Pre-percutaneous Coronary Intervention Research Articles

Spiritual emotional freedom technique and level anxiety among people with pre-percutaneous coronary intervention

Introductions: Percutaneous Coronary Intervention is a low-risk diagnostic procedure, but many patients experience a high level of anxiety. Objectives: The purpose of the study was to determine the effect of SEFT on the anxiety level among people with Pre- Percutaneous Coronary Intervention. Methods: The research design used a quasi-experiment with a pretest-posttest design with a control group design. The number of samples used G-Power with nonprobability sampling was as many as 18 people in each group (a total of 36 people). The inclusion criteria are elective inpatients, patients diagnosed with CAD who have anxiety and are able to communicate, patients indicated as primary care, and patients with complications and panic are excluded, SEFT consists of set-up, tune-in, and tapping given one hour before cardiac catheterization for 15–25 minutes with two repetitions. Questionnaires for measuring anxiety levels before and after therapy using the Hamilton Scale for Anxiety (HARS) with validity (r count 0.57–0.97) and reliability (0.93–0.97). The analysis used Mann-Whitney. Results: The short version of SEFT in the control group (p-value 0.001) and the long version of SEFT in the intervention group (p-value <0.001) were proven to have an effect on reducing anxiety scores. there was no difference in the mean anxiety scores between the groups given the long version and the short version of the SEFT intervention (p-value 0,053). Conclusion: The conclusion of the study showed the effect of SEFT therapy on the anxiety of cardiac pre-catheterization patients. SEFT can be a complementary nursing therapy to reduce anxiety.

Diagnostic value of computed tomography myocardial perfusion imaging to detect coexisting microvascular dysfunction in patients with obstructive epicardial coronary artery disease.

Computed tomography myocardial perfusion (CT-MP) has reported usefulness in assessing hemodynamically significant epicardial coronary artery lesions. However, the diagnostic ability of the absolute coronary flow using CT-MP to detect coronary microvascular dysfunction (CMD) remains elusive. This prospective cohort study aimed to assess the diagnostic value of CT-MP in evaluating coexisting CMD in patients with functionally significant epicardial coronary stenosis and to analyze the predictive factors of lesions with CMD. Sixty-eight patients with chronic coronary syndrome (CCS) and de novo single functionally significant stenosis [fractional flow reserve (FFR) ≤0.80] were studied. CMD was defined as an index of microcirculatory resistance ≥25. We compare clinical background and CT-MP findings between patients with and without CMD (CMD, n=29; non-CMD, n=39). CT-MP, and quantitative and qualitative plaque assessments were included in computed tomography angiography assessment. Logistic regression analysis was performed to predict CMD. FFR, invasive wire-derived coronary flow reserve (CFRwire) and index of microcirculatory resistance were 0.68 [interquartile range (IQR), 0.59-0.74], 1.71 (IQR, 1.24-2.88), and 22.6 (IQR, 15.1-34.5), respectively. The rest and hyperemic-myocardial blood flow (MBF) and CT-MP-derived CFR (CFRCT-MP) were 0.83 (0.64-1.03) mL/min/g, 2.14 (1.30-2.92) mL/min/g, and 2.19 (1.44-3.37), respectively. In the territories with CMD, hyperemic-MBF was significantly lower than in those without [1.68 (IQR, 0.84-2.44) vs. 2.31 (IQR, 1.67-3.34) mL/min/g, P=0.015] and the prevalence of CFRCT-MP <2.0 was higher in the lesions with CMD than in those without (62.1% vs. 28.2%, P=0.011), while FFR values were similar. Fibrofatty and necrotic core component volume was greater in the vessels with CMD than in those without [31.8 (IQR, 19.0-48.9) vs. 25.1 (IQR, 17.2-32.1) mm3, P=0.045]. Multivariable logistic regression analysis showed that hyperemic-MBF and fibrofatty and necrotic core component volume were independent predictors of CMD territories [odds ratio (OR) =0.583; 95% confidence interval (CI): 0.355-0.958; P=0.033 and OR =1.040; 95% CI: 1.010-1.070; P=0.011]. Quantitative assessment of absolute coronary flow using pre-percutaneous coronary intervention (PCI) CT-MP, and comprehensive plaque analysis using computed tomography angiography may help detect coexisting subtended microvascular dysfunction in territories with functionally significant epicardial coronary lesions. Further studies are required to elucidate the clinical significance of coexisting CMD in patients with CCS undergoing PCI.

Multimodality coronary imaging to predict non-culprit territory unrecognized myocardial infarction in Non-ST-Elevation acute coronary syndrome.

