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Kechagias KS, Laleye JD, Drmota J, Geropoulos G, Kyrtsonis G, Zafeiri M, Triantafyllidis KK, Stathi D. Minimal change disease following COVID-19 vaccination: A systematic review. PLoS One 2024; 19:e0297568. [PMID: 38442131 PMCID: PMC10914286 DOI: 10.1371/journal.pone.0297568] [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] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 01/04/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND The newly developed COVID-19 vaccines are highly effective and safe. However, a small portion of vaccine recipients experience a wide range of adverse events. Recently, glomerular disease, including the development of Minimal Change Disease (MCD), has been observed after administration of different COVID-19 vaccines, although causality remains a matter of debate. AIM The aim of this systematic review was to comprehensively examine the available literature and provide an overview of reported cases of MCD following vaccination against SARS-CoV-2. RESULTS We identified 46 eligible articles which included 94 cases with MCD following COVID-19 vaccination of which one case was reported twice due to a second relapse. Fifty-five participants were males (59.1%, 55/93) and 38 (40.9%, 38/93) were females with a mean age of 45.02 years (SD:20.95). From the included patients 50 (50/94, 53.1%) were described as new-onset and 44 (46.9%, 44/94) as relapse. On average, symptomatology developed 16.68 days (SD: 22.85) after the administration of the vaccine irrespective of the dose. Data about symptoms was reported in 68 cases with the most common being oedema (80.8%, 55/68), followed by weight gain (26.5%, 18/68) and hypertension (16.1%, 11/68). In terms of outcome, more than half of the patients went into remission (61%, 57/94), while 18 recovered or improved post treatment (19.1%, 18/94). Two people relapsed after treatment (2.1%, 2/94) and two cases (2.1%, 2/94) were reported as not recovered. CONCLUSION MCD is possibly a condition clinicians may see in patients receiving COVID-19 vaccines. Although this adverse event is uncommon, considering the limited published data and the absence of confirmed causality, increased clinical awareness is crucial for the early recognition and optimal management of these patients.
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Affiliation(s)
- Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Joshua D. Laleye
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Jan Drmota
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | | | - Georgios Kyrtsonis
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Marina Zafeiri
- School of Cardiovascular Medicine and Sciences, King’s College London, London, United Kingdom
| | | | - Dimitra Stathi
- Department of Endocrinology and Diabetes, King’s College Hospital NHS Foundation Trust, London, United Kingdom
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Kechagias KS, Triantafyllidis KK, Zouridaki G, Savvidou M. Obstetric and neonatal outcomes in pregnant women with idiopathic polyhydramnios: a systematic review and meta-analysis. Sci Rep 2024; 14:5296. [PMID: 38438422 PMCID: PMC10912321 DOI: 10.1038/s41598-024-54840-0] [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: 10/07/2023] [Accepted: 02/17/2024] [Indexed: 03/06/2024] Open
Abstract
Although the assessment of the amniotic fluid volume in pregnancy is part of the fetal wellbeing surveillance, the impact of idiopathic polyhydramnios (IP) on maternal and perinatal outcomes in unknown. The aim of this meta-analysis was to investigate the association of IP with different maternal and perinatal outcomes. We screened five electronic databases until December 2023 and performed data extraction and quality assessment using ROBINS-E in duplicates. Pooled risk ratios and 95% confidence intervals (95% CI) were calculated with a random effects model. 38 studies were included. Patients with IP were at increased risk of perinatal complications including preterm delivery (RR 1.96, 95% CI 1.35-2.86; I2 = 92%), placental abruption (RR 3.20, 95% CI 2.20-4.65; I2 = 2%), delivery via caesarean section (RR 1.60, 95% CI 1.39-1.84; I2 = 95%) and postpartum haemorrhage (RR 1.98, 95% CI 1.22-3.22; I2 = 84%). Similarly, IP was associated with increased risk of adverse perinatal outcomes including low APGAR score (RR 3.0, 95% CI 1.23-7.35; I2 = 95%), stillbirth (RR 4.75, 95% CI 2.54-8.86; I2 = 9%) and perinatal mortality (RR 4.75, 95% CI 2.67-8.48; I2 = 37%). This meta-analysis suggests that pregnant women with IP may be at increased risk of perinatal complications and adverse neonatal outcomes. However, data remains inconclusive considering the low quality and high heterogeneity of included studies.PROSPERO registration number: CRD42022359944.
