Rahul Raiker
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Rahul Raiker has a total of 40 co-authors. Here are the top co-authors by number of shared publications:
- Haig Pakhchanian
George Washington University School of Medicine and Health Sciences, Washington, DC
11 shared publications - Sinan Kardeş
Department of Medical Ecology and Hydroclimatology, Istanbul Faculty of Medicine Istanbul University Istanbul Turkey
7 shared publications - Latika Gupta
Department of Rheumatology Royal Wolverhampton Hospitals NHS Trust Wolverhampton UK
3 shared publications - Ahmad Khan
Division of Gastroenterology and Liver Disease, University Hospitals Cleveland Medical Center, Cleveland, USA
2 shared publications - Ali Suat Kuzu
Department of Medical Ecology and Hydroclimatology, İstanbul Faculty of Medicine, İstanbul University, Istanbul, Turkey
2 shared publications - Chengappa Kavadichanda
Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
2 shared publications
Latest Publications
- Open Access
- 19 November 2022
- Published by Springer Nature in Cureus
- Vol. 14 (11) , e31681
The Impact of the COVID-19 Pandemic on Orthopaedic Knee Procedures: A National Multicentered Analysis
Introduction: The coronavirus disease 2019 (COVID-19) pandemic strained the United States healthcare system, and associated policies resulted in the postponement or cancellation of many elective surgeries. While most orthopaedic surgeons are aware of how the pandemic affected their patients’ care, broader national trends in the operative treatment of orthopaedic knee pathology are poorly characterized. Therefore, the purpose of this study was to identify trends in orthopaedic knee procedures during the COVID-19 pandemic. Methods: The TriNetX database was queried for orthopaedic knee procedures performed from March 2018 to May 2021. Procedures were classified as arthroplasty (total knee arthroplasty (TKA), revision total knee arthroplasty) or non-arthroplasty (tendon or ligament repair, fracture fixation). Procedural volume per healthcare organization was determined over five seasons from March 2020 to May 2021 and compared to overlapping pre-pandemic periods from March 2018 to May 2019. Descriptive analysis was performed, and comparisons were made using a Student’s T-test. Results: Compared to the pre-pandemic period, there were significant decreases in primary TKA (p=0.016), femoral or entire tibial component revision TKA (p=0.005), and open treatment of femoral shaft fractures (p=0.007) in spring 2020. Procedural volume returned to baseline in summer 2020 through winter 2021. In spring 2021, primary TKA (p=0.017) and one component revision TKA (p=0.003) increased compared to the pre-pandemic period. Conclusion: The greatest decrease in knee procedures occurred early in the pandemic. Rates of these procedures have since rebounded, with some exceeding pre-pandemic levels. Hospitals are now better able to accommodate orthopaedic surgical volume while continuing to care for patients with COVID-19.
- 19 November 2022
- Published by Springer Nature in Cureus
- Vol. 14 (11) , e31681
Open AccessThe Impact of the COVID-19 Pandemic on Orthopaedic Knee Procedures: A National Multicentered Analysis
Introduction: The coronavirus disease 2019 (COVID-19) pandemic strained the United States healthcare system, and associated policies resulted in the postponement or cancellation of many elective surgeries. While most orthopaedic surgeons are aware of how the pandemic affected their patients’ care, broader national trends in the operative treatment of orthopaedic knee pathology are poorly characterized. Therefore, the purpose of this study was to identify trends in orthopaedic knee procedures during the COVID-19 pandemic. Methods: The TriNetX database was queried for orthopaedic knee procedures performed from March 2018 to May 2021. Procedures were classified as arthroplasty (total knee arthroplasty (TKA), revision total knee arthroplasty) or non-arthroplasty (tendon or ligament repair, fracture fixation). Procedural volume per healthcare organization was determined over five seasons from March 2020 to May 2021 and compared to overlapping pre-pandemic periods from March 2018 to May 2019. Descriptive analysis was performed, and comparisons were made using a Student’s T-test. Results: Compared to the pre-pandemic period, there were significant decreases in primary TKA (p=0.016), femoral or entire tibial component revision TKA (p=0.005), and open treatment of femoral shaft fractures (p=0.007) in spring 2020. Procedural volume returned to baseline in summer 2020 through winter 2021. In spring 2021, primary TKA (p=0.017) and one component revision TKA (p=0.003) increased compared to the pre-pandemic period. Conclusion: The greatest decrease in knee procedures occurred early in the pandemic. Rates of these procedures have since rebounded, with some exceeding pre-pandemic levels. Hospitals are now better able to accommodate orthopaedic surgical volume while continuing to care for patients with COVID-19.
