National Healthcare Quality and Disparities Report
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- Adverse Drug Events (ADE) (3)
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- (-) Blood Clots (26)
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- Electronic Health Records (EHRs) (2)
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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 25 of 26 Research Studies DisplayedSchlick CJR, Merkow RP, Yang AD
Post-discharge venous thromboembolism after pancreatectomy for malignancy: predicting risk based on preoperative, intraoperative, and postoperative factors.
Extended chemoprophylaxis is recommended for high-risk patients following pancreatectomy for malignancy. However, quantifying risk remains difficult. In this study, the investigators sought to (a) identify factors associated with post-discharge venous thromboembolism (VTE) following pancreatectomy for malignancy and (b) develop a post-discharge VTE risk calculator to identify high-risk patients. The investigators concluded that preoperative, intraoperative, and postoperative factors were associated with post-discharge VTE following pancreatectomy for malignancy.
AHRQ-funded; HS026385.
Citation: Schlick CJR, Merkow RP, Yang AD .
Post-discharge venous thromboembolism after pancreatectomy for malignancy: predicting risk based on preoperative, intraoperative, and postoperative factors.
J Surg Oncol 2020 Sep 15;122(4):675-83. doi: 10.1002/jso.26046..
Keywords: Cancer, Surgery, Treatments, Blood Clots, Risk
Utter GH, Dhillon TS, Danielsen BH
Use of statewide administrative data to assess clinical outcomes: a retrospective cohort study of therapeutic anticoagulation for isolated calf vein thrombosis.
Single-center comparative effectiveness studies evaluating outcomes that can occur posthospitalization may become biased if outcomes diagnosed at other facilities are not ascertained. Administrative datasets that link patients' records across facilities may improve outcome ascertainment. The purpose of this study was to determine whether use of linked administrative data significantly augmented thromboembolic outcome ascertainment. The investigators concluded that use of linked hospital administrative data augmented detection of outcomes but imperfect linkage, nonspecific diagnoses, and documentation/coding errors introduced uncertainty regarding the accuracy of outcome ascertainment.
AHRQ-funded; HS022236.
Citation: Utter GH, Dhillon TS, Danielsen BH .
Use of statewide administrative data to assess clinical outcomes: a retrospective cohort study of therapeutic anticoagulation for isolated calf vein thrombosis.
Med Care 2020 Jul;58(7):658-62. doi: 10.1097/mlr.0000000000001347.
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Keywords: Blood Clots, Blood Thinners, Medication, Research Methodologies, Patient-Centered Outcomes Research
Yang AD, Hewitt DB, Blay E
Multi-institution evaluation of adherence to comprehensive postoperative VTE chemoprophylaxis.
The aims of this study were to: (1) measure the rate of failure to provide defect-free postoperative venous thromboembolism (VTE) chemoprophylaxis, (2) identify reasons for failure to provide defect-free VTE chemoprophylaxis, and (3) examine patient- and hospital-level factors associated with failure. The investigators concluded that in contrast to SCIP-VTE-2, their novel quality measure unmasked VTE chemoprophylaxis failures in 18% of colectomies. They found that most failures were due to patient refusals or ordering errors.
AHRQ-funded; HS024516.
Citation: Yang AD, Hewitt DB, Blay E .
Multi-institution evaluation of adherence to comprehensive postoperative VTE chemoprophylaxis.
Ann Surg 2020 Jun;271(6):1072-79. doi: 10.1097/sla.0000000000003124..
Keywords: Patient Adherence/Compliance, Guidelines, Blood Clots, Blood Thinners, Medication, Medication: Safety, Patient Safety, Adverse Events
Richardson S, Cohen S, Khan S
Higher imaging yield when clinical decision support is used.
Increased utilization of CT pulmonary angiography (CTPA) for the evaluation of pulmonary embolism has been associated with decreasing diagnostic yields and rising concerns about the harms of unnecessary testing. The objective of this study was to determine whether clinical decision support (CDS) use would be associated with increased imaging yields after controlling for selection bias.
AHRQ-funded; HS022061.
Citation: Richardson S, Cohen S, Khan S .
Higher imaging yield when clinical decision support is used.
J Am Coll Radiol 2020 Apr;17(4):496-503. doi: 10.1016/j.jacr.2019.11.021.
