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Arnold MJ. Thromboembolic Disease. Prim Care 2024; 51:65-82. [PMID: 38278574 DOI: 10.1016/j.pop.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
Venous thromboembolism (VTE) encompasses deep vein thrombosis and pulmonary embolism, both of which can present on a spectrum from subtle symptoms to life- and limb-threatening emergencies. Some risk factors for VTE overlap cardiovascular risk factors and statin therapy can somewhat reduce the VTE risk. When presentations are not life-threatening, clinical prediction scores using the Well's criteria are best used to determine diagnostic testing. The mainstay of VTE treatment is anticoagulant therapy, although life- and limb-threatening presentations can also require thrombolytic therapy.
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Affiliation(s)
- Michael J Arnold
- Department of Family Medicine, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 40814, USA.
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2
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Götzinger F, Lauder L, Sharp ASP, Lang IM, Rosenkranz S, Konstantinides S, Edelman ER, Böhm M, Jaber W, Mahfoud F. Interventional therapies for pulmonary embolism. Nat Rev Cardiol 2023; 20:670-684. [PMID: 37173409 PMCID: PMC10180624 DOI: 10.1038/s41569-023-00876-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/30/2023] [Indexed: 05/15/2023]
Abstract
Pulmonary embolism (PE) is the leading cause of in-hospital death and the third most frequent cause of cardiovascular death. The clinical presentation of PE is variable, and choosing the appropriate treatment for individual patients can be challenging. Traditionally, treatment of PE has involved a choice of anticoagulation, thrombolysis or surgery; however, a range of percutaneous interventional technologies have been developed that are under investigation in patients with intermediate-high-risk or high-risk PE. These interventional technologies include catheter-directed thrombolysis (with or without ultrasound assistance), aspiration thrombectomy and combinations of the aforementioned principles. These interventional treatment options might lead to a more rapid improvement in right ventricular function and pulmonary and/or systemic haemodynamics in particular patients. However, evidence from randomized controlled trials on the safety and efficacy of these interventions compared with conservative therapies is lacking. In this Review, we discuss the underlying pathophysiology of PE, provide assistance with decision-making on patient selection and critically appraise the available clinical evidence on interventional, catheter-based approaches for PE treatment. Finally, we discuss future perspectives and unmet needs.
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Affiliation(s)
- Felix Götzinger
- Clinic of Cardiology, Angiology and Intensive Care Medicine, University Hospital Homburg, Saarland University, Homburg, Germany
| | - Lucas Lauder
- Clinic of Cardiology, Angiology and Intensive Care Medicine, University Hospital Homburg, Saarland University, Homburg, Germany
| | - Andrew S P Sharp
- Department of Cardiology, University Hospital of Wales, Cardiff, UK
- Cardiff University, Cardiff, UK
| | - Irene M Lang
- Department of Cardiology, Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Stephan Rosenkranz
- Department of Cardiology - Internal Medicine III, Cologne University Heart Center, Cologne, Germany
- Cologne Cardiovascular Research Center (CCRC), Cologne University Heart Center, Cologne, Germany
| | - Stavros Konstantinides
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
- Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Elazer R Edelman
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Michael Böhm
- Clinic of Cardiology, Angiology and Intensive Care Medicine, University Hospital Homburg, Saarland University, Homburg, Germany
| | - Wissam Jaber
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Felix Mahfoud
- Clinic of Cardiology, Angiology and Intensive Care Medicine, University Hospital Homburg, Saarland University, Homburg, Germany.
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
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3
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Jørgensen CT, Tavoly M, Førsund E, Pettersen HH, Tjønnfjord E, Ghanima W, Brækkan SK. Incidence of bleeding and recurrence in isolated distal deep vein thrombosis: findings from the Venous Thrombosis Registry in Østfold Hospital. J Thromb Haemost 2023; 21:2824-2832. [PMID: 37394122 DOI: 10.1016/j.jtha.2023.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/05/2023] [Accepted: 06/22/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND Isolated distal deep vein thrombosis (IDDVT) is a common presentation of deep vein thrombosis. There are limited data on the long-term risk of recurrence after IDDVT. OBJECTIVES We aimed to determine the short- and long-term incidence of venous thrombosis (VTE) recurrence after cessation of anticoagulation and the 3-month incidence of bleeding during anticoagulant treatment in patients with IDDVT. METHODS Between January 2005 and May 2020, 475 patients with IDDVT and without active cancer were identified from the Venous Thrombosis Registry in Østfold Hospital, which is an ongoing registry of consecutive patients with VTE at Østfold Hospital, Norway. Major and clinically relevant, nonmajor bleeding as well as recurrent VTE were registered, and the cumulative incidences of these events were assessed. RESULTS The median age of the patients was 59 years (IQR, 48-72 years), 243 (51%) patients were women, and 175 events (36.8%) were classified as unprovoked. The 1-, 5-, and 10-year cumulative incidences of recurrent VTE were 5.6% (95% CI, 3.7-8.4), 14.7% (95% CI, 11.1-19.4), and 27.2% (95% CI, 21.1-34.5), respectively. The recurrence rates were higher for unprovoked IDDVT than for provoked IDDVT. Among the recurrent events, 18 (29%) were pulmonary embolisms and 21 (33%) were proximal deep vein thromboses. The 3-month cumulative incidence of major bleeding was 1.5% (95% CI, 0.7-3.1) overall and 0.8% (95% CI, 0.2-3.1) when restricted to patients treated with direct oral anticoagulants. CONCLUSION Despite initial treatment, the long-term risk of VTE recurrence after first-time IDDVT is high. The bleeding rates during anticoagulation, particularly with direct oral anticoagulants, were acceptably low.
