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Krumerman A, Di Biase L, Gerstenfeld E, Dickfeld T, Verma N, Liberman L, Amara R, Kacorri A, Crosson L, Wilk A, Ferrick KJ. Premature Ventricular Complexes: Assessing Burden Density in a Large National Cohort to Better Define Optimal ECG Monitoring Duration. Heart Rhythm 2024:S1547-5271(24)02393-2. [PMID: 38641221 DOI: 10.1016/j.hrthm.2024.04.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND Premature ventricular contractions (PVCs) burden is a risk factor for heart failure and cardiovascular death in patients with structural heart disease. Long-term ECG monitoring can have a significant impact on PVC burden evaluation by further defining PVC distribution patterns. OBJECTIVE This study aimed to ascertain the optimal duration of ECG monitoring to characterize PVC burden and understand clinical characteristics associated with frequent PVCs and NSVT in a large US cohort. METHODS Commercial data (iRhythm's Zio patch) from June 2011 to April 2022 were analyzed. Inclusion criteria were age >18 years, PVC burden ≥5%, and wear period ≥13 days. PVC burden cutoffs were determined based on AHA/ACC/HRS guidelines for very frequent PVCs (10,000-20,000 over 24 hours). Patients were categorized by PVC densities : Low (<10%), Moderate (10% to <20%) and High (≥20%). Mean measured error was assessed at baseline and daily until wear period's end for overall PVC Burden and different PVC densities. RESULTS Analysis of 106,705 patch monitors revealed a study population with mean age of 70.6±14.6 years; 33.6% female. PVC burden was higher in males and those >65 years of age. PVC burden mean error decreased from 2.9% at 24 hours to 1.3% at 7 days, and 0.7% at 10 days. Number of VT episodes per patient increased with increasing PVC burden (p<0.0001). CONCLUSION Extending ambulatory monitoring beyond 24 hours to 7 days or more, improves accuracy of assessing PVC burden. VT frequency and duration vary based on initial PVC density, highlighting the need for prolonged cardiac monitoring.
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Affiliation(s)
| | | | | | - Timm Dickfeld
- University of Maryland Medical Center, Baltimore, MD
| | | | | | - Richard Amara
- University of Maryland Medical Center, Baltimore, MD
| | | | | | - Alan Wilk
- iRhythm Technologies, San Francisco, CA
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Bhowmick S, Graham RD, Verma N, Trevathan JK, Franke M, Nieuwoudt S, Fisher LE, Shoffstall AJ, Weber DJ, Ludwig KA, Lempka SF. Computational modeling of dorsal root ganglion stimulation using an Injectrode. J Neural Eng 2024; 21:026039. [PMID: 38502956 PMCID: PMC11007586 DOI: 10.1088/1741-2552/ad357f] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/23/2024] [Accepted: 03/19/2024] [Indexed: 03/21/2024]
Abstract
Objective.Minimally invasive neuromodulation therapies like the Injectrode, which is composed of a tightly wound polymer-coated Platinum/Iridium microcoil, offer a low-risk approach for administering electrical stimulation to the dorsal root ganglion (DRG). This flexible electrode is aimed to conform to the DRG. The stimulation occurs through a transcutaneous electrical stimulation (TES) patch, which subsequently transmits the stimulation to the Injectrode via a subcutaneous metal collector. However, it is important to note that the effectiveness of stimulation through TES relies on the specific geometrical configurations of the Injectrode-collector-patch system. Hence, there is a need to investigate which design parameters influence the activation of targeted neural structures.Approach.We employed a hybrid computational modeling approach to analyze the impact of Injectrode system design parameters on charge delivery and neural response to stimulation. We constructed multiple finite element method models of DRG stimulation, followed by the implementation of multi-compartment models of DRG neurons. By calculating potential distribution during monopolar stimulation, we simulated neural responses using various parameters based on prior acute experiments. Additionally, we developed a canonical monopolar stimulation and full-scale model of bipolar bilateral L5 DRG stimulation, allowing us to investigate how design parameters like Injectrode size and orientation influenced neural activation thresholds.Main results.Our findings were in accordance with acute experimental measurements and indicate that the minimally invasive Injectrode system predominantly engages large-diameter afferents (Aβ-fibers). These activation thresholds were contingent upon the surface area of the Injectrode. As the charge density decreased due to increasing surface area, there was a corresponding expansion in the stimulation amplitude range before triggering any pain-related mechanoreceptor (Aδ-fibers) activity.Significance.The Injectrode demonstrates potential as a viable technology for minimally invasive stimulation of the DRG. Our findings indicate that utilizing a larger surface area Injectrode enhances the therapeutic margin, effectively distinguishing the desired Aβactivation from the undesired Aδ-fiber activation.
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Affiliation(s)
- Sauradeep Bhowmick
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States of America
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States of America
| | - Robert D Graham
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States of America
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States of America
| | - Nishant Verma
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe)–Madison, Madison, WI, United States of America
| | - James K Trevathan
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe)–Madison, Madison, WI, United States of America
| | | | | | - Lee E Fisher
- Rehab Neural Engineering Labs (RNEL), Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Andrew J Shoffstall
- Neuronoff Inc., Cleveland, OH, United States of America
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States of America
| | - Douglas J Weber
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, United States of America
- Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, United States of America
| | - Kip A Ludwig
- Department of Biomedical Engineering, University of Wisconsin–Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe)–Madison, Madison, WI, United States of America
- Department of Neurosurgery, University of Wisconsin–Madison, Madison, WI, United States of America
| | - Scott F Lempka
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States of America
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, United States of America
- Department of Anesthesiology, University of Michigan, Ann Arbor, MI, United States of America
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Sink J, Peigh G, Speakman B, Banno J, Sanders D, Nso N, Waits G, Lohrmann G, Elsayed M, Carneiro H, Baman J, Pfenniger A, Patil KD, Arora R, Kim SS, Chicos AB, Lin AC, Passman RS, Knight BP, Dandamudi S, Kaplan RM, Huang H, Wasserlauf J, Verma N. Correlation between high- and low-voltage impedance measurements following subcutaneous implantable cardioverter-defibrillator implantation. Heart Rhythm 2024; 21:492-494. [PMID: 38159788 DOI: 10.1016/j.hrthm.2023.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/19/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Affiliation(s)
- Joshua Sink
- Department of Internal Medicine, Northwestern University, Chicago, Illinois
| | - Graham Peigh
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | | | - Joseph Banno
- Division of Cardiology, Corewell Health, Grand Rapids, Michigan
| | - David Sanders
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
| | - Nso Nso
- Division of Cardiology, Northshore University Health System, Evanston, Illinois
| | - George Waits
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Graham Lohrmann
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | - Mahmoud Elsayed
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | - Herman Carneiro
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | - Jayson Baman
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | - Anna Pfenniger
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | | | - Rishi Arora
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | - Susan S Kim
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | | | - Albert C Lin
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | - Rod S Passman
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | - Bradley P Knight
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | | | - Rachel M Kaplan
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Henry Huang
- Division of Cardiology, Rush University Medical Center, Chicago, Illinois
| | - Jeremiah Wasserlauf
- Division of Cardiology, Northshore University Health System, Evanston, Illinois
| | - Nishant Verma
- Division of Cardiology, Northwestern University, Chicago, Illinois.
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Vinayaraj EV, Thakur CK, Negi P, Sreenath K, Upadhyay P, Verma N, Das BK, Kabra SK, Wig N, Chaudhry R. Epidemiological, clinical, and laboratory characteristics of human granulocytic anaplasmosis in North India. J Clin Microbiol 2024; 62:e0104823. [PMID: 38329335 PMCID: PMC10935655 DOI: 10.1128/jcm.01048-23] [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: 08/10/2023] [Accepted: 12/22/2023] [Indexed: 02/09/2024] Open
Abstract
Human granulocytic anaplasmosis (HGA) is an emerging, rickettsial tick-borne disease caused by Anaplasma phagocytophilum. Sero-epidemiological data demonstrate that this pathogen has a worldwide distribution. The diagnosis of HGA requires a high index of clinical suspicion, even in endemic areas. In recent years, HGA has increasingly been reported from Asia and described in China, Japan, and Korea. We serologically and molecularly screened 467 patients with clinical suspicion of Anaplasmosis. The present study describes the epidemiology, clinical, and laboratory details of 6 confirmed and 43 probable cases of human granulocytic anaplasmosis. One of the HGA patients developed secondary invasive opportunistic Aspergillus fumigatus and Acinetobacter baumanii infection during the illness, which resulted in a fatal infection. The HGA patients without severe complications had excellent treatment responses to doxycycline. The emergence of this newly recognized tick-borne zoonotic HGA in North India is a significant concern for public health and is likely underdiagnosed, underreported, and untreated. Hence, it is also essential to establish a well-coordinated system for actively conducting tick surveillance, especially in the forested areas of the country.IMPORTANCEThe results of the present study show the clinical and laboratory evidence of autochthonous cases of Anaplasma phagocytophilum in North India. The results suggest the possibility of underdiagnosis of HGA in this geographical area. One of the HGA patients developed secondary invasive opportunistic Aspergillus fumigatus and Acinetobacter baumanii infection during the illness, which resulted in a fatal infection.
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Affiliation(s)
- E. V. Vinayaraj
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Chandan Kumar Thakur
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Preeti Negi
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - K. Sreenath
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Priyanka Upadhyay
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Nishant Verma
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Bimal Kumar Das
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - S. K. Kabra
- Department of Paediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Naveet Wig
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Rama Chaudhry
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
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Steinberg BA, Holubkov R, Deering T, Groh CA, Mittal S, Kennedy R, Pokharel P, Perez M, Savona S, Verma N, Watt K, Piccini JP, Bunch TJ. Expedited loading with intravenous sotalol is safe and feasible-primary results of the Prospective Evaluation Analysis and Kinetics of IV Sotalol (PEAKS) Registry. Heart Rhythm 2024:S1547-5271(24)00218-2. [PMID: 38417598 DOI: 10.1016/j.hrthm.2024.02.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND Loading of oral sotalol for atrial fibrillation requires 3 days, frequently in the hospital, to achieve steady state. The Food and Drug Administration approved loading with intravenous (IV) sotalol through model-informed development, without patient data. OBJECTIVE We present results of the first multicenter evaluation of this recent labeling for IV sotalol. METHODS The Prospective Evaluation Analysis and Kinetics of IV Sotalol (PEAKS) Registry was a multicenter observational registry of patients undergoing elective IV sotalol load for atrial arrhythmias. Outcomes, measured from hospital admission until first outpatient follow-up, included adverse arrhythmia events, efficacy, and length of stay. RESULTS Of 167 consecutively enrolled patients, 23% were female; the median age was 68 (interquartile range, 61-74) years, and the median CHA2DS2-VASc score was 3 (interquartile range, 2-4). Overall, 99% were admitted for sotalol initiation (1% for dose escalation), with a target oral sotalol dose of either 80 mg twice daily (85 [51%]) or 120 mg twice daily (78 [47%]); 62 patients (37%) had an estimated creatinine clearance ≤90 mL/min. On presentation, 40% of patients were in sinus rhythm, whereas 26% underwent cardioversion before sotalol infusion. In 2 patients, sotalol infusion was stopped for bradycardia or hypotension. In 6 patients, sotalol was discontinued before discharge because of QTc prolongation (3), bradycardia (1), or recurrent atrial arrhythmia (2). The mean length of stay was 1.1 days, and 95% (n = 159) were discharged within 1 night. CONCLUSION IV sotalol loading is safe and feasible for atrial arrhythmias, with low rates of adverse events, and yields shorter hospitalizations. More data are needed on the minimal duration required for monitoring in the hospital.
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Affiliation(s)
- Benjamin A Steinberg
- Division of Cardiovascular Medicine, University of Utah Health, Salt Lake City, Utah.
| | - Richard Holubkov
- Data Coordinating Center, Department of Pediatrics, Spencer Eccles Fox School of Medicine, University of Utah, Salt Lake City, Utah
| | | | - Christopher A Groh
- Division of Cardiovascular Medicine, University of Utah Health, Salt Lake City, Utah
| | | | | | | | - Marco Perez
- Department of Medicine, Stanford University, Stanford, California
| | - Salvatore Savona
- Department of Medicine, The Ohio State University, Columbus, Ohio
| | - Nishant Verma
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Kevin Watt
- Division of Clinical Pharmacology, Department of Pediatrics, Spencer Eccles Fox School of Medicine, University of Utah, Salt Lake City, Utah
| | - Jonathan P Piccini
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - T Jared Bunch
- Division of Cardiovascular Medicine, University of Utah Health, Salt Lake City, Utah
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Singh A, Rawat S, Kushwaha R, Jain M, Verma SP, Verma N, Singh US. Bone marrow metastasis in nonhematological malignancies: A study from tertiary care center. Ann Afr Med 2024; 23:91-99. [PMID: 38358178 PMCID: PMC10922175 DOI: 10.4103/aam.aam_55_23] [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: 04/16/2023] [Accepted: 05/16/2023] [Indexed: 02/16/2024] Open
Abstract
Introduction Metastatic cancer presents a treatment challenge to clinicians, particularly for patients with bone marrow infiltration. For tumor staging, therapy selection, and prognosis risk stratification, the status of the bone marrow should be known for the presence or absence of metastasis. The study aimed to evaluate the hematological findings and comprehensive analysis of bone marrow in cases of nonhematological malignancies with bone marrow metastasis. Materials and Methods This retrospective study comprised a record retrieval of the departmental archives for the past 6 years. A total of 331 patients with nonhematological malignancies were found, of whom 31.42% (104/331) showed bone marrow metastasis. An integrated clinical approach with bone marrow examination findings and immunohistochemistry whenever necessary was used to achieve a definitive diagnosis of bone marrow metastasis. Results Among the study population, 31.42% (104/331) of patients had nonhematological malignancies that metastasized to the bone marrow. Most of the patients with bone marrow metastasis had anemia, which was found in 77.88% (81/104) of the cases. Leukoerythroblastic reaction was noted in 31.73% (33/104) of the cases, and thrombocytopenia was found in 25% (26/104) of the cases. The most common malignancy with bone marrow metastasis in adults was prostatic adenocarcinoma (28.1%) (9/32) and in pediatric cases, neuroblastoma (53.9%) (52/98). Conclusions It is essential to diagnose nonhematological malignancies that have metastasized to the bone marrow since this necessitates tumor staging, therapy selection, and prognosis risk stratification. To conclude, not a single hematological parameter is predictive of bone marrow metastasis; however, unexplained anemia, a leukoerythroblastic blood picture, and thrombocytopenia in peripheral blood should raise suspicion for bone marrow metastasis in cases of nonhematological malignancies.
