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Qiu YH, Yang Z, Yang FJ, Su X, Chen BC, Ni HZ. Prophylactic Dose of Rivaroxaban Versus Warfarin for the Treatment of Isolated Calf Muscle Vein Thrombosis: A Retrospective Propensity Score-Matched Analysis. Ann Vasc Surg 2024; 108:508-518. [PMID: 39025209 DOI: 10.1016/j.avsg.2024.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 05/14/2024] [Accepted: 06/10/2024] [Indexed: 07/20/2024]
Abstract
BACKGROUND Prophylactic dose of rivaroxaban is often used in treatment of isolated calf muscle vein thrombosis (ICMVT); nevertheless, its effect is less reported. This study aims to evaluate short-term outcomes in patients with ICMVT who received prophylactic dose of rivaroxaban or warfarin therapy. METHODS A retrospective analysis of 472 ICMVT patients who received 2 different treatment regimens was undertaken. Propensity score matching method was used to balance the confounding effect of baseline clinical data. Chi-squared test and logistic regression analysis were used to compare outcomes (venous thromboembolism events, bleeding events, complete clot resolution) according to the type of treatment regimens before and after propensity score matching. Univariate and multivariable analysis were used to investigate risk factors for incomplete clot resolution of ICMVT after propensity score matching. RESULTS 242 ICMVT patients received prophylactic dose of rivaroxaban (rivaroxaban group, RG), and 230 received warfarin (warfarin group, WG). After propensity score matching, 156 patients were included in each group; Venous thromboembolism (VTE) events occurred in 14 (9.0%) patients in the RG and 10 (6.4%) in the WG (P = 0.395); no major bleeding events occurred in each group, and clinically relevant nonmajor bleeding events occurred in 5 (3.2%) patients in the RG and 10 (6.4%) in the WG (P = 0.186); complete clot resolution at 3 months occurred in 80 (51.3%) patients in the RG and 100 (64.1%) in the WG (P = 0.022). Logistic regression analysis showed that there were no significant differences between RG and WG in VTE events (odds ratio 1.439, 95% confidence interval 0.619-3.347, P = 0.397) and clinically relevant nonmajor bleeding events (odds ratio 0.483, 95% confidence interval 0.161-1.449, P = 0.194); it revealed that complete clot resolution rate at 3 months was different in the 2 groups (odds ratio 0.589, 95% confidence interval 0.375-0.928, P = 0.022). Treatment regimens (prophylactic dose of rivaroxaban), thrombosis (maximum diameter >7 mm), and risk factors for VTE (nonsurgery risk factors, mainly referring to active malignancy) were risk factors for incomplete clot resolution of ICMVT (P < 0.05). CONCLUSIONS In this retrospective study with a short-term follow-up, ICMVT patients who received prophylactic dose of rivaroxaban had no significant differences in VTE and bleeding events compared to those who received warfarin therapy (the overall INR >2.0 for >50% of the time); but it was not conducive to complete clot resolution.
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Affiliation(s)
- Yi-Hui Qiu
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zhe Yang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Fa-Jing Yang
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiang Su
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Bi-Cheng Chen
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Hai-Zhen Ni
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.
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2
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Kang W, Huang C, Yan VKC, Wei Y, Shami JJP, Li STH, Yang Y, Ye X, Tang J, Lee SF, Lee VHF, Chan SL, El Helali A, Lam KO, Ngan RKC, Wong ICK, Chan EW. Effectiveness and safety of continuous low-molecular-weight heparin versus switching to direct oral anticoagulants in cancer-associated venous thrombosis. Nat Commun 2024; 15:5657. [PMID: 38969649 PMCID: PMC11229502 DOI: 10.1038/s41467-024-50037-1] [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: 07/24/2023] [Accepted: 06/25/2024] [Indexed: 07/07/2024] Open
Abstract
Given the existing uncertainty regarding the effectiveness and safety of switching from low-molecular-weight heparin (LMWH) to direct oral anticoagulants (DOACs) in patients with cancer-associated venous thrombosis (CAT), we conducted a comprehensive population-based cohort study utilizing electronic health database in Hong Kong. A total of 4356 patients with CAT between 2010 and 2022 were included, with 1700 (39.0%) patients switching to DOAC treatment. Compared to continuous LMWH treatment, switching to DOACs was associated with a significantly lower risk of hospitalization due to venous thromboembolism (HR: 0.49 [95% CI = 0.35-0.68]) and all-cause mortality (HR: 0.67 [95% CI = 0.61-0.74]), with no significant difference in major bleeding (HR: 1.04 [95% CI = 0.83-1.31]) within six months. These findings provide reassurance regarding the effectiveness and safety of switching from LMWH to DOACs among patients with CAT, including vulnerable patient groups.
