151
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Maclouf J, Bernard P, Rigaud M, Rocquet G, Breton JC. Alteration of arachidonic acid metabolism with spleen microsomes of irradiated rats. Biochem Biophys Res Commun 1977; 79:585-91. [PMID: 588288 DOI: 10.1016/0006-291x(77)90197-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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152
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Huret JF, Jandin M, Rigaud M, Baglin A, Gandjbakhch I, Bourdarias JP, Mathivat A. [Endocarditis due to staphylococcus aureus during cardiomyopathy]. ARCHIVES DES MALADIES DU COEUR ET DES VAISSEAUX 1977; 70:1227-32. [PMID: 414681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In a patient suffering from obstructive cardiomyopathy (IHSS), the onset of septicaemia due to staphylococus aureus was accompanied: 1. by the appearance of massive mitral incompetence and of cardiac failure; 2. by a marked reduction in the left intra-ventricular pressure gradient; 3. by acute reversible renal failure (interstitial nephritis); 4. by a glomerulonephritis with immune complexes deposits. After the septicaemia had been treated, replacement of the mitral valve by a disc prosthesis of Lillehei was carried out. Twenty months after the operation, the patient was completely asymptomatic, and catheterisation showed that the left intra-venticular pressure gradient had disappeared, as had the haemodynamic signs of cardiac failure.
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153
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Bardet J, Rigaud M, Kahn JC, Huret JF, Gandjbakhch I, Bourdarias JP. Treatment of post-myocardial infarction angina by intra-aortic ballon pumping and emergency revascularization. J Thorac Cardiovasc Surg 1977; 74:299-306. [PMID: 301968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Twenty-one patients with postinfarction angina (2 to 15 days after acute myocardial infarction) unresponsive to medical therapy were treated by intra-aortic balloon pumping (IABP). Anginal pain and electrocardiographic (ECG) ST-segment changes were prevented in all patients. Coronary angiograms were obtained during IABP without complication and confirmed severe coronary artery disease. Of the four nonoperated patients, three had reinfarction and two died of cardiogenic shock. Seventeen patients underwent aorta-coronary bypass grafting, associated with aneurysmectomy in two patients and closure of a ventricular septal defect in one. Sixteen patients survived the operation. All survivors are in clinically improved condition and 14 are pain free from 9 to 28 months postoperatively, but three have mild heart failure.
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154
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Rigaud M, Boschat J, Rocha P, Ferreira A, Bardet J, Bourdarias JP. Comparative haemodynamic effects of dobutamine and isoproterenol in man. Intensive Care Med 1977; 3:57-62. [PMID: 893774 DOI: 10.1007/bf01683062] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Dobutamine was infused at a rate of 8 mcg/kg/min in 17 patients with or without congestive heart failure. Cardiac output increased from an average 2.92 to 4.45 1/min/m2(p less than 0.001) with no change in mean aortic pressure (93.4 to 97.8 mmHg) and only a slight increase in heart rate (78 to 87 beats/min). Left ventricular end-diastolic pressure decreased from an average 19 to 13.7 mmHg (p less than 0.01). Peak left ventricular dp/dt was doubled (1147 to 2370 mmHg/sec, p less than 0.001) and Vmax increased from 1.08 to 2.18 circ/sec (p less than 0.001). In 10 patients given equi-inotropic doses (100 per cent increase in peak dp/dt) Isoproterenol produced a greater increase in cardiac output (71 percent) than Dobutamine /51 percent). Isoproterenol caused mean aortic pressure to fall significantly (8 percent) while no change was noted with Dobutamine. Accordingly, peripheral vascular resistances were reduced to a greater extent with Isoproterenol than with Dobutamine (p less than 0.05). Mean pulmonary arterial pressure decreased significantly (25 +/- 5.9 to 22 +/- 5.7 mmHg, p less than 0.05) with Isoproterenol infusion and remained unchanged with Dobutamine infusion. Dobutamine increased both stroke work (57 percent) and minute work (83 percent). With Isoproterenol however, only minute work was significantly increased (90 percent). Dobutamine therefore is a potent inotropic drug, with mild chronotropic and peripheral vascular effect and may be valuable in the management of severe heart failure not associated with hypotension.
