Objective There is a probability that vaccination may lead to reduction in the severity and complications associated with COVID-19 infection among hospitalized patients. This study aimed to determine the characteristics, clinical profiles, and outcomes of COVID-19 infection in vaccinated and non-vaccinated patients. Design and data sources This prospective observational cohort study was conducted at the Aga Khan University Hospital (AKUH) and recruited COVID-19 patients admitted between June 1st and September 30th, 2021. Patients’ demographics, date of admission and discharge, comorbid conditions, immunization status for COVID-19 infection, presenting complaints, lab workup and computed tomography (CT) scan findings were obtained from the medical records. The primary outcome of the study was patients’ condition at discharge and the secondary outcomes included level of care, length of stay (LOS), requirement of non-invasive ventilation (NIV) and inotropic support. Results Among a cohort of 434 patients, 37.7% (n = 164), 6.6% (n = 29) and 55.5% (n = 241) were fully vaccinated, partially vaccinated, and unvaccinated, respectively. Around 3% and 42.9% of the patient required inotropic and NIV support respectively; however, there was no discernible difference between them in terms of vaccination status. In case of unvaccinated patients there were significantly increased number of critical care admissions (p-value 0.043). Unvaccinated patients had significantly higher median serum procalcitonin, ferritin, LDH and D-dimer levels. Around 5.3% (n = 23) of the patient required invasive ventilation and it was more common in unvaccinated patients (p-value 0.04). Overall, mortality rate was 12.2% (n = 53) and this was higher (16.2%, n = 39) in unvaccinated patients as compared to fully vaccinated patients (6.1%, n = 10, p-value 0.006). Conclusions Through this preliminary data, we can conclude that patient can develop severe and critical COVID-19 infection despite being vaccinated but this proportion is low as compared to unvaccinated population. So, uninterrupted endeavors need to be done to vaccinate as many individuals as possible. Furthermore, more effective vaccinations need to be developed to lessen the high death toll of COVID-19 infection.
Background: Although primary percutaneous coronary intervention (PPCI) is now frequently performed in Pakistan, there is little data available regarding its outcomes in tertiary care hospitals of Pakistan. This study was designed to determine the outcomes, and assess the factors influencing these outcomes of PPCI. Methods: It is a retrospective study conducted on the data of patients who presented to the department of Cardiology, Dr. Ruth K.M. Pfau Civil Hospital Karachi from October 2017 to March 2019 with acute ST-elevation myocardial infarction (STEMI) and underwent PPCI. A total of 115 patients were included in this study. Results: Out of the 115 patients, 111 had a successful PPCI. The total mortality was 2.6% (3 deaths). One of the patients was reported to have a stent thrombosis. No emergency coronary artery by-pass graft (CABG) was performed and none of the patients had a stroke or any major bleeding. An accelerated idioventricular rhythm (AIVR) was noted in 23 (20%) of the patients. Pre-procedure 87% of the patients had thrombolysis in myocardial infarction (TIMI) grade 0 and only 11.3% were having TIMI flow grade 1. Post procedure a vast majority of the patients (97%) achieved TIMI flow grade 3. Conclusions: Our study reports a very high success rate of PPCI which is consistent with the data reported from the Western countries. A major limitation of our study was the relatively small sample size. A larger sample size would have better predicted outcomes considering this is one of the few such studies in this region. Further studies with larger sample size and long-term follow up outcomes are recommended.
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