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1.
Int. braz. j. urol ; 44(6): 1182-1193, Nov.-Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-975673

ABSTRACT

ABSTRACT Purpose: This study aims to evaluate the link between preoperative parameters and oxidative stress (OS) markers in the bladder wall of men undergoing open prostatectomy. Materials and Methods: From July 2014 to August 2016, men aged ≥ 50 years and presenting with LUTS were prospectively enrolled. Preoperative assessment included validated questionnaires (IPSS and OAB - V8), lower urinary tract ultrasound and urodynamics. Bladder biopsies were taken during open prostatectomy for determination of OS markers. Increased OS was defined by increased concentration of malondialdehyde (MDA) and / or decreased concentration of antioxidant enzymes (superoxide dismutase and / or catalase). P<0.05 was regarded as statistically significant. Results: Thirty - eight consecutive patients were included. Mean age was 66.36 ± 6.44 years, mean prostate volume was 77.7 ± 20.63 cm3, and mean IPSS was 11.05 ± 8.72 points. MDA concentration was increased in men with severe bladder outlet obstruction (BOO grade V - VI according to the Schaefer's nomogram) in comparison with BOO grade III - IV (p = 0.022). Patients with severe LUTS also had higher MDA concentration when compared to those with mild LUTS (p = 0.031). There was a statistically significant association between increased post - void residual urine (cut off ≥ 50 mL) and not only higher levels of MDA, but also reduced activity of SOD and catalase (p < 0.05). Conclusions: This pilot study showed that severity of LUTS and BOO were associated with increased MDA concentration in the bladder wall of men undergoing open prostatectomy. Further studies are still needed to assess the role of non - invasive biomarkers of OS in predicting bladder dysfunction in men with LUTS.


Subject(s)
Humans , Male , Aged , Urinary Bladder Neck Obstruction/surgery , Oxidative Stress/physiology , Lower Urinary Tract Symptoms/surgery , Prostatectomy , Urinary Bladder Neck Obstruction/physiopathology , Urinary Bladder Neck Obstruction/blood , Severity of Illness Index , Biomarkers/blood , Pilot Projects , Prospective Studies , Lower Urinary Tract Symptoms/physiopathology , Lower Urinary Tract Symptoms/blood
2.
Rev. Soc. Bras. Clín. Méd ; 7(6)nov.-dez. 2009.
Article in Portuguese | LILACS | ID: lil-533120

ABSTRACT

JUSTIFICATIVA E OBJETIVOS: A granulomatose de Wegener (GW) é uma vasculite necrosante e granulomatosa de origem idiopática, que acomete pequenas e médias artérias das vias respiratórias altas e baixas e rins. Tem prevalência estimada em 3:100.000 habitantes, não apresenta predomínio por sexo e tem pico de incidência entre a quarta e quinta décadas de vida. O objetivo desse estudo foi relatar e discutir um caso dessa rara doença, reforçando a importância de um diagnóstico precoce, a fim de instituira terapêutica adequada e proporcionar ao paciente uma maior sobrevida. RELATO DO CASO: Paciente do sexo masculino, 55 anos, atendido no pronto-socorro com sintomas relacionados às vias aéreas associado a importante emagrecimento. Alguns achados como proteína C-reativa de 117,6 mg/L, tecido pulmonar necrótico permeado por células inflamatórias, ou até mesmo a titulação do cANCA: reagente até 1/40, mesmo que não sejam exclusivos de GW, juntos auxiliaram na conclusão do diagnóstico. Após exaustiva investigação e suspeição diagnóstica, confirmou-se a hipótese de GW, com subsequente prescrição de tratamento adequado, tendo o paciente evoluído favoravelmente, com remissão completa dos sintomas, sendo encaminhado posteriormente para acompanhamento ambulatorial. CONCLUSÃO: Devido a GW ser uma doença incomum e de difícil diagnóstico, sua hipótese deve ser aventada na presença de quadro clínico sugestivo, determinado principalmente por febre, perda de peso, dispneia, hemoptise, hematúria, poliartralgias e mialgias, com o objetivo de se realizar exames mais aprofundados em relação a essa entidade clínica e se instituir a terapêutica imunossupressora, obtendo assim, uma redução na morbimortalidade e proporcionando uma sobrevida prolongada.


Subject(s)
Humans , Male , Middle Aged , Granulomatosis with Polyangiitis/diagnosis , Vasculitis
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