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1.
Bone Marrow Transplant ; 36(7): 649-54, 2005 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-16044135

RESUMEN

Allogeneic hematopoietic stem cell transplantation (SCT) is a widely used, cost-intensive procedure. Although pretransplant nonmyeloablative (NMA) or reduced-intensity conditioning regimens appear very promising, prospective studies comparing this approach with the conventional myeloablative (MA) approach in specific hematologic diseases are necessary, especially in patients in whom the conventional approach is not contraindicated. Cost may be an important factor in the decision-making process. We compared the costs of MA and NMA transplants in patients with acute myeloid leukemia (AML). We estimated 1-year resource utilization in 12 consecutive MA patients (median age: 39 years) and in 11 consecutive NMA patients (median age: 58 years) who underwent HLA-identical sibling SCT for AML. Resources care expenses were valued using the average daily rate for personnel costs, supplies, and room costs. Other data were directly collected from the patients' charts. Despite a trend for lower costs in NMA patients during the first 6 months, costs during the 6-12-month period were significantly higher after NMA due to late complications and readmissions (P=0.03). Finally, mean 1-year costs were not different in MA and NMA patients (P=0.75). Prospective studies comparing conventional and NMA approaches in homogeneous populations should include economic items.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas/economía , Leucemia Mieloide Aguda/terapia , Trasplante de Células Madre/métodos , Trasplante Homólogo/economía , Adulto , Anciano , Estudios de Cohortes , Femenino , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Enfermedad Veno-Oclusiva Hepática/etiología , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Recurrencia , Inducción de Remisión , Factores de Tiempo , Acondicionamiento Pretrasplante , Trasplante Homólogo/efectos adversos
2.
Arch Mal Coeur Vaiss ; 98(12): 1212-8, 2005 Dec.
Artículo en Francés | MEDLINE | ID: mdl-16435600

RESUMEN

BACKGROUND: Propionibacterium acnes, a gram positive, anaerobic, skin commensal bacillus, is too often considered a biologic fluid contaminant, of blood cultures in particular. Its implication has been shown in various infections, including brain abscess, ocular infections, osteitis, and acne. It is also the cause of infective endocarditis (IE). METHODS: Retrospective, observational study of 11 patients with P. acnes IE, hospitalised between 1993 and 2001 at the Louis Pradel Hospital, Lyon-Bron, and review of 20 published cases. RESULTS: P. acnes IE is rare, though its prevalence is probably underestimated. It is most likely to affect men (71%), and affects all ages (children 4/31 cases). An entry point, probably cutaneous, is rarely confirmed. P. acnes IE often develops on valve prosthesis (42%), and embolisms are common (61%). The infective site is usually aortic (55%). The often-subtle symptoms and slow growth of the organism in vitro complicate the diagnosis, which is often made at a late stage, when valvular and peri-valvular destruction has become major. Despite the high sensitivity of P. acnes to most antimicrobials, a surgical intervention is very often needed (81%). The mortality is relatively high (15% to 27%). Examination of pathologic specimens by polymerase chain reaction increases the sensitivity and speed of its detection. The identification of P. acnes in a biologic specimen, valvular tissue in particular, requires a thorough knowledge of the clinical context before concluding to contamination, and mandates close surveillance of the patient. P. acnes can be the cause of IE long before it has been detected.


Asunto(s)
Endocarditis Bacteriana/diagnóstico , Infecciones por Bacterias Grampositivas/diagnóstico , Propionibacterium acnes , Anciano , Niño , Ecocardiografía Transesofágica , Endocarditis Bacteriana/microbiología , Endocarditis Bacteriana/mortalidad , Endocarditis Bacteriana/terapia , Femenino , Francia/epidemiología , Infecciones por Bacterias Grampositivas/microbiología , Infecciones por Bacterias Grampositivas/mortalidad , Infecciones por Bacterias Grampositivas/terapia , Humanos , Lactante , Masculino , Persona de Mediana Edad , Prevalencia , Propionibacterium acnes/aislamiento & purificación , Estudios Retrospectivos
3.
Arch Mal Coeur Vaiss ; 98(7-8): 795-9, 2005.
Artículo en Francés | MEDLINE | ID: mdl-16220750