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Affiliation(s)
- Camilla Tøvik Jørgensen
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Mazdak Tavoly
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway; Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Eli Førsund
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway
| | | | - Eirik Tjønnfjord
- Department of Emergency Medicine, Østfold Hospital, Sarpsborg, Norway
| | - Waleed Ghanima
- Department of Research, Østfold Hospital, Sarpsborg, Norway; Clinic of Internal Medicine, Østfold Hospital Sarpsborg, Sarpsborg, Norway; Department of Hematology, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Sigrid Kufaas Brækkan
- Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway; Thrombosis Research Center, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
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4
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Rosano GM, Rodriguez‐Martinez MA, Spoletini I, Regidor PA. Obesity and contraceptive use: impact on cardiovascular risk. ESC Heart Fail 2022; 9:3761-3767. [PMID: 36103980 PMCID: PMC9773763 DOI: 10.1002/ehf2.14104] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 06/29/2022] [Accepted: 07/28/2022] [Indexed: 01/19/2023] Open
Abstract
Obesity and oestrogen containing contraceptive products are well-known independent cardiovascular risk factors. However, a significant number of obese women continue to receive prescriptions of hormonal products that contain oestrogens for their contraception. We have conducted a narrative review to discuss the latest evidence, ongoing research, and controversial issues on the synergistic effect of obesity and contraceptive use, in terms of cardiovascular risk. There is compelling evidence of an interplay between obesity and contraception in increasing cardiovascular risk. Women who present both obesity and use of combined oral contraceptives (COCs) have a greater risk (between 12 and 24 times) to develop venous thromboembolism than non-obese non-COC users. Data here discussed offer new insights to increase clinicians' awareness on the cardiovascular risk in the clinical management of obese women. The synergistic effect of obesity and COCs on deep venous thrombosis risk must be considered when prescribing hormonal contraception. Progestin-only products are a safer alternative to COCs in patients with overweight or obesity. Obese women taking contraceptives should be viewed as an 'at risk' population, and as such, they should receive advice to change their lifestyle, avoiding other cardiovascular risk factors, as a form of primary prevention. This indication should be extended to young women, as data show that COCs should be avoided in obese women of any age.
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Affiliation(s)
- Giuseppe M.C. Rosano
- Centre for Clinical and Basic Research, Department of Medical SciencesIRCCS San Raffaele PisanaRomeItaly
| | | | - Ilaria Spoletini
- Centre for Clinical and Basic Research, Department of Medical SciencesIRCCS San Raffaele PisanaRomeItaly
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Kulka HC, Zeller A, Fornaro J, Wuillemin WA, Konstantinides S, Christ M. Acute Pulmonary Embolism–Its Diagnosis and Treatment From a Multidisciplinary Viewpoint. DEUTSCHES ARZTEBLATT INTERNATIONAL 2021; 118:618-628. [PMID: 34382576 DOI: 10.3238/arztebl.m2021.0226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 12/31/2020] [Accepted: 04/28/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Physicians from many different specialties see patients suffering from acute pulmonary embolism (PE), which has an incidence of 39-115 cases per 100 000 persons per year. Because PE can be life-threatening, a rapid, targeted response is essential. METHODS This review is based on pertinent publications retrieved by a selective literature search of international databases, with particular attention to current guidelines and expert opinions. RESULTS Whenever PE is suspected, clinical assessment tools must be applied for risk stratification and diagnostic evaluation. The PERC (Pulmonary Embolism Rule-out Criteria) and the YEARS algorithm lead to more effective diagnosis. For hemodynamically unstable patients, bedside echocardiography is of high value and enables risk stratification. New oral anticoagulants have fewer hemorrhagic complications than vitamin K antagonists and are not inferior to them with respect to the risk of recurrent PE (hazard ratio 0.84-1.09). The duration of anticoagulation is set according to the risk of recurrence. Systemic thrombolysis is recommended for patients with a high-risk PE, in whom it significantly reduces mortality (odds ratio 0.53, number needed to treat 59). Surgical or interventional techniques can be considered if thrombolysis is contraindicated or unsuccessful. CONCLUSION Newly introduced diagnostic aids and algorithms simplify the diagnosis and treatment of acute PE while continuing to assure a high degree of patient safety.