Unrecognized myocardial infarction (UMI) detected by cardiac magnetic resonance (CMR) imaging is associated with adverse outcomes in patients with acute and chronic coronary syndrome. This study aimed to assess the predictors of optical coherence tomography (OCT) and coronary computed tomography angiography (CCTA) findings for non-infarct-related (non-IR) territory UMI in patients presenting with non-ST-elevation acute coronary syndrome (NSTE-ACS). We investigated 69 patients with a first clinical episode of NSTE-ACS who underwent pre-percutaneous coronary intervention (PCI) 320-slice CCTA, uncomplicated urgent PCI with OCT assessment within 24h of admission, and post-PCI CMR. UMI was assessed using late gadolinium enhancement to identify regions of hyperenhancement with an ischemic distribution pattern in non-IR territories. Non-IR UMI was detected in 11 patients (15.9%). Lower ejection fraction, higher Gensini score, higher Agatston score, high pericoronary adipose tissue attenuation (PCATA), OCT-defined culprit lesion plaque rupture, and OCT-defined culprit lesion cholesterol crystal were significantly associated with the presence of non-IR UMI. On dividing the total cohort was divided into five groups according to the numbers of two OCT-derived risk factors and two CCTA-derived risk factors, the frequency of non-IR UMI frequency significantly increased according to the number of these relevant risk features (p < 0.001). Patients with all of the non-IR UMI risk factors showed 50% prevalence of non-IR UMI, compared with 2.2% of patients with low risk factors (≤ 2). Integrated CCTA and culprit lesion OCT assessment may help identify the presence of non-IR UMI, potentially providing prognostic information in patients with first NSTE-ACS episode.

Effect of Atherogenic Index of Plasma on Pre-Percutaneous Coronary Intervention Thrombolysis in Myocardial Infarction Flow in Patients With ST Elevation Myocardial Infarction.

Dyslipidemia is an important risk factor for cardiovascular morbidity and mortality. Although low-density lipoprotein (LDL) is primarily responsible, the importance of triglyceride (TG) and high-density lipoprotein (HDL) has also been recognized. The present study investigated the effect of the atherogenic index of plasma (AIP), in which atherogenic and protective lipoproteins were evaluated together, on the initial flow in patients with ST elevation myocardial infarction. AIP was calculated as log(TG/HDL-cholesterol). Patients included in the study (n = 1535) were divided into Thrombolysis in Myocardial Infarction (TIMI) flow grade 0 and >0. AIP was found to be significantly different between 2 groups (.55 ± .23 vs .67 ± .21; P < .001). AIP was an independent predictor for pre-intervention TIMI flow (Odds Ratio: 2.778). A moderate correlation was found between TIMI frame count measurements, calculated in patients with TIMI 2-3, and AIP (Pearson correlation coefficient: .63, P < .001). In the receiver operating characteristic analysis, AIP showed the highest area under curve (AUC) compared with other lipid parameters for predicting vascular patency. The AUC of AIP was .634, the cut-off value was .59, and the sensitivity and specificity were 67.6% and 68.4%, respectively (P < .001). In conclusion, AIP was found to be an important marker affecting pre-percutaneous coronary intervention TIMI flow.

Pre-Percutaneous Coronary Intervention Sonothrombolysis is Essential to Salvage More Myocardium in STEMI: Data From the REDUCE Pilot Trial

Pre-Percutaneous Coronary Intervention Sonothrombolysis is Essential to Salvage More Myocardium in STEMI: Data From the REDUCE Pilot Trial

Socialization of The Emotional Effect of Freedom Technique on The Anxiety of Pre-Percutaneous Coronary Intervention Patients in The Hospital Grandmed Lubuk Pakam

Coronary heart disease (CHD) is a health disorder in the cardiovascular system where cases have a mortality rate of 6.7 million cases in 2018. CHD is a dangerous disease in the Southeast Asian region, including Indonesia. The prevalence of CHD in North Sumatra is 0.5%. Percutaneous Coronary Intervention (PCI) action is a technique to open blood vessels and return blood through the coronary arteries. In carrying out proper PCI operations, interventions are needed that can reduce the anxiety of pre-PCI patients, namely The Emotional Freedom Technique (EFT). Service activities are carried out through outreach activities through several methods of lectures, discussions, and questions and answers. The number of participants in this PkM activity was 15 nursing staff at the Lubuk Pakam Grandmed Hospital. The sample was determined using a random sampling technique, where the sample of male nursing staff was 4 people and 11 female nursing staff. The activity begins with giving a pre-test and ends with a post-test. The results of the dedication show that the level of anxiety can be reduced by administering Emotional Freedom Technique (EFT) therapy. The percent increase in knowledge of the largest and smallest PkM participants is 25% and 15%. The average value of increasing the knowledge of PkM participants after being given socialization was 20%. This socialization activity has succeeded in providing benefits for PkM participants in increasing PkM participants' knowledge about the effect of EFT.

Three-Year Clinical Outcomes Based on Pre-Percutaneous Coronary Intervention Coronary Blood Flow Grade and Symptom-to-Balloon Time in Patients with Non-ST-Segment Elevation Myocardial Infarction.

