Suboptimal Serum Vitamin D Associated with Early Childhood Caries in Special Health Care Needs Children.

Purpose: To investigate the association between suboptimal serum vitamin D and early childhood caries (ECC) among children who received care at Seattle Children's Hospital (SCH) between 1999 and 2014.Methods: This cross-sectional study examined one- to six-year-old children in their primary dentition, with an American Society of Anesthesiologists (ASA) health status of II to IV, serum vitamin D, and dental data. Serum vitamin D was categorized as optimal (at least 75 nanomoles per liter) or suboptimal (less than 75 nanomoles per liter). Associations between serum vitamin D and caries were assessed using bivariate and multivariable (modified) Poisson regression models. Multivariable models were adjusted for age, race, ASA classification, season of vitamin D collection, and gastrostomy tube (G-tube) feeding status.Results: The mean age of 276 subjects was 3.4±1.5 years; 50.4 percent was female, 48.9 percent was Caucasian, 81.5 percent was ASA III status, 36.2 percent was G-tube fed, and 33.3 percent had ECC. Children with suboptimal 25-hydroxy vitamin D status were twice as likely to have ECC than children with optimal levels (relative risk = 2.14; 95 percent confidence interval = 1.45 to 3.16). The association between serum vitamin D and ECC was observed among children with neurologic (P<0.001) and genetic (P<0.001) conditions.Conclusions: Suboptimal 25-hydroxy vitamin D status was associated with increased risk for ECC in children with special health care needs. Interventions beyond the realm of the mouth are relevant for this highly vulnerable population and awareness of their vitamin D status should be considered.

Retrospective investigation of the effects and efficiency of self-ligating and conventional brackets.

INTRODUCTION: The purpose of this retrospective cohort study was to assess the effects and efficiency of self-ligating brackets compared with conventional brackets. A secondary purpose was to identify the pretreatment factors associated with the choice of self-ligating or conventional brackets. METHODS: The subjects were treated by 2 private practitioners who used both self-ligating and conventional brackets in their practices. The self-ligating subjects were consecutively identified (treatment completed between January 2011 and April 2012), and then an age- and sex-matched control group was chosen from the same office. The outcome measures were changes in arch dimensions, changes in mandibular incisor inclinations, final peer assessment rating (PAR) scores, percentages of PAR reduction, overall treatment times, total number of visits, and number of emergency visits. All cast and cephalometric measurements were performed on digital records in a blinded manner. Two calibrated assessors measured the PAR scores. RESULTS: The final sample comprised 74 patients from clinician 1 and 34 patients from clinician 2. The practitioners had significant differences for several treatment parameters; therefore, the data from the 2 clinicians were analyzed separately. For clinician 1, no significant differences were observed between the self-ligating and conventional groups, other than increased arch length in the self-ligating group. The self-ligation patients treated by clinician 2 demonstrated significant increases in transverse dimensions, lower percentages of reduction in PAR scores, shorter treatment times, fewer visits, and more wire-sliding emergencies than the conventional bracket group. CONCLUSIONS: Although some significant findings were observed, the small sample and the lack of consistent findings between the 2 clinicians made it difficult to draw strong conclusions.

Risk factors for peripherally inserted central venous catheter complications in children.

IMPORTANCE: Peripherally inserted central venous catheters (PICCs) are prone to infectious, thrombotic, and mechanical complications. These complications are associated with morbidity, so data are needed to inform quality improvement efforts. OBJECTIVES: To characterize the epidemiology of and to identify risk factors for complications necessitating removal of PICCs in children. DESIGN: Cohort study. SETTING: Johns Hopkins Children's Center, Baltimore, Maryland. PARTICIPANTS: Hospitalized children who had a PICC inserted outside of the neonatal intensive care unit (ICU) from January 1, 2003, through December 31, 2009. MAIN OUTCOME MEASURES: Complications necessitating PICC removal as recorded by the PICC Team. RESULTS: During the study period, 2574 PICCs were placed in 1807 children. Complications necessitating catheter removal occurred in 534 PICCs (20.8%) during 46 021 catheter-days (11.6 complications per 1000 catheter-days). These included accidental dislodgement (4.6%), infection (4.3%), occlusion (3.7%), local infiltration (3.0%), leakage (1.5%), breakage (1.4%), phlebitis (1.2%), and thrombosis (0.5%). From 2003 to 2009, complications decreased by 15% per year (incidence rate ratio [IRR], 0.85; 95% CI, 0.81-0.89). In adjusted analysis, all noncentral PICC tip locations-midline (IRR 4.59, 95% CI, 3.69-5.69), midclavicular (2.15; 1.54-2.98), and other (3.26; 1.72-6.15)-compared with central tip location were associated with an increased risk of complications. Pediatric ICU exposure and age younger than 1 year were independently associated with complications necessitating PICC removal. CONCLUSIONS AND RELEVANCE: Noncentral PICC tip locations, younger age, and pediatric ICU exposure were independent risk factors for complications necessitating PICC removal. Despite reductions in PICC complications, further efforts are needed to prevent PICC-associated complications in children.