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Konstantinides SV, Meyer G, Becattini C, Bueno H, Geersing GJ, Harjola VP, Huisman MV, Humbert M, Jennings CS, Jiménez D, Kucher N, Lang IM, Lankeit M, Lorusso R, Mazzolai L, Meneveau N, Ní Áinle F, Prandoni P, Pruszczyk P, Righini M, Torbicki A, Van Belle E, Zamorano JL. 2019 ESC Guidelines for the diagnosis and management of acute pulmonary embolism developed in collaboration with the European Respiratory Society (ERS). Eur Heart J 2021; 41:543-603. [PMID: 31504429 DOI: 10.1093/eurheartj/ehz405] [Citation(s) in RCA: 1953] [Impact Index Per Article: 651.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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O’Rourke E, Toolan S, Bedos A, Tierney A, Jennings C, O’Neill A, Áinle FN, Kevane B. “What will happen in the future?” A personal VTE journey. THROMBOSIS UPDATE 2020. [DOI: 10.1016/j.tru.2020.100013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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8
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Yare K, Woodward M. Hormone Therapy and Effects on Sporadic Alzheimer’s Disease in Postmenopausal Women: Importance of Nomenclature. J Alzheimers Dis 2020; 73:23-37. [DOI: 10.3233/jad-190896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Katrine Yare
- Austin Health, Heidelberg Repatriation Hospital, Victoria, Australia
| | - Michael Woodward
- Austin Health, Heidelberg Repatriation Hospital, Victoria, Australia
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Konstantinides SV, Meyer G, Becattini C, Bueno H, Geersing GJ, Harjola VP, Huisman MV, Humbert M, Jennings CS, Jiménez D, Kucher N, Lang IM, Lankeit M, Lorusso R, Mazzolai L, Meneveau N, Áinle FN, Prandoni P, Pruszczyk P, Righini M, Torbicki A, Van Belle E, Zamorano JL. 2019 ESC Guidelines for the diagnosis and management of acute pulmonary embolism developed in collaboration with the European Respiratory Society (ERS). Eur Respir J 2019; 54:13993003.01647-2019. [DOI: 10.1183/13993003.01647-2019] [Citation(s) in RCA: 509] [Impact Index Per Article: 101.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Nascimento CMDB, Machado AMN, Guerra JCDC, Zlotnik E, Campêlo DHC, Kauffman P, Waksman H, Wolosker N, Podgaec S, Hamerschlak N. Consensus on the investigation of thrombophilia in women and clinical management. EINSTEIN-SAO PAULO 2019; 17:eAE4510. [PMID: 31432891 PMCID: PMC6707753 DOI: 10.31744/einstein_journal/2019ae4510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 01/21/2019] [Indexed: 12/04/2022] Open
Abstract
Objective To standardize the investigation and clinical management of women with laboratory and/or clinical abnormalities suggestive of thrombophilia, in order to optimize antithrombotic approach and indication of laboratory tests. Methodology A discussion was carried out among 107 physicians (gynecologists/obstetricians, hematologists and vascular surgeons) present at a forum held at the Hospital Israelita Albert Einstein, in São Paulo (SP), Brazil. As a minimum criterion, 80% agreement was established in the voting to each recommendation of conduct in the final document. The cases in which there was agreement below 80% were discussed again, reaching a consensual agreement of conduct for the document writing. Conclusion The standardization of an institutional consensus of suggestions of clinical approach contributes to a better management of the group to be evaluated and minimizes risks of intercurrent events. This was the first national consensus on the investigation of thrombophilia in women.
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Affiliation(s)
| | | | | | | | | | - Paulo Kauffman
- Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Hilton Waksman
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | | | - Sérgio Podgaec
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
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Plu-Bureau G, Sabbagh E, Hugon-Rodin J. [Hormonal contraception and vascular risk: CNGOF Contraception Guidelines]. ACTA ACUST UNITED AC 2018; 46:823-833. [PMID: 30389542 DOI: 10.1016/j.gofs.2018.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Indexed: 12/15/2022]
Abstract
Venous thromboembolism and arterial ischemic events are the main deleterious diseases associated with the use of combined hormonal contraceptives (CHC). Even though their composition has been substantially improved, the vascular risk persists with the most recent CHCs use. If the vascular risk associated with CHCs containing 50μg EE is significantly higher than with those containing less than 50μg, there is no evidence that the CHCs containing either 30 or 20μg of EE induce different venous risks. CHC containing gestodene, desogestrel, drospirenone or cyproterone acetate are associated with a higher risk of venous thrombosis compared with levonorgestrel-containing CHCs. CHC containing norgestimate are associated with similar venous thrombosis risk than CHC containing levonorgestrel. Venous thrombosis risk of non-oral routes of administration of CHC appears to be equivalent to the risk of CHC containing gestodene or desogestrel, but this result is based on a small number of epidemiological studies. Before prescribing a CHC, it is important to determine all vascular risk factors. Family history of ischemic arterial event or venous thromboembolism disease should be routinely sought before any CHC prescription. All CHCs are contraindicated in women with biological thrombophilia, in women with combined vascular risk factors, in women with first-degree family history of arterial or venous event (under age 50) as well as in women suffering of migraine with aura. Progestin-only contraceptives are not associated with vascular risk (arterial or venous) outside of medroxyprogesterone acetate. In women with higher vascular risk, progestin-only contraceptives (administered by oral, sous-cutaneous or intra-uterine routes) can be prescribed.
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Affiliation(s)
- G Plu-Bureau
- Unité de gynécologie endocrinienne, hôpital Port-Royal, 53, avenue de l'Observatoire, 75679 Paris 14, France; Université Paris Descartes, 75005 Paris, France; Inserm UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), 75000 Paris, France.
| | - E Sabbagh
- Unité de gynécologie endocrinienne, hôpital Port-Royal, 53, avenue de l'Observatoire, 75679 Paris 14, France
| | - J Hugon-Rodin
- Unité de gynécologie endocrinienne, hôpital Port-Royal, 53, avenue de l'Observatoire, 75679 Paris 14, France; Université Paris Descartes, 75005 Paris, France; Inserm UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), 75000 Paris, France
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12
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Risk of venous thromboembolism events in postmenopausal women using oral versus non-oral hormone therapy: A systematic review and meta-analysis. Thromb Res 2018; 168:83-95. [DOI: 10.1016/j.thromres.2018.06.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 05/22/2018] [Accepted: 06/16/2018] [Indexed: 11/19/2022]
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13
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Diagnosis and Exclusion of Pulmonary Embolism. Thromb Res 2018; 163:207-220. [DOI: 10.1016/j.thromres.2017.06.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 05/30/2017] [Accepted: 06/05/2017] [Indexed: 12/21/2022]
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Ahmed G, Elger W, Meece F, Nair HB, Schneider B, Wyrwa R, Nickisch K. A prodrug design for improved oral absorption and reduced hepatic interaction. Bioorg Med Chem 2017; 25:5569-5575. [PMID: 28886996 DOI: 10.1016/j.bmc.2017.08.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/09/2017] [Accepted: 08/15/2017] [Indexed: 11/26/2022]
Abstract
A series of estradiol-17-β esters of N-(p-sulfomylbenzamide)-amino acids were prepared and evaluated for systemic and hepatic estrogenic activity after oral administration in ovariectomized rats. The alkyl substitution at nitrogen of amino acids such as proline or N-methyl-alanine produced compounds that exhibit potent oral activity. The proline analog (EC508) was further evaluated along with 17β-estradiol (E2) and ethinyl-estradiol (EE) and compared their effects on the uterus, angiotensin and HDL-cholesterol after oral administration to ovariectomized female rats. Orally administered EC508 produced systemic estrogenic activity 10 times greater than EE and a 100 times higher activity than E2 with no influence on levels of angiotensin and HDL-cholesterol, whereas EE and E2 reduced the HDL-cholesterol and increased the angiotensine plasma levels. EC508 might offer significant advantages in indications like fertility control and HRT based on its high oral bioavailability and lack of hepatic estrogenicity.
