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1.
Ann Cardiol Angeiol (Paris) ; 63(6): 451-4, 2014 Dec.
Artigo em Francês | MEDLINE | ID: mdl-25450994

RESUMO

Platypnea-orthodeoxia is a rare clinical condition which must be examined as a differential diagnosis for any bout of faintness occurring during standing or dyspnea that is exacerbated by standing. This syndrome is often associated with a patent foramen ovale. Its physiopathology is not univocal and the association of many anatomical criteria seems to be mandatory. Contrast echocardiography confirms diagnosis and closure of the patent foramen ovale during interventional catheterization and is currently the therapeutic method of choice. After closure of the foramen ovale, clinical improvement is spectacular and durable.


Assuntos
Dispneia/etiologia , Forame Oval Patente/cirurgia , Hipóxia/etiologia , Postura , Síncope/etiologia , Idoso , Cateterismo Cardíaco , Forame Oval Patente/diagnóstico , Humanos , Masculino , Recidiva , Dispositivo para Oclusão Septal , Ultrassonografia de Intervenção
2.
Ann Cardiol Angeiol (Paris) ; 63(6): 460-4, 2014 Dec.
Artigo em Francês | MEDLINE | ID: mdl-25450996

RESUMO

Renal denervation which consists in the ablation of the sympathetic fibers located in the adventitia of renal arteries is a therapeutic strategy allowing improved arterial hypertension control in patients who do not respond to medical treatment. This technique is currently performed using the femoral approach in the majority of cases. The diameter and the length of the ablation catheters limit their use via the radial route. The most frequent peri-procedural complications are vascular problems. We report here two cases of renal denervation via the trans-humeral and trans-radial routes respectively.


Assuntos
Ablação por Cateter/métodos , Hipertensão/cirurgia , Artéria Renal/inervação , Simpatectomia/métodos , Idoso , Anti-Hipertensivos/uso terapêutico , Resistência a Medicamentos , Humanos , Masculino , Pessoa de Meia-Idade
3.
Ann Cardiol Angeiol (Paris) ; 62(6): 384-91, 2013 Dec.
Artigo em Francês | MEDLINE | ID: mdl-24182849

RESUMO

Arterial hypertension is the largest single contributor to global mortality, and is poorly controlled in approximately 50% of patients despite lifestyle and pharmacologic interventions. Randomized clinical trials have demonstrated that catheter-based renal sympathetic denervation reduces blood pressure (BP) in patients with resistant hypertension. We sought to evaluate the efficacy of this novel therapy in "Real World" clinical practice. Consecutive patients with treatment-resistant primary hypertension, as defined as home BP>160 mmHg despite treatment with ≥3 antihypertensive drugs, were selected for denervation following renal artery screening. Ambulatory and home BP monitoring was performed in all patients prior to and following percutaneous renal sympathetic denervation. In total, 35 patients were selected for catheter-based renal sympathetic denervation. The mean age was 63.6 ± 11.7 years, 37.1% were women, 37.1% were diabetic, and 11.4% had renal impairment (GFR<45 mL/min). The basal BP (home or ambulatory) was 179.1 ± 20.75/99.66 ± 19.76 mmHg, despite an average of 4.91 ± 0.98 medications per patient. Successful bilateral sympathetic denervation was performed in 33/35 patients (1 renal artery stenosis on angiography [not ablated], 1 patient with renal artery spasm [unilateral denervation]), with an average 5.9 ± 1.6 ablations per renal artery. No procedural complications occurred. At 6 months, blood pressure was 15.5 ± 22.37/87.76 ± 13.97 mmHg (P<0.01). At 2 years follow-up, systolic blood pressure (ABPM or Home BP) was 143.8 ± 15.30 mmHg (P<0.0001) and diastolic 83.42 ± 12.80 mmHg (P=0.0004). There were no adverse events during follow-up, and no deterioration in renal function was observed. Catheter-based renal denervation is safe and efficacious treatment, which results in significant reductions in blood pressure in patients with treatment-resistant hypertension, stable at 2 years follow-up. These results are applicable to real-world patient populations.