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155
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Bardet J, Rigaud M, Kahn J, Huret J, Gandjbakhch I, Bourdarias J. Treatment of post—myocardial infarction angina by intra-aortic balloon pumping and emergency revascularization. J Thorac Cardiovasc Surg 1977. [DOI: 10.1016/s0022-5223(19)41391-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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156
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Bardet J, Bourdarias JP, Kahn JC, Rigaud M, Rocha P, Huret JF, Gaux JC, Farhat MB, Gandjbakhch I, Mathivat A. [Circulatory assistance by intra-aortic counter pressure. Long term results in a series of 108 cases]. COEUR ET MEDECINE INTERNE 1977; 16:391-403. [PMID: 923194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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157
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Kahn JC, Rigaud M, Gandjbakhch I, Bardet J, Bensaid J, Bourdarias JP. Posterior rupture of the interventricular septum after acute myocardial infarction: successful early surgical repair. Ann Thorac Surg 1977; 23:483-6. [PMID: 856084 DOI: 10.1016/s0003-4975(10)64175-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A patient with a large posterior ventricular septal defect complicating an acute inferior myocardial infarction is reported. Because of medically intractable biventricular failure, temporary circulatory assistance was initiated using intraaortic balloon pumping. Emergency coronary angiography, ventriculography, and subsequent operation were carried out. Operative repair involved closure of the septal defect with the use of a Dacron patch, infarctectomy, and aortocoronary bypass grafting and resulted in long-term survival of the patient.
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158
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Gaux JC, Blery M, Bardet J, Frija G, Rigaud M, Bourdarias JP, Bismuth V. [High risk coronarography using circulatory compensation : angiographic results in 68 cases (author's transl)]. Ann Cardiol Angeiol (Paris) 1977; 26:235-43. [PMID: 900849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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159
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Bardet J, Rigaud M, Bourdarias JP. [Circulatory compensation by means of intra-aortic counterpulsation : difficulties, complications (author's transl)]. Ann Cardiol Angeiol (Paris) 1977; 26:219-24. [PMID: 900845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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160
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Bardet J, Rocha P, Rigaud M, Bourdarias JP, Mathivat A. Left ventricular compliance in acute myocardial infarction in man. Cardiovasc Res 1977; 11:122-31. [PMID: 870196 DOI: 10.1093/cvr/11.2.122] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Left ventricular end-diastolic pressure (P) and volume (V) were measured in 12 patients with acute myocardial infarction. It was assumed that the diastolic P-V relationship was exponential and corresponded to the formula P=be KV. In 7 patients submitted to volume loading, several data points of this relationship were obtained and at zero volume, the mean intercept with the ordinates was 0.037+/-0.015 kPa (SEM) (0.28+/-0.12 mmHg). In the other 5 patients, the P-V curve was plotted through this intercept and the pressure and volume co-ordinates obtained by control. The K coefficient (passive elastic modulus) was greater, and the normalised left ventricular compliance index (dV/VdP) was smaller in the infarct group than in the control group. This suggests decreased left ventricular compliance during the acute phase of myocardial infarction. By comparing left ventricular function curves plotted using either end-diastolic pressure or end-diastolic volume as the stretch index it is possible to evaluate the relative participation of decreased compliance and depressed contractility in global left ventricular function.
