Acute Kidney Injury Due to Ureter Compression Following Iliac Venous Stenting.

Purpose: To report the occurrence of acute postrenal kidney failure caused by external ureteral obstruction after iliac venous stent placement.

Case Report: A 73-year-old male patient presented with a chronic swelling and feeling of heaviness of his right leg. The presence of venous thrombosis was excluded by duplex ultrasound (DUS).

Unraveling novel mutation patterns and morphological variations in two dalbavancin-resistant MRSA strains in Austria using whole genome sequencing and transmission electron microscopy.

Background: The increasing prevalence of methicillin-resistant Staphylococcus aureus (MRSA) strains resistant to non-beta-lactam antimicrobials poses a significant challenge in treating severe MRSA bloodstream infections. This study explores resistance development and mechanisms in MRSA isolates, especially after the first dalbavancin-resistant MRSA strain in our hospital in 2016.

Methods: This study investigated 55 MRSA bloodstream isolates (02/2015-02/2021) from the University Hospital of the Medical University of Vienna, Austria.

Differences in oxazolidinone resistance mechanisms and small colony variants emergence of induced in an resistance development model.

Invasive infections are associated with a high burden of disease, case fatality rate and healthcare costs. Oxazolidinones such as linezolid and tedizolid are considered potential treatment choices for conditions involving methicillin resistance or penicillin allergies. Additionally, they are being investigated as potential inhibitors of toxins in toxin-mediated diseases.

A case of fulminant respiratory diphtheria in a 24-year-old Afghan refugee in Austria in May 2022: a case report.

Purpose: Raising awareness of respiratory diphtheria and for the importance of early antitoxin administration.

Methods: Report of a case of fulminant, imported respiratory diphtheria in an otherwise healthy 24-year-old Afghan refugee in Austria in May 2022.

Result: This was the first case of respiratory diphtheria in Austria since 1993.

Digital Lesions in Dogs: A Statistical Breed Analysis of 2912 Cases.

Breed predispositions to canine digital neoplasms are well known. However, there is currently no statistical analysis identifying the least affected breeds. To this end, 2912 canine amputated digits submitted from 2014-2019 to the Laboklin GmbH & Co.

Histopathological findings and canine pancreatic lipase immunoreactivity in normal dogs and dogs with inflammatory and neoplastic diseases of the pancreas.

Background: Diagnosis of pancreatic diseases in dogs is still challenging because of variable clinical signs, which do not always correspond with clinical pathology and histopathological findings.

Objectives: To characterize inflammatory and neoplastic pancreatic diseases of dogs and to correlate these findings with clinical findings and canine pancreatic lipase immunoreactivity (cPLI) results.

Animals: Tissue specimens and corresponding blood samples from 72 dogs submitted for routine diagnostic testing.

Clinical and Pathological Data of 17 Non-Epithelial Pancreatic Tumors in Cats.

Tumors of mesenchymal origin are rarely reported in the pancreas. Therefore, this study characterized 17 feline non-epithelial pancreatic tumors, including clinical data, histopathology, and immunohistochemistry. Seventeen feline pancreatic tissue samples were investigated histopathologically and immunohistochemically.

Histopathology and Feline Pancreatic Lipase Immunoreactivity in Inflammatory, Hyperplastic and Neoplastic Pancreatic Diseases in Cats.

The most common pancreatic diseases in cats are pancreatitis and exocrine pancreatic insufficiency (EPI). Non-invasive methods, such as serological quantification of feline pancreatic lipase immunoreactivity (fPLI), are often used in the diagnosis of pancreatitis. Previous studies have compared fPLI concentrations with histopathology, considered to be the gold standard for diagnosis of feline pancreatitis.

Characterization of 22 Canine Pancreatic Carcinomas and Review of Literature.

Pancreatic carcinomas are rare in dogs and clinical signs are mostly non-specific. The literature on clinically and pathologically characterized canine exocrine pancreatic tumours is limited to 76 cases reported since 1963. This retrospective study analysed formalin-fixed samples of pancreatic carcinomas from 22 dogs, obtained during elective exploratory surgery (n = 16) or if the dog was humanely destroyed (n = 6).

Primary Solid and Cystic Tumours of the Exocrine Pancreas in Cats.

Tumours of the exocrine pancreas are rare in cats and few cases are described in the literature. Cystic tumours of the pancreas are not included in the World Health Organization (WHO) international histological classification of tumours of domestic animals. The aim of this study was to characterize the pathology of primary epithelial tumours of the feline exocrine pancreas, with emphasis on cystic tumours.

