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Othman HY, Zaki IAH, Isa MR, Ming LC, Zulkifly HH. A systematic review of thromboembolic complications and outcomes in hospitalised COVID-19 patients. BMC Infect Dis 2024; 24:484. [PMID: 38730292 PMCID: PMC11088167 DOI: 10.1186/s12879-024-09374-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 05/03/2024] [Indexed: 05/12/2024] Open
Abstract
Thromboembolic (TE) complications [myocardial infarction (MI), stroke, deep vein thrombosis (DVT), and pulmonary embolism (PE)] are common causes of mortality in hospitalised COVID-19 patients. Therefore, this review was undertaken to explore the incidence of TE complications and mortality associated with TE complications in hospitalised COVID-19 patients from different studies. A literature search was performed using ScienceDirect and PubMed databases using the MeSH term search strategy of "COVID-19", "thromboembolic complication", "venous thromboembolism", "arterial thromboembolism", "deep vein thrombosis", "pulmonary embolism", "myocardial infarction", "stroke", and "mortality". There were 33 studies included in this review. Studies have revealed that COVID-19 patients tend to develop venous thromboembolism (PE:1.0-40.0% and DVT:0.4-84%) compared to arterial thromboembolism (stroke:0.5-15.2% and MI:0.8-8.7%). Lastly, the all-cause mortality of COVID-19 patients ranged from 4.8 to 63%, whereas the incidence of mortality associated with TE complications was between 5% and 48%. A wide range of incidences of TE complications and mortality associated with TE complications can be seen among hospitalized COVID-19 patients. Therefore, every patient should be assessed for the risk of thromboembolic complications and provided with an appropriate thromboprophylaxis management plan tailored to their individual needs.
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Affiliation(s)
- Hanies Yuhana Othman
- Department of Clinical Pharmacy, Fakulti Farmasi, Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor, Malaysia
| | - Izzati Abdul Halim Zaki
- Department of Clinical Pharmacy, Fakulti Farmasi, Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor, Malaysia
- Cardiology Therapeutics Research Group, Universiti Teknologi MARA, Puncak Alam, Selangor, Malaysia
| | - Mohamad Rodi Isa
- Faculty of Medicine, Universiti Teknologi MARA Selangor, Sungai Buloh Campus, Sungai Buloh, Selangor, Malaysia
| | - Long Chiau Ming
- School of Medical and Life Sciences, Sunway University, Sunway City, Selangor, Malaysia
| | - Hanis Hanum Zulkifly
- Department of Clinical Pharmacy, Fakulti Farmasi, Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor, Malaysia.
- Cardiology Therapeutics Research Group, Universiti Teknologi MARA, Puncak Alam, Selangor, Malaysia.
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2
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Liu H, Guo N, Zheng Q, Zhang Q, Chen J, Cai Y, Luo Q, Xu Q, Chen X, Yang S, Zhang S. Association of interleukin-6, ferritin, and lactate dehydrogenase with venous thromboembolism in COVID-19: a systematic review and meta-analysis. BMC Infect Dis 2024; 24:324. [PMID: 38493138 PMCID: PMC10943892 DOI: 10.1186/s12879-024-09205-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/07/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is frequntly accompanied by venous thromboembolism (VTE), and its mechanism may be related to the abnormal inflammation and immune status of COVID-19 patients. It has been proved that interleukin-6 (IL-6), ferritin and lactate dehydrogenase (LDH) may play an important role in the occurrence of VTE in COVID-19 infection. But whether they can server as predictors for VTE in COVID-19 is still unclear. In this study, we performed a systematic review and meta-analysis to compare IL-6, ferritin and LDH in VTE and non-VTE COVID-19 patients in order to shed light on the prevention and treatment of VTE. METHODS Related literatures were searched in PubMed, Embase, Web of Science, Google Scholar, China National Knowledge Infrastructure (CNKI), WANGFANG. COVID-19 patients were divided into VTE group and non-VTE group. Meta-analysis was then conducted to compare levels of IL-6, ferritin and LDH between the two groups. RESULTS We finally included and analyzed 17 literatures from January 2019 to October 2022. There was a total of 7,035 COVID-19 patients, with a weighted mean age of 60.01 years. Males accounted for 62.64% and 61.34% patients were in intensive care unit (ICU). Weighted mean difference (WMD) of IL-6, ferritin and LDH was 31.15 (95% CI: 9.82, 52.49), 257.02 (95% CI: 51.70, 462.33) and 41.79 (95% CI: -19.38, 102.96), respectively. The above results indicated that than compared with non-VTE group, VTE group had significantly higher levels of IL-6 and ferritin but similar LDH. CONCLUSION This systematic review and meta-analysis pointed out that elevated levels of IL-6 and ferritin were significantly possitive associated with VTE, thus could be used as biological predictive indicators of VTE among COVID-19 patients. However, no association was found between level of LDH and VTE. Therefore, close monitoring of changes in IL-6 and ferritin concentrations is of great value in assisting clinicans to rapidly identify thrombotic complications among COVID-19 patients, hence facilitating the timely effective managment. Further studies are required in terms of the clinical role of cytokines in the occurrence of VTE among COVID-19 infection, with more reliable systematic controls and interventional trials.