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Affiliation(s)
- Wei Kang
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Caige Huang
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Vincent K C Yan
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Yue Wei
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Jessica J P Shami
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Silvia T H Li
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Yu Yang
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Xuxiao Ye
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Junhan Tang
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Shing Fung Lee
- Department of Radiation Oncology, National University Cancer Institute, National University Hospital, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Victor H F Lee
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Clinical Oncology Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Stephen L Chan
- State Key Laboratory of Translational Oncology, Department of Clinical Oncology, Hong Kong Cancer Institute, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Aya El Helali
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Ka On Lam
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Clinical Oncology Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Roger K C Ngan
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Ian C K Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Laboratory of Data Discovery for Health (D24H), Hong Kong Science and Technology Park, Hong Kong SAR, China
- School of Pharmacy, Aston University, Birmingham, B4 7ET, England
- School of Pharmacy, Medical Sciences Division, Macau University of Science and Technology, Macau SAR, China
- The University of Hong Kong Shenzhen Institute of Research and Innovation, Shenzhen, China
| | - Esther W Chan
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
- Laboratory of Data Discovery for Health (D24H), Hong Kong Science and Technology Park, Hong Kong SAR, China.
- The University of Hong Kong Shenzhen Institute of Research and Innovation, Shenzhen, China.
- Department of Pharmacy, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
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3
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Mahé I, Mayeur D, Couturaud F, Scotté F, Benhamou Y, Benmaziane A, Bertoletti L, Laporte S, Girard P, Mismetti P, Sanchez O. [Translation into French and republication of: "Anticoagulant treatment of cancer-associated thromboembolism"]. Rev Med Interne 2024; 45:210-225. [PMID: 38677976 DOI: 10.1016/j.revmed.2024.04.004] [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: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 04/29/2024]
Abstract
Venous thromboembolism (VTE) is a frequent and potentially fatal complication in patients with cancer. During the initial period after the thromboembolic event, a patient receiving anticoagulant treatment is exposed both to a risk of VTE recurrence and also to an elevated bleeding risk conferred by the treatment. For this reason, the choice of anticoagulant is critical. The choice should take into account patient-related factors (such as functional status, age, body mass index, platelet count and renal function), VTE-related factors (such as severity or site), cancer-related factors (such as activity and progression) and treatment related factors (such as drug-drug interactions), which all potentially influence bleeding risk, and patient preference. These should be evaluated carefully for each patient during a multidisciplinary team meeting. For most patients, apixaban or a low molecular-weight heparin is the most appropriate initial choice for anticoagulant treatment. Such treatment should be offered to all patients with active cancer for at least 6months. The patient and treatment should be re-evaluated regularly, and anticoagulant treatment changed when necessary. Continued anticoagulant treatment beyond 6months is justified if the cancer remains active or if the patient experienced recurrence of VTE in the first 6months. In other cases, the interest of continued anticoagulant treatment may be considered on an individual patient basis in collaboration with oncologists.
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Affiliation(s)
- I Mahé
- Service de médecine interne, hôpital Louis-Mourier, AP-HP, 92700 Colombes, France; Inserm UMR S1140, Innovations thérapeutiques en hémostase, université Paris Cité, Paris, France; F-CRIN INNOVTE network, Saint-Étienne, France.