Microstructural evolution of a dual hardening steel during heat treatment.

Dual hardening steels combine precipitation of both secondary hardening carbides and intermetallic phases in a martensitic matrix. Due to this combination, the carbon content necessary to achieve high hardness levels can be reduced, resulting in a decreased amount of large and embrittling carbides. In this study, the influence of different heat treatments on microstructure evolution and secondary hardness is investigated.

Spontaneously Arising Tumours and Tumour-like Lesions of the Cervix and Uterus in 83 Pet Guinea Pigs (Cavia porcellus).

Tumours and tumour-like lesions are rare findings in the genital system of guinea pigs. The aim of the present study was to characterize nodular lesions in the cervix and uterus of guinea pigs submitted for histopathological diagnosis. Samples from 83 pet animals were investigated.

Composite Operators in the Twistor Formulation of N=4 Supersymmetric Yang-Mills Theory.

We incorporate gauge-invariant local composite operators into the twistor-space formulation of N=4 super Yang-Mills theory. In this formulation, the interactions of the elementary fields are reorganized into infinitely many interaction vertices and we argue that the same applies to composite operators. To test our definition of the local composite operators in twistor space, we compute several corresponding form factors, thereby also initiating the study of form factors using the position twistor-space framework.

The role of tactile support in arm levitation.

How many persons need tactile support à la Milton H. Erickson to achieve arm levitation during hypnosis? How do these differ from those who do not need it? Hypnotic arm levitation was suggested three times consecutively to 30 medium suggestible students. Sixteen succeeded without any tactile support; 7 needed it one or two times; 5 needed it every time; and 2 achieved no arm levitation at all.

Harmonic R matrices for scattering amplitudes and spectral regularization.

Planar N = 4 supersymmetric Yang-Mills theory appears to be integrable. While this allows one to find this theory's exact spectrum, integrability has hitherto been of no direct use for scattering amplitudes. To remedy this, we deform all scattering amplitudes by a spectral parameter.

Cerebral vasoreactivity decreases overnight in severe obstructive sleep apnea syndrome: a study of cerebral hemodynamics.

Background: OSAS has been associated with surrogate markers of atherosclerosis and is a known risk factor for stroke. However, there is limited data on the effects of recurring apneas in severe OSAS on cerebral circulation and their consequences on cerebrovascular reactivity and compliance.

Objective: To evaluate cerebral blood flow velocity (CBFV) changes and vascular compliance in patients with severe obstructive sleep apnea syndrome (OSAS) using transcranial Doppler sonography (TCD) and cerebral pulse transit time (PTT).

Temporally resolved fluctuation analysis of sleep ECG.

The correlation behavior in the heart beat rate significantly differs with respect to light sleep, deep sleep, and REM sleep. We investigate whether fluctuations of the heart beat rhythm may serve as a surrogate parameter for rapidly changing sleep phenomena, and if these changes are accessible by progressive beat-by-beat analysis of the sleep electrocardiogram (ECG).

Carotid resection and reconstruction for locally advanced head and neck tumors.

Head and neck surgeons hesitate to resect the carotid artery because of the postoperative risk of neurologic sequelae. However, there is no curative therapeutic option for head and neck neoplasms involving the carotid artery, with the exception of complete tumor removal. To evaluate the benefits and risks of carotid revascularization techniques in locally advanced head and neck tumors we performed a retrospective analysis in an institutional, tertiary care medical center.

[Glomus caroticum chemodectoma. Review on current diagnosis and therapy].

Carotid body tumors are rare neoplasms arising from the small chemoreceptor organ in the adventitia of the common carotid bifurcation. Patients with carotid body tumours usually present with a gradually enlarging non-tender anterolateral neck mass. Differential diagnosis includes metastatic lymph nodes, carotid artery aneurysm, salivary gland tumour, branchial cleft cyst, and neurogenic or thyroid tumours.

[Management of severe infection complicating aortofemoral grafts].

Objective: Infection of the retroperitoneum after implantation of an abdomino-femoral aortic graft remains one of the main problems in vascular surgery. On basis of a critical review of own experiences we evaluated the management of this difficult clinical situation.

Patients: From 1970-1996 1500 aortofemoral graft operations (aneurysmal disease: 512, aortoiliacal occlusive disease: 988) were performed.