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Affiliation(s)
- Haiyu Liu
- Department of Pulmonary and Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Ningjing Guo
- Department of Oncology Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Qixian Zheng
- Department of Pulmonary and Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Qianyuan Zhang
- Department of General Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Jinghan Chen
- Department of Oncology Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Yuanyuan Cai
- Department of General Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Qiong Luo
- Department of Oncology Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Qian Xu
- Department of Oncology Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China
| | - Xiangqi Chen
- Department of Pulmonary and Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China.
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, Fuzhou, Fujian, 350001, P.R. China.
| | - Sheng Yang
- Department of Oncology Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China.
- Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, Fuzhou, Fujian, 350001, P.R. China.
| | - Suyun Zhang
- Department of Internal Medicine, Fujian Medical University Union Hospital, Fuzhou, Fujian, 350001, P.R. China.
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3
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Kawame C, Kasai H, Shiohira S, Sugiura T, Shiko Y, Sakao S, Suzuki T. Role of Fibrin Monomer Complex in Coronavirus Disease 2019 for Venous Thromboembolism and the Prognosis. Intern Med 2023; 62:2941-2948. [PMID: 37532551 PMCID: PMC10641197 DOI: 10.2169/internalmedicine.1322-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/24/2023] [Indexed: 08/04/2023] Open
Abstract
Objective Venous thromboembolism (VTE) is a common complication of severe coronavirus disease 2019 (COVID-19) and is associated with its prognosis. The fibrin monomer complex (FMC), a marker of thrombin generation, is reportedly useful in diagnosing acute thrombosis. To date, there has been only one report on FMC in COVID-19, and the usefulness of FMC in COVID-19 is unknown. We therefore evaluated the frequency of VTE in non-intensive-care unit COVID-19 patients in Japan and determine the clinical utility of FMC in COVID-19. Methods This was a single-center retrospective study. Laboratory test results and outcomes (thrombosis and severe progression of COVID-19) were obtained via medical record review. We assessed the relationship between FMC and VTE incidence and evaluated the association between elevated FMC levels and severe progression of COVID-19. Patients This study included 247 patients with COVID-19 who were hospitalized between December 2020 and September 2021 and had had their levels of D-dimer and FMC measured. Results Of the 247 included patients, 3 (1.2%) developed VTE. All three had elevated FMC levels on admission; however, the D-dimer level was not elevated in one case on admission. The FMC level was significantly higher in the group with severe COVID-19 progression than in the group without severe progression. A multivariate analysis showed that severe progression was associated with elevated FMC levels (odds ratio, 7.40; 95% confidence interval, 2.63-22.98; p<0.001). Conclusion FMC can be useful for diagnosing VTE in the acute phase of COVID-19. Elevated FMC was found to be associated with severity on admission and severe progression.
