1
|
Le Ruz R, Guérin P, Leurent G, Leroux L, Lefevre T, Nejjari M, Champagnac D, Tchétché D, Lhermusier T, Caussin C, Delomez M, Bonnet G, Favereau X, Karam N, Gerbay A, Juthier F, Gilard M, Obadia JF, Iung B, Manigold T. Mitral valve-in-valve and valve-in-ring procedures: Midterm outcomes in a French nationwide registry. Archives of Cardiovascular Diseases Supplements 2023. [DOI: 10.1016/j.acvdsp.2022.10.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
2
|
Matta A, Campelo-Parada F, Nader V, Lhermusier T, Bouisset F, Blanco S, Roncalli J, Carrié D. Long-term outcomes of conservative versus invasive approach of coronary aneurysm. Archives of Cardiovascular Diseases Supplements 2023. [DOI: 10.1016/j.acvdsp.2022.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
3
|
Mezier A, Motreff P, Clerc JM, Bar O, Deballon R, Demicheli T, Dechery T, Souteyrand G, Py A, Lhoest N, Lhermusier T, Honton B, Gommeaux A, Jeanneteau J, Deharo P, Benamer H, Cayla G, Koning R, Pereira B, Collet JP, Rangé G. Is the duration of dual antiplatelet therapy (DAPT) excessive in post-angioplasty in chronic coronary syndrome? Data from the France-PCI registry (2014-2019). Front Cardiovasc Med 2023; 10:1106503. [PMID: 37034332 PMCID: PMC10080068 DOI: 10.3389/fcvm.2023.1106503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
Background while the duration of dual antiplatelet therapy (DAPT) following coronary angioplasty for chronic coronary syndrome (CCS) recommended by the European Society of Cardiology has decreased over the last decade, little is known about the adherence to those guidelines in clinical practice in France. Aim To analyze the real duration of DAPT post coronary angioplasty in CCS, as well as the factors affecting this duration. Methods Between 2014 and 2019, 8.836 percutaneous coronary interventions for CCS from the France-PCI registry were evaluated, with 1 year follow up, after exclusion of patients receiving oral anticoagulants, procedures performed within one year of an acute coronary syndrome, and repeat angioplasty. Results Post-percutaneous coronary intervention (PCI) DAPT duration was > 12 months for 53.1% of patients treated for CCS; 30.5% had a DAPT between 7 and 12 months, and 16.4% a DAPT ≤ 6 months. Patients with L-DAPT (>12 months) were at higher ischemic risk [25.0% of DAPT score ≥2 vs. 18.8% DAPT score ≥2 in S&I-DAPT group (≤12 months)]. The most commonly used P2Y12 inhibitor was clopidogrel (82.2%). The prescription of ticagrelor increased over the period. Conclusions post-PCI DAPT duration in CCS was higher than international recommendations in the France PCI registry between 2014 and 2019. More than half of the angioplasty performed for CCS are followed by a DAPT > 12 months. Ischemic risk assessment influences the duration of DAPT. This risk is probably overestimated nowadays, leading to a prolongation of DAPT beyond the recommended durations, thus increasing the bleeding risk.
