[About the use of ketamine in emergency psychiatric settings]. / À propos de l'utilisation du traitement de la kétamine aux urgences psychiatriques.

Ketamine and its S-enantiomer, esketamine, have shown to be promising molecules for use in psychiatry. Widely investigated for the treatment of drug-resistant depression, they could be used in emergency conditions, due to their rapid onset of action, in two main conditions : 1) psychomotor agitation, and 2) acute suicidal ideation and behavior (suicidal crisis). In particular, intranasal administration offers a non-invasive, safe and very easy to administer option. An effect begins a few hours to a day after intake and lasts for about a week. These molecules present an innovative option for the future and their specific use in psychiatric emergencies.

La kétamine et son énantiomère S, l'eskétamine, se sont révélés être des molécules prometteuses pour leur utilisation en psychiatrie. Largement étudiées pour le traitement de la dépression pharmacorésistante, elles pourraient être utilisées dans des conditions d'urgence et, grâce à leur rapidité d'action, dans deux situations : 1) l'agitation psychomotrice, et 2) l'idéation et le comportement suicidaire aigus (crise suicidaire). En particulier, l'administration par voie intranasale offre une option non invasive, sûre et facile à utiliser. On observe un effet quelques heures à un jour après la prise, qui perdure pendant environ une semaine. Ces molécules représentent une option innovatrice pour le futur et pour une utilisation spécifique aux urgences psychiatriques.

Meat, fish, dairy products and risk of hematological malignancies in adults - a systematic review and meta-analysis of prospective studies.

This systematic review and meta-analysis of cohort studies examine the association of meat, fish, and dairy product consumption with the risk of hematological neoplasms in adults. Thirteen studies encompassing 1,480,986 participants and 10,442 incident cases were included. Red or processed meat consumption was not associated with the risk of leukemia, acute myeloid leukemia, non-Hodgkin lymphoma (NHL) and small lymphocytic lymphoma/chronic lymphocytic leukemia (CLL/SLL). Poultry consumption did not seem to affect the risk of leukemia, NHL, CLL/SLL, and multiple myeloma (MM). Fish consumption was not associated with leukemia, NHL, CLL/SLL, and MM risk. Interestingly though, fish consumption was positively associated with myeloid leukemia risk (pooled RR = 1.74, 95% CI: 1.22-2.47, random effects, highest vs. lowest category). Milk and dairy product consumption was not associated with NHL and leukemia risk. In conclusion, methodologically strict prospective studies are mandatory, in order to extract reliable conclusions concerning the role of these dietary factors in hematological malignancies.

A case report of cholinergic rebound syndrome following abrupt low-dose clozapine discontinuation in a patient with type I bipolar affective disorder.

BACKGROUND: Rebound cholinergic syndrome is a rare, but well known unwanted phenomenon occurring after abrupt clozapine discontinuation. There have been previous reported cases of cholinergic rebound in the literature; however, these reports described cholinergic rebound following cessation of high doses of clozapine in patients diagnosed with schizophrenia. Here, we report a case of rebound cholinergic syndrome and catatonia in a male patient three days after abrupt discontinuation of 50 mg of clozapine prescribed for type I bipolar affective disorder. CASE PRESENTATION: A 66-year old male of Spanish origin, treated for type I bipolar affective disorder for 15 years and for Crohn disease, was brought to the emergency department because of a sudden onset of mutism, dysphagia and trismus. He was described catatonic and presented hypertension, tachycardia and tachypnea. His body temperature was normal and the laboratory tests were unremarkable at presentation. A head CT and an EEG were in the normal range. While reviewing his history, it appeared the he was on clozapine 50 mg a day, first introduced 2 months ago, during a previous hospitalization for a manic episode resistant to other mood stabilizers. For an unknown reason, the patient's psychiatrist stopped clozapine three days before the admission and replaced it by risperidone 5 mg and quetiapine 200 mg daily. A cholinergic rebound syndrome was then evoked. The patient's ability to speak recovered dramatically and fast after the intravenous administration of 2.5 mg of biperiden supporting the diagnosis. Risperidone and quetiapine were also stopped. The patient fully recovered in 20 days after the reintroduction of 50 mg of clozapine and 2.5 mg of biperiden daily. CONCLUSIONS: This case report underscores that cholinergic rebound syndrome may occur in patients suffering from bipolar affective disorders, being on clozapine as a mood stabilizer. The low dose clozapine does not preclude severe manifestations of the phenomenon. Progressive tapering should therefore be adopted in any case.