We compared the 3-year clinical outcomes according to the degree of pre-percutaneous coronary intervention thrombolysis in myocardial infarction flow grade (pre-PCI TIMI) and symptom-to-balloon time (SBT) individuals who underwent successful stent implantation with a diagnosis of non-ST-segment elevation myocardial infarction (NSTEMI). A total of 4910 patients with NSTEMI were divided into two groups: pre-PCI TIMI 0/1 (SBT < 48 h: n = 1328, SBT ≥ 48 h: n = 558) and pre-PCI TIMI 2/3 (SBT < 48 h: n = 1965, SBT ≥ 48 h: n = 1059). The primary outcome was a 3-year all-cause death rate, and the secondary outcome was the composite endpoint of 3-year all-cause death, recurrent MI, or any repeat revascularization rate. After adjustment, in the pre-PCI TIMI 0/1 group, the 3-year all-cause death (p = 0.003), cardiac death (CD, p < 0.001), and secondary outcome (p = 0.030) values were significantly higher in the SBT ≥ 48 h group than in the SBT < 48 h group. However, patients with pre-PCI TIMI 2/3 had similar primary and secondary outcomes, regardless of the SBT group. Within the SBT < 48 h group, the pre-PCI TIMI 2/3 group exhibited significantly higher rates of 3-year all-cause death, CD, recurrent MI, and secondary outcome values than the pre-PCI TIMI 0/1 group. Patients in the SBT ≥ 48 h group with either pre-PCI TIMI 0/1 or TIMI 2/3 had similar primary and secondary outcomes. Our results suggest that shortening the SBT may confer a survival benefit in patients with NSTEMI and those in the pre-PCI TIMI 0/1 group compared to those in the pre-PCI TIMI 2/3 group.

Effect Of Emotional Freedom Technique On Pre Percutaneous Coronary Intervention Patients' Anxiety In Hospital

Coronary heart disease is a degenerative disease. One of the techniques that can open blood vessels and return blood through the coronary arteries is Percutaneous Coronary Intervention (PCI). Hemodynamic conditions are one of the patient's preparations for PCI, but anxiety can respond to the cardiovascular system, one of which is a disturbance in a person's hemodynamics. Problems that often arise in pre PCI patients are anxiety.Percutaneous Coronary Intervention is one of the techniques that have been invented to open the blood vessels and return blood through the coronary arteries (PCI). PCI, also known as cardiac catheterization, is a procedure that involves inserting one or more catheters into the heart and blood arteries. The catheter is inserted through a peripheral vessel, usually femoral, then non-operatively invasive so that complications can be kept as low as possible. Percutaneous Coronary Intervention (PCI) can cause complications in the form of myocardial infarction, stroke, arrhythmia and death. This causes a person to feel himself threatened, someone feels himself threatened can cause the effect of Anxiety (anxiety). The problem that often arises in pre PCI patients is anxiety. One of the efforts to overcome anxiety is the Emotional Freedom Technique (EFT). This type of research is a quantitative study using a quasi-experimental design with a pretest-posttest with a control group, namely by conducting a pretest in both groups and followed by an intervention in the experimental group and then conducting a posttest in both groups, with a sample of 34 respondents. The results showed that the effect of EFT on the anxiety of pre PCI patients in the intervention group with p-value = 0.000, while in the control group with p-value = 0.650. Furthermore, it is hoped that clients who will undergo PCI will not be hindered from doing PCI because the client has been given Emotional Freedom Technique (EFT) therapy.

Prepercutaneous coronary intervention Zalunfiban dose-response relationship to target vessel blood flow at initial angiogram in st-elevation myocardial infarction – A post hoc analysis of the cel-02 phase IIa study

Zalunfiban (RUC-4) is a novel, subcutaneously administered glycoprotein IIb/IIIa inhibitor (GPI) designed for prehospital treatment to initiate reperfusion in the infarct-related artery (IRA) before primary percutaneous coronary intervention in patients with ST-elevation myocardial infarction (STEMI). Since GPIs have been reported to rapidly reperfuse IRAs, we assessed whether there was a dose-dependent relationship between zalunfiban treatment and angiographic reperfusion indices and thrombus grade of the IRA at initial angiogram in patients with STEMI. This was a post hoc analysis from the open-label Phase IIa study that investigated the pharmacodynamics, pharmacokinetics, and tolerability of three doses of zalunfiban - 0.075, 0.090 and 0.110 mg/kg - in STEMI patients. This analysis explored dose-dependent associations between zalunfiban and three angiographic indices of the IRA, namely coronary and myocardial blood flow and thrombus burden. Zalunfiban was administered in the cardiac catheterization laboratory prior to vascular access, ∼10 to 15 minutes before the initial angiogram. All angiographic data were analyzed by a blinded, independent, core laboratory. Twentyfour out of 27 STEMI patients were evaluable for angiographic analysis (0.075 mg/kg [n=7], 0.090 mg/kg [n=9], and 0.110 mg/kg [n=8]). TIMI flow grade 2 or 3 was seen in 1/7 patients receiving zalunfiban at 0.075 mg/kg, in 6/9 patients receiving 0.090 mg/kg, and in 7/8 patients receiving 0.110 mg/kg (ptrend=0.004). A similar trend was observed based on TIMI flow grade 3. Myocardial perfusion was also related to zalunfiban dose (ptrend=0.005) as reflected by more frequent TIMI myocardial perfusion grade 3. Consistent with the dose-dependent trends in greater coronary and myocardial perfusion, TIMI thrombus ≥4 grade was inversely related to zalunfiban dose (ptrend=0.02). This post hoc analysis found that higher doses of zalunfiban administered in the cardiac catheterization lab prior to vascular access were associated with greater coronary and myocardial perfusion, and lower thrombus burden at initial angiogram in patients with STEMI undergoing primary percutaneous coronary intervention.

