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Biomedical subjects

P M Haddad

Publications and source records attributed to P M Haddad.

At least 19 recordsLinked to original sources
PubMed2005

Aripiprazole in schizophrenia: consensus guidelines.

Schizophrenia is a chronic disabling disease which in the majority of cases requires long-term treatment with antipsychotic medication. Before the development of atypical antipsychotics, treatment choice was restricted to conventional (or typical) antipsychotics, which are known to cause a range of side effects including extrapyramidal symptoms. Although atypical agents provide a favourable alternative (advocated by the National Institute of Clinical Excellence in the UK), they are associated with side effects. These differ between agents, but can include weight gain, sedation and hyperprolactinaemia. Aripiprazole is a newly available atypical antipsychotic for the treatment of schizophrenia. With the apparent imitations of currently available medications, aripiprazole provides clinicians with another treatment option. The purpose of these guidelines is to outline the consensus reached by the Schizophrenia Innovation Working Group on best practice in prescribing and appropriate use of aripiprazole in the UK.

Antipsychotic Agents↗
PubMed2005

Neonatal symptoms following maternal paroxetine treatment: serotonin toxicity or paroxetine discontinuation syndrome?

We report a case of neonatal symptoms of irritability, increased tonus and convulsions after in-utero exposure to paroxetine 30 mg/day. The infant's symptoms commenced on the first day after birth and persisted for 10 days. Paroxetine levels were undetectable on day 6. Extensive investigations excluded infective and metabolic causes. Serotonin toxicity due to paroxetine seems the most likely mechanism, though an important differential diagnosis is a paroxetine discontinuation (withdrawal) syndrome. Differentiating between these two syndromes in the neonate presents a dilemma for clinicians. Irrespective of the mechanism, we recommend that all neonates exposed to antidepressants, particularly serotonin reuptake inhibitors (SSRIs), during the last trimester should be followed-up closely for adverse symptoms commencing in the first 10 days after birth. The possibility of such symptoms needs to be discussed with women who are considering starting or continuing antidepressant treatment in pregnancy. All neonatal adverse drug events should be reported to a pharmacovigilance centre. Further research is warranted.

Adult↗
PubMed2003

Antipsychotic-induced hyperprolactinaemia in women: pathophysiology, severity and consequences. Selective literature review.

BACKGROUND: Hyperprolactinaemia has for decades been an inevitable and neglected side-effect of antipsychotic medication. The recent introduction of prolactin-sparing antipsychotic agents makes a re-examination of this problem timely. AIMS: To review the literature on antipsychotic-induced hyperprolactinaemia and its consequences. METHOD: A search was made of the Medline database (1966-2002) for key articles, supplemented by cross-referencing. RESULTS: During antipsychotic treatment prolactin concentrations can rise to ten times normal levels or above, and existing data indicate that 17-78% of female patients have amenorrhoea with or without galactorrhoea. Survey data, however, suggest that clinicians underestimate the prevalence of these conditions. Long-term consequences of antipsychotic-related hypo-oestrogenism require further research but are likely to include premature bone loss. CONCLUSIONS: Antipsychotic-induced hyperprolactinaemia should become a focus of interest in the drug treatment of psychiatric patients.

Antipsychotic Agents↗
PubMed2001

Antidepressant discontinuation (withdrawal) symptoms presenting as 'stroke'.

We report two patients who developed a severe discontinuation (withdrawal) reaction following stoppage of paroxetine and venlafaxine, respectively. Neurological symptoms were prominent and neither patient could walk unaided. Both patients feared they had suffered a 'stroke' and arranged an emergency medical consultation. One patient was correctly diagnosed, the antidepressant was recommenced and symptoms resolved within 24 h. Failure to recognize the reaction resulted in the other patient being referred to a neurologist, undergoing a computed tomography brain scan and an electroencephalogram and remaining symptomatic for over 8 weeks. Relevant pharmacological issues are discussed. The cases illustrate the importance of patients and clinicians being familiar with antidepressant discontinuation symptoms.

Adult↗
PubMed2001

Antipsychotic induced hyperprolactinaemia: a series of illustrative case reports.

Hyperprolactinaemia is a common side-effect of many antipsychotic drugs but, in comparison to extrapyramidal side-effects, it has received little attention. Four case reports are presented which illustrate important clinical and pharmacological aspects of the syndrome. Two of the cases were caused by conventional antipsychotic drugs and two by risperidone, an atypical antipsychotic. Symptoms included gynaecomastia, galactorrhoea, amenorrhoea and sexual dysfunction. Three patients were switched to a prolactin sparing antipsychotic leading to normalization of serum prolactin and resolution of the symptoms. Patients prescribed prolactin elevating antipsychotics should, where possible, have this issue explained to them prior to commencing treatment and be screened for symptoms suggestive of hyperprolactinaemia before starting treatment and regularly thereafter.