| | - D Mayeur
- Département d'oncologie médicale, centre Georges-François-Leclerc, Dijon, France
| | - F Couturaud
- F-CRIN INNOVTE network, Saint-Étienne, France; Département de médecine interne, médecine vasculaire et pneumologie, Inserm U1304-Getbo, université de Brest, CHU de Brest, Brest, France
| | - F Scotté
- Département interdisciplinaire d'organisation des parcours patients (DIOPP), institut Gustave-Roussy, Villejuif, France
| | - Y Benhamou
- F-CRIN INNOVTE network, Saint-Étienne, France; UniRouen, U1096, service de médecine interne, CHU Charles-Nicolle, Normandie université, Rouen, France
| | - A Benmaziane
- Département d'oncologie et de soins de supports, hôpital Foch, Suresnes, France
| | - L Bertoletti
- F-CRIN INNOVTE network, Saint-Étienne, France; Service de médecine vasculaire et thérapeutique, Inserm, UMR1059, équipe dysfonction vasculaire et hémostase, université Jean-Monnet, Inserm CIC-1408, CHU de Saint-Étienne, Saint-Étienne, France
| | - S Laporte
- F-CRIN INNOVTE network, Saint-Étienne, France; Sainbiose Inserm U1059, unité de Recherche clinique, innovation et pharmacologie, hôpital Nord, CHU de Saint-Étienne, université Jean-Monnet, Saint-Étienne, France
| | - P Girard
- F-CRIN INNOVTE network, Saint-Étienne, France; Institut du thorax Curie-Montsouris, Institut mutualiste Montsouris, Paris, France
| | - P Mismetti
- F-CRIN INNOVTE network, Saint-Étienne, France; Service de médecine vasculaire et thérapeutique, hôpital Nord, CHU de Saint-Étienne, Saint-Étienne, France
| | - O Sanchez
- Inserm UMR S1140, Innovations thérapeutiques en hémostase, université Paris Cité, Paris, France; F-CRIN INNOVTE network, Saint-Étienne, France; Service de pneumologie et de soins intensifs, hôpital européen Georges-Pompidou, AP-HP, Paris, France
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4
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Wang B, Wang Q, Ji Y, Zhang Y, Qiao T. The clinical outcomes of different doses of rivaroxaban in patients with isolated distal deep vein thrombosis. J Vasc Surg Venous Lymphat Disord 2024; 12:101653. [PMID: 37490950 DOI: 10.1016/j.jvsv.2023.07.008] [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: 06/02/2023] [Revised: 07/10/2023] [Accepted: 07/15/2023] [Indexed: 07/27/2023]
Abstract
OBJECTIVE Isolated distal deep vein thrombosis (IDDVT) is defined as thrombosis involving the infrapopliteal veins. The optimal anticoagulant therapy of IDDVT remains controversial. This study aimed to assess whether reduced dose of rivaroxaban was suitable in patients with IDDVT. METHODS Consecutive patients with acute IDDVT were identified by reviewing the venous thromboembolism (VTE) registry databases. Outcomes including VTE recurrence, major bleeding, clinically relevant non-major (CRNM) bleeding, and death. Patients were followed until the first occurrence of any outcomes or the study end date (December 31, 2018). Hazard ratios (HRs) and 95% confidence intervals (CIs) were computed. RESULTS A total of 1246 patients were divided into low-dose (10 or 15 mg/day; n = 716) and standard-dose (20 mg/day; n = 530) groups. The incidences of VTE recurrence, major bleeding, CRNM bleeding, and death between the two groups were 9.64% vs 5.66%, 1.68% vs 3.02%, 4.61% vs 8.68%, and 13.83% vs 10.75%, respectively. After the inverse probability of treatment weighting, HRs for standard-dose vs low-dose of VTE recurrence, major bleeding, CRNM bleeding, and death were 0.54 (95% CI, 0.35-0.84), 1.71 (95% CI, 0.80-3.67), 2.28 (95% CI, 1.40-3.74), and 1.30 (95% CI, 0.91-1.86), respectively. For the subgroup analysis, the interaction with anticoagulation duration and treatment was evident for VTE recurrence (P for interaction = .002), but not for major bleeding. Patients with residual vein thrombosis were associated with an increased risk of VTE recurrence (HR, 1.95; 95% CI, 1.29-2.95). The interaction between risk factors and residual vein thrombosis was evident for VTE recurrence (P for interaction = .085). CONCLUSIONS Standard-dose rivaroxaban reduced the risk of VTE recurrence without increasing the risk of major bleeding in patients with IDDVT. Anticoagulant therapy for >1.5 months should be preferred over shorter durations. Residual vein thrombosis should be assessed as a predictor of recurrence in patients with IDDVT, especially for patients with non-transient factors.
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Affiliation(s)
- Baoyan Wang
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Qing Wang
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ye Ji
- Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yepeng Zhang
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Tong Qiao
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China; Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China.
