Impact of the clinical frailty scale on long-term outcomes after transcatheter aortic valve implantation.

BACKGROUND: The semiquantitative Clinical Frailty Scale (CFS) is reportedly a useful marker for predicting short- and mid-term mortality after transcatheter aortic valve implantation (TAVI). We assessed the long-term prognostic impact of CFS in patients with severe aortic stenosis undergoing TAVI. METHODS: We prospectively assessed patients undergoing TAVI in Kokura Memorial Hospital using a 9-level CFS and enrolled 1594 patients after excluding patients with CFS 8-9. The patients were divided into the low (CFS level, 1-3; N = 842), intermediate (4; N = 469), and high (5-7; N = 283) groups according to their CFS levels. RESULTS: In the low, intermediate, and high groups, 3-year all-cause mortality rates were 17.4%, 29.4%, and 41.7% (P < .001) and composite rates of cardiovascular mortality and heart failure hospitalization were 12.1%, 19.1%, and 23.9% (P < .001), respectively. Multivariable analysis showed that higher frailty was independently associated with all-cause mortality (intermediate group: adjusted hazard ratio [HR], 1.63, 95% confidence interval [CI], 1.24-2.15, P < .001; high group: adjusted HR, 2.18, 95% CI, 1.59-2.99, P < .001) and composite of cardiovascular mortality and heart failure hospitalization (intermediate group: adjusted HR, 1.47, 95% CI, 1.04-2.08, P = .030; high group: adjusted HR, 1.66, 95% CI, 1.09-2.51, P = .018) and this result was consistent, irrespective of stratification based on age, sex, body mass index, left ventricular ejection fraction, Society of Thoracic Surgeons score, and New York Heart Association functional class without significant interaction. CONCLUSIONS: The simple CFS tool predicts the long-term adverse outcomes post-TAVI.

Concomitant Mitral Regurgitation in Severe Aortic Stenosis　- Insights From the CURRENT AS Registry-2.

BACKGROUND: Data on concomitant mitral regurgitation (MR) in patients with severe aortic stenosis (AS) are scarce.Methods and Results: We investigated the risk of concomitant MR in patients with severe AS in the CURRENT AS Registry-2 according to initial treatment strategy (transcatheter aortic valve implantation [TAVI], surgical aortic valve replacement [SAVR], or conservative). Among 3,365 patients with severe AS, 384 (11.4%) had moderate/severe MR (TAVI: n=126/1,148; SAVR: n=68/591; conservative: n=190/1,626). The cumulative 3-year incidence for death or heart failure (HF) hospitalization was significantly higher in the moderate/severe than no/mild MR group in the entire population (54.6% vs. 34.3%, respectively; P<0.001) and for each treatment strategy (TAVI: 45.0% vs. 31.8% [P=0.006]; SAVR: 31.9% vs. 18.7% [P<0.001]; conservative: 67.8% vs. 41.6% [P<0.001]). The higher adjusted risk of moderate/severe MR relative to no/mild MR for death or HF hospitalization was not significant in the entire population (hazard ratio [HR] 1.15; 95% confidence interval [CI] 0.95-1.39; P=0.15); however, the risk was significant in the SAVR (HR 1.92; 95% CI 1.04-3.56; P=0.04) and conservative (HR 1.30; 95% CI 1.02-1.67; P=0.04) groups, but not in the TAVI group (HR 1.03; 95% CI 0.70-1.52; P=0.86), despite no significant interaction (Pinteraction=0.37). CONCLUSIONS: Moderate/severe MR was associated with a higher risk for death or HF hospitalization in the initial SAVR and conservative strategies, while the association was less pronounced in the initial TAVI strategy.

Impact of tapered-shape left ventricular outflow tract on pacemaker rate after transcatheter aortic valve replacement.

