Cerebral ischemic injury after transcatheter aortic valve replacement in patients with pure aortic regurgitation / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Considering the surgical risk stratification for patients with severe calcific aortic stenosis (AS), transcatheter aortic valve replacement (TAVR) is a reliable alternative to surgical aortic valve replacement (SAVR) (Fan et al., 2020, 2021; Lee et al., 2021). Despite the favorable clinical benefits of TAVR, stroke remains a dreaded perioperative complication (Auffret et al., 2016; Kapadia et al., 2016; Kleiman et al., 2016; Huded et al., 2019). Ischemic overt stroke, identified in 1.4% to 4.3% of patients in TAVR clinical practice, has been associated with prolonged disability and increased mortality (Auffret et al., 2016; Kapadia et al., 2016; Levi et al., 2022). The prevalence of hyperintensity cerebral ischemic lesions detected by diffusion-weighted magnetic resonance imaging (DW-MRI) was reported to be about 80%, which is associated with impaired neurocognitive function and vascular dementia (Vermeer et al., 2003; Barber et al., 2008; Kahlert et al., 2010).

Clinical practice and prognosis of emergent transcatheter aortic valve replacement / 中华急诊医学杂志

Objective:To evaluate the effectiveness and prognosis of emergent transcatheter aortic valve replacement (TAVR) and to provide standardized procedural suggestion for the development of emergent TAVR in China.Methods:From January 2020 to April 2021, 12 patients who underwent emergent or salvage TAVR in the Second Affiliated Hospital Zhejiang University School of Medicine were retrospectively enrolled from the TORCH registry (Transcatheter Aortic Valve Replacement Single Center Registry in Chinese Population, a prospective cohort study; NCT02803294). Baseline, periprocedural and 30-day follow up data were collected. Post-operative data were compared with pre-operative data using Paired-Samples test.Results:Patients’ median Society of Thoracic Surgeons score (STS score) was 15.432%. There was a significant decrease of mean gradient after emergent TAVR procedure (1.69 m/s vs. 4.90 m/s, P<0.01). During the 30-day follow up, there were 1 patient (8.3%) died and 2 patients received permanent pacemaker implantation. No disabling stroke, acute kidney injury, major vascular complication occurred during the first month after emergent TAVR. Among the survival patients, there was a significant releasing of heart failure symptoms to New York Heart Association function stage Ⅰ/Ⅱ in 81.8% patients at 30-day follow up. Left ventricular ejection fraction also improved significantly from (47.4±9.5)% to 58.8±8.0% ( P= 0.026). The mean gradient were (1.57±0.30) cm 2 and no patients had a moderate or severe paravalvular leakage. Besides, a significant decrease of pro-B-type natriuretic peptide (1 089.9 pg/mL vs. 12 215.5 pg/mL , P=0.001) and troponin T (0.020 ng/mL vs. 0.337 ng/mL, P=0.003) were found at 30 days after emergent TAVR. Conclusions:For patients with severe aortic stenosis and acute cardiac decompensated, emergent TAVR is a safe and effective rescue treatment.

Clinical features of the fulminant myocarditis / 中华全科医师杂志

Objective To review the clinical features of fulminant myocartitis,in order to provide assistance to the clinical management.Methods The clinic data of 183 patients with viral myocarditis,including 153 cases of acute myocarditis and 30 cases of fulminant myocarditis admitted in our hospital during January 2008 and Dec 2012 were retrospectively analyzed.The age of onset,interval after virus infect,initial symptoms,auxiliary examination,treatment,and turnover were compared in the study.Results The average onset age of fulminant myocartitis and acute myocarditis were similar [(22.3 ± 7.6) vs.(26.2 ± 12.6) years,P =0.105 5].There was a significant difference between the two gourps in the rate of patients with a explicit history of virus infection [30.0％ (9/30) vs.78.4％ (120/153),x2 =28.3,P ＜0.001],the average interval after virus infect [(3.1 ±2.2) vs.(7.0 ±3.80) d,P＜0.001] and the length of hospital stay [(12.1 ± 6.9) vs.(6.9 ± 4.50) d,P ＜ 0.001].Chest congestion (101/153,66.0％),feebleness (76/153,49.7％),fluster (74/153,48.4％) are the most onset symptoms of acute myocarditis,while chest congestion (24/30,80.0％),shortness of breath (14/30,46.7％),feebleness (13/30,43.3％) in flunimant myocarditis.Advanced A-V block (19/30,63.3％),cardiogenic shock (18/30,60.0％),ventricular arrhythmia(16/30,53.3％),Adams-Stokes syndrome(8/30,26.67％) and acute renal failure (8/30,26.7％) were the most complications of flunimant myocarditis.Temporary pacemaker (11 cases),extracorporeal memberane exygenator (7 cases) and intra-aortic balloon pump (7 cases) were applied in critical patients.In acute phase,21 cases were cured,9 cases was dead of cardiogenic shock and ventricular(27,30.0％).Two dead cases applied with ECMO because of delay.After leaving hospital,1 case was implanted permanent pacemaker,2 cases became chronic myocarditis and required hospitalization repeatedly.Conclusions The fulminant myocarditis has a rapid onset,most of which has no prodrome of virus infection or a shorter interval than acute myocarditis.Timely and effective mechanical circulatory support is critical for fulminant myocarditis.