- 9 October 2022
- Published by Wiley in JDDG: Journal der Deutschen Dermatologischen Gesellschaft
- Vol. 20 (11) , 1505-1508
Risk of COVID‐19 related complications in vitiligo patients: A database study
- 9 October 2022
- Published by Wiley in JDDG: Journal der Deutschen Dermatologischen Gesellschaft
- Vol. 20 (11) , 1505-1508
Risk of COVID‐19 related complications in vitiligo patients: A database study
- 15 June 2022
- Published by Springer Nature in Environmental Science and Pollution Research
- Vol. 29 (52) , 79041-79052
COVID-19’s impact on interest in gastrointestinal topics
There has been a disparity in familiarity regarding the public interest in gastroenterology terminologies during the COVID-19 pandemic. This study aimed to understand the outcomes of the public’s view on gastrointestinal topics and their potential social effects. This study is a comparative analysis of American Google Trends gastrointestinal terminology during the COVID-19 pandemic compared to a similar time frame (March 2018-February 2020) to determine how trends in the patient-seeking behavior of gastrointestinal terminology changed throughout the pandemic. The analysis discovered a substantial decrease in search volumes of gastrointestinal topics, more significantly in the first pandemic months. Later in the pandemic, search volumes trended toward pre-pandemic years in terms of public interest. In the case of gastrointestinal procedures, endoscopy and colonoscopies, they surpassed pre-pandemic interest levels statistically (p-values of 0.01 and 0.002). The public’s decreased interest in gastrointestinal topics at the beginning of the COVID-19 pandemic may have adverse effects on the healthcare maintenance of patients who could have had a positive outcome in their gastrointestinal health with proper monitoring. Although gastrointestinal internet searches increased toward pre-pandemic levels as the seasons progressed, further research is needed to determine the social impact of decreased public interest.
- 15 June 2022
- Published by Springer Nature in Environmental Science and Pollution Research
- Vol. 29 (52) , 79041-79052
COVID-19’s impact on interest in gastrointestinal topics
There has been a disparity in familiarity regarding the public interest in gastroenterology terminologies during the COVID-19 pandemic. This study aimed to understand the outcomes of the public’s view on gastrointestinal topics and their potential social effects. This study is a comparative analysis of American Google Trends gastrointestinal terminology during the COVID-19 pandemic compared to a similar time frame (March 2018-February 2020) to determine how trends in the patient-seeking behavior of gastrointestinal terminology changed throughout the pandemic. The analysis discovered a substantial decrease in search volumes of gastrointestinal topics, more significantly in the first pandemic months. Later in the pandemic, search volumes trended toward pre-pandemic years in terms of public interest. In the case of gastrointestinal procedures, endoscopy and colonoscopies, they surpassed pre-pandemic interest levels statistically (p-values of 0.01 and 0.002). The public’s decreased interest in gastrointestinal topics at the beginning of the COVID-19 pandemic may have adverse effects on the healthcare maintenance of patients who could have had a positive outcome in their gastrointestinal health with proper monitoring. Although gastrointestinal internet searches increased toward pre-pandemic levels as the seasons progressed, further research is needed to determine the social impact of decreased public interest.
