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Brigham D, Shah Y, Singh K, Pavkovic I, Karkare S, Kothare SV. Comparison of artifacts between paste and collodion method of electrode application in pediatric EEG. Clin Neurophysiol Pract 2020; 5:12-15. [PMID: 31890993 PMCID: PMC6931097 DOI: 10.1016/j.cnp.2019.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 11/29/2022] Open
Abstract
This study was done to evaluate differences in artifacts between the collodion and paste method of EEG administration. Electrode problems are common with both collodion and paste in prolonged AEEG monitoring. For studies less than 24 h, collodion may be a better alternative.
Objectives Children pose challenges to obtain quality EEG data due to excessive artifact. Collodion is used in EEG electrodes due to its water resistance and strong adhesive qualities. This study was done to evaluate differences in artifacts between the collodion and paste method. Methods 115 subjects (children age >3 years) were randomized into paste and collodion groups and artifacts evaluated at baseline and every hour over 30 s increments. Age, sleep state, and number of electrodes with artifact were also documented. T-test was performed to determine differences in the various parameters between the two groups. Results 61 subjects were in the paste group and 54 in the collodion group. Mean of total seconds of artifact from 0 to 24 h were 41.8 s in paste group versus 30.3 s in collodion group (P = 0.02). Children >11 years old had less artifact than younger children from 0 to 24 h (24.3 versus 41.2 s, P = 0.03), and from 24 to 48 h (33.1 versus 43.1 s, P = 0.03). There was a significant effect of sleep vs. awake state recordings on artifact from 0 to 24 h (30.3 versus 50.2 s, P = 0.01). Conclusion Electrode problems are common with both collodion and paste in prolonged AEEG monitoring. However, for studies less than 24 h, collodion may be a better alternative. Significance Our study provides evidence that in some cases collodion may be a better alternative to paste in terms of decreased artifacts.
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Lowe J, Singh K, Sukhraj K, Rambaran P, Lebovic G, Ostrow B. Introduction of a national program for HbA1c testing in Guyana South America and initial results. Diabetes Res Clin Pract 2019; 158:107929. [PMID: 31738996 DOI: 10.1016/j.diabres.2019.107929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 10/08/2019] [Accepted: 11/13/2019] [Indexed: 11/15/2022]
Abstract
Diabetes is an increasing challenge for low- and middle-income countries (LMIC) and access to HbA1c testing is limited. HbA1c, a measure of glycaemic control averaged over 3 months, provides both clinicians and policymakers with a tool to identify the risk of long-term diabetes comorbidity. We describe the steps used to implement standardised testing in Guyana South America and the initial results according to a locally developed protocol as part of a country-wide project to improve the care of people with all forms of diabetes The steps identified include: a standardised method traceable to a recognized international reference standard, participation in a quality control cycle with an international reference laboratory, a clinical pathway for testing to reduce inappropriate use and minimize resource wastage, training of technicians in operation and maintenance of equipment, identification of a suitable space with constant power supply, a reliable procurement system, education of healthcare professionals on interpretation and follow-up of results and feedback of programme results to improve clinical practice. Some steps for implementation of the national HbA1c testing program were initiated better than others. Initial unreliability of the service undermined confidence in the system. Failure to follow the testing protocol led to some patients being tested too soon and others too late. Cost of reagents was about 5.60 USD/test. We trained 340 people in diabetes care and knowledge was improved but were unable to assess whether it was appropriately applied. Over one third of people tested in the 30-70 age group had an HbA1c over 9% (75 mmol/mol) and this did not improve over the 5 years of testing. Despite the difficulties we think our unique experience of implementation of a nationwide HbA1c testing programme has important lessons for other LMICs.
