Biomedical subjects

Roger S McIntyre

Publications and source records attributed to Roger S McIntyre.

39 records · Page 3Linked to original sources

PubMed2002

Psychotropic drugs and adverse events in the treatment of bipolar disorders revisited.

Psychopharmacology research aims to expand the therapeutic ratio between efficacy, on the one hand, and adverse events and safety, on the other. The novel antipsychotics are now the antipsychotics of choice in the treatment of bipolar disorders. They have the advantages of potential antidepressant properties and low risks of extrapyramidal side effects and, especially, of tardive dyskinesia. However, novel antipsychotics may also have varying propensities to cause side effects, such as somnolence, hyperprolactinemia, weight gain (sometimes significant), and possibly diabetes mellitus. The increasing use of these novel agents requires careful assessment and monitoring of emergent side effects and diligent consideration of associated medical complications. Two new anticonvulsants, lamotrigine and topiramate, have recently shown promise in the treatment of bipolar disorders. Most of their adverse effects can be avoided by slow titration toward the recommended doses. In contrast to carbamazepine and valproic acid, topiramate may be associated with weight loss.

Anticonvulsants↗

PubMed2002

Reboxetine: a preliminary report on its use through the Special Access Program.

OBJECTIVE: To describe the effectiveness and tolerability of reboxetine under Special Access Program conditions in Canada in a group of patients with refractory depressive disorders. DESIGN: Retrospective open-label study. SETTING: Six clinical academic settings in Canada, primarily tertiary institutional settings. PATIENTS: Twenty-six female and 19 male outpatients with depressive disorders, primarily unipolar depression. Most of the patients were treatment resistant. INTERVENTION: Reboxetine through the Special Access Program. OUTCOME MEASURE: Severity of depression before treatment with reboxetine was retrospectively assessed with the Clinical Global Impression (CGI) Global Severity Scale; change with treatment was evaluated with the CGI Global Improvement Scale. RESULTS: Before reboxetine treatment, 20 (44%) patients scored in the moderate CGI severity category, 11 (24%) in the marked category and 12 (27%) in the severe category. The dose range for reboxetine was 2-16 mg, with 40 (89%) patients in the 4-10 mg range. With reboxetine treatment, 25 (56%) patients were considered "very much improved" or "much improved"; 8 (18%) patients were "minimally improved"; 7 (16%) received ratings that reflected "no change" or minimal worsening, and 5 (11%) were rated as "much worse" or "very much worse." CONCLUSIONS: Reboxetine was effective at a clinically meaningful level in decreasing severity of depression in 56% of patients. Given the high rate of prior resistance to other antidepressant therapies, there is a definite role for this agent in the treatment of depressive disorders.

Adrenergic Uptake Inhibitors↗

PubMedDate not supplied

Bipolar disorder and diabetes mellitus: epidemiology, etiology, and treatment implications.

INTRODUCTION: Bipolar disorder (BD) is a highly prevalent and disabling condition with significant mortality risk from suicide and other unnatural causes. This ignominious description is alongside recent observations that the majority of excess deaths in BD are secondary to medical comorbidity. The medical burden in BD is associated with a clustering of risk factors (e.g., obesity, smoking, unhealthy dietary habits) and inadequate utilization of preventative and primary healthcare. Diabetes mellitus (DM) is also a prevalent multifactorial disease which imparts substantial illness burden. Preliminary investigations indicate that patients who suffer from BD with comorbid DM have a more severe course and outcome, lower quality of life, higher prevalence of medical comorbidity and higher cost of illness. METHODS: We conducted a MedLine search of all English-language articles 1966-2004 using the key words: bipolar disorder, major depressive disorder, diabetes mellitus, glucose metabolism, mortality, overweight, obesity, body mass index. The search was supplemented with manual review of relevant references. Priority was given to randomized controlled data, when unavailable; studies of sufficient sample size are presented. RESULTS: Subpopulations of BD patients should be considered at high risk for DM. The prevalence of DM in BD may be three times greater than in the general population. CONCLUSIONS: Bipolar disorder populations may be an at-risk group for glucose metabolic abnormalities. Opportunistic screening and vigilance for clinical presentations suggestive of DM is encouraged.

Adolescent↗