmomanometer. Paired t-test, Kappa coefficients, sensitivity and specificity tests were done. Receiver Operating Characteristics curve analysis was done and Youden index was estimated to detect the optimal cut off point for the diagnosis of hypertension by non-mercury sphygmomanometers. RESULTS Data analysis of 218 study subjects showed the mean difference of the mercury reading and the test device was much less for aneroid than that of the digital device for both systolic and diastolic blood pressure. More than 89% of aneroid readings and less than 44% of the readings by digital device had absolute difference of 5mm Hg. when compared with the mercury readings for both systolic and diastolic blood pressure. Sensitivity and specificity of aneroid device was higher (86.7% and 98.7%) than digital device (80% and 67.7%). Receiver Operating Characteristic curve had larger area under the curve for aneroid device than digital device for both SBP and DBP. CONCLUSION The aneroid device had better accuracy than the digital device as compared to mercury sphygmomanometer and should be used for proper and better management.
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Affiliation(s)
- Bhaskar Shahbabu
- Junior Resident, Department of PSM, AIIH&PH , Kolkata, West Bengal, India
| | - Aparajita Dasgupta
- Professor and HOD, Department of PSM, AIIH&PH , Kolkata, West Bengal, India
| | - Kaushik Sarkar
- Junior Resident, Department of PSM, AIIH&PH , Kolkata, West Bengal, India
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Kim YK, Lim SI, Choi S, Cho IS, Park EH, An DJ. A novel assay for detecting canine parvovirus using a quartz crystal microbalance biosensor. J Virol Methods 2015; 219:23-27. [PMID: 25813597 PMCID: PMC7119597 DOI: 10.1016/j.jviromet.2015.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 11/20/2014] [Revised: 03/12/2015] [Accepted: 03/16/2015] [Indexed: 11/25/2022]
Abstract
ProLinker™ B, Calixcrown derivatives, makes antibody positioned be more regular with the right orientation on gold-coated quartz surface. The ProLinker-coated QCM showed a superior sensitivity and could detect at low CPV concentration than commercial immunochromatography Ag kit. The QCM biosensor described herein is eminently suitable for the rapid diagnosis of CPV infection with high sensitivity and specificity.
Rapid and accurate diagnosis is crucial to reduce both the shedding and clinical signs of canine parvovirus (CPV). The quartz crystal microbalance (QCM) is a new tool for measuring frequency changes associated with antigen–antibody interactions. In this study, the QCM biosensor and ProLinker™ B were used to rapidly diagnosis CPV infection. ProLinker™ B enables antibodies to be attached to a gold-coated quartz surface in a regular pattern and in the correct orientation for antigen binding. Receiver operating characteristics (ROC) curves were used to set a cut-off value using reference CPVs (two groups: one CPV-positive and one CPV-negative). The ROC curves overlapped and the point of intersection was used as the cut-off value. A QCM biosensor with a cut-off value of −205 Hz showed 95.4% (104/109) sensitivity and 98.0% (149/152) specificity when used to test 261 field fecal samples compared to PCR. In conclusion, the QCM biosensor described herein is eminently suitable for the rapid diagnosis of CPV infection with high sensitivity and specificity. Therefore, it is a promising analytical tool that will be useful for clinical diagnosis, which requires rapid and reliable analyses.
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Affiliation(s)
- Yong Kwan Kim
- Viral Disease Division, Animal and Plant Quarantine Agency, Anyang, Gyeonggi-do, 430-757, Republic of Korea
| | - Seong-In Lim
- Viral Disease Division, Animal and Plant Quarantine Agency, Anyang, Gyeonggi-do, 430-757, Republic of Korea
| | - Sarah Choi
- Viral Disease Division, Animal and Plant Quarantine Agency, Anyang, Gyeonggi-do, 430-757, Republic of Korea
| | - In-Soo Cho
- Viral Disease Division, Animal and Plant Quarantine Agency, Anyang, Gyeonggi-do, 430-757, Republic of Korea
| | - Eun-Hye Park
- The Catholic University of Korea, Gyeonggi-do, 420-743, Republic of Korea
| | - Dong-Jun An
- Viral Disease Division, Animal and Plant Quarantine Agency, Anyang, Gyeonggi-do, 430-757, Republic of Korea.
