12 results on '"Conraads V"'
Search Results
2. Treating humoral rejection after cardiac transplantation.
- Author
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Verheyen J, Vermeulen T, Janssen Van Doorn K, Vrints C, and Conraads V
- Subjects
- Combined Modality Therapy, Female, Graft Rejection diagnosis, Graft Rejection immunology, Graft Rejection physiopathology, Humans, Immunity, Humoral, Immunoglobulins therapeutic use, Middle Aged, Plasmapheresis, Graft Rejection therapy, Heart Transplantation
- Abstract
Whereas effective strategies are available to treat acute cellular cardiac rejection, humoral rejection, also called vascular or antibody-mediated rejection, is more difficult to manage. Antibody-mediated (non-cellular) rejections (AMR) are rare and few successfully treated cases have been described in the literature. We report on a female patient, diagnosed with humoral rejection, leading to severe ventricular dysfunction and haemodynamic compromise, two months after transplantation. The patient received a combination therapy, consisting of plasmapheresis and immunoglobulins, which resulted in complete resolution of immunohistochemical signs of AMR. In this report, we will overview AMR and discuss several treatment modalities.
- Published
- 2011
- Full Text
- View/download PDF
3. Severe stomatitis complicating immune-suppressive switch after cardiac transplantation.
- Author
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Vermeulen T, Rodrigus IE, Vrints CJ, and Conraads V
- Subjects
- Aged, Anti-Inflammatory Agents, Non-Steroidal therapeutic use, Azathioprine therapeutic use, Cyclosporine therapeutic use, Drug Therapy, Combination, Everolimus, Female, Humans, Immunosuppressive Agents administration & dosage, Mycophenolic Acid analogs & derivatives, Mycophenolic Acid therapeutic use, Sirolimus administration & dosage, Sirolimus adverse effects, Tacrolimus therapeutic use, Thalidomide therapeutic use, Fissure in Ano chemically induced, Heart Transplantation, Immunosuppressive Agents adverse effects, Oral Ulcer chemically induced, Sirolimus analogs & derivatives, Stomatitis chemically induced
- Abstract
Everolimus is a recently developed immunosuppressive drug for patients following solid organ transplantation. Its mechanism of action, independent of calcineurin, is different from that of ciclosporin and tacrolimus and because of its lack of nephrotoxicity, it is a good alternative for calcineurin inhibitors in patients with renal dysfunction. In this paper we describe the case report of a 66-year-old caucasian female who underwent heart transplantation in December 2006. After induction with rabbit anti-thymocytic globulin, her immunosuppressive therapy comprised the combination of tacrolimus, mycophenolate mofetil (MMF) and steroids. Because of renal dysfunction, tacrolimus was changed for everolimus after 6 months. Unfortunately our patient developed severe stomatitis with aphthous ulcerations, shortly after the switch. Despite oral therapy (local anaesthetics), severe pain and malnourishment prompted interruption of everolimus and MMF and therapy was changed to ciclosporin and azathioprine. In addition, thalidomide was added. During the following weeks, there was progressive healing of the ulcerations. MMF was re-introduced and thalidomide was stopped after 6 weeks, without recurrent lesions after 4 months of follow-up.
- Published
- 2010
- Full Text
- View/download PDF
4. Successful ablation of atrioventricular accessory pathway after cardiac transplantation.
- Author
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Conraads V, Vorlat A, Miljoen H, De Paep R, Rodrigus I, and Vrints C
- Subjects
- Electrocardiography, Female, Humans, Middle Aged, Postoperative Complications surgery, Wolff-Parkinson-White Syndrome diagnosis, Cardiomyopathies surgery, Catheter Ablation, Heart Transplantation, Wolff-Parkinson-White Syndrome surgery
- Abstract
Liberalization of stringent guidelines regarding donor selection is acceptable in the case of critical recipient condition. Few cardiac allografts with preexisting accessory atrioventricular pathways have been implanted. We describe the successful radiofrequency modification of the atrioventricular node and ablation of an accessory pathway after cardiac transplantation. Although the previously healthy donor had no history of arrhythmia, the recipient's postoperative course was characterized by multiple bouts of reentry tachycardia. The highly successful catheter-based ablation techniques available to cure this condition favor the use of donor hearts with a preexisting accessory pathway.
