Indunil Karunarathna on CSF Xanthochromia in SAH
Indunil Karunarathna, Founder of Uva Clinical Research Lab (UCRL), shared on LinkedIn:
”Xanthochromia in Cerebrospinal Fluid Diagnostic Relevance, and Implications in Subarachnoid Hemorrhage
Uva Clinical Research Lab 2025, Uva Clinical Anaesthesia and Intensive Care ISSN 2827-7198, 2025
Xanthochromia refers to the yellowish discoloration of cerebrospinal fluid (CSF) due to the presence of bilirubin—a breakdown product of hemoglobin resulting from the lysis of red blood cells in the subarachnoid space.
This clinical finding holds paramount diagnostic significance, particularly in the context of suspected subarachnoid hemorrhage (SAH), where imaging may be inconclusive.
Xanthochromia typically becomes detectable within 6 to 12 hours after hemorrhage and may persist for up to four weeks, offering a critical window for diagnosis when radiologic modalities fail.
This comprehensive review elucidates the etiology, epidemiology, pathophysiology, histopathological basis, and clinical evaluation of xanthochromia.
Etiologically, while SAH is the most clinically urgent cause, other contributors include neoplasms, infections, and systemic hyperbilirubinemia.
The visual detection of xanthochromia remains common, but spectrophotometry provides superior sensitivity and specificity, allowing precise differentiation of bilirubin from other pigments such as oxyhemoglobin.
The integration of lumbar puncture and CSF analysis into the diagnostic algorithm remains indispensable, especially after a negative noncontrast CT scan in patients presenting with thunderclap headaches or other SAH-compatible symptoms.
A multidisciplinary approach involving emergency physicians, neurologists, neurosurgeons, radiologists, and laboratory technicians is vital to ensure accurate diagnosis and timely treatment, particularly in the context of aneurysmal rupture.
Understanding the nuances of xanthochromia enhances diagnostic accuracy, minimizes unnecessary interventions, and improves patient outcomes in neurologic emergencies.”
Read the full article here.
Article: Xanthochromia in Cerebrospinal Fluid Diagnostic Relevance, and Implications in Subarachnoid Hemorrhage
Author: Indunil Karunarathna
Stay updated with Hemostasis Today.
-
Apr 14, 2026, 12:46Rosa Hart: Inside Pediatric Stroke Recovery with Dr. Catherine Schuster
-
Apr 14, 2026, 12:39Gonzalo Ladreda: Innovation in Stroke Care Is About Timing, Integration, and Real-World Usability
-
Apr 14, 2026, 12:30Roy P.C. Kessels: Stroke’s Cognitive Impact on Young Adults Is Significant and Often Overlooked
-
Apr 14, 2026, 12:22Mehari Gebreyohanns: New Insights on Wake-Up Strokes from Emergency Settings in Texas and Louisiana
-
Apr 14, 2026, 12:08Enrico Ferro: Comparative Study Raises Questions on PFA Safety in AF at EHRA 2026
-
Apr 14, 2026, 11:39Prachi Patel: How B Vitamins and Large-Scale Research Are Shaping Stroke Prevention
-
Apr 14, 2026, 11:28Jamie Brannigan: Help Shape the Future of Brain-Computer Interfaces in Stroke and Neurological Care
-
Apr 14, 2026, 11:18David Ferri: A Fontan Conduit Thrombosis Managed With an Innovative Catheter-Based Thrombectomy
-
Apr 14, 2026, 09:51Understanding Bleeding Disorder of Unknown Cause – EHC