| BRAP | burst of rapid atrial pacing |
|---|---|
| BVP | blood vessel prosthesis; blood volume pulse; burst of ventricular pacing |
| BFUe | erythroid Burst Forming Unit |
| BFU | burst-forming unit |
| BFU-E | burst-forming unit, erythrocytes |
| ATP | Antitachycardia pacing |
|---|---|
| AP | Atrial pacing |
| TAP | Transesophageal atrial pacing |
| PCL | pacing cycle length |
| VP | ventricular pacing |
| cardiac pacing, artificial | Regulation of the rate of contraction of the heart muscles by an artificial pacemaker. (12 Dec 1998) |
|---|---|
| pacing catheter | A cardiac catheter with one or more electrodes at its tip which can be used to artificially pace the heart. (05 Mar 2000) |
| underdrive pacing | Electrical stimulation of the heart at a rate lower than that of an existing tachycardia; designed to capture the heart between beats, i.e., to interrupt a reentry pathway in order to terminate the tachycardia. (05 Mar 2000) |
| burst | 1. To fly apart or in pieces; of break open; to yield to force or pressure, especially to a sudden and violent exertion of force, or to pressure from within; to explode; as, the boiler had burst; the buds will burst in spring. "From the egg that soon Bursting with kindly rupture, forth disclosed Their callow young." (Milton) Often used figuratively, as of the heart, in reference to a surcharge of passion, grief, desire, etc. "No, no, my heart will burst, an if I speak: And I will speak, that so my heart may burst." (Shak) 2. To exert force or pressure by which something is made suddenly to give way; to break through obstacles or limitations; hence, to appear suddenly and unexpecedly or unaccountably, or to depart in such manner; usually with some qualifying adverb or preposition, as forth, out, away, into, upon, through, etc. "Tears, such as angels weep, burst forth." (Milton) "And now you burst (ah cruel!) from my arms." (Pope) "A resolved villain Whose bowels suddenly burst out." (Shak) "We were the first that ever burst Into that silent sea." (Coleridge) "To burst upon him like an earthquake." (Goldsmith) Origin: OE. Bersten, bresten, AS. Berstan (pers. Sing. Berste, imp. Sing. Baerst, imp. Pl. Burston, p.p. Borsten); akin to D. Bersten, G. Bersten, OHG. Brestan, OS. Brestan, Icel. Bresta, Sw. Brista, Dan. Briste. Cf. Brast, Break. 1. To break or rend by violence, as by an overcharge or by strain or pressure, especially. From within; to force open suddenly; as, to burst a cannon; to burst a blood vessel; to burst open the doors. "My breast I'll burst with straining of my courage." (Shak) 2. To break. "You will not pay for the glasses you have burst?" (Shak) "He burst his lance against the sand below." (Fairfax (Tasso)) 3. To produce as an effect of bursting; as, to burst a hole through the wall. Bursting charge. See Charge. Source: Websters Dictionary (01 Mar 1998) |
| burst forming unit | <haematology> A bone marrow stem cell lineage detected in culture by its mitotic response to erythropoietin and subsequent erythrocytic differentiation in about 12 mitotic cycles into erythrocytes. (18 Nov 1997) |
| burst number | The number of viral particles that emerge from a cell after a viralinfection has burst it open. (09 Oct 1997) |
| burst size | The number of phages produced by an infected cell. (05 Mar 2000) |
| respiratory burst | <biochemistry> Response of phagocytes to particles (particularly if opsonise d) and to agonists such as formyl peptides and phorbol esters, an enhanced uptake of oxygen leads to the production, by an NADH dependent system, of hydrogen peroxide, superoxide anions and hydroxyl radicals, all of which play a part in bactericidal activity. Defects in the metabolic burst, as in chronic granulomatous disease, predispose to infection particularly with catalase positive bacteria and are usually fatal in childhood. (27 Jun 1999) |
| metabolic burst | <biochemistry> Response of phagocytes to particles (particularly if opsonise d) and to agonists such as formyl peptides and phorbol esters, an enhanced uptake of oxygen leads to the production, by an NADH dependent system, of hydrogen peroxide, superoxide anions and hydroxyl radicals, all of which play a part in bactericidal activity. Defects in the metabolic burst, as in chronic granulomatous disease, predispose to infection particularly with catalase positive bacteria and are usually fatal in childhood. (27 Jun 1999) |
| spider-burst | Radiating dull red capillary lines on the skin of the leg, usually without any visible or palpable varicose veins, but nevertheless due to deep-seated venous dilation; sometimes referred to as skyrocket capillary ectasis. Origin: spiderweb + sunburst (05 Mar 2000) |
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