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Biomedical subjects

G Ponce

Publications and source records attributed to G Ponce.

43 records · Page 3Linked to original sources
PubMedDate not supplied

Naltrexone versus acamprosate: one year follow-up of alcohol dependence treatment.

Naltrexone and acamprosate reduce relapse in alcohol dependence. They have not yet been compared in a published trial. The aim of this study was to compare the efficacy of these compounds in conditions similar to those in routine clinical practice. Random allocation to a year of treatment with naltrexone (50 mg/day) or acamprosate (1665-1998 mg/day) was made in 157 recently detoxified alcohol-dependent men with moderate dependence (evaluated using the Addictions Severity Index and Severity of Alcohol Dependence Scale). All were patients whom a member of the family would accompany regularly to appointments. Alcohol consumption, craving and adverse events were recorded weekly for the first 3 months, and then bi-weekly, by the treating psychiatrist who was not blinded. At 3-monthly intervals, investigators who were blinded to the treatment documented patients' alcohol consumption based on patients' accounts, information given by the psychiatrists when necessary, and reports from patients' families. Serum gamma-glutamyltransferase (GGT) was also measured. Efforts were made to sustain the blindness of the investigators. The same investigator did not assess the same patient twice. The integrity of the blindness was not checked. There was no difference between treatments in mean time to first drink (naltrexone 44 days, acamprosate 39 days) but the time to first relapse (five or more drinks in a day) was 63 days (naltrexone) versus 42 days (acamprosate) (P = 0.02). At the end of 1 year, 41% receiving naltrexone and 17% receiving acamprosate had not relapsed (P = 0.0009). The cumulative number of days of abstinence was significantly greater, and the number of drinks consumed at one time and severity of craving were significantly less, in the naltrexone group compared to the acamprosate group, as was the percentage of heavy drinking days (P = 0.038). More patients in the acamprosate than the naltrexone group were commenced on disulfiram during the study. Naltrexone patients attended significantly more group therapy sessions, though this could not explain their better outcome. There were non-significant trends for the naltrexone group to comply better with medication, to stay in the study longer, and to show greater improvement over baseline in serum GGT.

Acamprosate↗
PubMedDate not supplied

[Validation in the adult Spanish population of the Wender Utah Rating Scale for the retrospective evaluation in adults of attention deficit/hyperactivity disorder in childhood].

INTRODUCTION: Attention Deficit/Hyperactivity Disorder (ADHD) is one of the most common neuropsychiatric disorders in the early ages. Recently, it has been verified that presence of ADHD in early ages could be a vulnerability factor for developing different psychiatric disorders in adults, such as substance abuse and personality disorders. The retrospective diagnosis of this disorder in early ages of adult patients is specially problematic. OBJECTIVE: The Wender Utah Rating Scale (WURS) has been translated and adaptated with the purpose of validating it in the Spanish population. PATIENTS AND METHOD: It was administered the questionnaire to 266 patients of an Addictive Behaviours Unit. In 82 cases it was realized a clinical diagnosis of ADHD in early ages, and others 184 cases did not show antecedents of this disorder. RESULTS: 25 items which better discriminate cases from controls were chosen. The Cronbach s coefficient for this subscale was 0.94. The cut off 32 optimized sensitivity (91.5%) and specificity (90.8%). The positive and negative predictive values was 81% and 96% respectively. The total of incorrectly classified subjects was 9%. CONCLUSIONS: Our version of the WURS shows an adequate psychometric characteristics, that indicate an adequate validity for the detection of adult patients with antecedents of ADHD in early ages. In our population of patients with addictive behaviours, it has demonstrated to be very useful to differentiate an important subgroup of patients with antecedents of ADHD in early ages. It would be very interesting the replication of this study in other psychopathological and neurological conditions.

Adult↗
PubMedDate not supplied

[Bact-Alert automatized system for blood cultures: 5 vs 7 days of incubation. First Argentine multicentre study].

Bact-Alert automatized system for blood cultures: 5 vs 7 days of incubation. First Argentine multicentre study. Between January and December 2001, we analyzed 80,141 blood cultures by the Bact-Alert system (14,960 FAN aerobics, 3,855 FAN anaerobic, 11,114 standards aerobics, 11,367 standards anaerobic, 12,054 pediatrics and 26,791 FAN pediatrics bottles) and 44.235 series from 27.615 patients at eight hospitals of Buenos Aires city, one of La Plata city and three of the Buenos Aires province. A total of 13,657 blood cultures yielded a positive result. Only 181 of them had been detected as positive between the 5th and 7th day of incubation and only 26 (0.19%) had clinical significance (Staphylococcus aureus 3; coagulase negative staphylococci 2; Enterococcus faecalis 1; Streptococcus pneumoniae 2; Campylobacter spp 1; Escherichia coli 1; Enterobacter cloacae 1; Enterobacteraerogenes 1; Citrobacter freundii 1; Klebsiella pneumoniae 1; Proteus mirabilis 1; Serratia marcescens 4; yeasts 7, including one strain of Cryptococcus neoformans). Of the total of contaminants, 38% were isolated by the anaerobic standard (65% were Propionibacterium spp and 29% coagulase negative staphylococci), 31.2% by the FAN aerobic (33.3% difphteroids and 28.9% Bacillus spp), 11.8% by the pediatric, 9% by FAN pediatric, 8.33% by aerobic standard and 1.4% by FAN anaerobic bottle. Our results show that the prolonged incubation of blood cultures for more than 5 days using the Bact-Alert system is unnecessary.

