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1.
Int J Cardiol ; 405: 131940, 2024 Jun 15.
Article in English | MEDLINE | ID: mdl-38458385

ABSTRACT

BACKGROUND: As life expectancy increases, the population of older individuals with coronary artery disease and frailty is growing. We aimed to assess the impact of patient-reported frailty on the treatment and prognosis of elderly early survivors of non-ST-elevation acute coronary syndrome (NSTE-ACS). METHODS: Frailty data were obtained from two prospective trials, POPular Age and the POPular Age Registry, which both assessed elderly NSTE-ACS patients. Frailty was assessed one month after admission with the Groningen Frailty Indicator (GFI) and was defined as a GFI-score of 4 or higher. In these early survivors of NSTE-ACS, we assessed differences in treatment and 1-year outcomes between frail and non-frail patients, considering major adverse cardiovascular events (MACE, including cardiovascular mortality, myocardial infarction, and stroke) and major bleeding. RESULTS: The total study population consisted of 2192 NSTE-ACS patients, aged ≥70 years. The GFI-score was available in 1320 patients (79 ± 5 years, 37% women), of whom 712 (54%) were considered frail. Frail patients were at higher risk for MACE than non-frail patients (9.7% vs. 5.1%, adjusted hazard ratio [HR] 1.57, 95% confidence interval [CI] 1.01-2.43, p = 0.04), but not for major bleeding (3.7% vs. 2.8%, adjusted HR 1.23, 95% CI 0.65-2.32, p = 0.53). Cubic spline analysis showed a gradual increase of the risk for clinical outcomes with higher GFI-scores. CONCLUSIONS: In elderly NSTE-ACS patients who survived 1-month follow-up, patient-reported frailty was independently associated with a higher risk for 1-year MACE, but not with major bleeding. These findings emphasize the importance of frailty screening for risk stratification in elderly NSTE-ACS patients.


Subject(s)
Acute Coronary Syndrome , Frail Elderly , Frailty , Humans , Aged , Female , Male , Frailty/epidemiology , Frailty/diagnosis , Acute Coronary Syndrome/epidemiology , Aged, 80 and over , Prospective Studies , Frail Elderly/statistics & numerical data , Registries , Patient Reported Outcome Measures , Follow-Up Studies , Treatment Outcome , Non-ST Elevated Myocardial Infarction/epidemiology , Non-ST Elevated Myocardial Infarction/mortality
2.
Neth Heart J ; 29(11): 557-565, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34232481

ABSTRACT

Recently, the European Society of Cardiology (ESC) has updated its guidelines for the management of patients with acute coronary syndrome (ACS) without ST-segment elevation. The current consensus document of the Dutch ACS working group and the Working Group of Interventional Cardiology of the Netherlands Society of Cardiology aims to put the 2020 ESC Guidelines into the Dutch perspective and to provide practical recommendations for Dutch cardiologists, focusing on antiplatelet therapy, risk assessment and criteria for invasive strategy.

3.
BMC Cardiovasc Disord ; 21(1): 292, 2021 06 12.
Article in English | MEDLINE | ID: mdl-34118880

ABSTRACT

BACKGROUND: Despite the advances of potent oral P2Y12 inhibitors, their onset of action is delayed, which might have a negative impact on clinical outcome in patients undergoing percutaneous coronary intervention (PCI). Trials conducted in the United States of America have identified cangrelor as a potent and rapid-acting intravenous P2Y12 inhibitor, which has the potential of reducing ischemic events in these patients without an increase in the bleeding. As cangrelor is rarely used in The Netherlands, we conducted a nationwide registry to provide an insight into the use of cangrelor in the management of patients with suboptimal platelet inhibition undergoing (primary) PCI (the Dutch Cangrelor Registry). STUDY DESIGN: The Cangrelor Registry is a prospective, observational, multicenter, single-arm registry with cangrelor administered pre-PCI in: (1) P2Y12 naive patients with ad-hoc PCI, (2) patients with STEMI/NSTEMI with suboptimal P2Y12 inhibition including (3) stable resuscitated/defibrillated patients with out-of-hospital cardiac arrest (OHCA) due to acute ischemia and (4) STEMI/NSTEMI patients with a high thrombotic burden. Primary endpoint is 48 h Net Adverse Clinical Events (NACE), which is a composite endpoint of all-cause death, recurrent myocardial infarction (MI), target vessel revascularization (TVR), stroke, stent thrombosis (ST) and BARC 2-3-5 bleeding. The Dutch Cangrelor Registry will assess the feasibility and safety of cangrelor in patients with suboptimal P2Y12 inhibition undergoing (primary) PCI in the setting of acute coronary syndrome (ACS) and stable coronary artery disease (CAD) in the Netherlands.


