Racial disparities in the rate of cardiotoxicity of HER2-targeted therapies among women with early breast cancer.

BACKGROUND: Human epidermal growth factor receptor 2 (HER2)-targeted therapies are highly effective at preventing breast cancer recurrence but are associated with cardiotoxicity in some patients, and minimal data are available regarding racial disparities in the incidence of this toxicity. The authors conducted a retrospective study to analyze the association of black or white race with treatment-induced cardiotoxicity and incomplete therapy among patients with HER2-positive early breast cancer. METHODS: Women with HER2-positive, stage I through III breast cancer who initiated (neo)adjuvant HER2-targeted therapy (trastuzumab with or without pertuzumab) from January 2005 to March 2015 at the authors' institution were eligible. We analyzed differences in the incidence of cardiotoxicity (a decline in the left ventricular ejection fraction to <50% AND an absolute drop in the left ventricular ejection fraction of ≥10% from baseline) and incomplete therapy (<52 weeks of HER2-targeted therapy) between black and white women in univariate and multivariable analyses. RESULTS: The authors identified 59 black patients and 157 white patients who had a median follow-up 5.2 years. The median patient age was 53 years and was similar for black and white patients. The 1-year cardiotoxicity incidence was 12% overall (95% confidence interval [CI], 7%-16%), 24% in black women (95% CI, 12%-34%), and 7% in white women (95% CI, 3%-11%). Black patients had a significantly greater probability of incomplete therapy compared with white patients (odds ratio, 4.61; 95% CI, 1.70-13.07; P = .002). High correlation was observed between a cardiotoxicity event and incomplete therapy (96% concordance). CONCLUSIONS: Black patients have a higher rate of cardiotoxicity and resultant incomplete adjuvant HER2-targeted therapy than white patients. This patient population may benefit from enhanced cardiac surveillance, cardioprotective strategies, and early referral to cardiology when appropriate. Cancer 2018;124:1904-11. © 2018 American Cancer Society.

The Integration of Adult Acute Care Surgeons into Pediatric Surgical Care Models Supplements the Workforce without Compromising Quality of Care.

Acute care of children remains a challenge due to a shortage of pediatric surgeons, particularly in rural areas. In our institutional norm, all cases in patients age six and older are managed by dedicated general surgeons. The provision of care to these children by these surgeons alleviates the impact of such shortages. We conducted a five-year retrospective analysis of all acute care pediatric surgical cases performed in patients aged 6 to 17 years by a dedicated group of adult general surgeons in a rural tertiary care hospital. Demographics, procedure, complications, outcomes, length of stay, and time of consultation/operation were obtained via chart review. Elective, trauma related, or procedures performed by a pediatric surgeon were excluded. Descriptive statistics are reported. A total of 397 cases were performed by six dedicated general surgeons during the study period. Mean age was 11.5 ± 3.1 years. In all, 100 (25.2%) were transferred from outlying facilities and 52.6 per cent of consultations/operations occurred at night (7P-7A), of which 33.2 per cent occurred during late night hours (11P-7A). On weekends, 34.0 per cent occurred. Appendectomy was the most commonly performed operation (n = 357,89.9%), of which 311 were laparoscopic (87.1%). Others included incision/drainage (4.5%), laparoscopic cholecystectomy (2.0%), bowel resection (1.5%), incarcerated hernia (0.5%), small bowel obstruction (0.5%), intra-abdominal abscess drainage (0.3%), resection of intussusception (0.3%), Graham patch (0.3%), and resection omental torsion (0.3%). Median length of stay was two days. Complications occurred in 23 patients (5.8%), of which 22(5.5%) were the result of the disease process. These results parallel those published by pediatric surgeons in this age group and for the diagnoses treated. Models integrating dedicated general surgeons into pediatric call rotations can be designed such that quality of pediatric care is maintained while providing relief to an overburdened pediatric surgical workforce.