Pirro V.,University of Turin |
Pirro V.,Regional Antidoping And Toxicology Center rtinaria |
Fusari I.,University of Turin |
Di Corcia D.,Regional Antidoping And Toxicology Center rtinaria |
And 5 more authors.
Therapeutic Drug Monitoring | Year: 2014
BACKGROUND:: Buprenorphine (BUP) is a psychoactive pharmaceutical drug largely used to treat opiate addiction. Short-term therapeutic monitoring is supported by toxicological analysis of blood and urine samples, whereas long-term monitoring by means of hair analysis is rarely used. Aim of this work was to develop and validate a highly sensitive ultrahigh-performance liquid chromatography tandem mass spectrometry method to detect BUP and norbuprenorphine (NBUP) in head hair. METHODS:: Interindividual correlation between oral dosage of BUP and head hair concentration was investigated. Furthermore, an intra-individual study by means of segmental analysis was performed on subjects with variable maintenance dosage. Hair samples from a population of 79 patients in treatment for opiate addiction were analyzed. RESULTS:: The validated ultrahigh-performance liquid chromatography tandem mass spectrometry protocol allowed to obtain limits of detection and quantification at 0.6 and 2.2 pg/mg for BUP and 5.0 and 17 pg/mg for NBUP, respectively. Validation criteria were satisfied, assuring selective analyte identification, high detection capability, and precise and accurate quantification. Significant positive correlation was found between constant oral BUP dosage (1-32 mg/d) and the summed up head hair concentrations of BUP and NBUP. Nevertheless, substantial interindividual variability limits the chance to predict the oral dosage taken by each subject from the measured concentrations in head hair. In contrast, strong correlation was observed in the results of intra-individual segmental analysis, which proved reliable to detect oral dosage variations during therapy. CONCLUSIONS:: Remarkably, all hair samples yielded BUP concentrations higher than 10 pg/mg, even when the lowest dosage was administered. Thus, these results support the selection of 10 pg/mg as a cutoff value. © 2014 by Lippincott Williams & Wilkins. Source
Simoncini M.,ASL Turin |
Gatti A.,ASL Turin |
Balla S.,ASL Turin |
Capellero B.,ASL Turin |
And 4 more authors.
Aging Clinical and Experimental Research | Year: 2015
Background: Sleep disorders are very common in elderly institutionalized people with dementia and acupressure recently has been associated with conventional medicine in their treatment.Aims: Exploring the effectiveness of acupressure for the treatment of insomnia and other sleep disturbances and we want to show that the acupressure treatment is feasible also in elderly resident patients.Methods: We enrolled institutionalized patients suffering from Alzheimer’s disease with mild cognitive impairment and insomnia. A daily acupressure on HT7 point (H7 Insomnia Control®) was performed for a 8-week period. We administered the following scales: the mini mental state examination, the global deterioration scale, the neuropsychiatric inventory, the state-trait-anxiety inventory, the activity daily living and the instrumental activity daily living, the global health quality of life, and the Pittsburgh sleep quality index.Results: After receiving the acupressure treatment, patients saw a significant decrease of sleep disorders. The number of hours of effective sleep was perceived as increased. Furthermore, the time necessary to fall asleep decreased significantly and also the quality of sleep increased. Additionally, also the quality of life was bettered. Sedative drugs have been reduced in all patients involved in the study.Conclusions: Acupressure can be recommended as a complementary, effective, and non-intrusive method to reduce sleep disturbances in old resident patients affected by cognitive disorders. A limitation of the study is the small sample size. More studies are needed to further validate the results of our study. © 2014, Springer International Publishing Switzerland. Source
Demarie D.,ASL Turin |
Marletta G.,ASL Turin |
Imazio M.,ASL Turin |
Cappa C.,ASL Turin |
And 5 more authors.
Journal of Cardiovascular Medicine | Year: 2011
Background: Illicit drugs such as cocaine, and methadone can induce acquired long QT syndrome. Objective: The aim of this study was to evaluate the prevalence of cardiovascular disease and to assess the risk of torsades de pointes in substance abuse patients either with methadone or buprenorphine maintenance therapy, or without any specific therapy for opiate addiction. Methods: From November 2008 to December 2009, 190 patients (153 men, mean age 38.2 years, 22-56 years) with a substance use disorder according to DSM IV TR criteria were included in the study. All patients underwent blood tests, serial electrocardiogram (ECG) and, when necessary, additional testing, including echocardiogram, exercise test and Holter monitoring. Age and sex-matched healthy controls were also evaluated and compared with the cases. Results: One hundred and twenty-five patients (65.7%) had associated diseases. The prevalence of coronary artery disease and hypertension was, respectively, 2.1 and 5.2% in the addicted population. The percentage of abnormal ECGs was 34.2% in the addicted population and 4.7% in the nonaddicted population (P<0.001). Twenty-five addicted patients had a QT interval prolongation (10 patients ≤480 ms). There were no sudden deaths or major cardiac events during the observation period. Conclusions: Our results indicate that the QT interval prolongation is not a negative prognostic marker in the addicted population, even with associated diseases. ECG should be performed when other drugs potentially prolonging QT interval are associated. Substance abuse patients should be followed by multidisciplinary teams, and blood tests and ECGs should be performed regularly. © 2010 Italian Federation of Cardiology. Source