The aim of our study was to evaluate the role of preoperative magnetic resonance imaging (MRI) in determining occult invasive presence and disease extent in patients with preoperative diagnosis of pure DCIS. We analyzed 125 patients with postoperative pure DCIS (n=91) and DCIS plus invasive

component (n=34). Diagnostic mammography (MRX) showed Napabucasin a size underestimation rate of 30.4% while MRI showed an overestimation rate of 28.6%. Comparing the mean absolute error between preoperative MRI and MRX evaluations and final disease extent, MRI showed an improved accuracy of 51.2%. In our analysis preoperative breast MRI showed a better accuracy in predicting postoperative pathologic extent of disease, adding strength

to the growing evidences that preoperative MRI can lead to a more appropriate management of DCIS patients.”
“Aims\n\nTo describe 4-year treatment retention and treatment response among chronic, treatment-resistant heroin-dependent patients offered long-term heroin-assisted treatment (HAT) in the Netherlands.\n\nDesign\n\nObservational cohort study.\n\nSetting and intervention\n\nOut-patient treatment in specialized heroin treatment NCT-501 Metabolism inhibitor centres in six cities in the Netherlands, with methadone plus injectable or inhalable heroin offered 7 days per week, three times per day. Prescription of methadone plus heroin was supplemented with individually tailored psychosocial and medical support.\n\nParticipants\n\nHeroin-dependent patients who had responded positively to HAT in two randomized controlled trials and were eligible for long-term heroin-assisted treatment (n = 149).\n\nMeasurements\n\nPrimary outcome measures were treatment retention after 4 years and treatment response

on a dichotomous, multi-domain response index, comprising physical, mental and social health and illicit substance use.\n\nFindings\n\nFour-year retention was 55.7% [95% confidence interval (CI): 47.6-63.8%].\n\nTreatment\n\nResponse was significantly better for patients continuing 4 years of HAT compared to patients who discontinued treatment: 90.4% versus 21.2% [difference 69.2%; odds ratio (OR) = 48.4, 95% CI: 17.6-159.1]. Continued HAT treatment was also associated with an increasing AZD4547 supplier proportion of patients without health problems and who had stopped illicit drug and excessive alcohol use: from 12% after the first year to 25% after 4 years of HAT.\n\nConclusions\n\nLong-term HAT is an effective treatment for chronic heroin addicts who have failed to benefit from methadone maintenance treatment. Four years of HAT is associated with stable physical, mental and social health and with absence of illicit heroin use and substantial reductions in cocaine use. HAT should be continued as long as there is no compelling reason to stop treatment.”
“The transport and capture of therapeutic magnetic nanoparticles in human microvasculature is studied numerically.