SAT0631 Inter-observer and intra-observer reliability of the omeract ultrasonographic (US) criteria for the diagnosis of calcium pyrophosphate deposition disease (CPPD) at the metacarpal-phalangeal (MCP), wrist, acromion-clavicular (AC) and hip joints

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Connective tissue activation. xxxvi. the origin, variety, distribution, and biologic fate of connective tissue activating peptide–iii isoforms: characteristics in patients with rheumatic, renal, and arterial disease

Objective. To determine the origin, distribution, and biologic fate of platelet-derived connective tissue activating peptide–III (CTAP-III), to define the relative amounts of the antigen forms (CTAP-III, betathromboglobulin [Β-TG], neutrophil activating peptide–2 [NAP-2]) in plasma of normal persons and those with rheumatic or end-stage renal disease, and to define the isoforms of CTAP-III in platelets, plasma, transudates, and tissue deposits. Methods. CTAP-III in plasma was measured by enzyme-linked immunosorbent assay, and growth promoting activity of CTAP-III isoforms was tested in synovial and peritoneal cell cultures by measuring increased synthesis of 14 C-glycosaminoglycan ( 14 C-GAG) and 3 H-DNA. Isolated CTAP-III was characterized by Western blotting, microsequencing, and mass spectrometry. Results. CTAP-III was the primary isoform of this antigen family in normal platelets and platelet-rich plasma; Β-TG and NAP-2 accounted for 90%), and Β-TG was the most rare (0–1%). Deposition of CTAP-III in tissues, such as synovium, spleen, and kidney, is associated with partial processing to NAP-2–like isoforms and the potential to induce neutrophil and fibroblast activation in patients with rheumatic or end-stage renal disease.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/37798/1/1780360816_ftp.pd

Use of Noninvasive Gas Exchange to Track pulmonary Vascular Responses to exercise in Heart Failure

We determined whether a non-invasive gas exchange based estimate of pulmonary vascular (PV) capacitance [PV CAP = stroke volume (SV) x pulmonary arterial pressure (Ppa)] (GX CAP ) tracked the PV response to exercise in heart-failure (HF) patients. Pulmonary wedge pressure (Ppw), Ppa, PV resistance (PVR), and gas exchange were measured simultaneously during cycle exercise in 42 HF patients undergoing right-heart catheterization. During exercise, P ET CO 2 and V E /VCO 2 were related to each other ( r = -0.93, P < 0.01) and similarly related to mean Ppa (mPpa) ( r = -0.39 and 0.36; P < 0.05); P ET CO 2 was subsequently used as a metric of mPpa. Oxygen pulse (O 2 pulse) tracked the SV response to exercise (r = 0.91, P < 0.01). Thus, GX CAP was calculated as O 2 pulse x P ET CO 2 . During exercise, invasively determined PV CAP and non-invasive GX CAP were related (r = 0.86, P < 0.01), and GX CAP correlated with mPpa and PVR (r = -0.46 and -0.54; P < 0.01). In conclusion, noninvasive gas exchange measures may represent a simple way to track the PV response to exercise in HF

Estimativa da prevalência de neoplasia cerebral na faixa etária pediátrica pelo método de captura-recaptura Estimative prevalence of cerebral neoplasm of childhood from the capture-recapture method

O estudo teve como objetivo estimar a prevalência e a letalidade das neoplasias cerebrais primárias em crianças entre 1-15 anos, Bahia, 1995. O desenho foi de corte transversal, incluindo todos os casos de neoplasia cerebral diagnosticados por múltiplas fontes. A partir dos casos identificados foi utilizado o método de captura-recaptura para estimar o provável número real de casos e medir as prevalências, com intervalos de confiança (IC) a 95%. Por este método estimou-se a existência de 87 casos (IC = 64 ;111) de neoplasias cerebrais no Estado, sendo 72 (IC =54 ; 91) na capital. A prevalência resultante foi 1,85/100 000 crianças entre 1 e 15 anos (IC =1,36; 2,36/100 000) para o Estado e 10,1/100 000 (IC = 7,58 ;12,77/100 000) para a capital. A letalidade foi 5,4% (IC = 4% ; 8%) para a capital e 8,9% (IC =7% ; 13%) para o estado. O método de captura-recaptura mostrou elevada precisão na estimativa do total de casos. Possíveis causas para o não diagnóstico e/ou tratamento das neoplasias cerebrais são comentadas.<br>The aim of the study was to estimate the prevalence and fatality rate of primary cerebral neoplasms among children between 1 and 15 years old, State of Bahia, Brazil,1995. It was a cross-sectional study which includes all cases of brain tumors diagnosed by several sources. From these cases the capture-recapture method was used to estimate the probable number of cases and measure the prevalence and confidence intervals at 95%. By this method it was estimated the existence of 87 cases (CI = 64 ; 111) of brain tumores in the State, being 72 (CI = 54 ; 91) in the capital. The estimated prevalence was 1.85/100 000 for children between 1 to 15 years old (CI = 1.36 ; 2.36/100 000) for the State, and 10.1/100,000 (CI = 7.58 ; 12.77/100,000) for the capital. The fatality rate was 5.4 percent (CI = 4% ; 8%), and 8.9% (CI = 7% ; 13%) for the capital and the State respectively. The capture-recapture method showed high precision to estimate the total number of cases. Possible causes of no diagnostic nor treatment of cerebral neoplasms are discussed