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Affiliation(s)
- Konstantinos S Kechagias
- Department of Metabolism, Digestion and Reproduction & Department of Surgery and Cancer, Faculty of Medicine, IRDB, Imperial College London, Hammersmith Campus, Du Cane Road, 3rd Floor, London, W12 0NN, UK.
| | | | - Georgia Zouridaki
- Department of Metabolism, Digestion and Reproduction & Department of Surgery and Cancer, Faculty of Medicine, IRDB, Imperial College London, Hammersmith Campus, Du Cane Road, 3rd Floor, London, W12 0NN, UK
| | - Makrina Savvidou
- Department of Metabolism, Digestion and Reproduction & Department of Surgery and Cancer, Faculty of Medicine, IRDB, Imperial College London, Hammersmith Campus, Du Cane Road, 3rd Floor, London, W12 0NN, UK
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, UK
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Stathi D, Triantafyllidis KK, Zafeiri M, Karalliedde J, Kechagias KS. COVID-19 induced type 1 diabetes: A systematic review of case reports and series. J Int Med Res 2023; 51:3000605231210403. [PMID: 37940619 PMCID: PMC10637179 DOI: 10.1177/03000605231210403] [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: 06/15/2023] [Accepted: 10/11/2023] [Indexed: 11/10/2023] Open
Abstract
AIMS To provide an overview of reported cases of new-onset type 1 diabetes mellitus (T1D) following COVID-19 infection. METHODS PubMed and Scopus library databases were screened for relevant case reports published between January 2020 and June 2022. Study design, geographic region or language were not restricted. RESULTS Twenty studies were identified and involved 37 patients (20 [54%] male, 17 [46%] female). Median age was 11.5 years (range 8 months-33 years) and 31 (84%) patients were aged ≤17 years. Most patients (33, 89%) presented with diabetic ketoacidosis (DKA). In total, 23 (62%) patients presented at the time of positive COVID-19 testing and 14 (38%) had symptoms consistent with COVID-19 infection or a previous positive test (1-56 days). Diabetes symptomatology was provided in 22 cases and (19, 86%) reported polyuria, polydipsia, polyphagia, fatigue, or weight loss or a combination of the aforementioned in the preceding weeks (3 days-12 weeks). Of the 28 patients that had data on acute and long-term treatment, all recovered well and most were managed with basal bolus insulin regimens. Quality assessment showed that most reports were either 'good' or 'moderate quality'. CONCLUSIONS Although uncommon, new-onset T1D is a condition healthcare professionals may expect to see following a COVID-19 infection.
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Affiliation(s)
- Dimitra Stathi
- Department of Endocrinology and Diabetes, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - Marina Zafeiri
- School of Cardiovascular Medicine and Sciences, King’s College London, London, UK
| | - Janaka Karalliedde
- Department of Endocrinology and Diabetes, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, UK
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Kechagias KS, Zafeiri M, Katsikas Triantafyllidis K, Kyrtsonis G, Geropoulos G, Lyons D, Burney Ellis L, Bowden S, Galani A, Paraskevaidi M, Kyrgiou M. Primary Melanoma of the Cervix Uteri: A Systematic Review and Meta-Analysis of the Reported Cases. Biology 2023; 12:biology12030398. [PMID: 36979090 PMCID: PMC10045237 DOI: 10.3390/biology12030398] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Primary malignant melanoma (MM) of the cervix uteri is a rare and aggressive malignancy of the female reproductive tract. Considering that clinical data on this cancer are scarce, we aimed to comprehensively examine the currently available literature and provide an overview of the reported cases of cervical MM focusing on the clinical characteristics, diagnosis and therapeutic management. We conducted a systematic review of the literature by screening three electronic databases until June 2022. The critical appraisal checklist provided by the Joanna Briggs Institute was employed to evaluate the overall quality of the studies. We included 96 reports, which comprised 137 patients diagnosed with MM of the cervix. The mean age of the patients was 56.5 (median: 58, age range: 33–88). Data regarding menopausal status were provided for 98 patients with 15 being premenopausal and 83 being postmenopausal. The most common presenting symptom was vaginal bleeding (83%, 100/121). Biopsy (either excisional or punch biopsy) was used as the first diagnostic modality in most of the patients (67%, 64/95), followed by cytology (18%, 17/95). In 74 cases, the FIGO staging system for cervical cancer was used with the most common stage being FIGO stage I (38%, 28/74), followed by FIGO stage II (36%, 27/74), FIGO stage III (19%, 14/74) and FIGO stage IV (7%, 5/74). Most of the patients were managed surgically (90%, 119/131) with a hysterectomy (either radical or total), and a salpingo-oophorectomy with/without lymphadenectomy was the most common approach utilized (40%, 48/119). The data of clinical outcomes were provided for 105 patients, of whom 61 died (58%, 61/105) and 44 survived (42%, 44/105). Knowledge regarding the rare occurrence of MM in the cervix and the increased awareness of clinicians can prevent clinical misdiagnosis and ultimately improve further the clinical outcomes of patients developing this rare malignancy.