Two-Dimensional Speckle-Tracking Echocardiography to Monitor Left Ventricular Function After Percutaneous Coronary Intervention

Background: Conventional 2 D Doppler echocardiographic parameters are inadequate for evaluation and monitoring Left ventricle systolic function recovery of patients with ischemic heart disease (IHD) treated by Percutaneous coronary intervention (PCI). Hence, New strain imaging parameters are studied by using 2 D speckle Tracking Echocardiography. The aim is to compare the conventional echocardiographic parameters (Left ventricle ejection fraction, Wall motion score index, regional wall motion score) with speckle tracking echocardiographic parameters (Global longitudinal strain, Regional longitudinal strain) in patients with ischemic heart disease undergo Percutaneous Coronary Intervention (PCI).Method and patient: A prospective Interventional Hospital Based study enrolled 50 patients who had ischemic heart disease (IHD), Percutaneous coronary intervention (PCI) was done for them at IbN Al-Bittar Cardiac Surgery Center from October 2014 to April 2015. Both conventional echocardiographic parameters (Left ventricle ejection fraction, Wall motion score index, regional wall motion score according to coronary artery territory) and Speckle tracking echocardiographic parameters (Global longitudinal strain, Regional longitudinal strain according to coronary artery territory) done for them pre PCI, one day post PCI, and one month post PCI.Result: Regarding conventional echocardiographic parameters: Global LVEF pre PCI 52.34±90% , one month post PCI was (54.00±6.9), there was no significant difference statistically (P value 0.79), also Wall motion score index ,Regional wall motion score according to coronary artery territory were (1.22±0.25,1.44±1.52) respectively, one month post PCI were (1.98±0.26,1.40±0.58) respectively where there's no significant differences statistically (P value 0.25,0.22) respectively.Regarding speckle tracking parameters :Global Longitudinal strain for all patients pre PCI was (-14.30±3.54%) ,one day post PCI was (-14.78±3.81%) ;there was no significant differences (p value 0.77).After one month Global Longitudinal Strain was (-16.38±4.15%) where this consider highly significant differences (p value 0.001).Regional Longitudinal Strain according to the coronary artery territory pre PCI was (-14.49±4.47%),post one day post PCI was (-15.08±4.92%) where there's no significant differences (p value 0.10), while one month post PCI was (-17.70±5.27%),this was highly significant different statistically (0.001).Only in STEMI patients there was significant difference one day post PCI(P value 0.041 for Global LS,0.016 for Regional LS).Conclusions: In all IHD groups (STEMI, NSTEMI ∕UA, chronic stable angina) Speckle Tracking Echocardiographic parameters (Global Longitudinal Strain and Regional longitudinal strain) more reliable and effective than conventional echocardiographic parameters (Global LWEF,WMSI, RWMS) for monitoring improvement in LV systolic function post Percutaneous coronary intervention.

Pre-percutaneous coronary intervention sudden cardiac arrest in ST-elevation myocardial infarction: Incidence, predictors, and related outcomes.

ST-segment elevation myocardial infarction (STEMI) is a frequent cause of sudden cardiac arrest (SCA) and early percutaneous coronary intervention (PCI) is associated with increased survival. Despite constant improvements in SCA management, survival remains poor. We aimed to assess pre-PCI SCA incidence and related outcomes in patients admitted with STEMI. This was a prospective cohort study of patients admitted with STEMI in a tertiary university hospital over 11 years. All patients were submitted to emergency coronary angiography. Baseline characteristics, details of the procedure, reperfusion strategies, and adverse outcomes were assessed. The primary outcome was in-hospital mortality. The secondary outcome was 1-year mortality after hospital discharge. Predictors of pre-PCI SCA was also assessed. During the study period 1,493 patients were included; the mean age was 61.1 years (±12), and 65.3% were male. Pre-PCI SCA was present in 133 (8.9%) patients. In-hospital mortality was higher in the pre-PCI SCA group (36.8% vs. 8.8%, p < 0.0001). In multivariate analysis, anterior MI, cardiogenic shock, age, pre-PCI SCA and lower ejection fraction remained significantly associated with in-hospital mortality. When we analyzed the interaction between pre-PCI SCA and cardiogenic shock upon admission there is a further increase in mortality risk when both conditions are present. For predictors of pre-PCI SCA, only younger age and cardiogenic shock remained significantly associated after multivariate analysis. Overall 1-year mortality rates were similar between pre-PCI SCA survivors and non-pre-PCI SCA group. In a cohort of consecutive patients admitted with STEMI, pre-PCI SCA was associated with higher in-hospital mortality, and its association with cardiogenic shock further increases mortality risk. However, long-term mortality among pre-PCI SCA survivors was similar to non-SCA patients. Understanding characteristics associated with pre-PCI SCA may help to prevent and improve the management of STEMI patients.