- 28 April 2022
- Published by SAGE Publications in Dermatitis®
- Vol. 33 (6S) , S136-S138
COVID-19 Outcomes in Pediatric Patients With Atopic Dermatitis: A Multicenter Analysis
- 28 April 2022
- Published by SAGE Publications in Dermatitis®
- Vol. 33 (6S) , S136-S138
COVID-19 Outcomes in Pediatric Patients With Atopic Dermatitis: A Multicenter Analysis
- 18 February 2022
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 47 (6) , 1186-1188
Evaluating the safety and efficacy of COVID-19 vaccination in patients with hidradenitis suppurativa
- 18 February 2022
- Published by Oxford University Press (OUP) in Clinical and Experimental Dermatology
- Vol. 47 (6) , 1186-1188
Evaluating the safety and efficacy of COVID-19 vaccination in patients with hidradenitis suppurativa
- Open Access
- 27 January 2022
- Published by Oxford University Press (OUP) in British Journal of Dermatology
- Vol. 187 (2) , 251-253
Examining the risk of breakthrough infection and COVID ‐19 vaccination safety in patients with atopic dermatitis
- 27 January 2022
- Published by Oxford University Press (OUP) in British Journal of Dermatology
- Vol. 187 (2) , 251-253
Open AccessExamining the risk of breakthrough infection and COVID ‐19 vaccination safety in patients with atopic dermatitis
- 27 January 2022
- Published by Springer Nature in Clinical Rheumatology
- Vol. 41 (7) , 2257-2260
COVID-19 vaccination outcomes among patients with dermatomyositis: a multicentered analysis
- 27 January 2022
- Published by Springer Nature in Clinical Rheumatology
- Vol. 41 (7) , 2257-2260
COVID-19 vaccination outcomes among patients with dermatomyositis: a multicentered analysis
- 27 November 2021
- Published by Springer Nature in Clinical Rheumatology
- Vol. 41 (3) , 721-730
Axial spondyloarthritis may protect against poor outcomes in COVID-19: propensity score matched analysis of 9766 patients from a nationwide multi-centric research network
Introduction The outcomes of COVID-19 in patients with axial spondyloarthritis (ax-SpA) have not been explored in detail. Tumour necrosis factor inhibitors (TNFi) are commonly used for ax-SpA patients, and how they influence outcomes may have implications on COVID-19 management. Methods A nationwide multi-centric research network was queried for patients with ax-SpA, including ankylosing spondylitis (AS) and non-radiographic SpA (nr-SpA) who had developed COVID-19. An equal number of propensity score(PS) matched controls were extracted from the database amongst patients with COVID-19 who did not have any inflammatory arthritis. Outcomes included mortality and others including hospitalization, intensive care unit, ventilation, acute kidney injury (AKI), renal replacement therapy, acute respiratory distress syndrome, cerebral infarction, venous thromboembolism (VTE), and sepsis. Results We identified 9766 patients with ax-SpA (924 AS and 8842 nr-SpA) and 691,862 without SpA who had COVID-19. In the unmatched comparison, patients with ax-SpA had higher risk ratios (RR) for all outcomes. After matching for demographics and comorbidities, patients with ax-SpA had lower RR for mortality [RR: 0.707 (95% CI: 0.598–0.836), p < 0.0001], severe COVID-19 [RR: 0.791 (0.69–0.906), p = 0.0007], hospitalization [RR: 0.872 (0.826–0.921), p < 0.0001], and AKI [RR: 0.902 (0.816–0.997), p = 0.044]. Only the risk of VTE was higher in ax-SpA patients [RR: 1.219 (1.037–1.433), p = 0.016]. Amongst the ax-SpA group, males had worse outcomes in 9 out of the 11 domains except for VTE and cerebral infarction, while blacks had worse outcomes in all except for mortality and the need for renal replacement therapy. AS had similar risk ratios for all outcomes compared with nr-SpA except hospitalization [RR: 1.457 (1.03–2.06), p = 0.0318]. There was no difference in outcomes in patients who had received TNFi in the year previous to COVID-19 infection. Ax-SpA patients who had been prescribed non-steroidal anti-inflammatory drugs in the 3 months prior to COVID-19 had poorer outcomes. Conclusion In conclusion, COVID-19 outcomes were better in patients with ax-SpA as compared with PS matched controls except for increased risk for VTE. The use of TNFi is not associated with better or worse outcomes. These apparently protective effects observed need to be validated and explored further. Key Points • Patients with axial spondyloarthritis have lower mortality and morbidity during COVID-19 infections as compared with propensity score matched controls. • Axial spondyloarthritis is associated with higher risks for venous thromboembolism during COVID-19. • There is no difference in outcomes between ankylosing spondylitis and non-radiographic spondyloarthritis except in rates of hospitalization, which were higher in ankylosing spondylitis. • Use of tumour necrosis factor inhibitors did not influence COVID-19 outcomes.