Obesity and Risk for Brain/CNS Tumors, Gliomas and Meningiomas: A Meta-Analysis.

OBJECTIVE: This meta-analysis aims to examine the association between being overweight/obese and risk of meningiomas and gliomas as well as overall brain/central nervous system (CNS) tumors. STUDY DESIGN: Potentially eligible publications were sought in PubMed up to June 30, 2014. Random-effects meta-analysis and dose-response meta-regression analysis was conducted. Cochran Q statistic, I-squared and tau-squared were used for the assessment of between-study heterogeneity. The analysis was performed using Stata/SE version 13 statistical software. RESULTS: A total of 22 studies were eligible, namely 14 cohort studies (10,219 incident brain/CNS tumor cases, 1,319 meningioma and 2,418 glioma cases in a total cohort size of 10,143,803 subjects) and eight case-control studies (1,009 brain/CNS cases, 1,977 meningioma cases, 1,265 glioma cases and 8,316 controls). In females, overweight status/obesity was associated with increased risk for overall brain/CNS tumors (pooled RR = 1.12, 95%CI: 1.03-1.21, 10 study arms), meningiomas (pooled RR = 1.27, 95%CI: 1.13-1.43, 16 study arms) and gliomas (pooled RR = 1.17, 95%CI: 1.03-1.32, six arms). Obese (BMI>30 kg/m2) females seemed particularly aggravated in terms of brain/CNS tumor (pooled RR = 1.19, 95%CI: 1.05-1.36, six study arms) and meningioma risk (pooled RR = 1.48, 95%CI: 1.28-1.71, seven arms). In males, overweight/obesity status correlated with increased meningioma risk (pooled RR = 1.58, 95%CI: 1.22-2.04, nine study arms), whereas the respective association with overall brain/CNS tumor or glioma risk was not statistically significant. Dose-response meta-regression analysis further validated the findings. CONCLUSION: Our findings highlight obesity as a risk factor for overall brain/CNS tumors, meningiomas and gliomas among females, as well as for meningiomas among males.

Alcohol intake, alcoholic beverage type and multiple myeloma risk: a meta-analysis of 26 observational studies.

This meta-analysis aimed to examine the association between alcohol consumption and multiple myeloma (MM) risk. Eligible publications were sought in PubMed to 31 December 2013. Separate analyses were performed by study design, gender, alcoholic beverages and levels of consumption. Sixteen case-control studies (3921 cases and 19,594 controls) and 10 cohort studies (3167 incident cases in total cohort of 2,557,649 subjects) were eligible. Ever consumption of alcohol was associated with reduced MM risk (pooled relative risk [RR] = 0.88, 95% confidence interval [CI]: 0.79-0.99) and especially consumption of wine correlated with reduced MM risk (pooled RR = 0.77, 95% CI: 0.67-0.89 for ever drinkers). MM risk was not affected by beer or liquor intake. A protective association was observed among females (pooled RR = 0.79, 95% CI: 0.69-0.89 for ever drinkers), whereas the association among males seemed null. In conclusion, contrary to most solid tumors, alcohol intake may confer protection in terms of MM risk among females, with wine being particularly beneficial.

Does history of childhood maltreatment make a difference in prison? A hierarchical approach on early family events and personality traits.

This study attempts to assess childhood maltreatment in prison through a hierarchical approach. The hierarchical approach principally aims to disentangle the independent effects of childhood maltreatment upon psychiatric morbidity/personality traits, if any, from the burden that the adverse family conditions have already imposed to the mental health of the maltreated individual-prisoner. To this direction, a conceptual framework with five hierarchical levels was constructed, namely: immutable demographic factors; family conditions; childhood maltreatment (physical abuse, neglect and sexual abuse); personality traits, habits and psychiatric morbidity; prison-related variables. A self-administered, anonymous set (battery) of questionnaires was administered to 173 male prisoners in the Chalkida prison, Greece; 26% of prisoners disclosed childhood maltreatment. Psychiatric condition in the family, parental alcoholism and parental divorce correlated with childhood maltreatment. After adjustment for immutable demographic factors and family conditions, childhood maltreatment was associated with aggression (both in terms of Lifetime History of Aggression and Buss­Perry Aggression Questionnaire scores), illicit substance use, personal history of psychiatric condition, current smoking, impulsivity and alcohol abuse. In conclusion, childhood maltreatment represents a pivotal, determining factor in the life course of male prisoners. Delinquents seem to suffer from long-term consequences of childhood maltreatment in terms of numerous mental health aspects.

