Postdischarge Pain Management After Thoracic Surgery: A Patient-Centered Approach.

BACKGROUND: Postoperative analgesia is paramount to recovery after thoracic surgery, and opioids play an invaluable role in this process. However, current 1-size-fits-all prescribing practices produce large quantities of unused opioids, thereby increasing the risk of nonmedical use and overdose. This study hypothesized that patient and perioperative characteristics, including 24-hour before-discharge opioid intake, could inform more appropriate postdischarge prescriptions after thoracic surgery. METHODS: This prospective observational cohort study was conducted in 200 adult thoracic surgical patients. The cohort was divided into 3 groups on the basis of 24-hour before-discharge opioid intake in morphine milligram equivalents (MME): (1) no (0 MME), (2) low (>0 to ≤22.5 MME), or (3) high (>22.5 MME) before-discharge opioid intake. Logistic regression was used to analyze the association of patient and perioperative characteristics with self-reported after-discharge opioid use. RESULTS: Univariate analysis showed that preoperative opioid use, 24-hour before-discharge acetaminophen and gabapentinoid intake, and 24-hour before-discharge opioid intake were associated with higher after-discharge opioid use. Multivariable modeling demonstrated that 24-hour before-discharge opioid intake was most significantly associated with after-discharge opioid use. For example, compared with patients who took high amounts of opioids before discharge, patients who took no opioids before discharge were 99% less likely to take a high amount of opioids after discharge compared with taking none (odds ratio, 0.011; 95% confidence interval, 0.003 to 0.047; P < .001). CONCLUSIONS: Assessment of 24-hour before-discharge opioid intake may inform patient requirements after discharge. Opioid prescriptions after thoracic surgery can thereby be targeted on the basis of anticipated needs.

Predicting Opioid Use Following Discharge After Cesarean Delivery.

PURPOSE: Although cesarean delivery is the most common surgical procedure in the United States, postoperative opioid prescribing varies greatly. We hypothesized that patient characteristics, procedural characteristics, or both would be associated with high vs low opioid use after discharge. This information could help individualize prescriptions. METHODS: In this prospective cohort study, we quantified opioid use for 4 weeks following hospital discharge after cesarean delivery. Predischarge characteristics were obtained from health records, and patients self-reported total opioid use postdischarge on weekly questionnaires. Opioid use was quantified in milligram morphine equivalents (MMEs). Binomial and Poisson regression analyses were performed to assess predictors of opioid use after discharge. RESULTS: Of the 233 patients starting the study, 203 (87.1%) completed at least 1 questionnaire and were included in analyses (86.3% completed all 4 questionnaires). A total of 113 patients were high users (>75 MMEs) and 90 patients were low users (≤75 MMEs) of opioids postdischarge. The group reporting low opioid use received on average 44% fewer opioids in the 24 hours before discharge compared with the group reporting high opioid use (mean = 33.0 vs 59.3 MMEs, P <.001). Only a minority of patients (11.4% to 15.8%) stored leftover opioids in a locked location, and just 31 patients disposed of leftover opioids. CONCLUSIONS: Knowledge of predischarge opioid use can be useful as a tool to inform individualized opioid prescriptions, help optimize nonopioid analgesia, and reduce opioid use. Additional studies are needed to evaluate the impact of implementing such measures on prescribing practices, pain, and functional outcomes.

Opioid and non-opioid utilization at home following gastrointestinal procedures: a prospective cohort study.

