Hemorrhage

Hemorrhage
Bleeding or the abnormal flow of blood. The patient may have an internal hemorrhage that is invisible or an external hemorrhage that is visible on the outside of the body. Bleeding into the spleen or liver is internal hemorrhage. Bleeding from a cut on the face is an external hemorrhage. The term "hemorrhagic" comes from the Greek "haima," blood + rhegnumai," to break forth = a free and forceful escape of blood.
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1. An escape of blood from the intravascular space. 2. To bleed. [G. haimorrhagia, fr. haima, blood, + rhegnymi, to burst forth]
- brainstem h. h. into the pons or mesencephalon, often secondary to brainstem distortion by transtentorial herniations due to rapidly expanding intracranial lesions.
- cerebral h. h. into the substance of the cerebrum, usually in the region of the internal capsule by the rupture of the lenticulostriate artery. SYN: hematencephalon, intracerebral h..
- concealed h. SYN: internal h..
- Duret h. small brainstem h. resulting from brainstem distortion secondary to transtentorial herniation.
- extradural h. an accumulation of blood between the skull and the dura mater. SYN: epidural hematoma.
- intermediate h. h. that is recurrent.
- internal h. bleeding into organs or cavities of the body. SYN: concealed h..
- intracerebral h. SYN: cerebral h..
- intracranial h. bleeding within the cranial vault; includes cerebral h. and subarachnoid h..
- intrapartum h. h. occurring in the course of normal labor and delivery.
- nasal h. SYN: epistaxis.
- parenchymatous h. bleeding into the substance of an organ.
- h. per rhexis h. due to the rupture of a blood vessel.
- petechial h. capillary h. into the skin that forms petechiae. SYN: punctate h..
- pontine h. h. occurring in the substance of the pons, typically in hypertensive patients.
- postpartum h. h. from the birth canal in excess of 500 ml after a vaginal delivery or 1000 mL after a cesarean delivery during the first 24 hours after birth.
- primary h. h. immediately after an injury or operation, as distinguished from intermediate or secondary h..
- punctate h. SYN: petechial h..
- renal h. hematuria, of which the kidney is the source.
- secondary h. h. at an interval after an injury or an operation.
- serous h. obsolete term for a profuse transudation of plasma through the walls of the capillaries.
- splinter hemorrhages tiny longitudinal subungual hemorrhages typically seen in but not diagnostic of bacterial endocarditis, trichinosis, etc.
- subarachnoid h. extravasation of blood into the subarachnoid space, often due to aneurysm rupture and usually spreading throughout the cerebrospinal fluid pathways.
- subdural h. extravasation of blood between the dural and arachnoidal membranes; acute and chronic forms occur; chronic hematomas may become encapsulated by neomembranes. SYN: subdural hematoma.
- subgaleal h. collection of blood beneath the galea aponeurotica.
- syringomyelic h. h. into a syringomyelic cavity.

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hem·or·rhage or chiefly Brit haem·or·rhage 'hem-(ə-)rij n a copious discharge of blood from the blood vessels
hem·or·rhag·ic or chiefly Brit haem·or·rhag·ic .hem-ə-'raj-ik adj
hemorrhage or chiefly Brit haemorrhage vi, -rhaged; -rhag·ing to undergo heavy or uncontrollable bleeding

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hem·or·rhage (hemґə-rəj) [hemo- + -rrhage] the escape of blood from the vessels; bleeding. Small hemorrhages are classified according to size as petechiae (very small), purpura (up to 1 cm), and ecchymoses (larger). A large accumulation of blood within a tissue is called a hematoma. See also bleeding. hemorrhagic adj

Medical dictionary. 2011.

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  • Hemorrhage — Hem or*rhage, n. [L. haemorrhagia, Gr. a imorragi a; a i^ma blood + rhgny nai to break, burst: cf. F. h[ e]morragie, h[ e]morrhagie.] (Med.) Any discharge of blood from the blood vessels. [1913 Webster] Note: The blood circulates in a system of… …   The Collaborative International Dictionary of English

  • hemorrhage — [hem′ər ij΄, hem′rij΄] n. [Fr hémorrhagie < L haemorrhagia < Gr haimorrhagia < haima, blood (see HEMO ) + base of rhēgnynai, to break, burst] the escape of large quantities of blood from a blood vessel; heavy bleeding vi. hemorrhaged,… …   English World dictionary

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  • hemorrhage — [v] bleed drain, extravasate, gush, lose blood, ooze, open vein, outflow, phlebotomize, seep, spill blood; concept 185 …   New thesaurus

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