Subject(s)
Adenosine Monophosphate/analogs & derivatives , Myocardial Ischemia/therapy , Percutaneous Coronary Intervention , Platelet Aggregation Inhibitors/therapeutic use , Purinergic P2Y Receptor Antagonists/therapeutic use , Research Design , Adenosine Monophosphate/adverse effects , Adenosine Monophosphate/therapeutic use , Feasibility Studies , Humans , Myocardial Ischemia/diagnostic imaging , Netherlands , Patient Safety , Percutaneous Coronary Intervention/adverse effects , Platelet Aggregation Inhibitors/adverse effects , Prospective Studies , Purinergic P2Y Receptor Antagonists/adverse effects , Registries , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
5.
Cardiovasc Diabetol ; 19(1): 165, 2020 10 02.
Article in English | MEDLINE | ID: mdl-33008407

ABSTRACT

BACKGROUND: Several studies compared everolimus-eluting bioresorbable scaffolds (EE-BRS) with everolimus-eluting stents (EES), but only few assessed these devices in patients with diabetes mellitus. AIM: To evaluate the safety and efficacy outcomes of all-comer patients with diabetes mellitus up to 2 years after treatment with EE-BRS or EES. METHODS: We performed a post hoc pooled analysis of patient-level data in diabetic patients who were treated with EE-BRS or EES in 3 prospective clinical trials: The ABSORB DM Benelux Study (NTR5447), TWENTE (NTR1256/NCT01066650) and DUTCH PEERS (NTR2413/NCT01331707). Primary endpoint of the analysis was target lesion failure (TLF): a composite of cardiac death, target vessel myocardial infarction or clinically driven target lesion revascularization. Secondary endpoints included major adverse cardiac events (MACE): a composite of all-cause death, any myocardial infarction or clinically driven target vessel revascularization, as well as definite or probable device thrombosis (ST). RESULTS: A total of 499 diabetic patients were assessed, of whom 150 received EE-BRS and 249 received EES. Total available follow-up was 222.6 patient years (PY) in the EE-BRS and 464.9 PY in the EES group. The adverse events rates were similar in both treatment groups for TLF (7.2 vs. 5.2 events per 100 PY, p = 0.39; adjusted hazard ratio (HR) = 1.48 (95% confidence interval (CI): 0.77-2.87), p = 0.24), MACE (9.1 vs. 8.3 per 100 PY, p = 0.83; adjusted HR = 1.23 (95% CI: 0.70-2.17), p = 0.47), and ST (0.9 vs. 0.6 per 100 PY, p > 0.99). CONCLUSION: In this patient-level pooled analysis of patients with diabetes mellitus from 3 clinical trials, EE-BRS showed clinical outcomes that were quite similar to EES.


Subject(s)
Absorbable Implants , Cardiovascular Agents/administration & dosage , Coronary Artery Disease/therapy , Diabetes Mellitus , Drug-Eluting Stents , Everolimus/administration & dosage , Percutaneous Coronary Intervention/instrumentation , Aged , Cardiovascular Agents/adverse effects , Clinical Trials as Topic , Coronary Artery Disease/diagnostic imaging , Coronary Artery Disease/mortality , Diabetes Mellitus/diagnosis , Diabetes Mellitus/mortality , Everolimus/adverse effects , Female , Humans , Male , Middle Aged , Percutaneous Coronary Intervention/adverse effects , Prosthesis Design , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
6.
Neth Heart J ; 28(10): 520-525, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32333256

