scholarly journals Seasonal variations and the risk of venous thromboembolism: A narrative review article

2019 ◽  
Vol 7 (4) ◽  
pp. 105-109
Author(s):  
Reza Hajizadeh ◽  
Hanieh Sakha ◽  
Sahar Ghodratizadeh ◽  
Ali Soleimany

Different investigations on seasonal variations of the pulmonary thromboembolism and deep vein thrombosis (DVT) incidence have not yielded a definite conclusion. Some papers showed significant increase in incidence of thromboembolism in winter; on the other hand, others neglected that correlation. Some articles have tried to show infrastructure of these variations. Better understanding of the cornerstone of these variations can result in prevention of disease and saving lives of susceptible people. In this narrative review article, we reviewed previous articles according to the region of study and tried to find the factors affecting diverse results among different studies.

2021 ◽  
Vol 29 (3) ◽  
pp. 384-390
Author(s):  
Yasemin Ateş ◽  
Züleyha Bingöl ◽  
Gülfer Okumuş ◽  
Orhan Arseven

Background: The aim of the study was to evaluate the frequency of recurrence and the risk factors for recurrence in patients who were diagnosed with venous thromboembolism. Methods: Between January 2005 and January 2015, a total of 412 venous thromboembolism patients (164 males, 248 females; mean age: 53.5±16.6 years; range: 19 to 95 years) were retrospectively analyzed. The demographics, underlying risk factors, comorbidities, imaging findings, and treatment data of the patients were recorded. Results: At least one transient/permanent risk factor was found in 341 (82.7%) of the index events, and the other 71 (17.2%) were idiopathic. Recurrence developed in 76 (18.4%) of the patients. The duration of the treatment in the first event was significantly longer in recurrent cases (p=0.007). The recurrence rate in patients diagnosed with only deep vein thrombosis or patients diagnosed with pulmonary thromboembolism + deep vein thrombosis was significantly higher than the patients diagnosed with only pulmonary thromboembolism (24% vs. 14.2%, respectively; p=0.007). The rate of idiopathic venous thromboembolism was higher in recurrent cases than in non-recurrent cases (26.3% vs. 15.2%, respectively; p=0.028). At the end of the first year, the mean D-dimer levels were higher in recurrent cases (p=0.034). Hereditary risk factors were also higher in recurrent cases (39.5% vs. 19.3%, respectively; p=0.031). There was no significant correlation between recurrence and mortality. Conclusion: The presence of deep vein thrombosis, idiopathic events, high D-dimer levels at the end of the first year and hereditary risk factors seem to be associated with recurrence.


PRILOZI ◽  
2021 ◽  
Vol 42 (2) ◽  
pp. 89-97
Author(s):  
Marijan Bosevski ◽  
Emilija Lazarova Trajkovska ◽  
Gorjan Krstevski ◽  
Filonid Aliu ◽  
Safet Salkoski ◽  
...  

Abstract Research shows that the presence of cancer increases the likelihood of developing venous thromboembolism (pulmonary thromboembolism and deep vein thrombosis) from as much as fourfold up to sevenfold. It is imperative that after early diagnosis we treat cancer-associated thrombosis with grave seriousness in order to reduce its morbidity and mortality. We present 14 case reports of patients with cancer-associated thrombosis including thrombosis related to malignant hemopathies.


2021 ◽  
Author(s):  
Mamoru Morikawa ◽  
Tomoko Adachi ◽  
Atsuo Itakura ◽  
Masafumi Nii ◽  
Yasushi Nakabayashi ◽  
...  