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Affiliation(s)
- Gulzar Ahmed
- Evestra, Inc., 6410 Tri County Parkway, San Antonio, TX 78154, USA.
| | - Walter Elger
- Evestra, Inc., 6410 Tri County Parkway, San Antonio, TX 78154, USA
| | - Frederick Meece
- Evestra, Inc., 6410 Tri County Parkway, San Antonio, TX 78154, USA
| | - Hareesh B Nair
- Evestra, Inc., 6410 Tri County Parkway, San Antonio, TX 78154, USA
| | | | - Ralf Wyrwa
- Evestra, Inc., 6410 Tri County Parkway, San Antonio, TX 78154, USA
| | - Klaus Nickisch
- Evestra, Inc., 6410 Tri County Parkway, San Antonio, TX 78154, USA.
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Swanepoel AC, Visagie A, Pretorius E. Synthetic Hormones and Clot Formation. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2016; 22:878-886. [PMID: 27515365 DOI: 10.1017/s1431927616011478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Combined oral contraceptives (COCs), colloquially referred to as "the pill," have been regarded as a medical breakthrough, as they have improved the lives of countless women, from simplifying family planning to the treatment of acne, endometriosis, polycystic ovarian syndrome, and dysmenorrhea. Unfortunately, COC usage has been associated with an increased occurrence of venous thrombosis and therefore a systemic hypercoagulable state in susceptible females. Here we discuss the health risks of COC usage and use viscoelastic and morphological techniques to investigate the effect of different COC constituents on clot formation, particularly fibrin network packaging and whole blood viscoelasticity. Viscoelastic properties of whole blood showed gender-specific changes while morphological alterations were person-specific, regardless of gender. Using scanning electron microscopy and thromboelastography provides great insight regarding fibrin packaging and the development of a hypercoagulable state in high-risk individuals. We proposed a three-step approach where (1) an individual's coagulation profile baseline is determined, after which (2) the "ideal" combination of constituents is prescribed, and (3) the coagulation profile of the individual is monitored to assess possible risk of thrombosis. Only in following such an individualized patient-oriented approach will we be able to avoid the many health issues due to COC usage in susceptible females.
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Affiliation(s)
- Albe C Swanepoel
- Department of Physiology,School of Medicine, Faculty of Health Sciences,University of Pretoria,Private Bag x323,Pretoria, Arcadia0007,South Africa
| | - Amcois Visagie
- Department of Physiology,School of Medicine, Faculty of Health Sciences,University of Pretoria,Private Bag x323,Pretoria, Arcadia0007,South Africa
| | - Etheresia Pretorius
- Department of Physiology,School of Medicine, Faculty of Health Sciences,University of Pretoria,Private Bag x323,Pretoria, Arcadia0007,South Africa
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Berlanda N, Somigliana E, Viganò P, Vercellini P. Safety of medical treatments for endometriosis. Expert Opin Drug Saf 2015; 15:21-30. [DOI: 10.1517/14740338.2016.1121991] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Kline JA, Kabrhel C. Emergency Evaluation for Pulmonary Embolism, Part 1: Clinical Factors that Increase Risk. J Emerg Med 2015; 48:771-80. [DOI: 10.1016/j.jemermed.2014.12.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 12/17/2014] [Accepted: 12/21/2014] [Indexed: 12/14/2022]
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18
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Hugon-Rodin J, Gompel A, Plu-Bureau G. Epidemiology of hormonal contraceptives-related venous thromboembolism. Eur J Endocrinol 2014; 171:R221-30. [PMID: 25012200 DOI: 10.1530/eje-14-0527] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
For many years, it has been well documented that combined hormonal contraceptives increase the risk of venous thromboembolism (VTE). The third-generation pill use (desogestrel or gestodene (GSD)) is associated with an increased VTE risk as compared with second-generation (levonorgestrel) pill use. Other progestins such as drospirenone or cyproterone acetate combined with ethinyl-estradiol (EE) have been investigated. Most studies have reported a significant increased VTE risk among users of these combined oral contraceptives (COCs) when compared with users of second-generation pills. Non-oral combined hormonal contraception, such as the transdermal patch and the vaginal ring, is also available. Current data support that these routes of administration are more thrombogenic than second-generation pills. These results are consistent with the biological evidence of coagulation activation. Overall, the estrogenic potency of each hormonal contraceptive depending on both EE doses and progestin molecule explains the level of thrombotic risk. Some studies have shown a similar increased VTE risk among users of COCs containing norgestimate (NGM) as compared with users of second-generation pill. However, for this combination, biological data, based on quantitative assessment of sex hormone-binding globulin or haemostasis parameters, are not in agreement with these epidemiological results. Similarly, the VTE risk associated with low doses of EE and GSD is not biologically plausible. In conclusion, newer generation formulations of hormonal contraceptives as well as non-oral hormonal contraceptives seem to be more thrombogenic than second-generation hormonal contraceptives. Further studies are needed to conclude on the combinations containing NGM or low doses of EE associated with GSD.