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Keywords: Clinical Decision Support (CDS), Imaging, Diagnostic Safety and Quality, Shared Decision Making, Blood Clots
de Meireles A, Carlin AM, Cain-Nielsen A
Association between surgeon practice knowledge and venous thromboembolism.
Venous thromboembolism (VTE) is the most common cause of mortality following bariatric surgery. This study aimed to determine practice patterns of VTE chemoprophylaxis among bariatric surgeons participating in a large statewide quality collaborative and compare the results of surgeon self-reported chemoprophylaxis prescription practices versus actual data from abstracted charts. They administered a 13-question survey to 66 surgeons to reveal VTE practice patterns such as medication type, dosage, timing, duration, and level of trainee involvement. They also examined the charts of all patients who had developed VTE during the study period and 15 other randomly selected patient charts per site. There was found to be a greater discordance between surgeon self-reported and actual perioperative VTE prophylaxis, but there was no significant discordance postoperatively. Greater perioperative discordance is associated with significantly increased risk of VTE.
AHRQ-funded; HS02362; HS024403.
Citation: de Meireles A, Carlin AM, Cain-Nielsen A .
Association between surgeon practice knowledge and venous thromboembolism.
Obes Surg 2020 Feb 16;30(6):2274-79. doi: 10.1007/s11695-020-04468-6..
Keywords: Surgery, Obesity: Weight Management, Obesity, Blood Clots, Practice Patterns, Provider: Physician, Provider
Abraham NS, Noseworthy PA, Inselman J
Risk of gastrointestinal bleeding increases with combinations of antithrombotic agents and patient age.
This study investigated whether age of patient and time frame increased the risk of gastrointestinal bleeding (GIB) in elderly patients being treated with anticoagulants, antiplatelets, or a combination of both therapies. This retrospective analysis used nationwide claims data from privately insured and Medicare Advantage enrollees who received anticoagulant and/or antiplatelet agents from October 1, 2010, through May 31, 2017. The final cohort included 311,211 patients who had a primary diagnosis of atrial fibrillation, ischemic heart disease, or venous thromboembolism. There was no significant different in the proportion of patients with GIB after anticoagulant or antiplatelet monotherapy, but combination therapy increased GIB risk. Advancing age was also associated with increasing 1-year probability of FIB, especially patients older than 75 years taking combination therapy.
AHRQ-funded; HS025402.
Citation: Abraham NS, Noseworthy PA, Inselman J .
Risk of gastrointestinal bleeding increases with combinations of antithrombotic agents and patient age.
Clin Gastroenterol Hepatol 2020 Feb;18(2):337-46.e19. doi: 10.1016/j.cgh.2019.05.017..
Keywords: Adverse Drug Events (ADE), Medication, Adverse Events, Medication: Safety, Elderly, Blood Thinners, Blood Clots, Digestive Disease and Health
Owodunni OP, Haut ER, Shaffer DL
Using electronic health record system triggers to target delivery of a patient-centered intervention to improve venous thromboembolism prevention for hospitalized patients: is there a differential effect by race?
Venous thromboembolism (VTE) is a leading cause of preventable harm, and disparities observed in prevention practices. In this study, the investigators examined the impact of a patient-centered VTE education bundle on the non-administration of preventive prophylaxis by race. The investigators found that the patient education materials, developed collaboratively with a diverse group of patients, improved patient's understanding and the importance of VTE prevention through prophylaxis.
AHRQ-funded; HS024547.
Citation: Owodunni OP, Haut ER, Shaffer DL .
Using electronic health record system triggers to target delivery of a patient-centered intervention to improve venous thromboembolism prevention for hospitalized patients: is there a differential effect by race?
PLoS One 2020 Jan 16;15(1):e0227339. doi: 10.1371/journal.pone.0227339..
Keywords: Electronic Health Records (EHRs), Health Information Technology (HIT), Patient-Centered Healthcare, Blood Clots, Prevention, Inpatient Care, Health Literacy, Education: Patient and Caregiver
Schlick CJR, Liu JY, Yang AD
Pre-operative, intra-operative, and post-operative factors associated with post-discharge venous thromboembolism following colorectal cancer resection.
