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Updated: Aug 17, 2026

Endoscopic Approach for Colloid Cyst Resection
Published on: May 23, 2025
Intraventricular colloid cyst, hydrocephalus and neurogenic stunned myocardium
Adrian A Jarquin-Valdivia1, Austin T Rich, Jodie L Yarbrough
1Department of Neurology, Neurocritical Care Unit, Vanderbilt University Medical Center, 2100 Pierce Avenue MCS308, Nashville, TN 37212, USA. adrian.a.jarquin-valdivia@vanderbilt.edu
Insights
A colloid cyst caused hydrocephalus and cardiac arrest in a patient, leading to neurogenic stunned myocardium. This condition, characterized by cardiac dysfunction, can be fatal and is linked to increased intracranial pressure.
Area of Science:
- Neuroscience
- Cardiology
- Neurology
Background:
- Colloid cysts are rare tumors that can cause obstructive hydrocephalus.
- Neurogenic stunned myocardium is a form of cardiac dysfunction triggered by neurological events.
Observation:
- A case of a 33-year-old woman with a third ventricle colloid cyst presenting with hydrocephalus and cardiac arrest.
- The patient exhibited symptoms consistent with neurogenic stunned myocardium, including reduced ejection fraction and abnormal wall motion.
Findings:
- The patient's cardiac dysfunction resolved within a week after the acute event.
- Coronary angiography revealed normal coronary arteries, ruling out ischemic heart disease.
- Successful tumor resection was performed, with full functional recovery at 10 months.
Implications:
- Sudden death in colloid cyst patients may be attributed to acute neurogenic cardiac dysfunction rather than cerebral herniation.
- Elevated intracranial pressure can activate a neuroendocrine response leading to myocardial stunning.
- This case highlights the critical interplay between neurological and cardiac systems in neurocritical care.
Objective:
To report the occurrence of neurogenic stunned myocardium in the context of a hydrocephalus due to a third ventricle colloid cyst.
Design:
Case report.
Setting:
Neurocritical care unit of a university hospital.
Patient:
The case of a 33-year-old woman with an intraventricular cerebral colloid cyst who developed hydrocephalus, cardiac arrest and survived is presented. Workup was consistent with neurogenic stunned myocardium in the context of acute hydrocephalus due to an intraventricular colloid cyst.
Results:
The patient had decreased left ventricular ejection fraction, apex-sparing areas of hypokinesis and akinesis, wall motion abnormalities not matching a particular vascular territories, the peak troponin T level of 0.09 ng/ml and had normal coronary arteries at angiography. Seven days after the initial event the cardiac function recovered. Tumor resection was successfully performed. At 10 months after discharge, the only complaint was mild memory disturbance, she was completely functional with no evidence of seizures or of cardiac dysfunction.
Conclusion:
The sudden elevation of intracranial pressure, with the subsequent decreased cerebral perfusion pressure induces a vigorous cerebro-protective neuroendocrine system activation that can lead to the neurogenic stunned myocardium. Sudden death in patients with colloid cysts may be related to acute neurogenic cardiac dysfunction, and not necessarily cerebral herniation(s), as previously thought.
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