Thyroid evaluation of hospitalized psychiatric patients: the role of TSH screening for thyroid dysfunction

Factors related to the length of stay for major depressive disorder patients in China: A real-world retrospective study

Background

As numerous patients with depression have to be hospitalized because of various reasons, the demand far exceeds the limited bed count in the psychiatry department. Controlling the length of stay (LOS) of the patient is gradually being considered an effective method to alleviate this problem. Given the lack of statistical evidence of the LOS of patients with major depressive disorder (MDD) in China and the strain on the limited psychiatric resources, the purpose of our study was to investigate the LOS of patients with MDD among in-patient samples and to analyze related factors of the LOS in China by building a regression model.

Method

The data were exported from the electronic medical record system. A total of three categories of independent variables were enrolled in our study, namely, demographic, clinical, and biochemical. Univariate analysis and binominal regression analysis were applied comprehensively to find the factors related to the LOS among MDD samples. The discrimination accuracy of the model was evaluated by the receiver operating characteristic (ROC) analysis. ROC analysis indicated that the discrimination accuracy of our model was acceptable (AUC = 0.790, 95% CI = 0.714–0.865, P < 0.001).

Result

A total of 254 patients were finally brought into analysis after filtering. Regression analysis indicated that abnormal LDL was the only risk factor of long LOS (OR = 3.352, 95% CI = 1.087–10.337, P = 0.035) among all the kinds of variables. Notably, in the statistically irrelevant factors of the LOS, the category of anti-depressant drugs [serotonin–norepinephrine reuptake inhibitor (SNRI) or selective serotonin reuptake inhibitor (SSRI)] prescribed to patients with MDD was not associated statistically with the LOS, which was against our initial hypothesis that the LOS of patients with MDD treated with SNRI would vary from that of the patients treated with SSRI.

Conclusion

Up to our knowledge, our research is the first study to show the potential factors related to the LOS from various domains, especially biochemical indexes, and the effect of drugs, among clinical patients with MDD in China. Our results could provide a theoretical reference for efficient psychiatry hospitalization management and prioritization of allocating medical resources. Future studies are required for updating independent variables which are potentially related to the LOS and verifying existing results in a larger sample.

A rare storm in a psychiatric ward: thyroid storm

We present the case of a previously healthy man in whom acute psychosis masked the major symptomatology of thyroid storm. This patient highlights the importance of taking into consideration a life-threatening condition, thyroid storm, in the differential diagnosis of acute psychosis, even in the absence of a history of thyrotoxicosis.

Neurobehavioral and psychological changes induced by hyperthyroidism: diagnostic and therapeutic implications

Clinical studies have demonstrated that neuropsychiatric symptoms may be common and often the only symptoms of patients affected by hyperthyroidism. The correct diagnosis of hyperthyroidism is crucial for optimal treatment because the neuropsychiatric symptoms tend to parallel resolution as the biochemical parameters of hyperthyroidism are normalized. For these reasons, a routine evaluation in every patient consulting for emotional pathologies is recommended, independent of other manifestations of thyroid disease. The effect of high levels of thyroid hormones in the CNS has been related to changes in the presence of alpha- and beta-adrenergic postsynaptic receptors, or more recently to changes in the serotonin concentration. However, the available information is incomplete and many questions remain to be answered in order to explain how the thyroid hormone modifies the CNS response. Increased knowledge of the molecular targets (i.e., genes) of thyroid hormones in the brain may help to provide an answer to these questions.

High prevalence of thyroid abnormalities in a Chilean psychiatric outpatient population

The aim of the present study was to establish the prevalence of thyroid disturbances in patients consulting for panic and mood disorders. These data may be relevant because thyroid functional alterations affect the success of treatment in these pathologies. We studied prospectively 268 psychiatric outpatients (204 females and 64 males) diagnosed by DSM-IV criteria. We excluded patients with addictive disorders and major medical disease. We measured TSH, Free T4 (FT4) and antimicrosomal antibodies (AMA). We diagnosed classical hypothyroidism when the TSH value was >10 microUI/ml (NV=0.25-4.3) and subclinical hypothyroidism when the TSH value was between 5-10 microUI/ml. Hyperthyroidism was diagnosed when FT4 >1.4 (NV=0.8-1.4), the TSH suppressed and the radioiodine uptake >20% (NV=5-15). Positive antimicrosomal antibodies (AMA) titres were >1:100 dilution. Hypothyroidism was diagnosed in 26/268 patients (9.7%); 10 cases corresponded to the classical form (38.5%) and 16 cases to the subclinical form (61.5%). Hyperthyroidism was found in 6/268 patients (2.2%). Normal thyroid function with positive AMA was found in 28/268 patients (10.4%). Hypothyroidism was more common in patients with mood disorders, and hyperthyroidism in patients with panic disorders. Patients with panic disorder had significant higher levels of FT4. The prevalence of positive AMA, hypothyroidism and hyperthyroidism was higher in women than men. We found a high frequency of thyroid abnormalities in a psychiatric outpatient population. These data suggests that routine evaluation of thyroid function should be considered in patients consulting for mood and panic disorders.

Gender differences in the recognition of depression in old age

OBJECTIVE

The study should answer the question of whether identical symptom presentations of depression in male and female patients leads to similar recognition rates in primary care.

METHOD

We performed a survey in primary care. Two written case vignettes were presented to 170 family physicians in a face-to-face interview which took place in their practices. The case vignettes described either a mildly depressed otherwise healthy old patient (case 1) or a severely depressed patient with somatic comorbidity (case 2). For each case different versions with regard to patients' gender were used: in case 1 only the gender of the patient varied; in case 2 both the gender and the anamnesis (stroke/hypothyroidism) varied. Afterwards the interviewers asked standardised open questions. The physicians were not aware of the mental health focus and the gender focus of the study.

RESULTS

The study is representative with a response rate of 77.6%. For primary diagnosis, the female versions were given the diagnosis of depression more often. There was a non-significant trend that female physicians considered depression more often.

CONCLUSION

The results show that gender-related experience and stereotypes on the physicians' side influence the diagnosis of (old age) depression in primary care. Further studies should elucidate the influence of the physicians' gender on the management of psychiatric disorders.