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Background The cause-effect of conduction disturbance in chronic lesion of coronary arteries is complicated. This study was designed to evaluate coexistent CAD in patients with symptomatic bradyarrhythmia to find common anatomic basis for conduction disturbances and its relationship to conventional coronary risk factors. Methods In this prospective observational study, 929 patients who admitted for symptomatic bradyarrhythmia requiring permanent pacemaker implantation were included. All included patients underwent coronary angiography and were divided into groups based on angiographic findings. Association between conduction disturbances and these groups were analyzed. Results A total of 929 patients with mean age of 63.1 years were included in our study. We found age ≥50 years, male sex, presence of diabetes and hypertension as statistically significant predictors of abnormal coronary angiography. Obstructive CAD (≥50% stenosis) was found in 34.4% patients. Prevalence of single vessel disease, double vessel disease and triple vessel disease was 15.3%, 10.2% and 8.9% respectively. Severe coronary obstruction (≥90% obstruction) was found in 16.25% patients. Revascularization was advised in three fourth of cases of obstructive CAD. Approximately two third of patients didn’t have significant obstruction in coronaries supplying the conduction system. Type 4 was the commonest anatomy in obstructive CAD. SA Nodal artery was found more diseased in patients of SSS with p value of 0.01. Conclusion Obstructive CAD was found in one third of patients undergoing PPI. Age ≥50 years, male sex, diabetes and hypertension were found significantly correlated with presence of CAD and may act as important markers for the judgment of further coronary evaluation.

Background: To study the association of risk stratification and mortality outcomes of patients with high/intermediate risk acute pulmonary embolism who are given the guideline directed therapy after the diagnosis of pulmonary embolism.Methods: Prospective observational study of demographics, clinical profile, risk stratification, management and outcome of patients presenting with acute pulmonary embolism from October 2019to December 2020. Risk stratification was done as per ESC 2019 guidelines into high and intermediate categories, intermediate category patients were further stratified into intermediate-high and intermediate-low-risks.Results: 100 patients who were detected to have acute pulmonary thromboembolism with a mean age of 45.08 years with 60% being males were included in the study. There were 31 patients in high-risk group, 59 patients in intermediate-high subgroup, 10 patients in intermediate-low subgroup. Echocardiography was done in all patients. Outcome was relatively grave in these subgroups with overall mortality of 56 patients. 49 patients were thrombolysed with rTPA, 27patients with alteplase, 4 patients with streptokinase, 12patients who had contraindication to systemic thrombolysis were subjected to catheter directed thrombolysis and 8 patients were taken up for surgical embolectomy.Conclusions: Pulmonary embolism can present with unexplained dyspnea and atypical chest pain among other signs and symptoms. Early diagnosis, risk stratification and guideline directed prompt management can lead to favorable outcomes however; patients with high and intermediate risk at presentation are associated with higher mortality rate despite GDT.

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