Objective:To evaluate the incidence of nosocomial infection (NI) in pediatric patients who received cardiothoracic surgery and to identify possible associated risk factors.Design:Prospective observational study.Setting:The cardiac surgery and cardiac intensive care units at the Regina Margherita Children's Hospital, Turin, Italy.Patients:All patients who underwent surgery from July 20,1998, to July 19,1999, were enrolled, except patients with operative catheterization only.Methods:Clinical data were collected daily from July 20, 1998, to July 19, 1999. NIs were diagnosed according to US Centers for Disease Control and Prevention criteria.Results:104 patients were included in the present study, 80 (76.9%) of whom underwent extracorporeal circulation. The NI ratio was 48.1% (50/104); the percentage of patients with NI was 30.8% (32/104): 23.1% developed one infection, 7.7% two or more. The rate of NI was 2.17 per 100 days of hospitalization (50/2,304). The most common pathogen wasPseudomonas aeruginosa,Important risk factors were length of preoperative admission >5 days, total length of admission >10 days, open chest during postoperative phase, and cyanotic heart disease. There was a significant association between sepsis and central venous catheterization for 3 days or more. Rate of sepsis was 19 per 1,000 catheter days (16/852).Conclusion:NIs represent a frequent complication for children who undergo heart surgery. Based on our data, we suggest decreasing the preoperative stay as much as possible. The higher NI incidence in patients with an open chest postoperatively suggests that an alternative antibiotic strategy should be considered for these patients.
We sought to evaluate the utility and safety of CoSeal Surgical Sealant (Baxter) for the prevention of cardiac adhesions in children. Seven cardiac surgery centers in Europe recruited consecutive pediatric patients requiring primary sternotomy for staged repair of congenital heart defects. Exclusion criteria included immune system disorder, unplanned reoperation, or reoperation within three months of primary repair. CoSeal was sprayed onto the surface of the heart at the end of surgery. Evaluation of adhesions took place at first reoperation. Data on safety, duration of surgery, and ease of CoSeal use were also collected. Seventy-nine pediatric patients were recruited between February 2005 and September 2007. Of these, 76 underwent major surgery to repair a wide range of congenital heart defects. Thirty-six patients underwent reoperation >3 months after primary repair, and were included in the efficacy analysis. Mean adhesions score was 8.3 (standard deviation [S.D.] 2.4; range 7-16). Six adverse events (5 serious) were possibly/definitely attributed to CoSeal. CoSeal's ease of use at primary operation was graded by surgeons as 12.1 mm (S.D. 9.8) on a visual analog scale of 0 ('very easy') to 100 mm ('very difficult'). Results of this prospective uncontrolled trial justify further investigation in a randomized, controlled trial.
Previous studies have reported erythrocyte macrocytosis in adults and children with Down syndrome (DS), the significance of which remains unclear. We compared hematological parameters of 50 DS children aged 2 to 15 years, divided into three age groups, with those of 68 aged-matched healthy children. Patients with DS had a significantly increased mean corpuscular volume (MCV) and hemoglobin in all groups when compared with the controls. Erythrocyte creatine content, hexokinase (Hk) activity, erythrocyte and serum folates, vitamin B12, haptoglobin, serum iron, and ferritin were tested. All of these parameters were not significantly different from those of the control group. We conclude that macrocytosis may not be an expression of reduced red cell survival but rather of an altered folate remethylation pathway, secondary to enhanced cystathionine beta-synthase (CBS) activity, the gene for which is present on chromosome 21.
Liver stiffness increases rapidly after total cavopulmonary connection and perioperative variations in some liver enzymes appear to correlate with this change. Since a true anatomical damage is known to develop gradually with Fontan circulation, early liver stiffness raise is likely due to parenchymal congestion only. Fibro-Scan can easily recognize and assess the entity of such a change. For these reasons, this diagnostic tool must be considered useful only to monitor liver stiffness changes and evolution with time, but a conventional evaluation of results, like in other acquired hepatic fibrosis, can be misleading.
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