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Affiliation(s)
- Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Correspondence: ; Tel.: +44-7590803194
| | - Marina Zafeiri
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- King’s College Hospital NHS Foundation Trust, London SE5 9RS, UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Nutrition and Dietetics, Royal Marsden Hospital, London SW3 6JJ, UK
| | - Georgios Kyrtsonis
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of General Surgery, Croydon University Hospital, Croydon, London CR7 7YE, UK
| | - Georgios Geropoulos
- Department of General Surgery, University College London Hospitals, London NW1 2BU, UK
| | - Deirdre Lyons
- Imperial College Healthcare NHS Trust, London W2 1NY, UK
| | - Laura Burney Ellis
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Sarah Bowden
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Imperial College Healthcare NHS Trust, London W2 1NY, UK
| | - Apostolia Galani
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Imperial College Healthcare NHS Trust, London W2 1NY, UK
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Giannos P, Katsikas Triantafyllidis K, Paraskevaidi M, Kyrgiou M, Kechagias KS. Female Dynamics in Authorship of Scientific Publications in the Public Library of Science: A 10-year Bibliometric Analysis of Biomedical Research. Eur J Investig Health Psychol Educ 2023; 13:228-237. [PMID: 36826202 PMCID: PMC9955408 DOI: 10.3390/ejihpe13020018] [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: 11/08/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023] Open
Abstract
Women are generally underrepresented in science, technology, engineering, and mathematics (STEM). As scientific production reflects scholarly impact and participation in the scientific process, the number of journal publications forms a pertinent measure of academic productivity. This study examined the prevalence and evolution of female representation in prominent author positions across multidisciplinary biomedical research. Publications from seven exemplar cross-specialty journals of the Public Library of Science (PLoS Medicine, PLoS Biology, PLoS One, PLoS Computational Biology, PLoS Genetics, PLoS Pathogens, and PLoS Neglected Tropical Diseases) between January 2010 and December 2020 were extracted from Web of Science. Using Genderize.io, the gender of authors from their first names was estimated using a 75% threshold. The association between female prevalence in first and last authorship and journal was evaluated using a binary logistic regression, and odds ratios were estimated against a 50:50 reference on gender. In 266,739 publications, 43.3% of first authors and 26.7% of last authors were females. Across the ten-year period, female first authorship increased by 19.6% and last authorship by 3.2%. Among all journals, PLoS Neglected Tropical Diseases had the greatest total proportion of female first authors (45.7%) and PLoS Medicine of female last authors (32%), while PLoS Computational Biology had the lowest proportion in these categories (23.7% and 17.2%). First authors were less likely to be females in all PLoS journals (p < 0.05) except for PLoS Neglected Tropical Diseases (odds ratio: 0.84, 95% confidence interval: 0.71-1.00), where the odds of female authorship were not significantly different (p = 0.054). Last authors were not more likely to be females in all PLoS journals (p < 0.001). Overall, women still appear underrepresented as first authors in biomedical publications and their representation as last authors has severely lagged. Efforts towards gender equality in scholarly authorship will contribute to the representation of women in biomedical research and ensure that their potential is not lost.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2BX, UK
- Correspondence:
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton TA1 5DA, UK
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Institute of Reproductive and Developmental Biology, Imperial College London, London SW7 2BX, UK
- West London Gynaecological Cancer Centre, Imperial College NHS Trust, London W6 8RF, UK
| | - Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Institute of Reproductive and Developmental Biology, Imperial College London, London SW7 2BX, UK
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Prokopidis K, Giannos P, Katsikas Triantafyllidis K, Kechagias KS, Mesinovic J, Witard OC, Scott D. The authors' reply: 'Comment on: "Effect of vitamin D monotherapy on indices of sarcopenia in community-dwelling older adults: a systematic review and meta-analysis" by Prokopidis et al.'. J Cachexia Sarcopenia Muscle 2022; 13:2757-2758. [PMID: 36082492 PMCID: PMC9745461 DOI: 10.1002/jcsm.13087] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/08/2022] [Indexed: 12/15/2022] Open
Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.,Society of Meta-research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Jakub Mesinovic
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Oliver C Witard
- Centre for Human and Applied Physiological Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - David Scott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
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Fornasiero M, Geropoulos G, Kechagias KS, Psarras K, Katsikas Triantafyllidis K, Giannos P, Koimtzis G, Petrou NA, Lucocq J, Kontovounisios C, Giannis D. Anastomotic Leak in Ovarian Cancer Cytoreduction Surgery: A Systematic Review and Meta-Analysis. Cancers (Basel) 2022; 14:cancers14215464. [PMID: 36358882 PMCID: PMC9653973 DOI: 10.3390/cancers14215464] [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: 09/29/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 11/10/2022] Open