Collapse
Affiliation(s)
- A. Mezier
- Cardiology Department, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
- Correspondence: A. Mezier
| | - P. Motreff
- Cardiology Department, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - J. M. Clerc
- Cardiology Department, Centre Hospitalier Universitaire de Tours, Tours, France
| | - O. Bar
- Cardiology Department, Nouvelle Clinique Tourangelle, Saint-Cyr-sur-Loire, France
| | - R. Deballon
- Cardiology Department, Clinique Oréliance, Orléans, France
| | - T. Demicheli
- Cardiology Department, Les Hôpitaux de Chartres, Chartres, France
| | - T. Dechery
- Cardiology Department, Centre Hospitalier Jacques Coeur, Bourges, France
| | - G. Souteyrand
- Cardiology Department, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - A. Py
- Cardiology Department, Clinique de l’Europe, Amiens, France
| | - N. Lhoest
- Cardiology Departemnt, Clinique Rhéna, Strasbourg, France
| | - T. Lhermusier
- Cardiology Department, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - B. Honton
- Cardiology Department, Clinique Pasteur, Toulouse, France
| | - A. Gommeaux
- Cardiology Department, Hôpital Privé de Bois-Bernard, Bois-Bernard, France
| | - J. Jeanneteau
- Cardiology Department, Clinique Saint Joseph, Trelaze, France
| | - P. Deharo
- Cardiology Department, Centre Hospitalier Universitaire de la Timone, Marseille, France
| | - H. Benamer
- Cardiology Department, Institut Cardiovasculaire Paris Sud, Massy, France
| | - G. Cayla
- Cardiology Department, Centre Hospitalier Universitaire de Nîmes, Nîmes, France
| | - R. Koning
- Cardiology Department, Clinique Saint Hilaire, Rouen, France
| | - B. Pereira
- Clinical Research and Innovation Direction, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France
| | - J. P. Collet
- Cardiology Institute, Hôpital Pitié-Salpêtrière (Assistance Publique-Hôpitaux de Paris), Paris, France
| | - G. Rangé
- Cardiology Department, Les Hôpitaux de Chartres, Chartres, France
| |
Collapse
|
4
|
Matta A, Nader V, Canitrot R, Delmas C, Bouisset F, Lhermusier T, Blanco S, Parada FC, Elbaz M, Carrie D, Galinier M, Roncalli J. Myocardial bridging is significantly associated with myocardial infarction with non-obstructive coronary arteries. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Myocardial infarction with non-obstructive coronary arteries (MINOCA) is a common disorder characterized by the presence of clinical criteria for acute myocardial infarction in the absence of obstructive coronary artery disease on angiography. We aim to investigate the relationship between myocardial bridging (MB) and MINOCA.
Methods
An observational retrospective study was conducted on 15,036 patients who had been referred for coronary angiography and who fulfilled the Fourth Universal Definition of Myocardial Infarction. The study population was divided into STEMI and non-STEMI patients, from which we defined two main groups: the MINOCA group and the coronary artery disease (CAD) group. Statistical analyses were carried out by using SPSS, version 20.
Results
The prevalence of angiographic MB among the groups was significantly greater in the MINOCA group (2.9% vs. 0.8%). MINOCA accounted for 14.5% of spontaneous myocardial infarction, and the clinical presentation was frequently NSTEMI rather than STEMI (84.3% vs. 15.7%). After adjusting for confounders, multivariate analyses showed a positive association between MB and MINOCA [OR=3.28, 95% CI (2.34; 4.61) p<0.001]. Cardiovascular risk factors were less common in the MINOCA population, which was younger and more often female.
Conclusion
MB is a risk factor for MINOCA. Because MB prevalence differed significantly between the controls (CAD group) and cases (MINOCA group), which were positively associated to MB, it seems likely that MB would be a potential cause of MINOCA. Investigations for MB in MINOCA cases and especially in NSTEMI patients seem necessary.
Funding Acknowledgement
Type of funding sources: Public hospital(s). Main funding source(s): Rangueil Hospital
Collapse
Affiliation(s)
- A Matta
- Rangueil Hospital of Toulouse , Toulouse , France
| | - V Nader
- Rangueil Hospital of Toulouse , Toulouse , France
| | - R Canitrot
- Rangueil Hospital of Toulouse , Toulouse , France
| | - C Delmas
- Rangueil Hospital of Toulouse , Toulouse , France
| | - F Bouisset
- Rangueil Hospital of Toulouse , Toulouse , France
| | - T Lhermusier
- Rangueil Hospital of Toulouse , Toulouse , France
| | - S Blanco
- Rangueil Hospital of Toulouse , Toulouse , France
| | - F C Parada
- Rangueil Hospital of Toulouse , Toulouse , France
| | - M Elbaz
- Rangueil Hospital of Toulouse , Toulouse , France
| | - D Carrie
- Rangueil Hospital of Toulouse , Toulouse , France
