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Nakano Y, Adachi S, Imai R, Yoshida M, Shimokata S, Murohara T, Kondo T. Mortality, Recurrent Thromboembolism and Major Bleeding in Cancer-Associated and Non-Cancer Pulmonary Embolism Patients Treated With Direct Oral Anticoagulants. Circ J 2024; 88:243-250. [PMID: 33853991 DOI: 10.1253/circj.cj-20-1247] [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] [Indexed: 11/09/2022]
Abstract
BACKGROUND Pulmonary embolism (PE) is a potentially fatal form of venous thromboembolism (VTE). This study compares the mortality, incidence of recurrent VTE, and incidence of major bleeding between non-cancer and cancer-associated PE patients treated with direct oral anticoagulants (DOACs).Methods and Results:This was a retrospective, observational, single-center study involving 130 consecutive patients (87 with active cancer; 43 without cancer) who received DOAC treatment for PE between January 2016 and December 2019. Kaplan-Meier analysis showed significantly higher mortality in cancer-associated PE patients than in non-cancer patients (35/87 [40%] vs. 1/43 [2%], P<0.001, log-rank test, HR 18.6 [95% CI: 2.5-136.0]). In contrast, the cumulative incidences of recurrent VTE and major bleeding were comparable between the 2 groups. Among the cancer-associated PE patients, the incidence for the composite outcome of recurrent VTE or major bleeding was significantly higher in patients undergoing chemotherapy than in those not undergoing chemotherapy (9/37 [24%] vs. 2/50 [4%], P=0.004, log-rank test, HR 6.9 [95% CI: 1.5-32.0]). CONCLUSIONS Although cancer-associated PE patients treated with DOACs showed higher mortality compared with non-cancer patients, presumably because of the presence of cancer, the risk of recurrent VTE or major bleeding was comparable between the 2 groups. Thus, DOAC is an important treatment option for cancer-associated PE, although underlying cancer-related risks (e.g., chemotherapy) remain.
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Affiliation(s)
- Yoshihisa Nakano
- Department of Advanced Medicine in Cardiopulmonary Disease, Nagoya University Graduate School of Medicine
| | - Shiro Adachi
- Department of Cardiology, Nagoya University Hospital
| | - Ryo Imai
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | | | | | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Takahisa Kondo
- Department of Advanced Medicine in Cardiopulmonary Disease, Nagoya University Graduate School of Medicine
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Yamada N, Fukuda I, Nakamura M, Takayama M, Maeda H, Yamashita T, Ikeda T, Mo M, Yamazaki T, Okumura Y, Hirayama A. Prognostication of Patients with Pulmonary Thromboembolism with and without Residual Deep Vein Thrombosis: A Subanalysis of the J'xactly Study. Ann Vasc Dis 2023; 16:181-188. [PMID: 37779650 PMCID: PMC10539124 DOI: 10.3400/avd.oa.22-00111] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 06/04/2023] [Indexed: 10/03/2023] Open
Abstract
Objectives: It is unclear whether patients with acute pulmonary thromboembolism (PE) with and without residual deep vein thrombosis (DVT) have different prognoses, and there is debate over whether inferior vena cava filters (IVCFs) should be used in conjunction with oral anticoagulants in patients with venous thromboembolism (VTE). Materials and Methods: The J'xactly involved 1,016 patients and was a multicenter, prospective, observational research. In this subanalysis, 419 patients with PE with or without residual DVT who received rivaroxaban with or without IVCFs between February 2016 and April 2018 in Japan were examined. Results: Of 419 patients with PE, 320 had residual DVT. There was no difference between the groups with and without DVT in terms of the percentage of patients who experienced symptomatic PE recurrence (2.8% [9/320] vs. 3.0% [3/99]) or who died from VTE-related complications (0.9% [3/320] vs. 1.0% [1/99]). The percentages of patients with symptomatic PE recurrence were 0% and 3.2%, and the percentages of patients who died from VTE-related causes were 0% and 1.1%, respectively, in the groups with (n=39) and without (n=281) IVCF, albeit not being statistically different. Conclusion: Patients with PE with and without residual DVT did not have a different incidence of symptomatic PE recurrence. These results require additional study to be confirmed.