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Affiliation(s)
- Anurag Singh
- Department of Pathology, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Shalini Rawat
- Department of Pathology, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Rashmi Kushwaha
- Department of Pathology, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Mili Jain
- Department of Pathology, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Shailendra Prasad Verma
- Department of Clinical Hematology, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Nishant Verma
- Department of Pediatrics, King George’s Medical University, Lucknow, Uttar Pradesh, India
| | - Uma Shankar Singh
- Department of Pathology, King George’s Medical University, Lucknow, Uttar Pradesh, India
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Biswal D, Verma N, Jain S, Kabra SK, Lodha R, Mirdha BR. Intestinal Microsporidiosis from Duodenal Aspirate in a HIV-1 Positive Child with Polymicrobial Infections. Indian J Pediatr 2023; 90:1270. [PMID: 37498501 DOI: 10.1007/s12098-023-04769-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/06/2023] [Indexed: 07/28/2023]
Affiliation(s)
- Debasish Biswal
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Nishant Verma
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Saurav Jain
- Division of Pediatric Pulmonology and Intensive Care, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Sushil Kumar Kabra
- Division of Pediatric Pulmonology and Intensive Care, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Rakesh Lodha
- Division of Pediatric Pulmonology and Intensive Care, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Bijay Ranjan Mirdha
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.
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Nayak T, Peigh G, Chicos AB, Arora R, Kim S, Lin A, Verma N, Pfenniger A, Patil KD, Knight BP, Passman RS. Validation of the SCALE-CryoAF risk model to predict very late return of atrial fibrillation after cryoballoon ablation. J Interv Card Electrophysiol 2023; 66:1859-1865. [PMID: 36754907 PMCID: PMC9908502 DOI: 10.1007/s10840-023-01494-z] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 01/25/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND To date, few risk models have been validated to predict recurrent atrial fibrillation (AF) >1 year after ablation. The SCALE-CryoAF score was previously derived to predict very late return of AF (VLRAF) >1 year following cryoballoon ablation (CBA), with strong predictive ability. In this study, we aim to validate the SCALE-CryoAF score for VLRAF after CBA in a novel patient cohort. METHODS Retrospective analysis of a prospectively maintained single-center database was performed. Inclusion criteria were pulmonary vein isolation using CBA 2017-2020. Exclusion criteria included prior ablation, <1-year follow-up, lack of pre-CBA echocardiogram, additional ablation lesion sets, and documented AF recurrence 90-365 days post-CBA. The area under the curve (AUC) of SCALE-CryoAF was compared to the derivation value and other established risk models. RESULTS Among 469 CBA performed, 241 (61% male, 62.8 ±11.7 years old) cases were included in analysis. There were 37 (15.4%) patients who developed VLRAF. Patients with VLRAF had a higher SCALE-CryoAF score (VLRAF 5.4 ± 2.7; no VLRAF 3.1 ± 2.9; p<0.001). SCALE-CryoAF was linearly associated with VLRAF (y=14.35x-11.72, R2=0.99), and a score > 5 had a 32.7% risk of VLRAF. The SCALE-CryoAF risk model predicted VLRAF with an AUC of 0.74, which was similar to the derivation value (AUCderivation: 0.73) and statistically superior to MB-LATER, CHA2DS2-VASc, and CHADS2 scores. CONCLUSIONS The current analysis validates the ability of SCALE-CryoAF to predict VLRAF after CBA in a novel patient cohort. Patients with a high SCALE-CryoAF score should be monitored closely for recurrent AF >1 year following CBA.
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Affiliation(s)
- Tanvi Nayak
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Graham Peigh
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Alexandru B Chicos
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Rishi Arora
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Susan Kim
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Albert Lin
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Nishant Verma
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Anna Pfenniger
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Kaustubha D Patil
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Bradley P Knight
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Rod S Passman
- Division of Cardiology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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Verma N, Gupta P, Pandey AK, Awasthi S. Nasopharyngeal carriage of Streptococcus pneumoniae serotypes among sick and healthy children in northern India: A case-control study. Vaccine 2023; 41:6619-6624. [PMID: 37758571 PMCID: PMC10663590 DOI: 10.1016/j.vaccine.2023.09.029] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/29/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Streptococcus pneumoniae is leading bacterial cause of community acquired pneumonia and according to World Health Organization, responsible for 14 % death in children. There is effective vaccine available against Streptococcus pneumoniae. Hence the primary objective was to isolate Streptococcus pneumoniae from nasopharyngeal swabs in children aged 2-59 months with and without community acquired pneumonia and to assess their serotypes. METHODS This case-control study was conducted in tertiary teaching institutes in northern India. Hospitalized children, aged 2-59 months, with World Health Organization-defined community acquired pneumonia were included as cases. Age matched healthy controls were recruited from immunization clinic. All enrolments were done after written informed parental consent. Nasopharyngeal swabs were taken from both cases and controls, and were cultured on 5 % sheep blood agar with gentamycin plate for growth of Streptococcus pneumoniae and incubated in a jar at 370 for 18-24 hrs. Quellung reaction test was used for serotyping. RESULTS From March 2017 to December 2022, 2693 children (1910 cases and 783 controls), were recruited. The median age of cases was 7 months and controls 10 months. Almost all the cases had received antibiotics prior to hospitalization. Streptococcus pneumoniae positivity in nasopharyngeal swab was 8.1 % in cases, of which 56.8 % were vaccine serotypes and 23.6 % in controls, of which 37.8 % were vaccine serotypes. Adjusted odds ratio of isolating vaccine serotypes among cases as compared to controls was 1.77 (95 % CI, 1.09-2.88). CONCLUSION Streptococcus pneumoniae isolation from nasopharyngeal was found to be in lower proportion in cases as compared to control, though colonization with vaccine serotypes was higher in cases as compared to control. Therefore, pneumococcal vaccine coverage must be increased to prevent community acquired pneumonia.
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Affiliation(s)
- N Verma
- Department of Pediatrics, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - P Gupta
- Department of Microbiology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - A K Pandey
- Department of Pediatrics, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - S Awasthi
- Department of Pediatrics, King George's Medical University, Lucknow, Uttar Pradesh, India.
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Qayoom S, Shabbir N, Singhai A, Verma N, Rawat S. Primary Pure Intrarenal Yolk Sac Tumor in 1.5-Year-Old Boy-A Rare Case Report. Int J Surg Pathol 2023; 31:1381-1386. [PMID: 36710574 DOI: 10.1177/10668969221149131] [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] [Indexed: 01/31/2023]
Abstract
Germ cell tumors primarily arise in gonads and extragonadal germ cell tumors, an uncommon entity, originates usually along the midline. Here, we report the fifth example of intrarenal pure yolk sac tumor in a 1.5-year-old boy who presented with abdominal pain and underwent excision of the mass for suspected Wilms tumor. On histopathology and immunohistochemistry, a diagnosis of a yolk sac tumor was rendered. Postoperative serum alpha-fetoprotein levels were 21 000 ng/dl. The purpose of this report is to emphasize the importance of suspecting a germ cell tumor as one of the differential diagnoses of a suspected case of Wilms tumor and the significance of evaluating serum alpha-fetoprotein levels preoperatively.
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Affiliation(s)
- Sumaira Qayoom
- Department of Pathology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Nida Shabbir
- Department of Pathology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Atin Singhai
- Department of Pathology, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Nishant Verma
- Department of Paediatrics, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Shalini Rawat
- Department of Pathology, King George's Medical University, Lucknow, Uttar Pradesh, India
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Verma N, Ninia JG, Hayman TJ, Housri N, Peters GW, Knowlton CA, Campbell AM, Park HSM. Survival Outcomes for Oligometastatic vs. Polymetastatic Extensive-Stage Small Cell Lung Cancer Following Consolidative Thoracic Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e68-e69. [PMID: 37786002 DOI: 10.1016/j.ijrobp.2023.06.797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) For patients with limited metastatic burden, metastasis-directed radiotherapy has been shown to be associated with improved OS for certain types of cancer. However, these prior trials did not include patients with ES-SCLC. It is not yet clear if patients with oligometastatic ES-SCLC have improved outcomes over polymetastatic ES-SCLC after cTRT. MATERIALS/METHODS We identified patients treated with cTRT for ES-SCLC in 2013-2020 at a single institution. Oligometastatic disease was defined at the time of diagnosis as three or fewer organs with distant disease, and with each organ having three or fewer metastatic lesions. All other patients were considered polymetastatic. The Kaplan-Meier estimator, log-rank test, and multivariable Cox proportional hazards regression were used to compare OS, progression-free survival (PFS), local recurrence-free survival (LRFS), and new metastasis-free survival (NMFS) between oligometastatic and polymetastatic ES-SCLC patients undergoing cTRT. RESULTS Among 70 included patients, 36 were defined as oligometastatic. All patients received platinum-doublet chemotherapy and cT. Immunotherapy was given in 7 (19.4%) oligometastatic patients and 5 (14.7%) polymetastatic patients (p = 0.56). Median follow-up time was 38.2 months. Multivariable Cox regression analysis showed that oligometastatic disease (vs. polymetastatic disease) at diagnosis was associated with improved OS (hazard ratio [HR] 0.44, 95% CI 0.25-0.78, p = 0.005, 1-year OS 86.1% vs. 46.9%, 2-year OS 47.1% vs. 15.1%). PFS, LRFS, and NMFS were not significantly different between the cohorts. Among oligometastatic patients, pleural involvement (HR 2.44, 95% CI 1.02-5.83, p = 0.046) and lung involvement (HR 4.93, 95% CI 1.02-23.9, p = 0.047) were associated with inferior OS. Among the 26 of 36 (72.2%) oligometastatic patients with neither pleural nor bilateral lung involvement, 1-year OS was 88.5% and 2-year OS was 58.3%. CONCLUSION We observed that oligometastatic ES-SCLC patients treated with cTRT (especially those without pleural or bilateral lung involvement) have superior OS than those with polymetastatic disease. We encourage enrollment on the NRG LU007/RAPTOR randomized trial to determine the impact of complete or incomplete consolidative RT to up to 5 sites in ES-SCLC, especially in those with oligometastatic disease.
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Affiliation(s)
- N Verma
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
| | - J G Ninia
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
| | - T J Hayman
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
| | - N Housri
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
| | - G W Peters
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
| | - C A Knowlton
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
| | - A M Campbell
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
| | - H S M Park
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT
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Sethi P, Ghosh T, Chowdhury S, Bir R, Verma N, Pandey S, Subramanian A, Meena V, Nischal N, Bhattacharjee S, Aravindan A, Anand RK, Goswami D, Aggarwal R, Wig N. Malarial Antibodies and Endemicity: Does It Affect SARS-CoV-2 Severity and Outcomes? Cureus 2023; 15:e46871. [PMID: 37954722 PMCID: PMC10638102 DOI: 10.7759/cureus.46871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2023] [Indexed: 11/14/2023] Open
Abstract
Background India has a disproportionately lower rate of coronavirus disease 2019 (COVID-19) severe disease and lower death rates with respect to other parts of the world. It has been proposed that malaria-endemic countries such as India are relatively protected against severe COVID-19 disease and deaths. Methods This was a cross-sectional, analytical, observational study conducted from August 2020 to July 2021 at a tertiary care COVID-19-designated center in New Delhi, India. It aimed to study the association between antimalarial antibody levels and COVID-19 disease severity and outcomes. Results One hundred forty-six patients were included in the final analysis. The mean (standard deviation {SD}) age of the study population was 44.6 (17.2) years, and there were 85 (58.2%) males. Sixty-five patients had mild disease, 14 patients had moderate disease, and 67 patients had severe disease at the time of enrolment in the study. Forty-six patients expired during the hospital stay. For the antimalarial antibody, there was a statistically significant difference between mild and moderate (p=0.018), mild and severe (p=0.016), and mild and combined moderate and severe diseases (p=0.013). However, there was no difference between the patients who survived and those who did not. Conclusion Antimalarial antibody levels may not be associated with the outcomes of COVID-19 during hospital stay. However, this study has provided some insights into the relationship between the severity and outcomes of COVID-19 and the levels of antimalarial antibodies.
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Affiliation(s)
- Prayas Sethi
- Medicine, All India Institute of Medical Sciences, New Delhi, IND
| | - Tamoghna Ghosh
- Medicine, All India Institute of Medical Sciences, New Delhi, IND
| | - Souradeep Chowdhury
- Infectious Diseases, All India Institute of Medical Sciences, New Delhi, IND
| | - Raunak Bir
- Microbiology, Employees' State Insurance Corporation (ESIC) Medical College and Hospital, Faridabad, IND
| | - Nishant Verma
- Microbiology, All India Institute of Medical Sciences, New Delhi, IND
| | - Shivam Pandey
- Biostatistics, All India Institute of Medical Sciences, New Delhi, IND
| | | | - Ved Meena
- Medicine, All India Institute of Medical Sciences, New Delhi, IND
| | - Neeraj Nischal
- Medicine, All India Institute of Medical Sciences, New Delhi, IND
| | - Sulagna Bhattacharjee
- Anesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Ajisha Aravindan
- Anesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Rahul K Anand
- Anesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Devalina Goswami
- Anesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Richa Aggarwal
- Anesthesiology, Pain Medicine, and Critical Care, All India Institute of Medical Sciences, New Delhi, IND
| | - Naveet Wig
- Medicine, All India Institute of Medical Sciences, New Delhi, IND
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Bhowmick S, Graham RD, Verma N, Trevathan JK, Franke M, Nieuwoudt S, Fisher LE, Shoffstall AJ, Weber DJ, Ludwig KA, Lempka SF. Computational modeling of dorsal root ganglion stimulation using an Injectrode. bioRxiv 2023:2023.09.20.558675. [PMID: 37790562 PMCID: PMC10542492 DOI: 10.1101/2023.09.20.558675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Objective Minimally invasive neuromodulation therapies like the Injectrode, which is composed of a tightly wound polymer-coated platinum/iridium microcoil, offer a low-risk approach for administering electrical stimulation to the dorsal root ganglion (DRG). This flexible electrode is aimed to conform to the DRG. The stimulation occurs through a transcutaneous electrical stimulation (TES) patch, which subsequently transmits the stimulation to the Injectrode via a subcutaneous metal collector. However, effectiveness of stimulation relies on the specific geometrical configurations of the Injectrode-collector-patch system. Hence, there is a need to investigate which design parameters influence the activation of targeted neural structures. Approach We employed a hybrid computational modeling approach to analyze the impact of the Injectrode system design parameters on charge delivery and the neural response to stimulation. We constructed multiple finite element method models of DRG stimulation and multi-compartment models of DRG neurons. We simulated the neural responses using parameters based on prior acute preclinical experiments. Additionally, we developed multiple human-scale computational models of DRG stimulation to investigate how design parameters like Injectrode size and orientation influenced neural activation thresholds. Main results Our findings were in accordance with acute experimental measurements and indicated that the Injectrode system predominantly engages large-diameter afferents (Aβ-fibers). These activation thresholds were contingent upon the surface area of the Injectrode. As the charge density decreased due to increasing surface area, there was a corresponding expansion in the stimulation amplitude range before triggering any pain-related mechanoreceptor (Aδ-fibers) activity. Significance The Injectrode demonstrates potential as a viable technology for minimally invasive stimulation of the DRG. Our findings indicate that utilizing a larger surface area Injectrode enhances the therapeutic margin, effectively distinguishing the desired Aβ activation from the undesired Aδ-fiber activation.