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Affiliation(s)
- Justine Hugon-Rodin
- Department of Gynecology and EndocrinologyHôpitaux Universitaires Paris Centre, Paris-Descartes University, Paris, France
| | - Anne Gompel
- Department of Gynecology and EndocrinologyHôpitaux Universitaires Paris Centre, Paris-Descartes University, Paris, France
| | - Geneviève Plu-Bureau
- Department of Gynecology and EndocrinologyHôpitaux Universitaires Paris Centre, Paris-Descartes University, Paris, France
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Ashurst JV, Cherney AR, Evans EM, Kennedy Hall M, Hess EP, Kline JA, Mitchell AM, Mills AM, Weigner MB, Moore CL. Research priorities for the influence of gender on diagnostic imaging choices in the emergency department setting. Acad Emerg Med 2014; 21:1431-7. [PMID: 25420885 DOI: 10.1111/acem.12537] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 09/05/2014] [Accepted: 09/09/2014] [Indexed: 12/14/2022]
Abstract
Diagnostic imaging is a cornerstone of patient evaluation in the acute care setting, but little effort has been devoted to understanding the appropriate influence of sex and gender on imaging choices. This article provides background on this issue and a description of the working group and consensus findings reached during the diagnostic imaging breakout session at the 2014 Academic Emergency Medicine consensus conference "Gender-specific Research in Emergency Care: Investigate, Understand, and Translate How Gender Affects Patient Outcomes." Our goal was to determine research priorities for how sex and gender may (or should) affect imaging choices in the acute care setting. Prior to the conference, the working group identified five areas for discussion regarding the research agenda in sex- and gender-based imaging using literature review and expert consensus. The nominal group technique was used to identify areas for discussion for common presenting complaints to the emergency department where ionizing radiation is often used for diagnosis: suspected pulmonary embolism, suspected kidney stone, lower abdominal pain with a concern for appendicitis, and chest pain concerning for coronary artery disease. The role of sex- and gender-based shared decision-making in diagnostic imaging decisions is also raised.
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Affiliation(s)
- John V. Ashurst
- Department of Emergency Medicine; Lehigh Valley Hospital/USF Morsani College of Medicine; Allentown PA
| | - Alan R. Cherney
- Department of Emergency Medicine; Lehigh Valley Hospital/USF Morsani College of Medicine; Allentown PA
| | - Elizabeth M. Evans
- Department of Emergency Medicine; Lehigh Valley Hospital/USF Morsani College of Medicine; Allentown PA
| | - Michael Kennedy Hall
- Department of Emergency Medicine; Yale University School of Medicine; New Haven CT
| | - Erik P. Hess
- Department of Emergency Medicine; Mayo Clinic; Rochester MN
| | - Jeffrey A. Kline
- Department of Emergency Medicine; Indiana University School of Medicine; Indianapolis IN
| | - Alice M. Mitchell
- Department of Emergency Medicine; Indiana University School of Medicine; Indianapolis IN
| | - Angela M. Mills
- Department of Emergency Medicine; Perelman School of Medicine; University of Pennsylvania; Philadelphia PA
| | - Michael B. Weigner
- Department of Emergency Medicine; Lehigh Valley Hospital/USF Morsani College of Medicine; Allentown PA
| | - Christopher L. Moore
- Department of Emergency Medicine; Yale University School of Medicine; New Haven CT
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Roach REJ, Cannegieter SC, Lijfering WM. Differential risks in men and women for first and recurrent venous thrombosis: the role of genes and environment. J Thromb Haemost 2014; 12:1593-600. [PMID: 25081183 DOI: 10.1111/jth.12678] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 07/14/2014] [Indexed: 12/22/2022]
Abstract
Men have a higher risk of first and recurrent venous thrombosis than do women. However, the pathophysiology underlying this phenomenon is as yet unknown. In this review article, we assessed the prevalence and strength of genetic and acquired risk factors for venous thrombosis for men and women separately, because it is likely that either a difference in effect or distribution of a risk factor explains the risk difference between the sexes. We also summarized the sex-specific results of previous studies on the risk of first and recurrent venous thrombosis. Few explanations for the sex difference were found. The major factor, explaining about 20% difference in population-attributable fraction, was body height. No difference in prevalence or strength for other venous thrombosis risk factors was observed, such as plaster cast immobilization, hospitalization, surgery, trauma, malignancy, hyperhomocysteinemia, factor V Leiden, prothrombin G20210A, or blood group non-O. Alternative explanations for the sex difference are hypothesized in this review, including X- or Y-linked mutations or a mutation on a gene with a sex-specific effect. Future studies should focus on the sex-specific risk of venous thrombosis to unravel the pathophysiology and thereby improve sex-specific treatment and prevention strategies. Even so, male sex can be used as a tool through which individuals at increased risk of first or recurrent venous thrombosis may be identified.