| | - M Galinier
- Rangueil Hospital of Toulouse , Toulouse , France
| | - J Roncalli
- Rangueil Hospital of Toulouse , Toulouse , France
| |
Collapse
|
5
|
Leurent G, Auffret V, Grinberg D, Le Ruz R, Saint Etienne C, Pierrard R, Champagnac D, Benard T, Lecoq G, Arnould M, Bonnet G, Lhermusier T, Corbineau H, Donal E. Transcatheter edge-to-edge mitral valve repair following surgical annuloplasty with ring implantation. Results from the multicenter “Clip-in-Ring” registry. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2021.09.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
6
|
Matta A, Nader V, Canitrot R, Delmas C, Bouisset F, Lhermusier T, Blanco S, Parada F, Elbaz M, Carrié D, Galinier M, Roncalli J. Myocardial Bridging is Significantly Related to Myocardial Infarction with Non-Obstructive Coronary Artery Disease. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2021.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
7
|
Matta A, Lhermusier T, Parada F, Bouisset F, Ronan C, Nader V, Blanco S, Elbaz M, Roncalli J, Carrié D. Impact of Coronary Artery Disease and Percutaneous Coronary Intervention on Transcatheter Aortic Valve Implantation. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2021.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
8
|
Matta A, Lhermusier T, Bouisset F, Parada F, Elbaz M, Nader V, Blanco S, Roncalli J, Carrié D. Outcomes of transcatheter aortic valve implantation in nonagenarians compared to < 90 years patients. Archives of Cardiovascular Diseases Supplements 2022. [DOI: 10.1016/j.acvdsp.2021.09.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Servoz C, Bouisset F, Marcheix B, Grunenwald E, Carrié D, Boudou N, Campelo-Parada F, Chollet T, Lhermusier T. Infective endocarditis after transcatheter aortic-valve implantation: Incidence, impact and treatment in a French university hospital. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2019.09.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
10
|
Servoz C, Chollet T, Bouisset F, Carrié D, Boudou N, Campelo-Parada F, Marcheix B, Grunenwald E, Lhermusier T. Impact of lung diseases in patients undergoing on transaortic compared with transfemoral TAVI. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2019.09.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
11
|
Larroche J, Panh L, Lhermusier T, Lairez O, Bataille V, Marachet MA, Chollet T, Petermann A, Bouisset F, Boudou N, Marcheix B, Rousseau H, Galinier MA, Carrie D, Lavie-Badie Y. P906Impact of aortic valve calcification severity on device success after trans catheter aortic valve replacement. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
The aim of this study was to determine whether CS, measured on the preoperative contrast enhanced multislice computed tomography (MSCT), is associated with Device Success (DS), Major Adverse Cardiac Events (MACE) and paravalvular leaks (PVL) after TAVR.
Methods
We included 352 consecutive patients who underwent TAVR with a preoperative standardized contrast enhanced MSCT. Valvular calcifications detection was defined by adding +100 Hounsfield Unit (HU) to mean HU determined by a Region Of Interest placed in the contrast enhanced ascending aorta. CS was then indexed to the aortic annulus surface (CSi). Endpoints were DS and 30-days MACE according to Valve Academic Research Consortium-2 consensus document, and PVL greater than or equal to grade 2.
Results
DS was obtained for 305 patients. In multivariate analysis, CS and CSi were negatively and independently associated with DS: OR=0.88, 95% CI 0.81–0.96, p=0.004; and OR=0.94, 95% CI 0.91–0.98, p=0.002 respectively. There was no association between MACE and CS (p=0,953) and CSi (p=0,757). PVL was positively associated with CS (p<0.001) and CSi (p<0.001).
Multivariate analysis for device success Multivariate analysis for device success procedure Initial Model Final Model OR (95% CI) p OR (95% CI) p Age (years) 1.06 (1–1.12) 0.058 Size (cm) 1.02 (0.98–1.07) 0.26 Hypertension 0.35 (0.13–0.92) 0.033 0.34 (0.13–0.87) 0.024 Diabete mellitus 1.72 (0.68–4.34) 0.249 Mean gradient 0.99 (0.97–1.02) 0.517 Mitral regurgitation 0.6 (0.28–1.27) 0.18 Valve size ≤23 1 (REF) 26 1.85 (0.8–4.27) 0.152 29 4.08 (1.32–12.59) 0.015 4.72 (1.62–13.78) 0.004 31 1.42 (0.32–6.38) 0.647 CS (for an increase of 1000 pts) 0.89 (0.81–0.98) 0.017 0.88 (0.81–0.96) 0.004 CSi (for an increase of 100 pts) 0.94 (0.9–0.99) 0.013 0.96 (0.91–0.98) 0.002
Example of CS measurement
Conclusion
In TAVR, the aortic valvular CS, measured on preoperative contrast enhanced MSCT, is significantly associated with DS and PVL, but not with 30-days MACE. Its routine use could be relevant to appreciate success chances of TAVR.