Argentina↗
PubMedDate not supplied

[Efficacy of naltrexone in the treatment of alcohol dependence disorder in women].

UNLABELLED: Alcoholism is a major public health problem. Although its prevalence is higher in men, the clinical and social repercussions of alcoholism in women are also of great concern, as they have differential characteristics in different vulnerability, and thus therapeutic implications. In recent years, we have seen an increase of the percentages of women with problems related to alcohol consumption in Spain. Several pharmacological treatments as the antagonist of the opioid receptors naltrexone have demonstrated efficacy in the treatment of dehabituation of alcoholism in males, however, there are no studies in the female population. This report is the first randomized study about the efficacy of naltrexone in the treatment of dehabituation in women with alcohol dependence disorder. METHODS: In a 12 week, single-blind, randomized trial, we studied 100 women with alcohol dependence disorder (DSM-IV), evaluating the efficacy of adding naltrexone as adjunctive treatment to the dehabituation treatment. RESULTS: The naltrexone group showed a lower rate of alcohol relapse during the follow-up period (76 % vs. 46%; chi2=8.239; p=0.004), and significantly lower dropout rates (16% vs. 38 %; chi2=5.074; p=0.024). We also found a lower number of days of intoxication (2.88 vs. 14.64; t=2.732; p=0.011). CONCLUSIONS: Naltrexone shows efficacy as adjunctive treatment to maintain abstinence in women with alcohol dependence disorder. Further studies are needed to confirm the efficacy of this treatment and to find specific predictors of good outcome in women.

Adult↗
PubMedDate not supplied

[Oxcarbazepine in the prevention of epileptic syndromes in alcohol detoxification].

INTRODUCTION: Alcohol withdrawal syndrome may be accompanied by severe complications, such as epileptic syndromes or delirium tremens. A number of pharmacological strategies, especially benzodiazepines (BZD), have been used in their treatment and prevention, although problems can arise from the use of these drugs due to their addictive properties. The classical anticonvulsive drugs are rarely employed as an alternative because of their side effects, but the latest generation of substances could be especially useful. AIMS. The aim of this study was to examine the safety of oxcarbazepine (OXC) in the prevention of epileptic seizures and complications deriving from the withdrawal syndrome in alcohol detoxification treatment. PATIENTS AND METHODS: The study involved a comparison of two groups of patients with a syndrome of physical dependence on alcohol, 42 of whom were treated with OXC and the remaining 42 received BZD as part of a programmed detoxification therapy. RESULTS: Both OXC and BZD were equally efficient in preventing the appearance of epileptic complications and in reducing withdrawal symptoms. Overall, OXC produced fewer adverse events (p < 0.001) and offered fewer problems when it came to ending administration (p < 0.001). CONCLUSIONS: OXC can be a valuable alternative to BZD and other pharmacological treatments in the prevention of complications in detoxification therapy, especially because of the absence of addictive properties and its having a better safety profile than classical anticonvulsant drugs.

Adult↗
PubMedDate not supplied

[Executive dysfunctions in adults with attention deficit hyperactivity disorder].

INTRODUCTION: Several different follow-up studies have shown that attention deficit hyperactivity disorder (ADHD) can persist into adulthood. AIM: To review the findings in adults with ADHD related to alterations in the executive functions. DEVELOPMENT: Research conducted among children with ADHD has revealed the existence of alterations in different tasks that evaluate the executive functions, such as the planning test, sustained attention tasks, cognitive flexibility, verbal fluency and working memory tasks, as well as several inhibition response tasks. In adults with ADHD, despite the lower number of reports in the literature and the methodological shortcomings that exist in some studies, analogous results have also been described with respect to executive functioning, namely, disorders affecting inhibition response, the capacity for planning, difficulties in cognitive flexibility and verbal fluency, and problems with working memory, which include aspects of spatial working memory, logical or visual memory. CONCLUSIONS: The findings we have available at present enable us to confirm the persistence of executive dysfunctions in adult patients with ADHD that are similar to those observed in children with ADHD.

Adult↗