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Singh K, Singh SP, Kaur G, Bose K. Association of body mass index and upper arm body composition with depressive symptoms in old age home and family based elderly. HOMO-JOURNAL OF COMPARATIVE HUMAN BIOLOGY 2019; 70:155-162. [PMID: 31486826 DOI: 10.1127/homo/2019/1054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 04/19/2019] [Accepted: 04/24/2019] [Indexed: 11/05/2022]
Abstract
The following study was designed to find out the association of the mid-upper arm body composition and body mass index (BMI) with depressive symptoms among the old age home based (group 1) and family based elderly (group 2) subjects. In group 1 elderly males, 51.5% were showing mild depressive symptoms and 17% were showing moderate to severe depressive symptoms. On the other hand, among group 2 elderly males, prevalence of mild depressive symptoms was in 27% and moderate to severe depressive symptoms was in 4.5% of the subjects. Among elderly with and without depressive symptoms, BMI, waist-hip ratio (WHR), arm muscle circumference (AMC), arm muscle area (AMA), arm fat area (AFA), fat mass (FM), muscle mass and bone mass were significantly (p < 0.01) lesser among group 1 as compared to group 2. Among group 1, the AFA (R2 change = 0.178), AMC (R2 change = 0.035), AMA (R2 change = 0.032), FM (R2 change = 0.022) and muscle mass (R2 change = 0.019) have highest contribution to the variance of depressive symptoms. On the other hand, BMI (R2 change = 0.04) and WHR (R2 change = 0.03) had the highest, though small, contribution to the variance of depressive symptoms among group 2. The upper arm body composition indices were better indicator of depressive symptoms in group 1, and BMI and WHR were better indicators of depressive symptoms in group 2. Therefore, among group 1 subjects, the upper arm body composition indices prove to be better regular health monitoring indices as compared to traditionally used BMI and WHR.
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Singh K, Madarati H, Sparring T, Kretz C. P11. Abstract Title: Investigating the resistance of ADAMTS13 towards Alpha 2-Macroglobulin. Thromb Res 2019. [DOI: 10.1016/j.thromres.2019.09.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sparring T, Kretz C, Singh K, Madarati H. P13. Abstract Title: Deep Mutational Scan of VWF to Define Mutations that Enhance or Impair Secretion. Thromb Res 2019. [DOI: 10.1016/j.thromres.2019.09.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Jacques H, Gaywood J, Singh K. A survey of frailty services in acute NHS hospitals in the West Midlands. Clin Med (Lond) 2019; 19:423-424. [PMID: 31530698 DOI: 10.7861/clinmed.2019-0154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Eksambe P, Shah YD, Singh K, Stennett J, Lauretta E, Sy-Kho RM, Kim J, Ascher C, Karkare S, Kothare S. Quality improvement strategies improve pediatric neurology inpatient discharges before noon. Neurol Clin Pract 2019; 10:214-221. [PMID: 32642323 DOI: 10.1212/cpj.0000000000000715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 06/17/2019] [Indexed: 11/15/2022]
Abstract
Background Early hospital discharge is an important quality improvement (QI) measure that has not been well studied in pediatric neurology. The objective of our study was to implement strategies to improve hospital discharge times for patients admitted to the pediatric neurology service. Methods This was a pilot QI study of hospital discharge before noon (DBN) in pediatric neurology patients admitted to a tertiary care children's hospital. The study duration was 6 months (12/2017-05/2018)-first 3 months preintervention and next 3 months postintervention. Strategies focusing on preidentifying MRI candidates and those needing home care services, identifying pharmacy preference, reviewing overnight video EEGs first thing in the morning, and implementing morning huddles, etc., were implemented. Demographic and clinical data were collected, including age, sex, race, and reasons for delay in discharge. Chi-square, t test, and survival analysis (log-rank test) were performed to determine differences between baseline and post-QI implementation. Results One hundred ninety-one patients were included in the study. There were 76 participants before the implementation of the study and 115 participants during the study. DBN percentage increased in the intervention period, from a baseline of 40.7% to 60.8%. Survival analysis showed that the discharge time after QI implementation improved significantly (p = 0.043). Conclusions Our study successfully identified the factors associated with late discharge and developed effective strategies to improve DBN in an inpatient pediatric neurology setting.