Collapse
Affiliation(s)
- J Larroche
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - L Panh
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - T Lhermusier
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - O Lairez
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - V Bataille
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - M.-A Marachet
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - T Chollet
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - A Petermann
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - F Bouisset
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - N Boudou
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - B Marcheix
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - H Rousseau
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - M.-A Galinier
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - D Carrie
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - Y Lavie-Badie
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| |
Collapse
|
12
|
Bouisset F, Blanco S, Bongard V, Sebai F, Billet S, Biendel C, Lairez O, Lhermusier T, Boudou N, Campelo-Parada F, Roncalli J, Galinier M, Elbaz M, Carrie D, Ferrieres J. P4697Prognosis impact of frailty assessed by the Edmonton Frail Scale in the setting of acute coronary syndrome in the elderly. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
13
|
Lupieri A, Smirnova N, Ohayon P, Malet N, Zeboudj L, Ait Oufella H, Lhermusier T, Carrie D, Gayral S, Laffargue M. PI3Kgamma a novel therapeutic target to increase reendothelialization in mice through modulation of CXCL10 secretion. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30376-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
14
|
Chollet T, Lhermusier T, Galinier M, Carrie D. Switching from clopidogrel to prasugrel in ST-elevation myocardial infarction treated with thrombolysis, an observational study. Archives of Cardiovascular Diseases Supplements 2017. [DOI: 10.1016/s1878-6480(17)30098-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
15
|
Lhermusier T, Severin S, Van Rothem J, Garcia C, Bertrand-Michel J, Le Faouder P, Hechler B, Broccardo C, Couvert P, Chimini G, Sié P, Payrastre B. ATP-binding cassette transporter 1 (ABCA1) deficiency decreases platelet reactivity and reduces thromboxane A2 production independently of hematopoietic ABCA1. J Thromb Haemost 2016; 14:585-95. [PMID: 26749169 DOI: 10.1111/jth.13247] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 02/03/2023]
Abstract
UNLABELLED ESSENTIALS: The role of ATP-binding cassette transporter 1 (ABCA1) in platelet functions is poorly characterized. We studied the impact of ABCA1 deficiency on platelet responses in a mouse model and two Tangier patients. ABCA1-deficient platelets exhibit reduced positive feedback loop mechanisms. This reduced reactivity is dependent on external environment and independent of hematopoietic ABCA1. SUMMARY BACKGROUND The ATP-binding cassette transporter ABCA1 is required for the conversion of apolipoprotein A-1 to high-density lipoprotein (HDL), and its defect causes Tangier disease, a rare disorder characterized by an absence of HDL and accumulation of cholesterol in peripheral tissues. The role of ABCA1 in platelet functions remains poorly characterized. OBJECTIVE To determine the role of ABCA1 in platelet functions and to clarify controversies concerning its implication in processes as fundamental as platelet phosphatidylserine exposure and control of platelet membrane lipid composition. METHODS AND RESULTS We studied the impact of ABCA1 deficiency on platelet responses in a mouse model and in two Tangier patients. We show that platelets in ABCA1-deficient mice are slightly larger in size and exhibit aggregation and secretion defects in response to low concentrations of thrombin and collagen. These platelets have normal cholesterol and major phospholipid composition, granule morphology, or calcium-induced phosphatidylserine exposure. Interestingly, ABCA1-deficient platelets display a reduction in positive feedback loop mechanisms, particularly in thromboxane A2 (TXA2) production. Hematopoietic chimera mice demonstrated that defective eicosanoids production, particularly TXA2, was primarily dependent on external environment and not on the hematopoietic ABCA1. Decreased aggregation and production of TXA2 and eicosanoids were also observed in platelets from Tangier patients. CONCLUSIONS Absence of ABCA1 and low HDL level induce reduction of platelet reactivity by decreasing positive feedback loops, particularly TXA2 production through a hematopoietic ABCA1-independent mechanism.
