ABSTRACT
AIM: Both patent ductus arteriosus (PDA) and packed red blood cell (PRBC) transfusion are risk factors for necrotizing enterocolitis (NEC). The combination of PDA and PRBC transfusion may have a synergistic effect on the intestinal circulation. METHODS: We present four cases of NEC in very low birth weight (VLBW) infants within 14 h after PRBC transfusion. RESULTS: All infants were growing on full enteral feeding, and they all had a PDA. CONCLUSION: We are concerned that the simultaneous presence of a PDA and PRBC transfusion in VLBW infants may place the infant at even greater risk of NEC than each of these factors alone.
Subject(s)
Ductus Arteriosus, Patent/complications , Enterocolitis, Necrotizing/etiology , Erythrocyte Transfusion/adverse effects , Infant, Premature, Diseases/etiology , Fatal Outcome , Female , Humans , Infant, Newborn , Infant, Premature , Infant, Very Low Birth Weight , MaleABSTRACT
OBJECTIVE: To investigate why not all children with monosymptomatic nocturnal enuresis (MNE) treated with desmopressin give an adequate response. MATERIALS AND METHODS: We included 114 children with MNE aged 5-15 years (9.8 ± 0.2 years) who experienced at least 1 wet night and more than 2 dry nights during desmopressin treatment. The patients made home recordings for 2 weeks as baseline and for 2-4 weeks of desmopressin titration. Nocturnal urine production during wet and dry nights, and maximum voided volumes (MVVs) were documented in all patients. RESULTS: Sixty-four patients were desmopressin non-responders, 29 were either partial responders or responders, while 21 patients were full responders. Desmopressin reduced nocturnal urine production dramatically during dry nights compared with pre-treatment wet nights. Nocturnal urine production during desmopressin treatment was significantly greater during wet nights compared to dry nights (243 ± 9.32 vs 176 ± 5.31 ml, P < 0.001). There was a highly significant correlation between individual nocturnal urine output and MVV, and dry nights were characterized by nocturnal urine output/MVV ratios well below 1.0. CONCLUSION: The anti-enuretic response to desmopressin seems to be dependent upon the degree of reduction in nocturnal urine production. Research on desmopressin bioavailability in children is needed.
Subject(s)
Circadian Rhythm , Deamino Arginine Vasopressin/therapeutic use , Drug Tolerance , Nocturnal Enuresis/drug therapy , Urination/drug effects , Adolescent , Antidiuretic Agents/administration & dosage , Antidiuretic Agents/pharmacokinetics , Antidiuretic Agents/therapeutic use , Biological Availability , Child , Child, Preschool , Deamino Arginine Vasopressin/administration & dosage , Deamino Arginine Vasopressin/pharmacokinetics , Female , Follow-Up Studies , Humans , Male , Nocturnal Enuresis/physiopathology , Retrospective Studies , Treatment OutcomeABSTRACT
PURPOSE: We evaluated bladder reservoir function in children with monosymptomatic nocturnal enuresis with and without response to desmopressin, and assessed the importance of first morning voiding when defining maximum voided volume. MATERIALS AND METHODS: A total of 238 patients 5 to 15 years old with monosymptomatic nocturnal enuresis completed 2 weeks of enuresis recordings and 4 days of frequency-volume charts. Of the patients 186 completed subsequent home recordings during titration with desmopressin. Maximum voided volumes with and without the first morning void were calculated. Desmopressin response was defined as greater than 50% reduction in wet nights. Maximum voided volume with and without first morning voiding was evaluated as a prognostic factor for desmopressin response. RESULTS: Mean ± SD maximum voided volume without first morning void was comparable between desmopressin responders and nonresponders (230.5 ± 69.3 ml and 219.0 ± 84.8 ml, respectively, p = 0.391). Inclusion of the first morning void demonstrated responders to have significantly larger values than nonresponders (mean ± SD 296.0 ± 94.0 ml vs 233.5 ± 90.0 ml, p <0.001). When first morning void was included, desmopressin response was seen in 40% of patients with voided volumes of 65% expected volume for age vs 10% of patients with volumes less than 65% expected volume for age. CONCLUSIONS: Maximum voided volume can be used as a predictor of desmopressin response only if first morning voids are taken into consideration. All patients with monosymptomatic nocturnal enuresis should receive clear instructions to include this measure when completing frequency-volume charts.
