Hyperviscosity Syndrome Clinical Presentation
- Author: Thomas J Hemingway, MD; Chief Editor: Barry E Brenner, MD, PhD, FACEP more...
History
Clinical symptoms generally are related to the triad of mucosal bleeding, visual changes, and neurologic symptoms.[2] Constitutional symptoms and cardiorespiratory symptoms also contribute to the clinical presentation.
- The tendency to bleed is the most common symptom of hyperviscosity syndrome.
- Spontaneous gum bleeding
- Epistaxis
- Rectal bleeding
- Menorrhagia
- Persistent bleeding after minor procedures
- Visual changes range from blurred vision to vision loss.
- Neurologic manifestations are frequent and varied. The neurologic symptoms of hyperviscosity have been referred to as the Bing-Neal syndrome.
- Vertigo
- Hearing loss
- Paresthesias
- Ataxia
- Headaches
- Seizures
- Somnolence progressing to stupor and coma
- Other manifestations may include heart failure, shortness of breath, hypoxia, fatigue, and anorexia.
- In fact, one should have a high index of suspicion for HVS in patients with unexplained coma/altered mental status or unexplained shortness of breath especially in those with an underlying hematologic disorder.
Physical
Physical findings are related to the major organ systems involved.
- Bruises, epistaxis, or gum bleeding may be noted.
- Ophthalmic examination may reveal decreased visual acuity, dilated retinal veins, "sausage-linked" or "boxcar segmentation" of the retinal veins, or retinal hemorrhages.
- Neurologic examination may reveal various findings, including diminished mental status, confusion, ataxia, or nystagmus.
- Cardiopulmonary examination may reveal signs of congestive heart failure with volume overload (rales, lower extremity edema, elevated JVP, and hypoxia).
Causes
Increased serum viscosity usually results from increased circulating serum immunoglobulins and can be seen in Waldenström macroglobulinemia and multiple myeloma.
Less commonly, the hyperproliferative blood cell disorders such as the leukemias, myeloproliferative diseases, polycythemia, and thrombocytosis may be implicated for the increased viscosity caused by proliferation of their respective cellular components.
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