RESUMEN

OBJECTIVE: To evaluate systolic blood pressure (SBP) control in hypertensive patients with a stable coronary heart disease (CHD) in general practice in France. METHODS: A survey was conducted in a sample of 206 general practitionners (GP) representative of the French medical population, in 2003 [LHYCORNE survey]. Each GP had to include 3 hypertensive patients, >18 years old, BP > or = 140/90 mmHg and/or treated for hypertension, and with evidence of CHD documented by myocardial infarction (MI) or angina pectoris (AP) [diagnosis previously established by a cardiologist]. Three office BP measurements were performed, the last two recorded. BP levels were considered as controlled by treatement if they were < 140/90 mmHg. RESULTS: 595 patients were included, 75% men mean age 66 years, 25% women mean age 73 years. All patients had a CHD: MI 46%, AP 54%; 533 (90%) had more than 2 cardiovascular risk factors: hyperlipidemia (411; 69%), smokers (375; 63%), diabetes (158; 27%). Mean BP was 140.7 +/- 14/80.8 +/- 9.7 mmHg; 553 (93%) of these hypertensive patients were treated, and 239 (40%) were considered as having a controlled SBP at the treshold of 140 mmHg: 47% in patients with previous MI and 38% with AP (p < 0.001). Diastolic BP (DBP) was <90 mmHg in 480 (81%) and pulse pressure was >65 mmHg in 202 (34%); 313 (53%) patients received a combination of three drugs or more; 354 (60%) had a beta-blocker, 260 (44%) a calcium channel blocker, 237 (40%) an ACE inhibitor, 287 (48%) other antihypertensive drugs (246 diuretics, 41%); 502 (84%) received antiplatelet therapy, 403 (68%) statins. CONCLUSION: This survey shows that systolic BP is not at goal in 6/10 hypertensive patients with stable CHD suggesting there is a place for a more effective combination therapy according to evidence-based medicine.


Asunto(s)
Antihipertensivos/uso terapéutico , Enfermedad Coronaria/complicaciones , Hipertensión/tratamiento farmacológico , Hipertensión/patología , Adulto , Anciano , Femenino , Francia , Encuestas Epidemiológicas , Humanos , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
4.
Am J Cardiol ; 63(8): 22D-25D, 1989 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-2537562

RESUMEN

A multicenter, randomized, double-blind, parallel-group trial was conducted to compare the effects of enalapril and digoxin on clinical signs and symptoms, as well as exercise capacity, in 142 patients with congestive heart failure classified as mild to severe (New York Heart Association functional classes II to IV). The patients received optimal treatment with digitalis and diuretics for 2 to 4 weeks. Thereafter, they were randomly assigned to receive either enalapril plus diuretics (n = 72) or digoxin plus diuretics (n = 70). After 8 weeks of treatment, a significant improvement in classification was observed in 22 of 63 patients (35%) in the enalapril group and in 17 of 61 (28%) in the digoxin group (difference not significant [NS]). Similarly, duration of exercise increased in both groups (p less than 0.005; p = NS between groups). Blood pressures decreased in the enalapril group (from 129 +/- 19/80 +/- 10 to 121 +/- 20/78 +/- 11 mm Hg; p less than 0.001), but not in the digoxin group (from 134 +/- 19/82 +/- 12 to 138 +/- 19/85 +/- 10 mm Hg; NS). Serum creatinine and electrolytes did not exhibit any significant change from baseline values, except for serum potassium, which increased slightly in the enalapril group (from 4.24 +/- 0.48 to 4.43 +/- 0.49 mmol/liter; p less than 0.05) and decreased slightly in the digoxin group (from 4.28 +/- 0.47 to 4.18 +/- 0.40 mmol/liter; p less than 0.05). Adverse events were reported in 13 patients (5 withdrawals) in the enalapril group and in 7 patients (2 withdrawals) in the digoxin group (p = NS).(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Digoxina/uso terapéutico , Enalapril/uso terapéutico , Insuficiencia Cardíaca/tratamiento farmacológico , Ensayos Clínicos como Asunto , Digoxina/efectos adversos , Método Doble Ciego , Enalapril/efectos adversos , Prueba de Esfuerzo , Insuficiencia Cardíaca/fisiopatología , Humanos , Persona de Mediana Edad , Estudios Multicéntricos como Asunto , Placebos , Distribución Aleatoria
5.
Invest Radiol ; 31(8): 523-31, 1996 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-8854199

