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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 27 (1994), S. 3575-3579 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 65 (1987), S. 885-887 
    ISSN: 1432-1440
    Keywords: Hereditary angioedema ; Aortitis ; Cerebral embolism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 28-year-old male with hereditary angioedema died of an extensive stroke. Autopsy revealed cicatricial aortitis with narrowing of the coronary ostia, myocardial infarctions, and a left ventricular mural thrombus. There was neither acute inflammation of the aorta nor systemic vasculitis. A possible association of the aortitis with the hereditary angioedema is discussed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1440
    Keywords: Weightlessness ; Static exercise ; Extracellular muscle volume ; Heart rate ; Blood pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Afferent nerve fibers from receptors situated in the interstitium of skeletal muscles can induce cardiovascular reflexes. It has been shown that these interstitial muscle receptors are also sensitive to the local state of hydration: increased heart rates and blood pressure values were seen during dynamic and static exercise after local dehydration on earth. Since weightlessness leads to a persisting fluid loss in the lower part of the body, we hypothesized that leg exercise in space would augment heart rate and blood pressure responses to a similar extent as during local, interstitial dehydration on earth. Initial measurements during weightlessness were obtained in one subject after 6 days of space flight. Heart rate and blood pressure responses to light static foot plantar flexion (18% of maximal voluntary contraction) were recorded in two sessions. To eliminate the influence of muscle perfusion, exercise was performed during a period of arterial occlusion obtained by means of pneumatic cuffs at mid-thigh level. Identical protocols were used in the pre- and postflight controls, which were performed both in the sitting posture and in a −90° tilted sitting posture assumed 30–40 min before arterial occlusion. During weightlessness the exercise responses of heart rate and systolic and diastolic blood pressure closely followed the tracings obtained with the tilted sitting posture on ground. The response amplitudes in these states of reduced lower limb volumes (about 20/min and 20 mmHg, respectively) exceeded the responses in the supine position by a factor of at least 2. Enhancement of cardiovascular reflexes following local fluid losses of skeletal muscles appears to be a general phenomenon that can also be seen during weightlessness.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 10 (2000), S. 1332-1334 
    ISSN: 1432-1084
    Keywords: Key words: Left atrial aneurysm ; Posteroanterior X-ray ; MR imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report a case of an acquired mid-sized extrapericardial aneurysm in the area of the left atrial appendage and demonstrate the diagnostic impact of several imaging methods. Chest radiography gave a hint to the diagnosis with a bulky mass of soft tissue density appearing adjacent to the left atrial appendage. Transthoracic as well as transesophageal echocardiography missed the origin of the aneurysm. Magnetic resonance imaging helped to establish the diagnosis with use of a coronal imaging plane. No contrast agent was necessary. Thus, the combination of chest X-ray and MRI provided excellent support for patient management.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 9 (1999), S. 1745-1754 
    ISSN: 1432-1084
    Keywords: Key words: Magnetic resonance angiography ; Contrast-enhanced time-of-flight MRA ; Pulmonary arteries ; Pulmonary embolism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. In the past few years magnetic resonance angiography (MRA) of the pulmonary vasculature has advanced from a research tool to a clinically relevant imaging modality. Early 2D phase-contrast and time-of-flight (TOF) sequences without the use of contrast agents were time-consuming and limited by considerable imaging and motion artifacts. Since the introduction of MR scanners with stronger gradients (〉 20 mT/m) and contrast-enhanced techniques, imaging of the pulmonary vasculature with adequate spatial resolution within a single breathhold is now possible. In the detection of pulmonary embolism in the lobar or segmental arteries, contrast-enhanced MRA is now on the verge of being considered an established modality, possibly competing with conventional pulmonary angiography and contrast-enhanced helical CT. In the future, utilization of phased-array torso coils, the application of navigator pulse sequences, and 3D time-resolved ultrafast MRA will overcome the final limitations of current techniques. Blood-pool MR contrast agents may provide a “one-stop-shopping” approach to the investigation of lower extremity veins and pulmonary arteries in venous thromboembolism.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of orthopaedic surgery & traumatology 9 (1999), S. 205-207 
    ISSN: 1432-1068
    Keywords: Hip-replacement ; Reexposition ; Heparin ; Thrombocytopenia ; Arthroplastie de hanche ; Réexposition ; Thrombocytopénie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La thrombopénie type II provoquée par l'héparine est une complication liée à ce médicament rare mais importante, associée à une thrombopénie et des thromboses. Nous présentons ici un patient après une révision élective d'une plastie dé l'articulation coxo-fémorale. Avant l'opération, le patient a obtenu 5000 IU d'héparine non fractionnée trois fois par jour durant dix-neuf jours. Après l'opération, le patient a eu un abaissement du nombre de plaquettes sanguines de 236'000/μl à 69'000/μl, il a développé une thrombose de la veine iliaque ainsi qu'une embolie pulmonaire. L'héparine étant supposée être à l'origine de la thrombopénie, celle-ci a été remplacée par du Sodium-Danaparoid en application sous-cutanée comme anticoagulant. Le nombre de plaquettes est alors remonté à un niveau normal pour trois jours. Suite à un test d'agrégation liée à l'héparine négatif, la thérapie aux anticoagulants a été poursuivie avec de l'héparine non fractionnée appliquée par voie intraveineuse à haute dose, la capacité de coagulation ayant été contrôlée par le test PTT (temps de thrombine partiel). Deux jours après réexposition à l'héparine, les plaquettes ont rechuté à 34'000/μl. is jours après réexposition à l'héparine le patient est mort â la suite d'une insuffisance cardiopulmonaire. Une analyse du sang a démontré la présence d'immunoglobuline contre l'héparine et le facteur de plaquette 4. Mots-clés: Arthroplastie de hanche - Réexposition - Thrombocytopénie