BACKGROUND: Overprescribing of opioid medications for patients to be used at home after surgery is common. We sought to ascertain important patient and procedural characteristics that are associated with low versus high rates of self-reported utilization of opioids at home, 1-4 weeks after discharge following gastrointestinal surgery. METHODS: We developed a survey consisting of questions from NIH PROMIS tools for pain intensity/interference and queries on postoperative analgesic use. Adult patients completed the survey weekly during the first month after discharge. Using regression procedures we determined the patient and procedure characteristics that predicted high post-discharge opioid use operationalized as 75 mg oral morphine equivalents/50 mg oxycodone reported taken. RESULTS: The survey response rate was 86% (201/233). High opioid use was reported by 52.7% of patients (106/201). Median reported intake of opioid pain pills was 7 for week #1 and 0 for weeks #2-4. Combinations of acetaminophen and non-steroidal and anti-inflammatory drugs were used by 8.9%-12.5% of patients after discharge. Following adjustment for significant variables of the univariate analysis, last 24-h in-hospital opioid intake remained as a significant co-variate for post-discharge opioid intake. CONCLUSIONS: After gastrointestinal surgery, the equivalent of each oxycodone 5 mg tablet taken in the last 24 h before discharge increases the likelihood of taking the equivalent of > 10 oxycodone 5 mg tablets by 5%. Non-opioid analgesia was utilized in less than half of the cases. Maximizing non-opioid analgesic therapy and basing opioid prescriptions on 24-h pre-discharge opioid intake may improve the quality of post-discharge pain management.

Neostigmine Versus Sugammadex for Reversal of Neuromuscular Blockade and Effects on Reintubation for Respiratory Failure or Newly Initiated Noninvasive Ventilation: An Interrupted Time Series Design.

BACKGROUND: Pulmonary complications related to residual neuromuscular blockade lead to morbidity and mortality. Using an interrupted time series design, we tested whether proportions of reintubation for respiratory failure or new noninvasive ventilation were changed after a system-wide transition of the standard reversal agent from neostigmine to sugammadex. METHODS: Adult patients undergoing a procedure with general anesthesia that included pharmacologic reversal of neuromuscular blockade and admission ≥1 night were eligible. Groups were determined by date of surgery: August 15, 2015 to May 10, 2016 (presugammadex), and August 15, 2016 to May 11, 2017 (postsugammadex). The period from May 11, 2016 to August 14, 2016 marked the institutional transition (washout/wash-in) from neostigmine to sugammadex. The primary outcome was defined as a composite of reintubation for respiratory failure or new noninvasive ventilation. Event proportions were parsed into 10-day intervals in each cohort, and trend lines were fitted. Segmented logistic regression models appropriate for an interrupted time series design and adjusting for potential confounders were utilized to evaluate the immediate effect of the implementation of sugammadex and on the difference between preintervention and postintervention slopes of the outcomes. Models containing all parameters (full) and only significant parameters (parsimonious) were fitted and are reported. RESULTS: Of 13,031 screened patients, 7316 patients were included. The composite respiratory outcome occurred in 6.1% of the presugammadex group and 4.2% of the postsugammadex group. Adjusted odds ratio (OR) and 95% confidence intervals (CIs) for the composite respiratory outcome were 0.795 (95% CI, 0.523-1.208) for the immediate effect of intervention, 0.986 (95% CI, 0.959-1.013) for the difference between preintervention and postintervention slopes in the full model, and 0.667 (95% CI, 0.536-0.830) for the immediate effect of the intervention in the parsimonious model. CONCLUSIONS: The system-wide transition of the standard pharmacologic reversal agent from neostigmine to sugammadex was associated with a reduction in the odds of the composite respiratory outcome. This observation is supported by nonsignificant within-group time trends and a significant reduction in intercept/level from presugammadex to postsugammadex in a parsimonious logistic regression model adjusting for covariates.

Testing helping behavior and its relationship to antisocial personality and psychopathic traits.

When presented with decisions that require simultaneously weighing self-benefit and other harm, adolescents with callous-unemotional traits compared with controls engage in less Costly Helping (i.e., giving up a benefit to protect a beneficent other). Young adults completed questionnaires, played an online-administered game of Costly Helping, and viewed an Elevation stimulus video (when witnessing another's act of virtue, individuals may experience a positive or elevating response). Subjects were assigned to one of four study arms, which varied the order of presentation. Higher levels of Factor 1 (callousness) psychopathic trait scale scores (assessed using the Levenson Self-Report Psychopathy Scale) were associated with significantly less Costly Helping. Elevation associated positively with Costly Helping behaviors and negatively with psychopathic traits. Introducing Elevation as an independent variable in regression analyses attenuated the relationship between psychopathic traits and Costly Helping, suggesting mediation. Those viewing the Elevation stimulus video prior to playing the game, as opposed to after, trended toward more Costly Helping by taking less money for themselves ($3.28vs. $3.72). Results support that this simple game provides meaningful behavioral data associated with psychopathic traits. Differences in Elevation may, in part, explain the observed differences in prosocial behavior in those with high psychopathic traits.

