Furosemide-related thiamine deficiency in hospitalized hypervolemic patients with renal failure and heart failure

Background: We aimed to describe the thiamine status in hospitalized hypervolemic heart failure (HF) and/or renal failure (RF) patients treated with furosemide and to investigate whether there was a difference in furosemide-related thiamine deficiency between patients with RF and HF. Methods: Patients who were diagnosed as hypervolemia and treated with intravenous furosemide (at least 40 mg/day) were included in this prospective observational study. Whole blood thiamine concentrations were measured 3 times during hospital follow-up of patients. Results: We evaluated 61 hospitalized hypervolemic patients, of which 22 (36%) were men and 39 (64%) were women, with a mean age of 69.00 ± 10.39 (45–90) years. The baseline and post–hospital admission days 2 and 4 mean thiamine levels were 51.71 ± 20.66 ng/ml, 47.64 ± 15.43 ng/ml and 43.78 ± 16.20 ng/ml, respectively. Thiamine levels of the hypervolemic patients decreased significantly during the hospital stay while furosemide treatment was continuing (p = 0.029). There was a significant decrease in thiamine levels in patients who had HF (p = 0.026) and also, thiamine was significantly lower in HF patients who had previously used oral furosemide before hospitalization. However, these findings were not present in patients with RF. Conclusions: Thiamine substantially decreases in most hypervolemic patients receiving intravenous furosemide treatment during the hospital stay. Thiamine levels were significantly decreased with furosemide treatment in especially HF patients, but the decrease in thiamine levels did not detected at the same rate in RF patients. Diuretic-induced thiamine loss may be less likely in RF patients, probably due to a reduction in excretion. Resumen: Antecedentes: Nos propusimos describir el estado de la tiamina en pacientes hospitalizados con insuficiencia cardíaca (IC) y/o insuficiencia renal (IR) hipervolémica tratados con furosemida, e investigar si había una diferencia en la deficiencia de tiamina relacionada con la furosemida entre los pacientes con IR y con IC. Métodos: En este estudio observacional prospectivo se incluyeron pacientes con diagnóstico de hipervolemia y tratados con furosemida intravenosa (al menos 40 mg/día). Se midieron las concentraciones de tiamina en sangre total 3 veces durante el seguimiento hospitalario de los pacientes. Resultados: Se evaluaron 61 pacientes hipervolémicos hospitalizados, de los cuales 22 (36%) eran hombres y 39 (64%) eran mujeres, con una edad media de 69,00±10,39 (45-90) años. Los niveles medios de tiamina en la línea de base y tras el ingreso hospitalario en los días 2 y 4 fueron de 51,71±20,66 ng/ml, 47,64±15,43 ng/ml y 43,78±16,20 ng/ml, respectivamente. Los niveles de tiamina de los pacientes hipervolémicos hipervolemia disminuyeron significativamente durante la estancia en el hospital mientras se mantenía el tratamiento con furosemida furosemida (p = 0,029). Hubo una disminución significativa de los niveles de tiamina en los pacientes que tenían IC (p = 0,026) y también, la tiamina fue significativamente menor en los pacientes con IC que habían habían utilizado previamente furosemida oral antes de la hospitalización. Sin embargo, estos hallazgos no se presentes en los pacientes con IC. Conclusiones: La tiamina disminuye sustancialmente en la mayoría de los pacientes hipervolémicos que reciben tratamiento con furosemida intravenosa durante la estancia hospitalaria. Los niveles de tiamina se redujeron significativamente con el tratamiento con furosemida, especialmente en los pacientes con IC, pero la disminución de los niveles de tiamina no se detectó al mismo ritmo en los pacientes con IC. La pérdida de tiamina inducida por los diuréticos inducida por los diuréticos puede ser menos probable en los pacientes con insuficiencia cardiaca, probablemente debido a una reducción de la excreción

Clinical Outcomes and Independent Risk Factors for 90-Day Mortality in Critically Ill Patients with Respiratory Failure Infected with SARS-CoV-2: A Multicenter Study in Turkish Intensive Care Units

