IS LYMPHOPENIA A PREDICTOR OF MORTALITY IN PATIENTS WITH COVID-19?

In this study, we evaluated the relation between the presence of lymphopenia and the need of intensive care unit (ICU) or mortality. A total of 1670 COVID-19 patients were divided according to the severity of lymphopenia developing at the time of COVID-19 infection. According to the symptoms and need of ICU, the infection was classified as mild or severe. The rates of severe infection, ICU admission, and mortality were evaluated between the groups. Among 1670 patients, 576 (34.4%) patients had severe disease and 1094 (65.6%) patients had a mild form of the disease; 213 (12.7%) patients with severe COVID-19 died. The severe form of COVID-19 was more common in patients with low lymphocyte levels (<500) than in those with normal lymphocytes count (64.7% vs. 5.2%; p<0.001). The odds ratio of lymphopenic patients was 2.4 (1.8-3.0; p=0.001). The risk of severe COVID-19 infection and mortality was 8.9 and 12.4 times higher in patients with low lymphocyte count compared to patients with normal lymphocyte count subsequently. ROC analysis showed that lymphocyte counts lower than 615 lym/mcL had 96.4% sensitivity for severe disease (AUC:0.89 (0.842-0.938); p<0.001). There was a significant negative correlation between lymphocyte count and mortality rate and severe COVID-19 disease (for severe COVID-19 r=-0.590; p<0.001and for mortality r=-0.511; p=0.001). In conclusion, we found a strong correlation between lymphopenia and COVID-19 outcomes. Lymphopenia in patients with COVID-19 was a prognostic factor in the course of the disease. Lymphopenia is an easy and inexpensive prognostic factor that can be used in the management of COVID-19 patients.

Assessment of Risk Factors for Mortality in Patients in Medical Intensive Care Unit of a Tertiary Hospital.

BACKGROUND: Knowing the risk factors for patients in intensive care units (ICUs) facilitates patient's management. The goal of this study was to determine the risk agents that influence our medical ICU mortality. PATIENTS AND METHODS: This 11-month retrospective trial was managed in the medical ICU. In this study, 340 patients who were followed up for at least 24 hours in ICUs were accepted. The clinical data on patients were recorded retrospectively, and the mortality-related factors were analyzed. A regression analysis was also performed to determine the independent risk factors for ICU mortality. RESULTS: The median age was 73 (53-82) years. The death rate was 23.8%. Length of stay (LOS) in ICU was 3 (2-5) days, and APACHE-II (acute physiologic and chronic health evaluation) score was 19 (13-25). The prevalence of chronic diseases was not dissimilar except acute and chronic renal failures among survivors and deceased patients (p >0.05). Acute and chronic renal failures were higher in deceased patients than in survivors and were statistically important [107 (41.3%) vs 47 (58%), p = 0.008] and 38 (14.7%) vs 22 (27.2%), p = 0.01], respectively. In the binary logistic regression analysis, age, APACHE II score, need for invasive mechanical ventilation (IMV), decreased serum albumin levels, and increased creatinine levels were established to be independent risk factors for death [(OR (odds ratio): 1.045 (1.009-1.081), p = 0.013, OR: 1.076 (21.008-1.150), p = 0.029, OR: 19.655 (6.337-60.963), p = 0.001), OR: 2.673 (1.191-6.024), p = 0.017, OR: 1.422 (1.106-1.831), p = 0.006)], respectively. CONCLUSION: The most significant risk agents of death were determined through high APACHE II score, decreased serum albumin levels, and increased creatinine levels. HOW TO CITE THIS ARTICLE: Kalin BS, Özçaylak S, Solmaz I, Kiliç J. Assessment of Risk Factors for Mortality in Patients in Medical Intensive Care Unit of a Tertiary Hospital. Indian J Crit Care Med 2022;26(1):49-52.

Assessment of antibiotic resistance of infectious agents in patients with pneumonia in tertiary critical care unit and effect on clinical outcomes.