ABSTRACT

BACKGROUND: Transcatheter aortic valve replacement (TAVR) is increasingly being used as an alternative to conventional surgical valve replacement. Prosthetic valve endocarditis (PVE) is a rare but feared complication after TAVR, with reported first-year incidences varying from 0.57 to 3.1%. This study was performed to gain insight into the incidence and outcome of PVE after TAVR in the Netherlands. METHODS: A multicentre retrospective registry study was performed. All patients who underwent TAVR in the period 2010-2017 were screened for the diagnosis of infective endocarditis in the insurance database and checked for the presence of PVE before analysis of general characteristics, PVE parameters and outcome. RESULTS: A total of 3968 patients who underwent TAVR were screened for PVE. During a median follow-up of 33.5 months (interquartile range (IQR) 22.8-45.8), 16 patients suffered from PVE (0.4%), with a median time to onset of 177 days (IQR 67.8-721.3). First-year incidence was 0.24%, and the overall incidence rate was 0.14 events per 1000 person-years. Overall mortality during follow-up in our study was 31%, of which 25% occurred in hospital. All patients were treated conservatively with intravenous antibiotics alone, and none underwent a re-intervention. Other complications of PVE occurred in 5 patients (31%) and included aortic abscess (2), decompensated heart failure (2) and cerebral embolisation (1). CONCLUSION: PVE in patients receiving TAVR is a relatively rare complication and has a high mortality rate.

7.
Neth Heart J ; 27(11): 541-549, 2019 Nov.
Article in English | MEDLINE | ID: mdl-31197750

ABSTRACT

BACKGROUND: Diabetes mellitus (DM) patients show higher rates of repeat revascularisation even in the era of modern drug-eluting stents (DES). The concept of bioresorbable scaffolds is becoming captivating, as it might allow for repeat interventions, prolonging the time span during which patients can be treated by percutaneous coronary intervention (PCI). AIMS: We intend to evaluate the short- and long-term safety and efficacy of Absorb bioresorbable vascular scaffolds (Absorb BVS) in the treatment of coronary artery disease (CAD) in DM patients for any indication. METHODS: The ABSORB DM Benelux is an international prospective study in DM patients who have undergone PCI with ≥1 Absorb BVS. Major adverse cardiac events (MACE) at 1 year was the primary endpoint, defined as a composite of all-cause death, any myocardial infarction (MI) and ischaemia-driven target vessel revascularisation (TVR). Secondary endpoints were target lesion failure (TLF) and definite or probable scaffold thrombosis (ScT). RESULTS: Between April 2015 and March 2017, 150 DM patients and 188 non-complex lesions were treated. Device implantation was successful in 100%. MACE occurred in 14 (9.5%) patients, with all-cause death occurring in 4 (2.7%), any MI in 6 (4.1%) and ischaemia-driven TVR in 7 (4.8%) respectively. TLF was reported in 11 (7.5%). Definite and probable ScT was observed in 2 (1.4%). CONCLUSION: Absorb BVS for treatment of anatomically low-risk patients with DM show acceptable safety and efficacy outcomes at 1 year. If these promising results are confirmed after a longer follow-up period, new-generation bioresorbable scaffolds combined with refinement of implantation techniques might open new horizons for CAD treatment in DM patients.

8.
Neth Heart J ; 27(9): 453, 2019 Sep.
Article in English | MEDLINE | ID: mdl-31073741
9.
Cardiovasc Diabetol ; 18(1): 25, 2019 03 09.
Article in English | MEDLINE | ID: mdl-30851731