Collapse
Affiliation(s)
- T Lhermusier
- Inserm, U1048 et Université Toulouse 3, I2MC, Toulouse, France
- Département de Cardiologie, CHU de Toulouse, Toulouse, France
| | - S Severin
- Inserm, U1048 et Université Toulouse 3, I2MC, Toulouse, France
| | - J Van Rothem
- Inserm, U1048 et Université Toulouse 3, I2MC, Toulouse, France
- Département de Cardiologie, CHU de Toulouse, Toulouse, France
| | - C Garcia
- Laboratoire d'Hématologie, CHU de Toulouse, Toulouse, France
| | | | - P Le Faouder
- I2MC, Lipidomic Core Facility-MetaToul, Toulouse, France
| | - B Hechler
- Inserm UMR-S949, Etablissement Français du Sang-Alsace, Strasbourg, France
| | | | - P Couvert
- Service de Biochimie Endocrinienne et Oncologique, Hôpital Pitié Salpêtrière, Paris, France
| | - G Chimini
- CIML, Parc Scientifique de Luminy, Case 906, Marseille Luminy, France
| | - P Sié
- Inserm, U1048 et Université Toulouse 3, I2MC, Toulouse, France
- Laboratoire d'Hématologie, CHU de Toulouse, Toulouse, France
| | - B Payrastre
- Inserm, U1048 et Université Toulouse 3, I2MC, Toulouse, France
- Laboratoire d'Hématologie, CHU de Toulouse, Toulouse, France
| |
Collapse
|
16
|
Lhermusier T, Voisin S, Murat G, Mejean S, Garcia C, Bataille V, Lipinski M, Carrié D, Sié P. Switching patients from clopidogrel to novel P2Y12 receptor inhibitors in acute coronary syndrome: Comparative effects of prasugrel and ticagrelor on platelet reactivity. Int J Cardiol 2014; 174:874-6. [DOI: 10.1016/j.ijcard.2014.04.208] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/15/2014] [Accepted: 04/18/2014] [Indexed: 12/15/2022]
|
17
|
Andre R, Boudou N, Dumonteil N, Lhermusier T, Vanrothem J, Elbaz M, Carrie D. In hospital and long-term outcomes after percutaneous coronary intervention for chronic total occlusions in elderly patients: a consecutive prospective monocentric study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
18
|
Cerrato E, D'Ascenzo F, Moretti C, Cassese S, Chinaglia A, Appleton D, Lhermusier T, Das Neves B, Biondi-Zoccai G, Gaita F. HIV-infected patients with acute coronary syndromes: thrombotic events or plaque progression? An international contemporary registry. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.2782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
19
|
Lhermusier T, Voisin S, Mejean S, Garcia C, Sié P, Carrié D. Switching patients from clopidogrel to prasugrel in acute coronary syndrome: effects of prasugrel loading dose on residual platelet reactivity. J Thromb Haemost 2012; 10:1946-9. [PMID: 22747669 DOI: 10.1111/j.1538-7836.2012.04838.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
20
|
|
21
|
Lhermusier T, van Rottem J, Garcia C, Xuereb JM, Ragab A, Martin V, Gratacap MP, Sié P, Payrastre B. The Syk-kinase inhibitor R406 impairs platelet activation and monocyte tissue factor expression triggered by heparin-PF4 complex directed antibodies. J Thromb Haemost 2011; 9:2067-76. [PMID: 21848694 DOI: 10.1111/j.1538-7836.2011.04470.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Heparin-induced thrombocytopenia (HIT) is a rare but severe complication of heparin therapy in which immunoglobulin G (IgG) antibodies against the platelet factor 4-heparin complex activate platelets through the FcγRIIA receptor. Clustering of FcγRIIA initiates signaling cascades involving tyrosine kinases including the spleen tyrosine kinase (Syk). Moreover, besides the critical role of platelets, the expression of tissue factor (TF) by human monocytes triggered by HIT antibodies has been shown to contribute to the hypercoagulability and the thrombotic complications in HIT patients. OBJECTIVES We investigated the effect of R406, a small molecule inhibitor of Syk developed as a potential treatment of autoimmune diseases, allergic disorders and B-cell related hematological malignancies, on FcγRIIA-mediated platelet activation. To further assess the potential activity of Syk inhibitors in HIT treatment, the effect of R406 was also evaluated on HIT antibodies-induced expression of TF and procoagulant activity of monocytic cells. RESULTS We show that R406 is a potent inhibitor of platelet signaling and functions initiated by FcγRIIA cross-linking by specific antibodies or by sera from HIT patients. Syk inhibition efficiently prevents FcγRIIA-induced LAT phosphorylation and activation of phosphoinositide 3-kinase, Akt, phospholipase Cγ2 and p38 MAP-kinase. As a consequence, FcγRIIA-induced platelet aggregation, granule secretion and microparticles production are strongly inhibited by R406. Moreover, the Syk inhibitor efficiently impairs the expression of TF and the procoagulant activity of human monocytes triggered by HIT antibodies. CONCLUSION Syk inhibitors may be of therapeutic interest in the treatment of HIT by reducing HIT antibodies-mediated platelet activation and monocyte procoagulant activity.