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Affiliation(s)
- Norikazu Yamada
- Department of Cardiology, Kuwana City Medical Center, Kuwana, Mie, Japan
| | - Ikuo Fukuda
- Department of Cardiology, Keimeikai Yokawa Hospital, Miki, Hyogo, Japan
| | | | - Morimasa Takayama
- Department of Cardiology, Sakakibara Heart Institute, Fuchu, Tokyo, Japan
| | - Hideaki Maeda
- Department of Heart and Vascular Center, Ukima Central Hospital, Tokyo, Japan
| | - Takeshi Yamashita
- Department of Cardiovascular Medicine, The Cardiovascular Institute, Tokyo, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine, Tokyo, Japan
| | - Makoto Mo
- Department of Cardiovascular Surgery, Yokohama Minami Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, International University of Health and Welfare, Tokyo, Japan
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Atsushi Hirayama
- Department of Cardiology, Osaka Police Hospital, Osaka, Osaka, Japan
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Yamashita Y. Utility of Rivaroxaban for Real-World Patients With Venous Thromboembolism. Circ J 2023; 87:1185-1186. [PMID: 37225452 DOI: 10.1253/circj.cj-23-0291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- Yugo Yamashita
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University
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Fukuda I, Hirayama A, Kawasugi K, Kobayashi T, Maeda H, Nakamura M, Yamada N, Tajima T, Tachiiri M, Okayama Y, Sunaya T, Hirano K, Hayasaki T. Safety Profile and Effectiveness of Rivaroxaban for Patients With Venous Thromboembolism in Japan - Results From Post-Marketing Surveillance (XASSENT). Circ J 2023; 87:1175-1184. [PMID: 37245989 DOI: 10.1253/circj.cj-23-0104] [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] [Indexed: 05/30/2023]
Abstract
BACKGROUND The incidence of venous thromboembolism (VTE; pulmonary embolism [PE] and/or deep vein thrombosis [DVT]) in Japan is increasing, but relatively small numbers of patients from Japan have been included in studies investigating rivaroxaban (a direct factor Xa inhibitor) for the treatment of VTE and preventing its recurrence.Methods and Results: An open-label, prospective, observational study (XASSENT [NCT02558465]) investigated the safety profile and effectiveness of rivaroxaban for ≤2 years in the treatment of VTE and prevention of its recurrence in Japanese clinical practice. Primary outcomes were major bleeding and symptomatic recurrent VTE. Statistical analyses were exploratory and descriptive. Overall, 2,540 patients were enrolled (safety analysis population [SAP], n=2,387; effectiveness analysis population [EAP], n=2,386). In the SAP, >80% of patients received the approved rivaroxaban dose, the mean (standard deviation) age was 66.6 (15.0) years, ≈74% were >50 kg, and 43% had a creatinine clearance ≥80 mL/min. PE+DVT, PE only, and DVT only were reported in 42%, 8%, and 50% of patients, respectively, and active cancer in 17% of patients. Major bleeding was reported in 69 patients (2.89%; 3.60%/patient-year; SAP) and symptomatic PE/DVT recurrence in 26 patients (1.09%; 1.36%/patient-year; EAP) during the treatment period. CONCLUSIONS XASSENT provided information on the expected proportions of bleeding and VTE recurrence during rivaroxaban treatment in Japanese clinical practice; no new concerns of safety or effectiveness were found.
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Affiliation(s)
- Ikuo Fukuda
- Department of Cardiology, Keimeikai Yokawa Hospital
| | | | - Kazuo Kawasugi
- Department of Internal Medicine, Teikyo University School of Medicine
| | - Takao Kobayashi
- Department of Obstetrics and Gynecology, Hamamatsu Medical Center
| | | | | | | | - Tsubasa Tajima
- Medical Affairs Cardiovascular and Nephrology, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd
| | - Michiya Tachiiri
- Medical Affairs Cardiovascular and Nephrology, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd
| | - Yutaka Okayama
- Pharmacovigilance Monitoring and Governance, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd
| | - Toshiyuki Sunaya
- Statistics and Data Insights, Data Sciences and Analytics, Research and Development Japan, Bayer Yakuhin, Ltd
| | - Kazufumi Hirano
- Pharmacovigilance Monitoring and Governance, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd
| | - Takanori Hayasaki
- Medical Affairs Cardiovascular and Nephrology, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd
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Migita S, Okumura Y, Fukuda I, Nakamura M, Yamada N, Takayama M, Maeda H, Yamashita T, Ikeda T, Mo M, Yamazaki T, Hirayama A. Rivaroxaban treatment for asymptomatic venous thromboembolism: insights from the J'xactly study. Thromb J 2023; 21:88. [PMID: 37599351 PMCID: PMC10440934 DOI: 10.1186/s12959-023-00528-w] [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: 03/19/2023] [Accepted: 08/02/2023] [Indexed: 08/22/2023] Open
Abstract
BACKGROUND An established treatment strategy for asymptomatic pulmonary embolism (PE) or deep vein thrombosis (DVT) remains uncertain in Japan; therefore, in this study, we clarify the characteristics and outcomes of symptomatic compared to asymptomatic patients with PE or DVT. METHODS This prospective, multicenter sub-analysis of the J'xactly study in Japan included 1,016 patients (mean age, 68; 41% male) with venous thromboembolism (VTE) treated with rivaroxaban. RESULTS Asymptomatic PE patients (47% of PE patients) were more likely to have active cancer and asymptomatic proximal DVT at lower severity than symptomatic PE patients, despite no differences in age, sex, or the proportion receiving intensive 30 mg/day-rivaroxaban. Patients with asymptomatic DVT (34% of DVT patients) were older, had higher rates of female sex, active cancer, and distal DVT, and received shorter, less intense rivaroxaban treatment. Incidences did not differ between asymptomatic and symptomatic PE patients for recurrent symptomatic VTE (hazard ratio [HR], 0.60; 95% confidence interval [CI], 0.22-1.62; P = 0.31) or major bleeding (HR, 0.68; 95% CI, 0.20-2.33; P = 0.58), nor between asymptomatic and symptomatic DVT patients for recurrent symptomatic VTE (HR, 0.56; 95% CI, 0.23-1.40; P = 0.21) and major bleeding (HR, 1.47; 95% CI, 0.54-3.97; P = 0.45). CONCLUSIONS The real-world composite adverse event rate for treatment with rivaroxaban, as physician-adjusted for dose and duration, was similar for asymptomatic and symptomatic patients regardless of the presence of PE or DVT, suggesting a favorable safety profile for potential rivaroxaban treatment for asymptomatic VTE.