Assuntos
Hipertensão/cirurgia , Artéria Renal/cirurgia , Simpatectomia , Idoso , Anti-Hipertensivos/uso terapêutico , Ablação por Cateter , Diabetes Mellitus Tipo 2/complicações , Feminino , Seguimentos , França , Humanos , Hipertensão/tratamento farmacológico , Hipertensão/etiologia , Rim/inervação , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto , Artéria Renal/inervação , Fatores de Risco , Simpatectomia/métodos , Resultado do Tratamento
4.
Ann Cardiol Angeiol (Paris) ; 62(6): 392-7, 2013 Dec.
Artigo em Francês | MEDLINE | ID: mdl-24182850

RESUMO

BACKGROUND: The mother and child "5-in-6" technique using the Heartrail II catheter is a novel tool allowing stent delivery in challenging lesions, when conventional techniques have failed. METHODS: A total of 147 consecutive patients underwent percutaneous coronary intervention (PCI) using the "5-in-6" Heartrail II catheter was restrospectively identified in the Institut Cardiovasculaire Paris Sud, (Jacques-cartier hospital), Institut hospitalier Claude-Galien (Claude-Galien hospital) and European hospital of Paris between July 2009 and September 2012. RESULTS: Ten interventional cardiologists treated 147 patients with the new device. The patients mean age was 68.5 ± 21.5 years, 78% were men. Radial access was used in 128 cases (87.9%). The treated vessels were the right coronary artery in 82%, left anterior descending in 22%, left circumflex in 18%, marginal branch in 9%, the posterior descending artery in three patients, retroventricular artery in one patient and a saphenous graft in two patients. Most lesions (70%) had American Heart Association/American College of Cardiology (AHA/ACC) type B2 or C, and greater than 50% were located in distal vessel segments. Mean lesion length was 16 ± 4 mm, which is indicative of long lesion. Most (62%) lesions were moderately to heavily calcified and 22 (14%) were chronic total occlusions. Problems with stent delivery were due to poor guide catheter support or excessive calcification. Introduction of the "Heartrail II" catheter allowed successful stent delivery in 139 cases (94%). CONCLUSION: The "5 in 6" Heartrail II catheter is a simple and easy-to-use device that can improve the success of stent delivery in challenging coronary interventions.


Assuntos
Angioplastia Coronária com Balão/instrumentação , Cateteres Cardíacos , Cardiologia/instrumentação , Doença da Artéria Coronariana/terapia , Stents , Idoso , Idoso de 80 Anos ou mais , Angioplastia Coronária com Balão/métodos , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paris , Estudos Retrospectivos , Resultado do Tratamento
5.
Ann Cardiol Angeiol (Paris) ; 61(6): 405-12, 2012 Dec.
Artigo em Francês | MEDLINE | ID: mdl-23092523

RESUMO

BACKGROUND: Transradial intervention of coronary lesion is increasing in frequency and is associated with lower major vascular access site complications. However, the small size of the radial artery is a major limitation of this technique, especially for bifurcation lesions, because 6-French guiding catheters are necessary to optimize the technique. A Sheathless guiding catheter has recently been introduced, optimizing a large lumen with a small size. OBJECTIVES: The aim of this study is to report our preliminary experience performing bifurcated transradial interventions using a 6.5 French Sheathless guide catheter. PATIENTS AND METHODS: From March 2009 to February 2012 in three hospitals, 46 consecutive patients were enrolled in this study who underwent transradial approach (TRA) for percutaneous bifurcation coronary interventions using the 6.5 French Sheathless Eaucath guiding catheter system because of small radial artery caliber. RESULTS: In this study, 46 patients were enrolled with mean age of 72.13 ± 16.41 years. The majority of patients were females with sex-ratio 0.53. Procedural success using the 6.5 French Sheathless guide catheter system was 100 % with no cases requiring conversion to a conventional guide and catheter system. During procedures, adjunctive devices used in this cohort included IVUS (2 patients), 35 bifurcated lesions were treated with a kissing-balloon technique in the group of 46 patients undergoing bifurcation PCIs, one patient required rotational atherectomy, thrombus-aspiration catheters had used in four patients, FFR-guided angiography in four patients. We report one case of chronic total occlusion bifurcated lesion successfully treated using this hydrophilic catheter. There were no radial artery site complications. CONCLUSION: The treatment of coronary bifurcation lesions with 6.5 French Sheathless guiding catheter by transradial approach is feasible and appears safe in this multicenter study.