Abstract Background: In Japan, deliveries by women of older maternal age and by women with overweight or obesity have recently increased. While, since 2008, the guidelines and practices to prevent the maternal VTE have been recommended. This study aims to clarify the incidence and characteristics of venous thromboembolism (VTE) in pregnant women in Japan to reduce the rate of mortality from VTE.Methods: Of 2299 institutions sent the surveillance questionnaire, 666 (29.0%) responded, and data from 295,961 women who gave birth in those institutions in 2018 were analyzed. We calculated the incidence and characteristics of VTE before and after the deliveries in the three types of institutions (perinatal medical centers, general hospital with obstetric facilities, and maternal clinic with beds). To clarify the incidence and characteristics of VTE, and to clarify the relationship between the incidence of the VTE and the types of institutions in 2018 in Japan.Results: At the responding institutions, 20 (0.0068%) died, and 243 women (0.082%) had VTE. Deep vein thrombosis was significantly more common (0.0053%) than pulmonary thromboembolism (0.0019%; p < 0.0001). The incidence of antepartum VTE (0.0055%) was significantly higher than that of postpartum VTE (0.0026%; p < 0.0001). Among the 165 women with antepartum VTE, perioperative pulmonary thromboembolism (30.0%) was more common than perioperative deep vein thrombosis (8.8%, p = 0.0150). The incidence of VTE after cesarean section (0.0074%) was significantly higher than that after vaginal delivery (0.0012%; p < 0.0001). After cesarean section, the incidence of pulmonary thromboembolism (46.4%) was significantly higher than that of deep vein thrombosis (10.8%; p < 0.0001). Of the women with VTE, four (1.6%) died.Conclusions: Obstetricians should be strongly encouraged to administer thromboprophylaxis to decrease the incidence of VTE because among women thought to have low risk of VTE, the incidence might have increased in Japan.


2020 ◽  
Vol 30 (4) ◽  
pp. 491-497 ◽  
Author(s):  
Julia Rose Salinaro ◽  
Kourtnie McQuillen ◽  
Megan Stemple ◽  
Robert Boccaccio ◽  
Jessie Ehrisman ◽  
...  

ObjectivesNeoadjuvant chemotherapy may be considered for women with epithelial ovarian cancer who have poor performance status or a disease burden not amenable to primary cytoreductive surgery. Overlap exists between indications for neoadjuvant chemotherapy and known risk factors for venous thromboembolism, including impaired mobility, increasing age, and advanced malignancy. The objective of this study was to determine the rate of venous thromboembolism among women receiving neoadjuvant chemotherapy for epithelial ovarian cancer.MethodsA multi-institutional, observational study of patients receiving neoadjuvant chemotherapy for primary epithelial ovarian, fallopian tube, or peritoneal cancer was conducted. Primary outcome was rate of venous thromboembolism during neoadjuvant chemotherapy. Secondary outcomes included rates of venous thromboembolism at other stages of treatment (diagnosis, following interval debulking surgery, during adjuvant chemotherapy, or during treatment for recurrence) and associations between occurrence of venous thromboembolism during neoadjuvant chemotherapy, subject characteristics, and interval debulking outcomes. Venous thromboembolism was defined as deep vein thrombosis in the upper or lower extremities or in association with peripherally inserted central catheters or ports, pulmonary embolism, or concurrent deep vein thrombosis and pulmonary embolism. Both symptomatic and asymptomatic venous thromboembolism were reported.ResultsA total of 230 patients receiving neoadjuvant chemotherapy were included; 63 (27%) patients overall experienced a venous thromboembolism. The primary outcome of venous thromboembolism during neoadjuvant chemotherapy occurred in 16 (7.7%) patients. Of the remaining venous thromboembolism events, 22 were at diagnosis (9.6%), six post-operatively (3%), five during adjuvant chemotherapy (3%), and 14 during treatment for recurrence (12%). Patients experiencing a venous thromboembolism during neoadjuvant chemotherapy had a longer mean time to interval debulking and were less likely to undergo optimal cytoreduction (50% vs 80.2%, p=0.02).ConclusionsPatients with advanced ovarian cancer are at high risk for venous thromboembolism while receiving neoadjuvant chemotherapy. Consideration of thromboprophylaxis may be warranted.