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Affiliation(s)
- Chiaki Kawame
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Hajime Kasai
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Shunya Shiohira
- Department of Medicine, School of Medicine, Chiba University, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Yuki Shiko
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Takuji Suzuki
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
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Bhoelan S, Codreanu C, Tichelaar V, Borjas Howard J, Meijer K. Exploring heterogeneity in reported venous thromboembolism risk in COVID-19 and comparison to other viral pneumonias: a systematic review and meta-regression. Res Pract Thromb Haemost 2023; 7:102146. [PMID: 37663366 PMCID: PMC10470259 DOI: 10.1016/j.rpth.2023.102146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/18/2023] [Accepted: 06/24/2023] [Indexed: 09/05/2023] Open
Abstract
Background Sources of heterogeneity in venous thromboembolism (VTE) risk in COVID-19 are unclear and comparisons to other viruses are lacking. Objectives To describe VTE risk in patients with COVID-19, explore sources of heterogeneity, and make comparisons with other viral pneumonia. Methods PubMed and Embase data were searched on March 14, 2021, for studies on VTE in adults hospitalized with viral pneumonia. VTE risk estimates were pooled in a random effects meta-analysis stratified by virus type. Heterogeneity in COVID-19 was explored in multivariable meta-regression. Results Seventy studies in COVID-19 (intensive care [ICU] [47] vs ward [23]), 4 studies in seasonal influenza (ICU [3] vs ward [1]), 2 ICU studies in H1N1 and 1 ICU study in SARS-CoV-1 were included. For COVID-19 ICU, pooled VTE risk was 19.6% (95% confidence interval [CI], 16.2%-23.5; I2 = 92.8%) for nonscreening studies and 30.0% (95% CI, 17.9%-45.7%; I2 = 81.9%) for screening studies. For COVID-19 ward, pooled VTE risk was 3.4% (95% CI, 2.4%-4.7%; I2 = 91.3%) and 22.5% (95% CI, 10.2%-42.7%; I2 = 91.6%) for nonscreening and screening studies, respectively. Higher sample size was associated with lower VTE risk. Pooled VTE risk in seasonal influenza and H1N1 at ICU were 9.0% (95% CI, 5.6%-14.2%; I2 = 39.7%) and 29.2% (95% CI, 8.7%-64.2%; I2 = 77.9%), respectively. At ward, VTE risk of seasonal influenza was 2.4% (95% CI, 2.1%-2.7%). In SARS-CoV-1, VTE risk was 47.8% (95% CI, 34.0-62.0). Conclusion Pooled risk estimates in COVID-19 should be interpreted cautiously as a high degree of heterogeneity is present, which hinders comparison to other viral pneumonia. The association of VTE risk in COVID-19 to sample size suggests publication bias.
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Affiliation(s)
- Soerajja Bhoelan
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Catalina Codreanu
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Vladimir Tichelaar
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Jaime Borjas Howard
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Karina Meijer
- Department of Haematology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
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5
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Hayashi H, Izumiya Y, Fukuda D, Wakita F, Mizobata Y, Fujii H, Yachi S, Takeyama M, Nishimoto Y, Tsujino I, Nakamura J, Yamamoto N, Nakata H, Ikeda S, Umetsu M, Aikawa S, Satokawa H, Okuno Y, Iwata E, Ogihara Y, Ikeda N, Kondo A, Iwai T, Yamada N, Ogawa T, Kobayashi T, Mo M, Yamashita Y. Real-World Management of Pharmacological Thromboprophylactic Strategies for COVID-19 Patients in Japan: From the CLOT-COVID Study. JACC. ASIA 2022; 2:897-907. [PMID: 36536621 PMCID: PMC9753959 DOI: 10.1016/j.jacasi.2022.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 12/23/2022]
Abstract
Background Data on prophylactic anticoagulation are important in understanding the current issues, unmet needs, and optimal management of Japanese COVID-19 patients. Objectives This study aimed to investigate the clinical management strategies for prophylactic anticoagulation of COVID-19 patients in Japan. Methods The CLOT-COVID study was a multicenter observational study that enrolled 2,894 consecutive hospitalized patients with COVID-19. The study population consisted of 2,889 patients (after excluding 5 patients with missing data); it was divided into 2 groups: patients with pharmacological thromboprophylaxis (n = 1,240) and those without (n = 1,649). Furthermore, we evaluated the 1,233 patients who received prophylactic anticoagulation-excluding 7 patients who could not be classified based on the intensity of their anticoagulants-who were then divided into 2 groups: patients receiving prophylactic anticoagulant doses (n = 889) and therapeutic anticoagulant doses (n = 344). Results The most common pharmacological thromboprophylaxis anticoagulant was unfractionated heparin (68.2%). The severity of COVID-19 at admission was a predictor of the implementation of pharmacological thromboprophylaxis in the multivariable analysis (moderate vs mild: OR: 16.6; 95% CI:13.2-21.0; P < 0.001, severe vs mild: OR: 342.6, 95% CI: 107.7-1090.2; P < 0.001). It was also a predictor of the usage of anticoagulants of therapeutic doses in the multivariable analysis (moderate vs mild: OR: 2.10; 95% CI: 1.46-3.02; P < 0.001, severe vs mild: OR: 5.96; 95% CI: 3.91-9.09; P < 0.001). Conclusions In the current real-world Japanese registry, pharmacological thromboprophylaxis, especially anticoagulants at therapeutic doses, was selectively implemented in COVID-19 patients with comorbidities and severe COVID-19 status at admission.