Assuntos
Angioplastia Coronária com Balão/instrumentação , Aterectomia Coronária/instrumentação , Cateteres Cardíacos , Doença da Artéria Coronariana/terapia , Idoso , Idoso de 80 Anos ou mais , Algoritmos , Angioplastia Coronária com Balão/métodos , Aterectomia Coronária/métodos , Estudos de Coortes , Angiografia Coronária , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/patologia , Estudos de Viabilidade , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade , Artéria Radial , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Resultado do Tratamento
6.
Ann Cardiol Angeiol (Paris) ; 60(6): 354-60, 2011 Dec.
Artigo em Francês | MEDLINE | ID: mdl-22040858

RESUMO

Arterial hypertension is a major healthcare issue affecting between 30 and 40% of the adult population in industrialized countries. Despite the availability of numerous pharmaceutical treatments, arterial hypertension often remains uncontrolled. A non-negligible percentage of patients are refractory to multiple-drug therapy, which exposes them to an increased risk of cardiovascular events. Percutaneous, renal denervation using a catheter connected to a low energy radiofrequency generator has proven effective in decreasing arterial pressure in patients resistant to medical therapy, by reducing afferent nerve activity. In order to be eligible for this therapeutic approach, patients must have uncontrolled essential hypertension despite treatment with a combination of three anti-hypertensive drugs including a diuretic agent, and ≥ 45mL/min glomerular filtration rate. The initial registry study demonstrated that catheter-based sympathetic renal denervation was a simple and safe procedure resulting in a significant and durable reduction in arterial pressure. Subsequently, a randomized controlled trial (the Symplicity HTN-2 trial) showed a mean 32/12 mmHg decrease in blood pressure measurements in the group of patients who underwent renal denervation whereas no difference was observed in the control group. The reduction in blood pressure was still present at 24-month follow-up. No procedure-related complications were reported and no instances of renal artery stenosis or aneurysmal dilatation were evidenced during the follow-up period. No cases of renal function impairment or deterioration were recorded. This technique seems to be a promising strategy in patients suffering from this serious condition. In order to demonstrate the actual benefit of this technique, we report the case of two patients who underwent renal denervation in our institution.


Assuntos
Hipertensão/cirurgia , Artéria Renal/inervação , Artéria Renal/cirurgia , Simpatectomia , Adulto , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea/efeitos dos fármacos , Monitorização Ambulatorial da Pressão Arterial , Diuréticos/uso terapêutico , Quimioterapia Combinada , Feminino , Seguimentos , Taxa de Filtração Glomerular , Humanos , Hipertensão/tratamento farmacológico , Hipertensão/fisiopatologia , Rim/inervação , Rim/cirurgia , Masculino , Pessoa de Meia-Idade , Procedimentos Neurocirúrgicos , Artéria Renal/fisiopatologia , Fatores de Risco , Simpatectomia/métodos , Resultado do Tratamento
8.
Ann Cardiol Angeiol (Paris) ; 57(6): 371-5, 2008 Dec.
Artigo em Francês | MEDLINE | ID: mdl-18986644

RESUMO

The cardiovascular risk is the main cause of mortality and is increasing with age in women. In old women, this risk is similar to men. Many cardiovascular treatments are used in women without a clear demonstration of their efficiency in this population. It is only extrapolations of studies enrolling a large majority of males (more than 85%). It is very important to improve our therapeutic strategies in women, for all clinical presentations (stable angina or acute coronary syndromes), to perform dedicated studies. In fact, the rate of success of coronary angioplasty in women is similar to men but the prognosis is worse. This is partly explained by a waiting-game in the strategy and some anatomic differences such as smaller vessels diameters and also a high rate of vascular complications. To decrease this risk of vascular complications, the use of transradial seems to be a good solution. In another hand, in women, the use of drug eluting stent (DES) gives good results comparable to men. But no study has been dedicated to this group of patients.