Relationship between coronary high-intensity plaques on T1-weighted imaging by cardiovascular magnetic resonance and vulnerable plaque features by near-infrared spectroscopy and intravascular ultrasound: a prospective cohort study

BackgroundThis study aimed to compare the coronary plaque characterization by cardiovascular magnetic resonance (CMR) and near-infrared spectroscopy (NIRS)-intravascular ultrasound (IVUS) (NIRS-IVUS), and to determine whether pre–percutaneous coronary intervention (PCI) evaluation using CMR identifies high-intensity plaques (HIPs) at risk of peri-procedural myocardial infarction (pMI). Although there is little evidence in comparison with NIRS-IVUS findings, which have recently been shown to identify vulnerable plaques, we inferred that CMR-derived HIPs would be associated with vulnerable plaque features identified on NIRS-IVUS. Methods52 patients with stable coronary artery disease who underwent CMR with non-contrast T1-weighted imaging and PCI using NIRS-IVUS were studied. HIP was defined as a signal intensity of the coronary plaque-to-myocardial signal intensity ratio (PMR) ≥ 1.4, which was measured from the data of CMR images. We evaluated whether HIPs were associated with the NIRS-derived maximum 4-mm lipid-core burden index (maxLCBI4mm) and plaque morphology on IVUS, and assessed the incidence and predictor of pMI defined by the current Universal Definition using high-sensitive cardiac troponin-T. ResultsOf 62 lesions, HIPs were observed in 30 lesions (48%). The HIP group had a significantly higher remodeling index, plaque burden, and proportion of echo-lucent plaque and maxLCBI4mm ≥ 400 (known as large lipid-rich plaque [LRP]) than the non-HIP group. The correlation between the maxLCBI4mm and PMR was significantly positive (r = 0.51). In multivariable logistic regression analysis for prediction of HIP, NIRS-derived large LRP (odds ratio [OR] = 5.41; 95% confidence intervals [CIs] 1.65–17.8, p = 0.005) and IVUS-derived echo-lucent plaque (OR = 5.12; 95% CIs 1.11–23.6, p = 0.036) were strong independent predictors. Furthermore, pMI occurred in 14 of 30 lesions (47%) with HIP, compared to only 5 of 32 lesions (16%) without HIP (p = 0.005). In multivariable logistic regression analysis for prediction of incidence of pMI, CMR-derived HIP (OR = 5.68; 95% CIs 1.53–21.1, p = 0.009) was a strong independent predictor, but not NIRS-derived large LRP and IVUS-derived echo-lucent plaque. ConclusionsThere is an important relationship between CMR-derived HIP and NIRS-derived large LRP. We also confirmed that non-contrast T1-weighted CMR imaging is useful for characterization of vulnerable plaque features as well as for pre-PCI risk stratification.Trial registration The ethics committee of Juntendo Clinical Research and Trial Center approved this study on January 26, 2021 (Reference Number 20-313).

548 ROLE OF NEW ANTIDIABETIC DRUGS IN THE PREVENTION OF CONTRAST-INDUCED NEPHROPATHY IN DIABETIC PATIENTS UNDERGOING PERCUTANEOUS CORONARY INTERVENTION

Abstract Background Contrast-Induced Acute Kidney Injury (CI-AKI) is a complication of patients undergoing percutaneous coronary intervention (PCI) associated with high morbidity and mortality and higher incidence is in patients with type II diabetes mellitus. Recently several randomized controlled trials have shown a clear benefit of new anti-diabetic drugs (GLP-1 analogues, DPP-4 inhibitors and SGLT-2 inhibitors) in the prevention of kidney damage but no study has evaluated their possible role in the prevention of CI-AKI in patients undergoing percutaneous coronary intervention. Methods The study enrolled 408 patients undergoing PCI and divided them into three groups: 136 with type 2 diabetes mellitus treated with new-antidiabetic drugs, 136 with type 2 diabetes mellitus treated with standard-antidiabetic therapy, and 136 non-diabetic patients. Patients were evaluated for serum creatinine (measured at the time of hospitalization, 24-hour and 48-hour post-PCI), glomerular filtration rate (eGFR) estimated using the Cockcroft-Gault equation before and after the procedure, and markers of myocardial damage at the admission and 24 hours after PCI. CI-AKI was defined as an increase in serum creatinine levels ≥ 0.3 mg / dL (26.5 μmol / L) or greater than 25% of the base value, occurred 24-48 hours after administration of the contrast medium. Results It was observed a significant increase in delta creatinine between pre and post PCI in the group treated with standard-antidiabetic therapy (0.91 ± 0.22 mg / dL vs 0.94 ± 0.23 mg / dL, p= 0.008), but not in the group treated with new-antidiabetic drugs that showed a delta creatinine close to zero (1.01 ± 0.33 mg / dL vs 1.01 ± 0.35 mg / dL, p = 0.945), similar to that observed in non-diabetic patients (1.01 ± 0.30 mg / dL vs 0.99 ± 0.31 mg / dL, p = 0.020). The patients treated with SGLT-2 inhibitors presented pre-PCI mean creatinine levels significantly lower (0.83 ± 0.16 mg / dL) than those treated with DPP-4 inhibitors (1.04 ± 0.34 mg / dL) and GLP-1 analogues (1.05 ± 0.39 mg / dL), (p for trend = 0.009). However, the creatinine delta between the pharmacological classes was similar (p = 0.881). The incidence of CI-AKI, defined as an increase ​​of serum creatinine 24-48 hours after contrast medium administration ≥ 25%, was 9.6% in patients treated with standard-antidiabetic therapy, 4.4% in patients treated with new-antidiabetic drugs and 3.7% in non-diabetic patients (p for trend = 0.080). The incidence of CI-AKI, defined as an increase of serum creatinine 24-48 hours after contrast medium administration ≥0.3 mg / dL, was 5.1% in the standard-antidiabetic therapy group, 3.8% in the new-antidiabetic drugs group and 2.9% in the non-diabetic patients (p for trend = 0.911). Conclusions The study demonstrated in diabetic patients undergoing PCI and in treatment with new anti-diabetic drugs (GLP-1 analogues, DPP-4 inhibitors, SGLT-2 inhibitors) a reduced incidence of CI-AKI compared to diabetic patients in treatment with traditional antidiabetic drugs (metformin, sulfonylureas, thiazolidinediones, insulin) and a similar incidence of CI-AKI compared to non-diabetic patients. The results of this study underline a possible protective role of new anti-diabetic drugs for the prevention of CI-AKI.

