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lage storage curve

João Antonio Pereira-Correia, Karlo Danilson de Moraes Sousa, João Bosco Pinheiro Santos, Daniel de Morais Perpétuo, Luiz Felipe Lopes-da-Silva, Renato Lages Krambeck, Valter José Fernandes Muller, Fernando Pires Vaz
UNLABELLED: What's known on the subject? and What does the study add? Photovaporization of the prostate (PVP) is now challenging TURP as the standard treatment for lower LUTS caused by BPH. The learning curve for PVP is short and the main advantages of this method over TURP are a shorter period of hospitalization, a shorter period of postoperative vesical catheterization, lower levels of retrograde ejaculation, rare development of dilutional hyponatraemia syndrome, the lack of a need for postoperative vesical irrigation as a result of extremely low indices of postoperative haematuria, and the lack of a need to suspend anticoagulant medication for the surgery...
October 2012: BJU International
S M Slack, H J Weiss, B Lages, V T Turitto
In a previous study the volume of blood obtained from bleeding time incisions was measured every 30 s from normal subjects (n = 15), patients with thrombasthenia (TSA, n=4), idiopathic thrombocytopenic purpura (ITP, n=4), von Willebrand's disease ((v)WD, n=3), Bernard-Soulier syndrome (BSS, n = 2), and δ and αδ-storage pool deficiencies (SPD, n=4 and 5, respectively) and the experimental results analyzed by empirical curve-fitting of the data. In the present investigation, a mathematical model based on blood flow physiology was developed to describe the rate of blood loss over time from these same patients as a function of two parameters, α, which describes the magnitude of vessel contraction following transection, and β, the rate of vessel dilation to its nominal diameter...
1995: Platelets
B Lages, H J Weiss
The possible involvement of secreted platelet substances in agonist-induced [Ca2+]i increases was investigated by comparing these increases in aspirin-treated, fura-2-loaded normal platelets and platelets from patients with storage pool deficiencies (SPD). In the presence and absence of extracellular calcium, the [Ca2+]i response induced by 10 microM ADP, but not those induced by 0.1 unit/ml thrombin, 3.3 microM U46619, or 20 microM serotonin, was significantly greater in SPD platelets than in normal platelets, and was increased to the greatest extent in SPD patients with Hermansky-Pudlak syndrome (HPS), in whom the dense granule deficiencies are the most severe...
February 1997: Thrombosis and Haemostasis
H J Weiss, B Lages
The blood volumes and concentrations of thromboxane B2 (TxB2), platelet factor 4 (PF4), and fibrinopeptide A (FPA) were measured every 30 seconds in bleeding-time blood in normal subjects and in patients with idiopathic thrombocytopenic purpura (ITP), delta and alpha delta storage pool deficiency (SPD), Bernard-Soulier Syndrome (BSS), thrombasthenia (TSA), and von Willebrand's disease (vWD). Data were fitted to second-order (TxB2, PF4, and FPA) or third-order (volumes) polynomials. Average values for various parameters over fixed-time intervals were determined by numerical methods...
July 15, 1993: Blood
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