Assuntos
Angioplastia Coronária com Balão , Doença da Artéria Coronariana/terapia , Síndrome Coronariana Aguda/terapia , Angina Pectoris/terapia , Feminino , Humanos , Fatores Sexuais
9.
Heart ; 94(3): 322-8, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-17761505

RESUMO

BACKGROUND: The impact of incomplete stent apposition (ISA) after drug-eluting stent implantation determined by intravascular ultrasound (IVUS) on late clinical events is not well defined. OBJECTIVE: To evaluate the clinical impact of ISA after sirolimus-eluting stent (SES) placement during a follow-up period of 4 years. DESIGN: Pooled analysis from the RAVEL, E-SIRIUS and SIRIUS trials, three randomised, multicentre studies comparing SES and bare-metal stents (BMS). METHODS: IVUS at angiographic follow-up was available in 325 patients (SES: n = 180, BMS: n = 145). IVUS images were reviewed for the presence of ISA defined as one or more unapposed stent struts. Clinical follow-up was available for a 4-year period in all patients. Frequency, predictors and clinical sequel of ISA at follow-up after SES and BMS implantation were determined. RESULTS: ISA at follow-up was more common after SES (n = 45 (25%)) than after BMS (n = 12 (8.3%), p<0.001). Canadian Cardiology Society class III or IV angina at stent implantation (odds ratio (OR) = 4.69, 95% CI 2.15 to 10.23, p<0.001) and absence of diabetes (OR = 3.42, 95% CI 1.05 to 11.1, p = 0.041) were predictors of ISA at follow-up after SES placement. Rate of myocardial infarction tended to be slightly higher for ISA than for non-ISA patients. When SES patients only were considered, major adverse cardiac event free survival at 4 years was identical for those with and without ISA at follow-up (11.1% vs 16.3%, p = 0.48). CONCLUSIONS: ISA at follow-up is more common after SES implantation than after BMS implantation. Considering the current very sensitive IVUS definition, ISA appears to be an IVUS finding without significant impact on the incidence of major adverse cardiac events even during long-term follow-up.


Assuntos
Reestenose Coronária/prevenção & controle , Trombose Coronária/etiologia , Stents Farmacológicos , Angioplastia Coronária com Balão/efeitos adversos , Angiografia Coronária/métodos , Reestenose Coronária/diagnóstico por imagem , Trombose Coronária/diagnóstico por imagem , Stents Farmacológicos/efeitos adversos , Métodos Epidemiológicos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto , Sirolimo/administração & dosagem , Fatores de Tempo , Moduladores de Tubulina/administração & dosagem , Ultrassonografia de Intervenção/métodos
10.
Arch Mal Coeur Vaiss ; 100(9): 729-35, 2007 Sep.
Artigo em Francês | MEDLINE | ID: mdl-18032999

