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1.
Article in English | MEDLINE | ID: mdl-38754724

ABSTRACT

OBJECTIVE: Patients with symptomatic lower extremity arterial disease (LEAD) are recommended to receive antiplatelet therapy, while direct oral anticoagulants (DOACs) are standard for stroke prevention in patients with atrial fibrillation (AF). For patients with concomitant LEAD and AF, data comparing dual antithrombotic therapy (an antiplatelet agent used in conjunction with a DOAC) vs. DOAC monotherapy are scarce. This retrospective cohort study, based on data from the Taiwan National Health Insurance Research Database, aimed to compare the efficacy and safety of these antithrombotic strategies. METHODS: Patients with AF who underwent revascularisation for LEAD between 2012 - 2020 and received any DOAC within 30 days of discharge were included. Patients were grouped by antiplatelet agent exposure into the dual antithrombotic therapy and DOAC monotherapy groups. Inverse probability of treatment weighting was used to mitigate selection bias. Major adverse limb events (MALEs), ischaemic stroke or systemic embolism, and bleeding outcomes were compared. Patients were followed until the occurrence of any study outcome, death, or up to two years. RESULTS: A total of 1 470 patients were identified, with 736 in the dual antithrombotic therapy group and 734 in the DOAC monotherapy group. Among them, 1 346 patients received endovascular therapy as the index revascularisation procedure and 124 underwent bypass surgery. At two years, dual antithrombotic therapy was associated with a higher risk of MALEs than DOAC monotherapy (subdistribution hazard ratio [SHR] 1.34, 95% confidence interval [CI] 1.15 - 1.56), primarily driven by increased repeat revascularisation. Dual antithrombotic therapy was also associated with a higher risk of major bleeding (SHR 1.43, 95% CI 1.05 - 1.94) and gastrointestinal bleeding (SHR 2.17, 95% CI 1.42 - 3.33) than DOAC monotherapy. CONCLUSION: In patients with concomitant LEAD and AF who underwent peripheral revascularisation, DOAC monotherapy was associated with a lower risk of MALEs and bleeding events than dual antithrombotic therapy.

2.
Acta Cardiol Sin ; 40(1): 50-59, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38264076

ABSTRACT

Background: Left atrial strain can usefully reflect left atrial function. The follow-up periods in previous studies assessing left atrial strain as a survival predictor have been relatively short, and few studies have examined the ability of left atrial strain to predict mortality in patients with borderline diastolic function. This study sought to investigate the survival predictive value of left atrial strain with a longer follow-up duration. In addition, we also evaluated the survival predictive value of left atrial strain in patients with borderline diastolic function. Methods: In total, 652 participants who received routine echocardiography underwent 2-D speckle tracking echocardiography to evaluate left atrial reservoir function by peak atrial longitudinal strain. The study endpoints were all-cause and cardiovascular mortality. Results: The mean left atrial strain was 27.6%, and the median follow-up duration was 92 months. During follow-up, 72 patients died of cardiovascular causes and 181 died of all causes. Univariable Cox regression analysis revealed that lower left atrial strain significantly predicted an increase in all-cause and cardiovascular mortality. After adjusting for common clinical and echocardiographic parameters, lower left atrial strain was still associated with a higher risk of all-cause mortality [hazard ratio (HR) = 0.942, p = 0.011] and cardiovascular mortality (HR = 0.915, p = 0.018) in multivariable Cox-regression analysis. In addition, 293 patients had borderline left ventricular diastolic function. Multivariable analysis still revealed that left atrial strain could predict cardiovascular mortality in this population. Conclusions: Our data showed that left atrial strain could predict all-cause and cardiovascular mortality, even after adjusting for general clinical and echocardiographic parameters.