ABSTRACT

BACKGROUND: Percutaneous coronary intervention (PCI) in patients with diabetes mellitus (DM) remains challenging even with modern drug-eluting stents (DES) due to high rates of repeat revascularization. Everolimus-eluting bioresorbable scaffolds (EE-BRS) might allow for repeat intervention prolonging the time interval of percutaneous treatment options. METHODS: The ABSORB DM Benelux Study is a dedicated prospective, international study to evaluate the midterm safety and efficacy of EE-BRS in DM patients. All DM patients that received ≥ 1 EE-BRS for any indication were enrolled and prospectively followed. Study endpoints were major adverse cardiac events (MACE): a composite of all-cause death, any myocardial infarction (MI) and ischemic-driven target vessel revascularization (TVR); target lesion failure (TLF): a composite of cardiac death (CD), target vessel MI, and ischemic-driven target lesion revascularization (TLR), as well as definite or probable scaffold thrombosis (ScT). RESULTS: Between April 2015 till March 2017, 150 DM patients and 188 lesions were treated and followed up to 3 years. Device implantation success was 100%. MACE occurred in 15.2% (event rate of 8.8 per 100 PY). TLF was reported in 11.7% (7.0 events per 100 PY). CD, target vessel MI, ischemic-driven TLR occurred in 3.4%, 3.6% and 5.5% respectively, while ScT was observed in 1.4%. There were no occurrences of late or very late ScT. CONCLUSION: EE-BRS treatment in DM patients shows comparable midterm safety and efficacy outcomes when historically compared with modern DES. New-generation EE-BRS might offer an attractive alternative to metallic DES in treatment of fast progressing atherosclerosis population as in DM patients. Trial registration NTR5447. Registered 05 October 2015, retrospectively registered.


Subject(s)
Absorbable Implants , Cardiovascular Agents/administration & dosage , Coated Materials, Biocompatible , Coronary Artery Disease/surgery , Diabetes Mellitus/epidemiology , Everolimus/administration & dosage , Percutaneous Coronary Intervention/instrumentation , Aged , Cardiovascular Agents/adverse effects , Coronary Artery Disease/diagnostic imaging , Coronary Artery Disease/mortality , Coronary Thrombosis/epidemiology , Diabetes Mellitus/diagnosis , Diabetes Mellitus/mortality , Europe/epidemiology , Everolimus/adverse effects , Female , Follow-Up Studies , Humans , Male , Middle Aged , Myocardial Infarction/epidemiology , Percutaneous Coronary Intervention/adverse effects , Percutaneous Coronary Intervention/mortality , Prospective Studies , Prosthesis Design , Registries , Risk Factors , Time Factors , Treatment Outcome
10.
Neth Heart J ; 27(4): 185-190, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30767166

ABSTRACT

BACKGROUND: Fast and accurate platelet inhibition is an important therapeutic goal in the acute treatment of patients with ST-elevation myocardial infarction (STEMI). Platelet inhibitory effects induced by oral P2Y12-receptor antagonists are delayed in STEMI patients undergoing primary percutaneous coronary intervention (PCI) due to haemodynamic changes and delayed gastro-intestinal absorption. Concomitant use of opioids, although recommended in the American College of Cardiology/American Heart Association and European Society of Cardiology STEMI guidelines, further delays gastro-intestinal absorption. To date, trials investigating alternative analgesics in STEMI patients have been scarce. This trial aims to assess the feasibility of a novel drug strategy for treatment of STEMI patients with crushed ticagrelor in combination with paracetamol (acetaminophen) instead of opioids. HYPOTHESIS: STEMI patients who are pre-treated with crushed ticagrelor and paracetamol have a higher level of platelet inhibition after primary PCI than patients pre-treated with crushed ticagrelor and fentanyl. STUDY DESIGN: The Opioids aNd crushed Ticagrelor In Myocardial infarction Evaluation (ON-TIME 3) trial is a randomised controlled trial designed to examine whether administration of paracetamol instead of fentanyl can optimise platelet inhibition in STEMI patients who are pre-treated with crushed ticagrelor in the ambulance. One hundred and ninety patients with STEMI will be randomised (1:1 fashion) to intravenous (IV) fentanyl or IV paracetamol. The primary endpoint is the level of platelet reactivity units measured immediately after primary PCI. The ON-TIME 3 trial (NCT03400267) aims to achieve optimal platelet inhibition and pain relief in STEMI patients receiving crushed ticagrelor in the ambulance by investigating IV fentanyl and IV paracetamol as analgesics.

