Abstract 10819: Prognostic Value of Coronary Artery Calcium Score in Acute Chest Pain Patients Without Known Coronary Artery Disease in Emergency Department: Systematic Review and Meta-analysis
Backgrounds: Role of coronary artery calcium score (CACS) in acute chest pain patients is currently not well defined. The objective of this study was to investigate the prognostic value of CACS obtained by noncontrast electrocardiogram-gated CT in acute chest pain patients suspected for cardiac origin in emergency department. Methods: We search Pubmed, Embase, Cochrane databases for longitudinal studies of CACS in acute chest pain patients without known coronary artery disease (CAD) in emergency department which reported major adverse cardiovascular events (MACE), consisting of death, nonfatal myocardial infarction (NFMI), revascularization or stroke. Pooled annualized event rate, risk ratios and 95% confidence intervals (CI) were analyzed. A random-effect, generic inverse variance model was used. Result: Eight studies evaluated 3556 patients (mean age = 51 years, 47% men) with the pooled prevalence of hypertension, diabetes mellitus, dyslipidemia and smoking of 42%, 16%, 33% and 33% respectively. During a median follow-up of 5 months (range 1-60 months, 37234 patient-months), the overall pooled MACE rate was 7.6%/y. The pooled event rate of MACE for CACS=0 versus CACS>0 was 0.8%/y (13 events in 18874 patient-months) versus 14.6%/y (224 events in 18360 patient-months). The pooled risk ratio with CACS=0 was 0.04 (95% CI: 0.02-0.07, p<0.001) for MACE compared to CACS>0. The sensitivity, specificity, positive and negative predictive value, positive and negative likelihood ratio of CACS for MACE was 94.5%, 64.1%, 15.8%, 99.4%, 2.63 and 0.09 respectively. The heterogeneity among studies was low with an I 2 of 13%. Conclusion: In acute-chest-pain patients without known CAD presenting to emergency department, MACE was rare in those with CACS=0. Zero CACS by noncontrast electrocardiogram-gated CT in this population has high negative predictive value (>99%) for subsequent cardiac events.
Inpatient epidemiology, healthcare utilization, and association with comorbidities of Turner syndrome: A National Inpatient Sample study
Abstract We aimed to investigate the prevalence, resource utilization, and comorbidities of patients with Turner syndrome (TS) hospitalized in the United States. We identified patients within the Nationwide Inpatient Sample database from the year 2017 to 2019. A propensity‐matched cohort of non‐TS patients from the same database was constructed to serve as comparators. There were 9845 TS patients, corresponding to inpatient prevalence of 10.4 per 100,000 admissions. The most common admission diagnosis was sepsis (27.9%). TS patients had higher inpatient mortality (adjusted odds ratio 2.16, 95% confidence interval 1.57–2.96) and morbidity, including shock, ICU admission, acute kidney injury, systemic inflammatory response syndrome, acute respiratory distress syndrome, and multi‐organ failure. Increased risk of comorbidities, such as stroke, myocardial infarction, autoimmune diseases, and non‐variceal gastrointestinal bleeding, was observed. TS patients had longer length of stay (LOS; 5.1 days vs. 4.5 days, p < 0.01) and displayed a mean additional $5382 ( p < 0.01) in total hospital costs and a mean additional $20,083 ( p < 0.01) in total hospitalization charges. In conclusion, hospitalization of patients with TS was associated with a significantly higher inpatient morbidity, mortality, expenditures, and longer LOS compared to non‐TS patients. Patients with TS had a higher risk of cardiovascular complications, autoimmune diseases, and gastrointestinal bleeding.