Mechanical compression of left ventricular outflow tract (LVOT) was reported to be a leading cause of conduction impairment requiring permanent pacemaker implantation (PPI) after transcatheter aortic valve replacement (TAVR). However, the association between tapered-shape LVOT and PPI after TAVR has not been elucidated. Of 272 consecutive patients treated with SAPIEN 3 in our institute, we retrospectively analyzed the clinical data of 256 patients without previous PPI or bicuspid valve. In-hospital PPI was performed in 20 (7.8%) patients at 8.2 ± 2.9 days after TAVR. Patients requiring PPI had smaller LVOT area (356.3 vs. 399.4 mm2, p ≤ 0.011). Moreover, receiver operating characteristic statistics showed that LVOT area /annulus area possessed significantly higher predictive ability than LVOT area (c-statistic: 0.91 [95% confidence interval [CI]: 0.84-0.95] vs. 0.67 [95% CI: 0.57-0.77], p < 0.001). Multivariable analysis revealed that LVOT area /annulus area (odds ratio [OR]: 1.93 [95% CI: 1.38-2.71]; p < 0.001 per % of decreasing), the difference between membranous septum length and implantation depth (ΔMSID) (OR: 6.82 [95% CI 2.39-19.48]; p < 0.001 per mm of decreasing) and pre-existing complete right bundle branch block (CRBBB) (OR: 32.38 [95% CI2.30-455.63]; p ≤ 0.002) were independently associated with PPI. In our study, tapered-shape LVOT as well as short ΔMSID and pre-existing CRBBB were identified as independent predictors for PPI after TAVR. Higher valve implantation is required to minimize the risk of post-procedural PPI especially for patients with short MS length, pre-procedural CRBBB, or tapered-shape LVOT.

Mid-term impact of underfilling and overfilling of the SAPIEN 3 balloon-expandable transcatheter aortic valve implantation on mortality and valve function.

At present, underfilling or overfilling the volume of the balloon-expandable transcatheter heart valve (THV) is generally utilized in transcatheter aortic valve implantation (TAVI). However, no research has assessed the clinical impact of filling volume variations of the current-generation SAPIEN 3 THV. We analyzed the clinical data of 331 patients who underwent TAVI with SAPIEN 3 at our institution. Post-procedural echocardiographic and multidetector computed tomography (MDCT) scan data and 3-year prognoses according to each filling volume were assessed. The procedural outcomes and 3-year mortality rates were comparable among the underfilling, nominal filling, and overfilling groups. For all THV sizes, the THV area evaluated on post-procedural MDCT scan increased stepwise along with an elevated filling volume, thereby covering a wide range of native annulus area. Compared with patients in the nominal filling and overfilling groups, those with 23-mm THVs in the underfilling group had a smaller effective orifice area (EOA) (1.38 [IQR: 1.18-1.56] vs. 1.57 [IQR: 1.41-1.84] vs. 1.58 [IQR: 1.45-1.71] cm2, P = 0.02) and a higher mean transvalvular gradient (13.6 [IQR: 11.0-15.7] vs. 12.1 [IQR: 9.0-14.9] vs. 12.0 [IQR: 8.1-14.8] cm2, P = 0.04). In conclusion, by adjusting the filling volume of SAPIEN 3 using THV with limited sizes, continuously distributed native annulus areas were covered. The underfilling implantation technique had a minimal negative effect on the valve function of 23-mm THVs only. In the entire cohort, the filling volume variations did not affect the mid-term prognosis negatively.

[A Nonagenarian Case of Less Invasive Two-stage Operation for Endoleak Following Thoracic Endovascular Aortic Repair].

A 85-year old male with hoarseness due to distal aortic arch aneurysm underwent zone 1 thoracic endovascular aortic repair( TEVAR) with two-debranching at our hospital. Five years after the TEVAR (90 years old), computed tomography( CT) revealed typeⅠa endoleak due to migration of proximal end of the graft. Anatomically, additional TEVAR was impossible. To minimize the invasiveness, a two-stage surgery was planned. First, under deep hypothermic circulatory arrest, the ascending aorta was replaced with the brachiocephalic artery reconstruction and insertion of a stented vascular prosthesis distally through partial sternotomy to preserve the debranching bypass. Six days after the surgery, a transcatheter stent graft was placed from the stented vascular prosthesis to the native descending aorta. Postoperative course was uneventful, and CT scan showed no endoleak.