Abstract
Simple Summary Bowel resection is often required to obtain complete removal of ovarian cancer. A major complication of this operation is anastomotic leakage, which has been shown to increase morbidity and mortality in this population. Numerous original research studies have assessed the risk factors for anastomotic leaks. We aimed to conduct a systematic review and meta-analysis to identify statistically significant risk factors. This meta-analysis identified multiple bowel resections as the only significant risk factor. With further research to identify additional risk factors, new management guidelines could be implemented to minimize the risk of anastomotic leaks and improve patient outcomes. Abstract Introduction: Anastomotic leaks (AL) following ovarian cytoreduction surgery could be detrimental, leading to significant delays in commencing adjuvant chemotherapy, prolonged hospital stays and increased morbidity. The aim of this study was to investigate risk factors associated with anastomotic leaks after ovarian cytoreduction surgery. Material and methods: The MEDLINE (via PubMed), Cochrane Library, EMBASE and Scopus bibliographical databases were searched. Original clinical studies investigating risk factors for AL in ovarian cytoreduction surgery were included. Results: Eighteen studies with non-overlapping populations reporting on patients undergoing cytoreduction surgery for ovarian cancer (n = 4622, including 344 cases complicated by AL) were included in our analysis. Patients undergoing ovarian cytoreduction surgery complicated by AL had a significantly higher rate of 30-day mortality but no difference in 60-day mortality. Multiple bowel resections were associated with an increased risk of postoperative AL, while no association was observed with body mass index (BMI), American Society of Anesthesiologists (ASA) score, age, smoking, operative approach (primary versus interval cytoreductive, stapled versus hand-sewn anastomoses and formation of diverting stoma), neoadjuvant chemotherapy and use of hyperthermic intraperitoneal chemotherapy (HIPEC). Discussion: Multiple bowel resections were the only clinical risk factor associated with increased risk for AL after bowel surgery in the ovarian cancer population. The increased 30-day mortality rate in patients undergoing ovarian cytoreduction complicated by AL highlights the need to minimize the number of bowel resections in this population. Further studies are required to clarify any association between neoadjuvant chemotherapy and decreased AL rates.
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Affiliation(s)
| | - Georgios Geropoulos
- 2nd Propaedeutic Department of Surgery, Aristotle University School of Medicine, Hippokration General Hospital, 546 42 Thessaloniki, Greece
- Department of General and Upper GI Surgery, Victoria Hospital Kirkcaldy, Kirkcaldy KY2 5AH, UK
- Correspondence:
| | - Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK
| | - Kyriakos Psarras
- 2nd Propaedeutic Department of Surgery, Aristotle University School of Medicine, Hippokration General Hospital, 546 42 Thessaloniki, Greece
| | | | - Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | | | - Nikoletta A. Petrou
- Department of General Surgery, The Royal Marsden Hospital, London SW3 6JJ, UK
| | - James Lucocq
- Department of Hepaticopancreaticobiliary Surgery, University of Edinburgh, Edinburgh EH8 9YL, UK
| | | | - Dimitrios Giannis
- Department of Surgery, North Shore University Hospital/Long Island Jewish Medical Center, Northwell Health, Manhasset, NY 11030, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, USA
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Giannos P, Kechagias KS, Katsikas Triantafyllidis K, Falagas ME. Spotlight on Early COVID-19 Research Productivity: A 1-Year Bibliometric Analysis. Front Public Health 2022; 10:811885. [PMID: 35712290 PMCID: PMC9197383 DOI: 10.3389/fpubh.2022.811885] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/21/2022] [Indexed: 01/08/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19), one of the most serious public health crises in over a century, has led to an unprecedented surge of publications across all areas of knowledge. This study assessed the early research productivity on COVID-19 in terms of vaccination, diagnosis, treatment, symptoms, risk factors, nutrition, and economy. The Scopus database was searched between January 1, 2020 and December 31, 2020 to initially examine the research productivity on COVID-19, as measured by total publications by the 20 highest-ranked countries according to gross domestic product. The literature search was then refined, and research productivity was assessed across seven major research domains related to COVID-19: vaccination, diagnosis, treatment, symptoms, risk factors, nutrition, and economy. The initial literature search yielded 53,348 publications. Among these, 27,801 publications involved authorship from a single country and 22,119 publications involved authorship from multiple countries. Overall, the United States was the most productive country (n = 13,491), with one and a half times or more publications than any other country, on COVID-19 and the selected domains related to it. However, following adjustment for population size, gross domestic product, and expenditure for research and development, countries of emerging economies such as India along countries of lower population density such as Switzerland, Indonesia, and Turkey exhibited higher research productivity. The surge of COVID-19 publications in such a short period of time underlines the capacity of the scientific community to respond against a global health emergency; however where future research priorities and resource distribution should be placed on the respective thematic fields at an international level, warrants further investigation.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Konstantinos S Kechagias
