Introduction. There are limited population-level reports on the contemporary trends of the epidemiology, clinical features, resource utilization, and outcomes of necrotizing fasciitis (NF). Methods. We conducted a cohort study of Texas inpatient population, identifying hospitalizations with a diagnosis of NF during the years 2001–2010. The incidence, clinical features, resource utilization, and outcomes of NF hospitalizations were examined. Results. There were 12,172 NF hospitalizations during study period, with ICU admission in 50.3%. The incidence of NF rose 2.7%/year (P = 0.0001). Key changes between 2001-2002 and 2009-2010 included rising incidence of NF (5.9 versus 7.6 per 100,000 [P < 0.0001]), chronic comorbidities (69.4% versus 76.7% [P < 0.0001]), and development of ≥1 organ failure (28.5% versus 51.7% [P < 0.0001]). Inflation-adjusted hospital charges rose 37% (P < 0.0001). Hospital mortality (9.3%) remained unchanged during study period. Discharges to long-term care facilities rose from 12.2 to 30% (P < 0.0001). Conclusions. The present cohort of NF is the largest reported to date. There has been increasing incidence, chronic illness, and severity of illness of NF over the past decade, with half of NF hospitalizations admitted to ICU. Hospital mortality remained unchanged, while need for long-term care rose nearly 2.5-fold among survivors, suggesting increasing residual morbidity. The sources of the observed findings require further study.
BackgroundInfections are a well-known complication of pregnancy. However, pregnancy-associated severe sepsis (PASS) has not been as well-characterized, with limited population-level data reported to date. We performed a population-based study of the evolving patterns of the epidemiology, clinical characteristics, resource utilization, and outcomes of PASS in Texas over the past decade.MethodsThe Texas Inpatient Public Use Data File was used to identify pregnancy-associated hospitalizations and PASS hospitalizations for the years 2001 - 2010. The Texas Center for Health Statistics reports of live births, abortions and fetal deaths, and a previously reported population-based, age-specific linkage study on miscarriage were used to derive the annual total estimated pregnancies (TEPs). The incidence, demographics, clinical characteristics, resource utilization and outcomes of PASS were examined. Logistic regression modeling was used to explore the predictors of PASS and its associated mortality.ResultsThere were 4,060,201 pregnancy-associated hospitalizations and 1,007 PASS hospitalizations during study period. The incidence of PASS was increased by 236% over the past decade, rising from 11 to 26 hospitalizations per 100,000 TEPs. The key changes between 2001 - 2002 and 2009 - 2010 within PASS hospitalizations included: admission to ICU 78% vs. 90% (P = 0.002); development of ≥ 3 organ failures 9% vs. 35% (P < 0.0001); and inflation-adjusted median hospital charges (2,010 dollars) $64,034 vs. $89,895 (P = 0.0141). Hospital mortality (11%) remained unchanged during study period. Chronic liver disease (adjusted odds ratio (aOR) 41.4) and congestive heart failure (CHF) (aOR 20.5) were associated with the highest risk of PASS, in addition to black race, poverty, drug abuse, and lack of health insurance. The highest risk of death was among women with HIV infection (aOR 45.5), need for mechanical ventilation (aOR 4.5), drug abuse (aOR 3.0), and lacking health insurance (aOR 2.9).ConclusionsThe incidence, severity, and fiscal burden of PASS rose substantially over the past decade. Case fatality was lower than that for severe sepsis in the general population. Chronic liver disease and CHF pose especially high risk of PASS. Pregnant women with history of drug abuse and lacking health insurance are at high risk of both developing and dying with PASS, requiring extra vigilance for early diagnosis and targeted intervention.
BackgroundICU admission is uncommon among obstetric patients. Nevertheless, the epidemiology of ICU utilization is considered to be a useful proxy for study of severe maternal morbidity and near-miss events. However, there is paucity of population-level studies in obstetric patients in the United States.MethodsThe Texas Inpatient Public Use Data File and state-based reports were used to identify pregnancy-associated hospitalizations and those involving admission to ICU (n = 158,410) for the years 2001 - 2010. The clinical characteristics, outcomes, and the overall incidence and temporal trends of ICU admission were examined and stratified analyses of pregnancy outcomes were performed in specific categories of pregnancy-associated hospitalizations. In addition, ICU utilization among hospitalizations with maternal complications and organ dysfunction was evaluated.ResultsChronic comorbidities (9.7%) and presence of organ dysfunction (6.2%) were uncommon among ICU admissions, with 26.5% having high severity of illness. The incidence of ICU admission was 39.0 per 1,000 pregnancy-associated hospitalizations-years. Marked variability was found in ICU admission both across pregnancy outcomes (ranging from 0.6 per 1,000 abortions-years to 85.9 per 1,000 stillbirths-years) and categories of pregnancy-associated hospitalizations (ranging from 32.1 per 1,000 delivery hospitalizations-years to 144.8 per 1,000 postpartum hospitalizations-years). The incidence of ICU admission rose 68% among pregnancy-associated hospitalizations and for all examined subgroups, except abortion. Preeclampsia/eclampsia (23.3%) and obstetric hemorrhage (6.9%) were the most common maternal complications among ICU admissions. Four hundred fourteen women (0.3%) died, while 97.6% were discharged home.ConclusionsThis study documents the highest incidence of ICU utilization in obstetric patients in the US to date. The findings suggest low threshold for obstetric ICU admissions in the state and do not support comparative use of ICU utilization as surrogate measure for populations’ burden of severe maternal morbidity and near-miss events. Nevertheless, the demonstrated tremendous heterogeneity in ICU utilization across examined subgroups identifies new high-risk groups of obstetric patients that would benefit from heightened clinician vigilance and timely ICU triage and care. Further studies are needed to inform reduction in avoidable variability in ICU utilization to both enhance maternal, fetal, and neonatal outcomes and to improve resource allocation.