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Mahajan A, Bakhshi S, Singh M, Seth R, Verma N, Jain S, Radhakrishnan V, Mandal P, Arora RS, Dinand V, Kalra M, Kapoor G, Sajid M, Kumar R, Mallick S, Taluja A, Chandra J. Empirical Antitubercular Treatment for Lymphadenopathy: Are We Missing Lymphoma? Indian J Pediatr 2023; 90:761-765. [PMID: 35737182 DOI: 10.1007/s12098-022-04180-6] [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] [Received: 08/28/2021] [Accepted: 01/27/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the proportion of patients who received empirical treatment with antitubercular therapy (ATT) prior to the diagnosis of Hodgkin lymphoma (HL) in the first multicentric, prospective study on HL from India, and to assess its impact on extent of disease at diagnosis and outcomes. METHODS Children < 18 y with biopsy proven HL were enrolled in InPOG-HL-15-01. Along with other clinical and epidemiological data, history of prior treatment with ATT was documented. All patients received treatment as per a risk-stratified, response-adapted strategy. RESULTS Out of 396, 115 (29%) children had received ATT prior to establishing a definitive diagnosis of HL. This cohort presented with advanced-stage disease (p = 0.001) and B symptoms (p = 0.001) in a higher proportion of cases. Consequently, those children were more likely to receive 6 rather than 4 cycles of chemotherapy (p = 0.001). They were more likely to have infradiaphragmatic involvement (p = 0.001). Overall survival and event-free survival were not different. CONCLUSION Empirical treatment with ATT in children presenting with lymphadenopathy continues to be practiced widely in India. The delay in diagnosis may contribute to children presenting with advanced-stage disease warranting more intensive treatment for successful outcomes.
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Affiliation(s)
- Amita Mahajan
- Department of Pediatric Oncology, Indraprastha Apollo Hospital, New Delhi, 110076, India.
| | - Sameer Bakhshi
- Department of Pediatric Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - Manisha Singh
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, Bihar, India
| | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Nishant Verma
- Department of Pediatrics, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Sandeep Jain
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | | | - Piali Mandal
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
| | | | - Veronique Dinand
- Palliative and Supportive Unit, BJ Wadia Hospital, Mumbai, Maharashtra, India
| | - Manas Kalra
- Department of Pediatric Oncology, Sir Ganga Ram Hospital, New Delhi, India
| | - Gauri Kapoor
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | - Mohammad Sajid
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, Bihar, India
| | - Rakesh Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Saumyaranjan Mallick
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | | | - Jagdish Chandra
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
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Yadav G, Singh A, Kushwaha R, Verma N, Srivastava RM, Singh US. Utility of bone marrow examination in retinoblastoma and their correlation with hematological features. J Med Life 2023; 16:1245-1250. [PMID: 38024824 PMCID: PMC10652682 DOI: 10.25122/jml-2023-0156] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/24/2023] [Indexed: 12/01/2023] Open
Abstract
Retinoblastoma makes up about 3% of all childhood malignancies. The frequency of metastatic retinoblastoma ranges from 4.8 to 11%. Assessing the bone marrow status of newly diagnosed patients is crucial because of the advantages of autologous bone marrow transplants for high-risk patients. This study aimed to determine the utility of bone marrow examination in cases of retinoblastoma and its correlation with hematological findings. This retrospective study was conducted at the Department of Pathology, King George's Medical University, Lucknow, India. A total of 34 cases of retinoblastoma with bone marrow examination were included in the study. Bone marrow infiltration was present in 17.65% (6/34) cases of retinoblastoma. Bone marrow aspirate myelogram showed that marrow metastasis in retinoblastoma was significantly linked with a reduced percentage of total myeloid cells (p=0.001) and segmented cells (p=0.006). The present study demonstrated that 15% (3/20) of retinoblastoma patients previously classified as nonmetastatic before bone marrow examination (stages I to III based on histology, imaging, and bone scan) had bone marrow metastases following bone marrow examination and were upgraded to stage IV. To conclude, a diligent and exhaustive search for metastatic cells in bone marrow is advised if the myelogram shows a reduced percentage of total myeloid and segmented cells. All stage II and stage III cases of retinoblastoma must undergo bone marrow examination for early metastasis detection, as it may result in an upgrade to stage IV disease, impacting the prognosis and necessitating distinct treatment modalities.
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Affiliation(s)
- Geeta Yadav
- Department of Pathology, King George’s Medical University Lucknow, India
| | - Anurag Singh
- Department of Pathology, King George’s Medical University Lucknow, India
| | - Rashmi Kushwaha
- Department of Pathology, King George’s Medical University Lucknow, India
| | - Nishant Verma
- Department of Pediatrics, King George’s Medical University, Lucknow, India
| | | | - Uma Shankar Singh
- Department of Pathology, King George’s Medical University Lucknow, India
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Verma N, Knudsen B, Gholston A, Skubal A, Blanz S, Settell M, Frank J, Trevathan J, Ludwig K. Microneurography as a minimally invasive method to assess target engagement during neuromodulation. J Neural Eng 2023; 20:10.1088/1741-2552/acc35c. [PMID: 36898148 PMCID: PMC10587909 DOI: 10.1088/1741-2552/acc35c] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 03/10/2023] [Indexed: 03/12/2023]
Abstract
Objective.Peripheral neural signals recorded during neuromodulation therapies provide insights into local neural target engagement and serve as a sensitive biomarker of physiological effect. Although these applications make peripheral recordings important for furthering neuromodulation therapies, the invasive nature of conventional nerve cuffs and longitudinal intrafascicular electrodes (LIFEs) limit their clinical utility. Furthermore, cuff electrodes typically record clear asynchronous neural activity in small animal models but not in large animal models. Microneurography, a minimally invasive technique, is already used routinely in humans to record asynchronous neural activity in the periphery. However, the relative performance of microneurography microelectrodes compared to cuff and LIFE electrodes in measuring neural signals relevant to neuromodulation therapies is not well understood.Approach.To address this gap, we recorded cervical vagus nerve electrically evoked compound action potentials (ECAPs) and spontaneous activity in a human-scaled large animal model-the pig. Additionally, we recorded sensory evoked activity and both invasively and non-invasively evoked CAPs from the great auricular nerve. In aggregate, this study assesses the potential of microneurography electrodes to measure neural activity during neuromodulation therapies with statistically powered and pre-registered outcomes (https://osf.io/y9k6j).Main results.The cuff recorded the largest ECAP signal (p< 0.01) and had the lowest noise floor amongst the evaluated electrodes. Despite the lower signal to noise ratio, microneurography electrodes were able to detect the threshold for neural activation with similar sensitivity to cuff and LIFE electrodes once a dose-response curve was constructed. Furthermore, the microneurography electrodes recorded distinct sensory evoked neural activity.Significance.The results show that microneurography electrodes can measure neural signals relevant to neuromodulation therapies. Microneurography could further neuromodulation therapies by providing a real-time biomarker to guide electrode placement and stimulation parameter selection to optimize local neural fiber engagement and study mechanisms of action.
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Affiliation(s)
- Nishant Verma
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
| | - Bruce Knudsen
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
| | - Aaron Gholston
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
| | - Aaron Skubal
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
| | - Stephan Blanz
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
| | - Megan Settell
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
| | - Jennifer Frank
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
| | - James Trevathan
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
| | - Kip Ludwig
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, United States of America
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States of America
- Department of Neurosurgery, University of Wisconsin-Madison, Madison, WI, United States of America
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Kumar L, Verma N, Tomar R, Sehrawat H, Kumar R, Chandra R. Development of bioactive 2-substituted benzimidazole derivatives using an MnO x/HT nanocomposite catalyst. Dalton Trans 2023; 52:3006-3015. [PMID: 36779313 DOI: 10.1039/d2dt02923e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Benzimidazole is a vital moiety found in a wide range of naturally and pharmacologically active molecules. We prepared a proficient and facile manganese oxide-supported magnesium and aluminium-based nanocomposite catalytic framework using the deposition-precipitation method and characterised it with XRD, XPS, SEM, TEM, and TGA techniques. Following that, the catalyst was used in the green synthesis of highly functional 2-substituted benzimidazole derivatives in an ethanol-water solvent system at room temperature using various assorted benzaldehydes and o-phenylenediamine as substituents. The synthesised catalyst operates efficiently and is applicable to a wide range of electron-withdrawing and electron-donating substrates, resulting in good to excellent yields. The advantages of this process include the use of a greener solvent, high yield, high conversions, no use of additives or bases, a good TOF, and a shorter reaction time.
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Affiliation(s)
- Loveneesh Kumar
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Nishant Verma
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Ravi Tomar
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India. .,Department of Chemistry, Faculty of Science, SGT University, Gurugram, Haryana-122505, India
| | - Hitesh Sehrawat
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Rupesh Kumar
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India. .,Department of Chemistry, Kirori Mal College, University of Delhi, Delhi 110007, India.
| | - Ramesh Chandra
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India. .,Dr B. R. Ambedkar Centre for Biomedical Research (ACBR), University of Delhi, Delhi 110007, India.,Institute of Nanomedical Sciences (INMS), University of Delhi, Delhi 110007, India
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Liu AY, Charron J, Fugaro D, Spoolstra S, Kaplan R, Lohrmann G, Gao X, Gay H, Passman R, Kim S, Lin AC, Chicos A, Arora R, Patil K, Pfenniger A, Knight BP, Verma N. Implementation of an intravenous sotalol initiation protocol: Implications for feasibility, safety, and length of stay. J Cardiovasc Electrophysiol 2023; 34:502-506. [PMID: 36640424 PMCID: PMC10699543 DOI: 10.1111/jce.15819] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/02/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Oral sotalol initiation requires a multiple-day, inpatient admission to monitor for QT prolongation during loading. A 1-day intravenous (IV) sotalol loading protocol was approved by the United States Food and Drug Administration in March 2020, but limited data on clinical use and administration currently exists. This study describes implementation of an IV sotalol protocol within an integrated health system, provides initial efficacy and safety outcomes, and examines length of stay (LOS) compared with oral sotalol initiation. METHODS IV sotalol was administered according to a prespecified initiation protocol to adult patients with refractory atrial or ventricular arrhythmias. Baseline characteristics, safety and feasibility outcomes, and LOS were compared with patients receiving oral sotalol over a similar time period. RESULTS From January 2021 to June 2022, a total of 29 patients (average age 66.0 ± 8.6 years, 27.6% women) underwent IV sotalol load and 20 patients (average age 60.4 ± 13.9 years, 65.0% women) underwent oral sotalol load. The load was successfully completed in 22/29 (75.9%) patients receiving IV sotalol and 20/20 (100%) of patients receiving oral sotalol, although 7/20 of the oral sotalol patients (35.0%) required dose reduction. Adverse events interrupting IV sotalol infusion included bradycardia (seven patients, 24.1%) and QT prolongation (three patients, 10.3%). No patients receiving IV or oral sotalol developed sustained ventricular arrhythmias before discharge. LOS for patients completing IV load was 2.6 days shorter (mean 1.0 vs. 3.6, p < .001) compared with LOS with oral load. CONCLUSION IV sotalol loading has a safety profile that is similar to oral sotalol. It significantly shortens hospital LOS, potentially leading to large cost savings.
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Affiliation(s)
- Albert Y. Liu
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Jessica Charron
- Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern Memorial Hospital, Chicago, Illinois, USA
| | - Dana Fugaro
- Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern Memorial Hospital, Chicago, Illinois, USA
| | - Scott Spoolstra
- Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern Memorial Hospital, Chicago, Illinois, USA
| | - Rachel Kaplan
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Graham Lohrmann
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Xu Gao
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Hawkins Gay
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Rod Passman
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Susan Kim
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Albert C. Lin
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Alexandru Chicos
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Rishi Arora
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Kaustubha Patil
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Anna Pfenniger
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Bradley P. Knight
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
| | - Nishant Verma
- Division of Cardiology, Northwestern University, Chicago, Illinois, USA
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Nigam N, Sinha S, Verma N, Gupta H, Fatima G, Gupta S, Kumar P. To Study the β-Globin Haplotype Pattern of Descent of a Set of Linked Alleles Occurring on the Same Chromosome in the Northern Province of India. Cureus 2023; 15:e36569. [PMID: 37095793 PMCID: PMC10122190 DOI: 10.7759/cureus.36569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2023] [Indexed: 04/26/2023] Open
Abstract
OBJECTIVE To study the five mutations commonly prevalent in North India, i.e., IVS-I-5 (G→C), 619 bp deletion, IVS-I-1 (G→T), codon 41/42 (-TTCT), and codon 8/9 (+G), in the beta thalassemia (β-thalassemia) major children. The specific β-thalassemia mutations of different haplotype patterns of the β-globin gene cluster will also be determined. METHODS A total of 125 children diagnosed with β-thalassemia major visiting the Department of Pediatrics of King George's Medical University were involved in the study. As per the QIAamp (Qiagen, Hilden, Germany) manufacturer guidelines, genomic DNA was isolated from whole blood. To identify the haplotype pattern within the β-globin gene cluster, the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis was used. The respective restriction endonucleases used were Hind III/GƔ, Hinc II/Ψß, Hinf I/ß, Ava II/ß, and BamHI for the haplotype analysis in the β-globin pattern of descent of a set of linked alleles occurring on the same chromosome. RESULTS Among the five common mutations, 73 patients had IVS-I-5 (G→C), 28 patients had 619 bp deletion, 17 patients had IVS-I-1 (G→T), five patients had Cd 41/42 (-TTCT), and two patients had Cd 8/9 (+G) mutations. Fifteen haplotypes (haplotypes 1-15) were identified in 125 β-thalassemia major children. Among the five haplotypes observed in the IVS-I-5 (G→C) mutation, the H1 haplotype was most predominant with a frequency of 27.2%, followed by the H2, H4, H3, and H10 haplotypes in the given population. In 619 bp deletion, IVS-I-1 (G→T), codon 41/42, and codon 8/9, haplotype H9, H12, H11, and H5 were seen, respectively. CONCLUSION β-thalassemia was found to be the most common in the northern province of Uttar Pradesh. The linkage of β-globin gene haplotypes with β-thalassemia mutations was explored in the northern province of Uttar Pradesh. The population of different natives is being mixed up due to migration and industrialization. These were some reasons for the occurrence of haplotypic heterogeneity. This haplotype heterogeneity was correlated with the origin of these mutations found to be unlike the origin of common ones from different provinces.