[Midterm Structural Valve Failure of the Transcatheter Aortic Valve due to Leaflet Dehiscence].

We experienced a rare case of acute heart failure due to prosthetic valve regurgitation seven years after the transcatheter aortic valve implantation (TAVI). We performed an emergent surgical aortic valve replacement. Intraoperative findings revealed the dehiscence of both sides of the anatomical noncoronary cusp without evident signs of degenerations such as thickening, calcification, or infection. Postoperative course was uneventful, and the patient discharged home 20 days after surgery. Although cause of valve failure was unclear, we are seriously concerned about the increase of similar cases in the future. Application of TAVI especially to younger patients should be avoided until long-term safety is demonstrated.

[Initial Experiences of Valve-sparing Aortic Root Replacement Using New Designed Valsalva Graft:Report of Three Cases].

Valve sparing aortic root replacement( VSRR) is currently an established option for patients with annuloaortic ectasia( AAE). A newly designed Valsalva graft, the J Graft Shield Neo Valsalva, was used for VSRR in three cases. All operations were successful and postoperative courses were uneventful. Graft designs closer in shape to the native Valsalva may contribute to the improvement of late outcomes in VSRR.

Aortic valve approaches in the era of minimally invasive cardiac surgery.

The concept of minimally invasive cardiac surgery has been gradually adopted world-wide since its inception more than 2 decades ago. Recently, catheter intervention has been used in the treatment of structural heart disease. Most notably, minimally invasive transcatheter aortic valve implantation is now an established treatment option for aortic valve stenosis. There are three major approaches for minimally invasive aortic valve surgery: via median sternotomy, via the parasternal approach, and via the thoracotomy approach. All these approaches allow for a small skin incision and/or avoid full sternotomy. Moreover, several advanced variations with additional aortic procedures or totally endoscopic management have been developed. When considering each approach, low invasiveness must be balanced with safety, as surgeons broaden their insight of advanced medicine. Physical invasiveness is largely related to the surgical approach in minimally invasive surgery. We review the history and evolution of the different surgical approaches for minimally invasive aortic valve replacement.

sArterial cannulation to establish cardiopulmonary bypass during surgery for acute aortic dissection.

A cannulation strategy in surgery for Stanford type A acute aortic dissection (AAAD) is integral for patient survival. Femoral cannulation has been the standard option for cannulation; however, there is increasing evidence that retrograde perfusion with femoral cannulation is associated with worse clinical outcomes, and new cannulation sites have been introduced in surgery for AAAD. Although axillary artery cannulation and central cannulation via the ascending aorta have become more popular than femoral access in recent years, adverse events have been reported and shifting cannulation sites during surgery are recommended by some surgeons. Therefore, it is beneficial for surgeons to broaden their knowledge about cannulation technology for AAAD. In this review, we discuss the various methods of cannulation for AAAD.

Reinforcement and reapproximation of the aortic stump during surgery for acute aortic dissection.

Anastomosis of the fragile aortic wall in patients with acute aortic dissection presents a challenge to cardiovascular surgeons. Reinforcement of the stump is a key to accomplishing successful anastomosis. Surgical glues such as gelatin-resorcin-formalin (GRF) glue and Bioglue are easy to use and have radically changed the process of the reinforcement and reapproximation. However, as surgical glues have been associated with disadvantages such as tissue necrosis, enthusiasm for their use has waned. In this review, we discuss the various methods for reinforcement and reapproximation of the aortic stump during operations for acute aortic dissection, mainly outside the category of surgical glues.

Early Surgery vs. Surgery After Watchful Waiting for Asymptomatic Severe Aortic Stenosis.

