Overview
Crocodile tears syndrome, also known as pseudobulbar affect, is characterized by involuntary episodes of crying or laughing that are incongruent with the patient's emotional state, often observed in neurological conditions affecting motor pathways. 2Diagnosis
Clinical presentation of involuntary emotional expressions (crying or laughing) out of context.
Often associated with underlying neurological disorders such as stroke, brain injury, or neurodegenerative diseases.
No specific diagnostic tests; diagnosis is primarily clinical based on patient history and neurological examination. 2Management
Treatment focuses on managing underlying conditions and symptom relief.
Pharmacological options include tricyclic antidepressants (e.g., nortriptyline) and selective serotonin reuptake inhibitors (SSRIs) at standard doses.
Botulinum toxin type B has shown efficacy in some cases for severe involuntary movements. 2Special Populations
No specific evidence provided in the abstracts regarding pregnancy, pediatrics, elderly, or comorbidities related to crocodile tears syndrome. 12Key Recommendations
Identify and manage underlying neurological conditions to potentially alleviate symptoms. (Evidence: Moderate) 2
Consider pharmacological interventions such as tricyclic antidepressants or SSRIs for symptom management. (Evidence: Moderate) 2
Evaluate the use of botulinum toxin type B for severe cases of involuntary emotional expressions. (Evidence: Weak) 2References
1 Macnaught ES, Dangerfield L, de Vroome MA, Venkatesha V, Antcliff D, Catling CJ. Evaluating Virtual Reality as a feasible and acceptable learning strategy in midwifery and obstetrics using a birthing simulation. Women and birth : journal of the Australian College of Midwives 2026. link
2 Buenviaje GN, Ladds PW, Melville L, Manolis SC. Disease-husbandry associations in farmed crocodiles in Queensland and the Northern Territory. Australian veterinary journal 1994. link