Early Morbidity and Perioperative Course of Neonates with Esophageal Atresia and Tracheoesophageal Fistula in a Tertiary Pediatric Surgical Center

Background: The management of infants (infs.) with esophageal atresia and tracheoesophageal fistula (EA ± TEF) is demanding and complex. The aim of this study was to evaluate early morbidity, the timing of surgery, and the results of surgery. Patients and Method: We collected data of 30 consecutive infs. treated for EA ± TEF between 2006 and 2014. Results: The median gestational age was 38 weeks (12 preterm), and the median Birth Weight (BW) was 2660 g (4 infs. had a BW 1500 g). The median Apgar score at 10 minutes was 10 (range 7 - 10). The median umbilical artery pH (UapH) was 7.30. According to the Spitz classification, 19 infs. were group 1, 9 infs. were group 2, and 2 infs. were group 3. Surgical repair was performed in 29 cases (25 EA;4 isolated TEF). Once the infs. arrived at the pediatric surgery department, surgery was postponed overnight in 11 cases. The duration of postoperative (p.o.) mechanical ventilation was significantly shorter for operations performed on day 2 after delivery. Twenty-four infs. (83%) underwent surgery within 2 days after delivery, and 5 infs. had later surgery. Chest drains (p.o.) for pneumothorax were inserted in 6 infs. (21%), and gastrostomy was performed in 6 cases (21%). No re-thoracotomy was required. The median length of hospital stay was 17.5 days (6 to 120). The incidence of p.o. mortality was 1 in 29 (3%). Discussion: The majority of the infs. presented growth retardation (indicated by low birth weight) and a stable immediate postnatal course. The data from this study support the concept of early but not emergent surgery for the majority of infs. with EA ± TEF. However, a remarkable rate of perioperative morbidity must be taken into account. Conclusion: Surgery for EA ± TEF can be performed safely during the first postnatal days with exception of very unstable preterm infants.

Pathophysiology of Hypertrophic Pyloric Stenosis Revisited: The Use of Isotonic Fluid for Preoperative Infusion Therapy Is Supported

Background: The aim of this study was to elucidate the preoperative clinical and biochemical profile of infants with IHPS to optimize infusion therapy. Patients and Method: We retrospectively analyzed data from 56 infants who were operated for IHPS. Our study includes growth and laboratory data prior to the initiation of therapy. Results: Median duration of propulsive vomiting was 4 d;the median age was 37 d (18 - 108), and the median body weight was 3840 g (2760 -5900). Metabolic alkalosis (MAlk) with a pH of 7.45 ± 0.06 and an stHCO3- of 28.7 ± 4.5 mmol/l was found. In a subgroup of the infants, negative base excess (BE) was observed. The sodium concentration was normal or reduced (mean/median of 137 mmol/l). There was a strong negative correlation between stHCO3- and K+. The carbon dioxide partial pressure tended to increase (5.72 ± 0.84 kPa). Calculations of osmolality revealed a normal osmolarity. Hypoglycemia did not occur. The creatinine clearance according to the Schwartz formula remained at a normal level (85.3 ± 24.3 ml/min/1.73 m2). Discussion: The presented case series is characterized by a short duration of preoperative vomiting. MAlk can be classified as a chloride deficiency syndrome. It is accompanied by normo- or hyponatremic dehydration with normal osmolality. Partial respiratory compensation occurred. A normal creatinine clearance indicated good glomerular renal function. Conclusion: The presented study supports the use of an isotonic infusion fluid with a low glucose concentration for preoperative infusion therapy.