3.
Acta Cardiol Sin ; 40(1): 1-44, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38264067

ABSTRACT

The Taiwan Society of Cardiology (TSOC) and Taiwan Society of Plastic Surgery (TSPS) have collaborated to develop a joint consensus for the management of patients with advanced vascular wounds. The taskforce comprises experts including preventive cardiologists, interventionists, and cardiovascular and plastic surgeons. The consensus focuses on addressing the challenges in diagnosing, treating, and managing complex wounds; incorporates the perfusion evaluation and the advanced vascular wound care team; and highlights the importance of cross-disciplinary teamwork. The aim of this joint consensus is to manage patients with advanced vascular wounds and encourage the adoption of these guidelines by healthcare professionals to improve patient care and outcomes. The guidelines encompass a range of topics, including the definition of advanced vascular wounds, increased awareness, team structure, epidemiology, clinical presentation, medical treatment, endovascular intervention, vascular surgery, infection control, advanced wound management, and evaluation of treatment results. It also outlines a detailed protocol for assessing patients with lower leg wounds, provides guidance on consultation and referral processes, and offers recommendations for various wound care devices, dressings, and products. The 2024 TSOC/TSPS consensus for the management of patients with advanced vascular wounds serves as a catalyst for international collaboration, promoting knowledge exchange and facilitating advancements in the field of advanced vascular wound management. By providing a comprehensive and evidence-based approach, this consensus aims to contribute to improved patient care and outcomes globally.

4.
Acta Cardiol Sin ; 39(1): 97-108, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36685160

ABSTRACT

Peripheral artery disease (PAD) imposes a heavy burden of major adverse cardiovascular events that are associated with considerable mortality and morbidity, and major adverse limb events (e.g., thrombectomy, revascularization, amputation) that can substantially impact patients' daily functioning and quality of life. Global registry data have indicated that PAD is an underdiagnosed disease in Taiwan, and its associated risk factors remain inadequately controlled. This review discusses the burden of PAD in Taiwan, major guidelines on PAD management, and the latest clinical trial outcomes. Practical experience, opinions, and the latest trial data were integrated to derive a series of clinical algorithms - patient referral, PAD diagnosis, and the antithrombotic management of PAD. These algorithms can be adapted not only by physicians in Taiwan involved in the clinical management of patients with PAD but also by general practitioners in local clinics and regional hospital settings, with the ultimate aim of improving the totality of PAD patient care in Taiwan.

5.
Acta Cardiol Sin ; 39(1): 4-96, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36685161

ABSTRACT

Coronary artery disease (CAD) covers a wide spectrum from persons who are asymptomatic to those presenting with acute coronary syndromes (ACS) and sudden cardiac death. Coronary atherosclerotic disease is a chronic, progressive process that leads to atherosclerotic plaque development and progression within the epicardial coronary arteries. Being a dynamic process, CAD generally presents with a prolonged stable phase, which may then suddenly become unstable and lead to an acute coronary event. Thus, the concept of "stable CAD" may be misleading, as the risk for acute events continues to exist, despite the use of pharmacological therapies and revascularization. Many advances in coronary care have been made, and guidelines from other international societies have been updated. The 2023 guidelines of the Taiwan Society of Cardiology for CAD introduce a new concept that categorizes the disease entity according to its clinical presentation into acute or chronic coronary syndromes (ACS and CCS, respectively). Previously defined as stable CAD, CCS include a heterogeneous population with or without chest pain, with or without prior ACS, and with or without previous coronary revascularization procedures. As cardiologists, we now face the complexity of CAD, which involves not only the epicardial but also the microcirculatory domains of the coronary circulation and the myocardium. New findings about the development and progression of coronary atherosclerosis have changed the clinical landscape. After a nearly 50-year ischemia-centric paradigm of coronary stenosis, growing evidence indicates that coronary atherosclerosis and its features are both diagnostic and therapeutic targets beyond obstructive CAD. Taken together, these factors have shifted the clinicians' focus from the functional evaluation of coronary ischemia to the anatomic burden of disease. Research over the past decades has strengthened the case for prevention and optimal medical therapy as central interventions in patients with CCS. Even though functional capacity has clear prognostic implications, it does not include the evaluation of non-obstructive lesions, plaque burden or additional risk-modifying factors beyond epicardial coronary stenosis-driven ischemia. The recommended first-line diagnostic tests for CCS now include coronary computed tomographic angiography, an increasingly used anatomic imaging modality capable of detecting not only obstructive but also non-obstructive coronary plaques that may be missed with stress testing. This non-invasive anatomical modality improves risk assessment and potentially allows for the appropriate allocation of preventive therapies. Initial invasive strategies cannot improve mortality or the risk of myocardial infarction. Emphasis should be placed on optimizing the control of risk factors through preventive measures, and invasive strategies should be reserved for highly selected patients with refractory symptoms, high ischemic burden, high-risk anatomies, and hemodynamically significant lesions. These guidelines provide current evidence-based diagnosis and treatment recommendations. However, the guidelines are not mandatory, and members of the Task Force fully realize that the treatment of CCS should be individualized to address each patient's circumstances. Ultimately, the decision of healthcare professionals is most important in clinical practice.