Mediterranean diet, stroke, cognitive impairment, and depression: A meta-analysis.

OBJECTIVE: This meta-analysis aims to quantitatively synthesize all studies that examine the association between adherence to a Mediterranean diet and risk of stroke, depression, cognitive impairment, and Parkinson disease. METHODS: Potentially eligible publications were those providing effect estimates of relative risk (RR) for the association between Mediterranean diet and the aforementioned outcomes. Studies were sought in PubMed up to October 31, 2012. Maximally adjusted effect estimates were extracted; separate analyses were performed for high and moderate adherence. RESULTS: Twenty-two eligible studies were included (11 covered stroke, 9 covered depression, and 8 covered cognitive impairment; only 1 pertained to Parkinson's disease). High adherence to Mediterranean diet was consistently associated with reduced risk for stroke (RR = 0.71, 95% confidence interval [CI] = 0.57-0.89), depression (RR = 0.68, 95% CI = 0.54-0.86), and cognitive impairment (RR = 0.60, 95% CI = 0.43-0.83). Moderate adherence was similarly associated with reduced risk for depression and cognitive impairment, whereas the protective trend concerning stroke was only marginal. Subgroup analyses highlighted the protective actions of high adherence in terms of reduced risk for ischemic stroke, mild cognitive impairment, dementia, and particularly Alzheimer disease. Meta-regression analysis indicated that the protective effects of Mediterranean diet in stroke prevention seemed more sizeable among males. Concerning depression, the protective effects of high adherence seemed independent of age, whereas the favorable actions of moderate adherence seemed to fade away with more advanced age. INTERPRETATION: Adherence to a Mediterranean diet may contribute to the prevention of a series of brain diseases; this may be of special value given the aging of Western societies.

Smoking in prison: a hierarchical approach at the crossroad of personality and childhood events.

BACKGROUND: Smoking has long been considered part of prison culture and studies have shown a high prevalence of smoking within correctional facilities. METHODS: A self-administered, anonymous questionnaire was administered to 173 male prisoners in the Chalkida prison, Greece. To assess current smoking habits, a hierarchical approach was adopted. The underlying conceptual framework included: (i) demographic parameters, (ii) adverse childhood history (physical abuse, parental neglect, parental divorce, alcoholism in the family, sexual abuse and psychiatric condition in the family), (iii) education, personality traits, such as impulsivity (Barrat Impulsivity Scale-11), aggression (Buss-Perry Aggression Questionnaire and Lifetime History of Aggression), and personal history of mental disease, (iv) prison-related features (duration of sentence, sentence already served and change in smoking habits during imprisonment). RESULTS: Eighty percentage of the study sample reported current smoking; 43.4% disclosed deterioration in their smoking habits during imprisonment. The hierarchical approach pointed to: (i) adverse childhood events, i.e. alcoholism in the family [adjusted odds ratio (OR) = 6.29, 95% confidence interval (CI): 2.44-16.25], psychiatric condition in the family (adjusted OR = 4.10, 95% CI: 1.31-12.84), physical abuse (adjusted OR = 2.90, 95% CI: 1.30-6.46), parental neglect (adjusted OR = 2.66, 95% CI: 1.19-5.95), parental divorce (adjusted OR = 2.14, 95% CI: 1.00-4.56), and (ii) impulsivity (adjusted OR = 2.26, 95% CI: 1.12-4.58) as independent risk factors. In addition, deterioration of smoking habits during imprisonment exerted an effect of borderline significance (adjusted OR = 2.02, 95% CI: 0.97-4.24). CONCLUSIONS: Heavy smoking in prison principally integrates two components: unfavourable childhood and current personality traits (impulsivity).