- 27 November 2021
- Published by Springer Nature in Clinical Rheumatology
- Vol. 41 (3) , 721-730
Axial spondyloarthritis may protect against poor outcomes in COVID-19: propensity score matched analysis of 9766 patients from a nationwide multi-centric research network
Introduction The outcomes of COVID-19 in patients with axial spondyloarthritis (ax-SpA) have not been explored in detail. Tumour necrosis factor inhibitors (TNFi) are commonly used for ax-SpA patients, and how they influence outcomes may have implications on COVID-19 management. Methods A nationwide multi-centric research network was queried for patients with ax-SpA, including ankylosing spondylitis (AS) and non-radiographic SpA (nr-SpA) who had developed COVID-19. An equal number of propensity score(PS) matched controls were extracted from the database amongst patients with COVID-19 who did not have any inflammatory arthritis. Outcomes included mortality and others including hospitalization, intensive care unit, ventilation, acute kidney injury (AKI), renal replacement therapy, acute respiratory distress syndrome, cerebral infarction, venous thromboembolism (VTE), and sepsis. Results We identified 9766 patients with ax-SpA (924 AS and 8842 nr-SpA) and 691,862 without SpA who had COVID-19. In the unmatched comparison, patients with ax-SpA had higher risk ratios (RR) for all outcomes. After matching for demographics and comorbidities, patients with ax-SpA had lower RR for mortality [RR: 0.707 (95% CI: 0.598–0.836), p < 0.0001], severe COVID-19 [RR: 0.791 (0.69–0.906), p = 0.0007], hospitalization [RR: 0.872 (0.826–0.921), p < 0.0001], and AKI [RR: 0.902 (0.816–0.997), p = 0.044]. Only the risk of VTE was higher in ax-SpA patients [RR: 1.219 (1.037–1.433), p = 0.016]. Amongst the ax-SpA group, males had worse outcomes in 9 out of the 11 domains except for VTE and cerebral infarction, while blacks had worse outcomes in all except for mortality and the need for renal replacement therapy. AS had similar risk ratios for all outcomes compared with nr-SpA except hospitalization [RR: 1.457 (1.03–2.06), p = 0.0318]. There was no difference in outcomes in patients who had received TNFi in the year previous to COVID-19 infection. Ax-SpA patients who had been prescribed non-steroidal anti-inflammatory drugs in the 3 months prior to COVID-19 had poorer outcomes. Conclusion In conclusion, COVID-19 outcomes were better in patients with ax-SpA as compared with PS matched controls except for increased risk for VTE. The use of TNFi is not associated with better or worse outcomes. These apparently protective effects observed need to be validated and explored further. Key Points • Patients with axial spondyloarthritis have lower mortality and morbidity during COVID-19 infections as compared with propensity score matched controls. • Axial spondyloarthritis is associated with higher risks for venous thromboembolism during COVID-19. • There is no difference in outcomes between ankylosing spondylitis and non-radiographic spondyloarthritis except in rates of hospitalization, which were higher in ankylosing spondylitis. • Use of tumour necrosis factor inhibitors did not influence COVID-19 outcomes.
- 9 October 2021
- Published by Elsevier in Journal of Autoimmunity
- Vol. 125, 102730
Short term outcomes of COVID-19 in lupus: Propensity score matched analysis from a nationwide multi-centric research network
- 9 October 2021
- Published by Elsevier in Journal of Autoimmunity
- Vol. 125, 102730
Short term outcomes of COVID-19 in lupus: Propensity score matched analysis from a nationwide multi-centric research network
- 25 September 2021
- Published by Springer Nature in Clinical Rheumatology
- Vol. 41 (1) , 317-319
COVID-19 among patients with Behçet syndrome in the United States
- 25 September 2021
- Published by Springer Nature in Clinical Rheumatology
- Vol. 41 (1) , 317-319
COVID-19 among patients with Behçet syndrome in the United States