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Affiliation(s)
- R E J Roach
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
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Hardman SM, Gebbie AE. The contraception needs of the perimenopausal woman. Best Pract Res Clin Obstet Gynaecol 2014; 28:903-15. [DOI: 10.1016/j.bpobgyn.2014.05.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 03/25/2014] [Accepted: 05/26/2014] [Indexed: 02/06/2023]
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Sandset PM. Combined oral contraceptives increase risk of venous thrombosis according to oestrogen dose and type of progestogen. EVIDENCE-BASED MEDICINE 2014; 19:194. [PMID: 24948124 DOI: 10.1136/ebmed-2014-110011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Per Morten Sandset
- Department of Haematology and Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway
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DeSancho MT. Risk of venous thrombosis varies with different types of combined oral contraceptives. EVIDENCE-BASED MEDICINE 2014; 19:e11. [PMID: 24288174 DOI: 10.1136/eb-2013-101605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- Maria T DeSancho
- Department of Medicine, Weill Cornell Medical Center, , New York, New York, USA
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Abstract
There is now compelling evidence that use of oral contraceptives and postmenopausal hormonal therapies containing various estrogens is associated with a weak, but clinically relevant risk of both arterial and venous thrombosis. The increased risk is related to type and dose of both estrogen and combined progestagen and mode of delivery. Treatment induces mainly subtle changes in individual components of the coagulation and fibrinolytic systems, but the overall effect is the induction of a prothrombotic phenotype. This brief review summarizes some of the mechanisms responsible the prothrombotic effects of such treatment.
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Affiliation(s)
- Per Morten Sandset
- Oslo University Hospital Rikshospitalet, Department of Haematology and Research Institute of Internal Medicine, University of Oslo, Oslo, Norway.
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Sonnevi K, Bergendal A, Adami J, Lärfars G, Kieler H. Self-reported family history in estimating the risk of hormone, surgery and cast related VTE in women. Thromb Res 2013; 132:164-9. [DOI: 10.1016/j.thromres.2013.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 05/31/2013] [Accepted: 06/02/2013] [Indexed: 01/11/2023]
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Simone B, De Stefano V, Leoncini E, Zacho J, Martinelli I, Emmerich J, Rossi E, Folsom AR, Almawi WY, Scarabin PY, den Heijer M, Cushman M, Penco S, Vaya A, Angchaisuksiri P, Okumus G, Gemmati D, Cima S, Akar N, Oguzulgen KI, Ducros V, Lichy C, Fernandez-Miranda C, Szczeklik A, Nieto JA, Torres JD, Le Cam-Duchez V, Ivanov P, Cantu-Brito C, Shmeleva VM, Stegnar M, Ogunyemi D, Eid SS, Nicolotti N, De Feo E, Ricciardi W, Boccia S. Risk of venous thromboembolism associated with single and combined effects of Factor V Leiden, Prothrombin 20210A and Methylenetethraydrofolate reductase C677T: a meta-analysis involving over 11,000 cases and 21,000 controls. Eur J Epidemiol 2013; 28:621-47. [PMID: 23900608 DOI: 10.1007/s10654-013-9825-8] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Accepted: 07/02/2013] [Indexed: 12/16/2022]
Abstract
Genetic and environmental factors interact in determining the risk of venous thromboembolism (VTE). The risk associated with the polymorphic variants G1691A of factor V (Factor V Leiden, FVL), G20210A of prothrombin (PT20210A) and C677T of methylentetrahydrofolate reductase (C677T MTHFR) genes has been investigated in many studies. We performed a pooled analysis of case-control and cohort studies investigating in adults the association between each variant and VTE, published on Pubmed, Embase or Google through January 2010. Authors of eligible papers, were invited to provide all available individual data for the pooling. The Odds Ratio (OR) for first VTE associated with each variant, individually and combined with the others, were calculated with a random effect model, in heterozygotes and homozygotes (dominant model for FVL and PT20210A; recessive for C677T MTHFR). We analysed 31 databases, including 11,239 cases and 21,521 controls. No significant association with VTE was found for homozygous C677T MTHFR (OR: 1.38; 95 % confidence intervals [CI]: 0.98-1.93), whereas the risk was increased in carriers of either heterozygous FVL or PT20210 (OR = 4.22; 95 % CI: 3.35-5.32; and OR = 2.79;95 % CI: 2.25-3.46, respectively), in double heterozygotes (OR = 3.42; 95 %CI 1.64-7.13), and in homozygous FVL or PT20210A (OR = 11.45; 95 %CI: 6.79-19.29; and OR: 6.74 (CI 95 % 2.19-20.72), respectively). The stratified analyses showed a stronger effect of FVL on individuals ≤ 45 years (p value for interaction = 0.036) and of PT20210A in women using oral contraceptives (p-value for interaction = 0.045). In this large pooled analysis, inclusive of large studies like MEGA, no effect was found for C677T MTHFR on VTE; FVL and PT20210A were confirmed to be moderate risk factors. Notably, double carriers of the two genetic variants produced an impact on VTE risk significantly increased but weaker than previously thought.
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Affiliation(s)
- Benedetto Simone
- Institute of Public Health - Section of Hygiene, Department of Public Health, Università Cattolica del Sacro Cuore, L.go F.Vito 1, 00168, Rome, Italy
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Abstract
BACKGROUND Venous thromboembolism (VTE) is a specific reproductive health risk for women. METHODS Searches were performed in Medline and other databases. The selection criteria were high-quality studies and studies relevant to clinical reproductive medicine. Summaries were presented and discussed by the European Society of Human Reproduction and Embryology Workshop Group. RESULTS VTE is a multifactorial disease with a baseline annual incidence around 50 per 100 000 at 25 years and 120 per 100 000 at age 50. Its major complication is pulmonary embolism, causing death in 1-2% of patients. Higher VTE risk is associated with an inherited thrombophilia in men and women. Changes in the coagulation system and in the risk of clinical VTE in women also occur during pregnancy, with the use of reproductive hormones and as a consequence of ovarian stimulation when hyperstimulation syndrome and conception occur together. In pregnancy, the risk of VTE is increased ~5-fold, while the use of combined hormonal contraception (CHC) doubles the risk and this relative risk is higher with the more recent pills containing desogestrel, gestodene and drospirenone when compared with those with levonorgestrel. Similarly, hormone replacement therapy (HRT) increases the VTE risk 2- to 4-fold. There is a synergistic effect between thrombophilia and the various reproductive risks. Prevention of VTE during pregnancy should be offered to women with specific risk factors. In women who are at high risk, CHC and HRT should be avoided. CONCLUSIONS Clinicians managing pregnancy or treating women for infertility or prescribing CHC and HRT should be aware of the increased risks of VTE and the need to take a careful medical history to identify additional co-existing risks, and should be able to diagnose VTE and know how to approach its prevention.