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Dietetics, West Suffolk Hospital NHS Foundation Trust, Bury St Edmunds, United Kingdom
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Prokopidis K, Giannos P, Triantafyllidis KK, Kechagias K. 945 EFFECTIVENESS OF CREATINE SUPPLEMENTATION ON MEMORY IN HEALTHY INDIVIDUALS: A SYSTEMATIC REVIEW AND META-ANALYSIS. Age Ageing 2022. [DOI: 10.1093/ageing/afac126.011] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
The benefit of creatine monohydrate supplementation in improving memory performance in healthy humans is unclear. The aim of this study was to determine the effectiveness of creatine monohydrate supplementation on memory performance in healthy humans.
Method
A literature search of PubMed, Web of Science, Cochrane Library, and Scopus for randomized clinical trials (RCTs) published from database inception until September 30, 2021, examining the effects of creatine supplementation on measures of memory in healthy humans was conducted. The control groups consisted of placebo. The main outcome was performance measures of memory that were further examined according to age, sex, treatment duration, and dose of creatine monohydrate supplementation.
Results
Ten RCTs met the inclusion criteria and 8 were included in the meta-analysis. Overall, creatine supplementation improved memory compared to placebo (SMD: 0.29, 95% CI: 0.04–0.53, I2 = 66%, P = 0.02). Subgroup analyses revealed a significant improvement on memory in older adults (66–76 years) (SMD: 0.88, 95% CI: 0.22–1.55, I2 = 83%, P = 0.009). Creatine dose, duration of intervention, and sex did not influence the findings.
Conclusion
These data support that the use of creatine monohydrate supplementation enhances memory performance in healthy humans compared to placebo, especially in older adults. However, caution is warranted due to the combination of various assessment tools designed to measure memory, which would increase the heterogeneity of the data.
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Affiliation(s)
- K Prokopidis
- Department of Musculoskeletal Biology, University of Liverpool , UK
| | - P Giannos
- Department of Life Sciences, Imperial College London , UK
| | - K K Triantafyllidis
- Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust , Taunton, UK
| | - K Kechagias
- Department of Metabolism , Digestion and Reproduction, , UK
- Imperial College London , Digestion and Reproduction, , UK
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10
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Prokopidis K, Giannos P, Katsikas Triantafyllidis K, Kechagias KS, Mesinovic J, Witard OC, Scott D. Effect of vitamin D monotherapy on indices of sarcopenia in community-dwelling older adults: a systematic review and meta-analysis. J Cachexia Sarcopenia Muscle 2022; 13:1642-1652. [PMID: 35261183 PMCID: PMC9178168 DOI: 10.1002/jcsm.12976] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/24/2022] [Accepted: 02/21/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Vitamin D supplementation is proposed as a potentially effective nutritional intervention to mitigate the risk of sarcopenia. The aim of this systematic review and meta-analysis was to investigate the impact of vitamin D supplementation monotherapy on indices of sarcopenia in community-dwelling older adults. METHODS A comprehensive search of the literature was conducted in PubMed, Web of Science, Scopus, and Cochrane Library. Eligible randomized controlled trials (RCTs) compared the effect of vitamin D supplementation (as monotherapy) with placebo on indices of sarcopenia in older (>50 years) adults. Using the random effects inverse-variance model, we calculated the mean difference (MD) in handgrip strength (HGS), short physical performance battery (SPPB), timed up and go (TUG), and appendicular lean mass (ALM) between groups. We also calculated the standardized mean difference (SMD) in general muscle strength and general physical performance (composite plot of all muscle strength and physical performance outcomes, respectively) between groups. RESULTS Ten RCTs were included in the meta-analysis. A significant decrease in SPPB scores was observed with vitamin D supplementation compared with placebo (MD: -0.23; 95% CI -0.40 to -0.06; I2 = 0%; P = 0.007). Vitamin D supplementation conferred no effect on HGS (MD: -0.07 kg; 95% CI -0.70 to 0.55; I2 = 51%, P = 0.82), TUG (MD: 0.07 s; 95% CI -0.08 to 0.22; I2 = 0%, P = 0.35), ALM (MD: 0.06 kg/m2 ; 95% CI: -0.32 to 0.44; I2 = 73%, P = 0.77), general muscle strength (SMD: -0.01; 95% CI -0.17 to 0.15; I2 = 42%, P = 0.90), or general physical performance (SMD: -0.02; 95% CI -0.23 to 0.18; I2 = 71%, P = 0.83). CONCLUSIONS Vitamin D supplementation did not improve any sarcopenia indices in community-dwelling older adults and may compromise some aspects of physical performance. Future studies are warranted to investigate the impact of vitamin D supplementation on individual indices of SPPB, including mobility and balance, in older adults.
