7.Predictors of left atrial appendage apex spontaneous echo contrast in patients with valvular atrial fibrillation
Wei ZHANG ; Ming ZHONG ; Yun ZHANG
Chinese Journal of Ultrasonography 2003;0(05):-
Objective To investigate the independent factors associated with the apex of left atrial appendage(LAA) spontaneous echo contrast (SEC) in patients with valvular atrial fibrillation (VAF). Methods Seventeen normal subjects and 21 patients with VAF were included. Plasma fibrinogen (Fg),vov Willebrand factor (vWF),D-dimer (DD),P-selectin,thrombin-antithrombin complexes (TAT) and plasminogen activator inhibitor-1(PAI-1) were measured. The apex of LAA SEC was assessed quantitatively by integrated backscatter (IBS). LAA flow and pulmonary venous flow were detected by transesophageal echocardiography. Results Fg,vWF,DD,TAT and PAI-1 were increased significantly in patients with atrial fibrillation compared with control ( P
8.Clinic study to evaluate left ventricular chamber stiffness by catherization and simultaneous echocardiography
Ming ZHONG ; Yun ZHANG ; Wei ZHANG
Chinese Journal of Ultrasonography 2003;0(12):-
Objective To establish the method of depict ing the left ventricular (LV) pressure-volume loop automatically by computer which incorporates LV catherization simultaneous with LV acoustic quantification echocardiography and to assess echocardiography non-invasive evaluation LV chamber stiffness. Methods Thirteen patients with hypertrophic cardiomyopathy (HCM) underwent LV catherization simultaneously with echocardiography. LV pressure and volume curves were sent to computer, and LV pressure-volume loop was depicted automatically and modulus of LV chamber stiffness (Kc) was obtained. Pulsed Doppler echocardiography of mitral intraventricular flows was obtained in patients with HCM. Results Patients with HCM had significantly higher Kc obtained from LV pressure-volume loop ( 0.43 ? 0.11 vs 0.27 ). R-E 3/R-E 0, (R-E 2)-(R-E 1), (R-A 3)-(R-A 2) were correlated to Kc(r= 0.61 , 0.57 , 0.58 ,respectively). Conclusions This method provides a simple and reliable technique for automatically tracing pressure-volume loop and should facilitate further investigation of the left ventricular diastolic function in clinical practice. R-E 3/ R-E 0, (R-E 2)-(R-E 1), (R-A 3)-(R-A 2) offer new non-invasive indices in evaluating LV chamber stiffness.
9.Clinical analysis of coupled and paired ventric premature systole.
Qian-zhong ZHANG ; Wei LI ; Ping LI
Chinese Journal of Pediatrics 2003;41(10):777-778
Adolescent
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Anti-Arrhythmia Agents
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therapeutic use
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Child
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Child, Preschool
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Echocardiography, Doppler, Color
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Electrocardiography
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Exercise Therapy
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Female
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Follow-Up Studies
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Humans
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Male
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Retrospective Studies
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Treatment Outcome
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Ventricular Premature Complexes
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diagnosis
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etiology
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therapy
10.The clinical applicationof amended concave position in gynecological laparoscopy surgery
Hao WU ; Wei ZHANG ; Zhong JIANG
China Medical Equipment 2016;13(3):91-93,94
Objective:To evaluate the clinical effects of amended concave position in gynecological laparoscopy surgery.Methods: Eighty ASAⅠ~Ⅱ patients with gynecological laparoscopy surgery were randomly divided into two groups, the patients in group A were adopted Trendelenburg position; the patients in group B were adopted amended concave position. The Ppeak and PETCO2 in the two groups were recorded during surgery, the time of extubation and the adverse effects as nausea, vomiting, shivering was recorded after surgery.Results: The Ppeak and PETCO2 of group A were higher than that of group B(t=2.526,t=2.838, t=2.881;P<0.05). The time of extubation of group A were higher than that of group B after surgery(t=2.515,t=2.436;P<0.05).Conclusion: Adopting amended concave position can reduce Ppeak and PETCO2 in gynecological laparoscopic surgery, and it is helpful for postoperative recovery of the patients with gynecological laparoscopy surgery.