Ruptured ectopic pregnancy: risk factors for a life-threatening condition.

INTRODUCTION: Ectopic pregnancy is a significant cause of maternal morbidity and mortality. The widely used features to establish the diagnosis of ectopic pregnancy are not always sufficient to predict rupture. PROBLEM: To determine the risk factors for rupture of an ectopic pregnancy to help physicians identify those women who are at greatest risk. MATERIALS AND METHODS: The study group comprises the cases of ectopic pregnancy who were treated in the gynecologic department of the General Hospital "George Gennimatas" in Athens, Greece, from January 1988 to December 2006. The following parameters were retrospectively examined: rupture status, past history of pelvic infection or ectopic pregnancy, use of IUCD, operations for infertility treatment/tubal surgery, parity and gestational age. The study group was divided into two subgroups: ruptured ectopic pregnancies and unruptured ectopic pregnancies. Where appropriate, Student's t test, Mann-Whitney-Wilcoxon test for independent samples, Pearson's chi-square and Fisher's exact test were applied. Statistical analysis was performed with STATA 8.0 statistical software. RESULTS: Two hundred and twenty-three cases of ectopic pregnancy were retrieved in the studied period. One hundred and forty-four (65%) of them were cases with ruptured ectopic pregnancies and 79 (35%) were cases with unruptured ectopic pregnancies. Fifty-five of the 144 patients (38.2%) with ruptured ectopic pregnancy and 18 of the 79 (22.8%) patients with unruptured ectopic pregnancy had a past history of ectopic pregnancy (P = 0.019, Pearson's chi-square). Moreover, there was a statistically significant positive association between rupture and parity (1.19 +/- 1.02 for ruptured cases vs. 0.85 +/- 0.89 for unruptured cases; P = 0.015, Mann-Whitney-Wilcoxon test for independent samples). A positive association of borderline significance existed between rupture and gestational age (53.9 +/- 4.7 vs. 52.9 +/- 4.9 days; P = 0.093, Mann-Whitney-Wilcoxon test for independent samples). No statistically significant associations were found concerning past history of pelvic infection, use of IUCD and operations for infertility treatment-tubal surgery. CONCLUSIONS: Previous history of ectopic pregnancy and parity seem to be significant risk factors for rupture of an ectopic pregnancy.

Drug abuse-related emergency calls: a metropolis-wide study.

INTRODUCTION: Drug abuse is an important sociomedical problem in large metropolitan areas. Drug addicts represent a group with particularities, since they hesitate to seek medical care and often refuse hospitalization. Therefore, there is a scarcity of data on drug abuse-related calls. The burden imposed by such calls on emergency health services has not been evaluated in detail. OBJECTIVES: The objectives of this study are to: (1) assess the profile of drug abuse-related calls in a large European metropolis, including the spatiotemporal distribution, as well as the frequency and variability of cancellations; and (2) evaluate the mobilization of emergency prehospital care services in response to the calls. METHODS: In 2005, the Hellenic National Centre for Emergency Care received 5,836 emergency drug abuse-related calls pertaining to the metropolitan area of Athens, Greece. The analysis focused on: (1) spatiotemporal features of calls/cases; (2) step-by-step cancellation rates in the mobilization of ambulances or other means (mobile intensive care units, specially equipped motorcycles, and super-mini city cars); and (3) response time of the mobilized means. Pearson's chi-square, goodness-of-fit chi-square, and the Kruskal-Wallis tests were used as appropriate. RESULTS: Drug abuse-related calls represented 2% of all emergency calls. Only one-third of these cases were transported to the Accident and Emergency Departments of area hospitals. A total of 9% of the calls were cancelled before transportation arrived; another 20% of victims could not be found when authorities arrived on-scene, and 36% of patients refused transport to the hospital. The cancellation rate is significantly higher in the evening and at night, as well as in summer and autumn. The major burden is imposed on the municipality of Athens (67% of all calls). CONCLUSIONS: Drug abuse-related calls represent a significant load for emergency medical services in metropolitan Athens. However, a relatively small percentage of the drug addicts finally are transported to the hospital. Appropriately equipped motorcycles seem to be an effective means for the prehospital management of drug-abuse cases.