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Affiliation(s)
- Shohei Migita
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Ohyaguchi-kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Ohyaguchi-kamicho, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Ikuo Fukuda
- Department of Cardiology, Keimeikai Yokawa Hospital, Miki, Japan
| | | | - Norikazu Yamada
- Department of Cardiology, Kuwana City Medical Center, Kuwana, Japan
| | | | - Hideaki Maeda
- Department of Heart and Vascular Center, Ukima Central Hospital, Tokyo, Japan
| | - Takeshi Yamashita
- Department of Cardiovascular Medicine, The Cardiovascular Institute, Tokyo, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine, Tokyo, Japan
| | - Makoto Mo
- Department of Cardiovascular Surgery, Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, International University of Health and Welfare, Tokyo, Japan
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Nakamura M, Fukuda I, Yamada N, Takayama M, Maeda H, Yamashita T, Ikeda T, Mo M, Yamazaki T, Okumura Y, Hirayama A. Duration of Initial Intensive Rivaroxaban Therapy for Patients With Venous Thromboembolism - Subanalysis of the J'xactly Study. Circ Rep 2023; 5:144-151. [PMID: 37025939 PMCID: PMC10072900 DOI: 10.1253/circrep.cr-23-0008] [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: 01/29/2023] [Revised: 02/16/2023] [Accepted: 02/19/2023] [Indexed: 04/08/2023] Open
Abstract
Background: Rivaroxaban, a direct oral anticoagulant, is used as a first-line treatment to prevent venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE). However, whether 21 days is optimal for the initial treatment duration has not been investigated. Methods and Results: In this subanalysis of the prospective multicenter observational J'xactly study, which included 1,039 Japanese patients with acute symptomatic/asymptomatic DVT/PE who were prescribed rivaroxaban, the VTE recurrence rate and incidence of bleeding complications were assessed in 667 patients who underwent intensive rivaroxaban treatment (15 mg, twice daily) for a short (1-8 days), intermediate (9-16), or standard (17-24) duration. The short treatment duration group showed a tendency for increased VTE recurrence/aggravation compared with the standard treatment duration group (6.10% vs. 2.60% per patient-year). The intermediate treatment duration group showed a higher incidence of bleeding events than the standard treatment duration group (9.34% vs. 2.16% per patient-year), without major differences in patient characteristics between the groups. Conclusions: In this subanalysis of the real-world observational J'xactly study of VTE treatment and prevention in Japanese patients with acute symptomatic/asymptomatic DVT/PE, the standard initial intensive rivaroxaban treatment duration (17-24 days) appeared to be safe and effective, providing important insights into the clinical outcomes of the initial rivaroxaban treatment duration in this population.
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Affiliation(s)
| | - Ikuo Fukuda
- Department of Cardiology, Keimeikai Yokawa Hospital Miki Japan
| | - Norikazu Yamada
- Department of Cardiology, Kuwana City Medical Center Kuwana Japan
| | | | - Hideaki Maeda
- Department of Heart and Vascular Center, Ukima Central Hospital Tokyo Japan
| | - Takeshi Yamashita
- Department of Cardiovascular Medicine, The Cardiovascular Institute Tokyo Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine Tokyo Japan
| | - Makoto Mo
- Department of Cardiovascular Surgery, Yokohama Minami Kyosai Hospital Yokohama Japan
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, International University of Health and Welfare Tokyo Japan
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine Tokyo Japan
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Effectiveness and safety of rivaroxaban in patients with venous thromboembolism and active cancer: A subanalysis of the J'xactly study. J Cardiol 2023; 81:268-275. [PMID: 36400414 DOI: 10.1016/j.jjcc.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/17/2022] [Accepted: 11/03/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Data on the effectiveness and safety of rivaroxaban for the treatment of patients with venous thromboembolism (VTE) and active cancer are limited in the Japanese real-world setting. METHODS In this subanalysis of the J'xactly study, which was a multicenter, prospective, observational study, we evaluated the effectiveness and safety of rivaroxaban in patients with acute VTE and active cancer (n = 193) versus those without active cancer (n = 823). RESULTS Compared with patients without active cancer, those with active cancer demonstrated a significantly different age distribution, with fewer aged <65 and ≥75 years; a lower proportion of women; a lower mean body mass index; and a lower proportion of physical inactivity, injury, thrombophilia, and heart failure. There was no difference in the initial dose distribution of rivaroxaban between patients with and without active cancer. The incidences of recurrence or aggravation of symptomatic VTE and major bleeding were not significantly different [VTE: 1.44 % vs. 2.80 % per patient-year, hazard ratio (HR) 0.50, 95 % confidence interval (CI) 0.18-1.39, p = 0.172; major bleeding: 4.49 % vs. 2.55 % per patient-year, HR 1.80, 95 % CI 0.82-3.95, p = 0.137]. Approximately 10 % of patients with active cancer died at 6 months, with a significantly higher cumulative all-cause mortality rate than those without active cancer (23.29 % vs. 2.03 % per patient-year, HR 11.31, 95 % CI 7.30-17.53, p < 0.001). CONCLUSIONS In patients with VTE and active cancer, rivaroxaban showed acceptable effectiveness, although clinically significant bleeding remains a concern. CLINICAL TRIAL REGISTRATION UMIN Clinical Trials Registry number, UMIN000025072.
