Immunization of newborns with bacterial conjugate vaccines

Bacterial conjugate vaccines are based on the principle of coupling immunogenic bacterial capsular polysaccharides to a carrier protein to facilitate the induction of memory T-cell responses. Following the success of Haemophilus influenzae type b conjugate vaccines in the 1980s, conjugate vaccines for Streptococcus pneumoniae and Neisseria meningitidis infections were developed and proven to be effective in protecting children against invasive disease. In this review, the use of conjugate vaccines in human newborns is discussed. Neonatal Haemophilus influenzae type b and pneumococcal conjugate vaccination schedules have been trialed and proven to be safe, with the majority of studies demonstrating no evidence for the induction of immune tolerance. Whether their neonatal administration also results in an earlier induction of clinical protection in the first 2–3 critical months of life is still to be demonstrated.     

Post-radiation tracheoesophageal fistula following salvage laryngectomy: microsurgical repair using a “bi-laminar” lateral arm flap

Post-radiotherapy tracheoesophageal fistula (TOF) is a serious complication following salvage laryngectomy, associated with severe morbidity and high mortality. In the absence of recurrent disease, they commonly follow creation of a tracheoesophageal puncture for speech rehabilitation after total laryngectomy. Frequently, direct closure, local and regional flaps repairs are unsuccessful, further making the bed hostile or challenging for definitive treatment. We report using a free fasciocutaneous lateral arm flap, folded to create a bi-laminar (epithelial) reconstruction for salvage repair of large, high output persistent TOF initiated by tracheoesophageal puncture following total laryngectomy, two previous courses of radiotherapy and two unsuccessful repairs using small local flap and a pedicled pectoralis major. The folded lateral arm free flap provided resolution of the fistula, interposition of well-vascularised soft tissue, in addition to oesophageal lining and external tension-free cutaneous coverage, while maintaining a patent endotracheostomy. Chronic high output fistulas present extremely high risk and post-operative complications and necessitate complex reconstruction. Careful surgical planning, multidisciplinary approach and conservative measures to optimise the patient are paramount to achieve success. Microsurgical reconstruction provides an alternate and important adjunct in salvage repair of persistent and large TOFs. Level of Evidence: Level V, therapeutic study.     

Perceived Benefits and Challenges of Interprofessional Education Based on a Multidisciplinary Faculty Member Survey

Objective: To identify differences among faculty members in various health professional training programs in perceived benefits and challenges of implementing interprofessional education (IPE).Methods: A 19-item survey using a 5-point Likert scale was administered to faculty members across different health disciplines at a west coast, multicollege university with osteopathic medicine, pharmacy, and physician assistant programs.Results: Sixty-two of 103 surveys (60.2%) were included in the study. Faculty members generally agreed that there were benefits of IPE on patient outcomes and that implementing IPE was feasible. However, group differences existed in belief that IPE improves care efficiency (p=0.001) and promotes team-based learning (p=0.001). Program divergence was also seen in frequency of stressing importance of IPE (p=0.009), preference for more IPE opportunities (p=0.041), and support (p=0.002) within respective college for IPE.Conclusions: Despite consensus among faculty members from 3 disciplines that IPE is invaluable to their curricula and training of health care students, important program level differences existed that would likely need to be addressed in advance IPE initiatives.     

Serum placental growth factor as a predictor of early onset preeclampsia in overweight/obese pregnant women

The purpose of this study was to analyze whether maternal serum placental growth factor (PlGF) could predict early onset preeclampsia (<32 weeks of gestation) in overweight/obese pregnant women, and whether it could do it more effectively than in normal/underweight pregnant women. A prospective cohort study was conducted on 1678 pregnant women with singleton pregnancies, who were grouped as underweight, normal, overweight, and obese on the basis of body mass index, followed by serum PlGF estimation at 20 to 22 weeks of gestation. A cut-off value of <144 pg/mL for PlGF was determined by Receiver Operating Characteristic curve analysis to identify risk of early onset preeclampsia. Univariate logistic regression analysis revealed significantly stronger association between PlGF <144 pg/mL and early onset preeclampsia in overweight/obese pregnant women (odds ratio 7.64; 95% confidence interval 5.34–10.12; P = .000) than in normal/underweight pregnant women (odds ratio 2.95; 95% confidence interval 1.74–4.26; P = .007). Weight and PlGF levels in study women had a significant negative correlation (r = 0.663; P = .002). Serum PlGF in early second trimester could be an effective predictor of early onset preeclampsia in overweight/obese pregnant women and may be more effective than in normal/underweight pregnant women.