11.
Neth Heart J ; 27(2): 73-80, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30547413

ABSTRACT

BACKGROUND: An early invasive strategy (EIS) is recommended in high-risk patients with non-ST-elevation acute coronary syndrome (NSTE-ACS), defined as coronary angiography (CAG), within 24 h of admission. The aim of the present study is to investigate guideline adherence, patient characteristics associated with timing of the intervention and clinical outcome. METHODS: In a prospective registry, the use and timing of CAG and the characteristics and clinical outcome associated with timing were evaluated in high-risk ACS patients. The outcome of early versus delayed invasive strategy (DIS) was compared. RESULTS: Between 2006 and 2014, 2,299 high-risk NSTE-ACS patients were included. The use of CAG increased from 77% in 2006 to 90% in 2014 (p trend <0.001) together with a decrease of median time to CAG from 23.3 to 14.5 h (p trend <0.001) and an increase of patients undergoing EIS from 50 to 60% (p trend = 0.002). Patient factors independently related to DIS were higher GRACE risk score, higher age and the presence of comorbidities. No difference was found in incidence of mortality, reinfarction or bleeding at 30-day follow-up. All-cause mortality at 1­year follow-up was 4.1% vs 7.0% in EIS and DIS respectively (hazard ratio 1.67, 95% confidence interval 1.12-2.49) but was comparable after adjustment for confounding factors. CONCLUSION: The percentage of high-risk NSTE-ACS patients undergoing CAG and EIS has increased in the last decade. In contrast to the guidelines, patients with a higher risk profile are less likely to undergo EIS. However, no difference in outcome after 30 days and 1 year was found after multivariate adjustment for this higher risk.

12.
Int J Cardiol ; 265: 12-17, 2018 Aug 15.
Article in English | MEDLINE | ID: mdl-29731349

ABSTRACT

BACKGROUND: The no-reflow phenomenon is a serious complication after primary percutaneous coronary intervention (PCI) for ST-elevation Myocardial Infarction (STEMI). Coronary artery ectasia (CAE) may increase the risk of no-reflow, however, only limited data is available on the potential impact of CAE. The aim of this study was to determine the potential association between CAE and no-reflow after primary PCI. METHODS: A case control study was performed based on a prospective cohort of STEMI patients from January 2000 to December 2011. All patients with TIMI 0-1 flow post primary PCI, in the absence of dissection, thrombus, spasm or high-grade residual stenosis, were considered as no-reflow case. Control subjects were two consecutive STEMI patients after each case, with TIMI flow ≥2 after primary PCI. CAE was defined as dilatation of an arterial segment to a diameter at least 1.5 times that of the adjacent normal coronary artery. RESULTS: In the no-reflow group, frequency of CAE was significantly higher (33.8% vs 3.9%, p < 0.001) compared to the control group. Baseline variables were comparable between patients with and without CAE. Patients with CAE had more often TIMI 0-1 flow pre-PCI (91% vs 71% p = 0.03), less often anterior STEMI (3% vs 37%, p < 0.001) and underwent significantly less often a PCI with stenting (47% vs 74%, p = 0.003). After multivariate analysis, CAE remained a strong and independent predictor of no-reflow (OR 13.9, CI 4.7-41.2, p < 0.001). CONCLUSION: CAE is a strong and independent predictor of no-reflow after primary PCI for STEMI. Future studies should assess optimal treatment.


Subject(s)
Coronary Vessels/diagnostic imaging , No-Reflow Phenomenon/diagnostic imaging , Percutaneous Coronary Intervention/trends , ST Elevation Myocardial Infarction/diagnostic imaging , ST Elevation Myocardial Infarction/surgery , Aged , Case-Control Studies , Cohort Studies , Dilatation, Pathologic/diagnostic imaging , Dilatation, Pathologic/etiology , Female , Humans , Male , Middle Aged , No-Reflow Phenomenon/etiology , Percutaneous Coronary Intervention/adverse effects , Predictive Value of Tests , Prospective Studies , Retrospective Studies
13.
Neth Heart J ; 26(6): 296-310, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29687412

ABSTRACT

Antithrombotic therapy is an essential component in the optimisation of clinical outcomes in patients with ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention. There are currently several intravenous anticoagulant drugs available for primary percutaneous coronary intervention. Dual antiplatelet therapy comprising aspirin and P2Y12 inhibitor represents the cornerstone treatment for STEMI. However, these effective treatment strategies may be associated with bleeding complications. Compared with clopidogrel, prasugrel and ticagrelor are more potent and predictable, which translates into better clinical outcomes. Therefore, these agents are the first-line treatment in primary percutaneous coronary intervention. However, patients can still experience adverse ischaemic events, which might be in part attributed to alternative pathways triggering thrombosis. In this review, we provide a critical and updated review of currently available antithrombotic therapies used in patients with STEMI undergoing primary PCI. Finding a balance that minimises both thrombotic and bleeding risk is difficult, but crucial. Further randomised trials for this optimal balance are needed.