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Migita S, Okumura Y, Fukuda I, Nakamura M, Yamada N, Takayama M, Maeda H, Yamashita T, Ikeda T, Mo M, Yamazaki T, Hirayama A. Relationship between baseline D-dimer and prognosis in Japanese patients with venous thromboembolism: Insights from the J'xactly study. Front Cardiovasc Med 2023; 10:1074661. [PMID: 36844735 PMCID: PMC9949378 DOI: 10.3389/fcvm.2023.1074661] [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: 10/19/2022] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
Background D-dimer is a biomarker of fibrin production and degradation, and changes in D-dimer concentration suggest fibrin clot formation, which is associated with thromboembolism and hypercoagulable states. Thus, an elevated D-dimer concentration could be a useful prognostic predictor for patients with venous thromboembolism (VTE). Methods and results In this subanalysis of the J'xactly study, a prospective multicenter study conducted in Japan, we examined the clinical outcomes of 949 patients with VTE stratified by baseline D-dimer concentration. The median D-dimer concentration was 7.6 μg/ml (low D-dimer group: <7.6 μg/ml [n = 473, 49.8%]; high D-dimer group: ≥7.6 μg/ml [n = 476, 50.2%]). The mean age of the patients was 68 years, and 386 patients (40.7%) were male. Compared with the low D-dimer group, the high D-dimer group had more frequent pulmonary embolism with or without deep vein thrombosis (DVT), proximal DVT, atrial fibrillation, or diabetes mellitus, and underwent intensive treatment with 30 mg/day rivaroxaban. The incidence of composite clinically relevant events (recurrence or exacerbation of symptomatic VTE, acute coronary syndrome [ACS], ischemic stroke, death from any cause, or major bleeding) was higher in the high D-dimer group than in the low D-dimer group (11.1% vs. 7.5% per patient-year; hazard ratio, 1.46; 95% confidence interval, 1.05-2.04; p = 0.025). There was no significant difference between the high and low D-dimer groups in the incidence of VTE (2.8% vs. 2.5% per patient-year, respectively; p = 0.788), ACS (0.4% per patient-year vs. not observed, respectively; p = 0.078), or major bleeding (4.0% vs. 2.1% per patient-year, respectively; p = 0.087), but there was a significant difference in the incidence of ischemic stroke (1.0% per patient-year vs. not observed, respectively; p = 0.004). Conclusion Elevated D-dimer concentration may be an important prognostic predictor in Japanese patients with VTE.Clinical Trial Registration: UMIN CTR, UMIN000025072 (https://www.umin.ac.jp/ctr/index.htm).
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Affiliation(s)
- Shohei Migita
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan,*Correspondence: Yasuo Okumura,
| | - Ikuo Fukuda
- Department of Cardiology, Keimeikai Yokawa Hospital, Miki, Japan
| | | | - Norikazu Yamada
- Department of Cardiology, Kuwana City Medical Center, Kuwana, Japan
| | | | - Hideaki Maeda
- Department of Heart and Vascular Center, Ukima Central Hospital, Tokyo, Japan
| | - Takeshi Yamashita
- Department of Cardiovascular Medicine, The Cardiovascular Institute, Tokyo, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine, Tokyo, Japan
| | - Makoto Mo
- Department of Cardiovascular Surgery, Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, International University of Health and Welfare, Tokyo, Japan
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Mo M, Fukuda I, Nakamura M, Yamada N, Takayama M, Maeda H, Yamashita T, Ikeda T, Yamazaki T, Okumura Y, Hirayama A. Effectiveness and safety of the direct oral anticoagulant in acute distal deep vein thrombosis: From the prospective multicenter observational study, J'xactly, in Japan. Phlebology 2023; 38:4-15. [PMID: 36433754 DOI: 10.1177/02683555221141310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES We assessed the effectiveness and safety of rivaroxaban in patients with isolated distal deep vein thrombosis (IDDVT). METHODS Symptomatic venous thromboembolism (VTE) and major bleeding were assessed. RESULTS Of 1016 patients with acute symptomatic/asymptomatic DVT and/or pulmonary embolism treated with rivaroxaban, 288 had IDDVT and 294 had proximal DVT (pDVT). The IDDVT group had fewer patients on the higher rivaroxaban dose (30 mg/day) (42.7% vs. 66.0%) and a shorter treatment duration (135.5 vs 369.5 days) than the pDVT group. VTE recurrence occurred in 14 and 11 patients with IDDVT and pDVT, respectively (2.89% vs. 2.29% per patient-year; p = 0.534). Major bleeding was less frequent in the IDDVT group (1.55% vs. 4.53% per patient-year; p = 0.044). Comparable effectiveness and safety were observed with 15 and 30 mg/day rivaroxaban in the IDDVT group. CONCLUSIONS Short-term, low-dose rivaroxaban seems safe and effective for IDDVT treatment.