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5
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Mahé I, Mayeur D, Couturaud F, Scotté F, Benhamou Y, Benmaziane A, Bertoletti L, Laporte S, Girard P, Mismetti P, Sanchez O. Anticoagulant treatment of cancer-associated thromboembolism. Arch Cardiovasc Dis 2024; 117:29-44. [PMID: 38092578 DOI: 10.1016/j.acvd.2023.11.010] [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: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 12/27/2023]
Abstract
Venous thromboembolism (VTE) is a frequent and potentially fatal complication in patients with cancer. During the initial period after the thromboembolic event, a patient receiving anticoagulant treatment is exposed both to a risk of VTE recurrence and also to an elevated bleeding risk conferred by the treatment. For this reason, the choice of anticoagulant is critical. The choice should take into account patient-related factors (such as functional status, age, body mass index, platelet count and renal function), VTE-related factors (such as severity or site), cancer-related factors (such as activity and progression) and treatment-related factors (such as drug-drug interactions), which all potentially influence bleeding risk, and patient preference. These should be evaluated carefully for each patient during a multidisciplinary team meeting. For most patients, apixaban or a low molecular-weight heparin is the most appropriate initial choice for anticoagulant treatment. Such treatment should be offered to all patients with active cancer for at least six months. The patient and treatment should be re-evaluated regularly and anticoagulant treatment changed when necessary. Continued anticoagulant treatment beyond six months is justified if the cancer remains active or if the patient experienced recurrence of VTE in the first six months. In other cases, the interest of continued anticoagulant treatment may be considered on an individual patient basis in collaboration with oncologists.
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Affiliation(s)
- Isabelle Mahé
- Service de Médecine Interne, Hôpital Louis-Mourier, AP-HP, Colombes, France; Université Paris Cité, Inserm UMR S1140, innovations thérapeutiques en hémostase, Paris, France; F-CRIN INNOVTE network, Saint-Etienne, France.
| | - Didier Mayeur
- Département d'Oncologie Médicale, Centre Georges-François-Leclerc, Dijon, France
| | - Francis Couturaud
- Département de Médecine Interne, Médecine Vasculaire et Pneumologie, CHU de Brest, Inserm U1304 -GETBO, université de Brest, Brest, France; F-CRIN INNOVTE network, Saint-Etienne, France
| | - Florian Scotté
- Département Interdisciplinaire d'Organisation des Parcours Patients (DIOPP), Institut Gustave-Roussy, Villejuif, France
| | - Ygal Benhamou
- UNI Rouen U1096, service de médecine interne, Normandie université, CHU Charles-Nicolle, Rouen, France; F-CRIN INNOVTE network, Saint-Etienne, France
| | - Asmahane Benmaziane
- Département d'Oncologie et de Soins de Supports, Hôpital Foch, Suresnes, France
| | - Laurent Bertoletti
- Service de Médecine Vasculaire et Thérapeutique, CHU de Saint-Étienne, INSERM, UMR1059, Equipe Dysfonction Vasculaire et Hémostase, Université Jean-Monnet, Inserm CIC-1408, Saint-Étienne, France; F-CRIN INNOVTE network, Saint-Etienne, France
| | - Silvy Laporte
- SAINBIOSE INSERM U1059, unité de recherche clinique, innovation et pharmacologie, hôpital Nord, université Jean-Monnet, CHU de Saint-Étienne, Saint-Étienne, France; F-CRIN INNOVTE network, Saint-Etienne, France
| | - Philippe Girard
- Institut du Thorax Curie-Montsouris, Institut Mutualiste Montsouris, Paris, France; F-CRIN INNOVTE network, Saint-Etienne, France
| | - Patrick Mismetti
- Service de Médecine Vasculaire et Thérapeutique, CHU Saint-Etienne, Hôpital Nord, Saint-Etienne, France; F-CRIN INNOVTE network, Saint-Etienne, France
| | - Olivier Sanchez
- Université Paris Cité, Inserm UMR S1140, innovations thérapeutiques en hémostase, Paris, France; Service de Pneumologie et de Soins Intensifs, AP-HP, Hôpital Européen Georges-Pompidou, Paris, France; F-CRIN INNOVTE network, Saint-Etienne, France
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Albertsen IE, Lyhne NM, Larsen TB, Nielsen PB. Incidence of venous thromboembolism following head and neck surgery. Eur Arch Otorhinolaryngol 2023; 280:5081-5089. [PMID: 37458791 PMCID: PMC10562290 DOI: 10.1007/s00405-023-08112-8] [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: 03/31/2023] [Accepted: 07/03/2023] [Indexed: 10/10/2023]
Abstract
PURPOSE Venous thromboembolism (VTE) is associated with significant morbidity and mortality in patients undergoing surgery, but conflicting data exist on VTE risk in patients undergoing head and neck surgery for malignant and non-malignant conditions. Our aim was to examine the risk of VTE among patients with and without cancer undergoing head and neck surgery. METHODS We conducted a nationwide cohort study to examine the risk of VTE among patients with an otolaryngological diagnosis using data from the Danish National Patient Register between 2010 and 2018. Analyses were stratified by cancer and anatomical areas of the surgical procedure. RESULTS In total, 116,953 patients were included of whom 10% (n = 12,083) had active cancer. After 3 months, 1.2% of the patients with cancer and 0.3% of the patients without cancer experienced VTE, respectively. For patients undergoing mouth/throat surgery, 0.8% with cancer and 0.2% without cancer had VTE, respectively. After nose/sinuses surgery 0.7% and 0.2%, respectively. No patients experienced VTE after ear surgery; and after endoscopies the numbers were 1.3% and 0.6% respectively. CONCLUSIONS While the minority of patients undergoing head and neck surgery develop VTE postoperatively, the risk increases among those with cancer. To support clinical decision making on anticoagulation, risk stratification tools could be further developed to recognize this hazard in patients with cancer undergoing head and neck surgery.