- Published
- 2005
- Full Text
- View/download PDF
5. Heart transplantation: how to select patients? What are the alternatives?
- Author
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Conraads V
- Subjects
- Chronic Disease, Humans, Severity of Illness Index, Heart Failure surgery, Heart Transplantation standards, Patient Selection
- Abstract
The gap between the number of potential recipients of a cardiac graft and the availability of donor hearts is still growing. A proper selection of heart transplant candidates is mandatory to ensure that patients in critical need, who are likely to benefit from this procedure, are identified. The work-up of a patient with terminal chronic heart failure includes a comprehensive cardiac and systemic evaluation. Critical in the decision is the exclusion of irreversible pulmonary hypertension. Furthermore, underlying diseases that could compromise short- and long-term prognosis after transplantation should be carefully assessed. The mortality on the waiting list and the growing pool of patients with chronic heart failure that is excluded from transplantation has stimulated the search for alternative treatment modalities. Besides a pharmacologic approach, the last few years have witnessed a tremendous evolution in so-called mechanical devices, designed to improve both morbidity and mortality of these patients. Although several of these devices have only just entered the clinical phase, internal cardioverter defibrillators, left ventricular assist devices and biventricular pacemakers can no longer be viewed as experimental tools.
- Published
- 2004
- Full Text
- View/download PDF
6. Beneficial effects of simvastatin and pravastatin on cardiac allograft rejection and survival.
- Author
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Conraads V
- Subjects
- Coronary Disease therapy, Humans, Graft Rejection drug therapy, Graft Survival drug effects, Heart Transplantation immunology, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Pravastatin therapeutic use, Simvastatin therapeutic use
- Published
- 2003
- Full Text
- View/download PDF
7. Primary cardiac allograft failure after donor carbon monoxide poisoning treated with biventricular assist device.
- Author
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Rodrigus IE, Conraads V, Amsel BJ, and Moulijn AC
- Subjects
- Adult, Bioprosthesis, Echocardiography, Transesophageal, Follow-Up Studies, Heart Failure surgery, Heart Valve Prosthesis Implantation, Humans, Male, Middle Aged, Mitral Valve Insufficiency diagnostic imaging, Mitral Valve Insufficiency surgery, Postoperative Complications surgery, Reoperation, Carbon Monoxide Poisoning pathology, Heart Failure diagnostic imaging, Heart Transplantation pathology, Heart-Assist Devices, Postoperative Complications diagnostic imaging, Tissue Donors
- Abstract
Because of the current donor shortage, organ selection criteria are being progressively liberalized. We present a case of carbon monoxide poisoning in a multiorgan donor that led to primary cardiac allograft failure. A biventricular assist device was used as a bridge to recovery.
- Published
- 2001
- Full Text
- View/download PDF
8. Isolated non-compaction of the left ventricle: a rare indication for transplantation.
- Author
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Conraads V, Paelinck B, Vorlat A, Goethals M, Jacobs W, and Vrints C
- Subjects
- Adult, Atrial Fibrillation diagnosis, Atrial Fibrillation pathology, Cardiomyopathies diagnosis, Cardiomyopathies pathology, Diagnosis, Differential, Diagnostic Imaging, Female, Follow-Up Studies, Heart Ventricles pathology, Humans, Intracranial Embolism diagnosis, Intracranial Embolism pathology, Ventricular Dysfunction, Left diagnosis, Ventricular Dysfunction, Left pathology, Atrial Fibrillation surgery, Cardiomyopathies surgery, Heart Transplantation, Intracranial Embolism surgery, Ventricular Dysfunction, Left surgery
- Abstract
This report describes the diagnostic difficulty encountered in a young female patient presenting with neurologic symptoms, atrial fibrillation and severe left ventricular systolic dysfunction, eventually leading to cardiac transplantation. The scrutiny used in the evaluation of the particular aspect of the left ventricle, and the integration of the information obtained from echocardiography, angiography and magnetic resonance imaging, led to the diagnosis of a rare and mostly unknown cause of cardiac failure. The correct identification of this entity is mandatory because enhanced risk of thromboembolism and malignant arrhythmia should be anticipated. A review of the literature revealed only 6 patients in whom isolated non-compaction of the left ventricle was treated by heart transplantation.