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Kaur M, Singh K. Review on titanium and titanium based alloys as biomaterials for orthopaedic applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:844-862. [PMID: 31147056 DOI: 10.1016/j.msec.2019.04.064] [Citation(s) in RCA: 385] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/20/2019] [Accepted: 04/20/2019] [Indexed: 02/07/2023]
Abstract
Variety of implant materials have been employed in various disciplines of medical science depending on the requirement of a particular application. Metals, alloys, ceramics, and polymers are the commonly used biomaterials. The main focus of this study is to review the various structural and microstructural properties of titanium and titanium based alloys used as orthopaedic implants. Orthopaedic implants need to possess certain important qualities to ensure their safe and effective use. These properties like the biocompatibility, relevant mechanical properties, high corrosion and wear resistance and osseointegration are summarized in this review. Various attempts to improve upon these properties like different processing routes, surface modifications have also been inculcated in the paper to provide an insight into the extent of research and effort that has been put into developing a highly superior titanium orthopaedic implant.
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Reed W, Klima S, Shahan M, Ross G, Singh K, Cross R, Grounds T. A field study of a roof bolter canopy air curtain (2nd generation) for respirable coal mine dust control. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY 2019; 29:711-720. [PMID: 31850153 PMCID: PMC6917209 DOI: 10.1016/j.ijmst.2019.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
A 2nd generation roof bolter canopy air curtain (CAC) design was tested by National Institute for Occupational Safety and Health (NIOSH) at a Midwestern underground coal mine. During the study, the roof bolter never operated downwind of the continuous miner. Using a combination of personal Data Rams (pDR) and gravimetric samplers, the dust control efficiency of the roof bolter CAC was ascertained. Performance evaluation was determined using three methods: (1) comparing roof bolter operator concentrations underneath the CAC to roof bolter concentrations outside the CAC, (2) comparing roof bolter operator concentrations underneath the CAC to the concentrations at the rear of the bolter, and finally, (3) using the gravimetric data directly underneath the CAC to correct roof bolter operator concentrations underneath the CAC and comparing them to the concentrations at the rear of the bolter. Method 1 dust control efficiencies ranged from -53.9% to 60.4%. Method 2 efficiencies ranged from -150.5% to 52.2%, and Method 3 efficiencies ranged from 40.7% to 91%. Reasons for negative and low dust control efficiencies are provided in this paper and include: incorrect sampling locations, large distance between CAC and operator, and contamination of intake air from line curtain. Low dust concentrations encountered during the testing made it difficult to discern whether differences in concentrations were due to the CAC or due to variances inherent in experimental dust measurement. However, the analyses, especially the Method 3 analysis, show that the CAC can be an effective dust control device.
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Pandey R, Maity P, Singh K, Krug L, Schatz S, Wlaschek M, Scharffetter-Kochanek K. 367 Apremilast Switches Pro-Inflammatory M1 Macrophages to Anti-Inflammatory M2 Macrophages – Transcription Factors Beyond CREB. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Reed WR, Shahan M, Ross G, Singh K, Cross R, Grounds T. Field investigation to measure airflow velocities of a ram dump car using circular routing at a Midwestern underground coal mine: a case study. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:515. [PMID: 31346812 PMCID: PMC6697381 DOI: 10.1007/s10661-019-7624-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
Due to the successful application of roof bolter canopy air curtains (CACs) to protect roof bolter operators from high levels of coal mine respirable dust, a shuttle car CAC is currently being developed. Since a shuttle car consistently trams from the continuous miner to the feeder and back at a speed up to 9.66 kph (6 mph) or 2.68 m/s (528 fpm), it is thought that the shuttle car may encounter very high air velocities (mine ventilation air velocity + max shuttle speed (2.68 m/s (528 fpm)). Past research and preliminary lab testing showed that CAC protection in high interference air velocities is difficult to achieve. Therefore, testing was conducted at a Midwestern US coal mine to determine the air velocities their shuttle car actually encounters. This mine used ram dump cars as their shuttle cars. Results showed that coal mine dust exposure is generally very low at the feeder and when tramming. Elevated concentrations are encountered at the ram dump car operator position when the car is being loaded by the continuous miner. Recorded air velocities while tramming did not reach the max air velocity of mine ventilation air velocity + 2.68 m/s (528 fpm) calculated as 3.32 m/s (653 fpm). High velocities, while encountered, were of low frequency and associated with low respirable coal mine dust concentrations. Therefore, using this new information, designing the shuttle car CAC for maximum interference air velocity may not be as important as previously thought.