Independent predictors of mortality in adolescents ascertained for conduct disorder and substance use problems, their siblings and community controls.

BACKGROUND AND AIMS: Adolescents with conduct and substance use problems are at increased risk for premature mortality, but the extent to which these risk factors reflect family- or individual-level differences and account for shared or unique variance is unknown. This study examined common and independent contributions to mortality hazard in adolescents ascertained for conduct disorder (CD) and substance use disorder (SUD), their siblings and community controls, hypothesizing that individual differences in CD and SUD severity would explain unique variation in mortality risk beyond that due to clinical/control status and demographic factors. DESIGN: Mortality analysis in a prospective study (Genetics of Antisocial Drug Dependence Study) that began in 1993. SETTING: Multi-site sample recruited in San Diego, California and Denver, Colorado, USA. PARTICIPANTS: A total of 1463 clinical probands were recruited through the juvenile correctional system, court-mandated substance abuse treatment programs and correctional schools, along with 1399 of their siblings, and 904 controls. MEASUREMENTS: Mortality and cause-of-death were assessed via National Death Index search (released October, 2017). FINDINGS: There were 104 deaths documented among 3766 (1168 female) adolescents and young adults (average age 16.79 years at assessment, 32.69 years at death/censoring). Mortality hazard for clinical probands and their siblings was 4.99 times greater than that of controls (95% confidence interval = 2.40-10.40; P < 0.001). After accounting for demographic characteristics, site, clinical status, familial dependence and shared contributions of CD and SUD, CD independently predicted mortality hazard, whereas SUD severity did not. CONCLUSIONS: In the United States, youth with conduct and substance use disorders and their siblings face far greater risk of premature death than demographically similar community controls. In contrast to substance use disorder severity, conduct disorder is a robust predictor of unique variance in all-cause mortality hazard beyond other risk factors.

Marijuana Use by Adolescents and Young Adults with Inflammatory Bowel Disease.

OBJECTIVE: To evaluate marijuana use by adolescents and young adults with inflammatory bowel disease (IBD). STUDY DESIGN: This descriptive cross-sectional study of patients seen between December 2015 through June 2017 at Children's Hospital Colorado for IBD enrolled patients 13-23 years of age, independent of marijuana use status. Information obtained consisted of chart review, electronic and interview self-report, and serum cannabinoid levels. Marijuana ever-users were compared with never-users for clinical characteristics and perceptions of risk with use; users provided information on routes, patterns, motivations, and perceived benefits and problems with use. RESULTS: Of 99 participants, ever-use was endorsed by 32% (32 of 99) and daily or almost daily use by 9% (9 of 99). Older age was the only characteristic related to endorsing marijuana use. Twenty-nine ever-users completed all questionnaires. After adjusting for age, users were 10.7 times more likely to perceive low risk of harm with regular use (P < .001). At least 1 medical reason for use was endorsed by 57% (17 of 30), most commonly for relief of physical pain (53%, 16 of 30) (2 did not complete all questionnaires). Problems from use were identified by 37% (11 of 30), most commonly craving/strong urge to use. Most common route of use was smoking (83%) followed by edibles (50%), dabbing (40%), and vaping (30%). CONCLUSIONS: Marijuana use by adolescents and young adults with IBD is common and perceived as beneficial. Guidelines for screening, testing, and counseling of marijuana use should be developed for patients with IBD.

Long-term opioid use after inpatient surgery - A retrospective cohort study.