6.
Int J Med Sci ; 18(1): 65-72, 2021.
Article in English | MEDLINE | ID: mdl-33390774

ABSTRACT

No study has investigated the predictive ability of ankle-brachial index (ABI) calculated using diastolic blood pressure (DBP) (ABIdbp) and mean arterial pressure (MAP) (ABImap) for overall and cardiovascular (CV) mortality in hemodialysis (HD) patients. Our study was aimed to investigate the issue. Two hundred and seven routine HD patients were enrolled. ABI values were measured by ABI-form device. During the follow-up period (122 months), 124 of the 207 patients (59.0%) died, and 59 deaths due to CV cause. Multivariate analysis showed that low ABIsbp, ABIdbp, and ABImap were all significantly associated with increased overall (p ≤ 0.015) and CV mortality (p ≤ 0.015) in whole study patients. A subgroup analysis after excluding 37 patients with ABIsbp < 0.9 or > 1.3 found ABIsbp and ABIsbp < 0.9 were not associated with overall and CV mortality. However, ABImap and ABIdbp < 0.87 were significantly associated with overall mortality (p ≤ 0.042). Furthermore, ABIdbp and ABIdbp < 0.87 were significantly associated with CV mortality (p ≤ 0.030). In conclusion, ABIsbp, ABIdbp, and ABImap were all useful in predicting overall and CV mortality in our HD patients. In the subgroup patients with normal ABIsbp, ABIsbp and ABIsbp < 0.9 were not useful to predict overall and CV mortality. Nevertheless, ABImap and ABIdbp < 0.87 could still predict overall mortality, and ABIdbp and ABIdbp < 0.87 could predict CV mortality. Hence, calculating ABI using DBP and MAP may provide benefit in survival prediction in HD patients, especially in the patients with normal ABIsbp.


Subject(s)
Ankle Brachial Index/methods , Kidney Failure, Chronic/complications , Peripheral Arterial Disease/mortality , Adult , Aged , Arterial Pressure/physiology , Blood Pressure Determination , Cause of Death , Diastole/physiology , Feasibility Studies , Female , Follow-Up Studies , Humans , Kidney Failure, Chronic/mortality , Kidney Failure, Chronic/therapy , Male , Middle Aged , Peripheral Arterial Disease/etiology , Predictive Value of Tests , Renal Dialysis/adverse effects , Risk Assessment/methods , Risk Factors
7.
Int J Med Sci ; 18(1): 276-283, 2021.
Article in English | MEDLINE | ID: mdl-33390796