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Affiliation(s)
- Nitu Nigam
- Center for Advance Research, Cytogenetics Lab, King George's Medical University, Lucknow, IND
| | - Swasti Sinha
- Hematology and Oncology/Clinical Hematology, King George's Medical University, Lucknow, IND
| | - Nishant Verma
- Pediatrics, King George's Medical University, Lucknow, IND
| | - Harish Gupta
- Medicine, King George's Medical University, Lucknow, IND
| | - Ghizal Fatima
- Public Health, Era's Lucknow Medical College and Hospital, Lucknow, IND
| | - Surbhi Gupta
- Cytogenetics Lab, King George's Medical University, Lucknow, IND
| | - Praveen Kumar
- Cytogenetics Lab, King George's Medical University, Lucknow, IND
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Verma N, Romanauski B, Lam D, Lujan L, Blanz S, Ludwig K, Lempka S, Shoffstall A, Knudson B, Nishiyama Y, Hao J, Park HJ, Ross E, Lavrov I, Zhang M. Characterization and applications of evoked responses during epidural electrical stimulation. Bioelectron Med 2023; 9:5. [PMID: 36855060 PMCID: PMC9976490 DOI: 10.1186/s42234-023-00106-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/08/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Epidural electrical stimulation (EES) of the spinal cord has been FDA approved and used therapeutically for decades. However, there is still not a clear understanding of the local neural substrates and consequently the mechanism of action responsible for the therapeutic effects. METHOD Epidural spinal recordings (ESR) are collected from the electrodes placed in the epidural space. ESR contains multi-modality signal components such as the evoked neural response (due to tonic or BurstDR™ waveforms), evoked muscle response, stimulation artifact, and cardiac response. The tonic stimulation evoked compound action potential (ECAP) is one of the components in ESR and has been proposed recently to measure the accumulative local potentials from large populations of neuronal fibers during EES. RESULT Here, we first review and investigate the referencing strategies, as they apply to ECAP component in ESR in the domestic swine animal model. We then examine how ECAP component can be used to sense lead migration, an adverse outcome following lead placement that can reduce therapeutic efficacy. Lastly, we show and isolate concurrent activation of local back and leg muscles during EES, demonstrating that the ESR obtained from the recording contacts contain both ECAP and EMG components. CONCLUSION These findings may further guide the implementation of recording and reference contacts in an implantable EES system and provide preliminary evidence for the utility of ECAP component in ESR to detect lead migration. We expect these results to facilitate future development of EES methodology and implementation of use of different components in ESR to improve EES therapy.
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Affiliation(s)
- Nishant Verma
- Abbott Neuromodulation, 6901 Preston Rd, Plano, TX, 75024, USA
- Department of Biomedical Engineering, University of Wisconsin Madison, Madison, USA
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, USA
| | - Ben Romanauski
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Danny Lam
- Abbott Neuromodulation, 6901 Preston Rd, Plano, TX, 75024, USA
| | - Luis Lujan
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Stephan Blanz
- Department of Biomedical Engineering, University of Wisconsin Madison, Madison, USA
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Kip Ludwig
- Department of Biomedical Engineering, University of Wisconsin Madison, Madison, USA
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, USA
- Department of Neurosurgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Scott Lempka
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- APT Center, Louis Stokes Cleveland VA Medical Center, OH, Cleveland, USA
- Department of Biomedical Engineering, Department of Anesthesiology, Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA
| | - Andrew Shoffstall
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- APT Center, Louis Stokes Cleveland VA Medical Center, OH, Cleveland, USA
| | - Bruce Knudson
- Department of Biomedical Engineering, University of Wisconsin Madison, Madison, USA
- Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, USA
| | - Yuichiro Nishiyama
- Department of Neurology, Department of Physiology and Biomedical Engineering, Mayo Clinic, 500 First Street SW, Rochester, MN, 55905, USA
| | - Jian Hao
- Department of Neurology, Department of Physiology and Biomedical Engineering, Mayo Clinic, 500 First Street SW, Rochester, MN, 55905, USA
| | - Hyun-Joo Park
- Abbott Neuromodulation, 6901 Preston Rd, Plano, TX, 75024, USA
| | - Erika Ross
- Abbott Neuromodulation, 6901 Preston Rd, Plano, TX, 75024, USA
| | - Igor Lavrov
- Department of Neurology, Department of Physiology and Biomedical Engineering, Mayo Clinic, 500 First Street SW, Rochester, MN, 55905, USA.
| | - Mingming Zhang
- Abbott Neuromodulation, 6901 Preston Rd, Plano, TX, 75024, USA.
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21
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Kalra M, Bakhshi S, Singh M, Seth R, Verma N, Jain S, Radhakrishnan V, Mandal P, Mahajan A, Arora RS, Dinand V, Kapoor G, Sajid M, Kumar R, Taluja A, Mallick S, Chandra J. Response assessment by positron emission tomography-computed tomography as compared with contrast-enhanced computed tomography in childhood Hodgkin lymphoma can reduce the need for radiotherapy in low- and middle-income countries. Pediatr Blood Cancer 2023; 70:e30091. [PMID: 36411263 DOI: 10.1002/pbc.30091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/21/2022] [Accepted: 10/19/2022] [Indexed: 11/23/2022]
Abstract
INTRODUCTION The InPOG-HL-15-01, a multicentric prospective study, used a risk-stratified and response-based approach with doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD) backbone to treat children and adolescents with newly diagnosed Hodgkin lymphoma (HL) and reduce the use of radiation therapy (RT). Children/adolescents with bulky disease or inadequate response at early response assessment (ERA) after two cycles of chemotherapy were assigned to receive RT. For ERA, positron emission tomography computed tomography (PET-CT) was recommended but not mandatory in view of limited access. This study aimed to compare the impact of using contrast-enhanced computed tomography (CECT) and PET-CT on treatment decisions and outcomes. METHODOLOGY 396 patients were enrolled and 382 had an ERA at the assigned time point. Satisfactory response was defined as Deauville score 3 or less for patients undergoing PET-CT and complete response (CR)/very good partial response (VGPR) for patients undergoing CECT. Outcomes of interest incorporate 5 year event-free survival (EFS), EFS including abandonment (EFSa), and overall survival (OS). RESULTS At ERA, satisfactory response was documented in 277 out of 382 (72.5%) participants and this was significantly higher in PET-CT (151 out of 186, 81.2%) as compared with CECT-based assessments (126 out of 196, 64.3%) respectively (p value < .001). Amongst the 203 patients with nonbulky disease (wherein the indication for RT was entirely dependent on ERA), 96 out of 114 (84.2%) and 61 out of 89 (68.5%) patients achieved a satisfactory response according to the PET-CT and CECT (p value = .008) respectively and hence a lesser proportion of patients in the PET-CT arm received RT. Despite a lower usage of RT the 5 year OS of both groups, ERA based on CECT (91.8%) versus PET-CT (94.1%) was comparable (p value = .391) and so was the 5 year EFS (86.7 vs. 85.5%, p value = .724). CONCLUSION Use of PET-CT as the modality for ERA is more likely to indicate a satisfactory response as compared with CECT and thereby decreases the need for RT in response-based treatment algorithm for HL-afflicted children. The reduction in the application of RT did not impact the overall outcome and plausibly would lower the risk of delayed toxic effects.
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Affiliation(s)
- Manas Kalra
- Department of Pediatric Hematology Oncology BMT, Sir Ganga Ram Hospital, New Delhi, India
| | - Sameer Bakhshi
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - M Singh
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, India
| | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Nishant Verma
- Department of Pediatrics, King George's Medical University, Lucknow, India
| | - Sandeep Jain
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | - V Radhakrishnan
- Department of Pediatric Oncology, Cancer Institute, Adyar, Chennai, India
| | - Piali Mandal
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
| | - Amita Mahajan
- Department of Pediatric Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Ramandeep S Arora
- Department of Pediatric Oncology, Max Super Specialty Hospital, New Delhi, India
| | - Veronique Dinand
- Department of Palliative and Supportive Unit, BJ Wadia Hospital, Mumbai, India
| | - Gauri Kapoor
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | - M Sajid
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, India
| | - Rakesh Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - A Taluja
- Cankids Kidscan, New Delhi, India
| | - Saumyaranjan Mallick
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Jagdish Chandra
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
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22
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Hoster C, Rahman A, Goyal A, Peigh G, Trohman R, Knight BP, Huang H, Krishnan K, Larsen T, Mazur A, Sharma P, Engelstein E, Verma N, Wasserlauf J. Subcutaneous implantable cardioverter-defibrillator implantation position predicts successful defibrillation in obese and non-obese patients. J Interv Card Electrophysiol 2023:10.1007/s10840-022-01462-z. [PMID: 36596954 DOI: 10.1007/s10840-022-01462-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/19/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Subcutaneous implantable cardioverter-defibrillators (S-ICD) are an alternative to transvenous ICDs for patients without a need for cardiac pacing. Obese patients have been proposed to be at higher risk for conversion failure with S-ICDs due to subcutaneous fat underneath the device. Optimal device positioning may promote equivalent outcomes between obese and non-obese patients by minimizing the effects of excess adipose tissue. METHODS A retrospective analysis of patients undergoing defibrillation testing at the time of S-ICD implantation was performed. The primary endpoint was the rate of successful conversion of ventricular fibrillation (VF) at the time of implant. The secondary endpoint was shock impedance. RESULTS A total of 184 patients were included in the study. The rate of successful conversion of VF was 90.3% for obese patients (n = 72) and 96.4% for non-obese patients (n = 112) (p = 0.086). Compared to non-obese patients, obese patients had a higher mean PRAETORIAN score (78.5 ± 58.1 vs. 48.8 ± 35.5, p < 0.001) and higher measured mean impedance (82.0 ohms ± 26.5 vs. 69.8 ohms ± 19.3, p < 0.001). Patients with a PRAETORIAN score < 90 all had successful defibrillation testing regardless of BMI. CONCLUSIONS In this study, a PRAETORIAN score < 90 was associated with a 100% success rate of defibrillation testing following S-ICD implantation regardless of patient body mass index (BMI). Thus, the impact of obesity on impedance and the risk of failed shocks may be minimized with close attention to implantation technique to achieve a low PRAETORIAN score.
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Affiliation(s)
- Clay Hoster
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA.
| | - Annas Rahman
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
| | - Ansh Goyal
- Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Graham Peigh
- Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Richard Trohman
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
| | - Bradley P Knight
- Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Henry Huang
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
| | | | - Timothy Larsen
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
| | - Alexander Mazur
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
| | - Parikshit Sharma
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
| | - Erica Engelstein
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
| | - Nishant Verma
- Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Jeremiah Wasserlauf
- Division of Cardiology, Rush University Medical Center, 1717 W Congress Parkway, 345 Kellogg, Chicago, IL, 60612, USA
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Gupta P, Awasthi S, Gupta U, Verma N, Rastogi T, Pandey AK, Naziat H, Rahman H, Islam M, Saha S. Nasopharyngeal Carriage of Streptococcus pneumoniae Serotypes Among Healthy Children in Northern India. Curr Microbiol 2022; 80:41. [PMID: 36534266 PMCID: PMC9763132 DOI: 10.1007/s00284-022-03114-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 11/07/2022] [Indexed: 12/23/2022]
Abstract
Streptococcus pneumoniae (SP) infections cause morbidity and mortality among children worldwide. Hence India introduced 13-valent pneumococcal conjugate vaccine (PCV-13) in 2017 in a phased manner. The primary objective of this study was to assess the proportion of healthy children having nasopharyngeal colonization (NP) with SP. Secondary objective was to determine prevalent serotype of SP among the PCV13 vaccinated and non-vaccinated children. This cross-sectional study was conducted in 4 hospitals of Lucknow District, Northern India. Three hundred healthy children (2-59 months) were recruited between July and August 2019 from vaccination-clinics of hospitals. NP specimen was cultured using 5% sheep blood agar plate containing gentamicin. Pneumococcal isolates were identified by optochin sensitivity and bile-solubility tests. Serotyping was done using Quellung Method. Of the 300 healthy children, 56.7% (170/300) were males and 59.3% (181/300) had received at least one dose of PCV13 vaccine. The NP carriage rate of SP among healthy children was 37.7% (113/300). Vaccine serotypes were found in 33.3% (22/66) in PCV vaccinated children and 48.9% (23/47) in non-vaccinated children (p 0.09). Common vaccine serotypes that isolated were: 18C, 19A, 19F, 23F, 3, 4, 6A, 6B, 9 V. Thus more than one-third of healthy children had NP colonization with SP. Adjusting for age, there was a trend for significant reduction in vaccine serotypes in the NP with one doses versus two or more doses (ptrend = 0.04).
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Affiliation(s)
- P Gupta
- Department of Microbiology, King George's Medical University, Uttar Pradesh, Lucknow, India
| | - S Awasthi
- Department of Paediatrics, King George's Medical University, Uttar Pradesh, Lucknow, India.
| | - U Gupta
- Department of Microbiology, King George's Medical University, Uttar Pradesh, Lucknow, India
| | - N Verma
- Department of Paediatrics, King George's Medical University, Uttar Pradesh, Lucknow, India
| | - T Rastogi
- Department of Paediatrics, King George's Medical University, Uttar Pradesh, Lucknow, India
| | - A K Pandey
- Department of Paediatrics, King George's Medical University, Uttar Pradesh, Lucknow, India
| | - H Naziat
- Department of Microbiology, Bangladesh Shishu Hospital & Institute, Dhaka, Bangladesh
- Child Health Research Foundation, Dhaka, Bangladesh
| | - H Rahman
- Child Health Research Foundation, Dhaka, Bangladesh
| | - M Islam
- Child Health Research Foundation, Dhaka, Bangladesh
| | - S Saha
- Department of Microbiology, Bangladesh Shishu Hospital & Institute, Dhaka, Bangladesh
- Child Health Research Foundation, Dhaka, Bangladesh
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24
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Verma N, Le T, Mudge J, Nicksic PJ, Xistris L, Kasole M, Shoffstall AJ, Poore SO, Ludwig KA, Dingle AM. Efficacy of bone stimulators in large-animal models and humans may be limited by weak electric fields reaching fracture. Sci Rep 2022; 12:21798. [PMID: 36526728 PMCID: PMC9758190 DOI: 10.1038/s41598-022-26215-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Noninvasive electronic bone growth stimulators (EBGSs) have been in clinical use for decades. However, systematic reviews show inconsistent and limited clinical efficacy. Further, noninvasive EBGS studies in small animals, where the stimulation electrode is closer to the fracture site, have shown promising efficacy, which has not translated to large animals or humans. We propose that this is due to the weaker electric fields reaching the fracture site when scaling from small animals to large animals and humans. To address this gap, we measured the electric field strength reaching the bone during noninvasive EBGS therapy in human and sheep cadaver legs and in finite element method (FEM) models of human and sheep legs. During application of 1100 V/m with an external EBGS, only 21 V/m reached the fracture site in humans. Substantially weaker electric fields reached the fracture site during the later stages of healing and at increased bone depths. To augment the electric field strength reaching the fracture site during noninvasive EBGS therapy, we introduced the Injectrode, an injectable electrode that spans the distance between the bone and subcutaneous tissue. Our study lays the groundwork to improve the efficacy of noninvasive EBGSs by increasing the electric field strength reaching the fracture site.
