Frequency and Significance of Coronary Artery Disease and Myocardial Bridging in Patients With Hypertrophic Cardiomyopathy.


  • 影响因子:2.86
  • DOI:10.1016/j.amjcard.2020.02.002
  • 作者列表:"van der Velde N","Huurman R","Yamasaki Y","Kardys I","Galema TW","Budde RP","Zijlstra F","Krestin GP","Schinkel AF","Michels M","Hirsch A
  • 发表时间:2020-05-01

:The etiology of chest pain in hypertrophic cardiomyopathy (HC) is diverse and includes coronary artery disease (CAD) as well as HC-specific causes. Myocardial bridging (MB) has been associated with HC, chest pain, and accelerated atherosclerosis. We compared HC patients with age-, gender- and CAD pre-test probability-matched outpatients presenting with chest pain to investigate differences in the presence of MB and CAD using coronary computed tomography angiography (CCTA). We studied 84 HC patients who underwent CCTA and compared these with 168 matched controls (age 54 ± 11 years, 70% men, pre-test probability 12% [5% to 32%]). MB, calcium score, plaque morphology and presence and extent of CAD were assessed for each patient. Linear mixed models were used to assess differences between cases and controls. MB was more often seen in HC patients (50% vs 25%, p <0.001). Calcium score and the presence of obstructive CAD were similar in both groups (9 [0 to 225] vs 4 [0 to 82] and 18% vs 19%; p = 0.22 and p = 0.82). In the HC group, MB was associated with pathogenic DNA variants (p = 0.04), but not with the presence of chest pain (74% vs 76%, p = 0.8), nor with worse outcome (log-rank p = 0.30). In conclusion, the prevalence and extent of CAD was equal among patients with and without HC, demonstrating that pre-test risk prediction using the CAD Consortium clinical risk score performs well in HC patients. MB was twice as prevalent in the HC group compared with matched controls, but was not associated with chest pain or decreased event-free survival in these patients.


肥厚型心肌病 (HC) 胸痛的病因是多种多样的,包括冠状动脉疾病 (CAD) 以及HC特异性病因。心肌桥 (MB) 与HC、胸痛和加速动脉粥样硬化有关。我们比较了年龄、性别和CAD测试前概率匹配的门诊患者,这些患者表现为胸痛,以使用冠状动脉计算机断层扫描血管造影术 (CCTA) 研究MB和CAD存在的差异。我们研究了84例接受CCTA的HC患者,并将其与168例匹配的对照 (年龄54 ± 11岁,70% 例男性,测试前概率12% [5% ~ 32%]) 进行了比较。对每个患者的MB、钙评分、斑块形态以及CAD的存在和程度进行评估。使用线性混合模型来评估病例和对照之间的差异。MB多见于HC患者 (50% vs 25%,p <0.001)。两组的钙评分和阻塞性CAD的存在相似 (9 [0 ~ 225] vs 4 [0 ~ 82] 和18% vs 19%; P   =   0.22和p   =   0.82)。HC组,MB与致病性DNA变体 (p  =   0.04),而与存在胸痛 (74% vs 76%,p  =   0.8),也与不良预后 (log-rank p  =   0.30).总之,在有HC和没有HC的患者中,CAD的患病率和程度是相等的,这表明使用CAD联盟临床风险评分的测试前风险预测在HC患者中表现良好。与匹配的对照组相比,MB在HC组中的发生率是对照组的两倍,但与这些患者的胸痛或无事件生存率降低无关。



作者列表:["Kisamori E","Otani S","Yamamoto T","Nishiki M","Yamada Y","Matsumoto T"]

METHODS::Relapsing polychondritis is a rare multi-system disease characterized by inflammation in cartilaginous structures and other connective tissues. Cardiovascular complications occur in 10-51% of the patients. We report a case of concomitant aortic valve replacement, mitral valve replacement, and coronary artery bypass grafting in a patient with relapsing polychondritis. A 71-year-old female with relapsing polychondritis on prednisolone (5 mg/day) for 15 years presented at our hospital for further evaluation of valvular disease. Severe aortic stenosis and severe mitral regurgitation were diagnosed. We performed aortic and mitral valve replacement. During surgery, we found connective tissue surrounding the intima of the sinus of Valsalva and stenosis of the right coronary artery ostium, which was not noted on preoperative coronary angiography. We removed the tissue and performed bypass grafting to the right coronary artery. Postoperative recovery was uneventful, and she was discharged 27 days after surgery.