Adult↗
PubMed2001

Antidepressant discontinuation syndromes.

Discontinuation symptoms are recognised with tricyclic antidepressants, monoamine oxidase inhibitors, selective serotonin reuptake inhibitors (SSRIs) and miscellaneous antidepressants. A wide variety of symptoms have been described, differing somewhat between antidepressant classes, and several symptom clusters or discontinuation syndromes appear to exist. A common feature is onset within a few days of stopping the antidepressant or, less commonly, reducing the dosage. Discontinuation syndromes are clinically relevant as they are common, can cause significant morbidity, can be misdiagnosed leading to inappropriate treatment and can adversely effect future antidepressant compliance. Preventative strategies include tapering antidepressants prior to stoppage and educating patients and healthcare professionals to ensure that antidepressants are taken consistently and not stopped abruptly. Most reactions are mild and short-lived and require no treatment other than patient reassurance. Severe cases can be treated symptomatically or the antidepressant can be reinstated before being gradually withdrawn. Reinstatement usually leads to symptom resolution within 24 hours. Some individuals require very conservative tapering schedules to prevent the re-emergence of symptoms. With SSRIs and venlafaxine another strategy to consider is switching to fluoxetine, which may suppress the discontinuation symptoms, but which has little tendency to cause such symptoms itself. Neonatal discontinuation symptoms can follow maternal use of antidepressants during pregnancy and possibly breast feeding. The patient and doctor must take this into consideration when making prescribing decisions. Discontinuation symptoms have received little systematic study with the result that most of the recommendations made here are based on anecdotal data or expert opinion. Research is needed to provide a firm evidence base for future recommendations.

Animals↗
PubMed2000

Misdiagnosis of antidepressant discontinuation symptoms.

OBJECTIVE: To demonstrate that when antidepressants are switched, discontinuation symptoms from the first antidepressant may be misdiagnosed as adverse effects of the second antidepressant. METHOD: Single case report. RESULTS: A female patient was switched from paroxetine to dothiepin due to lack of efficacy. Over the next week she developed physical symptoms which she and her doctor regarded as side effects of dothiepin. It was decided to change the dothiepin and a second opinion was obtained regarding a suitable alternative. At that point it was realized that her symptoms represented a paroxetine discontinuation syndrome. The patient was reassured and continued dothiepin. The discontinuation symptoms resolved over the next 3 weeks and her depression subsequently remitted. CONCLUSION: Increased professional awareness of discontinuation symptoms is necessary to prevent misdiagnosis and inappropriate treatment.

Antidepressive Agents, Second-Generation↗
PubMed1993

Sexual abuse of the elderly mentally ill.

Sexual abuse of the elderly may occur more commonly than is recognized. Reasons for the neglect of this area and possible risk factors are discussed. A definition of elder sexual abuse is proposed, and four case histories, each of which raises various issues about the nature, detection and management of sexual abuse, are described. In the absence of procedures for dealing with elder sexual abuse, professional staff need to be open to its occurrence and to be prepared to carry out thorough, sympathetic, collaborative assessments of both parties involved where it is suspected.

Aged↗
PubMed1993

Ganser syndrome followed by major depressive episode.

A case of complete Ganser syndrome resolved after one week, but was immediately followed by a major depressive episode. The two disorders had a common cause, which is best encapsulated in a psychodynamic formulation.

Adult↗
PubMed1992

Visual hallucinations as the presenting symptom of senile dementia.

A case of senile dementia that initially presented with complex visual hallucinations in the absence of clinical cognitive impairment or other psychopathology is described. Dementia must be added to the differential diagnosis of isolated visual hallucinations in the elderly.

Aged↗
PubMed1992

Propofol and ECT.

Explore the source record for details and available documents.

Anesthesia, General↗
PubMed1992

Hyperkinetic syndrome and disruptive early experiences.

Five children aged 8-10 years presenting to child psychiatric clinics with hyperkinetic syndrome and severe disruptive early experiences are described. At referral all had been living in stable families for a minimum of four years. Biological risk factors were absent. It is proposed that the disruption of early attachments resulted in ill-regulated search and exploratory behaviour and that this had a continuing effect on the children's ability to focus and control attention skills and motor behaviour.

Adolescent↗