Objective: Primary objective was to determine the frequency of in-stent restenosis (ISR) among second/third generation drug eluting stents (DES), diagnosed angiographically in cardiac catheterization laboratory either in emergency settings or elective stage procedure and to determine the risk factors precipitating ISR. Study Design: Analytical Cross-sectional study. Place and Duration of the study: Tertiary Cardiac Care Center of Rawalpindi Pakistan, from Nov 2021 to Apr 2022. Methodology: After hospital ethical committee approval, medical data of consecutive patients were analyzed. Clinical and bio data were obtained followed by admission. Risk factors for atherosclerosis obtained along with baseline investigations and echocardiogram obtained to calculate ejection fraction. Classified interventional cardiologists analyzed angiographic images and confirmed the presence of ISR. Details of previous angioplasty and type of stent were documented. Results: Out of total 137 patients, 98(72%) were males and 39(28%) females. 94(68%) patients were diabetic, 102(72%) were hypertensive, 72(52%) had dyslipidemia, 56(40%) were smokers, and 32(23.35%) strong family history of CHD. After coronary angiography we found that frequency of ISR was 32(23%) in patients who had Xlimus sirolimus stent, 34(24.8%) patients had Xience (everolimus eluting stent), 33(24%) had Ultimaster (sirolimus eluting stent), 38(27%) had Biomatrix stent with p-value=0.25. Conclusion: The clinical presentation of ISR is usually with angina in all new generation DES. There was no statistically significant difference in terms of ISR among second/3rd generation DES. DES ISR not only depends upon the type of DES used but also depends upon multiple patient ...

Objective: To determine in hospital early complications in diabetics’ vs non diabetics with acute ST elevation myocardial infarction. Study Design: Comparative cross-sectional study. Place and Duration of Study: The study was conducted in emergency departments and adult cardiology wards of Armed Forces Institute of Cardiology/National Institute of Heart Diseases, from Aug to Nov 2019. Methodology: A comparative cross sectional study was conducted on 380 patients (190 patients with diabetes and 190 patients without diabetes) who presented with acute ST-Elevation MI in age group 30 to 70 years to emergency department of Armed Forces Institute of Cardiology/National Institute of Heart Disease during specified period. Patients with rescue PCI and new onset of LBBB were also included. Patients with age group lesser than 30 years or greater than 70 years with STEMI were excluded. Sampled with consecutive non probability technique in patients was assessed with ECG, cardiac enzymes, transthoracic echocardiography, renal Doppler and RFTs. All patients were admitted in wards and were followed up during hospital stay. Patients were evaluated and their record of Primary PCI and thrombolysis was also noted. Data was entered and analyzed with SPSS-23. Results: A total of 380 patients with STEMI were included in this study consisting of 292 (76.8%) male and 88 (23.1%) female from 30 to 70 years. The patients were divided in two groups i.e. diabetic and non-diabetic, 190 patients were included in each group. It was found that frequency of ST-Elevation MI was higher in diabetic group as compared to non-diabetic group. All the patients were analyzed for complications occurred after STElevation MI. LV failure, Brady arrhythmias, atrial fibrillation, post MI angina and cardiogenic shock were the main complications noted. It was found that all these complications are more in diabetic group post MI angina which occurred most frequently in non-diabetic group. Conclusion: In our study we observed that left ventricular failure and arrhythmias were the major complications. Mortality was higher in diabetic patients than non-diabetic patients. In both groups PPCI and SK reduced mortality. Post MI angina were found more frequent in non-diabetic group.