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Affiliation(s)
- Hiroya Hayashi
- Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan,Address for correspondence: Dr Hiroya Hayashi, Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka 545-8585, Japan
| | - Yasuhiro Izumiya
- Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Daiju Fukuda
- Department of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Fumiaki Wakita
- Department of Traumatology and Critical Care Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yasumitsu Mizobata
- Department of Traumatology and Critical Care Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hiromichi Fujii
- Department of Intensive Care Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Sen Yachi
- Japan Community Health Care Organization Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - Makoto Takeyama
- Japan Community Health Care Organization Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - Yuji Nishimoto
- Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | | | | | | | | | - Satoshi Ikeda
- Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | | | | | | | | | - Eriko Iwata
- Nankai Medical Center Japan Community Health Care Organization, Saiki, Japan
| | | | | | - Akane Kondo
- Shikoku Medical Center for Children and Adults, Zentsuji, Japan
| | | | | | | | | | - Makoto Mo
- Yokohama Minami Kyosai Hospital, Yokohama, Japan
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Sato L, Ishikane M, Okumura N, Iwamoto N, Hayakawa K, Iseki K, Hara H, Ohmagari N. A novel anticoagulation treatment protocol using unfractionated heparin for coronavirus disease 2019 patients in Japan, 2022. Glob Health Med 2022; 4:233-236. [PMID: 36119785 PMCID: PMC9420327 DOI: 10.35772/ghm.2022.01030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/30/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Hypercoagulability, which can be induced by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) plays an important role in the pathogenesis of coronavirus disease 2019 (COVID-19). Although anticoagulation therapy is expected to decrease the incidence of thrombosis and mortality in COVID-19 patients, the optimal use of anticoagulation therapy has not been established, especially using unfractionated heparin (UFH). Herein, we suggest a new anticoagulation treatment protocol for the use of UFH in Japanese COVID-19 patients. This protocol considers the safety regarding UFH usage, to lower major bleeding events, and reflects the latest evidence and the current situation regarding anticoagulation therapy in Japan.
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Affiliation(s)
- Lubna Sato
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
- Department of Emergency and Critical Care Medicine, Fukushima Medical University, Fukushima, Japan
| | - Masahiro Ishikane
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Nobumasa Okumura
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Noriko Iwamoto
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kayoko Hayakawa
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Ken Iseki
- Department of Emergency and Critical Care Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hisao Hara
- Department of Cardiology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Norio Ohmagari
- Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
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Komagamine J, Yabuki T. Incidence of thromboembolic complications in hospitalized COVID-19 patients in a medical ward in Japan: A single-center retrospective and prospective observational study. Medicine (Baltimore) 2022; 101:e29933. [PMID: 35984153 PMCID: PMC9387656 DOI: 10.1097/md.0000000000029933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND A high incidence of thromboembolic complications is one of the hallmarks of COVID-19. However, there may be a difference in the incidence of thromboembolic complications between Asian and Western people. In addition, few prospective studies have been conducted to determine the incidence of thromboembolic complications in hospitalized COVID-19 patients in medical wards in Japan. METHODS A single-center retrospective and prospective cohort study was conducted to determine the incidence of thromboembolic complications in symptomatic COVID-19 patients in a medical ward in a Japanese hospital. All 1116 consecutive COVID-19 patients who were admitted to our hospital from November 1, 2020, to October 26, 2021, were included. The primary outcome was any thromboembolic complications, which included venous thromboembolism, myocardial infarction, ischemic stroke, and other arterial embolisms. RESULTS The median patient age was 50 (IQR, 37-61), 402 (36.0%) were women, 1005 (90.1%) were Japanese, the median body mass index was 24.1 (IQR, 21.6-27.2), and 43 (3.9%) had Padua scores of at least 4 points at admission. Regarding the severity of COVID-19, 543 (48.7%), 315 (28.2%), 204 (18.3%), and 54 (4.8%) patients had mild, moderate, severe, and critical COVID-19, respectively. Nine patients (0.8%) died, and 47 patients (4.2%) were transferred to other hospitals for intensive care. The primary outcome occurred in only 5 patients (0.5%; 95% CI, 0.1-0.8) and consisted of 3 ischemic strokes, 2 limb ischemia events, and one asymptomatic pulmonary embolism. Even in the 204 patients with severe COVID-19, the prevalence of thromboembolic complications was only 2.5% (95% CI, 0.3-4.6). CONCLUSION Thromboembolic complications of COVID-19 are rare even in severe cases in a medical ward in a Japanese hospital. Further studies are needed to identify severe COVID-19 patients with a higher risk for thromboembolic complications in Japan.