BACKGROUND: Knowledge of incidence and risk factors for long-term opioid prescribing is critical for surgical patients. In this retrospective cohort study, we linked information available at the time of surgery with prescription data to ascertain characteristics associated with prolonged opioid therapy. METHODS: Patients (n = 6003) with claims in the Colorado All Payer Claims Database (APCD) were matched with 20,501 encounters in a clinical database. Rates of prescription filling were defined by at least one monthly opioid claim relative to the date of surgery. Associations of variables with claims during months 2-6 post-operatively ("long-term prescription filling") were evaluated, and significant variables were jointly modeled using binomial regression. RESULTS: Rates of patients filling opioid prescriptions preoperatively [month (M) relative to date of surgery] were 22%(-3 M), 24%(-2 M), and 27%(-1 M); after surgery, opioid fill rates were 62%(1 M), 28%(2 M), 24%(3), 24%(4 M), 23%(5 M), and 22%(6 M). The majority, 71-76%, of patients filling prescriptions in months 2-6 after surgery had also filled before surgery. In the binomial regression model, long-term opioid use was associated with prior opioid use (p < 0.0001), age ≥26 to <65 relative to age ≥ 65 (p < 0.0001), orthopedic surgery (p = 0.001), colorectal surgery (p = 0.003), multiple procedures (p < 0.0001), and worse physical status classification (p < 0.0001). CONCLUSIONS: Patients who had filled opioid prescriptions preoperatively comprised the majority of the group who filled long-term prescriptions. Surgical procedures were associated with discontinuation of previous opioid prescribing in some patients. For others, surgery marked the initiation of prolonged opioid therapy. Surgical encounters should include interventions aimed to reduce long-term opioid use.

Children's brain activation during risky decision-making: A contributor to substance problems?

OBJECTIVE: Among young children excessive externalizing behaviors often predict adolescent conduct and substance use disorders. Adolescents with those disorders show aberrant brain function when choosing between risky or cautious options. We therefore asked whether similarly aberrant brain function during risky decision-making accompanies excessive externalizing behaviors among children, hypothesizing an association between externalizing severity and regional intensity of brain activation during risky decision-making. METHOD: Fifty-eight (58) 9-11 year-old children (both sexes), half community-recruited, half with substance-treated relatives, had parent-rated Child Behavior Checklist Externalizing scores. During fMRI, children repeatedly chose between doing a cautious behavior earning 1 point or a risky behavior that won 5 or lost 10 points. Conservative permutation-based whole-brain regression analyses sought brain regions where, during decision-making, activation significantly associated with externalizing score, with sex, and with their interaction. RESULTS: Before risky responses higher externalizing scores were significantly, negatively associated with neural activation (t's: 2.91-4.76) in regions including medial prefrontal cortex (monitors environmental reward-punishment schedules), insula (monitors internal motivating states, e.g., hunger, anxiety), dopaminergic striatal and midbrain structures (anticipate and mediate reward), and cerebellum (where injuries actually induce externalizing behaviors). Before cautious responses there were no significant externalizing:activation associations (except in post hoc exploratory analyses), no significant sex differences in activation, and no significant sex-by-externalizing interactions. CONCLUSIONS: Among children displaying more externalizing behaviors extensive decision-critical brain regions were hypoactive before risky behaviors. Such neural hypoactivity may contribute to the excessive real-life risky decisions that often produce externalizing behaviors. Substance exposure, minimal here, was a very unlikely cause.

A Behavioral Measure of Costly Helping: Replicating and Extending the Association with Callous Unemotional Traits in Male Adolescents.

BACKGROUND: Some conduct-disordered youths have high levels of callous unemotional traits and meet the DSM-5's "with limited prosocial emotions" (LPE) specifier. These youths often do aggressive, self-benefitting acts that cost others. We previously developed a task, the AlAn's game, which asks participants to repeatedly decide whether to accept or reject offers in which they will receive money but a planned charity donation will be reduced. In our prior work, more "costly helping" (i.e., rejecting the offered money and protecting the donation) was associated with lower callous unemotional traits. Here we extend that prior work in a larger sample of adolescent male patients with serious conduct problems and controls, and test whether this association is mediated specifically by a Moral Elevation response (i.e., a positive emotional response to another's act of virtue). METHODS: The adolescent male participants were: 45 patients (23 with LPE) and 26 controls, who underwent an extensive phenotypic assessment including a measure of Moral Elevation. About 1 week later participants played the AlAn's game. RESULTS: All AlAn's game outcomes demonstrated significant group effects: (1) money taken for self (p = 0.02); (2) money left in the charitable donation (p = 0.03); and, (3) costly helping (p = 0.047). Controls took the least money and did the most costly helping, while patients with LPE took the most money and did the least costly helping. Groups also significantly differed in post-stimulus Moral Elevation scores (p = 0.005). Exploratory analyses supported that the relationship between callous unemotional traits and costly helping on the AlAn's game may be mediated in part by differences in Moral Elevation. CONCLUSIONS: The AlAn's game provides a standardized behavioral measure associated with callous unemotional traits. Adolescents with high levels of callous unemotional traits engage in fewer costly helping behaviors, and those differences may be related to blunting of positive emotional responses.