ABSTRACT

Abnormal low and high ankle brachial index (ABI) is regarded as peripheral artery disease (PAD) which has extremely high morbidity and mortality. How to identify high-risk PAD patients with increased mortality is very important to improve the outcome. CHADS2, R2CHADS2, and CHA2DS2-VASc score are clinically useful scores to evaluate the annual risk of stroke in patients with atrial fibrillation. However, there was no literature discussing the usefulness of these scores for cardiovascular (CV) and all-cause mortality prediction in the patients with abnormal ABI. This longitudinal study enrolled 195 patients with abnormal low (< 0.9) and high ABI (> 1.3). CHADS2, R2CHADS2, and CHA2DS2-VASc score were calculated for each patient. CV and all-cause mortality data were collected for outcome prediction. The median follow-up to mortality was 90 months. After multivariate analysis, CHADS2, R2CHADS2, and CHA2DS2-VASc score were significant predictors of CV and all-cause mortality (all P < 0.001). CHA2DS2-VASc score had a better additive predictive value than CHADS2 and R2CHADS2 score for CV mortality prediction. R2CHADS2 and CHA2DS2-VASc score had better additive predictive values than CHADS2 score for all-cause mortality prediction. In conclusion, our study is the first study to investigate the usefulness of CHADS2, R2CHADS2, and CHA2DS2-VASc score for mortality prediction in patients with abnormal ABI. Our study showed all three scores are significant predictors for CV and all-cause mortality although there are some differences between the scores. Therefore, using the three scoring systems may help physicians to identify the high-risk PAD patients with increased mortality.


Subject(s)
Ankle Brachial Index , Atrial Fibrillation/epidemiology , Peripheral Arterial Disease/mortality , Stroke/epidemiology , Aged , Aged, 80 and over , Feasibility Studies , Female , Follow-Up Studies , Humans , Longitudinal Studies , Male , Middle Aged , Peripheral Arterial Disease/diagnosis , Predictive Value of Tests , Prognosis , ROC Curve , Risk Assessment/methods , Risk Factors
8.
Acta Cardiol Sin ; 37(3): 261-268, 2021 May.
Article in English | MEDLINE | ID: mdl-33976509

ABSTRACT

BACKGROUND: CHA2DS2-VASc score is a useful score to evaluate the risk of stroke in patients with atrial fibrillation (AF), and it has been shown to outperform CHADS2 score. Our recent cross-sectional study showed that CHA2DS2-VASc score was associated with an ankle-brachial index < 0.9. The aim of the current study was to evaluate whether CHA2DS2-VASc score is a useful predictor of new-onset peripheral artery occlusive disease (PAOD) and whether it can outperform CHADS2 and R2CHADS2 scores. METHODS: We used the National Health Insurance Research Database to survey 723750 patients from January 1, 2000 to December 31, 2001. CHADS2, R2CHADS2, and CHA2DS2-VASc scores were calculated for every patient. Finally, 280176 (score 0), 307209 (score 1), 61093 (score 2), 35594 (score 3), 18956 (score 4), 11032 (score 5), 6006 (score 6), 2696 (score 7), 843 (score 8), and 145 (score 9) patients were studied and followed to evaluate new-onset PAOD. We further divided the study patients into six groups: group 1 (score 0), group 2 (score 1-2), group 3 (score 3-4), group 4 (score 5-6), group 5 (score 7-8), and group 6 (score 9). RESULTS: Overall, 24775 (3.4%) patients experienced new-onset PAOD during 9.8 years of follow-up. The occurrence rate of PAOD increased from 1.3% (group 1) to 23.4% (group 6). Subgroup analysis by gender also showed an association between CHA2DS2-VASc score and the occurrence rate of PAOD. After multivariate analysis, groups 2-6 were significantly associated with new-onset PAOD. CHA2DS2-VASc score also outperformed CHADS2 and R2CHADS2 scores for predicting new-onset PAOD. CONCLUSIONS: CHA2DS2-VASc score was a more powerful predictor of new-onset PAOD than CHADS2 and R2CHADS2 scores in patients without AF.