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Affiliation(s)
- Junpei Komagamine
- Department of Internal Medicine, National Hospital Organization Tochigi Medical Center, Tochigi, Japan
- * Correspondence: Junpei Komagamine, Department of Internal Medicine, National Hospital Organization Tochigi Medical Center, 1-10-37, Nakatomatsuri, Utsunomiya, Tochigi, Japan (e-mail: )
| | - Taku Yabuki
- Department of Internal Medicine, National Hospital Organization Tochigi Medical Center, Tochigi, Japan
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Singh B, Dhooria HP, Mohan B, Goyal A, Singh G, Singh P, Goyal M, Luthra S, Chhabra ST, Tandon R, Aslam N, Wander GS. The incidence and clinical impact of thrombotic events in hospitalised Coronavirus disease 2019 illness. INT ANGIOL 2022; 41:356-363. [PMID: 35373940 DOI: 10.23736/s0392-9590.22.04845-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Coronavirus disease-2019(COVID-19) infection and thrombosis are of great clinical importance as this association has shown to increase mortality. We intend to estimate the incidence of thrombotic events(TE) and their impact on clinical outcomes in hospitalised COVID-19 patients. METHODS This was an analytical cross-sectional study. The study population comprised of hospitalised COVID-19 patients between 1st March 2021 and 31st May 2021. The clinico-demographic data, thrombotic events, and clinical outcomes were collected from electronic health records. RESULTS A total of 1274 patients were analysed. The median age of the study population was 56 years (IQR:44-66 years). The estimated incidence of TE was 5.8%(n=74); 60.8% of these TE occurred in patients having severe/critical COVID-19 illness and 70.3% of TE occurred in patients in the intensive care unit. Venous events(3.9%) were common compared to arterial events(1.9%). On multivariate logistic regression analysis, total leukocyte count, C-reactive protein, and D-dimer level were found to be the independent predictors of having TE. Receiver operator curve revealed a cut-off point of 872.5 DDU μg/L for D-dimer level (sensitivity:67.6% and specificity:72.1%; p<0.001, area under curve=0.78) for predicting TE. Patients with TE had significantly higher mortality compared to those without TE (58.1% vs 22.2%; p<0.001); and the presence of TE (OR=2.94; 95% CI:1.7-5.1, p<0.001) was found to be the independent predictor of mortality. CONCLUSIONS The incidence of TE is high for hospitalised COVID-19 patients and it is even higher in severe/critical COVID illness. Its presence has shown to double the mortality compared to those without it.