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Affiliation(s)
- Ida E. Albertsen
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark
- Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
| | - Nina M. Lyhne
- Department of Otolaryngology, Head and Neck Surgery and Audiology, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark
| | - Torben B. Larsen
- Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
- Department of Cardiology, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark
| | - Peter B. Nielsen
- Aalborg Thrombosis Research Unit, Aalborg University, Aalborg, Denmark
- Department of Cardiology, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark
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Jørgensen CT, Tavoly M, Førsund E, Pettersen HH, Tjønnfjord E, Ghanima W, Brækkan SK. Incidence of bleeding and recurrence in isolated distal deep vein thrombosis: findings from the Venous Thrombosis Registry in Østfold Hospital. J Thromb Haemost 2023; 21:2824-2832. [PMID: 37394122 DOI: 10.1016/j.jtha.2023.06.028] [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: 01/30/2023] [Revised: 06/05/2023] [Accepted: 06/22/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND Isolated distal deep vein thrombosis (IDDVT) is a common presentation of deep vein thrombosis. There are limited data on the long-term risk of recurrence after IDDVT. OBJECTIVES We aimed to determine the short- and long-term incidence of venous thrombosis (VTE) recurrence after cessation of anticoagulation and the 3-month incidence of bleeding during anticoagulant treatment in patients with IDDVT. METHODS Between January 2005 and May 2020, 475 patients with IDDVT and without active cancer were identified from the Venous Thrombosis Registry in Østfold Hospital, which is an ongoing registry of consecutive patients with VTE at Østfold Hospital, Norway. Major and clinically relevant, nonmajor bleeding as well as recurrent VTE were registered, and the cumulative incidences of these events were assessed. RESULTS The median age of the patients was 59 years (IQR, 48-72 years), 243 (51%) patients were women, and 175 events (36.8%) were classified as unprovoked. The 1-, 5-, and 10-year cumulative incidences of recurrent VTE were 5.6% (95% CI, 3.7-8.4), 14.7% (95% CI, 11.1-19.4), and 27.2% (95% CI, 21.1-34.5), respectively. The recurrence rates were higher for unprovoked IDDVT than for provoked IDDVT. Among the recurrent events, 18 (29%) were pulmonary embolisms and 21 (33%) were proximal deep vein thromboses. The 3-month cumulative incidence of major bleeding was 1.5% (95% CI, 0.7-3.1) overall and 0.8% (95% CI, 0.2-3.1) when restricted to patients treated with direct oral anticoagulants. CONCLUSION Despite initial treatment, the long-term risk of VTE recurrence after first-time IDDVT is high. The bleeding rates during anticoagulation, particularly with direct oral anticoagulants, were acceptably low.
