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1.
Urology ; 115: 71-75, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29501625

RESUMO

OBJECTIVE: To compare the distance between the colon and the trajectory of percutaneous nephrolithotomy (PCNL) access both in prone and flank-free modified supine (FFMS) positions as measured on computed tomography and to study the effect of age, gender, BMI, side, and previous renal surgery as influencing factors. PATIENTS AND METHODS: In this prospective study, we included 367 patients scheduled for PCNL. All patients underwent low dose abdominal computed tomography both in prone and FFMS positions. Patients <18 years and those with previous colonic surgery or renal congenital anomalies were excluded. The perpendicular distance between the imaginary line of the renal access and the colon was measured. Findings were correlated to different influencing factors. RESULTS: Two hundred nineteen patients were males, and 148 were females. BMI of <30 were reported in 158 patients whereas BMI >30 in 209 patients. Data analysis showed that the mean perpendicular distance between colon and the renal access in FFMS and prone positions were 35.92 ± 0.22 mm and 17.78 ± 0.09 mm, respectively. In prone position only obesity, age, and overall interaction effect were the significant factors on the studied distance. In FFMS position, in addition to the effect of the prior factors, previous renal surgery also significantly reduces this distance. CONCLUSION: The distance between the colon and assumed PCNL trajectory at a puncture on the posterior axillary line was influenced mainly by patient position. In FFMS position the colon appears to be farther than in prone position. BMI and age significantly influence this distance to a lesser extent.


Assuntos
Colo/diagnóstico por imagem , Cálculos Renais/cirurgia , Rim/diagnóstico por imagem , Nefrolitotomia Percutânea , Posicionamento do Paciente , Adulto , Fatores Etários , Índice de Massa Corporal , Feminino , Humanos , Masculino , Decúbito Ventral , Estudos Prospectivos , Punções , Fatores Sexuais , Decúbito Dorsal , Tomografia Computadorizada por Raios X
2.
Arab J Urol ; 15(3): 194-198, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29071151

RESUMO

OBJECTIVES: To evaluate the possible role of silodosin (a highly selective α1A-adrenoceptor antagonist) in facilitating the passage of distal ureteric stones (DUS) in children, as the role of α-blockers as medical expulsive therapy is well known in adults. PATIENTS AND METHODS: In all, 40 paediatric patients (27 boys and 13 girls) diagnosed with unilateral, single, radiopaque DUS of <10 mm were included in the study. Their mean (SD, range) age was 8.1 (2.7, 5-17) years. The patients were randomly divided into two groups: Group A, received silodosin 4 mg as a single bedtime dose; and Group B, received placebo as a single bedtime dose. Ibuprofen was prescribed to both groups on-demand for pain episode relief. Patients were followed up biweekly for 4 weeks. The stone expulsion time and rate, pain episodes, analgesic use, and any adverse effects were recorded. RESULTS: The mean (SD) stone size in Group A was 6.6 (1.7) mm and in Group B was 6.7 (1.4) mm (P = 0.4). Two patients were lost to follow-up (one from each group), and one patient in Group A refused to complete the study. The stone-free rate at end of the 4-week treatment period was 88.8% in Group A vs 73.6% in Group B (P = 0.4). The mean (SD) stone expulsion time was 7.0 (4.3) vs 10.4 (4.7) days in groups A and B, respectively (P = 0.02). The mean (SD) number of pain episodes requiring ibuprofen was 2.3 (1.4) vs 4.7 (2.6) episodes in groups A and B, respectively (P < 0.001). Adverse effects (headache and dizziness) were recorded in three patients (16.7%) in Group A, which were mild and none of them discontinued treatment, whilst no adverse effects were recorded in Group B. CONCLUSIONS: The data in the present study show that silodosin can be safely used in the treatment of DUS in children for decreasing time to stone expulsion, pain episodes, and analgesic requirement.

3.
Arab J Urol ; 14(2): 131-5, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27489740

RESUMO

OBJECTIVE: To compare the safety, efficacy and complications of single vs multiple instillations of povidone iodine (PI) and urographin as a sclerosing agent in the treatment of chyluria. PATIENTS AND METHODS: The study included 58 patients diagnosed with chyluria between March 2006 and January 2013. The inclusion criteria were either severe attacks of chyluria or patients with mild-to-moderate chyluria who had failed conservative treatment. The patients were randomly allocated to one of two groups: those in Group A had a single instillation of a combination of PI 0.2% plus the contrast-agent urographin 76%, while those in Group B had multiple instillations of the same combination twice daily for 3 successive days. RESULTS: The mean (SD) age of the patients in Groups A and B was 38.22 (10.67) and 37.9 (10.86) years, respectively. Chyluria was severe in eight patients (14.8%), moderate in 25 (46.3%) and mild in 21 (38.9%). The success rate in Group A (single instillation) was 85.2% and in Group B (multiple instillation) was 88.9%. The recurrence rate in Group A was 14.8% with a disease-free duration (DFD) of 4-15 weeks, while in group B it was 11.1% with a DFD of 6-18 weeks. CONCLUSION: There was no significant difference between a single instillation of a combination of PI 0.2% and urographin 76% as a sclerosing agent in the treatment of chyluria and multiple instillations. However, the single instillation protocol is more cost effective with a shorter hospital stay.

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