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Dive into the research topics where Laurence M. Westreich is active.

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Featured researches published by Laurence M. Westreich.


Journal of Substance Abuse Treatment | 1999

Correlates of protracted homelessness in a sample of dually diagnosed psychiatric inpatients.

Daniel Leal; Marc Galanter; Helen Dermatis; Laurence M. Westreich

The authors assessed sociodemographic, drug use, and diagnostic correlates of protracted homelessness in a sample of 147 dually diagnosed patients who required admission to the hospital. When 58 patients with protracted homelessness, defined as continuous undomiciled status for over a year, were compared with 74 patients without protracted homelessness, significant differences were found with regard to diagnosis, employment status, criminality, Brief Psychiatric Rating Scale score on admission, and history of injection drug use. The results of a multiple logistic regression analysis confirmed that a history of injection drug use, current unemployment, and a diagnosis of schizophrenia were positively associated with a history of protracted homelessness. No significant relationships were obtained between protracted homelessness and demographics or chronicity of mental illness.


American Journal on Addictions | 1997

Perceived Social Support and Treatment Retention on an Inpatient Addiction Treatment Unit

Laurence M. Westreich; Caroline Heitner; Melissa Cooper; Marc Galanter; Philippe Guedj

The authors measured perceived social support among patients and their families as a predictor of retention in an inpatient addiction rehabilitation program. After detoxification from all substances of abuse, 66 sequentially admitted inpatients gave demographic and diagnostic information and completed scales of perceived social support from the program and their own families. Scales were completed at 7, 14, and 21 days. A total of 46 subjects completed the 21-day program, and 20 did not. Homeless status, initial weak perceived social support from family, and a relatively shorter history of crack-cocaine use were correlated with completion of the program. Patients with stronger connections to shelter and family were less likely to complete an inpatient addiction rehabilitation program. Patients who reported more years of crack-cocaine use were also less likely to complete the program. The authors discuss implications for treatment.


American Journal on Addictions | 1998

HIV Risk Factors in Dually Diagnosed Patients

David Sert Krakow; Marc Galanter; Helen Dermatis; Laurence M. Westreich

The authors examined correlates of HIV seropositivity in a sample of dually diagnosed inpatients. The subjects were 147 consecutively admitted patients to a specialized dual-diagnosis unit in a municipal hospital who were given a structured interview and HIV testing. The HIV seroprevalence was 19%, with women having a nearly fourfold increased risk of being HIV seropositive, as compared with men. Cocaine as drug of choice was also highly significant as a risk factor for HIV infection, independent of gender. This finding suggests that targeted prevention and education programs need to be developed for the dually diagnosed patient.


Recent developments in alcoholism : an official publication of the American Medical Society on Alcoholism, the Research Society on Alcoholism, and the National Council on Alcoholism | 1998

A Review of the Effects of Moderate Alcohol Intake on Psychiatric and Sleep Disorders

Ricardo Castaneda; Sussman N; Robert Levy; O'Malley M; Laurence M. Westreich

In this chapter we discuss the effects of moderate ethanol consumption on the treatment of psychiatric and sleep disorders. A review of the literature on the interactions of ethanol with neurotransmitters and psychotropic medications suggests that although ethanol affects the clinical course of psychiatric and sleep disorders by different mechanisms, it does so principally through perturbations it causes in the balance of central nervous system neurotransmitter systems, which may modify the clinical course of primary psychiatric and sleep disorders and undermine the therapeutic response to psychotropic medications. Neurotransmitter responses may also be manifested clinically by rebound phenomena, akin to a subsyndromal withdrawal, which affect sleep and precipitate anxiety and mood symptoms. In addition, ethanol also modifies the clearance and disposition of a variety of psychotropic metabolites and interferes with their clinical effectiveness. We recommend that most psychiatric patients, and all patients with sleep disorders, should abstain from even moderate ethanol use, as this may adversely affect their clinical course and response to treatment.


