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de Castellarnau C, Cullare C, Lopez S, Bonnin O, Montesinos A, Guix M, Rutllant MLL. Prostacyclin and Thromboxane Production by Autogenous Femoral Veins Grafted into the Arterial Circulation of the Dog. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1646576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryVascular prostacyclin (PGI2) production is different in the arteries and veins of the dog. Experiments were performed to determine whether chronic grafting of the femoral vein into the arterial circulation would alter the normal PGI2 and thromboxane (TxA2) synthesis of the “arterialized” veins. Spontaneous and arachidonic acid (AA) stimulated PGI2 and TxA2 production (measured by radioimmunoassay of 6-keto PGF1α and TxB2 respectively) were analysed in full thickness punch biopsies of the middle part of the grafts after 3 and 16 months and compared with unoperated veins and arteries. PGI2 production was significantly higher in arteries than in veins but no significant difference in TxB2 production was found. Middle “arterialized” venous graft produced significantly lower amounts of PGI2 and higher amounts of TxB2 than unoperated vessels. PGI2 production was more reduced in the distal than in the middle or the proximal parts of the venous grafts especially when stimulated with AA. These findings do not support the concept that the venous graft was biochemically adapted or “arterialized” in terms of PGI2 production when implanted for 3 months or longer. Rather the markedly decreased PGI2/TxB2 ratio in the middle of the graft may be a contributory cause of thrombogenicity and may be implicated in the pathogenesis of neointimal hyperplasia.
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Affiliation(s)
- C de Castellarnau
- The Biomedical Research Unit, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | - C Cullare
- The Biomedical Research Unit, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | - S Lopez
- The Biomedical Research Unit, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | - O Bonnin
- The Dept. of Experimental Surgery, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | - A Montesinos
- The Dept. of Experimental Surgery, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | - M Guix
- The Dept. of Histology, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| | - M LL Rutllant
- The Biomedical Research Unit, Hospital Santa Creu i Sant Pau, Barcelona, Spain
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Ibañez J, Riera M, Amezaga R, Herrero J, Colomar A, Campillo-Artero C, de Ibarra JIS, Bonnin O. Long-Term Mortality After Pneumonia in Cardiac Surgery Patients. J Intensive Care Med 2014; 31:34-40. [DOI: 10.1177/0885066614523918] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Accepted: 12/09/2013] [Indexed: 11/15/2022]
Abstract
Background: The role that intensive care unit (ICU)-acquired pneumonia plays in the long-term outcomes of cardiac surgery patients is not well known. This study examined the association of pneumonia with in-hospital mortality and long-term mortality after adult cardiac surgery. Methods: A total of 2750 patients admitted to our ICU after cardiac surgery from January 2003 to December 2009 are the basis for this observational study. Patients who developed ICU-acquired pneumonia were matched with patients without it in a 1:2 ratio. The matching criteria were age, urgent or scheduled surgery, surgical procedure, and the propensity score for pneumonia. Multiple regression analysis was used to find predictors of hospital mortality. The relationship between pneumonia and long-term survival was analyzed with Kaplan-Meier survival estimates and a risk-adjusted Cox proportional regression model for patients discharged alive from hospital. Results: Pneumonia was diagnosed in 32 (1.2%) patients and there were 19 cases per 1000 days of mechanical ventilation. Patients with pneumonia had a significantly higher hospital mortality rate (28% vs 6.2%, P = .003) and a higher mortality at the end of follow-up (53% vs 19%, P < .0001) than those without it. Regression analysis showed that pneumonia was a strong predictor of hospital mortality. Five-year survival was as follows: pneumonia, 62%; control, 81%; and cohort patients, 91%. The Cox model showed that, after adjusting for confounding factors, patients with pneumonia (hazard ratio = 3.96, 95% confidence interval [CI]: 1.41-11.14) had poorer long-term survival. Conclusion: Pneumonia remains a serious complication in patients operated for cardiac surgery and is associated with increased hospital mortality and reduced long-term survival.