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Affiliation(s)
- Nishant Verma
- grid.14003.360000 0001 2167 3675Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Wisconsin Institute for Translational Neuroengineering (WITNe), University of Wisconsin-Madison, Madison, WI USA
| | - Todd Le
- grid.14003.360000 0001 2167 3675Division of Plastic Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI USA
| | - Jonah Mudge
- grid.14003.360000 0001 2167 3675Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Wisconsin Institute for Translational Neuroengineering (WITNe), University of Wisconsin-Madison, Madison, WI USA
| | - Peter J. Nicksic
- grid.14003.360000 0001 2167 3675Division of Plastic Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI USA
| | - Lillian Xistris
- grid.14003.360000 0001 2167 3675Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Wisconsin Institute for Translational Neuroengineering (WITNe), University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Division of Plastic Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI USA
| | - Maisha Kasole
- grid.14003.360000 0001 2167 3675Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Wisconsin Institute for Translational Neuroengineering (WITNe), University of Wisconsin-Madison, Madison, WI USA
| | - Andrew J. Shoffstall
- grid.67105.350000 0001 2164 3847Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH USA ,grid.410349.b0000 0004 5912 6484Advanced Platform Technology Center, Louis Stokes Cleveland VA Medical Center, Cleveland, OH USA
| | - Samuel O. Poore
- grid.14003.360000 0001 2167 3675Division of Plastic Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI USA
| | - Kip A. Ludwig
- grid.14003.360000 0001 2167 3675Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Wisconsin Institute for Translational Neuroengineering (WITNe), University of Wisconsin-Madison, Madison, WI USA ,grid.14003.360000 0001 2167 3675Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI USA
| | - Aaron M. Dingle
- grid.14003.360000 0001 2167 3675Division of Plastic Surgery, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI USA
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25
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Ramprasad A, Kodan P, Jonnalagadda K, Bir R, Verma N, Sahni K, Vikram NK, Soneja M, Mirdha BR, Wig N. Seroprevalence of Strongyloides infection among steroid recipients in a tertiary care centre in North India. Infez Med 2022; 30:593-601. [PMID: 36482946 PMCID: PMC9715000 DOI: 10.53854/liim-3004-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/10/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Strongyloides stercoralis (S. stercoralis), a unique parasite, can cause mortal disease even years after the exposure. Iatrogenic use of steroids can complicate asymptomatic infections to a life-threatening hyperinfection and/or disseminated infection. Data regarding seroprevalence of strongyloidiasis remains scarce and this knowledge gap needs due attention in many endemic countries including India. AIM The present study is aimed at assessing the seroprevalence of Strongyloides infection and the need for routine screening among individuals receiving steroid therapy. METHODOLOGY Eighty patients receiving steroid therapy and thirty healthy volunteers who had not received any immunosuppressive drugs and/or anthelminthic therapy in last six months were enrolled as cases and controls respectively and they were screened by Strongyloides IgG ELISA. RESULTS Among the 80 patients on steroids, the mean cumulative prednisolone equivalent dose received was 8.2 g (±11.2 g) for a mean duration of 184 days, 16 patients (20%, 95% CI 11.9-30) had a positive Strongyloides IgG serology. Only 4 controls (4/30, 13.3%, CI 3.8-30.7) tested positive (p=0.4). CONCLUSIONS Our study demonstrated a Strongyloides seroprevalence of 20% in the study population emphasizing the need for screening for Strongyloides infection prior to immunosuppressive therapy in order to prevent hyperinfection or possible dissemination.
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Affiliation(s)
- Aishwarya Ramprasad
- Department of Medicine, All India Institute of Medical Sciences, New Delhi,
India
| | - Parul Kodan
- Department of Medicine, All India Institute of Medical Sciences, New Delhi,
India
| | - Kirtana Jonnalagadda
- Department of Medicine, All India Institute of Medical Sciences, New Delhi,
India
| | - Raunak Bir
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi,
India
| | - Nishant Verma
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi,
India
| | - Kanika Sahni
- Department of Dermatology, All India Institute of Medical Sciences, New Delhi,
India
| | - Naval K Vikram
- Department of Medicine, All India Institute of Medical Sciences, New Delhi,
India
| | - Manish Soneja
- Department of Medicine, All India Institute of Medical Sciences, New Delhi,
India
| | - Bijay Ranjan Mirdha
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi,
India
| | - Naveet Wig
- Department of Medicine, All India Institute of Medical Sciences, New Delhi,
India
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26
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Bagri NK, Khan M, Pandey RM, Lodha R, Kabra SK, Angurana SK, Awasthi S, Bamnawat H, Bhat JI, Bhutia TD, Charoo BA, Choudhary A, Choudhary B, Das RR, Dwibedi B, Ghosh S, Girish M, Gulla KM, Goyal JP, Gupta P, I S, Jindal A, John J, Joshi P, Kaur R, Khera D, Kumar A, Kumar P, Kumar P, Lalitha AV, Maheshwari M, Malik S, Mondal R, Muralidharan J, Pawar G, Prasad A, Rao SK, Ratageri VH, Sarkar M, Satpathy AK, Sankar J, Sharma S, Singh A, Singh K, Singhal T, Sood M, Sudeepthi SV, Tiwari L, Verma N, Yonzon R. Initial Immunomodulation and Outcome of Children with Multisystem Inflammatory Syndrome Related to COVID-19: A Multisite Study from India. Indian J Pediatr 2022; 89:1236-1242. [PMID: 35699843 PMCID: PMC9192925 DOI: 10.1007/s12098-022-04254-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/11/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To determine the outcomes in children with MIS-C receiving different immunomodulatory treatment. METHODS In this multicentric, retrospective cohort study, data regarding treatment and outcomes of children meeting the WHO case definition for MIS-C, were collected. The primary composite outcome was the requirement of vasoactive/inotropic support on day 2 or beyond or need of mechanical ventilation on day 2 or beyond after initiation of immunomodulatory treatment or death during hospitalization in the treatment groups. Logistic regression and propensity score matching analyses were used to compare the outcomes in different treatment arms based on the initial immunomodulation, i.e., IVIG alone, IVIG plus steroids, and steroids alone. RESULTS The data of 368 children (diagnosed between April 2020 and June 2021) meeting the WHO case definition for MIS-C, were analyzed. Of the 368 subjects, 28 received IVIG alone, 82 received steroids alone, 237 received IVIG and steroids, and 21 did not receive any immunomodulation. One hundred fifty-six (42.39%) children had the primary outcome. On logistic regression analysis, the treatment group was not associated with the primary outcome; only the children with shock at diagnosis had higher odds for the occurrence of the outcome [OR (95% CI): 11.4 (5.19-25.0), p < 0.001]. On propensity score matching analysis, the primary outcome was comparable in steroid (n = 45), and IVIG plus steroid (n = 84) groups (p = 0.515). CONCLUSION While no significant difference was observed in the frequency of occurrence of the primary outcome in different treatment groups, data from adequately powered RCTs are required for definitive recommendations.
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Affiliation(s)
- Narendra Kumar Bagri
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - M Khan
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - R M Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Rakesh Lodha
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - S K Kabra
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | | | - Suresh Kumar Angurana
- Department of Pediatrics, Advanced Pediatric Center, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Shally Awasthi
- Department of Pediatrics, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Harshita Bamnawat
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Javeed Iqbal Bhat
- Department of Pediatrics, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India
| | - Tsultem D Bhutia
- Department of Pediatrics, New STNMMS Hospital, Gangtok, Sikkim, India
| | - Bashir Ahmad Charoo
- Department of Pediatrics, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India
| | - Abhijit Choudhary
- Department of Pediatrics, All India Institute of Medical Sciences, Nagpur, Maharashtra, India
| | - Bharat Choudhary
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Rashmi Ranjan Das
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Bhagirathi Dwibedi
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Sanajit Ghosh
- Department of Pediatrics, Medical College Kolkata, Kolkata, West Bengal, India
| | - Meenakshi Girish
- Department of Pediatrics, All India Institute of Medical Sciences, Nagpur, Maharashtra, India
| | - Krishna Mohan Gulla
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Jagdish Prasad Goyal
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Prakriti Gupta
- Department of Pediatrics, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Shivanand I
- Department of Pediatrics, KIMS, Hubbali, Karnataka, India
| | - Atul Jindal
- Department of Pediatrics, All India Institute of Medical Sciences, Raipur, India
| | - Joseph John
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Preetha Joshi
- Department of Pediatrics, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, India
| | - Ravleen Kaur
- Department of Pediatrics, Dr Rajendra Prasad Government Medical College Kangra at Tanda, Himachal Pradesh, India
| | - Daisy Khera
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Amit Kumar
- Department of Pediatrics, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Pradeep Kumar
- Department of Pediatrics, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Prawin Kumar
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - A V Lalitha
- Department of Pediatric Intensive Care, St. John's Medical College and Hospital, Bangalore, Karanataka, India
| | - Mahesh Maheshwari
- Department of Pediatrics, All India Institute of Medical Sciences, Bhopal, India
| | - Shikha Malik
- Department of Pediatrics, All India Institute of Medical Sciences, Bhopal, India
| | - Rakesh Mondal
- Department of Pediatrics, Medical College Kolkata, Kolkata, West Bengal, India
| | - Jayashree Muralidharan
- Department of Pediatrics, Advanced Pediatric Center, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Gayatri Pawar
- Department of Pediatrics, KIMS, Hubbali, Karnataka, India
| | - Arun Prasad
- Department of Pediatrics, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Sunil Kumar Rao
- Department of Pediatrics, Institute of Medical Sciences, BHU, Varanasi, Uttar Pradesh, India
| | | | - Mihir Sarkar
- Department of Pediatrics, Medical College Kolkata, Kolkata, West Bengal, India
| | - Amit Kumar Satpathy
- Department of Pediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Jhuma Sankar
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Seema Sharma
- Department of Pediatrics, Dr Rajendra Prasad Government Medical College Kangra at Tanda, Himachal Pradesh, India
| | - Ankur Singh
- Department of Pediatrics, Institute of Medical Sciences, BHU, Varanasi, Uttar Pradesh, India
| | - Kuldeep Singh
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Tanu Singhal
- Department of Pediatrics, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, India
| | - Mangla Sood
- Department of Pediatrics, IGMC, Shimla, Himachal Pradesh, India
| | | | - Lokesh Tiwari
- Department of Pediatrics, All India Institute of Medical Sciences, Patna, Bihar, India
| | - Nishant Verma
- Department of Pediatrics, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Ruth Yonzon
- Department of Pediatrics, New STNMMS Hospital, Gangtok, Sikkim, India
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Kumar R, Gupta ID, Verma A, Singh S, Kumari R, Verma N. Genetic polymorphism in HSPB6 gene and their association with heat tolerance traits in Indian Karan Fries ( Bos taurus x Bos indicus) cattle. Anim Biotechnol 2022; 33:1416-1427. [PMID: 33781169 DOI: 10.1080/10495398.2021.1899939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Heat shock proteins (HSPs) act as a chaperone activity ensuring the folding, unfolding, and refolding of denatured proteins, which help in a protective role during thermal stress in dairy cattle. This study aimed to detect genetic variations of the HSPB6 gene and to determine their association with heat tolerance traits in Karan Fries cattle. Five single nucleotide polymorphisms (SNPs) (SNP 1-5) were reported in the Karan Fries cattle, which included three transitions viz. SNP1-g.161G > A, SNP2-g.436G > A, and SNP4-g.2152A > G and two transversions viz. SNP3-g.1743C > G, SNP5-g.2417A > T. The association analysis revealed that the three SNPs loci i.e., SNP1-g.161G > A, SNP2-g.436G > A, and SNP3-g.1743C > G were significantly (p < 0.01) associated with the respiration rate (RR) and rectal temperature (RT) (°C) traits. Furthermore, in the case of heat tolerance coefficient (HTC) trait was found significantly associated (p < 0.01) with SNPs loci i.e., SNP1-g.161G > A, SNP2-g.436G > A, and SNP3-g.1743C > G. The Hap 4 (GACAT) was found to more adaptable than cattle of other haplotypes as reflected by lower values of RR, RT and HTC. This study provides the first association analyses between the SNPs and haplotypes of HSPB6 gene and heat tolerance traits in Karan Fries cattle, which could be used as effective SNP markers in genetic selection for heat tolerance in cattle breeding program.
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Affiliation(s)
- Rakesh Kumar
- Division of Animal and Fishery Sciences, ICAR-Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Ishwar Dayal Gupta
- Division of Dairy Cattle Breeding, ICAR-National Dairy Research Institute, Karnal, India
| | - Archana Verma
- Division of Dairy Cattle Breeding, ICAR-National Dairy Research Institute, Karnal, India
| | - Sohanvir Singh
- Division of Dairy Cattle Physiology, ICAR-National Dairy Research Institute, Karnal, India
| | - Ragini Kumari
- Block Animal Husbandry Officer, Ekangarsarai, Nalanda, India
| | - Nishant Verma
- Department of Animal Genetics and Breeding, Dr. G. C. Negi College of Veterinary and Animal Sciences, Palampur, India
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Sink J, Nimmagadda K, Zhao M, Andrei A, Gay H, Kaplan RM, Gao X, Pfenniger A, Patil KD, Arora R, Kim SS, Chicos AB, Lin AC, Passman RS, Knight BP, Verma N. Esophageal temperature management during cryoballoon ablation for atrial fibrillation. J Cardiovasc Electrophysiol 2022; 33:2560-2566. [PMID: 36317453 PMCID: PMC10100377 DOI: 10.1111/jce.15724] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/01/2022] [Accepted: 09/21/2022] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Esophageal thermal injury (ETI) is a well-recognized complication of atrial fibrillation (AF) ablation. Previous studies have demonstrated that direct esophageal cooling reduces ETI during radiofrequency AF ablation. The purpose of this study was to evaluate the use of an esophageal warming device to prevent ETI during cryoballoon ablation (CBA) for AF. METHODS This prospective, double-blinded study enrolled 42 patients with symptomatic AF undergoing CBA. Patients were randomized to the treatment group with esophageal warming (42°C) using recirculated water through a multilumen, silicone tube inserted into the esophagus (EnsoETM®; Attune Medical) (WRM) or the control group with a luminal single-electrode esophageal temperature monitoring probe (LET). Patients underwent upper endoscopy esophagogastroduodenoscopy (EGD) the following day. ETI was classified into four grades. RESULTS Baseline patient characteristics were similar between groups. Procedural characteristics including number of freezes, total freeze time, early freeze terminations, coldest balloon temperature, procedure duration, posterior wall ablation, and proton pump inhibitor and transesophageal echocardiogram use before procedure were not different between groups. The EGD was completed in 40/42 patients. There was significantly more ETI in the WRM group compared to the LET group (n = 8 [38%] vs. n = 1 [5%], p = 0.02). All ETI lesions were grade 1 (erythema) or 2 (superficial ulceration). Total freeze time in the left inferior pulmonary vein was predictive of ETI (360 vs. 300 s, p = 0.03). CONCLUSION Use of a luminal heat exchange tube for esophageal warming during CBA for AF was paradoxically associated with a higher risk of ETI.