BACKGROUND: There is no large-scale study comparing postoperative mortality after aortic valve replacement (AVR) for asymptomatic severe aortic stenosis (AS) between initial treatment with AVR vs. eventual AVR after conservative management. Methods and Results: We analyzed data from a multicenter registry enrolling 3,815 consecutive patients with severe AS. Of 1,808 asymptomatic patients, 286 patients initially underwent AVR (initial AVR group), and 377 patients were initially managed conservatively and eventually underwent AVR (AVR after watchful waiting group). Mortality after AVR was compared between the 2 groups. Subgroup analysis according to peak aortic jet velocity (Vmax) at diagnosis was also conducted. There was no significant difference between the 2 groups in 5-year overall survival (OS; 86.0% vs. 84.1%, P=0.34) or cardiovascular death-free survival (DFS; 91.3% vs. 91.1%, P=0.61), but on subgroup analysis of patients with Vmax ≥4.5 m/s at diagnosis, the initial AVR group was superior to the AVR after watchful waiting group in both 5-year OS (88.4% vs. 70.6%, P=0.003) and cardiovascular DFS (91.9% vs. 81.7%, P=0.023). CONCLUSIONS: Asymptomatic severe AS patients who underwent AVR after watchful waiting had a postoperative survival rate similar to those who initially underwent AVR. In a subgroup of patients with Vmax ≥4.5 m/s at diagnosis, however, the AVR after watchful waiting group had worse postoperative survival rate than the initial AVR group.

[Incidental diagnosis of giant cell arteritis during a hybrid surgical approach in a patient with annuloaortic ectasia and an extensive thoracic aortic aneurysm].

We report a case of giant cell arteritis that was incidentally diagnosed during a hybrid( open surgical and endovascular) approach to an extensive thoracic aortic disease. A 78-year-old man was admitted for the evaluation and treatment of annuloaortic ectasia and an extensive thoracic aortic aneurysm. We performed aortic root replacement (Bentall procedure) and total aortic arch replacement using the elephant trunk technique under hypothermic circulatory arrest. Pathological examination of the aneurysmal wall revealed giant cell arteritis. He had no specific symptoms such as headache, jaw claudication, or vision loss. Because no findings except for a slightly elevated erythrocyte sediment rate were suggestive of active vasculitis, he was discharged from hospital without steroid therapy 6 weeks after open surgery. However, 4 weeks later he returned in hemorrhagic shock due to rupture of a residual descending thoracic aortic aneurysm. He underwent emergency endovascular repair but died intraoperatively. In conclusion, early second-stage procedure and postoperative steroid therapy may be useful in a patient with aortic aneurysm in giant cell arteritis undergoing a hybrid procedure.

Cerebrovascular Disease Detected on Preprocedural Computed Tomography in Patients With Severe Aortic Stenosis Undergoing Aortic Valve Replacement.

BACKGROUND: There is a scarcity of data on the prevalence and clinical impact of cerebrovascular disease detected on preprocedural computed tomography (CT) before aortic valve replacement (AVR) in patients with severe aortic stenosis. METHODS AND RESULTS: Among patients with severe aortic stenosis undergoing AVR, the authors compared clinical outcomes between patients with and without cerebrovascular disease detected on preprocedural CT, which was defined as chronic brain infarction or hemorrhage. The primary outcome measure in this study was a composite of all-cause death or stroke. Among 567 study patients, 200 patients (35.3%) had cerebrovascular disease on preprocedural CT. Among 200 patients with cerebrovascular disease on preprocedural CT, only 28.5% of patients had a clinical history of symptomatic stroke. The cumulative 3-year incidence of death or stroke was higher in patients with cerebrovascular disease on preprocedural CT than in those without cerebrovascular disease on preprocedural CT (40.7% versus 24.1%, log-rank P<0.001). After adjusting for confounders, the higher risk of patients with cerebrovascular disease on preprocedural CT relative to those without remained significant for death or stroke (hazard ratio [HR], 1.42 [95% CI, 1.02-1.98]; P=0.04). Among 200 patients with cerebrovascular disease on preprocedural CT, patients with prior symptomatic stroke compared with those without were not associated with higher adjusted risk for death or stroke (HR, 1.18 [95% CI, 0.72-1.94]; P=0.52). CONCLUSIONS: Among patients with severe aortic stenosis undergoing AVR, a substantial proportion had cerebrovascular disease on preprocedural CT, with a clinical history of symptomatic stroke in one-fourth of patients. Regardless of history of symptomatic stroke, patients with cerebrovascular disease on preprocedural CT had worse clinical outcomes compared with those without cerebrovascular disease on preprocedural CT.