Background: There are limited data on the long-term outcomes of COVID-19 from different parts of the world. Aims: To determine risk factors of 90-day mortality in critically ill patients in Turkish intensive care units (ICUs), with respiratory failure. Study design: Retrospective, observational cohort. Methods: Patients with laboratory-confirmed COVID-19 and who had been followed up in the ICUs with respiratory failure for more than 24 hours were included in the study. Their demographics, clinical characteristics, laboratory variables, treatment protocols, and survival data were recorded. Results: A total of 421 patients were included. The median age was 67 (IQR: 57-76) years, and 251 patients (59.6%) were men. The 90-day mortality rate was 55.1%. The factors independently associated with 90-day mortality were invasive mechanical ventilation (IMV) (HR 4.09 [95% CI: [2.20-7.63], P2 mmol/L (2.78 [1.93-4.01], P= 60 years (2.45 [1.48-4.06)], P= 600 mL/day (1.68 [1.21-2.34], P=.002), PaO2/FiO(2) ratio of = 1 (1.42 [1.00-2.02], P=.050). Conclusion: Long-term mortality was high in critically ill patients with COVID-19 hospitalized in intensive care units in Turkey. Invasive mechanical ventilation, lactate level, age, cardiac arrhythmia, vasopressor therapy, positive fluid balance, severe hypoxemia and ECOG score were the independent risk factors for 90-day mortality.WOS:0007008536000072-s2.0-85115428262PubMed: 3455841

Nutritional Risk, Micronutrient Status and Clinical Outcomes: A Prospective Observational Study in an Infectious Disease Clinic

Malnutrition has been associated with increased morbidity and mortality. The objective of this study was to determine the nutritional status and micronutrient levels of hospitalized patients in an infectious disease clinic and investigate their association with adverse clinical outcomes. The nutritional status of the study participants was assessed using the Nutritional Risk Screening 2002 (NRS 2002) and micronutrient levels and routine biochemical parameters were tested within the first 24 h of the patient’s admission. The incidence of zinc, selenium, thiamine, vitamin B6, vitamin B12 deficiency were 66.7% (n = 40), 46.6% (n = 29), 39.7% (n = 27), 35.3% (n = 24), 14.1% (n = 9), respectively. Selenium levels were significantly higher in patients with urinary tract infections, but lower in soft tissue infections. Copper levels were significantly higher in patients with soft tissue infections. In the Cox regression models, lower albumin, higher serum lactate dehydrogenase levels and higher NRS-2002 scores were associated with increased death. Thiamine, selenium, zinc and vitamin B6 deficiencies but not chromium deficiencies are common in infectious disease clinics. New associations were found between micronutrient levels and infection type and their adverse clinical outcomes. Hypoalbuminemia and a high NRS-2002 score had the greatest accuracy in predicting death, systemic inflammatory response syndrome and sepsis on admission

Outcomes of High-Dose Vitamin C Therapy on Patients Diagnosed with COVID-19 Associated ARDS in Intensive Care Units: Multi-Center Retrospective Study

Background and Aim: The new type of Severe Acute Respiratory Syndrome Coronavirus 2 (Coronavirus 2019-COVID-19) infection is the largest pandemic in the last decade. Acute respiratory distress syndrome is the complication with the highest mortality rate of this infection and there is no adequate treatment with proven efficacy to reduce mortality. This multi-center, retrospective study aimed to determine the effect of high-dose vitamin C on survival and other endpoints in invasively ventilated ARDS patients.Methods: This multi-center, observational retrospective cohort study was performed at five ICU centers between March 2020 and July 2020. Patients with ARDS due to COVID-19 who required IMV were included. High-dose vitamin C group was defined as patients who were treated with vitamin C over 200 mg/kg for four days. Patients who were not given vitamin C treatment were defined as the control group by using propensity score match analysis, as well. The groups were compared about the effects of high-dose vitamin C treatment on ICU mortality.Result: A total of 86 patients with a mean age of 67.85 +/- 10.38 were included in the study. 72.1% of the patients were male. Forty-two (49%) patients were in the high dose vitamin C group, and 44 (51%) were in the control group. The mean PaO2/FiO2 at the time of admission to the ICU was 128.27 +/- 58.69 mmHg (133.63 +/- 56.51 mmHg in the control group, 122.36 +/- 61.18 mmHg in the study group, p=0.389). The mortality rate of high dose vitamin C group was lower than the control group (73.8% vs. 90.9%, p = 0.037,respectively).Conclusion: As an adjunctive therapy in invasively ventilated patients with COVID-19-associated ARDS, high doses of vitamin C may reduce mortality and development of organ damage. Prospective, randomized controlled studies with larger numbers of patients are needed to confirm these findings