9.
Int J Med Sci ; 17(10): 1300-1306, 2020.
Article in English | MEDLINE | ID: mdl-32624684

ABSTRACT

Four-limb blood pressure measurement could improve mortality prediction in the elderly. However, there was no study to evaluate whether such measurement was still useful in predicting overall and cardiovascular (CV) mortality in acute myocardial infarction (AMI). Two hundred AMI patients admitted to cardiac care unit were enrolled. The 4-limb blood pressures, inter-limb blood pressure differences, and ankle brachial index (ABI) were measured using an ABI-form device. The median follow-up to mortality was 64 months (25th-75th percentile: 5-174 months). There were 40 and 138 patients documented as CV and overall mortality, respectively. After multivariable adjustment, the ankle diastolic blood pressure (DBP) on the lower side, ABI value, ABI < 0.9, interarm DBP difference, interankle systolic blood pressure (SBP) and DBP differences, interankle SBP difference ≥ 15 mmHg, and interankle DBP difference ≥ 10 mmHg could predict overall mortality (P ≤ 0.025). The ankle DBP on the lower side, interankle DBP difference, and interankle DBP difference ≥ 10 mmHg could predict CV mortality (P ≤ 0.031). In addition, in the Nested Cox model, the model including the ankle DBP on the lower side and the model including interankle DBP difference had the best value for overall and CV mortality prediction, respectively (P ≤ 0.031). In AMI patients, 4-limb blood pressure measurement could generate several useful parameters in predicting overall and CV mortality. Furthermore, ankle DBP on the lower side and interankle DBP difference were the most powerful parameters in prediction of overall and CV mortality, respectively.


Subject(s)
Blood Pressure/physiology , Hypertension/physiopathology , Myocardial Infarction/physiopathology , Aged , Aged, 80 and over , Ankle Brachial Index , Female , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Multivariate Analysis , Myocardial Infarction/mortality , Pulse Wave Analysis
10.
Int J Med Sci ; 17(10): 1340-1344, 2020.
Article in English | MEDLINE | ID: mdl-32624690

ABSTRACT

Based on clinical presentation, pathophysiology, high infectivity, high cardiovascular involvement, and therapeutic agents with cardiovascular toxicity of coronavirus disease 2019 (COVID-19), regular cardiovascular treatment is being changing greatly. Despite angiotensin-converting enzyme 2 serving as the portal for infection, the continuation of clinically indicated renin-angiotensin-aldosterone blockers is recommended according to the present evidence. Fibrinolytic therapy can be considered a reasonable option for the relatively stable ST segment elevation myocardial infarction (STEMI) patient with suspected or known COVID-19. However, primary percutaneous coronary intervention is still the standard of care in patients with definite STEMI if personal protective equipment is available and cardiac catheterization laboratory has a good infection control. In patients with elevated cardiac enzymes, it is very important to differentiate patients with Type 2 myocardial infarction or myocarditis from those with true acute coronary syndromes because invasive percutaneous intervention management in the former may be unnecessary, especially if they are hemodynamically stable. Finally, patients with baseline QT prolongation or those taking QT prolonging drugs must be cautious when treating with lopinavir/ritonavir and hydroxychloroquine for COVID-19.


Subject(s)
Coronavirus Infections/complications , Heart Diseases/therapy , Pandemics , Pneumonia, Viral/complications , COVID-19 , Cardiac Catheterization , Heart Diseases/virology , Humans , Infection Control
11.
Acta Cardiol Sin ; 36(6): 562-582, 2020 Nov.
Article in English | MEDLINE | ID: mdl-33235412