14.
Neth Heart J ; 25(11): 611-617, 2017 Nov.
Article in English | MEDLINE | ID: mdl-28913627

ABSTRACT

BACKGROUND: Recent evidence has raised concerns regarding the safety of the everolimus-eluting bioresorbable vascular scaffold (E-BVS) (Absorb, Abbott Vascular, Santa Clara, CA, USA). Following these data, the use of this device has diminished in the Netherlands; however, daily practice data are limited. Therefore we studied the incidence of safety and efficacy outcomes with this device in daily clinical practice in a single large tertiary centre in the Netherlands. METHODS: All E­BVS treated patients were included in this analysis. The primary endpoint was target lesion failure (TLF), a composite of cardiac death, target vessel non-fatal myocardial infarction (TV-MI) and clinically-driven target lesion revascularisation (TLR). The secondary endpoint was the incidence of definite scaffold thrombosis. RESULTS: Between October 2013 and January 2017, 105 patients were treated with 147 E­BVS. This population contained 42 (40%) patients with diabetes mellitus and 43 (40.9%) undergoing treatment for acute coronary syndrome, and thus represents a high-risk patient cohort. Mean follow-up was 19.8 months. Intravascular imaging guidance during scaffold implantation was used in 64/105 (43.5%) patients. The primary endpoint (TLF) occurred in 3 (2.9%) patients. All-cause mortality and cardiac mortality occurred in 2 (2%) and 0 (0%) patients respectively. TV-MI occurred in 2 patients (1.9%): both were periprocedural and not related to the BVS implantation. TLR occurred in 1 patient (1.0%) during follow-up. No definite scaffold thrombosis occurred during follow-up. CONCLUSION: This single-centre study examining the real-world experience of E­BVS implantation in a high-risk population shows excellent procedural safety and long-term clinical outcomes.

15.
Neth Heart J ; 25(1): 33-39, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27561283

ABSTRACT

AIM: This study sought to assess whether radial artery access improves clinical outcomes in patients presenting with acute myocardial infarction compared with femoral artery access. METHODS: This is a single-centre, prospective observational registry of all STEMI and NSTEMI patients who underwent coronary angiography and/or primary PCI in the period January 2010 to December 2013. Primary endpoint was 30-day all-cause mortality. Choice of access was left to the discretion of the cardiologist. Differences in the risk of death at 30 days between patients undergoing transradial intervention versus transfemoral intervention was assessed on an intention-to-treat comparison. RESULTS: Retrospective analysis of prospectively collected data was performed in 3580 patients with an acute coronary syndrome who underwent coronary angiography, of which 1310 had radial artery access. PCI was performed in 77 % of the patients. Before propensity score matching, patients who underwent transradial intervention and those intended to undergo transfemoral approach differed significantly in intra-aortic balloon pump use (1.7 % vs. 6.7 %, p < 0.001), and Killip class (Killip 1: 10.8 % vs. 17.3 %, p < 0.001). 30-day mortality rates were 1.7 % in the transradial group and 4.6 % in the transfemoral group (p < 0.001). After matching on the propensity score, the hazard ratio for 30-day mortality in the transradial group was 0.56 (95 % CI: 0.29-1.07, p = 0.08). CONCLUSION: This registry-based study showed that radial access is associated with improved outcome in patients with an acute coronary syndrome. However, this difference was no longer significant after multivariate and propensity score adjustment for differences in baseline characteristics.