Journal of Substance Abuse Treatment | 1996

A modified therapeutic community for the dually diagnosed Greenhouse program at bellevue hospital

Laurence M. Westreich; Marc Galanter; Harold Lifshutz; Elizabeth Jamner Metzger; Charles H. Silberstein

Techniques used in therapeutic communities may be applicable to patients dually diagnosed with mental illness and a psychoactive substance use disorder (PSUD). This study was designed to evaluate the demographics, course, and outcome for 100 patients treated in one such residential program. One hundred indigent male patients admitted to a drug-free therapeutic community for the dually diagnosed were studied on admission and over the course of their treatment, and subjects were monitored throughout their stays on the basis of observed urine toxicology tests and a clinical assessment of drug or alcohol use. The mean age of the patients was 33.8 years, and the average length of stay was 121.0 days. Thirty-three of the patients completed the full 6-month program and moved on to another stable living environment. Only 12 patients had urine toxicologies positive for illicit drugs or alcohol while in the program. These findings support the possibility of applying the residential drug-free therapeutic community to dually diagnosed patients.


Comprehensive Psychiatry | 1995

Concurrent Cocaine Withdrawal Is Associated With Reduced Severity of Alcohol Withdrawal

Ricardo Castaneda; Harold Lifshutz; Laurence M. Westreich; Marc Galanter

The purpose of this study was to implement an empirical assessment of the clinical response to standard alcohol detoxification during withdrawal from both alcohol and cocaine. One hundred forty-nine males consecutively admitted in acute alcohol withdrawal to a hospital-based detoxification unit were studied. All subjects completed a 4-day chlordiazepoxide detoxification. Patients who used drugs other than cocaine were excluded. Fifty-five subjects withdrawing only from alcohol and 94 subjects withdrawing from both alcohol and cocaine, as evidenced by positive urinalysis and history, were studied. Both groups reported similar amounts of daily alcohol intake and had a similar age of onset of alcohol dependence. Parental alcoholism was equally frequent in both groups. Statistically, several variables were directly related to severity of alcohol withdrawal, including associated cocaine abuse, age, abnormal laboratory values, and duration of homelessness. As measured by the Alcohol Withdrawal Scale (AWS), alcohol withdrawal was less severe among cocaine users, not only at intake but throughout the 4-day detoxification. Singly addicted alcoholics were older and had longer drinking histories, more prior detoxifications, and more abnormal laboratory values than cocaine users. A multiple regression analysis demonstrated a significant relationship between cocaine and severity of alcohol withdrawal. Cocaine users more frequently requested reductions in chlordiazepoxide dosages than singly addicted alcoholics, complaining of dysphoria, sedation, and weakness. The severity of alcohol withdrawal was associated with recent cocaine use, age, laboratory abnormalities, and duration of homelessness. Concurrent cocaine withdrawal in the sample was associated with reduced severity of alcohol withdrawal. Possible neurobiological mechanisms, as well as study limitations affecting interpretation of the findings, are discussed. Tailored detoxification as opposed to standard detoxification regimens may be more appropriate for the clinical management of combined alcohol-cocaine withdrawal.


Postgraduate Medicine | 1995

PHYSICAL EXAMINATION OF SUBSTANCE ABUSERS : HOW TO GATHER EVIDENCE OF CONCEALED PROBLEMS

Laurence M. Westreich; Richard N. Rosenthal

Preview How can physicians make appropriate treatment decisions in substance abusers who have serious medical illness, especially when patients may not offer the information needed? Drs Westreich and Rosenthal summarize common physical findings that suggest abuse of specific substances. Recognizing these signs allows physicians to reliably diagnose chemical use, leads to improved outcomes, and lends weight to recommendations for substance-abuse therapy.


The Journal of Clinical Psychiatry | 1996

A review of the effects of moderate alcohol intake on the treatment of anxiety and mood disorders

Ricardo Castaneda; Norman L. Sussman; Laurence M. Westreich; Robert Levy; O'Malley M


American Journal on Addictions | 1997

Differences Between Men and Women in Dual-Diagnosis Treatment

Laurence M. Westreich; Philippe Guedj; Marc Galanter; Dawn Baird


American Journal on Addictions | 1996

A Preliminary Study of Therapeutic Alliance and Dually Diagnosed Inpatients

Laurence M. Westreich; Richard N. Rosenthal; J. Christopher Muran

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Norman L. Sussman

Baylor College of Medicine

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