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Affiliation(s)
- Joshua Sink
- Department of Internal MedicineNorthwestern UniversityChicagoIllinoisUSA
| | - Kiran Nimmagadda
- Division of GastroenterologyNorthwestern UniversityChicagoIllinoisUSA
| | - Manyun Zhao
- Department of Preventative Medicine and BiostatisticsNorthwestern UniversityChicagoIllinoisUSA
| | - Adin‐Cristian Andrei
- Department of Preventative Medicine and BiostatisticsNorthwestern UniversityChicagoIllinoisUSA
| | - Hawkins Gay
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
| | | | - Xu Gao
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
| | - Anna Pfenniger
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
| | | | - Rishi Arora
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
| | - Susan S. Kim
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
| | | | - Albert C. Lin
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
| | - Rod S. Passman
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
| | | | - Nishant Verma
- Division of CardiologyNorthwestern UniversityChicagoIllinoisUSA
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Verma N, Laird J, Moore N, Park H. Radioresistant Lung Oligometastases: Impact of Histology and Dose on Local Control. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Maiti R, Mohanty RR, Mishra A, Dey A, Verma N. Levothyroxine Therapy and Predictors of Cardiovascular Risk in Clinical Hypothyroidism: A Prospective Cohort Study. Cureus 2022; 14:e30969. [DOI: 10.7759/cureus.30969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
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31
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Jr JHL, Verma N, Moore N, Park H, Aneja S. Predictors of Early Polymetastasis after Comprehensive Local Therapy for Synchronous Oligometastatic NSCLC. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Wallington D, Verma N, Laird J, Aneja S, Park H, Yang D. Comparison of Diagnostic PET and 4D CT-Based Tumor Delineation for Oligometastatic Lung Tumors. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abu-Omar A, Kennedy P, Yakub M, Robbins JB, Yassin A, Verma N, Scaglione M, Khosa F. Extra credit for disruption: trend of disruption in radiology academic journals. Clin Radiol 2022; 77:893-901. [PMID: 36150935 DOI: 10.1016/j.crad.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 07/05/2022] [Indexed: 11/03/2022]
Abstract
AIM To identify the most disruptive publications, which are those that are cited more frequently than their own references, in academic radiology journals and their characteristics, such as the number of authors and relative time to publication. MATERIAL AND METHODS A comprehensive literature search was undertaken to identify the 100 most disruptive publications in the field of radiology. Subsequently, statistical analysis was applied to establish the distribution of disruptive scores of the isolated publications using a non-parametric probability density function. The relation between disruptive scores and citation counts was then determined, with the aid of a correlation coefficient. Finally, data regarding any significant connection between disruption scores and time of publication, number of authors, and study design were examined. RESULTS Analysing the top 100 papers in increments of 10-year periods showed no significant difference in the distribution of disruption scores over time. No correlation between an article's citation count and disruption score was established. Additionally, no significant relation between the number of authors/study design and disruption scores was identified. CONCLUSION The disruption score highlights significant impact elements not entirely accounted for by citation count. Its potential benefit in assessing scientific impact should be contemplated.
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Affiliation(s)
- A Abu-Omar
- Department of Radiology, The James Cook University Hospital NHS Foundation Trust, Middlesbrough, UK.
| | - P Kennedy
- Department of Radiology, Cork University Hospital, Cork, Ireland
| | - M Yakub
- Physiotherapy and Nutrition, California University of Science and Medicine, California, USA
| | - J B Robbins
- Faculty Development and Enrichment, University of Wisconsin School of Medicine and Public Health, Wisconsin, USA
| | - A Yassin
- Department of Radiology, Ain Shams University, Cairo, Egypt
| | - N Verma
- Abdominal and Cardiac Imaging, University of Florida, Florida, USA
| | - M Scaglione
- Department of Radiology, The James Cook University Hospital NHS Foundation Trust, Middlesbrough, UK; Department of Radiology, University of Sassari, Sardinia, Italy; Department of Radiology, Pineta Grande Hospital, Castel Volturno, Italy
| | - F Khosa
- Department of Emergency Radiology, University of British Columbia, Vancouver General Hospital, Vancouver, Canada
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Gupta H, Pant G, Verma N. Malnutrition in childhood cancer patients: Magnitude, key indicators and outcome. Pediatric Hematology Oncology Journal 2022. [DOI: 10.1016/j.phoj.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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35
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Kumar S, Awasthi S, Verma N, Gupta S. Comparison of small lumen versus large lumen inter costal catheter drainage in empyema thoracis on degree of comfort and re-expansion of lungs: An open label, quasi randomized study. Clinical Epidemiology and Global Health 2022. [DOI: 10.1016/j.cegh.2022.101142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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36
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Doeker M, Jupke A, Mielke K, Kappauf K, Ergezinger P, Sehl T, Rother D, Spöring J, Seibt L, Verma N, Bocola M, Daussmann T. Downstream Processing of an Enzymatic Synthesis of (2
R
,4
R
)‐Pentanediol in Pilot Scale. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M. Doeker
- RWTH Aachen University Lehrstuhl für Fluidverfahrenstechnik Forckenbeckstr. 51 52074 Aachen Germany
| | - A. Jupke
- RWTH Aachen University Lehrstuhl für Fluidverfahrenstechnik Forckenbeckstr. 51 52074 Aachen Germany
| | - K. Mielke
- RWTH Aachen University Lehrstuhl für Fluidverfahrenstechnik Forckenbeckstr. 51 52074 Aachen Germany
| | - K. Kappauf
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - P. Ergezinger
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - T. Sehl
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - D. Rother
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - J. D. Spöring
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - L. Seibt
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - N. Verma
- Enzymaster Deutschland GmbH Neusser Str. 39 40219 Düsseldorf Germany
| | - M. Bocola
- Enzymaster Deutschland GmbH Neusser Str. 39 40219 Düsseldorf Germany
| | - T. Daussmann
- Enzymaster Deutschland GmbH Neusser Str. 39 40219 Düsseldorf Germany
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Fabian ID, Abdallah E, Abdullahi SU, Abdulqader RA, Abdulrahaman AA, Abouelnaga S, Ademola-Popoola DS, Adio A, Afifi MA, Afshar AR, Aggarwal P, Aghaji AE, Ahmad A, Akib MNR, Akinsete A, Al Harby L, Al Mesfer S, Al Ani MH, Alarcón Portabella S, Al-Badri SAF, Alcasabas APA, Al-Dahmash SA, Alejos A, Alemany-Rubio E, Alfa Bio AI, Alfonso Carreras Y, Al-Haddad CE, Al-Hussaini HHY, Ali AM, Alia DB, Al-Jadiry MF, Al-Jumaily U, Alkatan HM, All-Eriksson C, Al-Mafrachi AARM, Almeida AA, Alsawidi KM, Al-Shaheen AASM, Al-Shammary EH, Amankwaa-Frempong D, Amiruddin PO, Armytasari I, Astbury NJ, Atalay HT, Ataseven E, Atchaneeyasakul LO, Atsiaya R, Autrata R, Balaguer J, Balayeva R, Barranco H, Bartoszek P, Bartuma K, Bascaran C, Bechrakis NE, Beck Popovic M, Begimkulova AS, Benmiloud S, Berete RC, Berry JL, Bhaduri A, Bhat S, Bhattacharyya A, Biewald EM, Binkley E, Blum S, Bobrova N, Boldt H, Bonanomi MTBC, Bouda GC, Bouguila H, Brennan RC, Brichard BG, Buaboonnam J, Budiongo A, Burton MJ, Calderón-Sotelo P, Calle Jara DA, Camuglia JE, Cano MR, Capra M, Caspi S, Cassoux N, Castela G, Castillo L, Català-Mora J, Cavieres I, Chandramohan A, Chantada GL, Chaudhry S, Chawla B, Chen W, Chiwanga FS, Chuluunbat T, Cieslik K, Clark A, Cockcroft RL, Comsa C, Correa Llano MG, Corson TW, Couitchere L, Cowan-Lyn KE, Csóka M, Dangboon W, Das A, Das P, Das S, Davanzo JM, Davidson A, De Francesco S, De Potter P, Quintero D K, Demirci H, Desjardins L, Díaz Coronado RY, Dimaras H, Dodgshun AJ, Donato Macedo CR, Dragomir MD, Du Y, Du Bruyn M, Du Plessis J, Dudeja G, Eerme K, Eka Sutyawan IW, El Kettani A, Elbahi AM, Elder JE, Elhaddad AM, Elhassan MMA, Elzembely MM, Ericksen C, Essuman VA, Evina TGA, Ezegwui IR, Fadoo Z, Fandiño AC, Faranoush M, Fasina O, Fernández DDPG, Fernández-Teijeiro A, Foster A, Frenkel S, Fu LD, Fuentes-Alabi SL, Garcia JL, García Aldana D, Garcia Pacheco HN, Geel JA, Ghassemi F, Girón AV, Goenz MA, Gold AS, Goldberg H, Gole GA, Gomel N, Gonzalez E, Gonzalez Perez G, González-Rodríguez L, Gorfine M, Graells J, Gregersen PA, Grigorovski NDAK, Guedenon KM, Gunasekera DS, Gündüz AK, Gupta H, Gupta S, Gupta V, Hadjistilianou T, Hamel P, Hamid SA, Hamzah N, Hansen ED, Harbour JW, Hartnett ME, Hasanreisoglu M, Muhammad H, Hassan S, Hassan S, Hautz W, Haydar H, Hederova S, Hessissen L, Hongeng S, Hordofa DF, Hubbard GB, Hummelen M, Husakova K, Hussein Al-Janabi AN, Ibanga A, Ida R, Ilic VR, Islamov Z, Jairaj V, Janjua T, Jeeva I, Ji X, Jo DH, Jones MM, Kabesha Amani TB, Kabore RL, Kaliki S, Kalinaki A, Kamsang P, Kantar M, Kapelushnik N, Kardava T, Kebudi R, Keomisy J, Kepak T, Ketteler P, Khan ZJ, Khaqan HA, Khetan V, Khodabande A, Khotenashvili Z, Kim JW, Kim JH, Kiratli H, Kivela TT, Klett A, Koç I, Kosh Komba Palet JE, Krivaitiene D, Kruger M, Kulvichit K, Kuntorini MW, Kyara A, Lam GC, Larson SA, Latinović S, Laurenti KD, Lavy Y, Lavric Groznik A, Leverant AA, Li C, Li K, Limbu B, Liu CH, Quah B, López JP, Lukamba RM, Luna-Fineman S, Lutfi D, Lysytsia L, Madgar S, Magrath GN, Mahajan A, Maitra P, Maka E, Makimbetov EK, Maktabi A, Maldonado C, Mallipatna A, Manudhane R, Manzhuova L, Martín-Begue N, Masud S, Matende IO, Mattosinho CCDS, Matua M, Mayet I, Mbumba FB, McKenzie JD, Mehrvar A, Mengesha AA, Menon V, Mercado GJV, Mets MB, Midena E, Miller A, Mishra DKC, Mndeme FG, Mohamedani AA, Mohammad MT, Moll AC, Montero MM, Moreira C, Mruthyunjaya P, Msina MS, Msukwa G, Mudaliar SS, Muma KIM, Munier FL, Murray TG, Musa KO, Mushtaq A, Musika AA, Mustak H, Mustapha T, Muyen OM, Myezo KH, Naidu G, Naidu N, Nair AG, Natarajan S, Naumenko L, Ndoye Roth PA, Nency YM, Neroev V, Ng Y, Nikitovic M, Nkanga ED, Nkumbe HE, Numbi MN, Nummi K, Nuruddin M, Nyaywa M, Nyirenda C, Obono-Obiang G, Oliver SCN, Oporto J, Ortega-Hernández M, Oscar AH, Ossandon D, Pagarra H, Paintsil V, Paiva L, Palanivelu MS, Papyan R, Parrozzani R, Pascual Morales CR, Paton KE, Pe'er J, Peralta Calvo J, Perić S, Pham CTM, Philbert R, Plager DA, Pochop P, Polania RA, Polyakov V, Ponce J, Qadir AO, Qayyum S, Qian J, Refaeli D, Rahman A, Rajkarnikar P, Ramanjulu R, Ramasubramanian A, Ramirez-Ortiz MA, Randhawa JK, Randrianarisoa HL, Raobela L, Rashid R, Reddy M, Renner LA, Reynders D, Ribadu D, Ritter-Sovinz P, Rogowska A, Rojanaporn D, Romero L, Roy SR, Saab RH, Saakyan S, Sabhan AH, Sagoo MS, Said AMA, Saiju R, Salas B, San Román Pacheco S, Sánchez GL, Sanchez Orozco AJ, Sayalith P, Scanlan TA, Schlüter S, Schwab C, Sedaghat A, Seth R, Sgroi M, Shah AS, Shakoor SA, Sharma MK, Sherief ST, Shields CL, Sia D, Siddiqui SN, Sidi cheikh S, Silva S, Singh AD, Singh U, Singha P, Sitorus RS, Skalet AH, Soebagjo HD, Sorochynska T, Ssali G, Stacey AW, Staffieri SE, Stahl ED, Steinberg DM, Stones DK, Strahlendorf C, Suarez MEC, Sultana S, Sun X, Superstein R, Supriyadi E, Surukrattanaskul S, Suzuki S, Svojgr K, Sylla F, Tamamyan G, Tan D, Tandili A, Tang J, Tarrillo Leiva FF, Tashvighi M, Tateshi B, Teh KH, Tehuteru ES, Teixeira LF, Tekavcic Pompe M, Thawaba ADM, Theophile T, Toledano H, Trang DL, Traoré F, Tripathy D, Tuncer S, Tyau-Tyau H, Umar AB, Unal E, Uner OE, Urbak SF, Ushakova TL, Usmanov RH, Valeina S, Valente P, van Hoefen Wijsard M, Vasquez Anchaya JK, Vaughan LO, Veleva-Krasteva NV, Verma N, Victor AA, Viksnins M, Villacís Chafla EG, Villegas VM, Vishnevskia-Dai V, Waddell K, Wali AH, Wang YZ, Wangtiraumnuay N, Wetter J, Widiarti W, Wilson MW, Wime ADC, Wiwatwongwana A, Wiwatwongwana D, Wolley Dod C, Wong ES, Wongwai P, Wu SQ, Xiang D, Xiao Y, Xu B, Xue K, Yaghy A, Yam JC, Yang H, Yanga JM, Yaqub MA, Yarovaya VA, Yarovoy AA, Ye H, Yee RI, Yousef YA, Yuliawati P, Zapata López AM, Zein E, Zhang Y, Zhilyaeva K, Zia N, Ziko OAO, Zondervan M, Bowman R. The Global Retinoblastoma Outcome Study: a prospective, cluster-based analysis of 4064 patients from 149 countries. The Lancet Global Health 2022; 10:e1128-e1140. [PMID: 35839812 PMCID: PMC9397647 DOI: 10.1016/s2214-109x(22)00250-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/06/2022] [Accepted: 05/23/2022] [Indexed: 02/01/2023] Open
Abstract
Background Retinoblastoma is the most common intraocular cancer worldwide. There is some evidence to suggest that major differences exist in treatment outcomes for children with retinoblastoma from different regions, but these differences have not been assessed on a global scale. We aimed to report 3-year outcomes for children with retinoblastoma globally and to investigate factors associated with survival. Methods We did a prospective cluster-based analysis of treatment-naive patients with retinoblastoma who were diagnosed between Jan 1, 2017, and Dec 31, 2017, then treated and followed up for 3 years. Patients were recruited from 260 specialised treatment centres worldwide. Data were obtained from participating centres on primary and additional treatments, duration of follow-up, metastasis, eye globe salvage, and survival outcome. We analysed time to death and time to enucleation with Cox regression models. Findings The cohort included 4064 children from 149 countries. The median age at diagnosis was 23·2 months (IQR 11·0–36·5). Extraocular tumour spread (cT4 of the cTNMH classification) at diagnosis was reported in five (0·8%) of 636 children from high-income countries, 55 (5·4%) of 1027 children from upper-middle-income countries, 342 (19·7%) of 1738 children from lower-middle-income countries, and 196 (42·9%) of 457 children from low-income countries. Enucleation surgery was available for all children and intravenous chemotherapy was available for 4014 (98·8%) of 4064 children. The 3-year survival rate was 99·5% (95% CI 98·8–100·0) for children from high-income countries, 91·2% (89·5–93·0) for children from upper-middle-income countries, 80·3% (78·3–82·3) for children from lower-middle-income countries, and 57·3% (52·1-63·0) for children from low-income countries. On analysis, independent factors for worse survival were residence in low-income countries compared to high-income countries (hazard ratio 16·67; 95% CI 4·76–50·00), cT4 advanced tumour compared to cT1 (8·98; 4·44–18·18), and older age at diagnosis in children up to 3 years (1·38 per year; 1·23–1·56). For children aged 3–7 years, the mortality risk decreased slightly (p=0·0104 for the change in slope). Interpretation This study, estimated to include approximately half of all new retinoblastoma cases worldwide in 2017, shows profound inequity in survival of children depending on the national income level of their country of residence. In high-income countries, death from retinoblastoma is rare, whereas in low-income countries estimated 3-year survival is just over 50%. Although essential treatments are available in nearly all countries, early diagnosis and treatment in low-income countries are key to improving survival outcomes. Funding Queen Elizabeth Diamond Jubilee Trust.
