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Propylene glycol (PG) is a diol (a double alcohol) that is commonly used as a food additive to preserve shelf life and enhance flavors, texture, and appearance. Although PG makes up only a small percentage of cornstarch, ingestion of large doses can cause lactic acidosis leading to hyperosmolarity, high anion gap metabolic acidosis (HAGMA), and a sepsis-like syndrome. A 17-year-old female presented to our emergency department (ED) with chronic chest pain, dyspnea, nausea, and vomiting. Laboratory testing showed an elevated anion gap of 18 mEq/L with no osmolar gap. Toxicology screening was negative. Twelve hours after ED arrival, she admitted to consuming one box of cornstarch daily for the past 6 months. She was admitted to the intensive care unit (ICU) with multisystem organ failure due to propylene glycol toxicity. After empiric treatment with fomepizole and continuous renal replacement therapy, her clinical status gradually improved. This case highlights the importance of obtaining a thorough dietary history in patients with suspected toxicities, especially when laboratory values demonstrate an unexplained HAGMA and/or lactic acidosis. Prompt recognition and therapeutic intervention with fomepizole, a potent inhibitor of alcohol dehydrogenase, is essential in reducing life-threatening sequelae following toxic alcohol ingestions.
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Patients with cirrhosis have abnormal coagulation indices such as a high international normalized ratio and low platelet count, but these do not correlate well with periprocedural bleeding risk. We sought to develop a consensus among the multiple stakeholders in cirrhosis care to inform process measures that can help improve the quality of the periprocedural management of coagulopathy in cirrhosis. We identified candidate process measures for periprocedural coagulopathy management in multiple contexts relating to the performance of paracentesis and upper endoscopy. An 11-member panel with content expertise was convened. It included nominees from professional societies for interventional radiology, transfusion medicine, and anesthesia as well as representatives from hematology, emergency medicine, transplant surgery, and community practice. Each measure was evaluated for agreement using a modified Delphi approach (3 rounds of rating) to define the final set of measures. Out of 286 possible measures, 33 measures made the final set. International normalized ratio testing was not required for diagnostic or therapeutic paracentesis as well as diagnostic endoscopy. Plasma transfusion should be avoided for all paracenteses and diagnostic endoscopy. No consensus was achieved for these items in therapeutic intent or emergent endoscopy. The risks of prophylactic platelet transfusions exceed their benefits for outpatient diagnostic paracentesis and diagnostic endosopies. For the other procedures examined, the risks outweigh benefits when platelet count is >20,000/mm 3 . It is uncertain whether risks outweigh benefits below 20,000/mm 3 in other contexts. No consensus was achieved on whether it was permissible to continue or stop systemic anticoagulation. Continuous aspirin was permissible for each procedure. Clopidogrel was permissible for diagnostic and therapeutic paracentesis and diagnostic endoscopy. We found many areas of consensus that may serve as a foundation for a common set of practice metrics for the periprocedural management of coagulopathy in cirrhosis.
Asunto(s)
Trastornos de la Coagulación Sanguínea , Técnica Delphi , Cirrosis Hepática , Paracentesis , Humanos , Paracentesis/métodos , Cirrosis Hepática/complicaciones , Trastornos de la Coagulación Sanguínea/etiología , Trastornos de la Coagulación Sanguínea/diagnóstico , Consenso , Relación Normalizada InternacionalRESUMEN
BACKGROUND: The use of ABCD3-I score for Transient ischemic attack (TIA) evaluation has not been widely investigated in the ED. We aim to determine the performance and cost-effectiveness of an ABCD3-I based pathway for expedited evaluation of TIA patients in the ED. METHODS: We conducted a single-center, pre- and post-intervention study among ED patients with possible TIA. Accrual occurred for seven months before (Oct. 2016-April 2017) and after (Oct. 2017-April 2018) implementing the ABCD3-I algorithm with a five-month wash-in period (May-Sept. 2017). Total ED length of stay (LOS), admissions to the hospital, healthcare cost, and 90-day ED returns with subsequent stroke were analyzed and compared. RESULTS: Pre-implementation and post-implementation cohorts included 143 and 118 patients respectively. A total of 132 (92%) patients were admitted to the hospital in the pre-implementation cohort in comparison to 28 (24%) patients admitted in the post-implementation cohort (pâ¯<â¯0.001) with similar 90-day post-discharge stroke occurrence (2 in pre-implementation versus 1 in post-implementation groups, pâ¯>â¯0.05). The mean ABCD2 scores were 4.5 (1.4) in pre- and 4.1 (1.3) in post-implementation cohorts (pâ¯=â¯0.01). The mean ABCD3-I scores were 4.5 (1.8) in post-implementation cohorts. Total ED LOS was 310â¯min (201, 420) in pre- and 275â¯min (222, 342) in post-implementation cohorts (pâ¯>â¯0.05). Utilization of the ABCD3-I algorithm saved an average of over 40% of total healthcare cost per patient in the post-implementation cohort. CONCLUSIONS: The initiation of an ABCD3-I based pathway for TIA evaluation in the ED significantly decreased hospital admissions and cost with similar 90-day neurological outcomes.