Nutritional practices in medical intensive care units: Multicenter, one-day point prevalence study Pratiques nutritionnelles dans les unités de soins intensifs médicaux : étude de prévalence ponctuelle multicentrique sur une journée

Background/Aim: Nutritional planning is an important aspect of Intensive Care Unit (ICU) care. The present study aimed to evaluate the nutritional practices adopted in medical ICUs in Turkiye and to investigate their compliance with current international guidelines. Methods: This multicenter, cross-sectional study was performed on a predetermined study date. Centers were required to fill three groups of questionnaires: One on ICU characteristics and facilities, one on patients included, and one on outcomes of patients. Forms on patients had questions on demographics and their nutritional status. Results: A total of 12 sites participated and 132 patients were recorded in the study and 109 patients were included in analyses. The median age was 72 [57–83] years and 55 (50%) of them was female. The median APACHE II score was 23 [18–29], median SOFA score was 6 [4–9] and median BMI was 25.32 [21.22–29.38]. More than 50% of patients were fed enterally; for most, it was started within the first 24 hours of admission. On the study day, the median energy intake of the patients during the last 24 hours was 21.62 [15.9–27.3] kcal/kg and the median amount of protein intake was 1.02 [0.7–1.3] g/kg, representing 83.1% and 78.9% of the targets, respectively. A total of 64 (58.7%) patients were alive on the 28th day of the study, of them 23 (21.1% of all patients) were still in the ICU. Conclusion: Nutrition therapy in medical ICUs was initiated early after ICU admission, the enteral route was preferred and target calories were calculated using weight-based formulas. These results suggest that multi-dimensional planning of critical care management of patients by intensivists may provide better nutritional care for the critically ill

ESPEN micronutrient guideline

BackgroundTrace elements and vitamins, named together micronutrients (MNs), are essential for human metabolism. Recent research has shown the importance of MNs in common pathologies, with significant deficiencies impacting the outcome.ObjectiveThis guideline aims to provide information for daily clinical nutrition practice regarding assessment of MN status, monitoring, and prescription. It proposes a consensus terminology, since many words are used imprecisely, resulting in confusion. This is particularly true for the words "deficiency", "repletion", "complement", and "supplement".MethodsThe expert group attempted to apply the 2015 standard operating procedures (SOP) for ESPEN which focuses on disease. However, this approach could not be applied due to the multiple diseases requiring clinical nutrition resulting in one text for each MN, rather than for diseases. An extensive search of the literature was conducted in the databases Medline, PubMed, Cochrane, Google Scholar, and CINAHL. The search focused on physiological data, historical evidence (published before PubMed release in 1996), and observational and/or randomized trials. For each MN, the main functions, optimal analytical methods, impact of inflammation, potential toxicity, and provision during enteral or parenteral nutrition were addressed. The SOP wording was applied for strength of recommendations.ResultsThere was a limited number of interventional trials, preventing meta-analysis and leading to a low level of evidence. The recommendations underwent a consensus process, which resulted in a percentage of agreement (%): strong consensus required of >90% of votes. Altogether the guideline proposes sets of recommendations for 26 MNs, resulting in 170 single recommendations. Critical MNs were identified with deficiencies being present in numerous acute and chronic diseases. Monitoring and management strategies are proposed.ConclusionThis guideline should enable addressing suboptimal and deficient status of a bundle of MNs in at-risk diseases. In particular, it offers practical advice on MN provision and monitoring during nutritional support

