RESUMEN
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), also known as coronavirus disease 2019 (COVID-19) is known to cause a cluster of flu-like illnesses and pneumonia with evolving understanding of other systemic manifestations. Currently, the known cardiac manifestations of COVID-19 include myocardial injury, acute coronary syndrome, and arrhythmias. In this report, we describe a case of pericarditis-an unusual cardiac manifestation observed in a patient with COVID-19. A 63-year-old male presented with history of fever, cough and chest pain. Electrocardiogram (EKG) demonstrated diffuse ST-T wave changes on all the leads, with normal troponin-T levels. Echocardiograph showed mild pericardial effusion without any regional wall motion abnormality. Subsequent chest radiograph and coronary angiography were normal. In view of ongoing COVID-19 pandemic, nasopharyngeal swab was performed, which was positive. Detailed etiological workup for pericarditis, including infectious and inflammatory causes were unremarkable. Viral pericarditis (possibly caused by COVID-19) was diagnosis of exclusion and patient was treated with hydroxychloroquine 200 mg twice a day, colchicine 0.5 mg twice a day, and lopinavir/ritonavir 200 mg/50 mg tablet twice a day for 10 days during admission. He was discharged with hydroxychloroquine 200 mg twice daily and colchicine 0.5 mg once daily for 15 days. On subsequent follow-up clinic visit, he reported resolution of symptoms. The purpose of this report is to add a potential cardiovascular complication of COVID-19 to the literature. Awareness of this manifestation can lead to timely laboratory and imaging examinations with potential to provide correct treatment and good outcome.
RESUMEN
INTRODUCTION: For adequate adenoma detection rate (ADR), guidelines recommend a mean withdrawal time (MWT) of ≥ 6 min. ADR has been shown to correlate strongly with proximal serrated polyp detection rate (PSP-DR), which is another suggested quality measure for screening colonoscopy. However, the impact of directly measured withdrawal time on PSP-DR has not been rigorously studied. We examined the relationship between MWT to ADR and PSP-DR, with the aim of identifying a functional threshold withdrawal time associated with both increased ADR and PSP-DR. METHODS: This was a retrospective study of endoscopy and pathology data from average-risk screening colonoscopy examinations performed at a large system with six endoscopy laboratories. A natural language processing tool was used to determine polyp location and histology. ADR and PSP-DR were calculated for each endoscopist. MWT was calculated from colonoscopy examinations in which no polyps were resected. RESULTS: In total, 31,558 colonoscopy examinations were performed, of which 10,196 were average-risk screening colonoscopy examinations with cecal intubation and adequate prep by 24 gastroenterologists. When assessing the statistical significance of increasing MWT by minute, the first significant time mark for PSP-DR was at 11 min at a rate of 14.2% (p = 0.01). There was a significant difference comparing aggregated MWT < 11 min compared to ≥ 11 min looking at the rates of adenomas [OR 1.65 (1.09-2.51)] and proximal serrated polyps [OR 1.81 (1.06-3.08)]. While ADR linearly correlated well with MWT (R = 0.76, p < 0.001), the linear relationship with PSP-DR was less robust (R = 0.42, p = 0.043). CONCLUSION: In this large cohort of average-risk screening colonoscopy, a MWT of 11 min resulted in a statistically significant increase in both ADR and PSP-DR. Our data suggest that a longer withdrawal time may be required to meet both quality metrics.