Related Experiment Video
Updated: Jan 26, 2026

Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation
Published on: October 15, 2021
Bilateral Oculomotor Palsy After Surgical Evacuation of Chronic Subdural Hematoma
Luca Zavatto1, Federica Marrone1, Mario Allevi1
1Department of Neurosurgery, San Salvatore Hospital, L'Aquila, Italy; Department of Life, Health & Environmental Sciences (MESVA), University of L'Aquila, L'Aquila, Italy.
Background:
Chronic subdural hematoma is a common neurosurgical disease and the most benign form of intracranial hematoma. Most patients are successfully treated with simple burr hole evacuation and external drainage with good outcome and low rate of complications. Brainstem hemorrhage is a rare cause of severe disability in these patients, and cannot be ignored.
Case Description:
We report the first case of bilateral oculomotor palsy due to a midbrain hemorrhage after evacuation of a unilateral chronic subdural hematoma. The relevant literature is also reviewed to better understand the causes of this rare but disabling occurrence and how it can be prevented during and after surgery.
Conclusions:
Neurosurgeons must have awareness of remote intracerebral hemorrhage after burr hole evacuation of chronic subdural hematoma, and take measures to avoid it during surgery. Our experience and the review of the relevant literature demonstrate that preoperative computed tomography can provide information to identify the patients at major risk.
Related Concept Videos
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Chronic Pancreatitis I: Introduction
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Kidney Transplant II: Surgical Procedure
Chronic Pancreatitis II: Collaborative Care
Assessment:
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Chronic Kidney Disease I: Introduction