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Sink J, Verma N. Employing New Criteria for Confirmation of Conduction Pacing - Achieving True Left Bundle Branch Pacing May Be Harder Than Meets the Eye. J Cardiovasc Electrophysiol 2022; 33:2192-2194. [PMID: 35842803 DOI: 10.1111/jce.15624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 11/26/2022]
Abstract
In recent years, conduction system pacing (CSP) has garnered significant attention from the electrophysiology (EP) community This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Joshua Sink
- Northwestern University, Feinberg School of Medicine, Department of Internal Medicine
| | - Nishant Verma
- Northwestern University, Feinberg School of Medicine, Division of Cardiology
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Nicksic PJ, Donnelly DT, Verma N, Setiz AJ, Shoffstall AJ, Ludwig KA, Dingle AM, Poore SO. Electrical Stimulation of Acute Fractures: A Narrative Review of Stimulation Protocols and Device Specifications. Front Bioeng Biotechnol 2022; 10:879187. [PMID: 35721861 PMCID: PMC9201474 DOI: 10.3389/fbioe.2022.879187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
Orthopedic fractures have a significant impact on patients in the form of economic loss and functional impairment. Beyond the standard methods of reduction and fixation, one adjunct that has been explored since the late 1970s is electrical stimulation. Despite robust evidence for efficacy in the preclinical arena, human trials have mixed results, and this technology is not widely accepted. The purpose of this review is to examine the body of literature supporting electrical stimulation for the purpose of fracture healing in humans with an emphasis on device specifications and stimulation protocols and delineate a minimum reporting checklist for future studies of this type. We have isolated 12 studies that pertain to the administration of electrical stimulation for the purpose of augmenting fracture healing in humans. Of these, one was a direct current electrical stimulation study. Six studies utilized pulsed electromagnetic field therapy and five used capacitive coupling. When examining these studies, the device specifications were heterogenous and often incomplete in what they reported, which rendered studies unrepeatable. The stimulation protocols also varied greatly study to study. To demonstrate efficacy of electrical stimulation for fractures, the authors recommend isolating a fracture type that is prone to nonunion to maximize the electrical stimulation effect, a homogenous study population so as to not dilute the effect of electrical stimulation, and increasing scientific rigor in the form of pre-registration, blinding, and sham controls. Finally, we introduce the critical components of minimum device specification reporting for repeatability of studies of this type.
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Affiliation(s)
- Peter J. Nicksic
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - D’Andrea T. Donnelly
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Nishant Verma
- Department of Biomedical Engineering, University of Wisconsin—Madison, Madison, WI, United States
- Wisconsin Institute for Translational Neuroengineering (WITNe), University of Wisconsin—Madison, Madison, WI, United States
| | - Allison J. Setiz
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Andrew J. Shoffstall
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
- APT Center, Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States
| | - Kip A. Ludwig
- Department of Biomedical Engineering, University of Wisconsin—Madison, Madison, WI, United States
- Wisconsin Institute for Translational Neuroengineering (WITNe), University of Wisconsin—Madison, Madison, WI, United States
- Department of Neurological Surgery, University of Wisconsin—Madison, Madison, WI, United States
| | - Aaron M. Dingle
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Samuel O. Poore
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
- *Correspondence: Samuel O. Poore,
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Vashistha VK, Verma N, Kumar R, Tyagi I, Gaur A, Bala R. Enantioseparation of linezolid and tedizolid using validated high-performance liquid chromatographic method. Chirality 2022; 34:1044-1052. [PMID: 35577389 DOI: 10.1002/chir.23472] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 01/03/2023]
Abstract
This paper reports the separation of two chiral antibacterial agents namely, linezolid and tedizolid using a validated high-performance liquid chromatographic method. In the current work, glycopeptide-based chiral column, CHIROBIOTIC® V2 (5-μm particle size, L × I.D. 25 cm × 4.6 mm) was employed with a mobile phase containing methanol and 0.15% aq. trifluoracetic acid (75:25%, v/v) in isocratic elution approach at flow rate of 1 ml min-1 . The separation condition was customized (in terms of resolution values and retention times) was carried out by changing the content of the mobile phase, column temperature, flow rate, and so on. Results showed that the chromatographic separation was achieved within 15 min and average resolution values were 4.6 and 4.8 for tedizolid and linezolid, respectively. The detection limit values were 14.85 and 14.16 ng ml-1 , respectively, for tedizolid enantiomers. Further, validation of separation parameters was performed by considering the international conference on harmonization guidelines, and ultimately, the mechanism of chiral recognition was also established.
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Affiliation(s)
| | - Nishant Verma
- Department of Chemistry, Kalindi College, University of Delhi, Delhi, India
| | - Rajender Kumar
- Department of Chemistry and Chemical Science, Central University of Himachal Pradesh, Solan, India
| | - Inderjeet Tyagi
- Zoological Survey of India, Ministry of Environment, Forest and Climate Change, Government of India, Kolkata, India
| | - Aprajita Gaur
- Department of Chemistry, Kalindi College, University of Delhi, Delhi, India
| | - Renu Bala
- Department of Chemistry, Kalindi College, University of Delhi, Delhi, India
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Verma N, Knudsen B, Skubal A, Gholston A, Frank J, Ludwig K. Characterization of Electrodes to Record Neural Signals in the Periphery. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l7595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nishant Verma
- Biomedical EngineeringUniversity of Wisconsin ‐ MadisonMadisonWI
| | - Bruce Knudsen
- Biomedical EngineeringUniversity of Wisconsin ‐ MadisonMadisonWI
| | - Aaron Skubal
- Biomedical EngineeringUniversity of Wisconsin ‐ MadisonMadisonWI
| | - Aaron Gholston
- Biomedical EngineeringUniversity of Wisconsin ‐ MadisonMadisonWI
| | - Jennifer Frank
- Biomedical EngineeringUniversity of Wisconsin ‐ MadisonMadisonWI
| | - Kip Ludwig
- Biomedical EngineeringUniversity of Wisconsin ‐ MadisonMadisonWI
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Mahajan A, Bakhshi S, Seth R, Verma N, Mandal P, Singh M, Jain S, Radhakrishnan V, Kanvinde S, Arora RS, Dinand V, Kalra M, Taluja A, Mallick S, Kumar R, Chandra J. Hodgkin Lymphoma in Children Under 5 Years: Do They Behave Differently? J Pediatr Hematol Oncol 2022; 44:186-190. [PMID: 35293880 DOI: 10.1097/mph.0000000000002423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 12/15/2021] [Indexed: 01/09/2023]
Abstract
The median age of presentation for Hodgkin lymphoma (HL) is lower in developing countries with a higher proportion under 5 years of age possibly attributable to the high prevalence of Epstein-Barr virus-driven disease. It is unclear whether the clinical presentation and outcomes of this cohort are different with concern regarding late effects being most pronounced in this age group. We report the outcome of children under 5 years of age enrolled in the InPOG-HL-15-01, the first multicentric collaborative study for newly diagnosed children and adolescents with HL from India. Thirty-five (9%) of the study population was younger than 5 years with a striking male preponderance of 34:1. They were less likely to have bulky disease, mediastinal or splenic involvement. The outcomes appear to be at least as favorable as in the older patient group. Efforts need to be made to evolve treatment strategies that spare this very young cohort from potential late effects.
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Affiliation(s)
- Amita Mahajan
- Department of Pediatric Oncology, Indraprastha Apollo Hospital
| | | | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences
| | - Nishant Verma
- Department of Pediatrics, King George's Medical University, Lucknow, Uttar Pradesh
| | - Piali Mandal
- Department of Pediatrics, Kalawati Saran Children's Hospital
| | - Manisha Singh
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, Bihar
| | - Sandeep Jain
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute
| | | | - Shailesh Kanvinde
- Department of Pediatric Hematology Oncology, Deenanath Mangeshkar Hospital, Pune
| | - Raman S Arora
- Department of Pediatric Oncology, Max Super Specialty Hospital
| | - Veronique Dinand
- Palliative and Supportive Unit, BJ Wadia Hospital, Mumbai, Maharashtra, India
| | - Manas Kalra
- Department of Pediatric Oncology, Sir Ganga Ram Hospital
| | | | | | | | - Jagdish Chandra
- Department of Pediatrics, Kalawati Saran Children's Hospital
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Verma N, Mukhopadhyay S, Barnable P, Plagianos MG, Teleshova N. Estradiol inhibits HIV-1 BaL infection and induces CFL1 expression in peripheral blood mononuclear cells and endocervical mucosa. Sci Rep 2022; 12:6165. [PMID: 35418661 PMCID: PMC9008051 DOI: 10.1038/s41598-022-10163-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/30/2022] [Indexed: 11/15/2022] Open
Abstract
An inhibitory effect of estradiol (E2) on HIV-1 infection was suggested by several reports. We previously identified increased gene expression of actin-binding protein cofilin 1 (CFL1) in endocervix in the E2-dominated proliferative phase of the menstrual cycle. Actin cytoskeleton has an integral role in establishing and spreading HIV-1 infection. Herein, we studied in vitro effects of E2 on HIV-1 infection and on CFL1 expression to gain insight into the mechanism of HIV-1 inhibition by E2. E2 dose-dependently inhibited HIV-1BaL infection in peripheral blood mononuclear cells (PBMCs) and endocervix. In PBMCs and endocervix, E2 increased protein expression of total CFL1 and phosphorylated CFL1 (pCFL1) and pCFL1/CFL1 ratios. LIMKi3, a LIM kinase 1 and 2 inhibitor, abrogated the phenotype and restored infection in both PBMCs and endocervix; inhibited E2-induced expression of total CFL1, pCFL1; and decreased pCFL1/CFL1 ratios. Knockdown of CFL1 in PBMCs also abrogated the phenotype and partially restored infection. Additional analysis of soluble mediators revealed decreased concentrations of pro-inflammatory chemokines CXCL10 and CCL5 in infected tissues incubated with E2. Our results suggest a link between E2-mediated anti-HIV-1 activity and expression of CFL1 in PBMCs and endocervical mucosa. The data support exploration of cytoskeletal signaling pathway targets for the development of prevention strategies against HIV-1.
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Affiliation(s)
- N Verma
- Center for Biomedical Research, Population Council, 1230 York Ave., New York, NY, 10065, USA
| | - S Mukhopadhyay
- Center for Biomedical Research, Population Council, 1230 York Ave., New York, NY, 10065, USA
| | - P Barnable
- Center for Biomedical Research, Population Council, 1230 York Ave., New York, NY, 10065, USA
| | - M G Plagianos
- Center for Biomedical Research, Population Council, 1230 York Ave., New York, NY, 10065, USA
| | - N Teleshova
- Center for Biomedical Research, Population Council, 1230 York Ave., New York, NY, 10065, USA.
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Chaudhary A, Singh K, Verma N, Kumar S, Kumar D, Sharma PP. Chromenes - A Novel Class of Heterocyclic Compounds: Recent Advancements and Future Directions. Mini Rev Med Chem 2022; 22:2736-2751. [PMID: 35362382 DOI: 10.2174/1389557522666220331161636] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 10/21/2021] [Revised: 01/01/2022] [Accepted: 01/18/2022] [Indexed: 11/22/2022]
Abstract
Chromenes are an important class of oxygen-containing heterocyclic compounds with intriguing biological activity, a simple structure with mild adverse effects. Chromenes are abundantly found in nature in the form of alkaloids, tocopherols, flavone, and anthocyanins. The Chromene nucleus is an important moiety for the discovery of new drug candidates. Chromene derivatives have shown various pharmacological activities like antiviral, anticancer, anti-inflammatory, antitumour, antimicrobial, antiproliferative, anticholinesterase, EPR-1 (Effector cell Protease Receptor-1) antagonist and MAO (Mono-Amine Oxidase) inhibitors. In SAR (Structure activity Relationship) studies with chromene nucleus, it was found that 4-aryl moiety, 3-cyano group, and 2-amino group are essential for the cytotoxic activity. Substitution at the 7th position with electron donating group enhances the pharmacological activity whereas the electron withdrawing group decreases the pharmacological activity. Structural modifications at the chromene ring, middle aliphatic portion, and terminal aromatic ring yielded more potential 5-HT1A (5-Hydroxytryptamine 1A) receptor affinity and antidiabetic activity. Chromenes with cyclic secondary amine and 4-hydroxy phenyl substituents yielded potent antimicrobial compounds. This review summarizes the importance of chromenes in rational drug design and the development of novel molecules with a variety of pharmacological activities.