ABSTRACT

Pulmonary embolism (PE) is a potential life-threatening condition and risk-adapted diagnostic and therapeutic management conveys a favorable outcome. For patients at high risk for early complications and mortality, prompt exclusion or confirmation of PE by imaging is the key step to initiate and facilitate reperfusion treatment. Among patients with hemodynamic instability, systemic thrombolysis improves survival, whereas surgical embolectomy or percutaneous intervention are alternatives in experienced hands in scenarios where systemic thrombolysis is not the best preferred thromboreduction measure. For patients with suspected PE who are not at high risk for early complications and mortality, the organized approach using a structured evaluation system to assess the pretest probability, the age-adjusted D-dimer cut-offs, the appropriate selection of imaging tools, and proper interpretation of imaging results is important when deciding the allocation of treatment strategies. Patients with PE requires anticoagulation treatment. In patients with cancer and thrombosis, low-molecular-weight heparin (LMWH) used to be the standard regimen. Recently, three factor Xa inhibitors collectively show that non-vitamin K oral anticoagulants (NOACs) are as effective as LMWH in four randomized clinical trials. Therefore, NOACs are suitable and preferred in most conditions. Finally, chronic thromboembolic pulmonary hypertension is the most disabling long-term complication of PE. Because of its low incidence, the extra caution should be given when managing patients with PE.

12.
Int J Med Sci ; 15(11): 1235-1240, 2018.
Article in English | MEDLINE | ID: mdl-30123062

ABSTRACT

Aims: The renal systolic time intervals (STIs), including renal pre-ejection period (PEP), renal ejection time (ET), and renal PEP/renal ET measured by renal Doppler ultrasound, were associated with poor cardiac function and adverse cardiac outcomes. However, the relationship between renal hemodynamic parameters and arterial stiffness in terms of brachial-ankle pulse wave velocity (baPWV) has never been evaluated. The aim of this study was to assess the relationship between renal STIs and baPWV. Methods: This cross-sectional study enrolled 230 patients. The renal hemodynamics was measured from Doppler ultrasonography and baPWV was measured from ABI-form device by an oscillometric method. Results: Patients with baPWV ≧ 1672 cm/s had a higher value of renal resistive index (RI) and lower values of renal PEP and renal PEP/ET (all P< 0.001). In univariable analysis, baPWV was significantly associated with renal RI, renal PEP, and renal PEP/renal ET (all P< 0.001). In multivariable analysis, renal PEP (unstandardized coefficient ß = -3.185; 95% confidence interval = -5.169 to -1.201; P = 0.002) and renal PEP/renal ET (unstandardized coefficient ß = -5.605; 95% CI = -10.217 to -0.992; P = 0.018), but not renal RI, were still the independent determinants of baPWV. Conclusion: Our results found that renal PEP and renal PEP/renal ET were independently associated with baPWV. Hence, renal STIs measured from renal echo may have a significant correlation with arterial stiffness.


Subject(s)
Ankle Brachial Index , Systole , Aged , Blood Pressure , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Pulse Wave Analysis , Vascular Stiffness
14.
Acta Cardiol Sin ; 32(1): 103-7, 2016 Jan.
Article in English | MEDLINE | ID: mdl-27122938

ABSTRACT

UNLABELLED: Areca nut chewing is one of the most prevalent substance abuse habits in the world, and it is associated with the risk of a variety of medical challenges including hypertension, arrhythmia, and coronary artery disease (CAD). However, ST elevation myocardial infarction (STEMI) is an extremely rare complication of areca nut chewing. Herein we report two cases where patients suffered from STEMI after areca nut chewing. The first case involved a patient with non-obstructive CAD and non-sustained ventricular tachycardia during hospitalization. The second case revealed left circumflex artery total occlusion, and primary percutaneous coronary intervention was performed. Initially, the levels of arecoline and arecaidine plasma were checked in these two cases after admission. Although both cases revealed increased levels, the second case showed substantially higher values than the first case. In general, these two cases remind physicians that areca nut chewing may cause myocardial injury with different severity, although STEMI with true coronary obstruction remains an extremely rare but possible complication after areca nut chewing. KEY WORDS: Areca nut chewing; Coronary obstruction; ST elevation myocardial infarction.