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Affiliation(s)
- Camilla Tøvik Jørgensen
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Mazdak Tavoly
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway; Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Eli Førsund
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway
| | | | - Eirik Tjønnfjord
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway
| | - Waleed Ghanima
- Department of Research, Østfold Hospital, Sarpsborg, Norway; Clinic of Internal Medicine, Østfold Hospital Sarpsborg, Sarpsborg, Norway; Department of Hematology, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Sigrid Kufaas Brækkan
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway; Thrombosis Research Center, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
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8
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Tang X, Lyu WR, Jin Y, Wang R, Li XY, Li Y, Zhang CY, Zhao W, Tong ZH, Sun B. Modern thromboprophylaxis protocol based on guidelines applied in a respiratory intensive care unit: a single-center prospective cohort study. Thromb J 2022; 20:76. [PMID: 36510234 PMCID: PMC9746213 DOI: 10.1186/s12959-022-00439-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 12/05/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Critically ill patients in intensive care units (ICUs) are at high risk of venous thromboembolism (VTE). This study aimed to explore the prophylaxis effect under a guideline-based thromboprophylaxis protocol among critically ill patients in a respiratory ICU. METHODS For this single-center prospective cohort study, we followed the thromboprophylaxis protocol, which was drawn up based on relevant guidelines and Chinese experts' advice. Clinical data were entered into an electronic case report form and analyzed. Multivariate logistic regression was conducted to explore independent risk factors of VTE event under this protocol. RESULTS From August 1, 2014, to December 31, 2020, 884 patients underwent thromboprophylaxis according to this protocol; 10.5% of them received mechanical prophylaxis, 43.8% received pharmacological prophylaxis, and 45.7% received pharmacological combined with mechanical prophylaxis. The proportion of VTE events was 14.3% for patients who received the thromboprophylaxis protocol, of which 0.1% had pulmonary thromboembolism (PTE), 2.0% had proximal deep vein thrombosis (DVT), and 12.1% had isolated distal DVT. There was no significant difference between different thromboprophylaxis measures. Cirrhosis (OR 5.789, 95% CI [1.402, 23.894], P = 0.015), acute asthma exacerbation (OR 39.999, 95% CI [4.704, 340.083], P = 0.001), and extracorporeal membrane oxygenation treatment (OR 22.237, 95%CI [4.824, 102.502], P < 0.001) were independent risk factors for proximal DVT under thromboprophylaxis. CONCLUSIONS The thromboprophylaxis protocol based on guidelines applied in the ICU was practicable and could help decrease the proportion of PTE and proximal DVT events. The risk factors of VTE events happening under the thromboprophylaxis protocol require more attention. TRIAL REGISTRATION ClinicalTrials.gov: NCT02213978.
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Affiliation(s)
- Xiao Tang
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Wen-Rui Lyu
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Yu Jin
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Rui Wang
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Xu-Yan Li
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Ying Li
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Chun-Yan Zhang
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Wei Zhao
- grid.411607.5Department of Ultrasonic diagnosis, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhao-Hui Tong
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
| | - Bing Sun
- grid.24696.3f0000 0004 0369 153XDepartment of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, No. 8 Gongtinan Road, Chaoyang, Beijing, 100020 China
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Muscular Calf Vein Thrombosis Is Associated With Increased 30-Day Mortality But Not 90-Day Mortality in Older Patients With Hip Fracture. Am J Cardiol 2022; 184:141-146. [PMID: 36123171 DOI: 10.1016/j.amjcard.2022.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/08/2022] [Accepted: 08/11/2022] [Indexed: 11/20/2022]
Abstract
Calf deep vein thrombosis (DVT) is common in patients with hip fractures. However, studies on whether calf DVT has an impact on the prognosis are limited. This retrospective cohort study explored the association between calf DVT and 30-day and 90-day all-cause mortality in older patients with hip fractures. A total of 564 consecutive patients who underwent ultrasound examination were identified from our hip fracture database and categorized into patients with calf DVT (axial DVT, muscular DVT) and no DVT. Of these, 86 patients (15.2%) had ultrasound-confirmed calf DVT, including 66 patients with muscular DVT, and 20 patients with axial DVT. The 30-day and 90-day all-cause mortality were 2.5% and 6.0%, respectively. Multivariate Cox analysis showed that calf DVT was significantly associated with an increased risk of 30-day mortality (hazard ratio [HR] 3.21, 95% confidence interval [CI] 1.05 to 9.84, p = 0.04), but this risk relationship did not persist at 90-day follow-up (HR 1.59, 95% CI 0.69 to 3.71, p = 0.28). When calf DVT was further categorized, muscular DVT remained an independent risk factor for 30-day mortality (HR 3.95, 95% CI 1.18 to 13.15, p = 0.03), whereas this relationship was not found in axial DVT (HR 1.79, 95% CI 0.21 to 15.02, p = 0.59). In conclusion, calf DVT, especially muscular calf DVT but not axial DVT, is independently associated with an increased risk of 30-day mortality in older patients with hip fracture, but this risk relationship did not persist at 90-day follow-up.