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Affiliation(s)
- J. Ibañez
- Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
| | - M. Riera
- Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
| | - R. Amezaga
- Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
| | - J. Herrero
- Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
| | - A. Colomar
- Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
| | - C. Campillo-Artero
- Intensive Care Unit, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
| | - J. I. Saez de Ibarra
- Cardiac Surgery Department, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
| | - O. Bonnin
- Cardiac Surgery Department, Son Espases University Hospital, Palma de Mallorca, Balearic Islands, Spain
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Prieto RM, Gomila I, Söhnel O, Costa-Bauza A, Bonnin O, Grases F. Study on the structure and composition of aortic valve calcific deposits. etiological aspects. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/jbpc.2011.21003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
OBJECTIVE The use of risk prediction models in cardiac surgery makes it possible to compare and evaluate health care quality between different institutions in countries. This study aimed to assess the performance of the European System for Cardiac Operative Risk Evaluation (EuroSCORE) model in estimating the risk of mortality of cardiac surgery patients of our hospital. PATIENTS AND METHODS The additive and logistic EuroSCORE models were applied to all patients who underwent cardiac surgery with extracorporeal circulation from the time the cardiac surgery unit was opened in our center in November 2002 until February 2006. All data were obtained prospectively when the patients were admitted to the Intensive Care Unit. Mortality observed was compared with that estimated in the following subgroups: global cardiac surgery, isolated coronary surgery, isolated valvular surgery, combined valvular and coronary surgery and thoracic aorta surgery. Model discrimination was tested by determining the area under the receiver operating characteristic (ROC) curve. RESULTS We studied 1,053 patients who had several differences with the EuroScore model population. Overall observed mortality was 2.2% (95% CI 1.2 - 3.1). The EuroSCORE models overestimated mortality (additive predicted 5%, logistic predicted 4.6%). Mortality of coronary bypass graft surgery was 1.2% and both EuroSCORE models overestimated it. Discriminative power of both models was good with an Area under ROC curve for both models of 0.78 and 0.79. CONCLUSIONS The use of both EuroSCORE models overestimated overall observed mortality and that of the different surgical subgroups of cardiac surgery performed in our institution.
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Affiliation(s)
- M Riera
- Servicio de Medicina Intensiva, Hospital Universitario Son Dureta, Palma de Mallorca, Islas Baleares
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Awitor KO, Bonnin O, Bernard L, Coupat B, Fournier J. Study of Mercurous Chloride Crystal Growth. Zeitschrift für experimentelle und technische Kristallographie 2001. [DOI: 10.1002/1521-4079(200112)36:12<1345::aid-crat1345>3.0.co;2-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Alejandro del Río Vizoso M, Riera Jaume M, Salvá F, Bonnin O. [Endocarditis by Bartonella in a patient with human immunodeficiency virus infection]. Med Clin (Barc) 2001; 116:238. [PMID: 11333726 DOI: 10.1016/s0025-7753(01)71781-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Delgado C, Bonnin O, Garriga JM, Barril R, Barturen F. Intermittent electromechanical dissociation as an unusual sign of prosthetic valve thrombosis in a patient with prosthetic fibrous ingrowth. J Am Soc Echocardiogr 2000; 13:685-9. [PMID: 10887355 DOI: 10.1067/mje.2000.104675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We describe the echocardiographic features of an unusual hemodynamic phenomenon of intermittent electromechanical dissociation during regular sinus tachycardia in a patient with prosthetic mitral valve thrombosis. Thrombolysis with a solution of recombinant tissue-type plasminogen activator resulted in the disappearance of electromechanical dissociation and was effective in stabilizing the patient's condition. The later discovery of panus covering the valve ring after the lysis of clots confirmed surgery as the definitive treatment.
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Affiliation(s)
- C Delgado
- Department of Internal Medicine, Service of Cardiology, Palma de Mallorca, Spain
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Delgado C, Bonnin O, Fernández P, Barturen F. [Not Available]. Rev Esp Cardiol 2000; 53:997. [PMID: 10956596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- C Delgado
- Servicio de Cardiología. Departamento de Medicina Interna. Policlínica Miramar. Palma de Mallorca
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Bonnet C, Perret E, Bonnin O, Picard A, Caput D, Lenaers G. Identification of rpaP1-5 and rpaP2-6 genes encoding two additional variants of the 60S acidic ribosomal proteins of Schizosaccharomyces pombe. Genome 2000; 43:205-7. [PMID: 10701132 DOI: 10.1139/g99-102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/22/2022]
Abstract
In the fission yeast, four genes (rpaP1-1, rpaP1-3, rpaP2-2, and rpaP2-4) encoding two variants of the RpaP1 and RpaP2 ribosomal proteins (rp) have been characterized. We have identified cDNA for additional variants called RpaP1.5 and RpaP2.6. Sequence comparison suggests that RpaP1.5 diverged before RpaP1.1 and RpaP1.3 and that RpaP2.6 is closer to RpaP2.2 than to RpaP2.4. The corresponding genes, rpaP1-5 and rpaP2-6, are transcribed coordinately with other rp genes.
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Affiliation(s)
- C Bonnet
- Laboratoire Arago, UMR 7628 du CNRS, Université Pierre et Marie Curie, Banyuls sur Mer, France
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Delgado C, Bonnin O, Barturen F. An unusual tethering of the bridging leaflets in atrioventricular septal defect producing a communication from left atrium to right ventricle. Cardiol Young 1999; 9:84-7. [PMID: 10323549 DOI: 10.1017/s1047951100007484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We describe a 39-year-old woman who was diagnosed as having an unusual atrioventricular septal defect with a communication from left atrium to right ventricle. A common atrioventricular junction, with partially separated right and left atrioventricular orifices, was found at transoesophageal ultrasonic examination. Both bridging leaflets were attached to the underside of the atrial septum, which was grossly malaligned relative to the ventricular septum. The shunt was exclusively from left atrium to right ventricle because of the overriding of the left atrioventricular valve, with the left component of the inferior bridging leaflet firmly fused to the ventricular septal crest.