16.
Acta Cardiol Sin ; 32(1): 49-54, 2016 Jan.
Article in English | MEDLINE | ID: mdl-27122930

ABSTRACT

BACKGROUND: Left ventriculography (LVG) is a gold standard examination of left ventricular function, although it also involves a small but significant risk of complications. However, it was recently reported to be overused in the USA in comparison to an alternative imaging modality. In this study, our aim was to analyze the real-world use of LVG in Taiwan. METHODS: This cohort study analyzed the data in the Taiwan National Health Insurance Bureau database for patients undergoing coronary angiography from 1996-2008. The most recent imaging modalities were used to evaluate left ventricular function including echocardiography and single-photon emission computed tomography (SPECT) within 30-day. The primary outcome was the concomitant use of LVG during coronary angiography. RESULTS: Of 8653 patients who underwent coronary angiography, LVG was performed on 4634 (53.6%) of those study participants. The frequency of LVG use was lower in the groups indicating left ventricular function evaluation, including acute myocardial infarction, heart failure and shock (49.5 vs. 57.1%, p < 0.001). In the population that had undergone a recent left ventricular assessment, the use of LVG was lower (52.2% vs. 54.7%, p = 0.03). Multivariate analysis found that 30-day imaging tests are not a predictor for use of LVG. CONCLUSIONS: In Taiwan, about one half of those patients whose data we reviewed actually received coronary angiography and LVG at the same time. Ultimately, we found that there was no overuse of LVG in those patients with recent alternative imaging modality performed. KEY WORDS: Angiography; Coronary; Ventriculography.

17.
Acta Cardiol Sin ; 32(5): 616-618, 2016 Sep.
Article in English | MEDLINE | ID: mdl-27713612

ABSTRACT

A 66-year-old male was treated percutaneously for a bifurcation lesion of the left anterior descending coronary artery by provisional stenting using the jailed wire technique. After successfully stenting the main branch, retraction of the looped main branch guidewire was impossible. After using an intravascular ultrasound we discovered the guidewire was entangled with a stent strut. Thereafter, the proximal stent elongated after retraction. With the support of an over-the-wire microcatheter, we finally pulled out the entrapped guidewire. This rare complication should remind physicians that it is important to prevent the distal guidewire from being looped while retracting it through a stent, regardless of whether it is in the side branch or main vessel. If the guidewire becomes entangled with a stent, a microcatheter or low-profile balloon can be advanced to rescue it before the stent is damaged. Furthermore, the microcather should be maintained after successful retraction of the entangled guidewire to facilitate further wiring and subsequent rescue angioplasty as necessary.

18.
Int J Med Sci ; 12(8): 618-24, 2015.
Article in English | MEDLINE | ID: mdl-26283880

ABSTRACT

BACKGROUND: Anemia and echocardiographic systolic and diastolic parameters are useful predictors of cardiovascular outcomes in patients with atrial fibrillation (AF). However, no studies have evaluated the use of anemia for predicting cardiovascular outcome in AF patients when the important echocardiographic parameters are known. Therefore, this study was designed to evaluate whether low hemoglobin is a useful parameter for predicting poor cardiac outcome after adjustment for important echocardiographic parameters in AF patients. METHODS: Index beat method was used to measure echocardiographic parameters in 166 patients with persistent AF. Cardiac events were defined as death and hospitalization for heart failure. The association of hemoglobin with adverse cardiac events was assessed by Cox proportional hazards model. RESULTS: The 49 cardiac events identified in this population included 21 deaths and 28 hospitalizations for heart failure during an average follow-up of 20 months (25th-75th percentile: 14-32 months). Multivariable analysis showed that increased left ventricular mass index (LVMI) and decreased body mass index, estimated glomerular filtration rate, and hemoglobin (hazard ratio 0.827; P = 0.015) were independently associated with increased cardiac events. Additionally, tests of a Cox model that included important clinic variables, LVMI, left ventricular ejection fraction, and the ratio of transmitral E-wave velocity to early diastolic mitral annulus velocity showed that including hemoglobin significantly increased value in predicting adverse cardiac events (P = 0.010). CONCLUSIONS: Hemoglobin is a useful parameter for predicting adverse cardiac events, and including hemoglobin may improve the prognostic prediction of conventional clinical and echocardiographic parameters in patients with AF.