Antineutrophil Cytoplasmic Autoantibodies–Associated Vasculitides and Risk of Stroke: A Systematic Review and Meta-analysis
Background: Increased incidence of cardiovascular disease, including stroke, has been consistently observed in patients with chronic inflammatory diseases, although data on antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitides (AAV) are still limited due to the relative rarity of the disease. Methods: Two investigators independently searched published studies indexed in MEDLINE and EMBASE database from inception to June 2019 using the search terms related to AAV and stroke. The eligible study must be cohort study that consisted of cohort of patients with AAV and cohort of patients without AAV. The study must follow the participants for incident stroke. The magnitude of difference in the incidence of stoke between the cohorts must be reported. Pooled effect estimates were calculated by combining the effect estimate of each eligible study using generic inverse variance method. Statistical heterogeneity was assessed using the Cochran's Q test and I 2 statistics. All analyses were conducted using RevMan 5.3 software from the Cochrane Collaboration. Results: A total of six cohort studies fulfilled the eligibility criteria and were included into the meta-analysis. Patients with AAV had a higher risk of developing incident stroke than individuals without AAV with the a pooled risk ratio of 2.02 (95% CI, 1.02–4.00; I 2 of 89%). Funnel revealed no suggestive evidence of publication bias. Conclusion: A significantly higher risk of incident stroke among patients with AAV than individuals without AAV was demonstrated by this meta-analysis.
Risk of Sudden Death in a General Unbiased Epidemiological Cohort of Sarcoidosis
Background Sarcoidosis is an inflammatory, noncaseating, granulomatous disorder of unknown cause that can affect any body system and is associated with cardiovascular disease including sudden cardiac death (SCD). Cardiac involvement in sarcoidosis is associated with higher risk of SCD, but the SCD risk in the general sarcoidosis population is unknown. We aimed to determine the risk of SCD in people with sarcoidosis versus the matched general population. Methods and Results A population‐based cohort of sarcoidosis and age‐ and sex‐matched comparators from January 1, 1976 to December 31, 2013 was used; presence of other comorbidities in the comparator group was not an exclusion criterion. Mortality, including time, place, and cause of death were measured and manually adjudicated for SCD events. Incidence rates are reported per 100 000 person‐years, and Cox models were used for group comparisons. Of the 345 incident cases of sarcoidosis (171 men; 50%) there were 58 reported deaths; 10 were definite/probable SCD versus 57 all‐cause and 9 SCDs in comparators. Median follow‐up was 12.9 years (interquartile range, 6.0–23.4 years) . Incidence rate of SCD in sarcoidosis was 192 (95% CI, 92–352) versus 155 (95% CI, 71–294) in comparators (hazard ratio [HR], 1.28 (95% CI, 0.52–3.17). Nocturnal deaths were more frequent in sarcoidosis 57 (95% CI, 12–168) versus 17 (95% CI, 0.4–95) (HR, 3.76 [95% CI, 0.39–36.47]). No significant differences were detected between the groups by sex, age, calendar year of diagnosis, or disease duration. Conclusions In a population‐based cohort of patients with sarcoidosis, the risk for SCD compared with matched comparators was not increased. There were more nocturnal deaths among patients with sarcoidosis, yet this was statistically insignificant.
Esophageal Pathophysiologic Changes and Adenocarcinoma After Bariatric Surgery: A Systematic Review and Meta-Analysis
INTRODUCTION: To assess the effects of sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB) on acid reflux and esophageal motor function and to evaluate the observation of esophageal adenocarcinoma (EAC) after bariatric surgery. METHODS: We searched 5 databases for adults who underwent SG or RYGB and had esophageal pH test and/or esophageal manometry before and after surgery. A separate systemic search of observational studies and a retrospective review at 3 institutions of adults who developed EAC after these surgeries were conducted. Outcomes were changes in manometric and pH parameters and EAC cases after SG and RYGB. RESULTS: A total of 27 nonrandomized studies (SG: 612 patients; RYGB: 470 patients) were included. After SG, lower esophageal sphincter pressure and esophageal body amplitude were decreased and the risk of ineffective esophageal motility was increased. Total and recumbent acid exposure times were increased. After RYGB, an increased risk of ineffective esophageal motility was observed. Total, upright, and recumbent acid exposure times were decreased. The total reflux episodes remained unchanged but with increased nonacid reflux and decreased acid reflux events. Including our largest series, 31 EAC cases have been reported to date after SG and RYGB. DISCUSSION: This systematic review demonstrates increased acid reflux after SG and decreased acid reflux after RYGB. An observed increased nonacid reflux after RYGB might contribute to failure of gastroesophageal reflux disease improvement. This refluxate might be noxious to the esophagus, warranting further studies. RYGB might not entirely preserve esophageal function as previously believed.
