Andressa Fernanda Kunz

Research Field

Strain (injury)

10.1016/j.virusres.2015.09.022

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Citations (15)

De Quervain’s Subacute Thyroiditis - Colour Doppler Sonography Findings

Ultraschall in der Medizin - European Journal of Ultrasound (2005)

Andressa Fernanda Kunz Wolfgang Blank Benjamin Braun

De Quervain's subacute nonsuppurative thyroiditis has been well characterised clinically: there usually is pain in the region of the thyroid due to local pressure. Typically, the patient feels generally ill with fever. Signs of inflammation (raised ESR and CRP) are measurable laboratory parameters. Occasionally, there is transient hyperthyroidism followed by hypothyroidism. Little data is available on the vascularisation of the thyroid in this clinical entity.Twenty-one patients with confirmed De Quervain's subacute thyroiditis were investigated and the findings were analysed retrospectively (clinical features, sonography, cytology in some cases). Ultrasound devices (Siemens Elegra and Acuson Sequoia) with 7 and 12 MHz ultrasound transducers and modern technology (harmonic imaging, panorama imaging and sensitive colour Doppler units with standardised instrument settings) were used.The structures of the thyroid was found to be inhomogeneous. The hypoechoic to nonechoic areas corresponded to the inflamed areas. An alteration in the morphology and topographic distribution was observed in the course of the illness. Normal or slightly increased vascularisation in the echogenically "healthy" regions of the thyroid were found in colour Doppler sonography. The peak systolic velocity (PSV) in the afferent arteries (superior and inferior thyroid arteries) was in the normal range (< 40 cm/s). The hypoechoic/nonechoic map-like areas showed a reduction or complete absence of blood flow.De Quervain's subacute thyroiditis can be conclusively diagnosed by sonography in more than 90 % of cases based on the history, typical clinical features and clinical test parameters indicating signs of inflammation. Colour Doppler sonography can be useful in differential diagnosis of unclear cases.

Subacute thyroiditis

Doppler sonography

10.1055/s-2005-858120

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Citations (30)

Detection and partial molecular characterization of <i>Picobirnavirus</i> in swine from the state of Minas Gerais, Brazil

Journal of Veterinary Medical Science (2020)

Nívia Carolina Lopes Rosado Marcus Rebouças Santos Laura Morais Nascimento Silva Viviane Sisdelli Assao Elaine Nery Araujo

Picobirnavirus (PBV) is a small two-segmented double-stranded RNA (dsRNA) virus that has been identified in diarrheic feces of a large range of animal hosts, including humans. For this reason, PBV has been recognized as an opportunistic agent of gastrointestinal disease. Even under these circumstances, there is a lack of studies regarding this pathogen. Not outstanding, in Brazil, the single description of the PBV occurrence in pigs was provided in the 1980s. Hence, this study aimed to verify the PBV occurrence in Brazilian swine farms and to perform molecular characterization of the identified strains. High genetic variability was found in the analyzed sequences. Further studies comprehending the infection of swine by PBV in Brazilian herds should be performed to provide more accurate information on its epidemiology and to discuss the role of the virus in gastrointestinal diseases.

10.1292/jvms.19-0565

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Citations (0)

High detection rate and genetic diversity of picobirnavirus in a sheep flock in Brazil

Virus Research (2018)

Andressa Fernanda Kunz Flávia Possatti José Antônio de Freitas Amauri Alcindo Alfieri Elisabete Takiuchi

Flock

10.1016/j.virusres.2018.06.016

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Citations (11)

Effects of long-term exposure to antimicrobial colistin sulfate (polymyxin E) over mixed cultures of nitrifiers and methanogens [Conference poster].

RAMIRAN 2013. 15th International Conference, Versailles, France, 3-5 June. 2013. Proceedings (2013)