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Valdes AM, Meulenbelt I, Chassaing E, Arden NK, Bierma-Zeinstra S, Hart D, Hofman A, Karsdal M, Kloppenburg M, Kroon HM, Slagboom EP, Spector TD, Uitterlinden AG, van Meurs JB, Bay-Jensen AC. Large scale meta-analysis of urinary C-terminal telopeptide, serum cartilage oligomeric protein and matrix metalloprotease degraded type II collagen and their role in prevalence, incidence and progression of osteoarthritis. Osteoarthritis Cartilage 2014; 22:683-9. [PMID: 24576742 DOI: 10.1016/j.joca.2014.02.007] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [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: 10/21/2013] [Revised: 01/15/2014] [Accepted: 02/15/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the role of three cartilage-derived biomarkers on osteoarthritis (OA): urinary C-terminal telopeptide (uCTX-II), serum cartilage oligomeric protein (sCOMP), and serum MMP degraded type II collagen (sC2M). SUBJECTS AND METHODS Samples from 3582 individuals from the Rotterdam Study, the Genetics osteoArthritis and Progression (GARP), the Chingford Study and the TwinsUK cohort were assayed using enzyme-linked immune sorbent assays. Log10 of concentration levels were correlated with risk of hip, hand and knee OA, hip and knee OA severity and incidence, and progression of knee OA, adjusting for age, gender and body mass index (BMI). Results were meta-analysed to assess overall significance. RESULTS After adjusting for covariates, sCOMP was associated with knee OA and hip and knee OA incidence. Furthermore, sC2M was associated with knee OA incidence and progression. After adjustment for multiple tests (Bonferroni P < 0.002) only the association between sCOMP and knee OA remained significant (odds ratio (OR) = 3.26 (95%CI 1.63-10.1) P = 0.0008 for each standard deviation (SD) increase in biomarker levels). Levels of uCTX-II were significantly associated with risk of hand, hip and knee OA, progression and incidence of knee OA. A receiver operating characteristics (ROC) analysis showed a consistent improvement in prediction of knee OA progression from an average area under the curve (AUC) is 0.646 for age, sex and BMI alone to an AUC = 0.668 including uCTX-II for prediction. CONCLUSIONS uCTX-II is the most informative biochemical marker for prediction of OA. Both sCOMP and C2M showed some association with OA, thus indicating that they are descriptive of disease activity.
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Affiliation(s)
- A M Valdes
- Academic Rheumatology, University of Nottingham, Clinical Sciences Bld, Nottingham City Hospital, Nottingham NG5 1PB, UK; Dept of Twin Research, King's College London, London SE1 7EH, UK.
| | - I Meulenbelt
- Dept of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - N K Arden
- NIHR Musculoskeletal Biomedical Research Unit and ARUK Centre of Excellence for Sport, Exercise and Osteoarthritis University of Oxford, UK
| | - S Bierma-Zeinstra
- Dept of General Practice and Dept of Orthopaedics, Erasmus MC, Rotterdam, The Netherlands
| | - D Hart
- Dept of Twin Research, King's College London, London SE1 7EH, UK
| | - A Hofman
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - M Karsdal
- Rheumatology, Nordic Bioscience Biomarkers and Research, Herlev, Denmark
| | - M Kloppenburg
- Dept of Rheumatology and Dept of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - H M Kroon
- Dept of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - E P Slagboom
- Dept of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - T D Spector
- Dept of Twin Research, King's College London, London SE1 7EH, UK
| | - A G Uitterlinden
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands; Dept of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - J B van Meurs
- Dept of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - A C Bay-Jensen
- Rheumatology, Nordic Bioscience Biomarkers and Research, Herlev, Denmark
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