Publications by authors named "Sjauw K"

Backgrounds: Post-dilatation after stenting with a non-compliant (NC) balloon can be used to improve overall percutaneous coronary intervention (PCI) result. Due to lack of evidence on the effect of post-dilatation on adverse clinical endpoints there is no consensus whether post-dilatation should be used routinely. The aim of the current study was to determine the contemporary practice of post-dilatation.

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Background: Women are underrepresented In cardiovascular disease research, constituting only 30 % of the cardiogenic shock (CS) population. Consequently, guidelines are mainly based on male patients. This study aims to comprehensively examine the sex-specific aspects of acute myocardial infarction (AMI)-related CS, encompassing presentation, treatment and outcomes.

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Computed tomography-derived fractional flow reserve (CT-FFR) enhances the specificity of coronary computed tomography angiography (CCTA) to that of the most specific non-invasive imaging techniques, while maintaining high sensitivity in stable coronary artery disease (CAD). As gatekeeper for invasive coronary angiography (ICA), use of CT-FFR results in a significant reduction of negative ICA procedures and associated costs and complications, without increasing cardiovascular events. It is expected that CT-FFR algorithms will continue to improve, regarding accuracy and generalisability, and that introduction of new features will allow further treatment guidance and reduced invasive diagnostic testing.

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Article Synopsis
  • Mortality rates in patients with cardiogenic shock due to acute myocardial infarction (AMICS) remain high, prompting research into how prehospital symptom duration affects patient outcomes.
  • A study analyzed data from 1,363 AMICS patients, revealing that longer symptom durations significantly increased the 30-day mortality rates, especially for those with symptoms lasting over 24 hours.
  • The findings highlight the importance of early identification and intervention, suggesting that prolonged symptoms are a strong predictor of poor survival rates in AMICS patients, particularly those receiving mechanical circulatory support.
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Aims: The optimal vascular access site for percutaneous coronary interventions (PCIs) in patients with acute myocardial infarction (AMI) complicated by cardiogenic shock (CS) remains uncertain. While observational data favour transradial access (TRA) due to lower complication rates and mortality, transfemoral access (TFA) PCI offers advantages such as shorter access and procedure times, along with quicker escalation to mechanical circulatory support (MCS). In this study, we aimed to investigate factors associated with a transfemoral approach and compare mortality rates between TRA and TFA in AMI-CS patients undergoing PCI.

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Article Synopsis
  • - Cardiogenic shock (CS) following acute myocardial infarction (AMI) leads to high rates of morbidity and mortality, with a study examining 2328 patients revealing a 30-day mortality rate of 39% and common characteristics among non-survivors.
  • - Patients who did not survive presented with lower blood pressure, higher heart rates, elevated blood lactate and glucose levels, and a greater prevalence of conditions like diabetes and prior coronary events.
  • - The study found that while a significant percentage of patients received mechanical support (mainly through intra-aortic balloon pumps) and vasoactive agents, and many underwent multivessel percutaneous coronary intervention (PCI), these treatments were administered despite limited evidence supporting their effectiveness in improving survival.
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Background: Angina without angiographic evidence of obstructive coronary artery disease (ANOCA) is a highly prevalent condition with insufficient pathophysiological knowledge and lack of evidence-based medical therapies. This affects ANOCA patients prognosis, their healthcare utilization and quality of life. In current guidelines, performing a coronary function test (CFT) is recommended to identify a specific vasomotor dysfunction endotype.

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  • This study aimed to compare two types of mechanical circulatory support (MCS) systems, Impella CP and VA-ECMO, in patients undergoing complex high-risk PCI procedures.
  • Researchers analyzed data from 41 patients who could not undergo surgery, with no significant differences found in hemodynamic stability or major adverse cardiac events between the two groups.
  • The findings suggest that the choice between Impella CP and VA-ECMO does not significantly impact patient outcomes, including mortality rates.
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Article Synopsis
  • Patients with complex coronary artery disease who are not candidates for traditional surgery may benefit from high-risk percutaneous coronary intervention (PCI) using the Impella CP device for improved outcomes.
  • A study involving 27 high-risk patients showed a 30-day mortality rate of 7.4% and a complication rate of 37% for major adverse cardiac events (MACE), indicating notable risks but feasible results.
  • The Impella CP provided effective hemodynamic support without significant kidney function decline during the procedure, suggesting it is a viable option for this difficult patient population.
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Aims: To assess differences in long-term outcome and functional status of patients with cardiogenic shock (CS) treated by percutaneous mechanical circulatory support (pMCS) and intra-aortic balloon pump (IABP).

Methods And Results: Long-term follow-up of the multicentre, randomized IMPRESS in Severe Shock trial (NTR3450) was performed 5-year after initial randomization. Between 2012 and 2015, a total of 48 patients with severe CS from acute myocardial infarction (AMI) with ST-segment elevation undergoing immediate revascularization were randomized to pMCS by Impella CP (n = 24) or IABP (n = 24).

