It has been reported that gentamicin causes natriuresis, magnesuria and calciuria in neonates. The aim of this study was to determine the acute effects of trough and peak levels of gentamicin on the values of serum creatinine (SCr), urine albumin/urine creatinine (UA/UCr), fractional excretion of sodium and potassium (FENa, FEK) and urine calcium/urine creatinine (UCa/UCr) in preterm neonates treated with gentamicin for suspected infection. Baseline levels of serum and urine Cr, Na and K and urine albumin and Ca levels together with trough and peak gentamicin levels were measured in 61 preterm neonates at the start of the therapy, on the day of the third gentamicin dose and 48-72 h after the cessation of the gentamicin therapy. Therapeutic trough and peak levels were recorded in 56 (91.8%) and 39 (63.9%) of the preterm neonates, respectively, whereas high trough (>2 mg/dl) and peak (>9.99 mg/dl) levels were recorded in five (8.1%) and 11 (18%) of the 61 preterm neonates, respectively. Trough and peak levels of gentamicin were positively correlated with SCr, UA/UCr, FENa, FEK and UCa/UCr values. The UA/UCr, FENa and UCa/UCr values recorded during treatment were statistically significantly different from sub-therapeutic, therapeutic and high peak gentamicin levels. Gentamicin was found to have a serum peak level-dependent microalbuminuric, natriuric and calciuric effect in preterm neonates. Based on these results, we suggest that when the monitoring of serum gentamicin levels is not possible, the monitoring of UA/UCr, FENa and UCa/UCr can be useful as a noninvasive alternative.
In our country, tricyclic antidepressants are usually present in most of the homes. Myocardial depression and ventricular arrhythmia are the severe side effects in tricyclic antidepressant overdose. A 4-year-old boy was brought to our hospital after taking 70 mg/kg of amitriptyline. On arrival, the patient was comatose (Glasgow Coma Score was 3), had a shallow breathing pattern with bradycardia (HR <30/min), and hypotension. He was intubated and resuscitated with multiple doses of adrenaline and sodium bicarbonate. He was infused with a bolus of 20 mg/kg of normal saline for hypotension. After 30 minutes, ventricular fibrillation was detected. Lidocaine and bicarbonate were not effective in converting the rhythm to normal, therefore, synchronized cardioversion was used. After cardioversion, the rhythm converted to ventricular tachycardia. Because ventricular tachycardia did not resolve, we administered a load of less than 2 g of magnesium sulfate for 30 minutes followed by a continuous infusion of 3 mg/min. After magnesium sulfate infusion, a normal cardiac rhythm was achieved. Magnesium sulfate is a very effective treatment in intractable arrhythmias caused by high-dose amitriptyline intoxication.
Bronchogenic cyst (BC), which develops from abnormal budding of the tracheal diverticulum or ventral foregut, is a congenital bronchopulmonary malformation. Localization of the BC varies depending on the level of the abnormal budding. Thoracic or abdominal-sited diaphragmatic lesions are the rarest presentations of the BC. We present a case of BC that originated from the diaphragm and mimicking hydatid cyst of the liver in a 19-month-old girl. Diagnosis of a diaphragmatic lesion was confirmed during laparotomy and complete resection was successful.
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