Venous thromboembolism (VTE) is the most common preventable cause of 30-day post-operative mortality, with many events occurring after hospital discharge. High-level evidence supports post-discharge VTE chemoprophylaxis following abdominal/pelvic cancer resection; however, some studies support a more tailored approach. The objectives of this study were to (1) identify risk factors associated with post-discharge VTE in a large cohort of patients undergoing colorectal cancer resection and (2) develop a post-discharge VTE risk calculator.
AHRQ-funded; HS024516; HS026385.
Citation: Schlick CJR, Liu JY, Yang AD .
Pre-operative, intra-operative, and post-operative factors associated with post-discharge venous thromboembolism following colorectal cancer resection.
J Gastrointest Surg 2020 Jan;24(1):144-54. doi: 10.1007/s11605-019-04354-2..
Keywords: Cancer: Colorectal Cancer, Cancer, Surgery, Blood Clots, Adverse Events, Risk, Hospital Discharge
Repplinger MD, Bracken RL, Patterson BW
Downstream imaging utilization after mr angiography versus CT angiography for the initial evaluation of pulmonary embolism.
This single-center, retrospective, observational study examined the use of chest CT or MR for ED patients with MR angiography (MRA) negative for PE during April 2008 to March 2013. The investigators concluded that when comparing patients initially undergoing MRA versus CTA for the evaluation of PE, there was no difference in downstream chest CT or MR use at 1 year.
AHRQ-funded; HS024558; HS024342.
Citation: Repplinger MD, Bracken RL, Patterson BW .
Downstream imaging utilization after mr angiography versus CT angiography for the initial evaluation of pulmonary embolism.
J Am Coll Radiol 2018 Dec;15(12):1692-97. doi: 10.1016/j.jacr.2018.04.017..
Keywords: Blood Clots, Emergency Department, Imaging
Borre ED, Goode A, Raitz G
Predicting thromboembolic and bleeding event risk in patients with non-valvular atrial fibrillation: a systematic review.
This systematic review compared the strength of tools to predict stroke and bleeding risk in patients with atrial fibrillation (AF) taking blood thinners. Sixty-one studies were found to predict thromboembolic risk and 38 to predict bleeding risk.
AHRQ-funded; 290201500004I.
Citation: Borre ED, Goode A, Raitz G .
Predicting thromboembolic and bleeding event risk in patients with non-valvular atrial fibrillation: a systematic review.
Thromb Haemost 2018 Dec;118(12):2171-87. doi: 10.1055/s-0038-1675400..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Stroke, Blood Clots, Blood Thinners, Medication, Adverse Drug Events (ADE), Adverse Events, Risk, Patient-Centered Outcomes Research, Evidence-Based Practice
Murphy PB, Vogt KN, Lau BD
Venous thromboembolism prevention in emergency general surgery: a review.
Operatively and nonoperatively treated emergency general surgery patients are at a comparatively high risk of venous thromboembolism (VTE). This review found that, despite gaps in existing literature with respect to this increasing patient population, successful best practices can be applied. Best practices include assessment of VTE risk, optimal prophylaxis, and physician, nurse, and patient education regarding the use of mechanical and pharmacologic VTE prophylaxis and institutional policies.
AHRQ-funded; HS024547.
Citation: Murphy PB, Vogt KN, Lau BD .
Venous thromboembolism prevention in emergency general surgery: a review.
JAMA Surg 2018 May;153(5):479-86. doi: 10.1001/jamasurg.2018.0015..
Keywords: Blood Clots, Surgery, Emergency Department, Adverse Events, Prevention, Patient Safety
Wang SV, Huybrechts KF, Fischer MA
Generalized boosted modeling to identify subgroups where effect of dabigatran versus warfarin may differ: an observational cohort study of patients with atrial fibrillation.
The purpose of this study was to explore generalized boosted modeling (GBM) as a method for identifying subgroups with greater benefit or harm with dabigatran versus warfarin for treatment of atrial fibrillation. The investigators concluded that dabigatran's superiority to warfarin at prevention of thromboembolism may be greater in secondary than primary prevention. They indicated that in practice, secondary prevention patients are more often treated with warfarin.
AHRQ-funded; HS022193.
Citation: Wang SV, Huybrechts KF, Fischer MA .
