RESUMEN
Presented in the article is a clinical case report concerning a 41-year-old female patient with atresia of the first segment of the subclavian artery without combination with other defects and developmental disorders. Described are the process of making the diagnosis and the course of the operative intervention performed, i.e. carotid-subclavian bypass grafting. This is followed by assessing the early postoperative period and immediate therapeutic results.
Asunto(s)
Arteria Subclavia , Injerto Vascular/métodos , Malformaciones Vasculares , Adulto , Angiografía , Femenino , Humanos , Isquemia/etiología , Isquemia/fisiopatología , Arteria Subclavia/anomalías , Arteria Subclavia/diagnóstico por imagen , Arteria Subclavia/cirugía , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Extremidad Superior/irrigación sanguínea , Extremidad Superior/fisiopatología , Malformaciones Vasculares/diagnóstico , Malformaciones Vasculares/fisiopatología , Malformaciones Vasculares/cirugía , Insuficiencia Vertebrobasilar/etiología , Insuficiencia Vertebrobasilar/fisiopatologíaRESUMEN
The article presents a morphological study of UVJ removed during surgery in 110 children with stage III hydronephrosis. Morphological changes in resected UVJs indicate a predominance of sclerotic transformation accompanied by different types of dysplasia.
Asunto(s)
Hidronefrosis/cirugía , Uréter/anomalías , Obstrucción Ureteral/cirugía , Vejiga Urinaria/anomalías , Femenino , Humanos , Hidronefrosis/congénito , Hidronefrosis/diagnóstico , Hidronefrosis/etiología , Lactante , Recién Nacido , Masculino , Índice de Severidad de la Enfermedad , Tomografía Computarizada por Rayos X , Uréter/cirugía , Obstrucción Ureteral/congénito , Obstrucción Ureteral/diagnóstico , Obstrucción Ureteral/etiología , Vejiga Urinaria/cirugía , Urodinámica , UrografíaRESUMEN
The one of the most common defects of the ureter-vesical segment in children is the condition, leading to a disorder of obturative function of this segment. Complications of vesicoureteral reflux include continuously recurrent pyelonephritis, reflux nephropathy. In this regard, the choice of the optimal treatment strategy based on minimal invasion is considered as one of the priorities of pediatric urology. The article presents the data obtained during the treatment of VUR in children of different ages in the Clinic of Reproductive Health FSBSI SCCH. A comparative evaluation of the results of endoscopic correction of vesicoureteral reflux depending on the kind of the bulking agent was performed. It was found that the use of endocorrection of reflux is highly effective surgical procedure, with the high number of positive results against the background of use of bulking agent "vantris". The study discriminates a group of patients with vesicoureteral reflux, intractable for endoscopic correction with cystoscopically normal structure of the orifices that allows to refer this method to the initial stage of treatment of the disease.
Asunto(s)
Cistoscopía/métodos , Ureteroscopía/métodos , Reflujo Vesicoureteral/cirugía , Resinas Acrílicas/química , Materiales Biocompatibles/química , Niño , Preescolar , Humanos , Lactante , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Urografía , Reflujo Vesicoureteral/diagnóstico por imagenRESUMEN
The article presents the results of evaluation of compensation abilities of kidney based on the identification of volume of functioning renal tissue according to the single-photon emission scintigraphy (SPECT) and planar scintigraphy. The study included adult patients (65 patients with renal cell carcinoma, 32 patients with renal cysts and 20 patients without renal involvement) and pediatric patients aged 1 to 17 years (57 patients with various non-neoplastic lesions of the kidney). The following parameters were used: volume ratio of functioning tissue and the specific activities of the affected and contralateral kidneys, and the volumetric ratio of volumes estimated to the reference kidney volume depending on anthropomorphic data of patient (age and sex). It was found that the maximum compensatory renal reserve occurs in the case of reducing the volume of functioning tissue of the affected kidney and the simultaneous increase in the volume ofcontralateral kidney.
Asunto(s)
Enfermedades Renales/diagnóstico por imagen , Enfermedades Renales/fisiopatología , Pruebas de Función Renal/métodos , Riñón/diagnóstico por imagen , Riñón/fisiopatología , Adulto , Femenino , Humanos , Masculino , Cintigrafía/métodosRESUMEN
The leghaemoglobins have oxygen affinities 11 to 24 times higher than that of sperm whale myoglobin, due mainly to higher rates of association. To find out why, we have determined the structures of deoxy- and oxy-leghaemoglobin II of the lupin at 1.7 A resolution. Results confirm the general features found in previous X-ray analyses of this protein. The unique feature that has now emerged is the rotational freedom of the proximal histidine. In deoxy-leghaemoglobin the imidazole oscillates between two alternative orientations, eclipsing either the lines N1-N3 or N2-N4 of the porphyrin; in oxy-leghaemoglobin it is fixed in a staggered orientation. The iron atom moves from a position 0.30 A from the plane of the pyrrole nitrogen atoms in deoxy- to a position in the plane in oxy-leghaemoglobin while the Fe-