Nedergaardburke1588
, the eiPAH group had the highest blood K + level in routine examination, while the preload failure group had the lowest blood K + level ( P=0.014). The iCPET of the three subgroups showed statistically significant ( P=0.001) difference in right atrial pressure increase during exercise. Among the three, the eiHFpEF group had the highest increase and the preload failure group had the lowest increase. Conclusion In unexplained dyspnea patients showing no abnormal results in right cardiac catheterization examination, the main cause was preload failure, which manifested as low right atrial pressure at peak exercise intensity. The study showed that iCPET was of important value for dyspnea cases when the cause of the condition was not revealed with right cardiac catheterization.
To investigate the diagnostic value of different captopril challenge test (CCT) diagnostic criteria for diagnosing primary aldosteronism (PA).
We collected the clinical data of 184 patients with hypertension retrospectively in West China Hospital of Sichuan University. Receiver operating characteristic (ROC) curves were used to analyze the post-CCT efficacy of aldosterone renin activity ratio (ARR), plasma aldosterone concentration (PAC), plasma renin activity (PRA) and PAC suppression rate for PA diagnosis.
This study included 125 cases of primary aldehyde (PA group) and 59 cases of essential hypertension (EH group), and there were 38 normal renin primary hypertension (NREH group) and 21 low renin primary hypertension (LREH group) in EH group. The post-CCT PAC suppression rate (median (P
, P
)) of EH and PA group were 0.190 (0.083, 0.351) and 0.125 (0.024, 0.237), respectively. Compared with the NREH group, the basic and post-CCT PRA of LREH group were lower (
<0.001), and there were no signiftable as a confirmatory testing criterion of PA.
Both ARR and PAC have higher diagnostic value than the post-CCT PAC suppression rate, post-CCT PAC is especially suitable as a confirmatory testing criterion of PA.
To study the effect of cytochrome P-4504F2 (
4
2) gene polymorphism on the initial dose of warfarin in patients after mechanical heart valve replacement.
We collected 350 patients receiving warfarin after mechanical heart valve replacement from January 2013 to December 2015 in our hospital. According to the international standardized ratio (INR) ≥2 at the initial stage after surgery, the patients were divided into two groups INR≥2 group and INR<2 group. We selected the blood samples of all the 350 patients with testing the
4
2 gene type of each patient, and analyzed the effect of
4
2 gene polymorphism on the initial dose of warfarin after mechanical heart valve replacement (the average daily dose during hospitalization of patients 5-10 days after mechanical heart valve replacement).
There was no statistical significance in the initial dose of warfarin among patients with different
4
2 genotypes. However, warfarin dose was higher in
4
2 TT genotype than in
4
2 CC carriers ((3.3 patients after heart valve replacement, and this effect is also affected by body characteristics and other factors.
CYP4 F2 gene polymorphism may affect the initial dose of warfarin in patients after heart valve replacement, and this effect is also affected by body characteristics and other factors.
To explore the significance of the resistance to polymyxin resistance of the extensively drug resistant
(XDRAB) lipopolysaccharide (LPS)
,
,
and to screen appropriate combination therapy.
In the past two years, 72 XDRAB in the secretions of our patients were selected as the research object. According to the minimum inhibitory concentration (MIC) of the XDRAB strain on polymyxin, they were included in the drug resistance group and the sensitive group. The gene sequences of strains
,
,
were compared with the standard strains to analyze gene mutations and compared the mutation rates in the drug resistant group and the sensitive group. PMX 205 The efficacy of the combination drugs was evaluated by microcheckerboard dilution method, including polymyxin+imipenem group, polymyxin+meropenem group, polymyxin+cefoperazone/sulbactam group, polymyxin+levofloxacin group, and polymyxin+fosfomycin group. Calculated the fractional inhibitory concentration (FIC) index of the combined medication regimen and comparAB is resistant to polymyxin, which is related to mutations in LPS lipid A biosynthesis genes lpx A, lpx C, lpx D. Clinical treatment should adopt a combination of polymyxin+imipenem/meropenem and other drug combination to reduce the secondary infection of drug resistant bacteria.
To evaluate the clinical application of array-based comparative genomic hybridization (a-CGH) in the prenatal diagnosis of fetal chromosomal aberrations in gravidas with advanced maternal age (AMA).
A total of 3 677 amniotic fluid samples from pregnant women who underwent amniocentesis for prenatal diagnosis solely due to AMA were selected. Array-CGH was performed on the Agilent CGX
(8X60K) platform and the data were analyzed by the Genoglyphix software.
The overall detection rate of chromosomal aberration was 2.04% (75/3677), with 53.33% (40/75) being aneuploidies, including 22 cases of trisomy-21, 5 cases of trisomy-18, 8 cases with XXY, 3 cases of XYY and 2 cases of mosaic monosomy X, 32.00% (24/75) being pathogenic copy number variations (pCNVs), including 19 cases of microdeletion and 5 cases of microduplication, with the fragment size ranging from 323 kb to 26 780 kb, and 14.67% (11/75) being likely pathogenic CNVs (lpCNVs), including 7 cases of microdeletion and 7 cases of microduplication, wil age. However, no correlation was found between the detection rate of p/lpCNVs and maternal age.
To investigate the characteristics of aortic remodeling after thoracic endovascular aortic repair using two-stent graft implantation (TEVAR-TSI) for Stanford B aortic dissection.
The clinical and imaging data of 128 patients who underwent TEVAR-TSI for Stanford B aortic dissection in the First Affiliated Hospital of Hebei North University from January 2013 through May 2019 were retrospectively collected. CT images were obtained before (T
) TEVAR-TSI and, 1 week (T
), 3 months (T
), 6 months (T
), 1 year (T
) after TEVAR-TSI. The maximum diameter of the true lumen and false lumen in the short axis view was accessed at five levels L
the level of primary tear entry, L
the level of the bronchial bifurcation, L
the level of the distal of the first stent-graft, L
the level of the celiac trunk, L
the level of the lowest renal arteries. The false lumen thrombosis in the thoracic aorta and abdominal aorta were assessed at different times, the false lumen and true lumen changes in diameter were evaluated between the preoperative and postoperative CT scan.