Background/aims The number of cases with coronavirus disease 2019 (COVID-19) has exceeded seven million worldwide. However, the data describing the global prevalence of liver injury associated with COVID-19 is lacking secondary to the novelty of this ongoing pandemic. Therefore, we conducted a meta-analysis to determine the association between COVID-19 and liver injury. Methods A systematic literature search of indexed databases including, PubMed, Medline, and Embase databases from inception to 14 April 2020, was used to identify studies that reported data of liver chemistry in patients diagnosed with COVID 19. The overall prevalence of abnormal liver chemistry and relevant 95% confidence interval was used to estimate the pooled results studies. Results Sixty-four studies with 11 245 patients with COVID-19 were included. The pattern of abnormal liver enzymes was notable for higher aspartate aminotransferase (AST) than alanine aminotransferase (ALT) levels. The overall global prevalence of elevated AST, ALT, total bilirubin, gamma-glutamyltransferase (GGT), and alkaline phosphatase was 23.2, 21.2, 9.7, 15.0, and 4.0%, respectively. The prevalence of elevated AST was substantially higher among those with severe cases (45.5%) compared to non-severe cases (15.0%). Co-existing chronic liver disease presented up to 37.6% of patients with COVID-19. Conclusion A fourth of COVID-19 patients had elevated liver enzymes and associated with disease severity. Our study may be used as a guide for clinicians and epidemiologists to proactively identify other sources of injury and illness in patients diagnosed with COVID-19. Intensive monitoring for liver injury may be needed in cases with severe COVID-19.
The burden of Clostridioides difficile infection in patients with history of liver transplant and during index admission
Background/objectives Liver transplant recipients have an increased risk of Clostridioides difficile infection (CDI) which associated with higher morbidity and mortality. CDI in liver transplant has been argued to increase hospital costs, charges, and length of stay (LOS) in small studies. However, no recent nationwide analysis determines these outcomes. Methods This is a retrospective cohort study using the National Inpatient Sample 2016. All patients with ICD10CM diagnostic codes for CDI were included. The cohort was stratified for the history of liver transplant and liver transplant index admission. The primary outcome was the odds of CDI in both patient cohorts to patients without liver transplant. Secondary outcomes were inpatient morbidity, mortality, resource utilization, colectomy rates, LOS, and total hospital costs and charges. Results A total of 360 364 patients with CDI were identified, 1665 had a history of liver transplant and 155 had liver transplant during that admission. Patients with a history of liver transplant had increased odds of CDI compared to patients with no history of liver transplant (adjusted odds ratio 2.78; 95% confidence interval, 2.44–3.16). Patients with CDI had greater odds of shock, acute kidney injury, ICU stay, organ failure and significantly higher costs, charges and LOS. Conclusions Patients with a history of liver transplant increased odds of CDI. CDI with history of liver transplant and the index admission for liver transplant had higher odds of morbidity and resource utilization. Clinicians must maintain a high index of suspicion for CDI for early diagnosis and appropriate initiation of treatment.
Vitamin D deficiency is not associated with graft versus host disease after hematopoietic stem cell transplantation: A meta‐analysis
AbstractObjectiveVitamin D status plays an important role in immunoregulation, and a deficiency is believed to be related to Graft Versus Host Disease (GVHD) in patients after hematopoietic stem cell transplantation (HSCT). We aim to study the association between vitamin D deficiency and GVHD after HSCT.MethodsA literature search was conducted utilizing MEDLINE, EMBASE, and The Cochrane Library Database from inception to July 2019. Eligible studies were required to1 be clinical trials or observational studies (cohort, case‐control, or cross‐sectional studies);2 provide data to calculate the odds ratios (OR) of GVHD in HSCT patients with vitamin D deficiency. Two reviewers independently extracted the data and assessed the risk of bias. Pooled odds ratios (OR) with 95% confidence interval (CI) were estimated using random‐effects meta‐analysis through the Comprehensive Meta‐Analysis 3.3 software.ResultsIn total, 8 observational studies consisting of 1335 HSCT patients were enrolled in this systematic review. Overall, there was no significant association between vitamin D deficiency and acute GVHD (OR = 1.06, 95% CI 0.74‐1.53, P > 0.05). There was no significant association between vitamin D deficiency and chronic GVHD (OR = 1.75, 95% CI 0.72‐4.26, P > 0.05). Funnel plots and Egger regression asymmetry test were performed and showed no publication bias.ConclusionThere is not a statistically significant association between vitamin D deficiency and neither acute nor chronic GVHD.