RESUMO

The extent of gadolinium enhancement assessed by cardiac MRI is an accepted marker of myocardial necrosis. The correlation between late enhancement and other parameters of infarct size after myocardial infarction have previously been described. However, the prognostic value of the extent of late enhancement in terms of myocardial recovery remains controversial especially in revascularised infarcts analysed by early MRI. In order to clarify this question the authors compared the results of MRI at two days and four months after myocardial infarction benefiting from early revascularisation. Between July 2002 and November 2004, the authors included patients with myocardial infarction treated by primary angioplasty and examined by MRI (Siemens Symphony 1.5 T) at two days and three to five months after myocardial infarction. The left ventricular ejection fraction, volume, mass and wall thickness were measured. Perfusion at first passage (PP) and late enhancement were analysed after injection of 20 cc of gadolinium. An eight segment short axis model was used for PP and analysis of late enhancement. Each segment was assessed for transmural or subendocardial hypoperfusion for PP assessment and the wall thickness with late enhancement (1-25%, 26-50%, 51-75%, and 76-100%) was measured to calculate the percentage of myocardial mass showing late enhancement. Thirty-nine patients (thirty three men) were included. The average age was 59 +/- 10 years. TIMI III flow was obtained in all but one (TIMI II) patient. Cardiac MRI was performed 2.1 +/- 1.5 days and 4.6 +/- 1.7 months after myocardial infarction. The ejection fraction increased from 48.7 +/- 12.6% to 54.2 +/- 11.1%, p<0.05, and was related to infarct size (p<0.01). Forty-eight per cent of dysfunctional segments at the initial MRI improved their contractility and the extent of transmural late enhancement was inversely correlated with wall thickening at initial (p<0.01) and four month MRI (p<0.01). The PP improved significantly (regression from 9.5 +/- 8.2% to 2.8 +/- 4.1% of segments with abnormal myocardial perfusion, p<0.01). The late enhancement with respect to total myocardial mass decreased from 20.0 +/- 10.7% to 13.0 +/- 8.1%, p<0.01). Despite restoring TIMI III flow, early myocardial reperfusion is incomplete and improves in the medium term. The authors also observed a reduction in late enhancement at four months, indicating that the results immediately after myocardial infarction may overestimate the infarct size and that this sign does not represent necrotic tissue alone but also viable myocardium with a potential for recovery.


Assuntos
Angioplastia , Coração/fisiopatologia , Imageamento por Ressonância Magnética , Infarto do Miocárdio/cirurgia , Revascularização Miocárdica , Miocárdio/patologia , Circulação Coronária , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
11.
Arch Mal Coeur Vaiss ; 100(10): 827-32, 2007 Oct.
Artigo em Francês | MEDLINE | ID: mdl-18033012

RESUMO

Renal artery angioplasty using the same techniques employed for coronary arteries has developed considerably. A register was set up in France to evaluate the efficacy of this treatment for improving renal function and lowering blood pressure in cardiac patients. Between 2001 and 2005, 205 patients (234 lesions) were treated in 14 centres (mean age: 69.2 +/- 10.4 years, 59% male). All of the patients had hypertension and the majority of them (171) had renal failure (creatinine clearance<90 ml/min). Direct implantation of a stent was performed in 75.2% of the cases, successfully in 196 patients (96%) with 220 lesions (95.2%). The complications encountered were segmental renal infarction in two patients (0.9%), and four cases of minor vascular complications at the puncture site (2%). The mean value for pre-implantation creatinine clearance was 54.6 +/- 32.8 ml/min and 58.1 +/- 36.0 post- implantations. The duration of follow up was 5.9 +/- 2.7 months. Mortality was 3.5% (seven patients, of whom two died from renal causes). The mean systolic and diastolic blood pressure was 142.2 +/- 16.2 and 78.9 +/- 9.5 respectively versus 164.9 +/- 25.2 and 89.1 +/- 14.8 before treatment (p<0.0001). A non-significant improvement in creatinine clearance at six months was also observed in patients with renal failure prior to treatment: 48.7 +/- 17.1 ml/min vs. 69.2 +/- 160.3. Renal artery stenting in cardiac patients with renal artery stenosis is associated with a very high success rate, with few complications and an improvement in hypertension and renal function.


Assuntos
Obstrução da Artéria Renal/cirurgia , Stents , Idoso , Idoso de 80 Anos ou mais , Feminino , França , Humanos , Hipertensão/complicações , Masculino , Pessoa de Meia-Idade , Insuficiência Renal/complicações
13.
Heart ; 91(4): 507-12, 2005 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15772214