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Affiliation(s)
- Bhupinder Singh
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India -
| | - Harmeet P Dhooria
- Department of Medicine, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Bishav Mohan
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Abhishek Goyal
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Gurbhej Singh
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Parampratap Singh
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Mayur Goyal
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Suraj Luthra
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Shibba T Chhabra
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Rohit Tandon
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Naved Aslam
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
| | - Gurpreet S Wander
- Department of Cardiology, Dayanand Medical College and Hospital, Tagore Nagar, India
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9
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Nishimoto Y, Yachi S, Takeyama M, Tsujino I, Nakamura J, Yamamoto N, Nakata H, Ikeda S, Umetsu M, Aikawa S, Hayashi H, Satokawa H, Okuno Y, Iwata E, Ogihara Y, Ikeda N, Kondo A, Iwai T, Yamada N, Ogawa T, Kobayashi T, Mo M, Yamashita Y. The current status of thrombosis and anticoagulation therapy in patients with COVID-19 in Japan: From the CLOT-COVID study. J Cardiol 2022; 80:285-291. [PMID: 35430141 PMCID: PMC8979768 DOI: 10.1016/j.jjcc.2022.03.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/15/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023]
Abstract
Background Data on thrombosis and current real-world management strategies for anticoagulation therapy are scarce but important for understanding current issues and unmet needs of an optimal management of patients with coronavirus disease 2019 (COVID-19). Method The CLOT-COVID Study (thrombosis and antiCoaguLatiOn Therapy in patients with COVID-19 in Japan Study: UMIN000045800) was a retrospective, multicenter cohort study enrolling consecutive hospitalized patients with COVID-19 among 16 centers in Japan from April 2021 to September 2021, and we tried to capture the status of the patients in the fourth and fifth waves of the COVID-19 infections in Japan. We enrolled consecutive hospitalized patients who were diagnosed with COVID-19 and had a positive polymerase chain reaction test obtained from the hospital databases. Results Among 2894 patients with COVID-19, 1245 (43%) received pharmacological thromboprophylaxis. The proportion of pharmacological thromboprophylaxis increased according to the severity of the COVID-19 in 9.8% with mild COVID-19, 61% with moderate COVID-19, and 97% with severe COVID-19. The types and doses of anticoagulants varied widely across the participating centers. During the hospitalization, 38 patients (1.3%) and 126 (4.4%) underwent ultrasound examinations for the lower extremities and contrast-enhanced computed tomography examinations, respectively, and 55 (1.9%) developed thrombosis, mostly venous thromboembolism (71%). The incidence of thrombosis increased according to the severity of the COVID-19 in 0.2% with mild COVID-19, 1.4% with moderate COVID-19, and 9.5% with severe COVID-19. Major bleeding occurred in 57 patients (2.0%) and 158 (5.5%) died, and 81% of them were due to respiratory failure from COVID-19 pneumonia. Conclusions In the present large-scale observational study, pharmacological thromboprophylaxis for hospitalized patients with COVID-19 was common especially in patients with severe COVID-19, and management strategies varied widely across the participating centers. The overall incidence of thrombosis was substantially low with an increased incidence according to the severity of the COVID-19.
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10
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Adomi M, Kuno T, Komiyama J, Taniguchi Y, Abe T, Miyawaki A, Imai S, Morita K, Saito M, Ohbe H, Kamio T, Tamiya N, Iwagami M. Association between pre-admission anticoagulation and in-hospital death, venous thromboembolism, and major bleeding among hospitalized COVID-19 patients in Japan. Pharmacoepidemiol Drug Saf 2022; 31:680-688. [PMID: 35324035 PMCID: PMC9088474 DOI: 10.1002/pds.5433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/11/2022] [Accepted: 03/18/2022] [Indexed: 11/18/2022]
Abstract
Purpose The coagulation activation leads to thrombotic complications such as venous thromboembolism (VTE) in patients with coronavirus disease‐2019 (COVID‐19). Prophylactic anticoagulation therapy has been recommended for hospitalized COVID‐19 patients in clinical guidelines. This retrospective cohort study aimed to examine the association between pre‐admission anticoagulation treatment and three outcomes: in‐hospital death, VTE, and major bleeding among hospitalized COVID‐19 patients in Japan. Methods Using a large‐scale claims database built by the Medical Data Vision Co. in Japan, we identified patients hospitalized for COVID‐19 who had outpatient prescription data at least once within 3 months before being hospitalized. Exposure was set as pre‐admission anticoagulation treatment (direct oral anticoagulant or vitamin K antagonist), and outcomes were in‐hospital death, VTE, and major bleeding. We conducted multivariable logistic regression analyses, adjusting for a single summarized score (a propensity score of receiving pre‐admission anticoagulation) for VTE and major bleeding, due to the small number of outcomes. Results Among the 2612 analytic patients, 179 (6.9%) had pre‐admission anticoagulation. Crude incidence proportions were 13.4% versus 8.5% for in‐hospital death, 0.56% versus 0.58% for VTE, and 2.2% versus 1.1% for major bleeding among patients with and without pre‐admission anticoagulation, respectively. Adjusted odds ratios (95% confidence intervals) were 1.25 (0.75–2.08) for in‐hospital death, 0.21 (0.02–1.97) for VTE, and 2.63 (0.80–8.65) for major bleeding. Several sensitivity analyses did not change the results. Conclusions We found no evidence that pre‐admission anticoagulation treatment was associated with in‐hospital death. However, a larger sample size may be needed to conclude its effect on VTE and major bleeding.