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28
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Raps M, Rosendaal F, Ballieux B, Rosing J, Thomassen S, Helmerhorst F, van Vliet H. Resistance to APC and SHBG levels during use of a four-phasic oral contraceptive containing dienogest and estradiol valerate: a randomized controlled trial. J Thromb Haemost 2013; 11:855-61. [PMID: 23410231 DOI: 10.1111/jth.12172] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 01/17/2013] [Indexed: 11/26/2022]
Abstract
BACKGROUND The use of combined oral contraceptives is associated with a 3- to 6-fold increased risk of venous thrombosis. This increased risk depends on the estrogen dose as well as the progestogen type of combined oral contraceptives. Thrombin generation-based activated protein C resistance (APC resistance) and sex hormone-binding globulin (SHBG) levels predict the thrombotic risk of a combined hormonal contraceptive. Recently, a four-phasic oral contraceptive containing dienogest (DNG) and estradiol valerate (E2V) has been marketed. The aim of this study was to evaluate the thrombotic risk of the DNG/E2V oral contraceptive by comparing APC resistance by measuring normalized APC sensitivity ratios (nAPCsr) and SHBG levels in users of oral contraceptives containing dienogest and estradiol valerate (DNG/E2V) and oral contraceptives containing levonorgestrel and ethinyl estradiol (LNG/EE). METHODS We conducted a single-center, randomized, open label, parallel-group study in 74 women using DNG/E2V or LNG/EE, and measured nAPCsr and SHBG levels in every phase of the regimen of DNG/E2V. RESULTS During the pill cycle SHBG levels did not differ between DNG/E2V users and LNG/EE users. nAPCsr levels were overall slightly lower in DNG/E2V users than in LNG/EE users, mean difference -0.44 (95% CI, -1.04 to 0.17) for day 2, -0.20 (95% CI, -0.76 to 0.37) for day 7, -0.27 (95% CI, -0.81 to 0.28) for day 24 and -0.34 (95% CI, -0.91 to 0.24) for day 26. CONCLUSION No statistical significant differences in nAPCsr and SHBG levels were found between users of the oral contraceptive containing DNG/E2V and LNG/EE, suggesting a comparable thrombotic risk.
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Affiliation(s)
- M Raps
- Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
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Plu-Bureau G, Maitrot-Mantelet L, Hugon-Rodin J, Canonico M. Hormonal contraceptives and venous thromboembolism: an epidemiological update. Best Pract Res Clin Endocrinol Metab 2013; 27:25-34. [PMID: 23384743 DOI: 10.1016/j.beem.2012.11.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Since the early 1960s, it has been well documented that combined hormonal contraceptives increase the risk of cardiovascular disease. Newer generation of oral formulations, as well as non-oral contraceptives (transdermal and vaginal), have been recently studied for thrombotic risk. This review provides a summary of the association between hormonal contraceptives and venous thromboembolism with emphasis on new formulations of hormonal contraceptives as well as route of administration. A systematic search of Medline database was done for all relevant articles which included women having used third generation pills, and the development of new progestins. Eligible articles published in English and reporting the risk of venous thromboembolism (VTE) (pulmonary embolism or deep venous thrombosis) among users of hormonal contraceptives were reviewed. A quantitative assessment was made from included studies. Current use of drospirenone or cyproterone oral combined contraceptives increased the risk of VTE compared with second generation pills (pooled OR: 1.7; 95% confidence interval [95% CI]: 1.4-2.2 and OR: 1.8; 95% CI: 1.4-2.3, respectively). In the context of contraceptive use, non-oral route of ethinyl-estradiol administration seems to be more thrombogenic than oral route. In contrast, low doses of both oral progestin contraceptives and intrauterine levonorgestrel could be safe with respect to VTE risk. In conclusion, newer generation formulations of hormonal contraceptives, as well as the non-oral hormonal contraceptive, seem to be more thrombogenic than second generation hormonal contraceptives.
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Affiliation(s)
- Genevieve Plu-Bureau
- Department of Gynecology and Endocrinology, Hôpital Universitaires Paris Centre, Paris-Descartes University, Paris, France.
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Gourdy P, Bachelot A, Catteau-Jonard S, Chabbert-Buffet N, Christin-Maître S, Conard J, Fredenrich A, Gompel A, Lamiche-Lorenzini F, Moreau C, Plu-Bureau G, Vambergue A, Vergès B, Kerlan V. Hormonal contraception in women at risk of vascular and metabolic disorders: Guidelines of the French Society of Endocrinology. ANNALES D'ENDOCRINOLOGIE 2012; 73:469-87. [DOI: 10.1016/j.ando.2012.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Abstract
Venous thromboembolism (VTE) is a major cause of maternal morbidity and mortality during or early after pregnancy and in women taking hormonal therapy for contraception or for replacement therapy. Post-thrombotic syndrome, including leg oedema and leg pain, is an unrecognized burden after pregnancy-related VTE, which will affect more than two of five women. Women with a prior VTE, a family history of VTE, certain clinical risk factors and thrombophilia are at considerably increased risk both for pregnancy-related VTE and for VTE on hormonal therapy. This review critically assesses the epidemiology and risk factors for pregnancy-related VTE and current guidelines for prophylaxis and treatment. We also provide information on the risk of VTE related to hormonal contraception and replacement therapy.