Management of acute mesenteric ischaemia: Results of a worldwide survey

© 2023 The AuthorsBackground: Acute mesenteric ischaemia (AMI) is a condition with high mortality. This survey assesses current attitudes and practices to manage AMI worldwide. Methods: A questionnaire survey about the practices of diagnosing and managing AMI, endorsed by several specialist societies, was sent to different medical specialists and hospitals worldwide. Data from individual health care professionals and from medical teams were collected. Results: We collected 493 individual forms from 71 countries and 94 team forms from 34 countries. Almost half of respondents were surgeons, and most of the responding teams (70%) were led by surgeons. Most of the respondents indicated that diagnosis of AMI is often delayed but rarely missed. Emergency revascularisation is often considered for patients with AMI but rarely in cases of transmural ischaemia (intestinal infarction). Responses from team hospitals with a dedicated special unit (14 team forms) indicated more aggressive revascularisation. Abdominopelvic CT-scan with intravenous contrast was suggested as the most useful diagnostic test, indicated by approximately 90% of respondents. Medical history and risk factors were thought to be more important in diagnosis of AMI without transmural ischaemia, whereas for intestinal infarction, plasma lactate concentrations and surgical exploration were considered more useful. In elderly patients, a palliative approach is often chosen over extensive bowel resection. There was a large variability in anticoagulant treatment, as well as in timing of surgery to restore bowel continuity. Conclusions: Delayed diagnosis of AMI is common despite wide availability of an adequate imaging modality, i.e. CT-scan. Large variability in treatment approaches exists, indicating the need for updated guidelines. Increased awareness and knowledge of AMI may improve current practice until more robust evidence becomes available. Adherence to the existing guidelines may help in improving differences in treatment and outcomes

Epidemiology and outcomes of hospital-acquired bloodstream infections in intensive care unit patients: the EUROBACT-2 international cohort study

Purpose In the critically ill, hospital-acquired bloodstream infections (HA-BSI) are associated with significant mortality. Granular data are required for optimizing management, and developing guidelines and clinical trials. Methods We carried out a prospective international cohort study of adult patients (≥ 18 years of age) with HA-BSI treated in intensive care units (ICUs) between June 2019 and February 2021. Results 2600 patients from 333 ICUs in 52 countries were included. 78% HA-BSI were ICU-acquired. Median Sequential Organ Failure Assessment (SOFA) score was 8 [IQR 5; 11] at HA-BSI diagnosis. Most frequent sources of infection included pneumonia (26.7%) and intravascular catheters (26.4%). Most frequent pathogens were Gram-negative bacteria (59.0%), predominantly Klebsiella spp. (27.9%), Acinetobacter spp. (20.3%), Escherichia coli (15.8%), and Pseudomonas spp. (14.3%). Carbapenem resistance was present in 37.8%, 84.6%, 7.4%, and 33.2%, respectively. Difficult-to-treat resistance (DTR) was present in 23.5% and pan-drug resistance in 1.5%. Antimicrobial therapy was deemed adequate within 24 h for 51.5%. Antimicrobial resistance was associated with longer delays to adequate antimicrobial therapy. Source control was needed in 52.5% but not achieved in 18.2%. Mortality was 37.1%, and only 16.1% had been discharged alive from hospital by day-28. Conclusions HA-BSI was frequently caused by Gram-negative, carbapenem-resistant and DTR pathogens. Antimicrobial resistance led to delays in adequate antimicrobial therapy. Mortality was high, and at day-28 only a minority of the patients were discharged alive from the hospital. Prevention of antimicrobial resistance and focusing on adequate antimicrobial therapy and source control are important to optimize patient management and outcomes