RESUMEN

RATIONALE AND OBJECTIVES: For determining the optimum angulations of the x-ray beam with respect to the vascular morphology of a given patient, the authors present a solution combining a single-plane angiographic system and a dedicated procedure. METHODS: The clinical evaluation of the vessel profiling acquisitions focuses on qualitative appraisal and quantitative analysis of conventional and optimum projections. RESULTS: The qualitative evaluation demonstrates the pitfall for an operator to discern optimum from conventional projections. The 70% of preferences for vessel profiling bear witness to the constraints imposed occasionally by the optimum angulations, which may be impracticable for various reasons. However, vessel profiling yields lesions inspection at an optimum view, free of geometric foreshortening. Moreover, there is less risk of superimposition with other branches. From a quantitative standpoint, vessel profiling unveils the lesion with a length significantly longer than in conventional view. CONCLUSIONS: Vessel profiling offers a qualitative optimization of angiographic images and more exact quantitative analysis.


Asunto(s)
Angiografía Coronaria/métodos , Intensificación de Imagen Radiográfica/métodos , Angiocardiografía/métodos , Artefactos , Enfermedad Coronaria/diagnóstico por imagen , Vasos Coronarios/patología , Estudios de Evaluación como Asunto , Humanos , Procesamiento de Imagen Asistido por Computador , Fantasmas de Imagen , Programas Informáticos , Rayos X
6.
Cancer Chemother Pharmacol ; 45(5): 375-80, 2000.
Artículo en Inglés | MEDLINE | ID: mdl-10803920

RESUMEN

PURPOSE: The aim was to investigate in patients receiving doxorubicin whether any alteration in myocardial oxidative metabolism or blood flow as assessed by positron emission tomography (PET) could be observed either after the first dose of the drug, or during its chronic administration. METHODS: Six female non-heart-failure cancer patients treated with doxorubicin were included in a longitudinal study. Resting radionuclide cineangiography and PET scanning with carbon-11 acetate were performed the day before the initiation of doxorubicin treatment at a dosage of 50 mg/m2 every 3 weeks, and 3 weeks after the cumulative administration of 300 mg/m2 (chronic toxicity). In addition, PET was performed 24 h after the first administration of doxorubicin (evaluation of acute toxicity). Myocardial oxidative metabolism and blood flow were assessed by PET (acute and chronic toxicity), and left ventricular ejection fraction was measured by radionuclide angiography (chronic toxicity). RESULTS: Using PET for both acute and chronic toxicity evaluations, no significant effect of doxorubicin was observed either on the flux through the tricarboxylic acid (TCA) cycle or on myocardial blood flow. However, systolic left ventricular function showed a small but significant impairment after the administration of 300 mg/m2 of doxorubicin. CONCLUSIONS: Other hypotheses should be explored to better explain the predominant mechanisms of the cardiotoxicity of anthracyclines in humans.


Asunto(s)
Antibióticos Antineoplásicos/efectos adversos , Circulación Coronaria/efectos de los fármacos , Doxorrubicina/efectos adversos , Corazón/efectos de los fármacos , Miocardio/metabolismo , Neoplasias/tratamiento farmacológico , Anciano , Ciclo del Ácido Cítrico/efectos de los fármacos , Electrocardiografía/efectos de los fármacos , Femenino , Humanos , Estudios Longitudinales , Persona de Mediana Edad , Neoplasias/metabolismo , Oxidación-Reducción , Tomografía Computarizada de Emisión
7.
Surg Endosc ; 15(7): 755-6, 2001 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-11591984

RESUMEN

BACKGROUND: Following upon the recent development of minimally invasive coronary robotic surgery, we set out to evaluate the feasibility of bilateral internal mammary artery (IMA) harvesting using the voice-controlled AESOP 2000 video assisted robot. METHODS: The robot is placed on the right side of the patient. The left IMA is first totally video-harvested, with the arm of the robot crossing over the patient to reach the left chest. The voice-controlled movement of the arm allows the surgeon to obtain the best video image of the artery. After completion of the dissection, the arm is positioned on the right part of the chest. The right IMA is then harvested using the same technique. RESULTS: Two patients underwent harvest of a bilateral IMA using this technique. The time of dissection was 52 min and 86 min, respectively. CONCLUSION: This technique allows a more precise, faster, tremor-free dissection, as compared to a conventional thoracoscopic harvesting.