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Affiliation(s)
- Makoto Mo
- Department of Cardiovascular Surgery, 73663Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Ikuo Fukuda
- Department of Cardiology, Keimeikai Yokawa Hospital, Miki, Japan
| | | | - Norikazu Yamada
- Department of Cardiology, 38153Kuwana City Medical Center, Kuwana, Japan
| | - Morimasa Takayama
- Department of Cardiology, 26383Sakakibara Heart Institute, Fuchu, Japan
| | - Hideaki Maeda
- Division of Cardiovascular Surgery, 38113Nihon University School of Medicine, Tokyo, Japan
| | - Takeshi Yamashita
- Department of Cardiovascular Medicine, The Cardiovascular Institute, Tokyo, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, 36591Toho University Faculty of Medicine, Tokyo, Japan
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, 34804International University of Health and Welfare, Tokyo, Japan
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, 38113Nihon University School of Medicine, Tokyo, Japan
| | - Atsushi Hirayama
- Department of Cardiology, 38420Osaka Police Hospital, Osaka, Japan
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Ueno Y, Ikeda S, Motokawa T, Honda T, Kurobe M, Akashi R, Yonekura T, Yoshimuta T, Eguchi M, Kawano H, Maemura K. Comparison of Effectiveness and Safety Among 3 Direct Oral Anticoagulants in Patients With Venous Thromboembolism - A Single-Center Retrospective Study. Circ Rep 2022; 4:533-541. [PMID: 36408357 PMCID: PMC9638511 DOI: 10.1253/circrep.cr-22-0095] [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: 09/05/2022] [Accepted: 09/05/2022] [Indexed: 08/22/2023] Open
Abstract
Background: Direct oral anticoagulants (DOACs), including edoxaban, rivaroxaban, and apixaban, are administered for the treatment of venous thromboembolism (VTE) in Japan. However, only a few reports have compared the effectiveness and safety of these DOACs. Methods and Results: We retrospectively enrolled 702 patients who received DOACs for VTE treatment between September 2014 and March 2020. We investigated patient demographics, VTE recurrence, major bleeding, and mortality until March 2021, and compared them among the 3 DOACs. Most patients (~70%; n=496) were prescribed edoxaban, followed by apixaban (n=107) and rivaroxaban (n=99). Age, body mass index, renal function, and the proportion of cancer patients did not differ significantly among the DOACs. Edoxaban was administered relatively more in women with low body weight and anemia. The rate of pulmonary embolism was significantly lower among patients receiving edoxaban than apixaban or rivaroxaban (24.4% vs. 41.1% and 53.5%, respectively). VTE reoccurred in 2 patients administered apixaban and 1 patient administered edoxaban. The cumulative incidence of major bleeding at 1 year was 11.7%, 18.5%, and 9.0% in the edoxaban, apixaban, and rivaroxaban groups, respectively. There were no significant differences in the cumulative incidence of major bleeding and all-cause death, estimated by Kaplan-Meier analysis, among the DOACs (log-rank P=0.316 and 0.722, respectively). Conclusions: The safety of the 3 DOACs did not differ significantly in clinical settings, despite differences in patient demographics.
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Affiliation(s)
- Yuki Ueno
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Satoshi Ikeda
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Tetsufumi Motokawa
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Tomohiro Honda
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Masaya Kurobe
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Ryohei Akashi
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Tsuyoshi Yonekura
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Tsuyoshi Yoshimuta
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Masamichi Eguchi
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Hiroaki Kawano
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
| | - Koji Maemura
- Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences Nagasaki Japan
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Hisatake S, Ikeda T, Fukuda I, Nakamura M, Yamada N, Takayama M, Maeda H, Yamashita T, Mo M, Yamazaki T, Okumura Y, Hirayama A. Rivaroxaban Treatment for Patients With Unprovoked or Provoked Venous Thromboembolism ― Subanalysis of the J’xactly Study ―. Circ Rep 2022; 4:490-498. [PMID: 36304427 PMCID: PMC9535131 DOI: 10.1253/circrep.cr-22-0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/09/2022] Open
Abstract
Background: The efficacy and safety of direct oral anticoagulants (DOACs) in patients with unprovoked venous thromboembolism (VTE) remain unclear. Methods and Results: In this subanalysis of the J’xactly study, a multicenter prospective observational study, we evaluated the safety and effectiveness of rivaroxaban in patients with acute VTE according to unprovoked (n=388) or provoked (n=557) VTE status. Median follow-up was 21.2 months. Compared with patients in the provoked group, patients in the unprovoked group were younger, less likely to be female, and had higher body weight. The incidence of symptomatic VTE recurrence was significantly higher in the unprovoked than provoked VTE group (3.54% vs. 1.77% per patient-year; P=0.032). There was no significant difference in the incidence of major bleeding events between rivaroxaban-treated patients with unprovoked and provoked VTE (2.31% vs. 3.75% per patient-year; P=0.289). Although the proportion of patients with a body mass index (BMI) ≥25 kg/m2
who were non-users of antiplatelet agents was higher in the unprovoked VTE group, there was no interaction effect (BMI: 4.58% vs. 1.55% per patient-year [P=0.040; P for interaction=0.361]; concomitant antiplatelet agent non-users: 3.65% vs. 1.72% per patient-year [P=0.028; P for interaction=0.627]). Conclusions: This subanalysis suggests the safety and effectiveness of rivaroxaban in patients with unprovoked VTE. In such patients, DOAC discontinuation should be considered carefully, particularly in those not using antiplatelet agents and those with a high BMI.
