Cardiovascular Revascularization Medicine最新文献

Background: Large bore percutaneous access is becoming increasingly common. Parallel to this, we observe an increase in vascular access site complications such as bleeding, dissection, thrombosis or pseudo-aneurysms. This study was aimed to evaluate safety and efficacy of covered stent grafts for fixing large bore vascular access injuries.

Methods: A total of 147 Viabahn or Viabahn VBX (WL Gore) stent grafts which were placed across the inguinal ligament in emergent settings in 136 patients, were retrospectively analyzed. The two endpoints were the technical success rate, defined by complete arterial repair, and long-term stent graft patency. We also looked at the need for open conversion, wound infections, and in hospital and 30-day mortality. We followed the patients using duplex ultrasound and computed tomography angiogram to assess for arterial patency, freedom from intervention, stent kinking and clinical symptoms.

Results: 30 Viabahn and 117 Viabahn VBX (WL Gore) stent grafts were placed in the distal external iliac artery and into the proximal common femoral artery of 136 patients. Indications for intervention were bleeding in 92 patients (68 %), flow limiting dissection in 41 patients (30 %) and symptomatic AVF in 3 patients (2 %). Primary technical success rate was 100 %. Limited 3-year follow up (101/136 patients) showed 99 % patency with no evidence of stent fracture, stenosis or kinking except in one patient who needed target lesion revascularization due to neointimal hyperplasia.

Conclusions: Covered stent grafts can be placed safely, efficiently, and effectively in the distal external iliac and common femoral arteries across the inguinal ligament. These stent grafts can be used as an alternative therapeutic option to open surgery in patients with large bore vascular access injuries.

New conduction disorders remain a frequent complication in current transcatheter aortic valve replacement (TAVR) era. Left bundle branch block (LBBB) occurs early in about 20-30 % of TAVR-patients, persists at 1 month in about 35-45 % of cases and will likely remain thereafter. Third-degree atrioventricular block (AV3B) affects approximately 15 % of patients. Pacemaker dependency gradually decreases throughout follow-up and approximately 25-35 % of patients remain pacemaker dependent at one year. We aimed to review what is currently known about the dynamics of acquired conduction disorders, including extraction of predictors, and how to interpret these dynamics in light of an early discharge policy.

Background: There is little data on the outcome of balloon aortic valvuloplasty (BAV) in relation to valve dimensions and calcification patterns. The procedure is not standardized, particularly the choice of balloon size.

Methods: This retrospective multicenter study focused on BAV efficacy and safety by analyzing the relationship between balloon size, annulus geometry (i.e., diameters, perimeter, and area), and calcification patterns (total burden and calcium distribution over each individual leaflet). From March 2018 to March 2023, all consecutive patients who underwent clinically indicated BAV and ECG-gated multidetector computed tomography of the aorta were included, except those with a bicuspid valve. Calcium score was calculated on contrast-enhanced images based on a luminal attenuation threshold of +100 HU.

Results: One hundred and fifteen patients were included. Procedural success was 82.6 %. The balloon-to-annulus ratio (BAR) relative to diameter, perimeter, and area was higher in patients with successful BAV. Patients with unsuccessful BAV had a significantly higher aortic valve calcium burden. The complication rate was 4.3 % and there was no association with valve geometry or calcium burden. A trend towards a reduced complication rate was found as calcium asymmetry increased. BAR minimum annulus diameter was the best parameter in predicting procedural success, with a cut-off at 0.85.

Conclusions: BAV efficacy is correlated directly with balloon size in relation to annulus dimension and inversely with total calcium burden. The minimum diameter of the valve may be adopted as a reference for balloon sizing.

Background: While transcatheter edge-to-edge repair (TEER) with MitraClip is increasingly used, data on the risk stratification for assessing early mortality after this procedure are scarce.

Objective: This study aimed to assess early mortality and analyze the risk factors of early mortality among patients who underwent TEER.

Methods: Using the all-payer, nationally representative Nationwide Readmissions Database, our study included patients aged 18 years or older who had TEER between January 2017 and November 2020. We categorized the cohort into two groups depending on the occurrence of early mortality (death within 30 days after the procedure). Based on the ICD-10, we identified the trend of early mortality after TEER and further analyzed the risk factors associated with early mortality.

Results: A total of 15,931 patients who had TEER were included; 292 (1.8 %) with early mortality and 15,639 (98.2 %) without. There was a decreasing trend in early mortality from 2.8 % in the first quarter of 2017 to 1.2 % in the fourth quarter of 2020, but it was not statistically significant (p = 0.18). In multivariable analysis, the independent risk factors for early mortality were chronic kidney disease not requiring dialysis (adjusted odds ratio [aOR]: 1.57; 95 % confidence interval [CI]: 1.11-2.22, p = 0.01), end-stage renal disease (aOR: 2.34; CI: 1.44-3.79, p < 0.01), chronic liver disease (aOR: 4.90; CI: 3.29-7.29, p < 0.01), coagulation disorder (aOR: 3.42; CI: 2.35-5.03, p < 0.01), systolic heart failure (aOR: 2.81; CI: 1.34-5.90, p < 0.01), diastolic heart failure (aOR: 2.69; CI: 1.24-5.84, p = 0.01) and unspecified heart failure (aOR: 3.23; CI: 1.49-7.01, p < 0.01). Among those who died during 30-day readmission following TEER, the most common cardiac cause and non-cardiac-cause of readmission were heart failure (18.2 %) and infection (26.6 %), respectively.

Conclusion: The early mortality following TEER was low at 1.8 %. The independent risk factors associated with early mortality were chronic kidney disease (including end-stage renal disease), chronic liver disease, coagulation disorder, and heart failure (both systolic and diastolic).

Background: Guidelines and international appropriate use criteria increasingly endorse non-invasive stress testing to evaluate patients with suspected chronic coronary disease (CCD). We sought to review the real-world utilisation of non-invasive stress testing and investigate whether their use prior to PCI associates with outcomes in patients with CCD.

Methods: Consecutive patients from a multicentre registry who underwent PCI for CCD between 2006 and 2018 were included. Clinical characteristics and outcomes were stratified according to whether stress testing was performed prior to PCI (stress vs no-stress groups). The primary outcome was 3-year all-cause mortality.

Results: Among the 8251 patients included, 4970 (60.2 %) underwent pre-PCI stress testing and this proportion increased over time (p-for-trend<0.001). The stress group had a lower prevalence of prior revascularization, myocardial infarction, or heart failure, and a lower incidence of triple vessel disease, in stent re-stenosis, and ACC/AHA class B2/C lesions (all p < 0.001). When comparing post-procedural outcomes, the stress group had lower rates of arrhythmia (1.5 % vs 2.6 %, p = 0.001), new heart failure (0.2 % vs 0.8 %, p = 0.001), renal impairment, and a shorter length of stay (1.6 vs 2.1 days, p < 0.001). Mortality at 3-years was lower in those undergoing PCI following stress testing (5.8 % vs 8.8 %, p < 0.001). After adjusting for key clinical variables, stress guided revascularization was associated with a significantly lower risk of 3-year mortality (adjusted Hazard Ratio 0.77, 95 % CI 0.64-0.92).

Conclusions: In patients with CCD, PCI guided by non-invasive stress testing is increasingly utilized and associated with improved survival. Further studies are necessary to investigate whether this results from differences in patient characteristics, optimized patient selection, or refined choice of target vessel.