Abstract 10001: Relationship Between Coronary HIPs on Non-Contrast T1-WI by CMR and Vulnerable Plaque Features by NIRS-IVUS

Introduction: Although high-intensity plaques (HIPs) on cardiac magnetic resonance (CMR) have been reported to be associated with vulnerable plaque features, there is little evidence in comparison with near-infrared spectroscopy (NIRS)-intravascular ultrasound (IVUS) findings, which have recently been shown to positively identify vulnerable plaques and predict peri-procedural myocardial infarction (pMI). Hypothesis: We assumed that the coronary plaque characterization of CMR and NIRS-IVUS may have a significant relationship, and determined whether pre-percutaneous coronary intervention (PCI) evaluation using CMR identifies HIPs at risk of pMI. Methods: In total, 52 patients with stable coronary artery disease who underwent CMR with non-contrast T1-weighted imaging and PCI using NIRS-IVUS were studied. HIP was defined as a signal intensity of the coronary plaque-to-myocardial signal intensity ratio (PMR) ≥1.4. We evaluated the association between the NIRS-derived maximum 4-mm lipid-core burden index (maxLCBI 4mm ) and plaque morphology on IVUS, and assessed the incidence of pMI. Results: Of 62 lesions, HIPs were observed in 30 lesions (48%). HIPs had a significantly higher maxLCBI 4mm (500±170 versus [vs.] 288±218, p &lt;0.001) and plaque burden (69±8% vs. 63±10%, p =0.011) than the non-HIPs. The correlation between the maxLCBI 4mm and PMR was significantly positive (r=0.51). In multivariable analysis, HIP independently predicted a maxLCBI 4mm ≥400 (odds ratio [OR]=3.93; 95% confidence intervals [CIs]: 1.21-13.6, p =0.023). Furthermore, pMI occurred in 14 of 30 lesions (47%) with HIP, compared to 5 of 32 lesions (16%) without HIP ( p =0.005). Conclusions: We found an important relationship between coronary HIPs on CMR and NIRS-derived maxLCBI 4mm . We also confirmed that non-contrast T1-weighted imaging in CMR can be useful not only for the characterization of vulnerable plaque features, but also for pre-PCI risk stratification.

TNF-α is a Novel Biomarker for Predicting Plaque Rupture in Patients with ST-Segment Elevation Myocardial Infarction.

Background and AimsPatients with plaque rupture (PR) present with different cardiovascular risks, clinical strategies, and outcomes from those with plaque erosion (PE). However, there are lack of noninvasive biomarkers to distinguish PE from PR.MethodsA prospective analysis of 382 patients with ST-segment elevation myocardial infarction (STEMI) was conducted. Of these patients, 262 and 120 presented with PR and PE, respectively. An additional 83 patients diagnosed with stable angina pectoris were enrolled as control group. Peripheral blood monocytes were collected pre-percutaneous coronary intervention and used to evaluate the mRNA expression of IL-4, IL-10, IL-1β, and TNF-α in all patients.ResultsSTEMI patients had higher IL-4, IL-10, IL-1β, and TNF-α expression than the control patients. The mRNA levels of IL-4, IL-1β, and TNF-α were significantly higher in PR patients than PE; however, no significant difference was observed in IL-10 between PE and PR. The areas under the receiver-operating characteristic curves for IL-4, IL-1β, and TNF-α for PR versus PE were 0.685, 0.747, and 0.895, respectively. At the cut-off value of 2.52, TNF-α demonstrated a sensitivity of 70.61% and specificity of 93.33% for discriminating PR from PE patients. When added to the model of established clinical risk factors, TNF-α significantly improved the predictive accuracy of PR. Multivariable logistic regression analysis indicated that TNF-α mRNA level was independently associated with PR (odds ratio, 3.09; 95% confidence interval, 2.29–4.16; p < 0.001).ConclusionThe inflammatory response of peripheral blood mononuclear cells in patients with PR was higher than that in patients with PE. TNF-α may be a potential biomarker for predicting PR that could facilitate risk stratification and management in STEMI patients.