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Affiliation(s)
- C Delgado
- Internal Medicine, Service of Cardiology, Policlínica Miramar, Palma de Mallorca (Baleares), Spain
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Miloux B, Laurent P, Bonnin O, Lupker J, Caput D, Vita N, Ferrara P. Cloning of the human IL-13R alpha1 chain and reconstitution with the IL4R alpha of a functional IL-4/IL-13 receptor complex. FEBS Lett 1997; 401:163-6. [PMID: 9013879 DOI: 10.1016/s0014-5793(96)01462-7] [Citation(s) in RCA: 169] [Impact Index Per Article: 6.3] [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: 02/03/2023]
Abstract
The human homologue of the recently cloned murine IL-13 binding protein (IL-13R alpha1) was cloned from a cDNA library derived from the carcinoma cell line CAKI-1. The cloned cDNA encodes a 427 amino acid protein with two consensus patterns characteristic of the hematopoietic cytokine receptor family and a short cytoplasmic tail. The human protein is 74% identical to the murine IL-13R alpha1, and 27% identical to the human IL-13R alpha2. CHO cells expressing recombinant hIL-13R alpha1 specifically bind IL-13 (Kd approximately 4 nM) but not IL-4. Co-expression of the cloned cDNA with that of IL-4R alpha resulted in a receptor complex that displayed high affinity for IL-13 (Kd approximately 30 pM), and that allowed cross-competition of IL-13 and IL-4. Electrophoretic mobility shift assay showed that IL-13 and IL-4 were able to activate Stat6 in cells expressing both IL-4R alpha and IL-13R alpha1, while no activation was observed in cells expressing either one or the other alone.
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Affiliation(s)
- B Miloux
- Sanofi Recherche, Labège Innopole, France
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de Castellarnau C, Cullare C, Lopez S, Bonnin O, Montesinos A, Guix M, Rutllant ML. Prostacyclin and thromboxane production by autogenous femoral veins grafted into the arterial circulation of the dog. Thromb Haemost 1989; 61:279-85. [PMID: 2665174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Vascular prostacyclin (PGI2) production is different in the arteries and veins of the dog. Experiments were performed to determine whether chronic grafting of the femoral vein into the arterial circulation would alter the normal PGI2 and thromboxane (TxA2) synthesis of the "arterialized" veins. Spontaneous and arachidonic acid (AA) stimulated PGI2 and TxA2 production (measured by radioimmunoassay of 6-keto PGF1 alpha and TxB2 respectively) were analysed in full thickness punch biopsies of the middle part of the grafts after 3 and 16 months and compared with unoperated veins and arteries. PGI2 production was significantly higher in arteries than in veins but no significant difference in TxB2 production was found. Middle "arterialized" venous graft produced significantly lower amounts of PGI2 and higher amounts of TxB2 than unoperated vessels. PGI2 production was more reduced in the distal than in the middle or the proximal parts of the venous grafts especially when stimulated with AA. These findings do not support the concept that the venous graft was biochemically adapted or "arterialized" in terms of PGI2 production when implanted for 3 months or longer. Rather, the markedly decreased PGI2/TxB2 ratio in the middle of the graft may be a contributory cause of thrombogenicity and may be implicated in the pathogenesis of neointimal hyperplasia.
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Affiliation(s)
- C de Castellarnau
- Biomedical Research Unit, Hospital Santa Creu i Sant Pau, Barcelona, Spain
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Unzueta Merino MC, Bonnin O, Cabrera Ruiz JC, Villar Landeira JM. [Naloxone and cardiogenic shock]. Rev Esp Anestesiol Reanim 1987; 34:446-9. [PMID: 3423375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Cladellas M, Abadal ML, Ballester M, Obrador D, Crexells C, Matias-Guiu X, Bordes R, Bonnin O. Endomyocardial diagnosis of cardiac lipomatosis. Cathet Cardiovasc Diagn 1987; 13:269-70. [PMID: 3621340 DOI: 10.1002/ccd.1810130409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A patient with severe isolated right-sided cardiac failure of unknown origin is presented in whom three right ventricular endomyocardial biopsies obtained in different bioptome positions disclosed a yellowish material which was confirmed at histological examination as fat. At operation, a complete replacement of atrial and ventricular myocardium by fat was noted. this previously unreported use of endomyocardial biopsy is emphasized, especially when the differential diagnosis of isolated right-sided heart failure is considered.
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Abstract
Acute postperfusion right ventricular failure following mitral and aortic valve replacement in a patient with severe double-valve incompetence secondary to endocarditis is presented. The situation was reversed by creating an atrial septal defect that decompressed the right ventricle and increased left ventricular filling pressure.
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