Search

Eine 32-jahrige Frau in der 32. Schwangerschaftswoche erlitt zu Hause nach akutem Thoraxschmerz einen Kreislaufstillstand auf dem Boden einer pulslosen ventrikularen Tachykardie. Nach sofortiger Defibrillation mit ROSC zeigte sich als Ursache ein ST-Hebungsinfarkt aufgrund einer Koronararteriendissektion. Sie erhielt zwei Drug-eluting Stents und eine duale Plattchenaggregationshemmung. Die Echokardiographie zeigte eine Akinesie von Apex und Vorderwand. Bei hohem Risiko fur eine Stentthrombose erfolgte die Fortsetzung der dualen Plattchenhemmung bis zur Sectio caesarea in der 35. SSW. Intraoperativ erhielt die Patientin zwei Erythrozytenkonzentrate, ein Thrombozytenkonzentrat, 4 g Fibrinogen und 2 g Tranexamsaure. Acht Tage nach Entbindung verschlechterte sich die linksventrikulare Funktion zunehmend und die Patientin entwickelte eine Herzinsuffizienz.

Allergic contact eczema due to type IV reactions are more frequent than irritative eczema in facial skin, particularly in the sensitive periorbital region. Concomitant eczema of different locations is pathognomonic and allows a distinction from seborrhoic dermatitis. Avoidance of allergen exposure is mandatory for an effective treatment; therefore allergological examinations have a very high significance. Patch tests with a wide spectrum of potential allergens have to be included in these tests. Therapeutic regimes include a restrictive use of topical steroids. Substances like calcineurin inhibitors are the first-line therapy in facial atopic dermatitis, in spite of therapeutic effects, they have not yet been approved for other forms of periorbital dermatitis.

In veterinary medicine, limb-sparing techniques are most implemented when the uninvolved limbs are affected by other orthopaedic or neurological disorders, in large breeds or when the owner declines amputation. This report describes the surgical technique used for implantation of an endoprosthesis following tumour resection in the distal radius in 3 dogs using both standard and angle-stable plates. Endoprosthesis offers an easy and readily available surgical alternative to cortical allografts. Despite post-operative complications, this technique resulted in a good quality of life in all 3 dogs.

Ankyloglossia, commonknown as tongue-tie, is a rare congenital oral anomaly in dogs. A complete attachment of the lingual frenulum to the floor of the oral cavity leads to limited mobility of the tongue including problems during eating and swallowing. In humans ankyloglossia is a common anomaly in newborn infants. In our report a 5-month old Anatolian Shepherd dog was surgically treated and full function of the tongue could be achieved with a horizontal-to-vertical frenuloplasty.

We introduce a p-i-n-type heterojunction architecture for organic solar cells where the active region is sandwiched between two doped wide-gap layers. The term p-i-n means here a layer sequence in the form p-doped layer, intrinsic layer and n-doped layer. The doping is realized by controlled co-evaporation using organic dopants and leads to conductivities of 10-4 to 10-5 S/cm in the p- and n-doped wide-gap layers, respectively. The photoactive layer is formed by a mixture of phthalocyanine zinc (ZnPc) and the fullerene C60 and shows mainly amorphous morphology. As a first step towards p-i-n structures, we show the advantage of using wide-gap layers in M-i-p-type diodes (metal layer–intrinsic layer–p-doped layer). The solar cells exhibit a maximum external quantum efficiency of 40% between 630-nm and 700-nm wavelength. With the help of an optical multilayer model, we optimize the optical properties of the solar cells by placing the active region at the maximum of the optical field distribution. The results of the model are largely confirmed by the experimental findings. For an optically optimized device, we find an internal quantum efficiency of around 82% under short-circuit conditions. Adding a layer of 10-nm thickness of the red material N,N′-dimethylperylene-3,4:9,10-dicarboximide (Me-PTCDI) to the active region, a power-conversion efficiency of 1.9% for a single cell is obtained. Such optically thin cells with high internal quantum efficiency are an important step towards high-efficiency tandem cells. First tandem cells which are not yet optimized already show 2.4% power-conversion efficiency under simulated AM 1.5 illumination of 125 mW/cm2 .

Extrahepatic biliary tract rupture only rarely occur secondary to blunt or sharp trauma to the abdomen. Clinical symptoms result from chemical peritonitis and are unspecific. Recognition most often is delayed from several days to weeks, when patients suffer from ascites, icterus, dehydration and apathy. Surgical therapy depends of the site of laceration. In the present case, a dog with bile peritonitis was presented two weeks after being hit by a car. Explorative celiotomy revealed a rupture of the common bile duct. A cholecystojejunostomy was performed.

SummaryChronic lameness of the forelimb with a firm swelling at the medial aspect of the antebrachiocarpal joint can be caused by a tenosynovitis of the abductor pollicis longus muscle. Connective tissue proliferation leads to stenosis of the synovial sheath. The patients show pain in hyperflexion of the carpus. Radiographically, proliferative bone reactions at the distal radius can be found in advanced cases of the disease. If the results of medical treatment by injection of corticosteroids in the area of the synovial sheath are not successful, good results can be achieved by surgical release of the tendon. Based on 10 cases examined, aetiology, clinical findings and therapy are discussed and compared with de Quervain’s tenosynovitis in man.Lameness due to tenosynovitis of the abductor pollicis longus muscle is reported and findings and therapy of ten animals is discussed.

An eight-year-old, neutered female Rottweiler was presented with lameness of seven days duration. Radiographs were consistent with a distal radial bone tumour. Limb-sparing surgery was performed using a commercially available endoprosthesis with a locking bone plate. Histopathological examination of the resected bone revealed an intraosseous fibrosarcoma, and postoperative adjuvant chemotherapy was initiated three weeks after surgery. Despite initial satisfactory limb function, lameness worsened four months after surgery. Radiographs revealed large areas of bone lysis around the proximal and distal screws, leading to significant resorption of the radius and radial carpal bone with subsequent construct failure. Further treatment was declined by the owner and the dog was subsequently euthanased. This case illustrates that implant failure is not necessarily averted by the use of locking (compared with non-locking) implants combined with an endoprosthesis to treat distal radial tumours in dogs.

Die Beurteilung der Tubenfunktion bei einer Untersuchung in der Druckkammer erfolgt normalerweise aufgrund subjektiver Empfindungen der untersuchten Personen. Eine Registrierung der Trommelfellbewegungen wahrend Druckanderungen in der Druckkammer kann our erfolgen, wenn auch im abgeschlossenen Gehorgang der Druck laufend an den der Umgebung angeglichen wird. In einem ncuartigen Differentialmanometer bewirken spezielle Ausgleichsoffnungen, das nur Druckanderungen im Gehorgang durch schnelle Trommelfellbewegungen erfast werden, jedoch keine Druckschwankungen, die bei der Anderung des Ausendruckes oder durch die langsame Ausbuchtung des Trommelfells wahrend dieser Druckanderung entstehen. Die Registrierung einer schnellen Trommelfellbewegung als Ausschlag auf einem Schreibgerat zeigt eine Tubenoffnung an, die zu einem Druckausgleich zwischen Mittelohr und Umgebung gefuhrt hat.