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Affiliation(s)
- Shinji Hisatake
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine
| | - Ikuo Fukuda
- Department of Cardiology, Keimeikai Yokawa Hospital
| | | | | | | | - Hideaki Maeda
- Division of Cardiovascular Surgery, Nihon University School of Medicine
| | | | - Makoto Mo
- Department of Cardiovascular Surgery, Yokohama Minami Kyosai Hospital
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, International University of Health and Welfare
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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12
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Yamashita T, Fukuda I, Nakamura M, Yamada N, Takayama M, Maeda H, Ikeda T, Mo M, Yamazaki T, Okumura Y, Hirayama A. Clinical Outcome After Discontinuation of Anticoagulation Therapy in Japanese Patients With Venous Thromboembolism ― Insights From the J’xactly Study ―. Circ Rep 2022; 4:371-377. [PMID: 36032386 PMCID: PMC9360983 DOI: 10.1253/circrep.cr-22-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/03/2022] [Accepted: 06/13/2022] [Indexed: 11/09/2022] Open
Abstract
Background: Rivaroxaban, a direct oral anticoagulant, is used as first-line treatment to prevent venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE). However, the frequency of rivaroxaban discontinuation and the subsequent clinical outcomes remain unclear. Methods and Results: The study was a subanalysis of the prospective, multicenter, observational J’xactly study, conducted in Japan, and included patients who underwent anticoagulant discontinuation without major bleeding and recurrent VTE. The modified intention-to-treat population (n=1,016) included 579 patients (57%) who underwent anticoagulant discontinuation during a mean follow-up period of 20.2 months (mean [±SD] anticoagulation period 6.9±6.2 months). Patients were divided into 3 groups: those with active cancer, those without active cancer and a transient risk factor for VTE, and those without active cancer or a transient risk factor and/or with previous VTE (unprovoked group). After discontinuation, VTE recurrence occurred in 4.1% of patients, with an annual incidence of 4.6%/year and an increased tendency in the unprovoked group; major bleeding occurred in 8 patients (1.4%; annual incidence 1.1%/year), of whom half were in the cancer group. Conclusions: This analysis of a real-world observational study provides data on VTE recurrence after rivaroxaban discontinuation, which will facilitate anticoagulant discontinuation according to individual risk-benefit considerations.
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Affiliation(s)
| | - Ikuo Fukuda
- Department of Cardiovascular Surgery, Suita Tokushukai Hospital
| | | | | | | | - Hideaki Maeda
- Division of Cardiovascular Surgery, Nihon University School of Medicine
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine
| | - Makoto Mo
- Department of Cardiovascular Surgery, Yokohama Minami Kyosai Hospital
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, International University of Health and Welfare
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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13
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Fukamachi D, Okumura Y, Fukuda I, Nakamura M, Yamada N, Takayama M, Maeda H, Yamashita T, Ikeda T, Mo M, Yamazaki T, Hirayama A. Characteristics and clinical outcomes of Japanese patients with venous thromboembolism receiving under-dose rivaroxaban: subanalysis of J'xactly. Curr Med Res Opin 2022; 38:1059-1068. [PMID: 35502571 DOI: 10.1080/03007995.2022.2070379] [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] [Indexed: 11/03/2022]
Abstract
OBJECTIVE Rivaroxaban is commonly prescribed to prevent venous thromboembolism (VTE). Although lower than standard dosages (under-dosing) may be administered in the real-world setting, data on subsequent clinical outcomes in Japanese patients are lacking. METHODS The prospective, multicenter, observational J'xactly study enrolled patients with acute symptomatic/asymptomatic deep vein thromboses (DVT), pulmonary embolism (PE), or both, who were prescribed rivaroxaban. This subanalysis investigated patient characteristics and outcomes associated with rivaroxaban under-dosing. RESULTS Among 1016 evaluable patients, 667 (65.6%) received an initial standard dosage of rivaroxaban (30 mg/day) and 349 (34.4%) received an initial under-dosage (20 mg/day, n = 22; 15 mg/day, n = 282; and 10 mg/day, n = 45). Those receiving an under-dose had significantly lower body weight and slower pulse rate compared with the standard-dose group regardless of DVT or PE status. Under-dosing was common for distal DVTs, but less frequent for massive/submassive PEs. There were no differences between under-dose and standard-dose groups in the incidences of recurring symptomatic VTEs (DVT: 1.77% vs. 3.35% per patient-year, p = .138; PE: 0.84% vs. 2.84% per patient-year, p = .208) or major bleeding (DVT: 3.55% vs. 3.41% per patient-year, p = .960; PE: not observed vs. 2.83% per patient-year, p = .132). CONCLUSIONS In the real-world setting, rivaroxaban under-dosing for patients with VTE occurred in those with lower body weight, slower pulse rate, distal DVT, or non-massive PEs. There were no statistically significant differences in the clinical outcomes for patients received under-dose of rivaroxaban at the discretion of the physicians in the clinical practice compared with those received standard dose of rivaroxaban.
