Background: Lactate level is known to increase among the majority of patients with toxicity. This study aimed to determine whether lactate level upon admission is higher among patients with ventilator-associated pneumonia (VAP). Objectives: We aimed to determine whether serum lactate level is associated with the increased risk of VAP in intensive care unit (ICU)-admitted patients with toxicity. Methods: This retrospective study was conducted in a training medical poisoning center in Iran, using convenience sampling. A total of 157 poisoned patients, aged ≥ 13 years, who were admitted to the ICU over the past seven months, were included in the study.Subjects were categorized into two groups, based on their VAP diagnosis (VAP-positive and non-VAP) and the outcomes (surviving or non-surviving). The VAP-positive patients were compared with others with regard to the mean level of serum lactate level upon admission. Additionally, non-surviving patients were compared with their surviving counterparts. Results: Overall, 71 (45.2 %) VAS-positive cases were reported, in addition to 36 cases of mortality. Alkaline phosphatase (ALP) was the most common toxic agent (36%), followed by methanol. Significant differences were noted between the groups in terms of Simplified Acute Physiology Score-II (SAPS-II), Glasgow Coma Scale (GCS) score, length of ICU stay, and percentage of ventilation process.The mean levels of lactate at admission were 3.71 ± 3.35 and 4.19 ± 4.09 among VAP-positive and non-VAP patients, respectively; the difference was not statistically significant. Also, non-surviving patients had a longer ICU stay (12.20 days), compared to surviving patients (5.39) (P = 0.008). Moreover, admission lactate level was 7.06 ± 5.29 mmol/L among non-surviving patients and 3.01 ± 2.53 among surviving cases (P < 0.001). Conclusions: Based on the findings, the mortality rate was 22.9% among poisoned patients with an elevated serum lactate level. We can conclude that mortality is associated with toxicants, but not the occurrence of VAP; in fact, VAP scenarios do not elevate serum lactate level.
Background: Platelet count is a readily available biomarker predicting disease severity and risk of mortality in the intensive care units (ICU). This study aims to describe the frequency, to assess the risk factors, and to evaluate the impact of thrombocytopenia on patient outcomes in a Toxicological ICU (TICU).Methods: In this prospective observational Cohort study, we enrolled 184 patients admitted to our TICU from October 1st, 2019, to August 23rd, 2020. Mild/moderate and severe thrombocytopenia were defined as at least one platelet counts less than 150×103/μL and 50×103/μL during the ICU stay, respectively.Results: Of 184 enrolled patients, 45.7% had mild to moderate thrombocytopenia and 5.4% had severe thrombocytopenia. Old age (OR: 1.042, 95%CI: 1.01-1.075, P=0.01), male gender (OR: 4.348, 95%CI: 1.33-14.22, P=0.015), increased international normalized ratio (INR) levels (OR: 3.72, 95%CI: 1.15-112, P=0.028), and administration of some medications including heparin (OR: 3.553, 95%CI: 1.11-11.36, P=0.033), antihypertensive drugs (OR: 2.841, 95%CI: 1.081-7.471, P=0.034), linezolid (OR: 13.46, 95%CI: 4.75-38.13, P<0.001), erythromycin (OR: 19.58, 95%CI: 3.23-118.86, P=0.001), and colistin (OR: 10.29, 95% CI 1.44-73.69, P=0.02) were the risk factors of hospital-acquired thrombocytopenia. The outcomes of patients with normal platelet count were significantly better than those who developed thrombocytopenia (P<0.001).Conclusion: We found that thrombocytopenia could develop in almost 50% of patients admitted to TICU, which is associated with poor prognosis. Additionally, the platelet counts should be closely monitored to administer some medications (heparin, antihypertensive drug, and linezolid), especially in old patients.
Background: Tracheal stenosis is one of the worst complications of endotracheal intubation, but timely diagnosis can change its natural history. Management of these patients places a great burden on the health care system and the well-being of the patients and their families. Therefore, discharged intensive-care-unit (ICU) patients who underwent more than 24 hours of intubation should be actively followed-up 3 months after extubation and screened for post-intubation tracheal stenosis. The present study was aimed at assessing the impact of post-discharge follow-up call interviews on increasing successful screening for post-intubation tracheal stenosis.
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