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Ataque Isquémico Transitorio/diagnóstico , Transportadoras de Casetes de Unión a ATP/análisis , Transportadoras de Casetes de Unión a ATP/sangre , Anciano , Estudios de Cohortes , Servicio de Urgencia en Hospital/organización & administración , Servicio de Urgencia en Hospital/estadística & datos numéricos , Femenino , Humanos , Ataque Isquémico Transitorio/sangre , Ataque Isquémico Transitorio/fisiopatología , Tiempo de Internación/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Medición de Riesgo/métodos , Factores de Riesgo , Accidente Cerebrovascular/prevención & control , Factores de TiempoRESUMEN
BACKGROUND: Emergency department (ED) shift handoffs are potential sources of delay in care. We aimed to determine the impact that using standardized reporting tool and process may have on throughput metrics for patients undergoing a transition of care at shift change. METHODS: We performed a prospective, pre- and post-intervention quality improvement study from September 1 to November 30, 2015. A handoff procedure intervention, including a mandatory workshop and personnel training on a standard reporting system template, was implemented. The primary endpoint was patient length of stay (LOS). A comparative analysis of differences between patient LOS and various handoff communication methods were assessed pre- and post-intervention. Communication methods were entered a multivariable logistic regression model independently as risk factors for patient LOS. RESULTS: The final analysis included 1,006 patients, with 327 comprising the pre-intervention and 679 comprising the post-intervention populations. Bedside rounding occurred 45% of the time without a standard reporting during pre-intervention and increased to 85% of the time with the use of a standard reporting system in the post-intervention period (P < 0.001). Provider time (provider-initiated care to patient care completed) in the pre-intervention period averaged 297 min, but decreased to 265 min in the post-intervention period (P < 0.001). After adjusting for other communication methods, the use of a standard reporting system during handoff was associated with shortened ED LOS (OR = 0.60, 95% CI 0.40 - 0.90, P < 0.05). CONCLUSIONS: Standard reporting system use during emergency physician handoffs at shift change improves ED throughput efficiency and is associated with shorter ED LOS.
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OBJECTIVE: Urinary tract infection (UTI) is a common cause of severe sepsis, and anatomic urologic obstruction is a recognized factor for complicated disease. We aimed to identify the incidence of urinary obstruction complicating acute septic shock and determine the characteristics and outcomes of this group. METHODS: Patients prospectively enrolled in a sepsis treatment pathway registry between October 2013 and July 2014 were reviewed for the diagnosis of UTI. Standardized medical record review was performed to confirm sepsis due to UTI and determine clinical variables including the presence of anatomic urinary obstruction. Patients with septic shock due to UTI with obstruction were compared with those without obstruction. The primary outcomes were incidence of urinary obstruction and hospital mortality. RESULTS: Among 1084 registry enrollees, 209 (19.2%) met inclusion criteria for the study. Acute anatomic obstruction was identified in 22 (10.5%) patients. Hospital mortality in patients with obstruction was 27.3% compared with 11.2% in patients without obstruction (absolute difference of 16.1%; P = .03; 95% confidence interval [CI], 1.2%-30.9%). Hospital length of stay among survivors was 12.8 days compared with 8.3 days (absolute difference of 4.5 days; P = .04; 95% CI, 0.2-8.8 days). History of urinary stone disease was independently associated with obstruction (odds ratio, 5.6; 95% CI, 2.2-14.3). CONCLUSIONS: Approximately 1 in 10 patients presenting with septic shock due to a urinary source is complicated by anatomic urinary obstruction. These patients have significantly higher mortality compared with patients without obstruction. Early imaging of patients with septic shock due to suspected urinary source should be considered to identify obstruction requiring emergency intervention.