17.
Heart ; 97(2): 106-11, 2011 Jan.
Article in English | MEDLINE | ID: mdl-20962338

ABSTRACT

OBJECTIVE: This study investigated the outcome of patients who received bail-out study medication and evaluated whether high-dose tirofiban (HDT) pretreatment may reduce the need for bail-out study medication. DESIGN: A prespecified analysis of the multicentre, double-blind, placebo controlled, randomised On-TIME 2 trial. Bail-out use of study medication was predefined and part of the combined clinical end point. PATIENTS: 984 patients excluded from many coronary intervention hospitals in different countries were randomly assigned to HDT or placebo. In the subgroup who received blinded bail-out treatment, patients pretreated with placebo who received bail-out HDT were compared with those pretreated with HDT who received bail-out placebo. Interventions Routine prehospital initiation of HDT versus bail-out use of HDT. MAIN OUTCOME MEASURES: Electrocardiographic and clinical outcome. RESULTS: Blinded bail-out study medication was used in 24% (237/980) of patients, with a higher rate in patients pretreated with placebo: 29% (140/492) versus 20% (97/488), p=0.002. Bail-out versus no bail-out use of study medication was associated with more residual ST deviation (5.5±7.2 vs 3.7±4.8 mm, p=0.005), and worse clinical outcome (major adverse cardiac events (MACE) at 30 days 12.2% vs 5.6%, p<0.001), mainly due to poor outcome in patients who received HDT bail-out. In patients pretreated with HDT who received placebo bail-out study medication, residual ST deviation and clinical outcome did not differ significantly compared with patients who did not receive bail-out medication (4.0±4.6 vs 3.7± 4.8 mm, p=0.703, MACE 7.2% vs 5.6%, p=0.535). CONCLUSIONS: Routine prehospital treatment with HDT significantly reduced the use of blinded bail-out study medication. The need for bail-out therapy was associated with a less favourable outcome. This analysis suggests that routine pretreatment is superior to provisional use of HDT in patients with ST-segment elevation myocardial infarction.


Subject(s)
Myocardial Infarction/drug therapy , Platelet Aggregation Inhibitors/administration & dosage , Tyrosine/analogs & derivatives , Angioplasty, Balloon, Coronary/methods , Double-Blind Method , Emergency Medical Services , Female , Humans , Male , Middle Aged , Preoperative Care/methods , Tirofiban , Treatment Outcome , Tyrosine/administration & dosage
18.
Neth Heart J ; 18(12): 592-7, 2010 Dec.
Article in English | MEDLINE | ID: mdl-21301621

ABSTRACT

BACKGROUND: Despite the proven benefit of glycoprotein IIb/IIIa blockers in patients with acute ST-segment elevation myocardial infarction (STEMI), there is still debate on the timing of administration of these drugs and whether all or only a selection of patients should be treated. We evaluated the effect of routine upfront versus provisional use of high-dose tirofiban (HDT) in a large real-world population of non-selected STEMI patients. METHODS: Consecutive STEMI patients were registered in a single-centre dedicated database. Patients with upfront HDT therapy before first balloon inflation were compared with patients who received the drug on a provisional basis, after first balloon inflation. Initial TIMI flow of the infarct-related vessel and enzymatic infarct size and 30-day clinical outcome were assessed. RESULTS: Out of 2679 primary PCI patients HDT was given upfront in 885 (33.0%) and provisionally in 812 (45.3%). Upfront as compared with provisional HDT showed higher initial patency (22.3 vs. 17.9%, p=0.006), smaller infarct size (1401 IU/l (IQR 609 to 2948) vs. 1620 (753 to 3132), p=0.03) and a lower incidence of death or recurrent MI at 30 days (3.3 vs. 5.1%, p=0.04) without an increase in TIMI bleeding (p=0.24). Upfront HDT independently predicted initial patency (odds ratio (OR) 1.47, 95% confidence interval (CI) 1.15 to 1.88, p=0.02), enzymatic infarct size (OR 0.70, 95% CI 0.56 to 0.86, p=0.001) and 30-day death or recurrent MI (OR 0.59, 95% CI 0.37 to 0.95, p=0.03). CONCLUSION: Our findings support the use of upfront potent antiplatelet and antithrombotic therapy in STEMI patients and encourage further clinical investigations in this field. (Neth Heart J 2010;18:592-7.).

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