Impact of Transjugular Intracardiac Echocardiography-Guided Self-Expandable Transcatheter Aortic Valve Implantation on Reduction of Conduction Disturbances.

BACKGROUND: A high permanent pacemaker implantation (PPI) risk remains a concern of self-expandable transcatheter aortic valve implantation, despite the continued improvements in implantation methodology. We aimed to assess the impact of real-time direct visualization of the membranous septum using transjugular intracardiac echocardiography (ICE) during transcatheter aortic valve implantation on reducing the rates of conduction disturbances including the need for PPI. METHODS: Consecutive patients treated with Evolut R and Evolut PRO/PRO+ from February 2017 to September 2022 were included in this study. We compared outcomes between the conventional implantation method using the 3-cusps view (3 cusps without ICE group), the recent method using cusp-overlap view (cusp overlap without ICE group), and our novel method using ICE (cusp overlap with ICE group). RESULTS: Of the 446 patients eligible for analysis, 211 (47.3%) were categorized as the 3 cusps without ICE group, 129 (28.9%) were in the cusp overlap without ICE group, and 106 (23.8%) comprised the cusp overlap with ICE group. Compared with the 3 cusps without ICE group, the cusp overlap without ICE group had a smaller implantation depth (2.2 [interquartile range, 1.0-3.5] mm versus 4.3 [interquartile range, 3.3-5.4] mm; P<0.001) and lower 30-day PPI rates (7.0% versus 14.2%; P=0.035). Compared with the cusp overlap without ICE group, the cusp overlap with ICE group had lower 30-day PPI rates (0.9%; P=0.014), albeit with comparable implantation depths (1.9 [interquartile range, 0.9-2.9] mm; P=0.150). Multivariable analysis showed that our novel method using ICE with the cusp-overlap view was independently associated with a 30-day PPI rate reduction. There were no group differences in 30-day all-cause mortality (1.4% versus 1.6% versus 0%; P=0.608). CONCLUSIONS: Our novel implantation method using transjugular ICE, which enable real-time direct visualization of the membranous septum, achieved a predictably high position of prostheses, resulting in a substantial reduction of conduction disturbances requiring PPI after transcatheter aortic valve implantation.

Clinically significant incidental noncardiac findings on preprocedural computed tomography in patients with aortic stenosis undergoing aortic-valve replacement.

BACKGROUND: There is a scarcity of data on the prevalence of abnormal findings on preprocedural computed tomography (CT) before aortic valve replacement (AVR) in patients with aortic stenosis (AS). METHODS: Among consecutive 593 patients with severe AS who were planned to undergo AVR, we evaluated the prevalence of clinically significant incidental noncardiac findings on preprocedural CT. Clinically significant incidental noncardiac findings were defined as newly detected abnormalities that required therapy, consultation for expert, further investigation, or clinical follow-up. RESULTS: The mean age was 82.0 years and 39.5 % of the patients were men. Of those, 78.4 % of the patients were treated with transcatheter aortic valve implantation (TAVI) and 21.6 % of the patients were treated with surgical AVR (SAVR). There were 271 clinically significant incidental noncardiac findings in 227 patients (38.3 %) including 2.5 % of malignancy. The prevalence of clinically significant incidental noncardiac findings were higher in the TAVI group than in the SAVR group (40.2 % versus 31.3 %). The prevalence of clinically significant incidental noncardiac findings were lower in patients under 60 years of age (10.0 %) than in patients over 60 years of age (60-69 years: 40.0 %, 70-79 years: 34.3 %, 80-89 years: 39.7 %, and ≥90 years: 42.1 %). CONCLUSIONS: Clinically significant incidental noncardiac findings were newly identified on preprocedural CT in approximately 40 % of patients with severe AS undergoing AVR including 2.5 % of malignancy.

Assessing Potential Risks of Future Redo Transcatheter Aortic Valve Replacement in Asian Patients.