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Gaurav ,, Singh JP, Sahota PP, Singh K. Development of Composite Radial Filter for Recharging Aquifers with Canal Water. CURR SCI INDIA 2019. [DOI: 10.18520/cs/v117/i1/87-93] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Maung T, Singh K. 1REGULAR MONITORING WITH STOOL CHART PREVENTS CONSTIPATION, URINARY RETENSION AND DELIRIUM IN ELDERLY PATIENTS: AN AUDIT LEADING TO CLINICAL EFFECTIVENESS, EFFICIENCY AND PATIENT CENTREDNESS. Age Ageing 2019. [DOI: 10.1093/ageing/afz055.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Maung TZ, Singh K. Regular monitoring with stool chart prevents constipation, urinary retention and delirium in elderly patients: an audit leading to clinical effectiveness, efficiency and patient centredness. Future Healthc J 2019; 6:3. [PMID: 31572904 PMCID: PMC6752410 DOI: 10.7861/futurehosp.6-2s-s3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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Singh K, Arroyo J, Saxton E, Rawal D, Patibandla S. Performance evaluation of the ADVIA Centaur Zika Test. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.1135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Maung TZ, Singh K. Regular monitoring with stool chart prevents constipation, urinary retention and delirium in elderly patients: an audit leading to clinical effectiveness, efficiency and patient centredness. Future Healthc J 2019. [DOI: 10.7861/futurehealth.6-2-s3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Scatola A, Singh A, Singh K, Singh N, Meraj P. Effect of Time from Cardiogenic Shock to Initiation of Complete Cardiovascular Support on Survival: “Shock to Support Time”. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Singh K, Martinell M, Luo Z, Espes D, Stålhammar J, Sandler S, Carlsson PO. Cellular immunological changes in patients with LADA are a mixture of those seen in patients with type 1 and type 2 diabetes. Clin Exp Immunol 2019; 197:64-73. [PMID: 30843600 PMCID: PMC6591143 DOI: 10.1111/cei.13289] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2019] [Indexed: 12/19/2022] Open
Abstract
There is currently scarce knowledge of the immunological profile of patients with latent autoimmune diabetes mellitus in the adult (LADA) when compared with healthy controls (HC) and patients with classical type 1 diabetes (T1D) and type 2 diabetes (T2D). The objective of this study was to investigate the cellular immunological profile of LADA patients and compare to HC and patients with T1D and T2D. All patients and age‐matched HC were recruited from Uppsala County. Peripheral blood mononuclear cells were isolated from freshly collected blood to determine the proportions of immune cells by flow cytometry. Plasma concentrations of the cytokine interleukin (IL)‐35 were measured by enzyme‐linked immunosorbent assay (ELISA). The proportion of CD11c+CD123– antigen‐presenting cells (APCs) was lower, while the proportions of CD11c+CD123+ APCs and IL‐35+ tolerogenic APCs were higher in LADA patients than in T1D patients. The proportion of CD3–CD56highCD16+ natural killer (NK) cells was higher in LADA patients than in both HC and T2D patients. The frequency of IL‐35+ regulatory T cells and plasma IL‐35 concentrations in LADA patients were similar to those in T1D and T2D patients, but lower than in HC. The proportion of regulatory B cells in LADA patients was higher than in healthy controls, T1D and T2D patients, and the frequency of IL‐35+ regulatory B cells was higher than in T1D patients. LADA presents a mixed cellular immunological pattern with features overlapping with both T1D and T2D.