Asunto(s)
Puente de Arteria Coronaria/métodos , Robótica/métodos , Arterias Torácicas/cirugía , Cirugía Torácica Asistida por Video/métodos , Adulto , Estudios de Factibilidad , Humanos , Anastomosis Interna Mamario-Coronaria/métodos , Arterias Mamarias/cirugía , Persona de Mediana Edad , Robótica/estadística & datos numéricos , Cirugía Torácica Asistida por Video/estadística & datos numéricos , Factores de Tiempo
8.
Ultrasound Med Biol ; 24(6): 793-802, 1998 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-9740381

RESUMEN

Intravascular ultrasound imaging is able to provide direct images of the stent meshwork. However, a paradoxical question remains unanswered: Why is it not possible to correct or prevent implantation defects by ultrasound-guided implantation? We postulate that these discrepancies are due to image artifacts. We performed an in vitro experiment allowing detection, physical characterization, and computerized simulations of the various aspects of these artifacts. The width of the echo of a strut is variable, dependent on its distance from the transducer. The stent strut echo orientation is variable, and depends on the position of the transducer inside the stent. The stent contour image depends on the position of the transducer. In conclusion, knowledge of these stent intravascular ultrasound image artifacts enabled us to discriminate accurately between artifacts and real stent implantation defects, and are indispensable for accurate qualitative and quantitative analyses of stents.


Asunto(s)
Artefactos , Vasos Coronarios/diagnóstico por imagen , Stents , Ultrasonografía Intervencional , Arterias/diagnóstico por imagen , Simulación por Computador , Humanos , Procesamiento de Imagen Asistido por Computador
9.
Ultrasound Med Biol ; 19(7): 533-47, 1993.
Artículo en Inglés | MEDLINE | ID: mdl-8310550

RESUMEN

The ability of an intravascular ultrasound catheter to give cross-sectional images of vessel walls and surrounding tissues, and the behavior of ultrasound in heterogeneous media, are at the origin of degradation of image quality. Qualitative and quantitative analyses of in vivo studies are then operator-dependent and are limited by artifacts. We investigated these limitations by an in vitro study on plexiglass phantoms and segments of fresh arteries. We used a 20 MHz transducer mounted on the tip of a 4.8 F catheter and an interventional ultrasound system. The ultrasound beam is reflected onto the rotating transducer at 600 rotations per minute (RPM), creating 360 degrees real-time images (10 images/second). We then observed, analyzed and interpreted the most specific reasons for image artifacts: geometric distortions, multiple echoes, the point spread function (PSF) of the imaging system, near-field effects, "petal-shaped" effect, and ultrasound speckle. Various practical implications have resulted from this study. Only a thorough knowledge of how to avoid some of the most obvious pitfalls will enable the user to obtain maximum benefits from intravascular ultrasound imaging, and to appreciate its limitations.


Asunto(s)
Artefactos , Ultrasonografía Intervencional/métodos , Arterias/diagnóstico por imagen , Arterias/patología , Arteriosclerosis/diagnóstico por imagen , Arteriosclerosis/patología , Cateterismo , Humanos , Procesamiento de Imagen Asistido por Computador , Matemática , Modelos Estructurales , Transductores
10.
Clin Cardiol ; 15(6): 466-8, 1992 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-1617829

RESUMEN

Anomalous origin of left coronary vessel from the pulmonary artery is an almost universally fatal form of congenital heart disease unless appropriate corrective surgery is performed at an early age. A case was diagnosed in a symptomatic 44-year-old man who presented an impairment of systolic left ventricular function. The abnormality was successfully treated with ligation of the left coronary artery combined with left internal mammary artery anastomosis. Left ventricular function improved dramatically six months after surgery, both at rest and during exercise. Such an evolution suggests that surgery may be indicated not only in infants but also in adults with this congenital heart abnormality.


Asunto(s)
Circulación Coronaria/fisiología , Anomalías de los Vasos Coronarios/cirugía , Complicaciones Posoperatorias/fisiopatología , Arteria Pulmonar/anomalías , Función Ventricular Izquierda/fisiología , Adulto , Angiografía Coronaria , Ecocardiografía , Humanos , Anastomosis Interna Mamario-Coronaria , Masculino , Arteria Pulmonar/cirugía
11.
Arch Mal Coeur Vaiss ; 73(3): 227-37, 1980.
Artículo en Francés | MEDLINE | ID: mdl-6779738

