Xanthochromia is a yellow, orange, or pink discoloration of the CSF, most often caused by the lysis of RBCs resulting in hemoglobin breakdown to oxyhemoglobin, methemoglobin, and bilirubin. Discoloration begins after RBCs have been in spinal fluid for about two hours, and remains for two to four weeks.
What is Xanthochromic fluid?
Xanthochromia, from the Greek xanthos (ξανθός) “yellow” and chroma (χρώμα) “colour”, is the yellowish appearance of cerebrospinal fluid that occurs several hours after bleeding into the subarachnoid space caused by certain medical conditions, most commonly subarachnoid hemorrhage.
What color is xanthochromia in CSF?
The best way of distinguishing RBCs related to intracranial bleeding is to examine the centrifuged supernatant CSF for xanthochromia (yellow color). Although xanthochromia can be confirmed visually, it is more accurately identified and quantified in the laboratory.
How long does xanthochromia CSF last?
Xanthochromia is usually caused by red blood cell degeneration in the CSF as would be seen in subarachnoid hemorrhage (SAH). The breakdown of red blood cells takes many hours to occur. Xanthochromia would be reliably seen by 12 hours and can persist for up to 2 weeks [this assumes that Vermulen1 was correct.
Is Xanthochromic CSF normal?
Xanthochromia is the yellowish discoloration of the supernatant of a centrifuged CSF specimen. It is abnormal and results from the lysis of RBCs and release of the breakdown pigments oxyhemoglobin, bilirubin, and methemoglobin into the CSF.
How long does it take for xanthochromia to develop?
Therefore, xanthochromic CSF at the time of LP indicates SAH; however, xanthochromia can take as long as 12 hours to develop (19), and delaying an LP for that long after ictus to ensure its appearance may be unacceptable.
What is CSF pleocytosis?
In medicine, pleocytosis (or pleiocytosis) is an increased cell count (from Greek pleion, “more”), particularly an increase in white blood cell count, in a bodily fluid, such as cerebrospinal fluid. It is often defined specifically as an increased white blood cell count in cerebrospinal fluid.
When should nimodipine be given?
Nimodipine comes as a capsule and an oral solution (liquid) to take by mouth or be given through a feeding tube. It is usually taken every 4 hours for 21 days in a row. Treatment with nimodipine should be started as soon as possible, no later than 96 hours after a subarachnoid hemorrhage occurs.
What does yellow spinal fluid mean?
Spinal fluid is normally clear and colorless. If the color is orange, yellow or pink, it might indicate abnormal bleeding. Spinal fluid that is green might indicate an infection or the presence of bilirubin.
What does pink CSF mean?
Pink-red CSF indicates the presence of blood. Blood may originate from a traumatic tap, subarachnoid hemorrhage, intracerebral hemorrhage, or cerebral infarct. It is important to distinguish a traumatic tap from pathologic bleeding.
How can you tell traumatic tap from SAH?
A potentially more reliable method of differentiating SAH from a traumatic LP is to spin down the CSF and examine the supernatant fluid for the presence of xanthochromia, a pink or yellow coloration of the CSF supernatant caused by the breakdown of RBCs and subsequent release of heme pigments.
What is acute SAH?
A subarachnoid hemorrhage is bleeding in the space between your brain and the surrounding membrane (subarachnoid space). The primary symptom is a sudden, severe headache.
