Does the "Silver bullet" lose its shine over the time? Assessment of loss of lithium response in a preliminary sample of bipolar disorder outpatients

Nicola Veronese, Iasevoli, Nicola Veronese, Giampaolo Perna, Stubbs, Solmi, De Bartolomeis, Michele Fornaro, De Berardis, Carano

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9 Citazioni (Scopus)


Background: Though often perceived as a "silver bullet" treatment for bipolar disorder (BD), lithium has seldom reported to lose its efficacy over the time. Objective: The aim of the present study was to assess cases of refractoriness toward restarted lithium in BD patients who failed to preserve maintenance. Method: Treatment trajectories associated with re-instituted lithium following loss of achieved lithium-based maintenance in BD were retrospectively reviewed for 37 BD-I patients (median age 52 years; F: M=17: 20 or 46% of the total) over an 8.1-month period on average. Results: In our sample only 4 cases (roughly 11% of the total, of whom F: M=2: 2) developed refractoriness towards lithium after its discontinuation. Thirty-three controls (F: M=15: 18) maintained lithium response at the time of re-institution. No statistically significant difference between cases and controls was observed with respect to a number of demographic and clinical features but for time spent before first trial ever with lithium in life (8.5 vs. 3 years; U=24.5, Z=-2.048, p=.041) and length of lithium discontinuation until new therapeutic attempt (5.5 vs. 2 years; U=8, Z=-2.927, p=.003) between cases vs. controls respectively. Tapering off of lithium was significantly faster among cases vs. controls (1 vs. 7 days; U=22, Z=-2.187), though both subgroups had worrisome high rates of poor adherence overall. Conclusion: Although intrinsic limitations of the present preliminary assessment hamper the validity and generalizability of overall results, stating the clinical relevance of the topic further prospective research is warranted. The eventual occurrence of lithium refractoriness may indeed be associated with peculiar course trajectories and therapeutic outcomes ultimately urging the prescribing clinicians to put efforts in preserving maintenance of BD in the absence of any conclusive research insight on the matter. © Fornaro et al.
Lingua originaleEnglish
pagine (da-a)142-157
Numero di pagine16
RivistaClinical Practice and Epidemiology in Mental Health
Stato di pubblicazionePublished - 2016

All Science Journal Classification (ASJC) codes

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