Adolescents with substance use disorder and assent/consent: Empirical data on understanding biobank risks in genomic research.

OBJECTIVE: This study assessed whether a customized disclosure form increases understanding for adolescents with substance use disorder (SUD) when compared to a standard disclosure for genomic addiction research. METHOD: We gathered empirical data from adolescents with SUD, family members, former patients followed since adolescence, and community counterparts. The study was conducted in four stages. Stage 1: national experts (n=32) identified current, future, speculative risks of broadly shared biobanks. Stage 2 assessed participants' (n=181) understanding of current risks as a prerequisite for rating saliency of risks via a Visual Analog Scale. Salient risks were incorporated into a customized disclosure form. Stage 3 compared the understanding of customized disclosure by participants (n=165) at baseline; all groups scored comparably. Stage 4 conducted a direct comparison of the standard disclosure to standard disclosure plus customized disclosure (n=195). Independent t-tests compared understanding in those receiving the standard disclosure to standard disclosure plus customized disclosure within 6 groups. RESULTS: The customized disclosure significantly improved understanding in adolescent patients (p=0.002) and parents of patients (p=0.006) to the level of their counterparts. The customized disclosure also significantly improved understanding in siblings of former patients (p=0.034). Understanding of standard disclosure in patients versus controls was significantly different (p=0.005). The groups receiving the customized disclosure scored significantly higher. Understanding of the standard disclosure plus customized disclosure in patients versus controls was not significantly different. CONCLUSION: Adolescents with addictions understand the risks of participating in genomic addiction research as well as their community counterparts when information provided is salient to them.

Adolescent Male Conduct-Disordered Patients in Substance Use Disorder Treatment: Examining the "Limited Prosocial Emotions" Specifier.

To our knowledge, this is the first study to examine the DSM-5-defined conduct disorder (CD) with limited prosocial emotions (LPE) among adolescents in substance use disorder (SUD) treatment, despite the high rates of CD in this population. We tested previously published methods of LPE categorization in a sample of male conduct-disordered patients in SUD treatment (n=196). CD with LPE patients did not demonstrate a distinct pattern in terms of demographics or co-morbidity regardless of the categorization method utilized. In conclusion, LPE, as operationalized here, does not identify a distinct subgroup of patients based on psychiatric comorbidity, SUD diagnoses, or demographics.

Brain cortical thickness in male adolescents with serious substance use and conduct problems.

BACKGROUND: Adolescents with substance use disorder (SUD) and conduct problems exhibit high levels of impulsivity and poor self-control. Limited work to date tests for brain cortical thickness differences in these youths. OBJECTIVES: To investigate differences in cortical thickness between adolescents with substance use and conduct problems and controls. METHODS: We recruited 25 male adolescents with SUD, and 19 male adolescent controls, and completed structural 3T magnetic resonance brain imaging. Using the surface-based morphometry software FreeSurfer, we completed region-of-interest (ROI) analyses for group cortical thickness differences in left, and separately right, inferior frontal gyrus (IFG), orbitofrontal cortex (OFC) and insula. Using FreeSurfer, we completed whole-cerebrum analyses of group differences in cortical thickness. RESULTS: Versus controls, the SUD group showed no cortical thickness differences in ROI analyses. Controlling for age and IQ, no regions with cortical thickness differences were found using whole-cerebrum analyses (though secondary analyses co-varying IQ and whole-cerebrum cortical thickness yielded a between-group cortical thickness difference in the left posterior cingulate/precuneus). Secondary findings showed that the SUD group, relative to controls, demonstrated significantly less right > left asymmetry in IFG, had weaker insular-to-whole-cerebrum cortical thickness correlations, and showed a positive association between conduct disorder symptom count and cortical thickness in a superior temporal gyrus cluster. CONCLUSION: Functional group differences may reflect a more nuanced cortical morphometric difference than ROI cortical thickness. Further investigation of morphometric differences is needed. If replicable findings can be established, they may aid in developing improved diagnostic or more targeted treatment approaches.