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Luo X, Zhang L, Hou C, Li P, Wu S, Wang Z, Yang E, Cui Y, Sun N, Yu Y, An Z, Jin J, Qin Z. Hospitalized patients with isolated distal deep vein thrombosis: anticoagulation therapy or not? Thromb J 2022; 20:52. [PMID: 36100922 PMCID: PMC9472408 DOI: 10.1186/s12959-022-00410-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/03/2022] [Indexed: 11/10/2022] Open
Abstract
Background Isolated distal deep vein thrombosis (IDDVT), a disease frequently detected in hospitalized patients, can progress to proximal deep vein thrombosis (PDVT) and pulmonary embolism (PE). Here, we evaluated the effects of anticoagulation in hospitalized IDDVT patients. Methods We conducted a retrospective study in our hospital and enrolled hospitalized IDDVT patients diagnosed by compression ultrasonography (CUS) from January to December 2020. Participants were divided into anticoagulation (AC) and non-anticoagulation (non-AC) groups. After propensity score matching (PSM), multivariate Cox regression analyses were performed to assess whether anticoagulation was associated with PDVT/PE, and all-cause mortality. Results A total of 426 IDDVT inpatients with CUS follow-up were screened from 1502 distal DVT patients and finally enrolled. The median age was 67 years with 51.4% males and 15.5% cancer patients. The median follow-up was 11.6 months. There were 288 and 138 patients treated with or without anticoagulants, respectively. Patients in the non-AC group had less body mass index and more comorbidities. Patients in the AC group were treated with rivaroxaban or dabigatran (52.1%), low molecular weight heparin (42.7%), and warfarin (5.2%). The PSM generated 111 pairs of well-matched IDDVT patients with or without anticoagulation. The Kaplan–Meier analysis demonstrated that neither the incidence of PDVT/PE (5.4% vs. 2.7%, log-rank p = 0.313) nor all-cause mortality (27.9% vs. 18.9%, log-rank p = 0.098) was significant different between groups. Anticoagulation was not associated with PDVT/PE and all-cause mortality in the multivariable Cox regression analyses using the matched cohorts. The main risk factors for all-cause mortality were age, malignancy history, BMI, sepsis, heart failure, and white blood cell (WBC) count. Conclusions In hospitalized IDDVT patients, the thrombosis extension rate to PDVT/PE was low. Anticoagulation did not reduce the incidence of thrombosis extension of IDDVT and was not associated with all-cause mortality. Supplementary Information The online version contains supplementary material available at 10.1186/s12959-022-00410-1.
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Affiliation(s)
- Xiaolin Luo
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China
| | - Liying Zhang
- Department of Cardiovascular Medicine, People's Hospital of Shapingba District, Chongqing, China
| | - Changchun Hou
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China
| | - Pengda Li
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China
| | - Shaofa Wu
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China
| | - Zebi Wang
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China
| | - Enpu Yang
- Department of Cardiology, People's Hospital of Dianjiang County, Chongqing, China
| | - Yun Cui
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China
| | - Ning Sun
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China
| | - Yang Yu
- Department of Cardiology, People's Hospital of Dianjiang County, Chongqing, China
| | - Zhixia An
- Department of Internal Medicine, Bashan Hospital, Chongqing, China
| | - Jun Jin
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China.
| | - Zhexue Qin
- Department of Cardiology, Xinqiao Hospital, Army Medical University, Shapingba District, No.183, Xinqiaozhengjie Street, Chongqing, China.
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Han W, Wang M, Xie Y, Ruan H, Zhao H, Li J. Prevalence of Pulmonary Embolism and Deep Venous Thromboembolism in Patients With Acute Exacerbation of Chronic Obstructive Pulmonary Disease: A Systematic Review and Meta-Analysis. Front Cardiovasc Med 2022; 9:732855. [PMID: 35355978 PMCID: PMC8959435 DOI: 10.3389/fcvm.2022.732855] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 01/17/2022] [Indexed: 11/30/2022] Open
Abstract
Background Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) increases the risk of pulmonary embolism (PE) and deep venous thrombosis (DVT). AECOPD combined with PE and DVT poses challenges for treatment and management. This necessitates prevention and management to estimate the overall prevalence of PE and DVT among patients with AECOPD and to identify the risk factors. Methods We searched the PubMed, Embase, and Cochrane Library databases from their inception to January 9, 2021 and extracted the data from the included studies. The risk of bias was assessed for each study. We separately calculated the prevalence of PE and DVT in patients with AECOPD. Subgroup analysis and meta-regression analyses were performed to determine the sources of heterogeneity. Furthermore, we assessed the publication bias. Results The meta-analysis included 20 studies involving 5,854 people. The overall prevalence of PE and DVT among patients with AECOPD was 11% (95% CI: 0.06–0.17) and 9% (95% CI: 0.06–0.12), respectively. Subgroup analysis demonstrated that the prevalence of PE among patients with AECOPD was 12, 2, 7, and 16% in the European, South-East Asia, Western Pacific, and Eastern Mediterranean regions, respectively, and the DVT was 10, 9, 9, and 4%, respectively. The prevalence of PE among patients with AECOPD aged ≥ 70 and <70 years old was 6 and 15%, respectively, and the DVT was 8 and 9%, respectively. The prevalence of PE among patients with AECOPD diagnosed within 48 h and other times (beyond 48 h or not mentioned) was 16 and 6%, respectively, and DVT was 10 and 7%, respectively. Conclusion The pooled prevalence of PE and DVT among patients with AECOPD was insignificantly different between the different age groups and the WHO regions. However, the early diagnosis was associated with a higher prevalence of PE. Clinicians and the public need to further improve the awareness of prevention and management for PE and DVT among patients with AECOPD. Systematic Review Registration PROSPERO, identifier CRD42021260827.