RESUMEN

The prognosis of congestive cardiomyopathy was studied in 132 consecutive patients (110 male, 22 female, average age 45 +/- 11 years) in whom a thorough clinical evaluation had excluded a secondary cause. The patients presented with left ventricular failure, a history of systemic embolism, syncope or radiological cardiomegaly. Right (100 p. 100) and left (81 p. 100) heart catheterisation was performed and left ventricular endiastolic volumes (202 +/- 77 ml/m2) and ejection fractions (31 +/- 12 p. 100) calculated from angiography in the 30 degrees right anterior oblique projection. Regional abnormalities of contraction were observed in 32 patients. The average follow up period was 40,4 +/- 23,8 months. At the end of the study 48 patients (37 p. 100) had died and 2 had been lost to follow up. Survival rates were calculated by actuarial methods. Age, sex, the period they had been symptomatic, alcoholic intoxication and the degree of cardiac dilatation were not significant prognostic factors. Patients in Class IV NYHA had the worst prognosis: 63 p. 100 2 year mortality. Atrioventricular conduction defects were observed in 56 patients and were associated with a significantly increased mortality rate (43 p. 100 compared with 23 p. 100, p < 0.001). Atrial fibrillation (32 patients) was a better prognostic factor than the persistence of sinus rhythm; 2 year mortality 11,1 p. 100 compared to 37,6 p. 100 (p < 0.001). Increased left ventricular end diastolic pressures greater than 20 mmHg were related with a mortality of 51,5 p. 100. Also, the patients with a ejection fraction of 30 p. 100 and a 2 year mortality rate of 44 p. 100 compared to 17,5 p. 100 when the ejection fraction was greater than 30 p. 100 (p < 0,001). In conclusion : 1. Regional abnormalities of left ventricular contraction are not rare in primary cardiomyopathy. 2. The prognosis is directly related to the degree of cardiac failure and the extent of left ventricular dysfunction.


Asunto(s)
Cardiomiopatías/fisiopatología , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico
12.
Arch Mal Coeur Vaiss ; 76(9): 1072-6, 1983 Sep.
Artículo en Francés | MEDLINE | ID: mdl-6416210

RESUMEN

Between 1976 and 1981, 173 patients with severe symptomatic mitral incompetence were referred for preoperative assessment. The etiological diagnosis was based on echocardiography, catheterisation, angiography, and, in the 71 patients operated on, the surgical findings. Rheumatic valvular disease was demonstrated in 40 cases (23,1 p. 100), bacterial endocarditis in II cases (6,3 p. 100), myocardial disease in 30 cases (17,3 p. 100) including 19 cases of mitral incompetence during cardiomyopathy with dilatation, and II cases of mitral incompetence during hypertrophic obstructive cardiomyopathy: ischemic heart disease was the underlying cause in 27 patients (15,6 p. 100), congenital heart disease in 9 patients (5,3 p. 100); dystrophic valvular disease (mitral valve prolapse with or without chordal rupture) was detected in 56 cases (32,3 p. 100). These results show a continuing reduction in the incidence of rheumatic fever and an increase in the number of cases of dystrophic mitral valve disease in patients of 50 to 70 years of age, a condition often rapidly progressive with hemodynamic characteristics very similar to those of mitral incompetence observed in ischemic heart diseases.


Asunto(s)
Insuficiencia de la Válvula Mitral/etiología , Adulto , Anciano , Cardiomiopatías/complicaciones , Enfermedad Coronaria/complicaciones , Ecocardiografía , Endocarditis Bacteriana/complicaciones , Femenino , Hemodinámica , Humanos , Masculino , Persona de Mediana Edad , Insuficiencia de la Válvula Mitral/congénito , Insuficiencia de la Válvula Mitral/diagnóstico , Prolapso de la Válvula Mitral/complicaciones , Cardiopatía Reumática/complicaciones
13.
Arch Mal Coeur Vaiss ; 80(5): 610-7, 1987 May.
Artículo en Francés | MEDLINE | ID: mdl-3113379

RESUMEN

The immediate and long-term results of aortic valve replacement for pure or predominant aortic valve stenosis were evaluated in 186 patients operated upon since 1975 and followed for up to 10 years. This population fell into two groups depending on whether the pre-operative cardiac index was superior (group I, n = 111) or inferior (group II, n = 75) to 2.3 l/min/m2. There was no significant difference between the two groups as regards the immediate (i.e. within 30 days) post-operative mortality rate (6.6% vs 8.1% respectively). In contrast, the cardiac index proved to be a significant post-operative prognostic factor in aortic stenosis, since the probability of survival at 5 years was 96.4% in group I and only 71.7% in group II (p less than 0.001). This high rate of mortality in group II was exclusively due to myocardial dysfunction (sudden deaths included) in these patients with low cardiac index. When late mortality was analyzed according to age (over or below 60 years) and to pre-operative cardiothoracic ratio (over or below 50), these two criteria also proved to be significant prognostic factors. However, considering the poor prognosis of unoperated aortic stenosis, these long-term results in group II should encourage surgical treatment in many cases, even those with advanced cardiopathy.