Adolescents' Neural Processing of Risky Decisions: Effects of Sex and Behavioral Disinhibition.

BACKGROUND: Accidental injury and homicide, relatively common among adolescents, often follow risky behaviors; those are done more by boys and by adolescents with greater behavioral disinhibition (BD). HYPOTHESIS: Neural processing during adolescents' risky decision-making will differ in youths with greater BD severity, and in males vs. females, both before cautious behaviors and before risky behaviors. METHODOLOGY/PRINCIPAL FINDINGS: 81 adolescents (PATIENTS with substance and conduct problems, and comparison youths (Comparisons)), assessed in a 2 x 2 design ( PATIENTS: Comparisons x Male:Female) repeatedly decided between doing a cautious behavior that earned 1 cent, or a risky one that either won 5 or lost 10 cents. Odds of winning after risky responses gradually decreased. Functional magnetic resonance imaging captured brain activity during 4-sec deliberation periods preceding responses. Most neural activation appeared in known decision-making structures. PATIENTS, who had more severe BD scores and clinical problems than Comparisons, also had extensive neural hypoactivity. Comparisons' greater activation before cautious responses included frontal pole, medial prefrontal cortex, striatum, and other regions; and before risky responses, insula, temporal, and parietal regions. Males made more risky and fewer cautious responses than females, but before cautious responses males activated numerous regions more than females. Before risky behaviors female-greater activation was more posterior, and male-greater more anterior. CONCLUSIONS/SIGNIFICANCE: Neural processing differences during risky-cautious decision-making may underlie group differences in adolescents' substance-related and antisocial risk-taking. Patients reported harmful real-life decisions and showed extensive neural hypoactivity during risky-or-cautious decision-making. Males made more risky responses than females; apparently biased toward risky decisions, males (compared with females) utilized many more neural resources to make and maintain cautious decisions, indicating an important risk-related brain sexual dimorphism. The results suggest new possibilities for prevention and management of excessive, dangerous adolescent risk-taking.

Female adolescents with severe substance and conduct problems have substantially less brain gray matter volume.

OBJECTIVE: Structural neuroimaging studies have demonstrated lower regional gray matter volume in adolescents with severe substance and conduct problems. These research studies, including ours, have generally focused on male-only or mixed-sex samples of adolescents with conduct and/or substance problems. Here we compare gray matter volume between female adolescents with severe substance and conduct problems and female healthy controls of similar ages. HYPOTHESES: Female adolescents with severe substance and conduct problems will show significantly less gray matter volume in frontal regions critical to inhibition (i.e. dorsolateral prefrontal cortex and ventrolateral prefrontal cortex), conflict processing (i.e., anterior cingulate), valuation of expected outcomes (i.e., medial orbitofrontal cortex) and the dopamine reward system (i.e. striatum). METHODS: We conducted whole-brain voxel-based morphometric comparison of structural MR images of 22 patients (14-18 years) with severe substance and conduct problems and 21 controls of similar age using statistical parametric mapping (SPM) and voxel-based morphometric (VBM8) toolbox. We tested group differences in regional gray matter volume with analyses of covariance, adjusting for age and IQ at p<0.05, corrected for multiple comparisons at whole-brain cluster-level threshold. RESULTS: Female adolescents with severe substance and conduct problems compared to controls showed significantly less gray matter volume in right dorsolateral prefrontal cortex, left ventrolateral prefrontal cortex, medial orbitofrontal cortex, anterior cingulate, bilateral somatosensory cortex, left supramarginal gyrus, and bilateral angular gyrus. Considering the entire brain, patients had 9.5% less overall gray matter volume compared to controls. CONCLUSIONS: Female adolescents with severe substance and conduct problems in comparison to similarly aged female healthy controls showed substantially lower gray matter volume in brain regions involved in inhibition, conflict processing, valuation of outcomes, decision-making, reward, risk-taking, and rule-breaking antisocial behavior.