RESUMO

OBJECTIVE: To assess the balance between costs and effects of the sirolimus eluting stent in the treatment of single native de novo coronary lesions in the RAVEL (randomised study with the sirolimus eluting Bx Velocity balloon expandable stent in the treatment of patients with de novo native coronary artery lesions) study. DESIGN: Multicentre, double blind, randomised trial. SETTING: Percutaneous coronary intervention for single de novo coronary lesions. PATIENTS: 238 patients with stable or unstable angina. INTERVENTIONS: Randomisation to sirolimus eluting stent or bare stent implantation. MAIN OUTCOME MEASURES: Patients were followed up to one year and the treatment effects were expressed as one year survival free of major adverse cardiac events (MACE). Costs were estimated as the product of resource utilisation and Dutch unit costs. RESULTS: At one year, the absolute difference in MACE-free survival was 23% in favour of the sirolimus eluting stent group. At the index procedure, sirolimus eluting stent implantation had an estimated additional procedural cost of 1286. At one year, however, the estimated additional cost difference had decreased to 54 because of the reduction in the need for repeat revascularisations in the sirolimus group (0.8% v 23.6%; p < 0.01). After adjustment of actual results for the consequences of angiographic follow up (correction based on data from the BENESTENT (Belgium Netherlands stent) II study), the difference in MACE-free survival was estimated at 11.1% and the additional one year costs at 166. CONCLUSIONS: The one year data from RAVEL suggest an attractive balance between costs and effects for sirolimus eluting stents in the treatment of single native de novo coronary lesions. The cost effectiveness of drug eluting stents in more complex lesion subsets remains to be determined.


Assuntos
Estenose Coronária/terapia , Imunossupressores/administração & dosagem , Sirolimo/administração & dosagem , Stents/economia , Angiografia Coronária/economia , Reestenose Coronária/diagnóstico por imagem , Reestenose Coronária/economia , Reestenose Coronária/prevenção & controle , Estenose Coronária/economia , Análise Custo-Benefício , Intervalo Livre de Doença , Método Duplo-Cego , Feminino , Humanos , Imunossupressores/uso terapêutico , Masculino , Metais , Países Baixos , Sirolimo/uso terapêutico , Propriedades de Superfície
16.
Circulation ; 106(15): 1949-56, 2002 Oct 08.
Artigo em Inglês | MEDLINE | ID: mdl-12370218

RESUMO

BACKGROUND: Restenosis remains the major limitation of coronary catheter-based intervention. In small vessels, the amount of neointimal tissue is disproportionately greater than the vessel caliber, resulting in higher restenosis rates. In the Randomized Study With the Sirolimus-Eluting Bx Velocity Balloon-Expandable Stent (RAVEL) trial, approximately 40% of the vessels were small (<2.5 mm). The present study evaluates the relationship between angiographic outcome and vessel diameter for sirolimus-eluting stents. METHODS AND RESULTS: Patients were randomized to receive either an 18-mm bare metal Bx VELOCITY (BS group, n=118), or a sirolimus-eluting Bx VELOCITY stent (SES group, n=120). Subgroups were stratified into tertiles according to their reference diameter (RD; stratum I, RD <2.36 mm; stratum II, RD 2.36 mm to 2.84 mm; stratum III, RD >2.84 mm). At 6-month follow-up, the restenosis rate in the SES group was 0% in all strata (versus 35%, 26%, and 20%, respectively, in the BS group). In-stent late loss was 0.01+/-0.25 versus 0.80+/-0.43 mm in stratum I, 0.01+/-0.38 versus 0.88+/-0.57 mm in stratum II, and -0.06+/-0.35 versus 0.74+/-0.57 mm in stratum III (SES versus BS). In SES, the minimal lumen diameter (MLD) remained unchanged (Delta -0.72 to 0.72 mm) in 97% of the lesions and increased (=late gain, DeltaMLD <-0.72 mm) in 3% of the lesions. Multivariate predictors for late loss were treatment allocation (P<0.001) and postprocedural MLD (P= 0.008). CONCLUSIONS: Sirolimus-eluting stents prevent neointimal proliferation and late lumen loss irrespective of the vessel diameter. The classic inverse relationship between vessel diameter and restenosis rate was seen in the bare stent group but not in the sirolimus-eluting stent group.