Intravascular lithotripsy during percutaneous coronary intervention for calcified coronary lesions: analysis of patient and procedural characteristics and clinical outcomes

Abstract Funding Acknowledgements Type of funding sources: None. Background/Introduction Coronary artery calcification is frequently encountered during percutaneous coronary intervention (PCI). It can reduce PCI success and increase intra-procedural and post-procedural complications, including stent embolization, under-expansion and mal-apposition. Intravascular lithotripsy (IVL) is a new tool developed to treat calcified coronary lesions. Purpose Retrospective analysis of all cases of intravascular lithotripsy performed within our local health district to examine patient and procedural characteristics and clinical outcomes. Methods All patients undergoing PCI with intravascular lithotripsy between September 2019-August 2021 within our local health district were analysed. Patient and procedural characteristics and clinical outcomes were recorded. Results 67 patients (50 men) were included with mean age 71.4 ± 8.7years. Risk factors prevalence included smoking (34%), hypertension (82%), dyslipidaemia (69%) and diabetes (46%). Trans-radial artery access was used in 38 patients (57%). IVL was performed most commonly in the left anterior descending artery (52%),[Figure 1]. IVL was utilised in 9 chronic total occlusions and 12 bifurcation lesions. Intracoronary (IC) imaging was performed in 59 patients (88%), intravascular ultrasound in 41(61%) and optical coherence tomography in 18 (27%). 41 (69%) patients had imaging performed pre and post IVL and post PCI. IC imaging identified 14 cases with 270º calcification arc and 45 cases with 360º arc. Nine cases (13.4%) required rotational atherectomy prior to IVL (most commonly 1.75mm burr). Mean reference vessel diameter was 3.2 ± 0.3mm. Mean lesion length was 36.3 ± 16.5mm. Mean pre-PCI stenosis was 85.5 ± 10.8%. Drug eluting stents were successfully deployed in 57 cases (85%), 10 had balloon angioplasty alone. Mean stent length was 39.2 ± 17.8mm. Mean post-PCI stenosis was 4.5 ± 13.3% (median 0%). Figure 2 shows a statistically significant increase in minimum lumen diameter and minimum lumen area post-IVL and minimal-stent-area (MSA) post-PCI. Mean stent expansion was 83%. Mean screening time 35.8 ± 17.8 minutes with mean contrast used 207.3 ± 78.7mL. No sustained arrhythmias or side-branch loss occurred. Vessel rupture was recorded in one patient necessitating urgent cardiac surgery (due to oversized balloon) and in 4 cases the IVL balloon could not cross the lesion. Conclusion Our experience shows that IVL is safe and effective and facilitates stent delivery and expansion. Intracoronary imaging is important to determine the need for calcium modification and evaluate its success prior to stent delivery and to confirm optimised stent expansion. Abstract Figure. Breakdown of PCI Artery Abstract Figure. IC Dimensions Pre/Post IVL/Post PCI

Demographic Characteristics and Risk Factors of Coronary Artery Disease in Patients Undergoing Percutaneous Coronary Intervention at a Tertiary Care Hospital in Islamabad

Objective: To determine the demographic characteristics and risk factors of coronary artery disease in patients undergoing percutaneous coronary intervention (PCI) at cardiology department of a tertiary care hospital in Islamabad. Materials and methods: This descriptive cases series study was done at cardiology department of Pakistan Institute of Medical Sciences (PIMS) Islamabad, during nine months of period from January to September 2021. All the patients having coronary artery disease based on clinical history and diagnosis including electrocardiogram (ECG), biochemical markers, or non-invasive tests like, echocardiography, exercise tolerance test (ETT), Thallium stress test and selected for PCI and of either gender were included. Pre PCI LVEF was assessed. All the patients underwent detailed medical history and routine laboratory investigation to assess the demographic information, risk factors of coronary artery diseases and indication of percutaneous coronary intervention (PCI). All the data was collected via self-made study proforma. Data was entered and analyzed by SPSS version 26. Results: A total of 724 patients with coronary artery disease and underwent (PCI) were studied, their average age was 55.72+10.04 years and average BMI was 25.70+3.14 kg/m2. Males were in majority 76.8%. Out of all 63.4% cases were hypertensive, 29.0% were diabetics, 41.4% having family history of CVD, 30.9% had a history of daily used of tobacco as shown in table.1 Pre PCI EF &lt;30% was in most of the cases 59.9% and elective PCI status was 86.2%. As per anginal classification the class II and III were most common 60.1% and 27.2% respectively. Most of the cases 87.2% having intermediate PCI risk sore. Conclusion: As per study conclusion hypertension, diabetes, smoking and family history were observed to the risk factors for CAD and intermediate PCI risk score was most frequent. Demographically age more than 45 years and males were commonest. Keyword: CAD, Risk score, PCI, age, gender

Association of pre-percutaneous coronary flow grade and clinical outcomes in patients with non-ST-segment elevation myocardial infarction: Data from the Korea Acute Myocardial Infarction Registry.