Asunto(s)
Estenosis de la Válvula Aórtica/cirugía , Gasto Cardíaco , Prótesis Valvulares Cardíacas/mortalidad , Anciano , Estenosis de la Válvula Aórtica/fisiopatología , Femenino , Pruebas de Función Cardíaca , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Factores de Tiempo
14.
Arch Mal Coeur Vaiss ; 82(8): 1389-96, 1989.
Artículo en Francés | MEDLINE | ID: mdl-2508590

RESUMEN

We present 95 cases of aortic valve incompetence (AI) due to a dystrophic aneurysm of the ascending aorta; the aneurysm was idiopathic in 83 cases and associated with Marfan's syndrome in 12 cases. The diagnosis was confirmed by histological examination of the aorta and aortography. Functional signs were not always present, since 42 p. 100 of patients were in NYHA classes I and II and 58 p. 100 in classes III and IV. The prevalence of angina was 26 p. 100. The cardiothoracic ratio was increased up to 0.62 +/- 0.07, and projection to the right was noted in 63 p. 100 of the cases. Sokolow's index was 5 mv or more in 24 p. 100 of the patients. The aortic root, measured in 42 patients, was dilated up to 54 +/- 13 mm. The end-diastolic left ventricular diameter was increased to 70 +/- 10 mm. Haemodynamic studies yielded the following results: cardiac index 2.33 +/- 0.6 1/min/m2, end-diastolic left ventricular pressure 24.7 +/- 12 mmHg, mean pulmonary wedge pressure 12 +/- 6 mmHg, left ventricular end-diastolic volume 199 +/- 67 ml/m2, and angiographic ejection fraction 53 +/- 12 p. 100. The angiographic volume of aortic regurgitation, graded according to Sellers' classification, was 3/4 or 4/4 in 89 patients; the maximum diameter of the dilated ascending aorta was 73 +/- 18 mm. Evolutive data confirmed that aortic incompetence due to dystrophy is more severe than that due to other causes: 36 months after surgery, the overall mortality rate was 30%. Only two factors in our series seemed to be predictive of a poor prognosis: the fact that the patient belonged to NYHA class III or IV, and a mean pulmonary wedge pressure above 10 mmHg. This, however, must be taken with caution in view of the small population samples studied. The value of skin biopsy was confirmed. This examination, performed in 27 patients, was compared with the pathological examination of the aorta. Skin biopsy is specific and provides a major argument in favour of dystrophic AI in patients under 40 years of age.


Asunto(s)
Aneurisma de la Aorta/complicaciones , Insuficiencia de la Válvula Aórtica/etiología , Piel/patología , Adulto , Anciano , Aorta/anomalías , Aneurisma de la Aorta/fisiopatología , Aneurisma de la Aorta/cirugía , Insuficiencia de la Válvula Aórtica/fisiopatología , Insuficiencia de la Válvula Aórtica/cirugía , Aortografía , Biopsia , Femenino , Hemodinámica , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Factores de Tiempo
15.
Arch Mal Coeur Vaiss ; 82(9): 1519-25, 1989 Sep.
Artículo en Francés | MEDLINE | ID: mdl-2510671

RESUMEN

Between January 1972 and March 1983, 123 patients with isolated non dystrophic aortic insufficiency underwent aortic valve replacement. During a mean follow-up period of 4.3 years per patient, 25.6 p. 100 of the patients died, including a 4.1 p. 100 hospital death rate. The actuarial survival rate was 74 p. 100 at 5 years and 62 p. 100 at 10 years. The main causes of mortality were heart failure, dysrhythmias and sudden death. A study of prognostic factors based on the preoperative data showed that clinical, radiological, electrocardiographic and haemodynamic signs were informative. In agreement with other authors, we found that preoperative cardiac dilatation and left ventricular dysfunction were predictive of a poor prognosis.