Background: Infectious complications are frequent in severe acute pancreatitis (SAP) but multinational epidemiologic data are lacking. The aim of the study was to analyze the characteristics of the infectious complications and antimicrobial use in this setting. Methods: One-day point prevalence study of infection in critically ill patients (Extended Prevalence of Infection in the ICU-II study), performed in 1,265 ICUs in 75 countries. Results: Of the 13,796 patients in the study, 159 were admitted with SAP. One-hundred sixteen (73%) had infections: 31% intra-abdominal, 16% extra-abdominal, and 26% both. Gram-negative bacteria were more prevalent than gram-positive organisms, anaerobes, or fungi. Therapeutically, penicillins and other beta-lactams were used most frequently. Prophylactic antibiotics were administered to 24% of the patients with SAP. Conclusions: Infections are frequent in patients admitted with SAP; most are intra-abdominal infections. Microbiology is diverse with gram-negative micro-organisms most frequently isolated. Most patients admitted to the ICU for SAP receive antibiotics at some point.
Pregnancy is associated with an increased risk of infection related to its associated mechanical and physiological changes. Sepsis remains among the top causes of maternal death worldwide and is associated with substantial maternal morbidity. However, there are sparse data on pregnancy-associated severe sepsis (PASS), related in part to infrequent reports, varying case definitions and methodological approach, small cohort size, and often limited focus on severe sepsis in selected phases of pregnancy outcomes. Available reports vary, but indicate that PASS is a rare but likely increasing complication, and it is more likely to develop with increased maternal age, among minority women, the poor, those lacking health insurance, those with chronic illness or pregnancy-associated complications, and following invasive procedures. Obstetric sites of infection are the most prevalent, but non-obstetric infections often underlie pregnancy-associated severe sepsis, though the source of infection is often not readily apparent during initial care. Women with PASS can have a rapidly fatal course and require heightened clinician vigilance for early diagnosis and timely effective intervention. Nevertheless, available reports raise concerns about prevalent substandard care of these patients, contributing to adverse outcomes. The case fatality of PASS appears lower than that in the general population with severe sepsis, while the long-term outcomes of survivors remain unknown.Electronic supplementary materialThe online version of this article (doi:10.1007/s40121-014-0037-7) contains supplementary material, which is available to authorized users.
Background: Sepsis is the most common cause of premature death among patients with systemic lupus erythematosus (SLE) aged ≤ 50 years in the United States, and infection is the most common cause of admission to the ICU among SLE patients. However, there are no population-level data on the patterns of the demand for critical care services among hospitalized septic patients with SLE or the outcomes of those admitted to the ICU. Methods: We performed a retrospective cohort study, using the Texas Inpatient Public Use Data File, to identify SLE hospitalizations aged ≥ 18 years and the subgroups with sepsis and ICU admission during 2009-2014. The patterns of ICU admission among septic hospitalizations were examined. Logistic regression modeling was used to identify predictors of short-term mortality (defined as hospital death or discharge to hospice) among ICU admissions with sepsis and to estimate the risk-adjusted short-term mortality among ICU admissions with and without sepsis. Results: Among 94,338 SLE hospitalizations, 17,037 (18.1%) had sepsis and 9409 (55.2%) of the latter were admitted to the ICU. Sepsis accounted for 51.5% of the growth in volume of ICU admissions among SLE hospitalizations during the study period. Among ICU admissions with sepsis, 25.3% were aged ≥ 65 years, 88.6% were female, and 64.4% were non-white minorities. The odds of short-term mortality among septic ICU admissions were increased among those lacking health insurance (adjusted odds ratio 1.40 [95% confidence interval 1.07-1.84]), while being unaffected by gender and race/ethnicity, and remaining unchanged over the study period. On adjusted analyses among ICU admissions, the short-term mortality among those with and without sepsis was 13% (95% CI 12.6-13.3) and 2.7% (95% CI 2.6-2.8), respectively. Sepsis was associated with 63.6% of all short-term mortality events. Conclusions: Sepsis is a major, incremental driver of the demand for critical care services among SLE hospitalizations. Despite its relatively low mortality, sepsis was associated with most of the short-term deaths among ICU patients with SLE.
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