Because of a paucity of published data, we compared the 2-year major clinical outcomes between pre-percutaneous coronary intervention (pre-PCI) thrombolysis in myocardial infarction (TIMI) flow grade 0/1 (pre-TIMI flow grade [pre-TIMI] 0/1) group and pre-PCI TIMI flow grade 2/3 (pre-TIMI 2/3) group in patients with non-ST-segment elevation myocardial infarction (NSTEMI) who underwent successful implantation of newer-generation drug-eluting stent.A total of 7506 NSTEMI patients were divided into 2 groups: pre-TIMI 0/1 group (n = 3157) and pre-TIMI 2/3 group (n = 4349). The primary outcome was major adverse cardiac events defined as all-cause death, recurrent myocardial infarction, or any repeat revascularization. The secondary outcome was stent thrombosis (ST).After propensity score-matched (PSM) analysis, 2 PSM groups (2473 pairs, n = 4946, C-statistic = 0.684) were generated. Major adverse cardiac events (hazard ration [HR], 1.294; 95% confidence interval [CI]: 1.065–1.572; P = .009), all-cause death (HR, 1.559, P = .003), cardiac death (HR: 1.641, P = .005), and all-cause death or MI (HR: 1.531, P = .001) rates were significantly higher in the pre-TIMI 0/1 group than in the pre-TIMI 2/3 group. Moreover, these differences were more prominent during the first 1 month after the index PCI. However, the cumulative incidences of recurrent myocardial infarction, any revascularization, and ST were similar between the 2 groups.Among a contemporary cohort of NSTEMI, these data suggest that the presence of a pre-PCI patency of the infarct-related artery showed better mortality reduction capacity than those with a lack of patency.

The Effect of Clinical Characteristics and Stent Parameters on Left Ventricular Mechanical Dyssynchrony

Aim. To study short term effect of stent size and number on left ventricular mechanical dyssynchrony after elective percutaneous coronary intervention (PCI) to left anterior descending (LAD) artery.Materials and methods. the study included 150 adult patients with LAD lesion treated with PCI using drug-eluting stent. Patients were evaluated pre PCI then 1 month and 3 months post PCI for evaluation of mechanical dyssynchrony using tissue synchronization image (TSI).Results. Before revascularization mean left ventricular ejection fraction was 51.2±5.7 %, mean time to peak TSI was 213.6±10.9 ms; 1 month after PCI TSI improved significantly to 163.7±17.6 ms (p&lt;0.001), 3 months after PCI showed more improvement to 120.7±26.9 ms (p&lt;0.001). After 3m; 61 patients (40.7%) showed recovery to normal TSI value. The predictors of non-improvement of time to peak TSI after 3 months were diabetes mellitus (p=0.007), dyslipidemia (p=0.001) and stent length (p=0.001), number of stents (p=0.004). There were strong negative correlation between stent length and improvement of the time to peak TSI at 1 month (r=-0.352, p&lt;0.001) and at 3 months (r=-0.509, p&lt;0.001),and also with number of stent at 1 month (r= -0.173, p=0.034) and at 3 months (r=-0.499, p&lt;0.001), but the correlation between stent diameter and improvement of the TSI wasn’t significant neither at 1 month nor at 3 months (r=0.055, p=0.504 and r= -0.018, p=0.827) respectively.Conclusion. Increased number and length of the implanted stents were predictors to non-improvement of mechanical dyssynchrony, while stent diameter didn’t affects the recovery.

Impact of preprocedural coronary flow grade on duration of dual antiplatelet therapy in acute myocardial infarction

We investigated the impact of pre-percutaneous coronary intervention (pre-PCI) thrombolysis in myocardial infarction (TIMI) flow grade (pre-TIMI) on 3-month (3-mo) and 12-mo of dual antiplatelet therapy (DAPT) in patients with acute myocardial infarction (AMI). This was a post hoc analysis of the TICO trial. A total of 2083 patients with AMI (pre-TIMI 0/1: n = 1143; pre-TIMI 2/3: n = 940) were evaluated. The primary outcome was the occurrence of net adverse clinical events (NACE), defined as a composite of TIMI major bleeding and major adverse cardiac and cerebrovascular events (MACCE) within 12-mo following PCI. The secondary outcomes were the occurrence of the individual components of TIMI bleedings and MACCE. In the pre-TIMI 0/1 group, the primary and second outcomes were not significantly different between the 3-mo and 12-mo DAPT groups. However, in the pre-TIMI 2/3 group, the occurrences of TIMI minor (adjusted hazard ratio [aHR]: 0.294; p = 0.016) and major or minor bleeding (aHR: 0.483; p = 0.014) on intention-to-treat analysis were significantly higher in the 12-mo than in the 3-mo DAPT group. The occurrence of MACCE was similar between the two groups. A higher bleeding tendency in 12-mo DAPT compared with 3-mo DAPT was more obvious in the pre-TIMI 2/3 group than in the pre-TIMI 0/1 group.Clinical Trial Registration: URL: http://www.clinicaltrials.gov. Unique identifier: NCT02494895.