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<p class="ltrs-br-ltr-br-title"><span class="bold">Resolution of Suicidal Ideation With Corticosteroids in a Patient With Concurrent Addison’s Disease and Depression</span></p>
<p class="ltrs-br-ltr-br-body-text"><span class="semibold">To the Editor:</span> Neuropsychiatric disturbances in Addison’s disease are often reported,<span class="htm-cite"><a href="#ref1">1–11</a></span> but rarely recognized in clinical practice.<span class="htm-cite"><a href="#ref9">9</a></span> Neuropsychiatric manifestations may often be the initial or sole presenting symptom in many cases of Addison’s disease.<span class="htm-cite"><a href="#ref4">4–8</a>,<a href="#ref10">10</a>,<a href="#ref11">11</a></span> We report a case of concurrent severe depression and Addison’s disease in which depressive symptoms resolved after a single administration of high-dose corticosteroids.</p>
<p class="ltrs-br-ltr-br-body-text">&nbsp;</p>
<p class="ltrs-br-ltr-br-body-text"><span class="semibold-ital">Case report.</span> Ms A, a 70-year-old woman with atrial fibrillation, hypertension, diabetes mellitus type II, depression, and adrenal hyperplasia status post–bilateral adrenalectomies, developed postoperative Addison’s disease requiring maintenance corticosteroids and presented with several months of generalized weakness, failure to thrive, and poor oral intake. Her symptoms were attributed to inadequate treatment of adrenal insufficiency. In addition, she reported worsening depression in the months preceding her hospital admission, with symptoms of helplessness, poor appetite, psychomotor retardation, hypersomnia, and poor concentration, as well as suicidal ideation. The psychiatry consult-liaison service evaluated Ms A and diagnosed her with depression per <span class="italic">DSM-IV</span> criteria; they planned to initiate venlafaxine. Prior to administration of the venlafaxine, Ms A received a single dose of dexamethasone 8 mg intravenous and hydrocortisone 20 mg intravenous, which led to rapid improvement in her depression. She reported remission of her depression with management of the adrenal insufficiency. Consequently, venlafaxine was not initiated.</p>
<p class="ltrs-br-ltr-br-body-text">&nbsp;</p>
<p class="ltrs-br-ltr-br-body-text">Addison’s disease is characterized by adrenal insufficiency due to reduced secretion of glucocorticoid by the adrenal glands.<span class="htm-cite"><a href="#ref9">9</a>,<a href="#ref12">12</a></span> Patients often present with chronic progressive fatigue, generalized weakness, loss of appetite, weight loss, and hypotension. The link between neuropsychiatric disturbance and Addison’s disease has been well-reported in the literature,<span class="htm-cite"><a href="#ref1">1–11</a></span> including by Thomas Addison in 1855, who described “attacks of giddiness, anxiety in the face, and delirium” as characteristics of the disease.<span class="htm-cite"><a href="#ref9">9</a></span> The prevalence of neuropsychiatric symptoms in Addison’s disease is estimated to be between 64% and 84%,<span class="htm-cite"><a href="#ref9">9</a></span> and in many cases, neuropsychiatric symptoms may be the initial or sole manifestation.<span class="htm-cite"><a href="#ref4">4–8</a>,<a href="#ref10">10</a>,<a href="#ref11">11</a></span></p>
<p class="ltrs-br-ltr-br-body-text">Multiple theories exist to explain how hypoadrenocorticism may precipitate neuropsychiatric disturbance.<span class="htm-cite"><a href="#ref1">1</a>,<a href="#ref3">3</a>,<a href="#ref9">9</a>,<a href="#ref13">13–15</a></span> Adrenal insufficiency causes electrolyte and metabolic abnormalities,<span class="htm-cite"><a href="#ref9">9</a>,<a href="#ref15">15</a></span> including hyponatremia, which may lead to cerebral edema with encephalopathy.<span class="htm-cite"><a href="#ref15">15</a></span> Adrenal insufficiency may also alter the electrical circuitry of the brain, as evidenced by electroencephalographic changes of diffuse slowing or bursts of activity with no cortical focus seen.<span class="htm-cite"><a href="#ref9">9</a></span> Finally, cortisol binds to receptors in the hippocampus that promote cognition, memory, and enhanced mood. Thus, lack of cortisol can lead to symptoms of depression.<span class="htm-cite"><a href="#ref16">16</a></span> The role of cortisol has been further supported by the finding of relative corticosteroid resistance in depressed patients.<span class="htm-cite"><a href="#ref14">14</a></span></p>
<p class="ltrs-br-ltr-br-body-text">To the authors’ knowledge, this is the first report of corticosteroids acutely improving depression in the setting of Addison’s disease. Previous case reports have described concurrent use of electroconvulsive therapy and corticosteroids to treat Addison’s disease; however, there are no reports of corticosteroids alone as a possible treatment modality.<span class="htm-cite"><a href="#ref17">17</a>,<a href="#ref18">18</a></span></p>
<p class="ltrs-br-ltr-br-body-text">Although the case suggests that corticosteroids may be of some benefit in treating depression with suicidal thoughts in the setting of adrenal insufficiency, the exact role remains unclear, especially for long-term treatment, warranting further investigation.</p>
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<p class="ltrs-br-ltr-br-body-text">&nbsp;</p>
<p class="ltrs-br-ltr-br-author"><span class="bold">Shinjini Kundu, MS</span></p>
<p class="ltrs-br-ltr-br-author"><span class="bold">Jodie Bryk, MD</span></p>
<p class="ltrs-br-ltr-br-author"><span class="bold">Abdulkader Alam, MD</span></p>
<p class="ltrs-br-ltr-br-author"><a href="mailto:al.alam@stonybrookmedicine.edu"><span class="hyperlink">al.alam@stonybrookmedicine.edu</span></a> </p>
<p class="ltrs-br-ltr-br-endmatter-fieldnotes"><span class="semibold-ital">Author affiliations:</span> School of Medicine, University of Pittsburgh (all authors); Department of Biomedical Engineering, Carnegie Mellon University (Ms Kundu); Departments of General Internal Medicine (Dr Bryk) and Psychiatry (Dr Alam), University of Pittsburgh Medical Center; and Western Psychiatric Institute and Clinic (Dr Alam), Pittsburgh, Pennsylvania.</p>
<p class="ltrs-br-ltr-br-endmatter-fieldnotes"><span class="semibold-ital">Potential conflicts of interest: </span>None reported.</p>
<p class="ltrs-br-ltr-br-endmatter-fieldnotes"><span class="semibold-ital">Funding/support:</span> None reported.</p>
<p class="ltrs-br-ltr-br-endmatter-fieldnotes"><span class="semibold-ital">Published online:</span> December 25, 2014.</p>
<p class="ltrs-br-ltr-br-copyright-doi"><span class="italic">Prim Care Companion CNS Disord 2014;16(6):</span><span class="doi">doi:10.4088/PCC.13l01578</span></p>
<p class="ltrs-br-ltr-br-copyright-doi"><span class="italic">© Copyright 2014 Physicians Postgraduate Press, Inc.</span></p>
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