Generalized boosted modeling to identify subgroups where effect of dabigatran versus warfarin may differ: an observational cohort study of patients with atrial fibrillation.
Pharmacoepidemiol Drug Saf 2018 Apr;27(4):383-90. doi: 10.1002/pds.4395..
Keywords: Blood Clots, Blood Thinners, Cardiovascular Conditions, Comparative Effectiveness, Evidence-Based Practice, Heart Disease and Health, Medication, Outcomes, Patient-Centered Outcomes Research, Prevention
Lau BD, Streiff MB, Pronovost PJ
Venous thromboembolism quality measures fail to accurately measure quality.
This study reviewed a large number of international quality measures for venous thromboembolism (VTE) prevention. Researchers discovered that none of them accurately characterize VTE prevention methods or outcomes in hospitalized patients. They describe an ideal, defect-free VTE prevention process.
AHRQ-funded; HS024547.
Citation: Lau BD, Streiff MB, Pronovost PJ .
Venous thromboembolism quality measures fail to accurately measure quality.
Circulation 2018 Mar 20;137(12):1278-84. doi: 10.1161/circulationaha.116.026897..
Keywords: Blood Clots, Hospitalization, Prevention, Quality Indicators (QIs), Quality Measures
Lau BD, Streiff MB, Kraus PS
Missed doses of venous thromboembolism (VTE) prophylaxis at community hospitals: cause for alarm.
This study examined the rate of missed doses of venous thromboembolism (VTE) prophylaxis at community hospitals in the Washington, DC and greater Baltimore metropolitan areas. This retrospective study included four hospitals within the Johns Hopkins Health System. Non-administration of VTE prophylaxis was found 10.9% to 15.0% of the time among the three community hospitals. About 43.6% of patients missed at least one dose in all four hospitals. The investigators weren’t able to categorize patients by specialty, however it has been reported that more doses are missed with medically ill patients than other hospitalized patients.
AHRQ-funded; HS024547.
Citation: Lau BD, Streiff MB, Kraus PS .
Missed doses of venous thromboembolism (VTE) prophylaxis at community hospitals: cause for alarm.
J Gen Intern Med 2018 Jan;33(1):19-20. doi: 10.1007/s11606-017-4203-y..
Keywords: Blood Clots, Prevention, Blood Thinners, Patient Adherence/Compliance, Medication, Hospitals
Cramer JD, Dilger AE, Schneider A
Risk of venous thromboembolism among otolaryngology patients vs general surgery and plastic surgery patients.
Researchers examined the rate of venous thromboembolism (VTE) for various otolaryngology procedures compared with an established average-risk field and low-risk field. They identified a high-risk group for VTE in otolaryngology; however, they found that most patients undergoing otolaryngology procedures are at low risk of VTE, indicating that guidelines for a low-risk population could be adapted to otolaryngology. The authors concluded that patients undergoing high-risk otolaryngology procedures should be considered as candidates for more aggressive VTE prophylaxis.
AHRQ-funded; HS023011.
Citation: Cramer JD, Dilger AE, Schneider A .
Risk of venous thromboembolism among otolaryngology patients vs general surgery and plastic surgery patients.
JAMA Otolaryngol Head Neck Surg 2018 Jan;144(1):9-17. doi: 10.1001/jamaoto.2017.1768..
Keywords: Surgery, Blood Clots, Risk, Adverse Events, Patient Safety
Lau BD, Shaffer DL, Hobson DB
Effectiveness of two distinct web-based education tools for bedside nurses on medication administration practice for venous thromboembolism prevention: a randomized clinical trial.
Effectiveness of two distinct web-based education tools for bedside nurses on medication administration practice for venous thromboembolism prevention: a randomized clinical trial.
AHRQ-funded; HS024547.
Citation: Lau BD, Shaffer DL, Hobson DB .
Effectiveness of two distinct web-based education tools for bedside nurses on medication administration practice for venous thromboembolism prevention: a randomized clinical trial.
PLoS One 2017 Aug 16;12(8):e0181664. doi: 10.1371/journal.pone.0181664.
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Keywords: Blood Clots, Education: Continuing Medical Education, Medication, Nursing, Prevention, Provider: Nurse, Web-Based, Practice Patterns
Jones CE, Hollis RH, Gullick AA
Venous thromboembolic events: how low can you go?