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Choque Séptico/etiología , Infecciones Urinarias/complicaciones , Enfermedades Urológicas/complicaciones , Anciano , Anciano de 80 o más Años , Mortalidad Hospitalaria , Humanos , Cálculos Renales/complicaciones , Tiempo de Internación , Persona de Mediana Edad , Estudios Retrospectivos , Choque Séptico/mortalidad , Cálculos Ureterales/complicaciones , Obstrucción Ureteral/complicaciones , Obstrucción del Cuello de la Vejiga Urinaria/complicacionesRESUMEN
Acute vascular thrombotic disease, including acute myocardial infarction and pulmonary embolism, accounts for 70% of sudden outpatient cardiac arrest. The role of intra-arrest thrombolytic administration aimed at reversing the underlying cause of cardiac arrest remains an area of debate with recent guidelines advising against routine use. We present a case of prolonged refractory ventricular fibrillation electrical storm in a patient who demonstrated intra-arrest electrocardiographic and sonographic markers confirming acute myocardial infarction. Return of spontaneous circulation was rapidly achieved after rescue intra-arrest bolus thrombolysis.Highlights of this case are discussed in the context of the current evidence for thrombolytic therapy in cardiac arrest with specific attention to the issue of patient selection.
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Fibrinolíticos/uso terapéutico , Infarto del Miocardio/tratamiento farmacológico , Paro Cardíaco Extrahospitalario/etiología , Activador de Tejido Plasminógeno/uso terapéutico , Fibrilación Ventricular/tratamiento farmacológico , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/complicaciones , Infarto del Miocardio/diagnóstico , Recurrencia , Tenecteplasa , Fibrilación Ventricular/etiologíaRESUMEN
Certain limitations of the neurosphere assay (NSA) have resulted in a search for alternative culture techniques for brain tumor-initiating cells (TICs). Recently, reports have described growing glioblastoma (GBM) TICs as a monolayer using laminin. We performed a side-by-side analysis of the NSA and laminin (adherent) culture conditions to compare the growth and expansion of GBM TICs. GBM cells were grown using the NSA and adherent culture conditions. Comparisons were made using growth in culture, apoptosis assays, protein expression, limiting dilution clonal frequency assay, genetic affymetrix analysis, and tumorigenicity in vivo. In vitro expansion curves for the NSA and adherent culture conditions were virtually identical (P=0.24) and the clonogenic frequencies (5.2% for NSA vs. 5.0% for laminin, P=0.9) were similar as well. Likewise, markers of differentiation (glial fibrillary acidic protein and beta tubulin III) and proliferation (Ki67 and MCM2) revealed no statistical difference between the sphere and attachment methods. Several different methods were used to determine the numbers of dead or dying cells (trypan blue, DiIC, caspase-3, and annexin V) with none of the assays noting a meaningful variance between the two methods. In addition, genetic expression analysis with microarrays revealed no significant differences between the two groups. Finally, glioma cells derived from both methods of expansion formed large invasive tumors exhibiting GBM features when implanted in immune-compromised animals. A detailed functional, protein and genetic characterization of human GBM cells cultured in serum-free defined conditions demonstrated no statistically meaningful differences when grown using sphere (NSA) or adherent conditions. Hence, both methods are functionally equivalent and remain suitable options for expanding primary high-grade gliomas in tissue culture.
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Fournier's gangrene is a form of rapidly progressive necrotising fasciitis involving the soft tissues of the male genitalia. The treatment for this urologic emergency is immediate surgical debridement. Misdiagnosis of Fournier's may lead to unnecessary surgical interventions, making careful recognition of systemic signs of illness crucial. The authors present a case of a 48-year-old patient who presented emergently with massive scrotal oedema, erythema and pain suspicious for Fournier's gangrene and systemic signs of illness, including palpable purpura and leukocytoclastic vasculitis on biopsy.
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Edema/diagnóstico , Gangrena de Fournier/diagnóstico , Hemorragia/diagnóstico , Escroto/patología , Enfermedad Aguda , Biopsia , Diagnóstico Diferencial , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada por Rayos XRESUMEN
The type I melanoma antigen gene (MAGE) proteins CT7 (MAGE-C1) and MAGE-A3 are commonly expressed in multiple myeloma (MM), and their expression correlates with increased plasma cell proliferation and poor clinical outcome. They belong to the cancer-testis antigen (CTAg) group of tumor-associated proteins, some of which elicit spontaneous immune responses in cancer patients. CT7 and MAGE-A3 are promising antigenic targets for therapeutic tumor vaccines in myeloma; therefore, it is critical to determine if they are immunogenic in MM patients. We analyzed cellular and humoral immune responses against CTAgs in patients with plasma cell dyscrasias: MM, monoclonal gammopathy of undetermined significance (MGUS), and Waldenström's macroglobulinemia (WM). Bone marrow lymphocytes from two of four untreated MM patients exhibited CT7-specific cellular immune responses as measured by an autologous cellular immunity assay, the first such immune response to CT7 to be reported in cancer patients. Sera from 24 patients were screened by ELISA for humoral immune responses to CTAgs. Two patients with MM demonstrated positive titers, one for MAGE-A1 and the other for SSX1. These data demonstrate that CTAgs, particularly CT7, are immunogenic in MM patients and merit further exploration as targets of immunological therapy in MM.