Bidirectional Links Between Anxiety and Hypertension
A case study published in Frontiers in Psychiatry describes a 61-year-old male with 26-year refractory hypertension who developed severe generalized anxiety disorder following thyroid surgery. Despite triple antihypertensive therapy (nifedipine, arotinolol, sacubitril/valsartan), his blood pressure remained uncontrolled at 176/105 mmHg while his anxiety severity measured 36 on the Hamilton Anxiety Rating Scale (HAMA). The underlying condition involved endocrine disruption from thyroidectomy, marked elevation of stress hormones (ACTH 99.9 pg/mL, cortisol 18.7 µg/dL, both abnormally high), and heart rate variability findings indicating autonomic nervous system dysregulation.
Integrated Treatment Approach
The patient underwent a multimodal treatment combining pharmacotherapy (escitalopram and tandospirone), transcranial magnetic stimulation (9 sessions), biofeedback training (14 sessions), psychotherapy, and lifestyle interventions during a two-week hospitalization. During this period, his mean blood pressure decreased substantially to 125/72 mmHg, anxiety scores dropped to HAMA 7, and his stress hormone levels normalized.
At six-month follow-up, sustained improvement persisted: blood pressure stabilized at 131/77 mmHg with a 50% reduction in antihypertensive dosages, and psychiatric assessments showed HAMA scores of 3. The case demonstrates how thyroidectomy-induced thyroid hormone dysregulation triggered both conditions through interconnected neuroendocrine and autonomic pathways. The authors note that abrupt discontinuation of an SSRI medication one year prior had likely contributed to BP instability through serotonin-receptor mediated vascular effects.
Clinical Implications
The case underscores the self-perpetuating cycle linking these conditions: chronic anxiety exacerbates hypertension through sympathetic nervous system hyperactivity and hypothalamic-pituitary-adrenal axis dysregulation, while uncontrolled hypertension amplifies anxiety through physiological burden. The integrated approach targeting shared neurobiological pathways successfully disrupted this cycle, suggesting the importance of coordinated mental health and cardiovascular care in treatment-resistant cases.
This article is an AI-assisted summary. All facts and figures are drawn from the original report: https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2025.1600910/full