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Affiliation(s)
- Anurag Chaudhary
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, NH-58, Baghpat Road Crossing, Bypass Road, Meerut-250005, India
| | - Kalpana Singh
- HIMT College of Pharmacy, Knowledge Park-1,Greater Noida-201310, India
| | - Nishant Verma
- Panchwati College of Pharmacy, Ghat Institutional Area, NH-58, Delhi Haridwar bypass Road,, Meerut, India
| | - Sachin Kumar
- IIMT College of Medical Sciences, IIMT University, Meerut, India
| | - Deepak Kumar
- Dept. of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Shoolini University, Solan-173229, India
| | - Prince Prashant Sharma
- Department of Pharmaceutical Sciences, Faculty of Medical Science and Health, Gurukula Kangri University, Haridwar-249404, India
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Raj R, Uppuluri R, Parambil B, Dhariwal N, Totadri S, Mathew LG, Radhakrishnan V, Charan A, Yadav SP, Mahajan A, Mudaliar S, Sharma R, Manglani M, Kharya G, Verma N, Arora R, Ghara N, Ks R, Radhakrishnan N, Iyer N, Mehta P, Singh A, Patel S, John J, Bhat S, Badiger S, Siddaiahgari S, Kakkar S, Scott J, Jayaraman D, Srinivasan A, Krishnan Y, Sonamani N, Misra R, Bafna V, Seth R, Kutty PK, Kanakia S, Rao V, Prakash A, Bharadwaj V, Chinnasamy G. Outcomes of COVID-19 in children with cancer – Report from the Indian Pediatric Oncology Group (InPOG) COVID-19 registry in India. Pediatric Hematology Oncology Journal 2022. [PMCID: PMC8920536 DOI: 10.1016/j.phoj.2022.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The clinical outcomes of COVID-19 infection in children with cancer have been variable worldwide. Therefore, we aimed to collect data from all regions in India through a national collaborative study and identify factors that cause mortality directly related to COVID-19 infection. Methods Data was collected prospectively on children across India on cancer therapy and diagnosed with COVID-19 infections from 47 centers from April 2020 to October 2021. Information was recorded on the demographics, the number of children that required intervention, and the outcome of the infection. In addition, we analyzed the impact of the delta variant in 2021. Results A total of 659 children were studied, of whom 64% were male and 36% were female. The data from the eastern region was sparse, and this was a collection bias. COVID-19 infection was predominantly seen in children less than five years. The delta variant had a higher impact in the southern region, and this was statistically significant. Of the 659 children, 30 children died (4.5%), however only 7 of the deaths were directly attributed to COVID-19 infection (1%). Conclusion The study reports the largest nationally representative cohort of children with cancer and COVID-19 to date in India. We identified demographic and clinical factors associated with increased all-cause mortality in patients with cancer. Complete characterization of the cohort has provided further insights into the effects of COVID-19 on cancer outcomes. The low mortality allows us to recommend that specific cancer treatments be continued without delays in therapy.
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Padole P, Arora A, Sharma P, Chand P, Verma N, Kumar A. Saroglitazar for Nonalcoholic Fatty Liver Disease: A Single Centre Experience in 91 Patients. J Clin Exp Hepatol 2022; 12:435-439. [PMID: 35535066 PMCID: PMC9077151 DOI: 10.1016/j.jceh.2021.06.015] [Citation(s) in RCA: 5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 06/12/2021] [Indexed: 12/12/2022] Open
Abstract
Background Saroglitazar is a novel, dual peroxisome proliferator-activated receptors-α/γ agonist and is being investigated for the treatment of nonalcoholic fatty liver disease (NAFLD). Patients and methods Consecutive overweight (body mass index [BMI] >23 kg/m2) patients of NAFLD, diagnosed based on controlled attenuation parameter (CAP) >248 dB/m, and attending the outpatient department of a tertiary care centre in New Delhi, were enrolled. Patients with cirrhosis (liver stiffness measurement [LSM] >13.5 kPa) and those with concomitant liver disease due to other aetiologies (alcohol, viral, etc.) were excluded. All patients received saroglitazar 4 mg/day; in addition, they were advised to reduce weight and were counselled regarding diet and exercise. At 3-month follow-up, patients were categorized into those who were able to reduce ≥5% body weight and those who could n'ot, and both these groups were compared. Results A total of 91 patients (median age 45 years [range 18-66 years]; 81% men) were included in the study. The median BMI was 29.3 kg/m2 (range 23.6-42.2 kg/m2). The baseline median (range) aspartate transaminase, alanine transaminase, gamma glutamyl transferase, LSM and CAP values were 40 IU/dL (range 22-144 IU/dL), 48 IU/dL (range 13-164 IU/dL), 42 IU/dL (range 4-171 IU/dL), 6.7 kPa (range 3.6-13.1 kPa), and 308 dB/m (range 249-400 dB/m). All patients tolerated saroglitazar well. At 3-month, 57 patients (63%) were able to reduce ≥5% weight, whereas in the remaining 34 patients (37%), the weight reduction was <5% from baseline. Transaminases values improved in both the groups; however, LSM and CAP values improved only in patients who reduced weight. Conclusion In overweight patients with NAFLD, a 3-month therapy with saroglitazar is able to improve transaminases but not LSM and CAP values unless accompanied by weight reduction of at least 5%. Larger randomized controlled trials are needed to document the independent effect of saroglitazar in these patients.
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Key Words
- ALP, alkaline phosphatase
- ALT, alanine transaminase
- AST, aspartate transaminase
- BMI, body mass index
- CAP, controlled attenuation parameter
- DCGI, Drug Controller General of India
- FDA, Food and Drug Administration
- GGT, gamma glutamyl transferase
- HCV, hepatitis C virus
- IQR, interquartile range
- IU, international units
- LSM, liver stiffness measurement
- MAFLD, metabolic (dysfunction) associated fatty liver disease
- NAFLD
- NAFLD, nonalcoholic fatty liver disease
- NASH, nonalcoholic steatohepatitis
- PPAR, peroxisome proliferator-activated receptor
- controlled attenuation parameter
- dB, decibels
- kPa, kilopascal
- obesity
- pPAR agonist
- saroglitazar
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Affiliation(s)
- Prateek Padole
- Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Sir Ganga Ram Hospital, New Delhi, India
| | - Anil Arora
- Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Sir Ganga Ram Hospital, New Delhi, India
| | - Praveen Sharma
- Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Sir Ganga Ram Hospital, New Delhi, India
| | - Prakash Chand
- Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Sir Ganga Ram Hospital, New Delhi, India
| | - Nishant Verma
- Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Sir Ganga Ram Hospital, New Delhi, India
| | - Ashish Kumar
- Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Sir Ganga Ram Hospital, New Delhi, India
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Kumar V, Surve A, Biswal D, Verma N, Kashyap S, Venkatesh P, Mirdha BR. Intra-ocular hydatid cyst in a child: A rare presentation. Eur J Ophthalmol 2022; 33:NP70-NP74. [PMID: 35166612 DOI: 10.1177/11206721221079481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Intra-ocular cystic lesion in a young child can be parasitic lesion, old retinal detachment with cysts or simply a vitreous cyst. Intra-ocular localization of hydatid cysts is extremely rare accounting for less than one percent of all cases. This case describes a young child with left eye pain, redness and progressive diminution of vision with progressively enlarging intra- ocular cyst. Diagnosed as intra-ocular hydatid cyst, the radiological, intraoperative and microbiological features of same are described. Also, the management required in such a case is discussed.
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Affiliation(s)
- Vinod Kumar
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, 28730All India Institute of Medical Sciences, New Delhi, India
| | - Abhidnya Surve
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, 28730All India Institute of Medical Sciences, New Delhi, India
| | - Debasish Biswal
- Department of Microbiology, 28730All India Institute of Medical Sciences, New Delhi, India
| | - Nishant Verma
- Department of Microbiology, 28730All India Institute of Medical Sciences, New Delhi, India
| | - Seema Kashyap
- Department of Pathology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, 28730All India Institute of Medical Sciences, New Delhi, India
| | - Pradeep Venkatesh
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, 28730All India Institute of Medical Sciences, New Delhi, India
| | - Bijay Ranjan Mirdha
- Department of Microbiology, 28730All India Institute of Medical Sciences, New Delhi, India
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Nicksic PJ, Donnelly DT, Hesse M, Bedi S, Verma N, Seitz AJ, Shoffstall AJ, Ludwig KA, Dingle AM, Poore SO. Electronic Bone Growth Stimulators for Augmentation of Osteogenesis in In Vitro and In Vivo Models: A Narrative Review of Electrical Stimulation Mechanisms and Device Specifications. Front Bioeng Biotechnol 2022; 10:793945. [PMID: 35237571 PMCID: PMC8882968 DOI: 10.3389/fbioe.2022.793945] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/17/2022] [Indexed: 01/23/2023] Open
Abstract
Since the piezoelectric quality of bone was discovered in 1957, scientists have applied exogenous electrical stimulation for the purpose of healing. Despite the efforts made over the past 60 years, electronic bone growth stimulators are not in common clinical use. Reasons for this include high cost and lack of faith in the efficacy of bone growth stimulators on behalf of clinicians. The purpose of this narrative review is to examine the preclinical body of literature supporting electrical stimulation and its effect on bone properties and elucidate gaps in clinical translation with an emphasis on device specifications and mechanisms of action. When examining these studies, trends become apparent. In vitro and small animal studies are successful in inducing osteogenesis with all electrical stimulation modalities: direct current, pulsed electromagnetic field, and capacitive coupling. However, large animal studies are largely unsuccessful with the non-invasive modalities. This may be due to issues of scale and thickness of tissue planes with varying levels of resistivity, not present in small animal models. Additionally, it is difficult to draw conclusions from studies due to the varying units of stimulation strength and stimulation protocols and incomplete device specification reporting. To better understand the disconnect between the large and small animal model, the authors recommend increasing scientific rigor for these studies and reporting a novel minimum set of parameters depending on the stimulation modality.
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Affiliation(s)
- Peter J. Nicksic
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - D’Andrea T. Donnelly
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Madison Hesse
- Des Moines University School of Medicine and Health Sciences, Des Moines, IA, United States
| | - Simran Bedi
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States,Department of Biomedical Engineering, University of Wisconsin—Madison, Madison, WI, United States
| | - Nishant Verma
- Department of Biomedical Engineering, University of Wisconsin—Madison, Madison, WI, United States,Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States
| | - Allison J. Seitz
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Andrew J. Shoffstall
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
| | - Kip A. Ludwig
- Department of Biomedical Engineering, University of Wisconsin—Madison, Madison, WI, United States,Wisconsin Institute for Translational Neuroengineering (WITNe), Madison, WI, United States
| | - Aaron M. Dingle
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Samuel O. Poore
- Division of Plastic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States,*Correspondence: Samuel O. Poore,
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SaiKiran KVP, Biswal D, Agrawal SK, Batra P, Sagar T, Choudhary SK, Verma N, Chaudhry R. Anaerobes in cardiac infections: A decade experience from the tertiary care center. Indian J Med Microbiol 2022; 40:274-278. [PMID: 35031155 DOI: 10.1016/j.ijmmb.2021.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 12/09/2021] [Accepted: 12/23/2021] [Indexed: 11/05/2022]
Abstract
PURPOSE Anaerobic infections are common yet life-threatening. They are being recovered from all sites of the body, including the cardiovascular system. This study was aimed to determine the retrospective analysis on the isolation of anaerobes in cardiovascular samples received for a decade-long duration. It helps in knowing the frequency of isolation of anaerobic causes of cardiovascular infection. METHODS All cardiovascular samples from the department of Cardio-thoracic vascular surgery from January 2010 to December 2020 were studied. RESULTS Of 601 samples received, predominant samples were vegetations and valvular tissues of 258, followed by 98 samples of pericardial tissues, 92 samples of embolus, 90 samples of blood and post-operative collections, and 63 excised aneurysms and vascular grafts. Of the total, 15 samples grew anaerobes where Clostridium species were the predominant isolates. Clostridioides difficile was isolated in 2 samples. CONCLUSIONS Anaerobes in cardiovascular samples are uncommon yet form a significant cause of morbidity and mortality. Most infections are from the contiguous spread, penetrating trauma, and hematogenous causing endocarditis or valvular infections. These conditions and samples form the seat of infectious focus and clinical suspicion towards the anaerobic cause of these conditions, especially in conventional routine culture-negative samples. Timely diagnosis of anaerobic infections plays a vital role in the good prognostic outcome of patients undergoing cardiothoracic and vascular surgery.
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Affiliation(s)
| | | | | | - Priyam Batra
- Department of Microbiology, AIIMS, New Delhi, India
| | - Tanu Sagar
- Department of Microbiology, AIIMS, New Delhi, India
| | - S K Choudhary
- Department of Cardiothoracic and Vascular Surgery, AIIMS, New Delhi, India
| | | | - Rama Chaudhry
- Department of Microbiology, AIIMS, New Delhi, India.
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50
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Al Said S, Garg P, Jenkins S, Ahmad M, Qintar M, Kyriacou A, Verma N, Providencia R, Camm J, Alabed S. Catheter ablation for atrial fibrillation. Hippokratia 2022. [DOI: 10.1002/14651858.cd014810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Samer Al Said
- Department of Cardiology & Angiology II; University Heart Center Freiburg-Bad Krozingen; Bad Krozingen Germany
| | - Pankaj Garg
- Department of Infection, Immunity and Cardiovascular Disease; University of Sheffield; Sheffield UK
| | | | - Mahmood Ahmad
- Department of Cardiology; Royal Free Hospital, Royal Free London NHS Foundation Trust; London UK
| | - Mohammed Qintar
- Department of Cardiovascular Medicine; Saint Luke’s Mid America Heart Institute; University of Missouri-Kansas City; Kansas City MO USA
| | - Andreas Kyriacou
- Department of Infection, Immunity and Cardiovascular Disease; University of Sheffield; Sheffield UK
| | - Nishant Verma
- Division of Cardiology, Department of Medicine; Northwestern University, Feinberg School of Medicine; Chicago Illinois USA
| | - Rui Providencia
- Barts Heart Centre; St Bartholomew's Hospital, Barts Health NHS Trust; London UK
| | - John Camm
- Molecular and Clinical Sciences Research Institute; St George's University of London; London UK
| | - Samer Alabed
- Department of Clinical Radiology; Sheffield Teaching Hospitals; Sheffield UK
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