Background: In the Asian cohort, data are limited on the risk for coronary obstruction due to sinus of Valsalva (SOV) sequestration in redo transcatheter aortic valve replacement (TAVR) procedures. Objectives: The aim of this study was to assess the potential risk for coronary obstruction in simulated redo TAVR in Asian patients. Methods: Post-TAVR computed tomographic data from 788 patients who received balloon-expandable (BE) SAPIEN 3 transcatheter aortic valves (TAVs) and 334 patients who received self-expanding (SE) Evolut R or Evolut PRO TAVs were analyzed. The risk for coronary obstruction due to SOV sequestration in redo TAVR, defined as the TAV commissure level above the sinotubular junction (STJ) and a TAV-to-STJ distance <2.0 mm in each coronary sinus, was retrospectively evaluated. Results: The potential risks for coronary obstruction due to SOV sequestration at 1 or both coronary arteries were identified in 52.1% of the BE TAV group and 71.3% of the SE TAV group (P < 0.001). After adjusting for multiple covariates, STJ diameter, STJ height, TAV oversizing degree by area, and implantation depth were independently associated with SOV sequestration risk in the BE TAV group, whereas STJ diameter and implantation depth were independently associated with SOV sequestration risk in the SE TAV group. Conclusions: Coronary obstruction due to SOV sequestration in redo TAVR may occur in a substantial number of Asian patients. This finding suggests the importance of considering the structural feasibility of future redo TAVR when implanting the first TAV, especially in Asian patients with long life expectancy.

Long-term prognostic value of the H2FPEF score in patients undergoing transcatheter aortic valve implantation.

AIMS: A considerable proportion of candidates for transcatheter aortic valve implantation (TAVI) have underlying heart failure (HF) with preserved ejection fraction (HFpEF), which can be challenging for diagnosis because significant valvular heart disease should be excluded before diagnosing HFpEF. This study investigated the long-term prognostic value of the pre-procedural H2FPEF score in patients with preserved ejection fraction (EF) undergoing TAVI. METHODS AND RESULTS: Patients who underwent TAVI between October 2013 and May 2017 were enrolled from the Optimized CathEter vAlvular iNtervention-Transcatheter Aortic Valve Implantation Japanese multicentre registry. After excluding 914 patients, 1674 patients with preserved EF ≥ 50% (median age: 85 years, 72% female) were selected for calculation of the H2FPEF score and were dichotomized into two groups: the low H2FPEF score [0-5 points; n = 1399 (83.6%)] group and the high H2FPEF score [6-9 points; n = 275 (16.4%)] group. Patients with high H2FPEF scores were associated with a higher prevalence of New York Heart Association Functional Class III/IV (59.3% vs. 43.7%, P < 0.001), diabetes (24.4% vs. 18.5%, P = 0.03), and paradoxical low-flow, low-gradient aortic stenosis (15.9% vs. 6.2%, P < 0.001). These patients showed worse prognoses than those with low H2FPEF scores regarding the cumulative 2 year all-cause mortality (26.3% vs. 15.5%, log-rank P < 0.001), cardiovascular mortality (10.5% vs. 5.4%, log-rank P < 0.001), HF hospitalization (16.2% vs. 6.7%, log-rank P < 0.001), and the composite endpoint of cardiovascular mortality and HF hospitalization (23.8% vs. 10.8%, log-rank P < 0.001). After adjustment for several confounders, the high H2FPEF scores were independently associated with increased risk for all-cause mortality [adjusted hazard ratio (HR), 1.48; 95% confidence interval (CI), 1.09-2.00; P = 0.011] and for the composite endpoint of cardiovascular mortality and HF hospitalization (adjusted HR, 1.95; 95% CI, 1.38-2.74; P < 0.001). Subgroup analysis confirmed the excess risk of high H2FPEF scores relative to low H2FPEF scores for the composite endpoint of cardiovascular mortality and HF hospitalization increased with a lower Society of Thoracic Surgeons (STS) score (STS score <8%: adjusted HR, 2.40; 95% CI, 1.50-3.85; P < 0.001; STS score ≥8%: adjusted HR, 1.34; 95% CI, 0.79-2.28; P = 0.28; Pinteraction = 0.030). CONCLUSIONS: The H2FPEF score is useful for predicting long-term adverse outcomes after TAVI, including all-cause mortality, cardiovascular mortality, and HF hospitalization for patients with preserved EF. More aggressive interventions targeting HFpEF in addition to the TAVI procedure might be relevant in patients with high H2FPEF scores, particularly in those with a lower surgical risk.

