• Title/Summary/Keyword: deep vein thrombosis (DVT)

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Respiratory Review of 2013: Pulmonary Thromboembolism

  • Hwang, Hun Gyu;Schulman, Sam
    • Tuberculosis and Respiratory Diseases
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    • v.75 no.3
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    • pp.89-94
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    • 2013
  • Pulmonary embolism (PE), which can originate as a consequence of deep vein thrombosis (DVT), is the most frequent and potentially fatal venous thromboembolic event. Despite the fact that the incidence of venous thromboembolism (VTE) in Asians is lower than that in the Western populations, a recent epidemiologic study demonstrates an increasing incidence of VTE in the Korean population. Anticoagulants, including low molecular weight heparin (LMWH) and vitamin K antagonist (VKAs), have been the main treatments for PE, however, recently new oral anticoagulants (NOACs) were introduced. We will review how well patients with PE can be managed with the existing anticoagulants and NOACs along with the time span of treatment, which still pose some challenges for clinicians.

Pharmaco-mechanical Thrombectomy and Stent Placement in Patients with May-Thurner Syndrome and Lower Extremity Deep Venous Thrombosis (May-Thurner 증후군과 동반된 하지 심부정맥혈전환자에서 혈전제거술과 스텐트삽입술)

  • Jeon, Yonh-Sun;Kim, Yong-Sam;Cho, Jung-Soo;Yoon, Yong-Han;Baek, Wan-Ki;Kim, Kwang-Ho;Kim, Joung-Taek
    • Journal of Chest Surgery
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    • v.42 no.6
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    • pp.757-762
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    • 2009
  • Background: Compression of the left common iliac vein by the overriding common iliac artery is frequently combined with acute deep vein thrombosis in patients with May-Thurner Syndrome. We evaluate the results of treatment with thrombolysis and thrombectomy followed by stenting in 34 patients with May-Thurner Syndrome combined with lower extremity deep venous thrombosis. Material and Method: The authors retrospectively reviewed the records of 34 patients (mean age: $65{\pm}14$ year old) who had undergone stent insertion for acute deep vein thrombosis that was caused by May-Thurner syndrome. After thrombectomy and thrombolysis, insertion of a wall stent and balloon angioplasty were performed to relieve the compression of the left common iliac vein. Urokinase at a rate of 80,000 to 120,000 U/hour was infused into the thrombosed vein via a multi-side hole thrombolysis catheter. A retrieval inferior vena cava (IVC) filter was placed to protect against pulmonary embolism in 30 patients (88%). Oral anticoagulation with warfarin was maintained for 3 months, and follow-up Multi Detector Computerized Tomography (MDCT) angiography was done at the date of the patients' hospital discharge and at the 6 months follow-up. Result: The symptoms of deep venous thrombosis disappeared in two patients (4%), and there was clinical improvement within 48 hours in twenty eight patients (82%), but there was no improvement in four patients (8%). The MDCT angiography at discharge showed no thrombus in 9 patients (26%) and partial thrombus in 21 (62%), whereas the follow-up MDCT at $6.4{\pm}5.5$ months (32 patients) revealed no thrombus in 23 patients (72%), and partial thrombus in 9 patients (26%). Two patients (6%) had recurrence of DVT, so they underwent retreatment. Conclusion: Stent insertion with catheter-directed thrombolysis and thrombectomy is an effective treatment for May-Thurner syndrome combined with acute deep vein thrombosis in the lower extremity.

Serious Bleeding Complication Due to the Use of Low-molecular-weight heparin to treat a Traumatic Patient with Acute Renal Failure (급성신부전이 발생한 중증 외상 환자에서 저분자량헤파린 투여 후 발생한 심각한 출혈 합병증)

  • Kyoung, Kyu-Hyouck;Kim, Woon-Won;Park, Sung-Jin;Kim, Ki-Hoon;Kim, Jin-Soo;Park, Jong-Kwon
    • Journal of Trauma and Injury
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    • v.24 no.2
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    • pp.164-167
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    • 2011
  • Trauma is an important risk factor for a pulmonary thromboembolism, and anticoagulation is essential to prevent deep vein thrombosis (DVT) in patients with trauma. Low-molecular-weight heparin (LMWH) is excreted in the kidney; therefore, using LMWH in patients with renal insufficiency may increase the risk of bleeding complication. The following case describes a 55-year-old traffic accident victim who had massive bleeding and underwent a laparotomy for bleeding control. The patient had acute renal failure, and enoxaparin was administered for the prophylaxis of DVT. Although the patient suffered from serious complications such as pericardial hematoma, the patient recovered without sequellae and was discharged at day 84.