作者列表:["Tang PC","Haft JW","Romano MA","Bitar A","Hasan R","Palardy M","Wu X","Aaronson KD","Pagani FD"]

METHODS:BACKGROUND:The effect of significant mitral regurgitation (MR) on outcomes after continuous flow left ventricular assist device (cfLVAD) implantation remains unclear. METHODS:We performed a retrospective review of prospectively collected data from 159 patients with preoperative severe MR who underwent cfLVAD implantation (2003-2017). Two-step cluster analysis using the log-likelihood distance for post-cfLVAD implantation parameters, which included right ventricular (RV) dysfunction, MR severity, and tricuspid regurgitation (TR) severity. Post-cfLVAD implantation echocardiographic parameters were obtained within the first month. RESULTS:Cluster analysis resulted in 3 groups. Group 1 (n = 67) had mild or less MR with moderate-severe RV dysfunction (RVD). Group 2 (n = 43) had moderate-severe MR with moderate-severe RVD. Group 3 (n = 49) had moderate MR with mild RVD. Group 2 had the largest proportion with Interagency Registry for Mechanically Assisted Circulatory Support score of 1 (30.2%) and 2 (41.9%). They were more likely to undergo temporary mechanical circulatory support (18.6%) and tricuspid valve procedure (62.8%). Group 2 had the highest rate of stroke (30.2%; P = .02), hemolysis (39.5%; P = .01), device thrombosis (30%; P = .01), and worst survival (46.5%; P = .01). Survival at 5 years for groups 1, 2, and 3 were 56.0%, 17.6%, and 55.8%. Regression analysis of the entire population showed that greater MR severity after cfLVAD was associated with RV failure (P < .05; odds ratio, 1.6) and RV assist device use (P = .09; odds ratio, 1.6). After excluding tricuspid valve repairs, MR severity had a positive correlation with TR severity (R = 0.33; P < .01). CONCLUSIONS:After cfLVAD implantation, moderate-severe MR and RVD predicted RV failure. Patients with preoperative moderate-severe MR and TR coupled with moderate-severe RVD might benefit the most from mitral and tricuspid valve intervention.

作者列表:["Bo M","Bergamo D","Calvi E","Iacovino M","Falcone Y","Grisoglio E","Salizzoni S"]

METHODS:BACKGROUND:Among elderly with severe aortic stenosis (AS), Comprehensive Geriatric Assessment (CGA) originally contributed to address to transcatheter aortic valve implantation (TAVI) patients not suitable to surgical aortic valve replacement(SAVR). Nevertheless, TAVI has recently been proposed also in lower surgical risk patients. AIMS:To evaluate predictors of TAVI procedure and clinical outcomes among these patients. METHODS:For each patient ≥ 65 years with severe AS referring to our Cardiac Surgery Division, CGA was performed, including functional and cognitive status, comorbidity burden, frailty, nutritional status, gait speed, hand-grip strength and number of medications. Surgical risk was evaluated according to the Society of Thoracic Surgeons (STS) score (low-risk < 4%). Post-procedural outcomes (30-day survival and post-procedural complications) were obtained by medical records and a one-year follow-up assessed survival, and functional and cognitive performance. RESULTS:Among 154 subjects (mean age 82.9 years), 52 were at low-risk according to STS score. 32 patients were addressed to TAVI, 20 to SAVR. Variables significantly associated with TAVI-approach were lower gait speed (p 0.030) and higher number of medications (p 0.015). Short and long-term outcomes did not differ between groups. DISCUSSION:Among CGA variables, gait speed and number of medications were associated with the decision to perform TAVI instead of SAVR, even in patients at low surgical risk. 30-day and one-year survival and one-year functional and cognitive decline were similar between groups, despite a relevant prevalence of frailty in the TAVI group. CONCLUSIONS:We suggest that gait speed and number of medications should be considered in selecting appropriate candidates to TAVI among low surgical risk patients.