Hyperdynamic circulation
Hyperdynamic circulation is abnormally increased circulatory volume. Systemic vasodilation and the associated decrease in peripheral vascular resistance results in decreased pulmonary capillary wedge pressure and decreased blood pressure, presenting usually with a collapsing pulse, but sometimes a bounding pulse. In effort to compensate the heart will increase cardiac output and heart rate, which accounts for the increased pulse pressure and sinus tachycardia.Mosby's Medical Dictionary, 8th edition. S.v. "hyperdynamic circulation." Retrieved July 28, 2010 from http://medical-dictionary.thefreedictionary.com/hyperdynamic+circulation The condition sometimes accompanies septic shock, preeclampsia, and other physiological and psychiatric conditions.{{cn|date=November 2021}}
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Possible causes
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- Kidney disease
- Hypovolemia
- Adrenal crisis - especially after fluid replacementBonachour et al. Hemodynamic changes in acute adrenal insufficiency. Intensive Care Medicine (1994) 20:138-141
- Anemia
- Anxiety
- Aortic RegurgitationSattar, Hussain A. Pathoma: Fundamentals of Pathology. Pathoma LLC (2011); p. 80.
- AV fistulae
- Beriberi
- Dysautonomia
- Erythroderma
- Exercise
- Liver failure
- HydrocephalusGreitz, Dan. Radiological Assessment of hydrocephalus: new theories and implications for therapy. Neurosurg Rev (2004) 27: 145-165.
- Hypercapnia
- Paget's disease
- Portal hypertension
- Pregnancy
- Pyrexia
- Thyrotoxicosis
- Vasodilator drugs
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