Asunto(s)
Insuficiencia de la Válvula Aórtica/mortalidad , Adulto , Anciano , Anciano de 80 o más Años , Insuficiencia de la Válvula Aórtica/fisiopatología , Insuficiencia de la Válvula Aórtica/cirugía , Enfermedad Crónica , Ecocardiografía , Electrocardiografía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos
16.
Arch Mal Coeur Vaiss ; 71(7): 727-33, 1978 Jul.
Artículo en Francés | MEDLINE | ID: mdl-102272

RESUMEN

Left atrial and ventricular compliance has been studied in 25 cases of chronic mitral incompetence (CMI) and 9 cases of acute mitrale incompetence (AMI). Left atrial compliance was evaluated by the ratio between maximal variation in volume and corresponding maximal variation in pressure; it was found to be higher in cases of CMI than in cases of AMI. Left ventricular compliance was evaluated by various indices (Diamond, Mirsky, Gaasch, Laird), and was found to be increased equally in the chronic and acute types. It is possible that an explanation of this increase incompliance is to be found in the rearrangement of myocardial fibres which follows the dilatation. It constitutes a fundamental means of chronic adaptation, and shows that the diastolic elastic properties of the cavities of the atrium and ventricle are as important in the evaluation of mitral incompetence as the properties of systolic contraction.


Asunto(s)
Atrios Cardíacos/fisiopatología , Ventrículos Cardíacos/fisiopatología , Insuficiencia de la Válvula Mitral/fisiopatología , Enfermedad Aguda , Presión Sanguínea , Enfermedad Crónica , Adaptabilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Contracción Miocárdica , Volumen Sistólico
17.
Arch Mal Coeur Vaiss ; 70(12): 1293-301, 1977 Dec.
Artículo en Francés | MEDLINE | ID: mdl-415679

RESUMEN

A retrospective study of 100 case notes of patients who died from a recent myocardial infarction (less than one month before death) has established the causes of death: cardiac failure (52), rupture of the heart (40), major pulmonary emboli (3), primary irreversible ventricular fibrillation (2), unexplained death (3). Study of the extent of the necrosis by the technique of segmentation of the ventricular mass has allowed us to clarify the correlation between the "index of extent" ("i"), an the clinico-pathological findings. It has been noted in particular that those infarctions complicated by cardiogenic shock and/or by bilateral bundle branch block were those with the highest value of index of extent (i = 8.91, i = 9.40); also that cardiac failure and ventricular tachycardia were found in the extensive infarctions (i = 7,33, i = 9.52); also that rupture of the outer wall and pulmonary thromboses complicated infarctions of very small extent (i = 4,80, i = 5,67). It would not seem possible to reduce the hospital mortality of infarctions significantly, since it is essentially linked with circulatory failure caused by extensive necrosis, and with ruptures of the heart which are unpredictable and untreatable.


Asunto(s)
Muerte Súbita/etiología , Infarto del Miocardio/mortalidad , Arritmias Cardíacas/complicaciones , Electrocardiografía , Femenino , Insuficiencia Cardíaca/complicaciones , Rotura Cardíaca/complicaciones , Ventrículos Cardíacos , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/patología , Miocardio/patología , Necrosis , Edema Pulmonar/complicaciones , Embolia Pulmonar/complicaciones , Choque Cardiogénico/complicaciones , Tromboembolia/complicaciones
18.
Arch Mal Coeur Vaiss ; 75(4): 439-48, 1982 Apr.
Artículo en Francés | MEDLINE | ID: mdl-6808953

RESUMEN

A series of 54 patients with chronic aortic insufficiency with little (38) or no symptoms (16) were studied. All had severe regurgitation leading to discussion of aortic valve replacement. All patients (44 male and 10 female) underwent clinical, radiological, electrocardiographic, hemodynamic and angiographic investigation with assessment of left ventricular volume by monoplane 30 degrees cineangiography on entry to the study. They were then followed-up for an average of 36 months and the data assessed in a prospective study. At the end of the 36 months period, 4 patients had been lost to follow-up but were still alive, 31 patients were unchanged (Group A) and 19 patients had deteriorated (Group B). The parameters characterising Group B (P less than 0.001) were: corrected cardiac surface area of 1,72 +/- 0,13, a Sokolow index of 60,1 +/- 18,8 mm an ejection fraction of 56.2 +/- 14 % and a left ventricular end diastolic value of 225,3 ml/m2. Therefore, in chronic asymptomatic aortic incompetence, the parameters of cardiac dilatation, cardiac surface area greater than 1,70 and left ventricular end diastolic volume greater than 170 ml/m2, would appear to be good indications for aortic valve replacement. However, the values are nor formal criteria because a discrepancy between symptoms and the volumetric measurements may be observed in some cases, and also large variations in these measurements may be observed in patients in the same functional class.


