La visualización de la médula y la cola de caballo, sin necesidad de contraste intratecal, hace que la RM sea el examen ideal para identificar las raíces nerviosas conjuntas, ofreciendo una ventaja clara sobre la TAC. La RM es, en muchas ocasiones, superior a la TAC simple en el diagnóstico de las anomalías de las raíces nerviosas además la RM tiene la ventaja de los planos sagitales y coronales. Presentamos tres casos de raíces lumbares conjuntas intervenidos en el Servicio de Radiología del Hospital Addolorata de Roma y en el Servicio de Neurorradiología del Hospital Universitario de Roma “La Sapienza” entre 2001 y 2004, representando 0.25% de todos los 1200 pacientes evaluados mediante TAC y RM, y revisamos los aspectos diagnósticos presentados en la literatura mundial. Download scientific diagram a-c) Tomografa computarizada sin y con contraste que muestra la lesin parietal parasagital derecha d-f) Resonancia. Las raíces conjuntas frecuentemente se aprecian en la RM. Cursan habitualmente con dolor (episodios de lumbalgia y lumbociatalgia) y sin déficit motor ni sensitivo. La raíces lumbares pueden ser conjuntas o bífidas y frecuentemente son descubiertas en las autopsias clínicas. Las anomalías congénitas de los nervios raquídeos lumbares no son muy frecuentes y suelen ser difíciles de detectar en TAC sin contraste. In fact, the accurate information derived from MRI of multiple planes may be priceless for the preoperative and diagnostic evaluation of lumbosacral nerve root anomalies. de dosis en tomografa computarizada ponderado (CTDIw) e ndice de dosis en. MR imaging is a better diagnostic procedure (in comparison to CT) for the differentiation of nerve root anomalies and, in particular, coronal sections furnish a precise definition of the profile of the conjoined/enlarged rootlets. Sin embargo, es necesario recordar que el uso de radiacin ionizante est. We report our experience with three cases of conjoined lumbosacral nerve roots and analyze the most important literature on this topic. Our study comprised three patients with conjoined lumbosacral nerve roots, representing 0.25% of a total of 1200 patients who underwent lumbosacral CT/MRI procedures in the Addolorata Hospital and in the Service of Neuroradiology of the University of Rome “La Sapienza” during the last three years (March 2001-March 2004). Firstly described as an incidental finding during autopsies or surgical procedures performed for lumbar disk herniations and often asymptomatic, lumbosacral nerve root anomalies have been more frequently described in the last years due to the advances made in radiological diagnosis (metrizamide myelography and CT, MRI). Generally speaking, these anomalies may consist of a bifid, conjoined structure, of a transverse course or of a characteristic anastomized appearance. Various types of anomalies of the lumbosacral nerve roots have been documented in the available international literature. Las tomografas computarizadas se pueden realizar con y sin contraste, segn las circunstancias mdicas de cada caso. This systematic review gives a comprehensive description of IE by Klebsiella and provides information on epidemiology, clinical manifestations, therapeutic strategies and their outcomes.Lumbosacral nerve root anomalies are a rare group of congenital anatomical anomalies. Una tomografa computarizada sin contraste es una tomografa computarizada que se realiza sin el uso de un tinte especial destinado a hacer que los rganos se vean de manera ms visible, segn Johns Hopkins Medicine. Infection at the aortic valve was independently associated with mortality by IE. Clinical cure was noted in 80.3%, while the overall mortality was 19.4%. Surgical treatment along with antimicrobials was performed in 37.3% of included patients. Cephalosporins, aminoglycosides, and carbapenems were the most frequently used antimicrobials. Fever and sepsis were the most frequent clinical presentations, followed by embolic phenomena, paravalvular abscess, and heart failure. The diagnosis was based on transthoracic echocardiography in 46.2%, while the diagnosis was set at autopsy in 9.2% of included patients. The aortic valve was the most commonly infected intracardiac site, followed by the mitral valve. A prosthetic valve was present in 16.4%, while the most common causative pathogen was K. In this review, a total of 66 studies were included, providing data for 67 patients. A systematic review of PubMed, Scopus and Cochrane library (through 27th January 2021) for studies providing epidemiological, clinical, microbiological as well as treatment data and outcomes of IE by Klebsiella species was performed. This study aimed to systematically analyze all cases of infective endocarditis (IE) by Klebsiella species in the literature.
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