This study evaluated postoperative venous thromboembolism (VTE) chemical prophylaxis adherence to assess the preventability of VTEs. It found that nearly half of patients who experienced postoperative VTEs received appropriate guideline-driven care. Most interruptions in chemical prophylaxis were justified medically. This further questions the preventability of postoperative VTEs and the utility of this outcome as a valid measure of hospital quality.
AHRQ-funded; HS013852.
Citation: Jones CE, Hollis RH, Gullick AA .
Venous thromboembolic events: how low can you go?
Am J Surg 2017 Apr;213(4):706-10. doi: 10.1016/j.amjsurg.2016.10.037.
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Keywords: Adverse Events, Blood Clots, Blood Thinners, Patient-Centered Outcomes Research, Prevention
Beckman MG, Abe K, Barnes K
AHRQ Author: Brady PJ
Strategies and partnerships toward prevention of healthcare-associated venous thromboembolism.
This issue of the Journal of Hospital Medicine showcases the initiatives of several of the CDC’s healthcare-associated venous thromboembolism (HA-VTE) prevention champions. The CDC and AHRQ are partnering to disseminate and promote these best practices. In addition to this challenge, the CDC, AHRQ and the Joint Commission Center for Transforming Healthcare are working on activities and programs dedicated to improving prevention of HA-VTE. They are summarized in the article.
AHRQ-authored.
Citation: Beckman MG, Abe K, Barnes K .
Strategies and partnerships toward prevention of healthcare-associated venous thromboembolism.
J Hosp Med 2016 Dec;11 Suppl 2:S5-s7. doi: 10.1002/jhm.2659.
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Keywords: Prevention, Blood Clots, Quality Improvement, Guidelines, Adverse Events
Lau BD, Haut ER, Hobson DB
ICD-9 code-based venous thromboembolism performance targets fail to measure up.
Suboptimal prevention practices have prompted payers to consider hospital-associated Venous thromboembolism (VTE) as a potentially preventable condition for which financial incentives or penalties exist to drive practice improvement. The authors reviewed a subset of hospital-associated VTE that were identified by ICD-9 codes used by a state-run pay-for-performance quality improvement program and discuss their findings.
AHRQ-funded; HS017952.
Citation: Lau BD, Haut ER, Hobson DB .
ICD-9 code-based venous thromboembolism performance targets fail to measure up.
Am J Med Qual 2016 Sep;31(5):448-53. doi: 10.1177/1062860615583547.
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Keywords: Healthcare-Associated Infections (HAIs), Quality Indicators (QIs), Prevention, Hospitals, Quality Improvement, Blood Clots, Payment, Provider Performance
Farrow NE, Lau BD, JohnBull EA
Is the meaningful use venous thromboembolism VTE-6 measure meaningful? A retrospective analysis of one hospital's VTE-6 cases.
The researchers assessed the validity of the Meaningful Use VTE-6 measure by reviewing the quality of venous thromboembolism (VTE) prophylaxis provided to patients. Sixty percent of the patients identified as having sustained potentially preventable VTE were false positives. For the remaining forty percent, VTE was considered to be truly potentially preventable and those patients therefore provided targets for quality improvement measures.
AHRQ-funded; HS017952.
Citation: Farrow NE, Lau BD, JohnBull EA .
Is the meaningful use venous thromboembolism VTE-6 measure meaningful? A retrospective analysis of one hospital's VTE-6 cases.
Jt Comm J Qual Patient Saf 2016 Sep;42(9):410-6.
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Keywords: Blood Clots, Quality Improvement, Quality Measures, Quality Measures, Electronic Health Records (EHRs)
Poonawalla IB, Piller LB, Lairson DR
Use of hematopoietic growth factors and risk of thromboembolic and pulmonary toxicities in elderly patients with advanced ovarian cancer.
This study evaluated the risk of thromboembolic and pulmonary toxicities associated with hematopoietic growth factor (HGF) use (i.e., erythropoietin-stimulating agent [ESA] and/or colony-stimulating factor [CSF]) in a community-dwelling cohort of elderly patients with advanced ovarian cancer. An increased risk of thromboembolic events was observed in elderly patients with ovarian cancer who received ESA + CSF.
