A case report of pulmonary embolism during electroconvulsive therapy and its further application after somatic stabilization

Electroconvulsive therapy, catatonia, deep vein thrombosis and anticoagulant treatment: a case report

Electroconvulsive therapy (ECT) is considered an effective treatment for pharmacotherapy-resistant severe mental disorders. Catatonia is a complex syndrome characterised by important psychomotor disturbances. Deep vein thrombosis (DVT) and pulmonary embolism (PE) are frequent side effects of prolonged immobility in catatonic patients. Therefore, it is important to resolve the catatonia as soon as possible. ECT is the most effective therapy available and is generally considered a safe procedure. Nevertheless, its use in patients with DVT or PE and anticoagulant treatment remains controversial. We describe a case of a woman in her 40s with a previous diagnosis of bipolar disorder and dysfunctional personality traits. She was hospitalised with persecutory and reference delusions, high emotional lability, anxiety, somatisation and regressive conduct. She later developed catatonic symptoms. No progress was achieved after a month of hospitalisation, despite several pharmacological treatments. She suffered multiple complications of prolonged bedding, such as an extensive DVT of the left common femoral, the external iliac and the common iliac veins. ECT was conducted under treatment with bemiparin. After the third administration, she showed improvement. No major bleeding or PE was developed. The safety of ECT while receiving anticoagulant therapy has been documented, though dosage and type of anticoagulant must be considered. Location of DVT (proximal or distal) may be an important topic to take into account. This report provides further evidence about the efficacy and safety of undergoing ECT in the context of concomitant serious medical conditions, such as DVT and anticoagulant therapy administration.

Severity of Depressive Symptoms is Associated with Venous Thromboembolism in Hospitalized Patients with a Major Depressive Episode

PURPOSE

A major depressive episode is a risk factor for venous thromboembolism (VTE) in psychiatric inpatients. However, it is unclear whether the severity of depressive symptoms or duration of the current depressive episode is associated with VTE. Further, the VTE prevalence among hospitalized patients with a major depressive episode receiving electroconvulsive therapy is unknown. This retrospective study examined factors associated with VTE among hospitalized patients with a major depressive episode and estimated the prevalence of VTE in such patients who underwent electroconvulsive therapy.

PATIENTS AND METHODS

Patients with a major depressive episode hospitalized in the Department of Neuropsychiatry at Akita University Hospital between January 2018 and December 2020 were included. Data from the first week of hospitalization were extracted from medical records. VTE was diagnosed based on the findings of computed tomography. To evaluate whether the severity of depressive symptoms or duration of the current depressive episode was associated with VTE, logistic regression analysis was conducted after adjusting for covariates with known VTE risk factors (antidepressants, antipsychotics, and physical comorbidities).

RESULTS

We analyzed 133 patients; of these, 14 were diagnosed with asymptomatic VTE. The severity of depressive symptoms (odds ratio: 1.220, 95% confidence interval: 1.081-1.377, p = 0.001) was significantly associated with VTE. The prevalence of VTE among those receiving electroconvulsive therapy was 35% (7/20).

CONCLUSION

The prevalence of VTE was 35% among patients receiving in-hospital electroconvulsive therapy for a major depressive episode. VTE should be considered for hospitalized patients with severe depressive symptoms and patients receiving in-hospital electroconvulsive therapy for a major depressive episode.