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Affiliation(s)
- Weihong Han
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-constructed by Henan Province & Education Ministry of P. R. China, Henan University of Chinese Medicine, Zhengzhou, China
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China
- Department of Respiratory Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Minghang Wang
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-constructed by Henan Province & Education Ministry of P. R. China, Henan University of Chinese Medicine, Zhengzhou, China
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China
- Department of Respiratory Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Yang Xie
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-constructed by Henan Province & Education Ministry of P. R. China, Henan University of Chinese Medicine, Zhengzhou, China
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China
- Department of Respiratory Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Huanrong Ruan
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-constructed by Henan Province & Education Ministry of P. R. China, Henan University of Chinese Medicine, Zhengzhou, China
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China
- Department of Respiratory Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Hulei Zhao
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-constructed by Henan Province & Education Ministry of P. R. China, Henan University of Chinese Medicine, Zhengzhou, China
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China
- Department of Respiratory Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
- *Correspondence: Hulei Zhao
| | - Jiansheng Li
- Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-constructed by Henan Province & Education Ministry of P. R. China, Henan University of Chinese Medicine, Zhengzhou, China
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China
- Department of Respiratory Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
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12
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Zhou M, Zhang W, Zhang Y, Xie T, Mao J, Shi Z. Therapeutic or prophylactic anticoagulation in acute isolated distal deep vein thrombosis: protocol for a prospective, multicentre, single-blind, randomised controlled trial (TOP-IDDVT). BMJ Open 2022; 12:e056826. [PMID: 35228291 PMCID: PMC8886414 DOI: 10.1136/bmjopen-2021-056826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
INTRODUCTION The efficacy and safety of anticoagulant treatment is not established for patients with acute symptomatic isolated distal deep vein thrombosis (IDDVT). In real-world clinical practice, both therapeutic and prophylactic anticoagulation are used for acute IDDVT. However, therapeutic anticoagulation is associated with higher risk of bleeding than prophylactic anticoagulation. Thus, this study aims to assess the efficacy and safety in patients with first acute symptomatic IDDVT treated with therapeutic or prophylactic anticoagulation using rivaroxaban. METHODS AND ANALYSIS This study is a prospective, multicentre, single-blind, randomised controlled trial. Outpatients with a first, acute, symptomatic, objectively confirmed IDDVT in four centres from 1 August 2021 are recruited. Eligible patients are randomised in a 1:1 ratio to receive prophylactic anticoagulation (rivaroxaban 10 mg once a day for 3 months) or therapeutic anticoagulation (rivaroxaban 20 mg once a day for 3 months). All patients are followed for 6 months. The primary efficacy outcome is radiographically confirmed recurrent venous thromboembolism. The primary safety outcome is the incidence of major or clinically relevant non-major bleeding events. ETHICS AND DISSEMINATION This study has been approved by the Ethics Committee of Zhongshan Hospital Fudan University (B2021-175R). Study results will be disseminated through peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT04967573.
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Affiliation(s)
- Min Zhou
- Department of Vascular Surgery, Zhongshan Hospital Fudan University, Shanghai, China
| | - Wan Zhang
- Department of Vascular Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Yucheng Zhang
- Department of Vascular Surgery, Wusong Branch, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tianchen Xie
- Department of Vascular Surgery, Zhongshan Hospital Fudan University, Shanghai, China
| | - Jieqi Mao
- Department of Vascular Surgery, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Zhenyu Shi
- Department of Vascular Surgery, Zhongshan Hospital Fudan University, Shanghai, China
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Distale tiefe Venenthrombosen zeigen ähnliche Outcomes wie proximal gelegene. PHLEBOLOGIE 2022. [DOI: 10.1055/a-1716-7935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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