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Affiliation(s)
- Motohiko Adomi
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.,Department of Health Services Research, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Toshiki Kuno
- Department of Cardiology, Montefiore Medical Center/Albert Einstein Medical College, NY, USA
| | - Jun Komiyama
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.,Department of Health Services Research, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuta Taniguchi
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.,Department of Health Services Research, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Toshikazu Abe
- Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan.,Department of Emergency and Critical Care Medicine, Tsukuba Memorial Hospital, Tokyo, Japan
| | - Atsushi Miyawaki
- Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan.,Department of Public Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinobu Imai
- Department of Drug Safety and Risk Management, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
| | - Kojiro Morita
- Global Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Makoto Saito
- Division of Infectious Diseases, Advanced Clinical Research Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Ohbe
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Japan
| | - Tadashi Kamio
- Division of Critical Care, Shonan Kamakura General Hospital, 1370-1 Okamoto, Kamakura, Kanagawa, Japan
| | - Nanako Tamiya
- Department of Health Services Research, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan
| | - Masao Iwagami
- Department of Health Services Research, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan
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11
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Sato T, Ogihara Y, Fujimoto N, Usami A, Hamaguchi T, Tanabe M, Okamoto R, Nakase S, Dohi K. Prevalence and Clinical Characteristics of Proximal Deep Venous Thrombosis After a High-Density Coronavirus Disease 2019 Cluster in a Japanese Psychiatric Hospital. Circ J 2022; 86:458-463. [DOI: 10.1253/circj.cj-21-0987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Toru Sato
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine
| | - Yoshito Ogihara
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine
| | - Naoki Fujimoto
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine
| | | | | | - Masaki Tanabe
- Department of Clinical Laboratory, Mie University Hospital
| | - Ryuji Okamoto
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine
| | | | - Kaoru Dohi
- Department of Cardiology and Nephrology, Mie University Graduate School of Medicine
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12
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Oba S, Hosoya T, Amamiya M, Mitsumura T, Kawata D, Sasaki H, Kamiya M, Yamamoto A, Ando T, Shimada S, Shirai T, Okamoto T, Tateishi T, Endo A, Aiboshi J, Nosaka N, Yamanouchi H, Ugawa T, Nagaoka E, Oi K, Tao S, Maejima Y, Tanaka Y, Tanimoto K, Takeuchi H, Tohda S, Hirakawa A, Sasano T, Arai H, Otomo Y, Miyazaki Y, Yasuda S. Arterial and Venous Thrombosis Complicated in COVID-19: A Retrospective Single Center Analysis in Japan. Front Cardiovasc Med 2021; 8:767074. [PMID: 34869681 PMCID: PMC8639692 DOI: 10.3389/fcvm.2021.767074] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/18/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Thrombosis is a characteristic complication in coronavirus disease 2019 (COVID-19). Since coagulopathy has been observed over the entire clinical course, thrombosis might be a clue to understanding the specific pathology in COVID-19. Currently, there is limited epidemiological data of COVID-19-associated thrombosis in the Japanese population and none regarding variant strains of SARS-CoV-2. Here, we elucidate the risk factors and the pattern of thrombosis in COVID-19 patients. Methods: The patients consecutively admitted to Tokyo Medical and Dental University Hospital with COVID-19 were retrospectively analyzed. SARS-CoV-2 variants of concern/interest (VOC/VOI) carrying the spike protein mutants E484K, N501Y, or L452R were identified by PCR-based analysis. All thrombotic events were diagnosed by clinical symptoms, ultrasonography, and/or radiological tests. Results: Among the 516 patients, 32 patients experienced 42 thromboembolic events. Advanced age, severe respiratory conditions, and several abnormal laboratory markers were associated with the development of thrombosis. While thrombotic events occurred in 13% of the patients with a severe respiratory condition, those events still occurred in 2.5% of the patients who did not require oxygen therapy. Elevated D-dimer and ferritin levels on admission were independent risk factors of thrombosis (adjusted odds ratio 9.39 and 3.11, 95% confidence interval 2.08-42.3, and 1.06-9.17, respectively). Of the thrombotic events, 22 were venous, whereas 20 were arterial. While patients with thrombosis received anticoagulation and antiinflammatory therapies with a higher proportion, the mortality rate, organ dysfunctions, and bleeding complications in these patients were higher than those without thrombosis. The incidence of thrombosis in COVID-19 became less frequent over time, such as during the replacement of the earlier strains of SARS-CoV-2 by VOC/VOI and during increased use of anticoagulatory therapeutics. Conclusion: This study elucidated that elevated D-dimer and ferritin levels are useful biomarkers of thrombosis in COVID-19 patients. The comparable incidence of arterial thrombosis with venous thrombosis and the development of thrombosis in less severe patients required further considerations for the management of Japanese patients with COVID-19. Further studies would be required to identify high-risk populations and establish appropriate interventions for thrombotic complications in COVID-19.