Asunto(s)
Insuficiencia de la Válvula Aórtica/fisiopatología , Adulto , Insuficiencia de la Válvula Aórtica/mortalidad , Enfermedad Crónica , Femenino , Estudios de Seguimiento , Hemodinámica , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Factores de Tiempo
19.
Arch Mal Coeur Vaiss ; 79(1): 95-102, 1986 Jan.
Artículo en Francés | MEDLINE | ID: mdl-3085615

RESUMEN

Between January 1970 and December 1982, seventy-one patients in functional Stage IV of the NYHA classification underwent isolated aortic valve replacement for aortic incompetence (27 cases), aortic stenosis (18 cases) or mixed aortic valve disease (26 cases). Three haemodynamic criteria were chosen: left ventricular ejection fraction less than 40% (average 34 +/- 2%); arteriovenous difference greater than 6 volumes per 100 ml (average 6.7 +/- 0.2 vol.); left ventricular end diastolic pressure greater than 20 mmHg (average 26 +/- 1.3 mmHg). Analysis of the preoperative data defined the clinical profile of these patients: average cardiac index 2.2 +/- 0.07 l/min/m2; 75% had a cardiothoracic index greater than 0.50%; 61% had at least one conduction defect. The average Sokolow index was 50 +/- 2 mm. Twenty seven of the 71 patients died (36%); there were 7 early postoperative deaths (1st month) (10%), mainly due to ventricular arrhythmias (6 out of 7). There were 20 late deaths (31%) on average 52 +/- 8 months after surgery: 70% were of cardiac origin with a predominance of sudden deaths. There were no deaths in the group of patients operated after 1977, probably because of improved techniques of peroperative myocardial protection. The actuarial survival was 72% at 5 years and 63% at 10 years: long term survival was lower in aortic incompetence (25% at 10 years) compared with aortic stenosis (68%) and mixed aortic valve disease (78%). There was a significant relationship between long term survival and cardiothoracic ratio, ejection fraction, the duration of symptoms before surgery and the presence of atrioventricular or left bundle branch block.(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Insuficiencia de la Válvula Aórtica/cirugía , Estenosis de la Válvula Aórtica/cirugía , Válvula Aórtica/cirugía , Insuficiencia Cardíaca/terapia , Adolescente , Adulto , Anciano , Insuficiencia de la Válvula Aórtica/complicaciones , Estenosis de la Válvula Aórtica/complicaciones , Femenino , Insuficiencia Cardíaca/etiología , Insuficiencia Cardíaca/fisiopatología , Prótesis Valvulares Cardíacas/efectos adversos , Prótesis Valvulares Cardíacas/mortalidad , Hemodinámica , Humanos , Masculino , Persona de Mediana Edad , Contracción Miocárdica , Pronóstico , Estudios Retrospectivos
20.
Arch Mal Coeur Vaiss ; 68(9): 899-905, 1975 Sep.
Artículo en Francés | MEDLINE | ID: mdl-813590

RESUMEN

53 patients with mitral or aortic valve disease, observed consecutively, had before operation a marked tricuspid incompetence. 24 had, in the course of corrective mitral or mitral-aortic correction, a surgical attempt at treatment of tricuspid regurgitation; in theremaining 29, tricuspid incompetence was not corrected surgically. The course of the latter group was studied (average follow-up period after operation = 18 months): the operative mortality was 10.3%, and secondary one 20.7%. The functional result was considered good in 55% of the patients, bad (classified III and IV of the NYHA) in 14% of the patients. The postoperative clinical and haemodynamic assessment showed that, in the patients in stages III and IV with persistent ou recurring tricuspid incompetence, the tricuspid lea was, in all cases, secondary to an anomalous function of the left heart (bad function of the prosthesis, persistence of aortic lesions either misvalued or uncorrected). Tricuspid repair in a second stage is unjestified in such cases.


Asunto(s)
Enfermedades de las Válvulas Cardíacas/cirugía , Complicaciones Posoperatorias/cirugía , Insuficiencia de la Válvula Tricúspide/cirugía , Adulto , Anciano , Válvula Aórtica/cirugía , Prótesis Valvulares Cardíacas , Hemodinámica , Humanos , Persona de Mediana Edad , Válvula Mitral/cirugía , Infarto del Miocardio/etiología , Complicaciones Posoperatorias/mortalidad
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