Impact of ANCA-Associated Vasculitis on Outcomes of Hospitalizations for Goodpasture’s Syndrome in the United States: Nationwide Inpatient Sample 2003–2014
Background and objectives: Goodpasture’s syndrome (GS) is a rare, life-threatening autoimmune disease. Although the coexistence of anti-neutrophil cytoplasmic antibody (ANCA) with Goodpasture’s syndrome has been recognized, the impacts of ANCA vasculitis on mortality and resource utilization among patients with GS are unclear. Materials and Methods: We used the National Inpatient Sample to identify hospitalized patients with a principal diagnosis of GS from 2003 to 2014 in the database. The predictor of interest was the presence of ANCA-associated vasculitis. We tested the differences concerning in-hospital treatment and outcomes between GS patients with and without ANCA-associated vasculitis using logistic regression analysis with adjustment for other clinical characteristics. Results: A total of 964 patients were primarily admitted to hospital for GS. Of these, 84 (8.7%) had a concurrent diagnosis of ANCA-associated vasculitis. Hemoptysis was more prevalent in GS patients with ANCA-associated vasculitis. During hospitalization, GS patients with ANCA-associated required non-significantly more mechanical ventilation and non-invasive ventilation support, but non-significantly less renal replacement therapy and plasmapheresis than those with GS alone. There was no significant difference in in-hospital outcomes, including organ failure and mortality, between GS patients with and without ANCA-associated vasculitis. Conclusions: Our study demonstrated no significant differences between resource utilization and in-hospital mortality among hospitalized patients with coexistence of ANCA vasculitis and GS, compared to those with GS alone.
Hereditary hemochromatosis and risk of joint replacement surgery: a systematic review and meta-analysis
Background/Objectives: Arthritis is a known manifestation of hereditary hemochromatosis. However, whether patients with hereditary hemochromatosis have an increased risk of having joint replacement surgery compared to the general population is still unknown. This meta-analysis was conducted to better characterize this risk. Methods: A comprehensive literature review was conducted utilizing the MEDLINE and EMBASE databases through September 2019 to identify all cohort studies that compared prevalence or incidence of joint replacement surgery (hip, ankle, or knee) between patients with hereditary hemochromatosis and individuals without hereditary hemochromatosis. Effect estimates from each study were extracted and combined together using the random-effect, generic inverse variance method of DerSimonian and Laird. Results: A total of five studies with 1 293 407 participants fulfilled the eligibility criteria and were included in the meta-analysis. Overall, the risk of having joint replacement surgery was significantly increased in patients with hereditary hemochromatosis compared to individuals without hereditary hemochromatosis with the pooled relative risk (RR) of 3.32 [95% confidence interval (CI), 1.60–6.86; I 2 88%]. Analysis by joint found a significantly increased risk of having hip and ankle replacement surgery among patients with hereditary hemochromatosis compared with the pooled RR of 2.62 (95% CI, 2.09–3.30; I 2 47%) and 8.94 (95% CI, 3.85–20.78; I 2 14%), respectively. The risk of having knee replacement surgery was also increased but was not statistically significant (pooled RR 1.57, 95% CI, 0.83–2.98; I 2 66%). Conclusions: A significantly increased risk of needed joint replacement surgery among patients with hereditary hemochromatosis compared to patients without hereditary hemochromatosis was demonstrated in this study. Further studies are required to determine whether this association is causal.