Assuntos
Angioplastia Coronária com Balão , Angiografia Coronária , Reestenose Coronária/prevenção & controle , Imunossupressores/uso terapêutico , Sirolimo/uso terapêutico , Stents , Reestenose Coronária/diagnóstico por imagem , Vasos Coronários/patologia , Método Duplo-Cego , Humanos , Imunossupressores/administração & dosagem , Sirolimo/administração & dosagem
17.
Arch Mal Coeur Vaiss ; 95(12): 1188-94, 2002 Dec.
Artigo em Francês | MEDLINE | ID: mdl-12611039

RESUMO

The annual inquiry by the "Angiography and Interventional Cardiology Group" of the French Society of Cardiology has allowed the evolution of interventional cardiology in France between 1991 and 2000 to be monitored. The results of the 2000 inquiry have been analysed in particular. The number of coronarography centres has increased by 27% in 10 years, growing from 173 in 1991 to stabilise at 220, and the number of centres performing percutaneous coronary angioplasty grew from 128 to 175 (+27%) at the same time. The number of coronarographies increased by 79% (131,636 to 236,111), and angioplasties increased by 197% (30,885 to 91,901). In the year 2000, angiographic procedures represented 39% of coronarographies, against 23% in 1991. Endoprosthesis implantation constitutes the principal revolution of this decade, the number of procedures growing from 393 to 77,388 between 1991 and 2000, some 84.2% of angioplasties, and a total number of endoprostheses of 107,869 (1.39 stents per procedure). The other revascularisation techniques remain anecdotal, representing only 1.9% of procedures. In 2000, at the 135 centres supplying detailed information, direct stenting represented 38.5% of procedures, and the indications for restenosis were 9.9%. The number of interventions performed in the public or private sector is almost identical for each category, only morphological or functional explorations remain the privilege of the public sector in the university setting. The activity of the University Hospitals Centres has noticeably and regularly decreased since 1991, falling from 39.2% to 28.7% of coronarographies and from 41.8% to 31.1% of angioplasties in 2000.


Assuntos
Angioplastia/estatística & dados numéricos , Cardiologia/tendências , Angiografia Coronária/estatística & dados numéricos , Estenose Coronária/terapia , França , Implante de Prótese de Valva Cardíaca/estatística & dados numéricos , Humanos , Estudos Retrospectivos , Stents
18.
Circulation ; 104(25): 3039-45, 2001 Dec 18.
Artigo em Inglês | MEDLINE | ID: mdl-11748097

RESUMO

BACKGROUND: Although several randomized trials have demonstrated that coronary stenting improves angiographic and clinical outcomes for patients with acute myocardial infarction (AMI), the cost-effectiveness of this practice is unknown. The objective of the present study was to evaluate the long-term costs and cost-effectiveness (C/E) of coronary stenting compared with primary balloon angioplasty as treatment for AMI. Methods and Results- Between December 1996 and November 1997, 900 patients with AMI were randomized to undergo balloon angioplasty (PTCA, n=448) or coronary stenting (n=452). Detailed resource utilization and cost data were collected for each patient's initial hospitalization and for 1 year after randomization. Compared with conventional PTCA, stenting increased procedural costs by approximately $2000 per patient ($6538+/-1778 versus $4561+/-1598, P<0.001). During the 1-year follow-up period, stenting was associated with significant reductions in the need for repeat revascularization and rehospitalization. Although follow-up costs were significantly lower with stenting ($3613+/-7743 versus $4592+/-8198, P=0.03), overall 1-year costs remained approximately $1000/patient higher with stenting than with PTCA ($20 571+/-10 693 versus 19 595+/-10 990, P=0.02). The C/E ratio for stenting compared with PTCA was $10 550 per repeat revascularization avoided. In analyses that incorporated recent changes in stent technology and pricing, the 1-year cost differential fell to <$350/patient, and the C/E ratio improved to $3753 per repeat revascularization avoided. The cost-utility ratio for primary stenting was <$50 000 per quality-adjusted life year gained only if stenting did not increase 1-year mortality by >0.2% compared with PTCA. CONCLUSIONS: As performed in Stent-PAMI, primary stenting for AMI increased 1-year medical care costs compared with primary PTCA. The overall cost-effectiveness of primary stenting depends on the societal value attributed to avoidance of symptomatic restenosis, as well as on the relative mortality rates of primary PTCA and stenting.