Development of a Measurement System of the Transferred Pressure from Intermittent Pneumatic Compression Device (간헐적공기압박장치의 전달압력 측정시스템 개발)

  • Lee, Wonhee;Seo, Jong Hyun;Kim, Jun;Kang, Seung Ho;Kim, Gook Han;Chung, Seung Hyun;Kim, Kwang Gi;Kang, Hyun Guy
    • Journal of Biomedical Engineering Research
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    • v.37 no.1
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    • pp.39-45
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    • 2016
  • A pressure measurement system was developed to verify magnitude and position of transferred pressure on the body surface during the intermittent pneumatic compression (IPC) which is one of the most well-known methods for the prevention of deep vein thrombosis (DVT). Eighty force sensing resistors (FSR) were arranged on a mannequin leg and a hardware controller sensed, digitized, and transferred pressure data every second while IPC was being applied. Finally, sensed pressure data were color coded and visualized on the 3D model with lab-developed software. The pressure data were also saved to files for further analysis. Using this measurement system, the changing pattern of pressure was measured on the mannequin leg by changing both chamber pressure and cuff tightness. As a result, net pressure transferred onto the body surface is dependent on chamber pressure and cuff tightness. Under the same chamber pressure, the tighter a cuff was worn, the wider compressed area was and the shorter compression cycle was. Also transferred pressure was proportional to both chamber pressure and cuff tightness.

Venous Thromboembolism Following Acute Ischemic Stroke: A Prospective Incidence Study

  • Ko, Keun Hyuk;Kang, Ji-Hoon;Kang, Sa-Yoon;Lee, Jung Seok;Song, Sook-Keun;Oh, Jung-Hwan;Kim, Joong-Goo;Han, Eun Young;Lee, Ho Kyu;Choi, Jay Chol
    • Journal of Neurocritical Care
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    • v.11 no.2
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    • pp.102-109
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    • 2018
  • Background: A sians were known to have a relatively lower incidence of venous thromboembolism (VTE), and there is insufficient evidence to suggest a specific D-dimer threshold level for screening VTE in patients with acute stroke. Methods: We prospectively enrolled patients with acute ischemic stroke admitted to Jeju National University Hospital. The inclusion criteria were: 1) aged ${\geq}18$ years, 2) admission within seven days of symptom onset, and 3) an initial National Institute of Health Stroke Scale (NIHSS) score >1 for the affected lower limb. Ultrasound scans of the lower limbs and plasma D-dimer assays were performed on days 7-14 and 15-28 after stroke onset. Results: Of 285 patients admitted during the study period, 52 patients met inclusion criteria (mean age 74.5, male 40.4%, median initial NIHSS score 12, and unable to walk unassisted at discharge 76.9%). During 7-14 days, 23 of 52 patients (44.2%) had a D-dimer level above 1.57 mg/L, and 9.6% had a level above 5.50 mg/L. Proximal deep vein thrombosis (DVT) was detected in 3 patients (5.8%, 95% confidence Interval 1.2-16.0%) on ultrasound examination. All DVTs were found in elderly female patients with severe leg weakness. No patient was diagnosed with pulmonary embolism during the study period. Conclusion: The incidence of VTE seems to be very low among Korean patients with acute ischemic stroke. Advanced age, female sex, and severe leg weakness were important risk factors for developing DVT in this study.

A Clinical Case Study of Patient that Not Improved Thrombocytopenia after Intravenous Immunoglobulin Treatment at Idiopathic Thrombocytopenic Purpura as a Complication of Deep Vein Thrombosis (DVT와 병발한 ITP환자에서 정맥 내 면역글로불린요법 시행 후 호전되지 않는 혈소판감소 환자 치험 1례)

  • Lee, Kyeung A;Jung, Jae Youp;Lee, Eun Sol;Seo, Dong Goon;Sin, So Yeon;Jang, Sun Hui;Yoon, Hyoun Min;Kim, Cheol Hong;Jeong, Jong Hun;Jang, Kyung Jeon
    • Journal of Acupuncture Research
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    • v.30 no.4
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    • pp.203-210
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    • 2013
  • Objectives : The purpose of this study is to report clinical effect of oriental medical for a not improved ITP patient, who developed complication from DVT, after intravenous immunoglobulin treatment. Methods : The patient was treated using Saam acupuncture, herbal medication, moxibustion and physical treatment. And we measured of systemic symptoms and platelet counts. Results : After treatment, systemic symptoms and platelet counts were improved in case. Conclusions : Oriental medical treatment showed significant effect on ITP patient that not improved platelet counts after intravenous immunoglobulin treatment.