    Notes: Summary The heparin-induced thrombocytopenia type II is a rare but important drug related complication associated with thrombocytopenia and thrombosis. We report on a patient with elective revision of the total hip arthroplasty. Preoperatively for nineteen days, the patient received unfractionated heparin 5000 IU three times daily for thromboprophylaxis. Postoperatively the patient developed a platelet drop from 236000/μl to 69000/μl an iliac vein thrombosis and pulmonary embolism. In assumption of heparin induced thrombocytopenia anticoagulation was switched to danaparoid-sodium subcutaneously. Platelet count rised to normal values while three days. Because of a negative heparin-induced platelet aggregation assay, anticoagulation was switched to a PTT controlled high dose intravenous unfractionated heparin. Two days after re-exposition to heparin platelet counts dropped to 34000/μl blood. The patient died 12 days after readministration of heparin due to respiratory and circulatory failure. Postmortem analysis of serum revealed positive heparin/platelet factor 4 IgG-antibodies.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 49 (1996), S. 365-369 
    ISSN: 1432-1041
    Keywords: Key words Fluorescence videomicroscopy ; Histamine ; Cetirizine; sodium fluorescein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract A new technique which combines skin micro injection of minute amounts of drugs (0.5 μl) and measurement of capillary permeability by intravital fluorescence videomicroscopy and densitometry is introduced. Glass micropipettes with a tip diameter of 7–9 μm are inserted by a micromanipulator into the stratum papillare containing the capillary loops and used for microinjection by microsyringe and special dispenser. Transcapillary diffusion of sodium fluorescein applied by intravenous bolus injection is visualised by fluorescence videomicroscopy and stored on videotape. Perivascular fluorescent light intensity (FLI) is measured in arbitrary units (AU) by videodensitometry around the site of microinjection during playback of the videotapes. The method was tested by microinjection of 0.5 μl histamine (1‰ solution) at the distal tibial plateau. Mean FLI values representing microvascular permeability were 2186 AU 10 min after microinjection of histamine, 420 AU after physiologic saline and 1228 AU after histamine combined with oral intake of 20 mg cetirizine. Cetirizine significantly reduced (P 〈 0.01) the increased permeability induced by histamine. However, the mean values after injection of the H1-blocker were still significantly enhanced (P 〈 0.01) when compared to the mean values observed after injection of physiologic saline solution, which provoked only minor microtrauma. The technique offers new scope for pharmacological testing in man.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 49 (1996), S. 365-369 
    ISSN: 1432-1041
    Keywords: Fluorescence videomicroscopy ; Histamine ; Cetirizine ; sodium fluorescein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract A new technique which combines skin microinjection of minute amounts of drugs (0.5 μl) and measurement of capillary permeability by intravital fluorescence videomicroscopy and densitometry is introduced. Glass micropipettes with a tip diameter of 7–9 μm are inserted by a micromanipulator into the stratum papillare containing the capillary loops and used for microinjection by microsyringe and special dispenser. Transcapillary diffusion of sodium fluorescein applied by intravenous bolus injection is visualised by fluorescence videomicroscopy and stored on videotape. Perivascular fluorescent light intensity (FLI) is measured in arbitrary units (AU) by videodensitometry around the site of microinjection during playback of the videotapes. The method was tested by microinjection of 0.5 μl histamine (1‰ solution) at the distal tibial plateau. Mean FLI values representing microvascular permeability were 2186 AU 10 min after microinjection of histamine, 420 AU after physiologic saline and 1228 AU after histamine combined with oral intake of 20 mg cetirizine. Cetirizine significantly reduced (P〈0.01) the increased permeability induced by histamine. However, the mean values after injection of the H1-blocker were still significantly enhanced (P〈0.01) when compared to the mean values observed after injection of physiologic saline solution, which provoked only minor microtrauma. The technique offers new scope for pharmacological testing in man.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 141 (1999), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We describe a 34-year-old woman with periarteritis nodosa (PAN) presenting as a breast lesion. Localized involvement of the breast is an unusual manifestation of PAN. To date, 10 cases have been reported: all were in women with an age range of 45–78 years (mean 63). In most cases, breast lesions were an isolated finding, and the prognosis was favourable, setting them apart from the more common form of systemic PAN. The case presented is unusual in that vasculitis developed in the postpartum period, and was associated with cutaneous PAN-like lesions elsewhere on the body, and digital artery occlusion. The most important differential diagnoses of PAN of the breast are infectious mastitis, mammary malignancy and other forms of idiopathic vasculitides of the breast, e.g. giant cell arteritis and Wegener granulomatosis.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 372 (1989), S. 41-52 
    ISSN: 0022-328X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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