- Published
- 2001
- Full Text
- View/download PDF
9. Screening for solid organ malignancies prior to heart transplantation.
- Author
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Conraads VM, Denollet J, Vorlat A, Moulijn AC, and Vrints CJ
- Subjects
- Adult, Aged, Carcinoma epidemiology, Carcinoma etiology, Female, Humans, Incidence, Lymphoma, Non-Hodgkin epidemiology, Lymphoma, Non-Hodgkin etiology, Male, Middle Aged, Neoplasms epidemiology, Neoplasms etiology, Netherlands, Postoperative Complications, Skin Neoplasms epidemiology, Skin Neoplasms etiology, Heart Transplantation, Mass Screening, Neoplasms diagnosis
- Abstract
Background: Prognosis of solid organ cancer in immunosuppressed hosts is generally dismal. Therefore, every effort to identify patients with asymptomatic carcinomas before transplantation should be encouraged., Methods: Sixty-seven patients referred for heart transplantation were examined adhering to the scheme proposed at the 24th Bethesda Conference. To increase the sensitivity of this work-up, the following items were added: tumor marker assays (prostate-specific antigen in males, carcino embryogenic antigen), abdominal ultrasound, CT scan of the abdomen and the thorax, mammography/echography of the breasts, PAP smear, colonoscopy if carcino embryogenic antigen abnormal or occult blood in stool, prostate echography if prostate-specific antigen abnormal or prostate hypertrophy., Results: Carcinoma was detected in 10 of the 67 patients; for 8 patients of this cancer group, transplantation was denied. Importantly, 9 of the 10 malignancies were detected by means of the diagnostic items that were added to the standard screening protocol. There were no significant differences between the cancer and the non-cancer group regarding mean age, sex, etiology of heart failure, and smoking history. Stratifying patients in younger (i.e., < or =54 years) and older (i.e., > or =55 years) age groups showed a significantly greater proportion of older patients in the cancer group (8/10=80%) compared to the non-cancer group (25/57=44%), P=0.04. After a mean follow-up of 34 months, 5 of the 36 transplanted patients developed a malignancy (4 skin carcinomas, 1 non-Hodgkin lymphoma). There have been no malignancy-related deaths until now., Conclusion: The importance of a thorough screening program in the triage of candidates with preexisting malignancies, especially in an older patient population, is illustrated in this report.
- Published
- 2001
- Full Text
- View/download PDF
10. Images in clinical medicine. Atrial parasystole after heart transplantation.
- Author
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Conraads V and Goethals M
- Subjects
- Adult, Atrial Premature Complexes etiology, Humans, Male, Atrial Premature Complexes diagnosis, Electrocardiography, Heart Transplantation adverse effects
- Published
- 2001
- Full Text
- View/download PDF
11. Diagnosis of cytomegalovirus retinitis after heart transplantation.
- Author
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Conraads V, Ieven M, Smets RM, Vorlat A, Janssen H, Moulijn A, and Vrints C
- Subjects
- Antibodies, Viral blood, Antiviral Agents therapeutic use, Cytomegalovirus isolation & purification, Cytomegalovirus Retinitis drug therapy, Drug Therapy, Combination, Ganciclovir therapeutic use, Humans, Immunosuppressive Agents therapeutic use, Male, Middle Aged, Cytomegalovirus Retinitis diagnosis, Heart Transplantation immunology, Postoperative Complications
- Published
- 2000
- Full Text
- View/download PDF
12. Cardiac graft vasculopathy: aetiologic factors and therapeutic approaches.
- Author
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Conraads V, Lahaye I, Rademakers F, Heuten H, Rodrigus I, Vrints C, and Moulijn A
- Subjects
- Graft Occlusion, Vascular diagnosis, Graft Occlusion, Vascular prevention & control, Graft Rejection, Heart Transplantation immunology, Humans, Risk Factors, Graft Occlusion, Vascular etiology, Graft Occlusion, Vascular therapy, Heart Transplantation adverse effects
- Abstract
Heart transplantation has become an accepted and successful treatment for end-stage heart disease with survival rates of 80-90% after one year and 70% after 5 years. During the early posttransplant period (6-12 months), patients are subject to two major complications: rejection and infection. Fortunately, a certain degree of graft tolerance develops, allowing the immunosuppressive therapy to be progressively tapered off with a concomitant decrease in infectious problems. Long-term survival, however, is largely dependent on the development of an accelerated atherosclerosis in the graft, which is believed to represent some kind of chronic rejection. This transplant vasculopathy is documented by means of coronary angiography with an incidence of approximately 5 to 10% per year. It is not surprising therefore that major interest has risen concerning risk factors promoting this pathology.
- Published
- 1998
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