Incidence and Clinical Characteristic of Venous Thromboembolism in Gynecologic Oncology Patients attending King Chulalongkorn Memorial Hospital over a 10 Year Period

  • Oranratanaphan, S;Termrungruanglert, W;Khemapech, N
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.15
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    • pp.6705-6709
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    • 2015
  • Background: Venous thromboembolisms (VTEs) constitute a group of diseases including deep vein thrombosis (DVT) and pulmonary embolism (PE). They regarded as the second leading cause of death in cancer patients and several studies have confirmed that VTEs have a negative impact on survival and recurrent rate in both ovarian and endometrial cancer cases. The incidence of VTEs differs worldwide and depends on several risk factors including race, underlying disease, lifestyle, body weight, BMI and genetic risk factors. There is heterogeneity of DVT rates between Asian and Western countries. This study was conducted in order to evaluate the character and incidence of VTEs in gynecologic oncology patients in King Chulalongkorn Memorial Hospital over a 10 year period. Materials and Methods: A retrospective chart review was performed with VTEs defined as objective diagnosis of acute DVT or PE with typical symptoms and signs. Diagnoses were approved byan internist and/or confirmed with imaging studies. Data from both outpatient and inpatient sessions of the affected cases from January 2004 to December 2013 were extracted. General characteristics of the patients were collected with details of the diseases, types of cancer, stage, date of diagnosis of cancer, operative data, treatment outcome, progression free survival and overall survival. Results: Thirty cases of VTEs were identified in a total 2,316 gynecologic oncology cases. The incidence of symptomatic VTEs in total gynecologic oncology patients in our institution is 1.295%. The incidence of VTEs in ovarian cancer patients in our institution was 5.9%. Duration for VTE detection ranged from 13 months before diagnosis of cancer to 33 months after diagnosis of cancer. Most of the VTE cases were detected in ovarian cancer patients (60%). The most common cell type was adenocarcinoma (moderately to poorly differentiated) which accounted for 26.7% of the cases. The second most common cell type was clear cell carcinoma with 23.3% of the cases. Thirty percent of VTE cases developed before cancer was diagnosed, 20% were diagnosed at the same time as cancer detection and fifty percent developed after cancer was diagnosed. Median disease free survival of the gynecologic oncology patients with VTE was 7.5 months. Median overall survival (OS) was 12 months. Median progession free survivals of DVT and PE groups were 11.5 and 5.5 months, respectively. OS of DVT and PE was 12.0 and 11.5 months respectively. Conclusions: The incidence of VTE in Asian countries is believed to be lower than in European or Western countries. From our retrospective review, the incidence of VTEs in all types of gynecologic oncology was 1.295%, much lower than reported in the West. The reason for the lower incidence may genetic differences. Another factor is that VTE in this review was symptomatic, which is less than asymptomatic VTE. More than half of VTEs in this study developed in ovarian cancer patients. The results are compatible with earlier reports that among gynecologic malignancies, the incidence of VTE is highest in ovarian cancer.

A Study on the Aviation Case Law - Focusing on the Air Carrier's Liability for Passenger - (항공판례의 연구 - 여객운송인의 책임을 중심으로 -)

  • Kim, Jong-Bok
    • The Korean Journal of Air & Space Law and Policy
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    • v.22 no.2
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    • pp.53-83
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    • 2007
  • The purpose of this paper is to study precedent cases of the Air carrier liability for passengers. The article 17 of Warsaw Convention (also in Montreal Convention article 17-1) provides the Air carrier liability for passengers which is the most essential part of the Air carrier liability. According to these Conventions, 1) the carrier is liable for damage sustained in case of death or bodily injury of a passenger. Precedents and theories have disagreements on whether the damage covers the mental injury as well. 2) The carrier is liable for damage sustained from aviation accident. The definition of 'aviation accident' is becoming problematic. 3) The carrier is liable for damage sustained in case of death or bodily injury of a passenger upon condition only that the accident which caused the death or injury took place on board the aircraft or in the course of any of the operations of embarking or disembarking. The question at issue is the range of the operations of embarking or disembarking. This paper introduces the precedents (also, the model precedents) about the carriers liability for passengers and related cases, so as to help understand the trend of judicial decisions. Furthermore, the cases, once took all of the attention of the international air carriers, concerned with the 'Economy class syndrome' (DVT : Deep Vein Thrombosis) are also presented. Under the new Montreal Convention, the carriers liability for passengers will continue to be the main issue. Thus it is required that academics as well as practical businesses may keep up their studies about this issue.