Assuntos
Angioplastia Coronária com Balão , Infarto do Miocárdio/terapia , Stents , Idoso , Angioplastia Coronária com Balão/economia , Análise Custo-Benefício , Seguimentos , Humanos , Pessoa de Meia-Idade , Infarto do Miocárdio/economia , Infarto do Miocárdio/fisiopatologia , Stents/economia , Análise de Sobrevida
19.
Am J Cardiol ; 88(10): 1085-90, 2001 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-11703949

RESUMO

The mortality benefit of thrombolytic therapy for acute myocardial infarction (AMI) is strongly dependent on time to treatment. Recent observations suggest that time to treatment may be less important with primary percutaneous transluminal coronary angioplasty (PTCA). Patients with AMI of <12 hours duration, without cardiogenic shock, who were treated with primary PTCA from the Stent PAMI Trial (n = 1,232) were evaluated to assess the effect of time to reperfusion on outcomes. Thrombolysis In Myocardial Infarction grade 3 flow was achieved in a high proportion of patients regardless of time to treatment. Improvement in ejection fraction from baseline to 6 months was substantial with reperfusion at <2 hours but was modest and relatively independent of time to reperfusion after 2 hours (<2 hours, 12.3% vs > or =2 hours, 4.2%, p = 0.004). There were no differences in 1- or 6-month mortality by time to reperfusion (6-month mortality: <2 hours [5.5%], 2 to <4 hours [4.6%], 4 to <6 hours [4.5%], >6 hours [4.2%], p = 0.97). There were also no differences in other clinical outcomes by time to reperfusion, except that reinfarction and infarct artery reocclusion at 6 months were more frequent with later reperfusion. The lack of correlation between time to treatment and mortality in patients without cardiogenic shock suggests that the survival benefit of primary PTCA may be related principally to factors other than myocardial salvage. These data may also have implications regarding the triage of patients with AMI for primary PTCA.


Assuntos
Angioplastia Coronária com Balão/métodos , Infarto do Miocárdio/terapia , Reperfusão Miocárdica , Stents , Idoso , Feminino , Humanos , Masculino , Estudos Multicêntricos como Assunto , Infarto do Miocárdio/mortalidade , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Tempo , Resultado do Tratamento
20.
J Am Coll Cardiol ; 38(6): 1614-21, 2001 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-11704371

RESUMO

OBJECTIVES: The goal of this study was to compare the impact of primary stenting or percutaneous transluminal coronary angioplasty (PTCA) on health-related quality of life (HRQOL) in patients undergoing direct angioplasty for acute myocardial infarction (AMI). BACKGROUND: Previous studies have demonstrated that coronary stenting reduces clinical and angiographic restenosis compared with PTCA. However, the impact of stenting on HRQOL from the patient's perspective remains unknown. METHODS: We administered the Seattle Angina Questionnaire and the Medical Outcomes Study Short-form Survey at 1, 6 and 12 months after initial treatment to all North American patients in the Stent-Primary Angioplasty for Myocardial Infarction trial (Stent-PAMI) (n = 509)-a randomized trial comparing primary stenting to conventional PTCA for patients with AMI. RESULTS: At one month, most HRQOL measures were similar for the two groups, but stent patients reported less bodily pain than PTCA patients (p = 0.03). At six-month follow-up, stenting resulted in significant improvements in several dimensions of HRQOL including reduced anginal frequency and bodily pain as well as improved disease perception (all p < or = 0.03) and a trend towards better anginal stability (p = 0.056). By 12-month follow-up, however, none of these differences remained statistically significant. These differences in HRQOL were largely explained by the greater need for ischemia-driven target-vessel repeat revascularization procedures in PTCA patients during the first six months (16.0% vs. 6.2%, p < 0.001). CONCLUSIONS: In patients undergoing revascularization for AMI, initial stent placement is associated with improvements in several dimensions of health status during the first six months of follow-up. In the absence of differences in mortality, these findings add to the overall argument in favor of initial stenting in patients treated with mechanical reperfusion for myocardial infarction.


Assuntos
Angioplastia Coronária com Balão , Infarto do Miocárdio/terapia , Qualidade de Vida , Stents , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/mortalidade , Medição da Dor , Inquéritos e Questionários , Resultado do Tratamento
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