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Affiliation(s)
- Seiya Oba
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tadashi Hosoya
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Miki Amamiya
- Department of Cardiovascular Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiro Mitsumura
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Daisuke Kawata
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hirokazu Sasaki
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Mari Kamiya
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akio Yamamoto
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takahiro Ando
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Sho Shimada
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tsuyoshi Shirai
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tsukasa Okamoto
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tomoya Tateishi
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akira Endo
- Trauma and Acute Critical Care Medical Center, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Junichi Aiboshi
- Trauma and Acute Critical Care Medical Center, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Nobuyuki Nosaka
- Department of Intensive Care Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hideo Yamanouchi
- Department of Intensive Care Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Toyomu Ugawa
- Department of Intensive Care Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Eiki Nagaoka
- Department of Cardiovascular Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Keiji Oi
- Department of Cardiovascular Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Susumu Tao
- Department of Cardiovascular Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasuhiro Maejima
- Department of Cardiovascular Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yukie Tanaka
- Research Core, Institute of Research, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kousuke Tanimoto
- Research Core, Institute of Research, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Genome Laboratory, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiroaki Takeuchi
- Department of Molecular Virology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shuji Tohda
- Clinical Laboratory, Tokyo Medical and Dental University (TMDU) Hospital, Tokyo, Japan
| | - Akihiro Hirakawa
- Department of Clinical Biostatistics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tetsuo Sasano
- Department of Cardiovascular Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hirokuni Arai
- Department of Cardiovascular Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasuhiro Otomo
- Trauma and Acute Critical Care Medical Center, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasunari Miyazaki
- Department of Respiratory Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shinsuke Yasuda
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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13
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Mazzaccaro D, Giannetta M, Fancoli F, Milani V, Modafferi A, Malacrida G, Righini P, Marrocco-Trischitta MM, Nano G. COVID and venous thrombosis: systematic review of literature. THE JOURNAL OF CARDIOVASCULAR SURGERY 2021; 62:548-557. [PMID: 34520137 DOI: 10.23736/s0021-9509.21.12022-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION We aimed to review the prevalence, the risk factors and the outcomes of venous thrombosis (VT) in patients hospitalized for COronaVirus Disease 19 (COVID-19). METHODS Electronic bibliographic databases were searched using the words "COVID venous thrombosis". The review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement standards. RESULTS The search of the Literature retrieved 877 results. After assessment of full texts, 69 papers were included in the qualitative analysis and 23 of them in the quantitative evaluation. The analyzed studies included a total of 106838 patients hospitalized for COVID-19 from 01/2020 to 12/2020. The pooled reported prevalence rate of VT was in median 16.7% (IQR 5.8%-30%), being higher in ICU patients (60.8%-85.4%). VT events were reported in about 75% of cases in the popliteal and calf veins. Signs and symptoms were present in 6.1% of cases. At quantitative evaluation, older age, D-dimer and obesity increased the odds to experience a VT (OR 3.54, 95%CI 0.65-6.43, P=0.01; OR=956.86, 95%CI 225.67-1668.05, P=0.01; OR 1.42, 95%CI 1.01-1.99, P=0.03 respectively). Female sex seemed to be protective against the odds of VT (OR 0.77, 95%CI 0.63-0.93, P=0.007). CONCLUSIONS Among patients hospitalized for COVID-19, VT is a relatively common finding, with higher prevalence rates in ICU patients. VT occurs mostly in the distal regions of the lower limb and is asymptomatic in most cases. Older age, obesity and higher D-dimer values on admission increased the odds of VT, while female sex was protective against the odds of VT.
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Affiliation(s)
- Daniela Mazzaccaro
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy -
| | - Matteo Giannetta
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Fabiana Fancoli
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Valentina Milani
- Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Alfredo Modafferi
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Giovanni Malacrida
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Paolo Righini
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | | | - Giovanni Nano
- Operative Unit of Vascular Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy.,Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
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