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Jong PG, Coppens M, Middeldorp S. Duration of anticoagulant therapy for venous thromboembolism: balancing benefits and harms on the long term. Br J Haematol 2012; 158:433-41. [DOI: 10.1111/j.1365-2141.2012.09196.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Paulien G. Jong
- Department of Vascular Medicine; Academic Medical Center; Amsterdam; The Netherlands
| | | | - Saskia Middeldorp
- Department of Vascular Medicine; Academic Medical Center; Amsterdam; The Netherlands
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Raps M, Helmerhorst F, Fleischer K, Thomassen S, Rosendaal F, Rosing J, Ballieux B, VAN Vliet H. Sex hormone-binding globulin as a marker for the thrombotic risk of hormonal contraceptives. J Thromb Haemost 2012; 10:992-7. [PMID: 22469296 DOI: 10.1111/j.1538-7836.2012.04720.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND It takes many years to obtain reliable values for the risk of venous thrombosis of hormonal contraceptive users from clinical data. Measurement of activated protein C (APC) resistance via thrombin generation is a validated test for determining the thrombogenicity of hormonal contraceptives. Sex hormone-binding globulin (SHBG) might serve as a marker for the risk of venous thrombosis, and can be easily and rapidly measured in routine laboratories. OBJECTIVE To determine whether SHBG is a useful marker for the thrombotic risk of hormonal contraceptive users by comparing plasma SHBG levels with normalized APC sensitivity ratio (nAPCsr) values and thrombosis risks reported in the recent literature. METHODS We conducted an observational study in 262 users of different contraceptives, and measured nAPCsr and SHBG levels. RESULTS Users of contraceptives with a higher risk of causing venous thrombosis, i.e. combined hormonal contraceptives containing desogestrel, cyproterone acetate or drospirenone, and the transdermal patch, had higher SHBG levels than users of combined hormonal contraceptives containing levonorgestrel, which carry a lower thrombosis risk. Users of the patch had the highest SHBG levels, with a mean difference of 246 nmol L(-1) (95% confidence interval 179-349) from that in users of levonorgestrel-containing combined hormonal contraceptives. SHBG levels were positively associated with both the nAPCsr and the risks of venous thrombosis reported in the recent literature. CONCLUSION SHBG is a useful marker with which to estimate the thrombotic safety of a preparation.
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Affiliation(s)
- M Raps
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
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Flores-García M, Fernández-G JM, León-Martínez M, Hernández-Ortega S, Pérez-Méndez O, Correa-Basurto J, Carreón-Torres E, Tolentino-López LE, Ceballos-Reyes GM, de la Peña-Díaz A. The structures and inhibitory effects of Buame [N-(3-hydroxy-1,3,5(10)-estratrien-17β-yl)-butylamine] and Diebud [N,N'-bis-(3-hydroxy-1,3,5(10)-estratrien-17β-yl)-1,4-butanediamine] on platelet aggregation. Steroids 2012; 77:512-20. [PMID: 22326683 DOI: 10.1016/j.steroids.2012.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 01/13/2012] [Accepted: 01/14/2012] [Indexed: 10/25/2022]
Abstract
Compounds with estrogenic effects that also inhibit platelet aggregation might be useful in reducing thrombotic events associated with estrogenic therapy. In this study, two aminoestrogens, Buame [N-(3-hydroxy-1,3,5(10)-estratrien-17β-yl)-butylamine] and Diebud [N,N'-bis-(3-hydroxy-1,3,5(10)-estratrien-17β-yl)-1,4-butanediamine], were synthesized and characterized using common analytical methods and spectrophotometric analyses. The location and orientation of these molecules on the estrogenic receptor α (ERα) were also evaluated. Platelet inhibitory effects were elucidated ADP-induced platelet aggregation and ADP- and collagen-induced ATP release. Molecular docking demonstrated that Buame can reach and bind to the ERα in the ligand binding domain (LBD) similar to 17β-estradiol (co-crystallized ligand). On the other hand, Diebud binds only to the surface of ERα due to its high molecular volume compared to 17β-estradiol and Buame.
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Affiliation(s)
- Mirthala Flores-García
- Departamento de Biología Molecular, Instituto Nacional de Cardiología Ignacio Chavéz, México D.F., Mexico
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Adams AG, Awsare BK. Review for hospitalists: acute pulmonary embolism. Hosp Pract (1995) 2012; 39:55-62. [PMID: 22056823 DOI: 10.3810/hp.2011.10.922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Acute pulmonary embolism (PE) is a common and potentially life-threatening disease; however, the clinical presentation of acute PE can be quite variable, making the diagnosis a challenge. Occlusion of the pulmonary arterial bed can lead to gas exchange abnormalities or right ventricular dysfunction. Mortality rates are high but can be reduced when prompt suspicion leads to accurate diagnosis and treatment. Management includes timely initiation of anticoagulation therapy. The objective of this article is to provide a broad overview of acute PE epidemiology, risk factors, diagnosis, risk stratification, and management.
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Affiliation(s)
- Andrea G Adams
- Division of Pulmonary Critical Care Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
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