Collapse
Affiliation(s)
- T Lhermusier
- Inserm, U1048 and Université Toulouse 3, I2MC, 31432 Toulouse Cedex 04, France
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Lhermusier T, Chap H, Payrastre B. Platelet membrane phospholipid asymmetry: from the characterization of a scramblase activity to the identification of an essential protein mutated in Scott syndrome. J Thromb Haemost 2011; 9:1883-91. [PMID: 21958383 DOI: 10.1111/j.1538-7836.2011.04478.x] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Like all eukaryotic cells, platelets maintain plasma membrane phospholipid asymmetry in normal blood circulation via lipid transporters, which control transbilayer movement. Upon platelet activation, the asymmetric orientation of membrane phospholipids is rapidly disrupted, resulting in a calcium-dependent exposure of the anionic phospholipid, phosphatidylserine (PS), at the outer platelet surface. This newly-exposed PS surface is a major component of normal hemostasis because it supports platelet procoagulant function. Binding of blood clotting enzyme complexes to this negatively-charged membrane surface allows a dramatic increase in the rate of conversion of zymogens to active serine proteases, which in turn produce a burst of thrombin leading to the formation of a fibrin clot and further platelet activation. Cells have the capacity to catalyze transbilayer phospholipid exchange via ATP-requiring translocase enzymes (flippases and floppases), which control unidirectional phospholipid transport against a concentration gradient. They also use an energy-independent, calcium-dependent scramblase activity to govern the bidirectional exchange of phospholipids between the two leaflets of the bilayer; this activity is essential for PS exposure during platelet activation. Scramblase activity, biochemically characterized in the 1980s, is deficient in patients with Scott syndrome, a rare inherited bleeding disorder with defective platelet procoagulant activity. Despite considerable efforts, the platelet scramblase protein remained elusive for years but a significant advance has recently been made with the identification of TMEM16F, a membrane protein essential for calcium-dependent PS exposure whose loss of function mutations are found in Scott syndrome. This review recalls historical aspects of platelet membrane asymmetry characterization, summarizes the mechanisms and roles of PS exposure following platelet activation and discusses the recent identification of TMEM16F and its significance in the scrambling process.
Collapse
Affiliation(s)
- T Lhermusier
- Inserm, U1048 and Université Toulouse 3, I2MC, 31432 Toulouse Cedex 04, France
| | | | | |
Collapse
|
23
|
Tidjane MA, Voisin S, Lhermusier T, Bongard V, Sié P, Carrié D. More on: adenosine diphosphate-inducible platelet reactivity shows a pronounced age dependency in the initial phase of antiplatelet therapy with clopidogrel. J Thromb Haemost 2011; 9:614-6. [PMID: 21199321 DOI: 10.1111/j.1538-7836.2010.04180.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
24
|
Boudou N, Marcheix B, Biendel-Piquet C, Dumonteil N, Lhermusier T, Benhaoua H, Carrié D. [Left ventricular assist devices in cardiogenic shock]. Ann Cardiol Angeiol (Paris) 2010; 59:362-6. [PMID: 21056404 DOI: 10.1016/j.ancard.2010.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Cardiogenic shock is the leading cause of in-hospital death for myocardial infarction. Despite therapeutic improvements, such as medical treatment with inotropes, myocardial revascularization, circulatory assistance can be an option. Intra-aortic balloon pumping is highly recommended in the presence of haemodynamic impairment. If the patient continues to deteriorate and cardiac function cannot maintain adequate circulation to prevent end-organ failure, several mechanical circulatory assist devices can be considered: extracorporeal membrane oxygenator (ECMO), Impella(®)… These devices should be used at tertiary centres either as bridge to recovery or as bridge to transplantation or as bridge to long-term left ventricle assist device.