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Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.,Society of Meta-research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Jakub Mesinovic
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
| | - Oliver C Witard
- Centre for Human and Applied Physiological Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - David Scott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
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11
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Giannos P, Triantafyllidis KK, Giannos G, Kechagias KS. SPP1 in infliximab resistant ulcerative colitis and associated colorectal cancer: an analysis of differentially expressed genes. Eur J Gastroenterol Hepatol 2022; 34:598-606. [PMID: 35102110 DOI: 10.1097/meg.0000000000002349] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Infliximab, a tumour necrosis factor-α (TNFα) antagonist, has advanced the management of ulcerative colitis. Although efficacious, considerable percentage of patients are resistant to treatment. Accumulative inflammatory burden in long-term ulcerative colitis patients refractory to therapy increases the risk of developing colorectal cancer (CRC). Our study investigated anti-TNFα-naïve patients with active ulcerative colitis to identify gene biomarkers whose dysregulated expression correlated with resistance to infliximab (IFX) treatment and poor prognosis in CRC. METHODS Differentially expressed genes (DEGs) from two studies (GSE73661 and GSE14580) with colonic mucosal samples were retrieved. Noninflammatory bowel disease controls were compared with those with active ulcerative colitis that either responded or were resistant to IFX before treatment. DEGs from ulcerative colitis samples resistant to IFX were used to construct a protein-protein interaction network, and clustering gene modules were identified. Module DEGs that overlapped with ulcerative colitis samples responsive to IFX were analysed, based on topological closeness and radiality. Hub genes were obtained, and their correlation with CRC progression was evaluated. Their expression in CRC tissues and their tumour microenvironment immune status was estimated. RESULTS Three clusters composed of 582 DEGs from ulcerative colitis samples resistant to IFX were retrieved. Comparative analysis identified 305 overlapping DEGs with ulcerative colitis samples responsive to IFX. Topological analysis revealed a hub gene - SPP1 - whose overexpression in CRC tissues and patients correlated with increased infiltration of immune signatures and poor prognosis. CONCLUSION SPP1 may serve as potential gene biomarker and predictor of resistance to IFX therapy in ulcerative colitis and CRC development.
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Affiliation(s)
- Panagiotis Giannos
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London
- Society of Meta-research and Biomedical Innovation, London
| | | | - Georgios Giannos
- Second Department of Surgery, Evaggelismos Hospital, Athens
- Department of Medicine, University of Crete Medical School, Heraklion, Crete, Greece
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London
- Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital National Health Service (NHS) Foundation Trust, London, UK
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12
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Delardas O, Kechagias KS, Katsikas Triantafyllidis K, Giannos P. Concerns about academic freedom caused by the Russia–Ukraine War. EMBO Rep 2022; 23:e55079. [PMID: 35403795 PMCID: PMC9066049 DOI: 10.15252/embr.202255079] [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: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/09/2022] Open
Abstract
Russia's war against Ukraine has raised concerns not about the fate of Ukrainian science and scientists but also academic freedom and international cooperation in science.