2017 ◽  
Author(s):  
Guillermo A. Escobar ◽  
Peter K. Henke ◽  
Thomas W. Wakefield

Deep vein thrombosis (DVT) and pulmonary embolism (PE) comprise venous thromboembolism (VTE). Together, they comprise a serious health problem as there are over 275,000 new VTE cases per year in the United States, resulting in a prevalence of one to two per 1,000 individuals, with some studies suggesting that the incidence may even be double that. This review covers assessment of a VTE event, initial evaluation of a patient suspected of having VTE, medical history, clinical presentation of VTE, physical examination, laboratory evaluation, imaging, prophylaxis against perioperative VTE, indications for immediate intervention (threat to life or limb), indications for urgent intervention, and management of nonemergent VTE. Figures show a modified Caprini score questionnaire used at the University of Michigan to determine individual risk of VTE and the indicated prophylaxis regimen; Wells criteria for DVT and PE; phlegmasia cerulea dolens secondary to acute left iliofemoral DVT after thigh trauma; compression duplex ultrasonography of lower extremity veins; computed tomographic angiogram of the chest demonstrating a thrombus in the pulmonary artery, with extension into the right main pulmonary; management of PE according to Wells criteria findings; management of PE with right heart strain in cases of massive or submassive PE; treatment of DVT according to clinical scenario; a lower extremity venogram of a patient with May-Thurner syndrome and its subsequent endovascular treatment; and various examples of retrievable vena cava filters (not drawn to scale). Tables list initial clinical assessment for VTE, clinical scenarios possibly benefiting from prolonged anticoagulation after VTE, indications for laboratory investigation of secondary thrombophilia, venous thromboembolic risk accorded to hypercoagulable states, and Pulmonary Embolism Rule-out Criteria Score to avoid the need for D-dimer in patients suspected of having PE.   This review contains 11 highly rendered figures, 5 tables, and 167 references. Key words: anticoagulation; deep vein thrombosis; postthrombotic syndrome; pulmonary embolism; recurrent venous thromboembolism; thrombophilia; venous thromboembolism; PE; VTE; DVT 


Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 14-14
Author(s):  
Guillaume Roberge ◽  
Philip S. Wells

Background. Patients with end stage renal disease on dialysis are at higher risk of major bleeding and recurrent thrombosis and as such, treatment of acute venous thromboembolism (VTE) is challenging. Ideally, treatment would avoid inpatient admission as for most other patients with acute VTE. DOACs represent the easiest option but there are concerns over bioaccumulation increasing bleeding risk. Despite the absence of a standardized therapeutic range, anti-Xa trough level is measured to monitor potential DOACs bioaccumulation and thus, used for safety surveillance. Methods. We describe a case of a 51 yo female, 36 kg, on chronic hemodialysis with a provoked acute upper extremity deep vein thrombosis. Due to a lack of subcutaneous fat and calciphylaxis we were reluctant to use low molecular weight heparin and warfarin. She was treated with apixaban 2,5 mg twice daily for 6 weeks. Over 4 weeks, the apixaban anti-Xa trough levels were measured on dialysis days 12 hours after the morning dose. Results. The anti-Xa trough levels ranged from 58 to 84 ng/mL, similar to what is expected in patients with normal kidney function. There were no adverse events in the 3 months after anticoagulation initiation. Conclusion. We saw no evidence of bioaccumulation. This indicates a potential role for apixaban low doses in acute venous thromboembolism for patients on dialysis. Disclosures No relevant conflicts of interest to declare. OffLabel Disclosure: The use of Apixaban for treatment of acute venous thromboembolism in patient on dialysis has not been approved.