Subject(s)
Anemia/complications , Anemia/diagnosis , Atrial Fibrillation/blood , Atrial Fibrillation/complications , Aged , Anticoagulants/chemistry , Diastole , Echocardiography , Female , Glomerular Filtration Rate , Hemoglobins/analysis , Hemoglobins/chemistry , Hospitalization , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Multivariate Analysis , Predictive Value of Tests , Proportional Hazards Models , Prospective Studies , Systole , Treatment Outcome
19.
Acta Cardiol Sin ; 31(2): 175-8, 2015 Mar.
Article in English | MEDLINE | ID: mdl-27122868

ABSTRACT

UNLABELLED: Simultaneous stent thrombosis (ST) of first-generation drug-eluting stents (DES) has been rarely reported and could lead to high morbidity and mortality. However, to date there was no literature discussing simultaneous ST of different new-generation DESs in multiple coronary arteries. Herein, we report a 60-year-old male suffering from acute myocardial infarction complicated with cardiogenic shock. He had percutaneous coronary intervention (PCI) performed approximately 7 days prior to admission at a local teaching hospital, with different DES devices implanted over the left anterior descending and the left circumflex artery. Emergency coronary angiography revealed simultaneous subacute ST over both vessels. After PCI, there was a gradual improvement in both cardiogenic shock and acute pulmonary edema. High dose clopidogrel (150 mg) was used initially, which was later shifted to ticagrelor. Genetic testing of CYP2C19*2 G681A polymorphism revealed heterozygous genotype and platelet function testing showed substantial inhibition after a medication change. This rare case should remind physicians that new-generation DES thrombosis in multiple vessels is still a possible complication of PCI, and checking genetic and/or platelet function testing might be indicated in these high risk patients. The use of a new antiplatelet drug was also strongly suggested to avoid possible clopidogrel resistance. KEY WORDS: Clopidogrel resistance; Drug-eluting stents; Genetic testing; Platelet function; Stent thrombosis.

20.
Acta Cardiol Sin ; 31(2): 91-7, 2015 Mar.
Article in English | MEDLINE | ID: mdl-27122854

ABSTRACT

BACKGROUND: Both inflammation and chronic kidney disease (CKD) are related to cardiovascular disease. Whether inflammatory biomarkers are associated with impaired glomerular filtration rate (GFR) is unclear in hypertensives. METHODS: We recruited hypertension patients from the cardiovascular clinic of a tertiary medical center in Taiwan. GFR was calculated using the 7-item Modification of Diet in Renal Disease (MDRD) study equation and impaired GFR (IGFR) was defined as GFR less than 60 ml/min/1.73 m(2). High-sensitivity C-reactive protein (hsCRP) kits were used for the measurement of the CRP levels. RESULTS: In our study, 572 consecutive hypertensive patients were enrolled. The range of patient age was 26-91 years (mean 60.5 ± 11.7), and hsCRP and GFR ranged from 0.01 to 9.99 mg/L and 16.6 to 239.6 ml/min//1.73 m(2), respectively. HsCRP levels were correlated with GFR (p = 0.01) and the presence of IGFR (p = 0.009). Multivariate regression analysis showed hsCRP (p = 0.03), age (p < 0.001) and urinary albumin-to-creatinine ratio (UACR) (p = 0.002) are independent factors associated with GFR. Furthermore, hsCRP levels [odds ratio (OR) = 1.16, 95% CI = 1.03-1.31, p = 0.02], age (OR = 1.09, 95% CI = 1.07-1.12, p < 0.001), and UACR (OR = 1.02, 95% CI = 1.01-1.04, p < 0.001) independently predicted the presence of IGFR using binary logistic regression analysis. CONCLUSIONS: Information obtained from our study showed that hsCRP is associated with IGFR in hypertensives. KEY WORDS: Chronic kidney disease; C-reactive protein; Glomerular filtration rate; Hypertension; Inflammation.

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