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Affiliation(s)
| | - Konstantinos S Kechagias
- Society of Meta‐research and Biomedical Innovation London UK
- Department of Metabolism, Digestion and Reproduction Faculty of Medicine Imperial College London London UK
- Department of Obstetrics and Gynaecology Chelsea and Westminster NHS Foundation Trust London UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta‐research and Biomedical Innovation London UK
- Department of Nutrition & Dietetics Musgrove Park Hospital Taunton & Somerset NHS Foundation Trust Taunton UK
| | - Panagiotis Giannos
- Society of Meta‐research and Biomedical Innovation London UK
- Department of Life Sciences Faculty of Natural Sciences Imperial College London London UK
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13
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Giannos P, Katsikas Triantafyllidis K, Geropoulos G, Kechagias KS. Persistent Hiccups as an Atypical Presentation of SARS-CoV-2 Infection: A Systematic Review of Case Reports. Front Neurol 2022; 13:819624. [PMID: 35444608 PMCID: PMC9014175 DOI: 10.3389/fneur.2022.819624] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/15/2022] [Indexed: 01/08/2023] Open
Abstract
Symptoms, such as fever, dry cough, dyspnoea, and respiratory distress, are commonly described in patients infected with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). Recently, a growing number of cases pertained to persistent hiccups have been reported by SARS-CoV-2 infected patients. The aim of this systematic review was to screen the current literature and provide a summary of the reported cases of SARS-CoV-2 infected patients presenting with persistent hiccups. According to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, PubMed, Scopus, and Web of Science databases were searched from inception until October 2021. Case reports or case series that provided a separate clinical description for patients with presenting complaints of persistent hiccups before or after COVID-19 diagnosis were retrieved. The critical appraisal checklist for case reports provided by the Joanna Briggs Institute (JBI) was employed to evaluate the overall quality of the eligible studies. We identified 13 eligible studies that included 16 hospitalized COVID-19 patients who complained of persistent hiccups. The mean duration of hiccups was 4.6 days reported in 88% (14/16) patients. Hypertension was the most common comorbidity present in 50% (8/16) of patients followed by diabetes mellitus (4/16). Moreover, 44% (7/16) of patients received only one medication for managing the hiccups with metoclopramide (5/16) followed by chlorpromazine and baclofen (4/16) used as primary treatment. Equally, 44% of patients (7/16) received dexamethasone followed by azithromycin (5/16), ivermectin (4/16), and ceftriaxone (4/16) for managing the infection from SARS-CoV-2. The majority of patients (14/16) improved after initiation of treatment. Persistent hiccups are possibly a rare symptom that clinicians may expect to encounter in patients infected with SARS-CoV-2. Although there is not ample proof to propose causation, increased awareness about the diversity of presentations of SARS-CoV-2 infection could be crucial in the early recognition of the disease.
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Affiliation(s)
- Panagiotis Giannos
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom.,Society of Meta-Research and Biomedical Innovation, London, United Kingdom
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Nutrition and Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, United Kingdom
| | - Georgios Geropoulos
- Department of General Surgery, University College London Hospitals, NHS Foundation Trust, London, United Kingdom
| | - Konstantinos S Kechagias
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom.,Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital NHS Foundation Trust, London, United Kingdom
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14
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Triantafyllidis KK, Giannos P, Stathi D, Kechagias KS. Graves' disease following vaccination against SARS-CoV-2: A systematic review of the reported cases. Front Endocrinol (Lausanne) 2022; 13:938001. [PMID: 36237182 PMCID: PMC9552880 DOI: 10.3389/fendo.2022.938001] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/23/2022] [Indexed: 01/08/2023] Open
Abstract
The newly developed COVID-19 vaccines have established a safe profile, yet some individuals experience a wide range of adverse events. Recently, thyroid dysfunction, including Graves' disease, has been observed after administration of different COVID-19 vaccines, although causality remains a matter of debate. The aim of this systematic review was to examine the available literature and provide an overview of reported cases of Graves' disease following COVID-19 vaccination. We identified 21 eligible articles which included 57 patients with Graves' disease following COVID-19 vaccination. Fourteen participants were males (25%, 14/57) and 43 (75%, 44/57) were females with a mean age of 44.3 years. The most common presenting symptom was palpitations (63%, 27/43) followed by weight loss (35%, 15/43). The majority of patients received thionamides (47%, 25/53). The clinical status after treatment was provided for 37 patients and it was improved in the majority of them (84%, 31/37). Graves' disease is possibly a condition clinicians may expect to encounter in patients receiving COVID-19 vaccines. While the above adverse event is rare, considering the scarcity of available data in scientific literature, and causality is not yet confirmed, the increased awareness of clinicians and the early recognition of the disorder are important for the optimal management of these patients.