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Hong A, Shah Y, Singh K, Karkare S, Kothare S. Characteristics and predictors of 7- and 30-day hospital readmissions to pediatric neurology. Neurology 2019; 92:e1926-e1932. [DOI: 10.1212/wnl.0000000000007280] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/26/2018] [Indexed: 01/19/2023] Open
Abstract
ObjectiveHospital readmission is an important quality improvement measure that has not been well-studied in pediatric neurology. We examined predictors of 7-day and 30-day readmissions for pediatric patients hospitalized with a neurologic diagnosis.MethodsThis was a retrospective study of hospital readmission rates in pediatric neurology patients admitted to a tertiary children's hospital from January 2017 to December 2017. Inclusion criteria were age ≤18 years and a primary neurologic diagnosis on admission, with an unplanned readmission within 7 or 30 days. Demographic and clinical data were collected, including age, sex, income, insurance type, discharge occurring on a weekend, admission to the pediatric intensive care unit (PICU), use of multiple antiepileptic drugs (AEDs), and involvement of multiple subspecialties.ResultsThere were 923 neurology admissions, and 64 readmissions within 30 days. Total unplanned readmission rate was 6.9%, with 56% (36/64) readmitted within 30 days, 44% (28/64) readmitted within 7 days, and 11% (7/64) admitted multiple times within 30 days. The most common readmission diagnosis was seizure (62%), followed by other neurologic diagnosis (21%), headache (8%), encephalitis/meningitis (7%), stroke (1%), and ataxia (1%). Readmission was significantly associated with multiple AED, PICU admission, seizure with major complication or comorbidity, and presence of a major complication or comorbidity irrespective of diagnosis (p < 0.05).ConclusionsThis study identifies factors associated with higher rates of readmission for pediatric neurology patients. Patients with epilepsy and chronic neurologic conditions should be targeted for future discharge-related interventions to reduce hospital readmission and ensure safe transitions from the inpatient to the outpatient setting.
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Singh K, Al Khoury A, Kurti Z, Gonczi L, Reinglas J, Verdon C, Kohen R, Bessissow T, Afif W, Wild G, Seidman EG, Bitton A, Lakatos P. A134 HIGH ADHERENCE TO SURVEILLANCE GUIDELINES IN IBD RESULTS IN LOW CRC AND DYSPLASIA RATES, WHILE RATES OF DYSPLASIA AND CANCER ARE LOW BEFORE THE SUGGESTED START OF SURVEILLANCE. RESULTS FROM A TERTIARY IBD CENTER. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Singh K, Al Khoury A, Kurti Z, Gonczi L, Reinglas J, Verdon C, Kohen R, Bessissow T, Afif W, Wild G, Seidman EG, Bitton A, Lakatos P. A76 HIGH ADHERENCE TO SURVEILLANCE GUIDELINES IN IBD RESULTS IN LOW CRC AND DYSPLASIA RATES, WHILE RATES OF DYSPLASIA AND CANCER ARE LOW BEFORE THE SUGGESTED START OF SURVEILLANCE. RESULTS FROM A TERTIARY IBD CENTER. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Al Khoury A, Singh K, Kurti Z, Gonczi L, Reinglas J, Verdon C, Kohen R, Bessissow T, Afif W, Wild G, Seidman EG, Bitton A, Lakatos P. A105 HIGH ADHERENCE TO SURVEILLANCE GUIDELINES IN IBD RESULTS IN LOW CRC AND DYSPLASIA RATES, WHILE RATES OF DYSPLASIA AND CANCER ARE LOW BEFORE THE SUGGESTED START OF SURVEILLANCE. RESULTS FROM A TERTIARY IBD CENTER. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kaur P, Singh K. Effect of Ni substitution on the structural and optical properties of SrZr1-xNixO3 (0.05≤x≤0.20) perovskites. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mohanty SK, Tiwari A, Singh C, Walsh C, Chuang F, Kim E, Singh K, Dadmanesh F. High-grade ovarian serous carcinomas: Significant correlation of histologic patterns with IMP3 and E-Cadherin predicting disease recurrence and survival. Ann Diagn Pathol 2019; 40:30-39. [PMID: 30921622 DOI: 10.1016/j.anndiagpath.2019.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 01/27/2019] [Accepted: 02/17/2019] [Indexed: 12/12/2022]
Abstract
Most high-grade serous carcinomas (HGSC) of the ovary are advanced stage tumors with early recurrences. However, some tumors do not recur and have a better survival. We identified such cases of HGSC and compared those with the cases that recurred and assessed the relationship between patterns of invasion (intracystic, IC; micropapillary, MP; nonpapillary, NP) with IMP3 and E-Cadherin expression, and evaluated their predictive role in recurrence and survival. The study comprised of seventeen tumors recurred within 18 months of follow-up and 14 cases that did not recur with a minimum follow-up of 49 months. 73% tumors with predominantly MP pattern recurred, while only 27% of non-recurrent tumors showed this pattern. In contrast, predominant NP and IC patterns were seen in 71% of the non-recurrent and in 35% of recurrent tumors. 67.7% tumors expressed IMP3 and all cases expressed E-Cadherin. The tumors with a higher percentage of destructive invasion showed higher IMP3 positivity and greater chances of recurrence, whereas tumors with higher percentage of pushing invasion showed lower IMP3 positivity and lesser chances of recurrence (p = 0.02). IMP3-negative tumors had lower odds of recurrence than IMP3-positive ones (p = 0.01). The patients with negative IMP3 staining had a significantly higher OS than those with IMP3 positive tumors (p = 0.01), regardless of the histologic patterns. Also, reduction in E-Cadherin staining in the metastatic site led to poor DFS (p = 0.016) and OS (p = 0.006). IMP3 may serve as a useful prognostic marker that can stratify patients of advanced stage, high-grade serous carcinomas into two distinct subsets: majority with early recurrence with an infiltrative pattern of invasion and IMP3 positivity particularly in the MP areas; and a smaller subset that do not show early recurrence having pushing borders and are IMP3 negative. Also, E-Cadherin showed significant decrease in expression in the metastatic site of the recurrent cases.
