High-resolution plasma metabolomics and thiamine status in critically Ill adult patients.

INTRODUCTION: Thiamine (Vitamin B1) is an essential micronutrient and is classically considered a co-factor in energy metabolism. The association between thiamine status and whole-body metabolism in critical illness has not been studied. OBJECTIVES: To determine association between whole blood thiamine pyrophosphate (TPP) concentrations and plasma metabolites and connected metabolic pathways using high resolution metabolomics (HRM) in critically ill patients. METHODS: Cross-sectional study performed at Erciyes University Hospital, Kayseri, Turkey and Emory University, Atlanta, GA, USA. Participants were critically ill adults with an expected length of intensive care unit stay longer than 48 h and receiving chronic furosemide therapy. A total of 76 participants were included. Mean age was 69 years (range 33-92 years); 65% were female. Blood for TPP and metabolomics was obtained on the day of ICU admission. Whole blood TPP was measured by HPLC and plasma HRM was performed using liquid chromatography/mass spectrometry. Data was analyzed using regression analysis of TPP levels against all plasma metabolomic features in metabolome-wide association studies (MWAS). MWAS using the highest and lowest TPP concentration tertiles was performed as a secondary analysis. RESULTS: Specific metabolic pathways associated with whole blood TPP levels in regression and tertile analysis included pentose phosphate, fructose and mannose, branched chain amino acid, arginine and proline, linoleate, and butanoate pathways. CONCLUSIONS: Plasma HRM revealed that thiamine status, determined by whole blood TPP concentrations, was significantly associated with metabolites and metabolic pathways related to metabolism of energy, carbohydrates, amino acids, lipids, and the gut microbiome in adult critically ill patients.

Skin tears in older patients in intensive care units: A multicentre point prevalence study.

BACKGROUND: With the ageing of the global population, it is predicted that the population of older adult patients in hospitals and intensive care units (ICUs) will increase. Because of health conditions, care practices and ageing-related skin changes, older adult ICU patients are prone to skin integrity problems, including skin tears (STs). AIM: To determine the prevalence of STs and associated factors in older patients hospitalized in ICUs. STUDY DESIGN: The study is a regional, multicentre, point prevalence study conducted in five centres in the five largest cities in terms of population in the Central Anatolia Region of Türkiye. Data were collected simultaneously in each centre on the same day. The list of patients hospitalized in the ICUs on the day of data collection was drawn up, and 200 patients who were 65 years of age or older, were hospitalized in ICUs and agreed to participate in the research were included. The researchers formed an "ST chart" to record patient demographic characteristics, clinical variables and skin assessment. RESULTS: STs were detected in 14.5% of patients in ICUs, with 72.5% of them having stage 1 ST. A significant relationship was found between individuals' average body mass index (BMI) (p = .043), age (p = .014), length of stay in the ICU (p = .004) and having ST. There was also a statistically significant relationship between skin temperature (p = .002), skin turgor (p = .001) and ST. More STs were observed in patients with cold skin and low turgor. The prevalence of ST was higher in individuals with a history of ST. Additionally, there was a statistically significant relationship between consciousness (p = .014), incontinence (p = .006), the Braden score (p = .004), the Itaki fall risk score (p = .006) and ST. CONCLUSIONS: In this multicentre point prevalence study, the prevalence of ST in older patients in ICUs was 14.5%, and many factors associated with ST have been identified. RELEVANCE TO CLINICAL PRACTICE: Given the insufficient information and attention to STs in older adults, the study emphasizes the importance of addressing STs. The impact of STs includes increased treatment costs, length of stay and risk of complications. Therefore, understanding the global extent of STs in ICUs and developing effective interventions for prevention and management are crucial.

Evaluation of Long-Coronavirus Disease 2019 Cases Readmitted to Intensive Care Units Due to Acute Respiratory Failure: Point Prevalence Study.

OBJECTIVE:  Coronavirus disease 2019 (COVID-19) caused morbidity and mortality worldwide. Besides the acute effects, subacute and long-term effects are defined as long-COVID causing morbidity. The intensive care unit (ICU) data of long-COVID-19 cases were evaluated with the participation of 11 centers. MATERIAL AND METHODS:  Study was designed by Turkish Thoracic Society Respiratory Failure and Intensive Care Working Group to evaluate long COVID-19 patients. All patients followed up in the ICU with long-COVID diagnosis were included in point prevelance study. RESULTS:  A total of 41 long COVID-19 patients from 11 centers were included in the study. Half of the patients were male, mean age was 66 ± 14, body mass index was 27 ± 5. Hypertension, diabetes mellitus, lung cancer, malignancy, and heart failure rates were 27%, 51%, 34%, 34%, and 27%, respectively. Eighty percent had received COVID vaccine. Patients had moderate hypoxemic respiratory failure. APACHE II, SOFA score was 18 (14-26), 6 (3-8), respectively. Forty-six percent received invasive mechanical ventilator support, 42% were sepsis, 17% were septic shock. Bilateral (67%), interstitial involvement (37%) were most common in chest x-ray. Fibrosis (27%) was detected in thorax tomography. Seventy-one percent of patients received antibiotherapy (42% carbapenem, 22% linezolid). Sixty-one percent of the patients received corticosteroid treatment. CONCLUSION:  More than half of the patients had pneumonia and the majority of them used broad-spectrum antibiotics. Presence of comorbidities and malignancies, intensive care severity scores, intubation, and sepsis rates were high. Receiving corticosteroid treatment and extensive bilateral radiologic involvement due to COVID-19 might be the reasons for the high re-admission rate for the ICUs.