2020 ◽  
Author(s):  
Aziz S

Background: Venous Thromboembolism (VTE) is a clinical disorder characterized by the pathological occurrence of single or many thrombi developing mainly in the deep veins of the lower limbs and pulmonary veins but also other parts of the venous circulation, albeit less. A frequently occurring venous thrombosis is a deep vein thrombosis (DVT), which is the presence of thrombus in deep veins of the lower extremity. Once this clot fragment is swept off (embolism), it moves along with the venous blood and flows to the pulmonary vessels, where it may result in a clinically significant disorder called pulmonary thromboembolism (PTE). Thrombosis occurring in the superficial veins would only cause discomfort but generally with insignificant consequences. Aim: This study aimed to assess patterns and risk factors of venous thromboembolism (VTE) among patients in the Aseer region. Methodology: A record-based descriptive analysis (retrospective) was used in this study. The clinical study targeted the patients with venous thromboembolism (VTE including PE & DVT) either admitted with the diagnosis or complicated during the hospitalization period in Aseer Central Hospital during the period from January 2010 to June 2019. Data extracted using pre-structured data collection sheet. The extracted data were patients' bio-demographic data, VTE related data, treatment received and relevant complications of treatment, and patient’s follow-up history. Results: The study included total of 207 patients with thromboembolism. The age of patients was between 15 - 100 years old with the average age being 57.3+12.9 years. Approximately 58% of the patients were female. Deep vein thrombosis (DVT) was recorded in 60.4% of the cases and 27.5% of them were diagnosed with pulmonary embolism (PE) while 12.1% had both PE and DVT. Exact of 59.6% of cases with PE had immobilization history for 24 to 72 hours as compared to 31.2% of DVT and 44% of patients with mixed thromboembolism. DM was recorded among 14% of PE cases and 21.6% of DVT. Warfarin with Enoxaparin was the most frequently given treatment in total (23.2%). Heparin followed by Warfarin was the second most common treatment. Conclusions and recommendation: The study revealed that VTE was commonly reported especially DVT and PE among the recorded cases and it was bilateral in a considerable number of cases. Immobilization with chronic disease and morbid obesity was noted as the most significant predictor for VTE.


TH Open ◽  
2019 ◽  
Vol 03 (02) ◽  
pp. e171-e179 ◽  
Author(s):  
Nils Skajaa ◽  
Erzsébet Horváth-Puhó ◽  
Kasper Adelborg ◽  
Paolo Prandoni ◽  
Kenneth J. Rothman ◽  
...  

Background Many cardiovascular conditions exhibit seasonality in occurrence and mortality, but little is known about the seasonality of venous thromboembolism. Methods Using Danish registries, we identified all patients with deep vein thrombosis, pulmonary embolism, splanchnic vein thrombosis, cerebral vein thrombosis, and retinal vein thrombosis during 1977–2016. We tallied monthly deaths occurring within 90 days of the venous thromboembolism diagnosis. We estimated peak-to-trough ratios and timing of the peak of both diagnoses and deaths summed over all years of the study period. The departure from 1.0 of the peak-to-trough ratio measures the intensity of any seasonal pattern. Results We estimated a peak-to-trough ratio of 1.09 (95% confidence interval: 1.07–1.11) for deep vein thrombosis and 1.22 (1.19–1.24) for pulmonary embolism occurrence. The peak-to-trough ratios for splanchnic vein thrombosis, cerebral vein thrombosis, and retinal vein thrombosis occurrence were 1.10 (1.01–1.20), 1.19 (1.00–1.40), and 1.12 (1.07–1.17), respectively. The occurrence of all conditions peaked during winter or fall. In time trend analyses, the peak-to-trough ratio increased considerably for splanchnic vein thrombosis, cerebral vein thrombosis, and retinal vein thrombosis occurrence. In associated mortality, the peak-to-trough ratio for deep vein thrombosis was larger (1.15, 1.07–1.23) than that for pulmonary embolism (1.04, 1.01–1.08). Discussion Excess winter risks were modest, but more marked for pulmonary embolism occurrence than for deep vein thrombosis occurrence. The seasonal pattern intensified throughout the study period for splanchnic vein thrombosis, cerebral vein thrombosis, and retinal vein thrombosis. The winter peak in mortality following pulmonary embolism was smaller than that for deep vein thrombosis.


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