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Article Synopsis
  • The study investigates the effects of percutaneous coronary intervention (PCI) versus medical therapy on patients with positive fractional flow reserve (FFR) and preserved coronary flow reserve (CFR), suggesting that not all positive FFR lesions require invasive treatment.
  • It analyzed data from a trial involving STEMI patients to evaluate how the combination of FFR and coronary flow metrics affects long-term health outcomes, specifically major adverse cardiac and cerebrovascular events (MACCE).
  • Results showed no significant difference in MACCE rates between patients with various CFR levels, but those with preserved CFR treated medically faced higher event rates than those treated with PCI, highlighting potential benefits of PCI in certain cases.
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Article Synopsis
  • * Data from the Netherlands Heart Registration (NHR) revealed that out of 75,407 ACS patients, 3028 (4.1%) had CS, with a consistent incidence rate over four years.
  • * The research identified key predictors of mortality in CS patients, including older age, renal function, diabetes, multivessel disease, previous heart attacks, and out-of-hospital cardiac arrest.
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Objective: To assess whether combining venoarterial extracorporeal membrane oxygenation (VA-ECMO) with intra-aortic balloon pump (IABP) improves outcomes in ST-segment elevation myocardial infarction (STEMI) over VA-ECMO alone.

Background: VA-ECMO is an upcoming technique in the treatment of cardiogenic shock (CS); however, it increases afterload. IABP + VA-ECMO has been suggested to reduce afterload and increase survival.

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Spontaneous coronary artery dissection (SCAD) is a rare cause of myocardial infarction, presenting mostly in healthy, young women. The pathogenesis is still poorly understood. A 45-year-old woman presented with an ST-elevation myocardial infarction, caused by SCAD of the mid left anterior descending coronary artery.

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Background: In selected patients with an acute myocardial infarction (AMI) complicated by Cardiogenic shock (CS), mechanical circulatory support with Impella may be beneficial, although conclusive evidence is still lacking. Nevertheless, it has been suggested that Impella initiation prior to primary PCI might improve survival.

Objective: To investigate the effect pre-PCI versus immediate post-PCI Impella initiation on short term mortality.

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Background: Microvascular dysfunction in the setting of ST-segment myocardial infarction (STEMI) is thought to be related to stress-related metabolic changes, including acute glucose intolerance. The aim of this study was to assess the relationship between admission glucose levels and microvascular function in non-diabetic STEMI patients.

Methods: 92 consecutive patients with a first anterior-wall STEMI treated with primary percutaneous coronary intervention (PPCI) were enrolled.

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Purpose: Complex high-risk percutaneous coronary intervention (PCI) is challenging and frequently accompanied by haemodynamic instability. Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) can provide cardiopulmonary support in high-risk PCI. However, the outcome is unclear.

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Background: Interventional cardiologists are inevitably exposed to low-dose radiation, and consequently are at risk for radiation induced diseases like cataract and left-sided brain tumours. Operator behaviour may possibly be the largest influencer on radiation exposure. We hypothesised that awareness regarding radiation exposure grows as skill and the general experience in the catheterization laboratory increase.

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Vasospastic angina (VSA) is considered a broad diagnostic category including documented spontaneous episodes of angina pectoris produced by coronary epicardial vasospasm as well as those induced during provocative coronary vasospasm testing and coronary microvascular dysfunction due to microvascular spasm. The hallmark feature of VSA is rest angina, which promptly responds to short-acting nitrates; however, VSA can present with a great variety of symptoms, ranging from stable angina to acute coronary syndrome and even ventricular arrhythmia. VSA is more prevalent in females, who can present with symptoms different from those among male patients.

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Article Synopsis
  • The study investigates the outcomes and complications associated with the use of Impella mechanical circulatory support in patients experiencing cardiogenic shock after acute myocardial infarction over a 12-year period.
  • A total of 172 patients were treated with Impella, showing high short-term mortality rates of 56.2% at 30 days and 60.7% at 6 months, alongside various complications such as vascular issues and bleeding.
  • The analysis identified that pre-treatment pH levels are a significant predictor of 6-month mortality in these patients, indicating a need for more targeted interventions.
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Objectives: The authors sought to evaluate the relative performance of a drug-eluting balloon (DEB) and a drug-eluting stent (DES) in patients with any (bare-metal or drug-eluting stent) in-stent restenosis (ISR).

Background: The treatment of ISR remains challenging in contemporary clinical practice.

Methods: In a multicenter randomized noninferiority trial, patients with any ISR were randomly allocated in a 1:1 fashion to treatment with a DEB (SeQuent Please paclitaxel-eluting balloon, B.

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Background: Coronary artery spasm may be the underlying mechanism in up to 10% of cases of acute coronary syndrome (ACS) and sudden cardiac death. Asian individuals exhibit a 3-times greater incidence of spasm than Caucasians; this is likely due to different types of mechanisms. Consequently, solid data is limited about the long-term prognosis in Caucasian patients presenting with ACS and/or out-of-hospital cardiac arrest (OHCA) caused by coronary spasm.

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Background: Interventional cardiologists are increasingly exposed to radiation-induced diseases like cataract and the stochastic risk of left-sided brain tumors. The RADPAD is a sterile, disposable, lead-free shield placed on the patient with the aim to minimize operator-received scatter radiation. The objective of the trial was to examine the RADPAD's efficacy in a real-world situation.

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Background: The Navvus pressure sensor-equipped microcatheter allows to measure functional stenosis severity over a work-horse guidewire and is used as a more feasible alternative to regular sensor-equipped wires. However, Navvus is larger in diameter than contemporary sensor-equipped guidewires and may, thereby, influence functional measurements. The present study evaluates the hemodynamic influence of the Navvus microcatheter.

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