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The Beneficial and Adverse Effects of Raloxifene in Menopausal Women: A Mini Review

  • Khorsand, Imaneh;Kashef, Reyhaneh;Ghazanfarpour, Masumeh;Mansouri, Elaheh;Dashti, Sareh;Khadivzadeh, Talat
    • Journal of Menopausal Medicine
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    • v.24 no.3
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    • pp.183-187
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    • 2018
  • Objectives: The present mini review aimed to summarize the existing knowledge regarding the beneficial and adverse effects of raloxifene in menopausal women. Methods: This study is a review of relevant publications about the effects of raloxifene on sleep disorder, depression, venous thromboembolism, the plasma concentration of lipoprotein, breast cancer, and cognitive function among menopausal women. Results: Raloxifene showed no significant effect on depression and sleep disorder. Verbal memory improved with administration of 60 mg/day of raloxifene while a mild cognitive impairment risk reduction by 33% was observed with administration of 120 mg/day of raloxifene. Raloxifene was associated with a 50% decrease in the need for prolapse surgery. The result of a meta-analysis showed a significant decline in the plasma concentration of lipoprotein in the raloxifene group compared to placebo (standardized mean difference, -0.43; 10 trials). A network meta-analysis showed that raloxifene significantly decreased the risk of breast cancer (relative risk, 0.572; 95% confidence interval, 0.327-0.881; P = 0.01). In terms of adverse effects of raloxifene, the odds ratio (OR) was observed to be 1.54 (P = 0.006), indicating 54% increase in the risk of deep vein thrombosis (DVT) while the OR for pulmonary embolism (PE) was 1.05, suggesting a 91% increase in the risk of PE alone (P = 0.03). Conclusions: Raloxifene had no significant effect on depression and sleep disorder but decreased the concentration of lipoprotein. Raloxifene administration was associated with an increased risk of DVT and PE and a decreased risk of breast cancer and pelvic organ prolapse in postmenopausal women.

Lower Extremity Edema in Terminal Cancer Patients (말기 암 환자에서의 하지 부종)

  • Shim, Byoung-Yong;Hong, Seok-In;Park, Ji-Chan;Hong, Sug-Hui;Choi, Gang-Heun;Cho, Hong-Joo;Kim, Seon-Young;Han, Sun-Ae;Lee, Ok-Kyung;Kim, Hoon-Kyo
    • Journal of Hospice and Palliative Care
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    • v.8 no.2
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    • pp.152-155
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    • 2005
  • Purpose: The lower extremity edema (LEE) is a common distressful symptom in advanced cancer patients and is hard to manage. We analyze the characteristics of LEE in patients with advanced cancer to provide the basic information of causes and adequate management. Methods: Physical examination, assessment of the location and severity of edema, blood chemistry (albumin, creatinine), Doppler Sono for patients with suspecting deep vein thrombosis (DVT), and abdomen CT scan for patient with suspecting lymph edema were performed. Severity of edema was classified according to NCI lymph edema scaling and improvement was defined as lowering at least 1 grade of edema after management. Results: Among 154 patient who had been admitted to Hospice Ward from Mar 2003 to Jan 2004, 33 had LEE, and 6 had both upper extremity edema and LEE except generalized edema. Their underlying cancers were stomach (7), lung (6), biliary tract (5), liver (5), colorectal (5), pancreas (2), and others (9). There were 12 patient with grade I, 20 patients with grade II, and 7 patients with grade III edema. The causes were hypoalbuminemia (11), lymph edema (10), DVT (7), obstruction of inferior vena cava (IVC) or portal vein (6), and dependent edema (5). The common managements were including leg elevation and diuretics. Elastic stocking was applied for patients with DVT and leg massage and pneumatic compression was used for lymph edema. The 2/3 patients were improved after management. Conclusion: The incidence of LEE in terminal cancer pts was high (25.3%) and their causes were variable including lymph edema, DVT, hypoalbuminemia and dependent edema. Active noninvasive management according to causes could result in good palliation.

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