Collapse
Affiliation(s)
- N Boudou
- Hôpital de Rangueil, CHU de Toulouse, France
| | | | | | | | | | | | | |
Collapse
|
25
|
Boudou N, Roncalli J, Lhermusier T, Moudens G, Celse D, Fourcade J, Elbaz M, Baixas C, Puel J, Carrie D. Long-term clinical outcome after percutaneous coronary interventions in the elderly: results for 512 consecutive patients. EUROINTERVENTION 2008; 3:512-7. [PMID: 19736096 DOI: 10.4244/eijv3i4a90] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS Elderly patients are increasingly being referred for percutaneous coronary intervention (PCI), but there is a paucity of current data on the long-term outcome of elective PCI in elderly patients. We sought to define the risks facing elderly patients undergoing contemporary PCIs. METHODS AND RESULTS Retrospectively, in a single-centre registry, we studied the mortality and the outcome of 512 consecutive patients > 75 years old who underwent PCI, between January 1st 2000 and December 31st 2001. Clinical endpoints included in-hospital mortality; major adverse cardiovascular and cerebro-vascular events (MACCE) defined by the components of death, myocardial infarction, stroke, and repeat coronary revascularisation (target vessel revascularisation or not) by surgery or PCI, within the hospitalisation period and at long-term follow up. We compared 315 patients 75-79 years old (group I) with 197 patients > 80 years old (group II). In-hospital mortality and MACCE rates were not different between the two groups. Independent predictors of in-hospital major events found by multivariate analysis were: ST-segment elevation myocardial infarction or STEMI (Odds Ratio [OR]=2.58, 95% CI=1.15-5.78), left ventricular ejection fraction or LVEF <40% (OR=4.98, 95% CI=2.19-11.36) and prior coronary artery bypass grafting or CABG (OR=3.13, 95% CI=1.06-9.26). Mean long-term follow-up was 51.3 months. Death was significantly more frequent in the older group (42% vs 26%, p<0.0001). Independent predictors of long-term mortality found by multivariate analysis were: LVEF < 40% (Hazard Ratio=4.12, 95% CI=2.69-6.32), creatinine rate (HR=1.00, 95% CI=1.00-1.006) use cut-off see table and prior carotid surgery or stroke (HR=2.2, 95% CI=1.19-4.14). CONCLUSIONS Although age is not an independent predictive factor of morbidity or mortality, co-morbidities in the elderly strongly influence long-term clinical outcomes after PCI.
Collapse
Affiliation(s)
- N Boudou
- Cardiology Department, Rangueil Hospital, Toulouse, France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Chabbert V, Carrie D, Bennaceur M, Maupas E, Lauwers V, Mhem M, Lhermusier T, Elbaz M, Joffre F, Rousseau H, Puel J. Evaluation of in-stent restenosis in proximal coronary arteries with multidetector computed tomography (MDCT). Eur Radiol 2006; 17:1452-63. [PMID: 17115159 DOI: 10.1007/s00330-006-0510-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2006] [Revised: 09/20/2006] [Accepted: 10/12/2006] [Indexed: 11/28/2022]
Abstract
The purpose of this study was to assess the ability of 16-slice computed tomography (CT) to detect in-stent restenosis of proximal coronary arteries. From November 2002 to April 2004, 134 consecutive patients with proximal stents (3.25 +/- 0.47 mm) were prospectively studied. Multidetector CT (MDCT) was performed 24 h (baseline) and 6 months after angioplasty and analysed by two radiologists blinded to the results of the coronary angiography. Sensitivity, specificity, positive and negative predictive values for in-stent restenosis were compared with conventional quantitative coronary angiography (QCA). Stenosis with a diameter >or=50% was considered diagnostic of in-stent restenosis. The CT analysis was performed in 131 and 114 patients at baseline and 6 months, respectively. The in-stent lumen was evaluable in 111 (121 stents) and 99 patients (108 stents) at baseline and 6 months, respectively. The prevalence of in-stent restenosis was 22.5%. Restenoses were correctly identified in 91.7 and 87.5% by the two radiologists. The sensitivity, specificity, positive and negative predictive values for the assessment of significant in-stent restenosis were 92, 67, 43, 97% and 87, 66, 41, 95% for the radiologists, respectively. MDCT is a potential non-invasive technique for the screening of in-stent restenosis of proximal coronary arteries that needs further improvements.
Collapse
Affiliation(s)
- V Chabbert
- Department of Radiology, CHU Rangueil, 1 avenue Jean-Poulhes TSA 50032, 31059 Toulouse Cedex 9, France.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|