imaging of the kidneys and urinary tract has a significant and critical role for diagnosis of genitourinary system diseases. although technological progress goes toward less invasive approaches, some of the current methods are still invasive and annoying. voiding cystourethrography (vcug) is the best and most accurate method for diagnosis and grading of vesicoureteral refl ux. vcug is a distres...

BACKGROUND Multiple studies document the beneficial effect of midazolam on preoperative anxiety in children. Many clinicians report, however, that some children may in fact not benefit from the administration of this drug. METHODS After screening for relevant exclusion criteria, children undergoing surgery were enrolled in the study (n = 262) and received 0.5 mg/kg oral midazolam at 20-40 min...

PURPOSE The purpose of this study was to compare midazolam alone (Group A: 1 mg/kg) vs midazolam plus meperidine (Group B: 0.5 and 1 mg/kg, respectively) in regard to physiology and behavior of young children sedated for dental restorative care. METHODS Twenty healthy children who met selection criteria were randomly assigned to 1 of 2 groups and subsequently treated in a prospective, crossov...

Daily rhythms in physiology may affect the pharmacokinetics of a drug. The aim of this study was to evaluate 24-hour variation in the pharmacokinetics of the CYP3A substrate midazolam. Oral (2 mg) and intravenous (1 mg) midazolam was administered at six timepoints throughout the 24-hour period in 12 healthy volunteers. Oral bioavailability (population mean value [RSE%] of 0.28 (7.1%)) showed 24...

To estimate the influence of repeated administration of drug metabolism inhibitors on the extent of drug interaction, we investigated the effects of single intravenous or repeated oral administration of itraconazole on the pharmacokinetics of midazolam in rats. In the single administration study, the plasma concentration of itraconazole was maintained by intravenous infusion, and midazolam was ...

BACKGROUND Among different categories of sedative agents, benzodiazepines have been prescribed for more than three decades to patients of all ages. The effective and predictable sedative and amnestic effects of benzodiazepines support their use in pediatric patients. Midazolam is one of the most extensively used benzodiazepines in this age group. Oral form of drug is the best accepted route of ...

Objective: Long term use of opioids and benzodiazepines are associated with important untoward effects. The α2 adrenergic agonist clonidine has sedative effects. Our goal was to study clonidine addition to total doses of fentanyl and midazolam and duration of ventilation in pediatric ICU (PICU). Methods: This randomized, double-blind, placebo-controlled trial was conducted in PICU of Mofi...

BACKGROUND This randomized, double-blind study tested the hypothesis that, in comparison with midazolam, premedication with oral clonidine reduces the incidence of emergence agitation in preschool children anaesthetized with sevoflurane. METHODS Sixty-eight ASA I-II children undergoing circumcision were randomized into three groups to receive different oral premedication given 30 min before a...

Tenapanor (RDX5791, AZD1722) is an inhibitor of sodium/hydrogen exchanger isoform 3 in development for the treatment of constipation-predominant irritable bowel syndrome and the treatment of hyperphosphatemia in patients with chronic kidney disease on dialysis. We aimed to investigate whether tenapanor inhibits or induces cytochrome P450s (CYPs). In vitro experiments assessing the potential of ...

BACKGROUND Oral midazolam is widely used for preoperative sedation in children. We have studied the pharmacokinetics (PK) of both midazolam and its active 1-hydroxy metabolite and their contributions to sedative effect in 45 children attending for day surgery. METHODS Blood samples (two per individual) were collected at the beginning and end of the surgical procedure. Plasma midazolam and 1-h...