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Affiliation(s)
- Konstantinos Katsikas Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Nutrition and Dietetics, Homerton University Hospital Foundation Trust, London, United Kingdom
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Dimitra Stathi
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Endocrinology and Diabetes, Guy’s and St Thomas’ National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Konstantinos S. Kechagias
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
- *Correspondence: Konstantinos S. Kechagias,
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Kechagias KS, Katsikas Triantafyllidis K, Kyriakidou M, Giannos P, Kalliala I, Veroniki AA, Paraskevaidi M, Kyrgiou M. The Relation between Caffeine Consumption and Endometriosis: An Updated Systematic Review and Meta-Analysis. Nutrients 2021; 13:nu13103457. [PMID: 34684458 PMCID: PMC8538723 DOI: 10.3390/nu13103457] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/19/2021] [Accepted: 09/26/2021] [Indexed: 11/16/2022] Open
Abstract
While the contributing factors leading to endometriosis remain unclear, its clinical heterogeneity suggests a multifactorial causal background. Amongst others, caffeine has been studied extensively during the last decade as a putative contributing factor. In this systematic review and meta-analysis, we provide an overview/critical appraisal of studies that report on the association between caffeine consumption and the presence of endometriosis. In our search strategy, we screened PubMed and Scopus for human studies examining the above association. The main outcome was the relative risk of endometriosis in caffeine users versus women consuming little or no caffeine (<100 mg/day). Subgroup analyses were conducted for different levels of caffeine intake: high (>300 mg/day) or moderate (100–300 mg/day). Ten studies were included in the meta-analysis (five cohort and five case-control studies). No statistically significant association was observed between overall caffeine consumption and risk for endometriosis (RR 1.12, 95% confidence interval (CI) 0.97–1.28, I2 = 70%) when compared to little or no (<100 mg/day) caffeine intake. When stratified according to level of consumption, high intake was associated with increased risk of endometriosis (RR 1.30, 95%CI 1.04–1.63, I2 = 56%), whereas moderate intake did not reach nominal statistical significance (RR 1.18, 95%CI 0.99–1.40, I2 = 37%). In conclusion, caffeine consumption does not appear to be associated with increased risk for endometriosis. However, further research is needed to elucidate the potential dose-dependent link between caffeine and endometriosis or the probable role of caffeine intake as a measurement of other unidentified biases.
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Affiliation(s)
- Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- Correspondence: ; Tel.: +44-7590803194
| | - Konstantinos Katsikas Triantafyllidis
- Department of Dietetics, West Suffolk Hospital NHS Foundation Trust, Bury St Edmunds, Bury Saint Edmunds IP33 2QZ, UK;
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
| | - Margarita Kyriakidou
- Department of Applied Mathematical and Physical Sciences, National Technical University of Athens, 15773 Athens, Greece;
| | - Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Ilkka Kalliala
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- Department of Obstetrics and Gynaecology, Helsinki University and University Hospital Helsinki, 00014 Helsinki, Finland
| | - Areti Angeliki Veroniki
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- Knowledge Translation Program, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- West London Gynaecological Cancer Centre, Imperial College NHS Trust, London W12 0HS, UK
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Katsikas Triantafyllidis K, Giannos P, Mian IT, Kyrtsonis G, Kechagias KS. Varicella Zoster Virus Reactivation Following COVID-19 Vaccination: A Systematic Review of Case Reports. Vaccines (Basel) 2021; 9:vaccines9091013. [PMID: 34579250 PMCID: PMC8471236 DOI: 10.3390/vaccines9091013] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [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: 08/03/2021] [Revised: 09/02/2021] [Accepted: 09/05/2021] [Indexed: 01/12/2023] Open
Abstract
The newly developed COVID-19 vaccines have established a safe profile, yet some individuals experience a wide range of adverse events. Recently, reactivation of varicella zoster virus (VZV) has been observed after administration of different COVID-19 vaccines, although causality remains a matter of debate. The aim of this systematic review was to examine the available literature and provide an overview of reported cases of VZV reactivation following COVID-19 vaccination. We identified 12 eligible articles which included 91 patients with herpes zoster (HZ) following COVID-19 vaccination. Hypertension was the main comorbidity present in 18% of patients (16/91). Additionally, 13% of patients (12/91) had an autoimmune condition with rheumatoid arthritis being the most common (4/12). Moreover, 10% of patients (9/91) were receiving immunosuppressants. The dermatomal distribution of skin lesions varied among patients, with the mammary region being most affected. On average, symptoms developed 5.8 days post-vaccination irrespective of dose and treatment with oral valacyclovir as a monotherapy was employed in most patients (23/91). HZ is possibly a condition clinicians may expect to encounter in patients receiving COVID-19 vaccines. While causality has not yet been established increased awareness and early recognition of the disorder would be crucial for the optimal management of these patients.
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Affiliation(s)
- Konstantinos Katsikas Triantafyllidis
- Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton TA1 5DA, UK;
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
| | - Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | | | - George Kyrtsonis
- Department of General Surgery, Croydon University Hospital, Croydon, London CR7 7YE, UK;
| | - Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK
- Correspondence: ; Tel.: +44-7590803194
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