AngioJet Thrombectomy Versus Catheter-Directed Thrombolysis for Lower Extremity Deep Vein Thrombosis: A Meta-Analysis of Clinical Trials.

Early catheter-directed thrombolysis (CDT) for lower extremity deep vein thrombosis (LEDVT) can reduce post-thrombotic morbidity and the AngioJet thrombectomy is a new therapy that can be selected for the treatment of LEDVT. We performed a systematic review and meta-analysis of clinical trials comparing AngioJet versus CDT to assess the efficacy and safety of AngioJet thrombectomy. We systematically searched PubMed and Embase for clinical trials that published before November 1, 2020 and compared AngioJet thrombectomy and CDT in the treatment of LEDVT. We meta-analyzed effective rate of treatment, serious complications, PTS, Villalta score, duration of treatment and drug dose. AngioJet does not result in a significant difference in the effective rate (OR 1.00, CI 0.73-1.36, P = 0.98; I2 = 0%) and complications (OR 1.16 CI 0.84-1.61, P = 0.36; I2 = 39%) compare to CDT. And there was a statistically significant decrease in incidence of PTS (OR 0.58 CI 0.37-0.91, P = 0.02; I2 = 0%) and Villalta score (OR -1.86 CI -3.49 to -0.24, P = 0.02; I2 = 34%) for AngioJet compared to CDT. In addition, there was a statistically significant decrease in duration of the treatment (OR -2.45 CI -2.75 to -2.15, P < 0.0001; I2 = 95%) and drug dose (OR -3.15 CI -3.38 to -2.93, P < 0.0001; I2 = 98%) between AngioJet and CDT. AngioJet results in a low severity of PTS compared to CDT therapy. Moreover, the average duration of treatment and thrombolysis time was shorter in the AngioJet group compared to the CDT group. However, the AngioJet group was not significantly different in effective rate of treatment and serious complications compared to the CDT group.

[Changes of mean platelet volume, fibrinogen content and blood rheology in peripheral blood of youth patients with cerebral infarction].

This study was aimed to explore the correlation of mean platelet volume (MPV), fibrinogen (FIB) and blood rheology with the youth patients with cerebral infarction, so as to provide the basis for the clinical early diagnosis and treatment. The 109 patients with cerebral infarction aged between 18 - 45 were divided into three group: the large (> 10 cm(3)), middle (4 - 10 cm(3)) and small (< 4 cm(3)) area infarction; 30 healthy persons were served as control group. All the four groups were subjected to 16 examinations, such as MPV, FIB, and rheology (Lηb, Mηb, Hηb, ηp, Lηr, Mηr, Hηr, KVE, EAI, ERI, EDI, EEI, HCT, ESR). The results showed that all the MPV, FIB and rheology indexes of the different infarction groups were higher than those of healthy control group (P < 0.05). The MPV, FIB and rheology indexes in the large area infarction group were all higher than those in the small area infarction group (P < 0.05). The indexes of MPV, FIB and rheology in the various cerebral infarction area groups obviously decreased, but those did not reach to the level in the healthy control group (P < 0.05). The MPV, FIB content and rheology level correlated with infarction areas (r = 0.36, 0.29 and 0.48, respectively). It is concluded that the serious intensity of youth patients with cerebral infarction positively correlated with the levels of MPV, FIB and rheology indexes. Regular examination of above mentioned index may be useful to prevent youth patients from cerebral infraction.

Nonlinear mode coupling and resonant excitations in two-component Bose-Einstein condensates.

Nonlinear excitations in two-component Bose-Einstein condensates (BECs) described by two coupled Gross-Pitaevskii equations are investigated analytically and numerically. The beating phenomenon, the higher-harmonic generation, and the mixing of the excited modes are revealed by both variational approximation and numerical method. The strong excitations induced by the parametric resonance are also studied by time-periodic modulation for the intercomponent interaction. The resonance conditions in terms of the modulation frequency and the strength of intercomponent interaction are obtained analytically, which are confirmed by numerical method. Direct numerical simulations show that, when the resonance takes place, periodic phase separation and multisoliton configurations (including soliton trains, soliton pairs, and multidomain walls) can be excited. In particular, we demonstrate a method for formation of multisoliton configurations through parametric resonance in two-component BECs.