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Affiliation(s)
- Daisuke Fukamachi
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yasuo Okumura
- Division of Cardiology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Ikuo Fukuda
- Department of Cardiovascular Surgery, Suita Tokushukai Hospital, Suita, Japan
| | - Mashio Nakamura
- Department of Internal Medicine, Pediatrics and Cardiology, Nakamura Medical Clinic, Kuwana, Japan
| | - Norikazu Yamada
- Department of Cardiology, Kuwana City Medical Center, Kuwana, Japan
| | | | - Hideaki Maeda
- Division of Cardiovascular Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Takeshi Yamashita
- Department of Cardiovascular Medicine, The Cardiovascular Institute, Tokyo, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine, Tokyo, Japan
| | - Makoto Mo
- Department of Cardiovascular Surgery, Yokohama Minami Kyosai Hospital, Yokohama, Japan
| | - Tsutomu Yamazaki
- Innovation and Research Support Center, International University of Health and Welfare, Tokyo, Japan
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14
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Miyagawa M, Okumura Y, Fukamachi D, Fukuda I, Nakamura M, Yamada N, Takayama M, Maeda H, Yamashita T, Ikeda T, Mo M, Yamazaki T, Hirayama A. Clinical Implication of the Right Ventricular/Left Ventricular Diameter Ratio in Patients with Pulmonary Thromboembolism. Int Heart J 2022; 63:255-263. [DOI: 10.1536/ihj.21-390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
| | - Yasuo Okumura
- Division of Cardiology, Nihon University Itabashi Hospital
| | | | | | | | | | | | - Hideaki Maeda
- Division of Cardiovascular, Respiratory and General Surgery, Nihon University School of Medicine
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15
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Fukuda I, Hirayama A, Kawasugi K, Kobayashi T, Maeda H, Nakamura M, Nakanishi N, Yamada N, Tajima T, Iwashiro S, Okayama Y, Sunaya T, Hirano K, Hayasaki T. Design and Baseline Data for a Prospective Observational Study of Rivaroxaban in Patients with Venous Thromboembolism in Japan (XASSENT). TH OPEN 2021; 5:e521-e532. [PMID: 34877450 PMCID: PMC8639284 DOI: 10.1055/a-1664-1164] [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: 05/26/2021] [Accepted: 10/01/2021] [Indexed: 11/18/2022] Open
Abstract
Background
The efficacy and safety of rivaroxaban have been demonstrated in phase 3 trials of patients with venous thromboembolism (VTE; pulmonary embolism [PE] and deep vein thrombosis [DVT]). Data regarding rivaroxaban treatment of VTE in routine Japanese clinical practice remain limited.
Objectives
XASSENT will evaluate rivaroxaban treatment of VTE in real-world Japanese clinical practice. We report the study design and baseline patient characteristics.
Methods
XASSENT (NCT02558465) is an open-label, prospective observational, post-marketing surveillance cohort study in patients receiving rivaroxaban treatment for VTE. Enrolment took place between November 2015 and March 2018. XASSENT will follow patients for up to 2 years. Primary outcome variables: major bleeding and symptomatic recurrent VTE. Statistical analyses are exploratory and descriptive.
Results
Baseline patient characteristics at June 2020 (
n
= 2,299) are presented (58.2% female; mean age 66.7 years; mean weight 60.9 kg). The population encompasses patients with wide-ranging characteristics including older age, low weight, and renal dysfunction. Most participants (67.6%) had a history of VTE risk factors at baseline. Half of the population (50.4%) had DVT only; 41.4% had DVT with PE; 8.2% had PE only. Overall, 68.4% were inpatients and 77.1% had symptomatic VTE. Rivaroxaban was prescribed for initial treatment in 84.6% of patients and maintenance treatment in 15.4%. Most were prescribed the approved dose of rivaroxaban for initial (30 mg daily; 84.4%) or maintenance (15 mg daily; 81.9%) treatment of VTE in Japan. The most common reason for selecting non-recommended dose was ‘elderly’.
Conclusions
Results from XASSENT will complement phase 3 trial data and inform clinical practice.
