The prevalence of UTI with ESBL (+) bacterial strains with multi-drug resistance is increasing in the hospitalized pediatric population, therefore rational use of antibiotics is essential.

Hyponatremia is one of the most common electrolyte abnormalities encountered in the clinical setting in hospitalized patients. The syndrome of inappropriate antidiuretic hormone secretion (SIADH) is the leading cause of hyponatremia in most of these cases. While fluid restriction, hypertonic saline infusion, diuretics, and the treatment of underlying conditions constitute the first line of treatment of SIADH, in refractory cases, and especially for pediatric patients, there seems not to be any other choice for treatment. Tolvaptan, although its use in pediatric patients is still very limited, might be an attractive treatment option for correction of hyponatremia due to SIADH. Here we present a pediatric case of SIADH that was resistant to treatment with fluid restriction and hypertonic saline infusion and was treated successfully with tolvaptan. Tolvaptan could be a good, safe, and effective treatment option in pediatric SIADH cases that are resistant to treatment. However, the dosage should be titrated carefully.

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Hemophagocytic lymphohistiocytosis (HLH) is a fatal, hyper-inflammatory syndrome that is characterized by untimely activation of macrophages, and manifests as cytopenia, organ dysfunction, and coagulopathy. Secondary HLH can be associated with infection, drugs, malignancy, and transplantation, and is mostly triggered by infection. Herein, we report the case of a patient with Henoch-Schönlein purpura (HSP) who developed severe HLH secondary to Varicella zoster infection.

Although conventional echocardiography revealed no difference between patients with type 1 DM and healthy children, TDE showed dysfunctions of both ventricles. This state is closely related to degree of blood glucose level control. These findings signify diagnostic value of TDE in the early detection of cardiac effects among patients with type 1 DM.

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The term nutcracker syndrome (NS) refers to the compression of left renal vein between the aorta and the superior mesenteric artery (SMA) causing renal venous hypertension. The symptoms vary from asymptomatic hematuria to severe pelvic congestion. The purpose of this study is to evaluate the clinical characteristics of patients with NS and the correlation between clinical and laboratory findings with Doppler sonographic measurements. Sixty-three patients were evaluated (19 boys and 44 girls) since January 2004 to January 2014. The mean age of the patients was 12.21 ± 3.21 years (range 7-17). Hematuria and proteinuria disappeared during the follow up of 9/63 patients. These nine patients showed statistically significant difference in upright SMA angles (p= 0.035). Doppler sonographic evaluation is a non-invasive method for diagnosis NS. Upright SMA angle measurement is more efficient than supine SMA angle measurement on clinicoradiological correlation.