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161
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Bardet J, Gaux JC, Rigaud M, Legendre M, Maisonneuve D, Mathivat A. [2 recent cases of myxoma of the left atrium]. ANNALES DE MEDECINE INTERNE 1977; 128:189-96. [PMID: 869387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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162
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Madani C, Chambaz EM, Rigaud M, Durand J, Chebroux P. New method for the preparation of highly stable polysiloxane-coated glass open-tubular capillary columns and application to the analysis of hormonal steroids. J Chromatogr A 1976; 126:161-9. [PMID: 977689 DOI: 10.1016/s0021-9673(01)84070-x] [Citation(s) in RCA: 72] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new approach to the preparation of methylsiloxane-coated glass open-tubular capillary columns is described. A siloxane polymeric mixture is first prepared by hydrolysis of dimethyldichlorosilane. The polymer is then coated on to the previously etched glass wall by a base-catalyzed reaction to yield a non-polar system of high stability and showing satisfactory chromatographic properties. This type of column has been used for the high-resolution separations of complex hormonal steroid mixtures. The flexibility of this method should permit the preparation of capillary systems with a wide range of polarity.
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163
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Rigaud M, Chebroux P, Durand J, Maclouf J, Madani C. Une nouvelle technique de fabrication de colonnes capillaires de verre, utilisant des chlorosilanes polymerises. Application a l'analyse des steroides et des prostaglandines. Tetrahedron Lett 1976. [DOI: 10.1016/s0040-4039(00)92540-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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164
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Maclouf J, Rigaud M, Durand J, Chebroux P. Glass capillary columns applied to prostaglandins measurement: a useful tool for gas-chromatography mass spectrometry analysis. PROSTAGLANDINS 1976; 11:999-1017. [PMID: 935526 DOI: 10.1016/0090-6980(76)90008-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The difficulties to analyse prostaglandins (PG) by gas-liquid chromatography are mainly due to the lack of sensitivity of the gas-chromatograph itself (higher than 200 ng) and to the poor resolution of the packed columns. Therefore the use of glass capillary columns which has been applied with success for other biological compounds was tempting. We describe a comparison of the preparation of the columns and their use for PG analysis of standards and of human semen. A complete resolution of PG-1 from PG-2 series was achieved. The sensitivity was multiplied 100 fold with a flame ionisation detector when compared to packed columns and was equal to the one obtained with electron capture detectors without the inconveniences of this technique. The successful coupling of glass capillary columns to a mass spectrometer leads to promising results and allows profile studies of primary PG and their metabolites as seen with human semen.
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165
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Mathivat A, Rocha P, Rigaud M, Bardet J. [Obstructive cardiomyopathy and mitral insufficiency. Therapeutic indications and pathogenesis]. ANNALES DE MEDECINE INTERNE 1975; 126:369-75. [PMID: 1241652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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166
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Bardet J, Rigaud M, Rocha P, Bourdarias JP, Mathivat A. [Effects of selective beta adrenergic block on myocardial contractility. Relative role of negative inotropic and chronotropic effects]. ARCHIVES DES MALADIES DU COEUR ET DES VAISSEAUX 1974; 67:1169-79. [PMID: 4218730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Left ventricular function was studied in 15 patients both before and after intravenous administration of Practolol (an agent blocking selectively the heart beta-adrenergic receptors (beta 1)), while the heart rate was constant by right atrial pacing. The negative inotropic effect linked to the negative chronotropic effect of the beta-adrenergic blockage, represented approximately one quarter of the overall depression of the contractility. Right atrial pacing determined a decrease of the left ventricular end-diastolic pressure and an increase of the pacing rate by 20% above the spontaneous heart rate, after administration of 30 mg of Practolol, brought the contractility back to its control level.
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167
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Darcet P, Blanchet F, Menier R, Rigaud M, Florentin E. [Pulmonary function tests. Place of carbon monoxide transfer measurement]. LA NOUVELLE PRESSE MEDICALE 1973; 2:2885-7. [PMID: 4773667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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168
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Darcet P, Blanchet F, Menier R, Rigaud M, Florentin E. [Carbon monoxide transfer. Limits of validity and interpretation of measurements under stable conditions]. LA NOUVELLE PRESSE MEDICALE 1973; 2:2871-6. [PMID: 4773665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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169
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Renaud M, Rigaud M. Étude spectrophotométrique des produits formés au cours de l'oxydation superficielle du titane et de l'alliage TA6V. ACTA ACUST UNITED AC 1973. [DOI: 10.1016/0022-5088(73)90174-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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170
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