In-hospital outcomes after SAVR or TAVI in patients with severe aortic stenosis.

There were no data comparing the in-hospital outcomes after transcatheter aortic valve implantation (TAVI) with those after surgical aortic valve replacement (SAVR) in Japan. Among consecutive patients with severe AS between April 2018 and December 2020 in the CURRENT AS Registry-2, we identified 1714 patients who underwent aortic valve replacement (TAVI group: 1134 patients, and SAVR group: 580 patients). Patients in the TAVI group were much older (84.4 versus 73.6 years, P < 0.001) and more often had comorbidities than those in the SAVR group. In-hospital death rate was numerically lower in the TAVI group than in the SAVR group (0.6% versus 2.2%). After excluding patients with dialysis, in-hospital death rate was very low and comparable in the TAVI and SAVR groups (0.6% versus 0.8%). The rates of major bleeding and new-onset atrial fibrillation during index hospitalization were higher after SAVR than after TAVI (72% versus 20%, and 26% versus 4.6%, respectively), while the rate of pacemaker implantation was higher after TAVI than after SAVR (8.1% versus 2.4%). Regarding the echocardiographic data at discharge, the prevalence of patient-prosthesis mismatch was lower in the TAVI group than in the SAVR group (moderate: 9.0% versus 26%, and severe: 2.6% versus 4.8%). In this real-world data in Japan, TAVI compared with SAVR was chosen in much older patients with more comorbidities with severe AS. In-hospital death rate was numerically lower in the TAVI group than in the SAVR group.

Prognostic significance of baseline low-density lipoprotein cholesterol in patients undergoing coronary revascularization; a report from the CREDO-Kyoto registry.

BACKGROUND: The impact of very low baseline levels of low-density lipoprotein cholesterol (LDL-C) on patients with coronary artery disease remains unclear. METHOD: We enrolled 39,439 patients of the pooled population from the CREDO-Kyoto registries Cohorts 1, 2, and 3. The study population consisted of 33,133 patients who had undergone their first coronary revascularization. We assessed the risk for mortality and cardiovascular events according to quintiles of the baseline LDL-C levels. RESULTS: Patients in the very low LDL-C quintile (<85 mg/dL) had more comorbidities than those in the other quintiles. Lower LDL-C levels were strongly associated with anemia, thrombocytopenia, and end-stage renal disease. The cumulative 4-year incidence of all-cause death increased as LDL-C levels decreased (very low: 19.4 %, low: 14.5 %, intermediate: 11.1 %, high: 10.0 %, and very high: 9.2 %; p < 0.001), which was driven by both the early and late events. After adjusting for baseline characteristics, the adjusted risks of the very low and low LDL-C quintiles relative to the intermediate LDL-C quintile remained significant for all-cause death (very low: HR 1.29, 95 % CI 1.16-1.44, p < 0.001; low: HR 1.15, 95 % CI 1.03-1.29, p = 0.01). The excess adjusted risks of the lowest LDL-C quintile relative to the intermediate LDL-C quintile were significant for clinical outcomes such as cardiovascular death (HR 1.17, 95 % CI 1.01-1.35), non-cardiovascular death (HR 1.35, 95 % CI 1.15-1.60), sudden death (HR 1.44, 95 % CI 1.01-2.06), and heart failure admission (HR 1.11 95 % CI 1.01-1.22), while there was no excess risk for the lowest LDL-C quintile relative to the intermediate LDL-C quintile for myocardial infarction and stroke. CONCLUSIONS: Lower baseline LDL-C levels were associated with more comorbidities and a significantly higher risk of death, regardless of cardiovascular or non-cardiovascular causes, in patients who underwent coronary revascularization.