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- Bengtsson, Johan, et al.
(author)
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Ambulatory Heart Rate Variability in Schizophrenia or Depression : Impact of Anticholinergic Burden and Other Factors
- 2021
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In: Journal of Clinical Psychopharmacology. - 0271-0749 .- 1533-712X. ; 41:2, s. 121-128
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Journal article (peer-reviewed)abstract
- BACKGROUND: Heart rate variability (HRV) has been found reduced in patients with schizophrenia and depression. However, there is a lack of knowledge on how demographic, lifestyle, and pharmacological factors contribute to the reduction in HRV in these patients.METHODS: We recruited 37 patients with schizophrenia, 43 patients with unipolar depression, and 64 healthy controls. A combined chest-worn HRV and accelerometer device was used in an ambulatory measurement. Age, sex, anticholinergic burden of medication, nicotine use, body mass index, and ongoing physical activity were assessed in multiple regression models regarding their influence on HRV, measured as the standard deviation of all the RR intervals (SDNN).RESULTS: In the fully adjusted model, schizophrenia (β = -0.23, P = 0.019), depression (β = -0.18, P = 0.028), age (β = -0.34, P < 0.000), ongoing physical activity (β = -0.23, P = 0.001), and anticholinergic burden (β = -0.19, P = 0.025) influenced SDNN negatively. Sex, nicotine use, and BMI had negligible effects on SDNN.CONCLUSIONS: We show for the first time that a quantified score of anticholinergic burden of medication has a negative relationship to HRV in patients with schizophrenia or depression, but that the diagnoses themselves still exhibit an effect on HRV.
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| 2. |
- Rask, Susanna Maria, et al.
(author)
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Clozapine-Related diarrhea and Colitis : report of 4 cases.
- 2020
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In: Journal of Clinical Psychopharmacology. - : Lippincott Williams & Wilkins. - 0271-0749 .- 1533-712X. ; 40:3, s. 293-296
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Journal article (peer-reviewed)abstract
- Background: During clozapine treatment, diarrhea is a rare but clinically relevant adverse effect. Cases of microscopic colitis and eosinophilic colitis have been previously reported.Procedures: We present 4 patients who developed severe diarrhea in early weeks of clozapine therapy.Findings: Two patients had significant peripheral eosinophilia 1 week after diarrhea symptoms. One of these patients also had Charcot-Leyden crystals in stool afterward, confirming the presence of eosinophils in the gut lumen. One of our patients had a confirmed microscopic colitis and later also neutropenia, which required treatment.Conclusions: Charcot-Leyden crystals in stool may be associated with concurrent diarrhea and eosinophilia during clozapine treatment, which is a previously unreported finding. Occurrence of blood dyscrasias with diarrhea symptoms during clozapine treatment needs further investigation to understand the possible shared mechanisms.
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