AHRQ-funded; HS018956.
Citation: Poonawalla IB, Piller LB, Lairson DR .
Use of hematopoietic growth factors and risk of thromboembolic and pulmonary toxicities in elderly patients with advanced ovarian cancer.
Womens Health Issues 2016 Sep-Oct;26(5):574-83. doi: 10.1016/j.whi.2016.05.007.
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Keywords: Adverse Events, Blood Clots, Elderly, Cancer: Ovarian Cancer, Risk
Wang SV, Franklin JM, Glynn RJ
Prediction of rates of thromboembolic and major bleeding outcomes with dabigatran or warfarin among patients with atrial fibrillation: new initiator cohort study.
The authors compared stratified event rates from randomized controlled trials with predicted event rates from models developed in observational data and assessed their ability to accurately capture observed rates of thromboembolism and major bleeding for patients treated with dabigatran or warfarin as part of routine care. They found that estimated rates of thromboembolism under dabigatran or warfarin treatment in randomized controlled trials were close to observed rates in routine care patients, but that rates of major bleeding were underestimated. They concluded that models developed in routine care patients can provide accurate, tailored estimates of risk and benefit under alternative treatment to enhance patient centered care.
AHRQ-funded; HS022193.
Citation: Wang SV, Franklin JM, Glynn RJ .
Prediction of rates of thromboembolic and major bleeding outcomes with dabigatran or warfarin among patients with atrial fibrillation: new initiator cohort study.
BMJ 2016 May 24;353:i2607. doi: 10.1136/bmj.i2607.
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Keywords: Blood Thinners, Adverse Drug Events (ADE), Blood Clots, Patient Safety, Medication
Jindai K, Sterkel AK, Reed KD
Limb embolism in a 52-year-old woman.
In response to a photo quiz, the authors make the following diagnosis: arterial thrombus caused by Histoplasma capsulatum deriving from native valve endocarditis caused by the same organism. Various aspects of the case are discussed.
AHRQ-funded; HS022465; HS023779.
Citation: Jindai K, Sterkel AK, Reed KD .
Limb embolism in a 52-year-old woman.
Clin Infect Dis 2016 May 15;62(10):1320-1. doi: 10.1093/cid/ciw081.
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Keywords: Blood Clots, Care Management, Case Study, Diagnostic Safety and Quality, Patient Safety
Grant PJ, Greene MT, Chopra V
Assessing the Caprini score for risk assessment of venous thromboembolism in hospitalized medical patients.
The authors examined how well the Caprini risk assessment model predicts venous thromboembolism in hospitalized medical patients. They concluded that the Caprini risk assessment model was unable to identify a subset of medical patients who benefit from pharmacologic prophylaxis.
AHRQ-funded; HS022835.
Citation: Grant PJ, Greene MT, Chopra V .
Assessing the Caprini score for risk assessment of venous thromboembolism in hospitalized medical patients.
Am J Med 2016 May;129(5):528-35. doi: 10.1016/j.amjmed.2015.10.027.
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Keywords: Adverse Events, Blood Clots, Hospitalization, Risk, Patient Safety
Du XL, Zhang Y, Hardy D
Associations between hematopoietic growth factors and risks of venous thromboembolism, stroke, ischemic heart disease and myelodysplastic syndrome: findings from a large population-based cohort of women with breast cancer.
The researchers sought to determine the risk of venous thromboembolism (VTE), stroke, ischemic heart disease, and myelodysplastic syndrome (MDS) in association with the receipt of colony-stimulating factors (CSFs) and/or erythropoiesis-stimulating agents (ESAs) in women with breast cancer. They found that receipts of CSFs and ESAs were significantly associated with an increased risk of VTE in women with breast cancer.
AHRQ-funded; HS018956.
Citation: Du XL, Zhang Y, Hardy D .
Associations between hematopoietic growth factors and risks of venous thromboembolism, stroke, ischemic heart disease and myelodysplastic syndrome: findings from a large population-based cohort of women with breast cancer.
Cancer Causes Control 2016 May;27(5):695-707. doi: 10.1007/s10552-016-0742-5.
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Keywords: Blood Clots, Cancer: Breast Cancer, Cardiovascular Conditions, Risk, Stroke