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Affiliation(s)
- Ikuo Fukuda
- Department of Cardiovascular Surgery, Suita Tokushukai Hospital, Suita, Japan
| | | | - Kazuo Kawasugi
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | | | - Hideaki Maeda
- Division of Cardiovascular Surgery, Nihon University School of Medicine, Tokyo, Japan
| | | | | | - Norikazu Yamada
- Department of Cardiology, Kuwana City Medical Center, Kuwana, Japan
| | - Tsubasa Tajima
- Medical Affairs Cardiovascular and Nephrology, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd., Osaka, Japan
| | - Sanghun Iwashiro
- Medical Affairs Cardiovascular and Nephrology, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd., Osaka, Japan
| | - Yutaka Okayama
- Pharmacovigilance Monitoring and Governance, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd., Osaka, Japan
| | - Toshiyuki Sunaya
- Statistics and Data Insights, Data Sciences and Analytics, Research and Development Japan, Bayer Yakuhin, Ltd., Osaka, Japan
| | - Kazufumi Hirano
- Pharmacovigilance Monitoring and Governance, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd., Osaka, Japan
| | - Takanori Hayasaki
- Medical Affairs Cardiovascular and Nephrology, Medical Affairs and Pharmacovigilance, Bayer Yakuhin, Ltd., Osaka, Japan
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16
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Marten S, Naue C, Tittl L, Bornhauser M, Beyer-Westendorf J. Long-term VTE treatment with rivaroxaban: Results from the DRESDEN NOAC REGISTRY. Thromb Res 2021; 208:181-189. [PMID: 34808410 DOI: 10.1016/j.thromres.2021.11.006] [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: 07/01/2021] [Revised: 11/08/2021] [Accepted: 11/11/2021] [Indexed: 11/29/2022]
Abstract
Data on long-term effectiveness and safety of venous thromboembolism (VTE) treatment with rivaroxaban are scarce and not available from randomized clinical trials. To supplement the positive results of phase III VTE treatment trials with rivaroxaban, we used data from the ongoing, prospective, non-interventional DRESDEN NOAC REGISTRY to evaluate long-term management patterns and clinical outcomes. Between December 1st 2011 and September 30th 2020, 812 patients with acute VTE (575 DVT; 237 PE) and rivaroxaban treatment were prospectively followed. During treatment (median rivaroxaban exposure 1.1 years IQR 0.3-5.0 years; median follow-up 6.1 years IQR 4.7-7.8 years) rates of recurrent VTE and ISTH major bleeding were 0.7/100 pt. years (95% CI 0.4-1.1) and 2.1/100 pt. years; 95% CI 1.5-2.8, respectively. Of the 427 patients still taking rivaroxaban at 12 months, 276 and 202 were still taking rivaroxaban at 3 and 5 years, respectively. "Scheduled end of treatment" was the leading discontinuation reason also beyond 12 months. When exposure days were divided by the number of major clinical outcomes (recurrent VTE + other major cardiovascular + ISTH major bleeding), continued rivaroxaban treatment had the longest "exposure per event" period (6398 days/event) compared to patients switching to alternative treatments (4658 days/event) or stopping anticoagulation completely (4337 days/event). Our results confirm low thrombotic and major bleeding rates for long-term VTE treatment with rivaroxaban. Beyond 12 months, scheduled treatment discontinuations still occur. Although 3-5% of patients planned for indefinite rivaroxaban therapy switched to other anticoagulants each year, the overall persistence to rivaroxaban was high.
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Affiliation(s)
- Sandra Marten
- Thrombosis Research Unit, Department of Medicine I, Division Hematology, University Hospital "Carl Gustav Carus" Dresden, Fetscherstrasse 74, D-01307 Dresden, Germany
| | - Christiane Naue
- Thrombosis Research Unit, Department of Medicine I, Division Hematology, University Hospital "Carl Gustav Carus" Dresden, Fetscherstrasse 74, D-01307 Dresden, Germany
| | - Luise Tittl
- Thrombosis Research Unit, Department of Medicine I, Division Hematology, University Hospital "Carl Gustav Carus" Dresden, Fetscherstrasse 74, D-01307 Dresden, Germany
| | - Martin Bornhauser
- Thrombosis Research Unit, Department of Medicine I, Division Hematology, University Hospital "Carl Gustav Carus" Dresden, Fetscherstrasse 74, D-01307 Dresden, Germany
| | - Jan Beyer-Westendorf
- Thrombosis Research Unit, Department of Medicine I, Division Hematology, University Hospital "Carl Gustav Carus" Dresden, Fetscherstrasse 74, D-01307 Dresden, Germany.
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Ohashi Y, Ikeda M, Kunitoh H, Sasako M, Okusaka T, Mukai H, Fujiwara K, Nakamura M, Oba MS, Kimura T, Ibusuki K, Takita A, Sakon M. TEMPORARY WITHDRAWAL: One-year incidence of venous thromboembolism, bleeding, and death in patients with solid tumors newly initiating cancer treatment: Results from the Cancer-VTE Registry. Thromb Res 2021; 213:203-213. [DOI: 10.1016/j.thromres.2021.09.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/31/2021] [Accepted: 09/17/2021] [Indexed: 12/21/2022]
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18
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A Novel Diagnostic Method for Acute Pulmonary Thromboembolisms: An X-Ray Fluoroscopic Video Analysis Workstation. JACC Case Rep 2021; 3:941-943. [PMID: 34317661 PMCID: PMC8311256 DOI: 10.1016/j.jaccas.2021.03.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/02/2021] [Accepted: 03/12/2021] [Indexed: 11/18/2022]
Abstract
Contrast-enhanced chest computed tomography is obviously the most frequently used method for diagnosing acute pulmonary thromboembolism (APE). We present a case in which a fluoroscopic video analysis workstation could potentially diagnose an APE and evaluate the improvement in the pulmonary circulation after anticoagulant therapy without either contrast media or a breath hold. (Radwisp PTE; jRCTs032200098) (Level of Difficulty: Advanced.)
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