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Singh K, Dhar A, Srivastava A, Ranjan P, Kataria K, Gour KS. Abstract P3-14-04: Prevention of lymphedema in patients undergoing axillary dissection for breast cancer by benzathine penicillin: A non-inferiority randomised controlled trial. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p3-14-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Axillary lymph node dissection (ALND) is performed for axillary lymph nodal metastasis. Major complication of ALND is lymphedema. Lymphedema is a morbid condition associated with impaired activities of daily life and deterioration in quality of life (QOL). Olszewski et al (Lymphology. 2005 Jun;38(2):66–80) have shown that low-grade staphylococcal infection is a risk factor for lymphedema. Hence, we embarked upon a randomised controlled trial with non-inferiority hypothesis to evaluate efficacy of injection Benzathine penicillin in preventing breast cancer related lymphedema.
Methods: In this 2 group, open label, parallel design randomized controlled trial; patients undergoing ALND for breast cancer were included. Patients were randomized using block randomization to either injection Benzathine penicillin group or in control group. Patients in the penicillin group received injection Benzathine penicillin 1.2 million units as deep intramuscular injection after antibiotic sensitivity testing at intervals of 3 weeks. Primary endpoint was development of lymphedema at 6 months follow up. Analyses were done on an intention to treat basis. Lymphedema was defined as increase in >200ml of volume on water displacement method and or increase in arm circumference of >2cm from pre surgery values (Lancet Oncol. 2013 May 1;14(6):500–15).
Findings: Between July 2016 and December 2017, 83 ladies were randomly allocated, 40 in the penicillin group and 43 in control group. At 6 months follow up; a total of 15 (18.07%) patients had lymphedema. Out of them 5 patients were in penicillin group and 10 in the control group. Cellulitis was seen in 2/3rd of patients (10 out of 15) having lymphedema. The relative risk of cellulitis in penicillin group was 0.119 with 95% CI of (0.016-0.901) and prevented fraction of 0.881. Other factors like radiotherapy, type of surgery for primary tumor, extent of axillary dissection and type of chemotherapy were comparable in both groups. None of the patients receiving penicillin have any adverse effect or allergic reaction to the drug during the study period.
Comparison of lymphedema and cellulitis in two groupsOutcome Penicillin groupControl groupRR ( 95% CI)PFLymphedemaPresent05100.538 (0.201-1.437)0.462 Absent3533 CellulitisPresent01090.119 (0.016-0.901)0.881 Absent3934 RR: Relative risk, PF: Prevented fraction, CI: Confidence interval
Conclusion: Penicillin administration in patients undergoing axillary lymph node dissection is safe and significantly reduces risk of lymphedema and cellulitis.
Novelty: This is the first randomised trial demonstrating the benefit of long term administration of penicillin in reducing lymphedema and cellulitis.
Citation Format: Singh K, Dhar A, Srivastava A, Ranjan P, Kataria K, Gour KS. Prevention of lymphedema in patients undergoing axillary dissection for breast cancer by benzathine penicillin: A non-inferiority randomised controlled trial [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P3-14-04.
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