Riemer Hja Slart

Universitair Medisch Centrum Groningen, Groningen, Groningen, Netherlands

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Publications (4)8.99 Total impact

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    ABSTRACT: Fluorodeoxyglucose positron emission tomography scanning has an established role in the diagnostic work-up of many malignant diseases and also in the evaluation of cancer treatment response. Fluorodeoxyglucose positron emission tomography may, however be non-specific as infectious processes are depicted as well. We present a patient with longstanding leg pain and weakness due to plexopathy developed a few years after treatment for prostate cancer. Prostate-specific antigen was raised and magnetic resonance imaging showed contrast uptake in thickened sacral nerves, suspicious for metastasis. While fluorodeoxyglucose positron emission tomography showed increased uptake in the plexus region, (11)C-Choline- positron emission tomography did not show any uptake. It was concluded that the FDG uptake reflected plexus neuritis and no tumor. Treatment for pain relief was started. (11)C-Choline- positron emission tomography can be used to detect metastasis in patients with plexopathy suspicious for malignancy, while fluorodeoxyglucose positron emission tomography is more sensitive to inflammatory processes.
    Cases Journal 01/2009; 2:9323.
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    ABSTRACT: Preclinical studies have consistently shown that erythropoietin (EPO), administered after an acute myocardial infarction (AMI), reduces infarct size and improves left ventricular function. Furthermore, EPO promotes endothelial progenitor cell growth, which increases angiogenesis. A recent pilot study in patients with AMI suggested that a single bolus of EPO was safe and well tolerated. The HEBE III is a multicenter, prospective, randomized, open-label trial with blinded evaluation of the primary end point. The primary objective is to study the effect on left ventricular ejection fraction (LVEF) of a single bolus of EPO, administered directly after a primary percutaneous coronary intervention (PCI) for a first AMI. A total of 466 patients with thrombolysis in myocardial infarction 0/1 flow before the PCI procedure and 2/3 flow after a successful PCI are randomly assigned to either receive standard medical care or a single bolus with 60,000 IU of EPO on top of standard medical care within 3 hours of the PCI procedure. Primary end point of the study is LVEF after 6 weeks, assessed by planar radionuclide ventriculography. If an improvement of LVEF with a single bolus of EPO is demonstrated, this simple approach might further improve clinical outcome of patients with AMI.
    American heart journal 06/2008; 155(5):817-22. · 4.65 Impact Factor
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    ABSTRACT: A 67-year-old man presented to our hospital with general malaise, fever and diffuse abdominal and lower back pain 7 weeks after endovascular aneurysm repair. Blood samples showed a leukocyte count of 10.9 x 10(9)/l and a C-reactive protein of 239 mg/l. The computed tomography (CT)-scan showed fluid collections behind the proximal part of the endovascular graft and dorsal to the aorta. CT-guided translumbar needle aspiration of these collections yielded growth with Listeria monocytogenes. Prosthetic endograft infection is an extremely rare event, especially when it is caused by L. monocytogenes. Given the scarcity of this complication, no consensus has been reached for its treatment. In the described case, radiological drainage and prolonged antibiotic treatment resulted in favourable outcome at midterm follow-up with preservation of the endograft.
    Journal of Vascular Surgery 04/2008; 47(3):635-7. · 2.88 Impact Factor
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    ABSTRACT: In the present study we sought to determine the long-term prognostic value of left ventricular ejection fraction (LVEF), assessed by planar radionuclide ventriculography (PRV), after ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PPCI). In total 925 patients underwent PRV for LVEF assessment after PPCI for myocardial infarction before discharge from the hospital. PRV was performed with a standard dose of 500 Mbq of 99mTc-pertechnetate. Average follow-up time was 2.5 years. Mean (+/- SD) age was 60 +/- 12 years. Mean (+/- SD) LVEF was 45.7 +/- 12.2 %. 1 year survival was 97.3 % and 3 year survival was 94.2 %. Killip class, multi vessel-disease, previous cardiovascular events, peak creatin kinase and its MB fraction, age and LVEF proved to be univariate predictors of mortality. When entered in a forward conditional Cox regression model age and LVEF were independent predictors of 1 and 3 year mortality. LVEF assessed by PRV is a powerful independent predictor of long term mortality after PPCI for STEMI.
    BMC Cardiovascular Disorders 02/2008; 8:4. · 1.46 Impact Factor