Adolescent perspectives on the return of individual results in genomic addiction research.

This study surveyed all adolescents who were enrolled in behavioral genomic research and provided DNA to a biobank, including 320 patients undergoing treatment for substance and conduct problems (SCPs) and 109 non-SCP controls. Participants selected from three options on the return of individual genomic results (RIR) and rated eight methods of re-contact. Most individuals with SCPs (77.8%) and non-SCP controls (72.5%) wanted RIR involving health or behavioral implications. The majority of individuals with SCPs (67.2%) and non-SCP controls (69.7%) indicated that phone re-contact was 'best', with e-mail (22.5% SCPs, 33.9% non-SCPs) and social networking websites (21.3% SCPs, 20.2% non-SCPs) being viable options. These results suggest a layered approach for RIR: phone calls, followed by e-mails and a secure message to a social networking account. Data from this special and vulnerable population, which includes youth involved in the criminal justice system and substantial minority participation, bring an essential and missing perspective to the discussion of RIR.

What adolescents enrolled in genomic addiction research want to know about conflicts of interest.

BACKGROUND: Perspectives of adolescent research participants regarding conflicts of interest (COIs) and their impact on trust in researchers have not been studied. This study evaluates views of adolescent patients in treatment for substance and conduct problems compared to controls enrolled in genomic addiction research. METHODS: Participants included 273 (190 patients, 83 controls) adolescents. Participants consented or assented (with parental consent) to have their genomic information deposited in a NIH biobank that shares information globally with qualified investigators. As part of that study, participants completed a COI survey. Endorsement of each COI item was analyzed with multiple logistic regressions, evaluating group, age, sex, ethnicity, and highest grade completed. RESULTS: Patients and controls differed in gender, ethnicity and highest grade completed. In response to the survey, 38.4% of patients and 25.3% of controls "want to know" and 35.3% of patients and 37.3% of controls "might want to know" about COIs. Males were less likely to want/might want disclosure about COIs. Older patients were more likely to want disclosure about financial interests; patients were more likely to want disclosure about possible treatments; males were more likely to want information about monetary gains. Both groups requested between 1 paragraph and 1 page of information. Disclosure of COIs did not impact trust for most participants. CONCLUSION: Adolescent patients and controls in this study want comparable information for disclosure of COIs including monetary gains, salary, publications, grants, and professional awards. Notably, the majority of patients and controls report that disclosure will not undermine trust in researchers.

Reduced cortical gray matter volume in male adolescents with substance and conduct problems.

UNLABELLED: Boys with serious conduct and substance problems (Antisocial Substance Dependence (ASD)) repeatedly make impulsive and risky decisions in spite of possible negative consequences. Because prefrontal cortex (PFC) is involved in planning behavior in accord with prior rewards and punishments, structural abnormalities in PFC could contribute to a person's propensity to make risky decisions. METHODS: We acquired high-resolution structural images of 25 male ASD patients (ages 14-18 years) and 19 controls of similar ages using a 3T MR system. We conducted whole-brain voxel-based morphometric analysis (p<0.05, corrected for multiple comparisons at whole-brain cluster-level) using Statistical Parametric Mapping version-5 and tested group differences in regional gray matter (GM) volume with analyses of covariance, adjusting for total GM volume, age, and IQ; we further adjusted between-group analyses for ADHD and depression. As secondary analyses, we tested for negative associations between GM volume and impulsivity within groups and separately, GM volume and symptom severity within patients using whole-brain regression analyses. RESULTS: ASD boys had significantly lower GM volume than controls in left dorsolateral PFC (DLPFC), right lingual gyrus and bilateral cerebellum, and significantly higher GM volume in right precuneus. Left DLPFC GM volume showed negative association with impulsivity within controls and negative association with substance dependence severity within patients. CONCLUSIONS: ASD boys show reduced GM volumes in several regions including DLPFC, a region highly relevant to impulsivity, disinhibition, and decision-making, and cerebellum, a region important for behavioral regulation, while they showed increased GM in precuneus, a region associated with self-referential and self-centered thinking.