Objective: To study the frequency of In-Stent Restenosis and its treatment in patients undergoing Percutaneous Coronary Intervention for coronary artery disease. Study Design: Descriptive cross sectional study. Place and Duration of Study: Department of Cardiology, Armed Forces Institute of Cardiology & National Institute of Heart disease (AFIC/NIHD) Rawalpindi, from Jul 2017 to Jul 2019. Methodology: All the patients who underwent Percutaneous Coronary Intervention for Coronary Artery Disease at our institute were considered for this study. A consecutive sampling method was used and inclusion/exclusion criteria was applied. Following data was obtained; 1) Demographic information and clinical risk factors like history of hypertension, hyperlipidemia, diabetes mellitus, smoking, coronary artery disease characteristics(number of diseased arteries, bifurcation lesions, calcification, chronic total occlusions-CTO and tortuosity) 3), Stent factors (under expansion, fracture, longitudinal miss, stent gap). Data recording, storage, assessment and analysis was done by using SPSS software version 21. Results: Among 1332 cases, 50 had In-Stent Restenosis with overall prevalence of 3.75%. Mean age of the patients with In-Stent Restenosis was 58.76 (± 9.97), with 45 (90%) male and 5 (10%) female. Diabetes Mellitus was the commonest risk factor (22.9%) followed by Hypertension (18%). Sixty four percent of the patients (n=32) had Single Vessel Coronary Artery Disease, 14 (28%) had Double Vessel Coronary Artery Disease and 4 (8%) had Tripple Vessel Coronary Artery Disease. Left Anterior Descending was the commonest coronary artery that developed In-Stent Restenosis, followed by Right Coronary Artery and Left Circumflex respectively. Previously deployed stents which developed In-Stent Restenosis showed longitudinal geographical miss in 16%, stent under expansion in 6% and stent gap in 4%. There was statistically significant association (p-value=0.02) between stent length and frequency of In-Stent Restenosis and it was commonest in stents longer than 30 mm. Eighty six percent(n=43) of In-Stent Restenosis cases in our study group was treated with Drug Eluting Stent followed by Drug Eluting Balloon in 32% and Plain Old Balloon Angioplasty in 22%. Conclusion: History of diabetes mellitus and greater stent length were major risk factors in developing In-Stent Restenosis in our study. DES was the commonest treatment modality used.Keywords: , , .

Objectives: To determine the role of CHADS-VASc Score in predicting No Reflow phenomenon in STEMI patients undergoing primary PCI. Study Design: Analytical cross-sectional study. Place and Duration of Study: This study was carried out at a Tertiary Cardiac Care Center from Feb to May 2022. Methodology: A total of (n = 320) patients who underwent PPCI at Armed Forces Institute of Cardiology from 4th February to 3rd May 2022 were enrolled in this study. Patients were divided into 2 groups, Comparision group with no NRP and NRP group. Descriptive statistics was run to present the categorical data in frequencies and percentages and continuous data in Mean±SD. Chi square test was applied to compare both groups regarding categorical and continuous variables. CHADS-VASc score was also compared in both groups. Results: Out of (n=320) patients, 80(25%) patients developed NRP. Age, Diabetes, LV EF, history of stroke or TIA, peripheral arterial disease, TIMI thrombus grade, total stented length and CHADS-VASc score were found to be significantly associated with NRP. Binary logistic regression analysis revealed diabetes, LV EF, TIMI thrombus grade, total stented length and CHADSVaSc score to be independent predictors of NRP.ROC analysis revealed a cutoff CHADS-VaSc score of 3 to be a good predictor of NRP (sensitivity 65% and specificity 82%). Conclusion: CHADS-VASc score can be an important pre PCI tool to predict NRP during primary PCI.

Objective: To evaluate the role of Cardiac Magnetic Resonance Imaging in differentiating cardiac masses (thrombus vs tumor and benign tumor vs malignant tumor) in local population. Study Design: Analytical cross-sectional study. Place and Duration of Study: Tertiary Cardiac Care Center, Department of Cardiac Magnetic Resonance Imaging, Rawalpindi Pakistan, from Oct 2017 to Jun 2021. Methodology: This retrospective study included (n=56) patients via universal sampling, enrolled for Cardiovascular magnetic resonance imaging with a suspicion of cardiac masses either on echocardiography or Computed Tomography scan. Cardiovascular magnetic resonance imaging sequences were reviewed as SSFP cine images for mass location, size and mobility.T1 weighted turbo spin echo, T2 weighted turbo spin echo with and without fat saturation and TIRM sequences told their intensity as compared to normal myocardium, myomaps evaluated the relaxation time, while contrast first pass perfusion indicated the vascularity and delayed gadolinium enhancement images with standard and long TI were analyzed for contrast enhancement. Results: Total n=56 patients with a confirmed diagnosis of mass were included for the analysis. Mean age of participants was found to be 45.21(18.3%), height 168.4(8.69%) and weight 68.6(14.94%). There were 47(83.9%) males and females were 9(16.1%). 22(39.3%) had hypertension, 12(21.4%) had diabetes mellitus, 24(42.9%) had previous myocardial infarction. Maximum number of masses were found in LV 31(55.4%) followed by RV 11(19.6%). Sensitivity of T1 map to detect fibrosis intumor is 100%. Sensitivity of T2 map to detect edema in tumor is 82%. Conclusion: Cardiac masses like thrombi and tumors accurately diagnosed by cardiac MRI with etiology..