OBJECTIVE: The aim of this study was to determine the prevalence of the causative agents of multi-drug resistant bacteria in pneumonia and also evaluate their mortality rates in the intensive care unit (ICU). METHODS: This study included all the cases of hospital-acquired pneumonia (HAP) and community-acquired pneumonia (CAP) in the ICU between the period of January 2018 and December 2019. RESULTS: Seventy-four patients in pneumonia were included. Mortality rate was 45.9%. In patients with HAP had higher length of stay days in hospital and ICU, the use of sedative agents, sepsis rate and mortality rate as compared in patients with CAP (for all P < .05). Microorganism was identified in 27 (36.6%) of the patients. Respiratory samples were positive in 25.4% of patients with CAP and 60.8% of patients with HAP. Acinetobacter baumannii and Klebsiella pneumoniae were the most frequent aetiologic agents (40.7% and 22.2%, respectively). Acinetobacter baumannii was not susceptible to the third generation cephalosporin, piperacillin-tazobactam, carbapenem, fluoroquinolone and trimethoprim/sulfamethoxazole. Amongst gram-positive bacteria, the most common isolate was Staphylococcus aureus. The frequency of methicillin-resistant Staphylococcus aureus was 75% but these isolates were susceptible to vancomycin and tigecycline. CONCLUSION: The predominance of gram-negative agents was observed in pneumonia patients and because of the high resistance to antibiotics, treatment strategies need to be reconsidered in order to improve the poor prognosis.

Risk factors affecting ICU admission in COVID-19 patients; Could air temperature be an effective factor?

AIM: As the COVID-19 pandemic has been spreading rapidly all over the world, there are plenty of ongoing works to shed on light to unknown factors related to disease. One of the factors questioned is also to be the factors affecting the disease course. In this study, our aim is to determine the factors that affect the course of the disease in the hospitalised patients because of COVID-19 infection and to reveal whether the seasonal change has an effect on the disease course. METHODS: Our study was conducted on 1950 PCR test positive patients who were hospitalised for COVID-19 disease between March 16 and July 15. RESULTS: As the seasonal temperature increases, decrease in WBC, PLT and albumin levels and increase in LDH and AST levels were observed. Risk of need for ICU has been found statistically significant (P < .05) with the increase in the age, LDH levels and CRP levels and with the decrease in the Ca and Albumin levels. CONCLUSIONS: It is predicted with these results that, seasonal change might have affects on the clinical course of the disease, although it has no affect on the spread of the disease. And it might beneficial to check biochemical parameters such as LDH, CRP, Ca and Albumin to predict the course of the disease.

Does it make difference to measure diaphragm function with M mode (MM) or B mode (BM)?

Diaphragm dysfunction occurs in mechanically ventilated subjects. Recent literature suggests that diaphragm thickening fraction (DTF) measured by ultrasound can be useful to predict weaning outcome. However, there is no standardized approach in the measurement of diaphragm thickness (DT) and limited data exists comparing different measurement techniques of diaphragm thickness (M mode-MM or B mode-BM). The goal of this study was to compare MM with BM in the measurements of DT and excursion in the ICU subjects. DT measurements were obtained from the right diaphragm during tidal and maximal inspiratory breathing. Three measurements of the DT were taken both in MM and BM and their mean values were calculated. DT was measured during inspiration and expiration and DTF was calculated. Excursion of diaphragm was also measured with MM and BM during tidal and maximal inspiratory breathing. Bias and agreement between the two measurement methods were evaluated with Bland and Altman test. Sixty-two subjects were enrolled in the study. While 25 (40%) subjects were receiving invasive mechanical ventilation, 14 (23%) subjects ventilated noninvasively. There were no significant difference between the measurement results of MM and BM. BM and MM tidal diaphragm measurements during the inspiratory (0.3 ± 0.08 and 0.31 ± 0.08 cm; P = 0.022), expiratory (0.24 ± 0.07 and 0.24 ± 0.07 cm; P = 0.315) phases and tidal DTF were (27 ± 16 and 31 ± 14%, P = 0.089) respectively. Results of our study suggests that except tidal inspiratory diaphragm thickness, all thickness and excursion measurements with MM and BM are very compatible with each other. Further studies are necessarry to confirm our results and to standardize the measurements of diaphragm.

The management of hyperleukocytosis in an adult patient with acute lymphoblastic leukemia and ataxia-telangiectasia.

Ataxia-telangiectasia (AT) is a hereditary disorder characterized by progressive neurological dysfunction, oculocutaneous telangiectasia, immunodeficiency, cancer susceptibility, and radiation sensitivity. Pediatric patients may develop acute lymphoblastic leukemia (ALL). However development of ALL in an adult patient with AT is a rare occurrence. Here we report such a patient who presented with hyperleukocytosis and were treated with leukapheresis. A 25years old male patient, who were diagnosed with AT and mental retardation, was admitted to the emergency department due to fatigue, nausea and headache. On admission he had a moderate general condition and was fully cooperated. His white blood cell (WBC) count were 466×10(9)/l. Blastic cells were observed in peripheral blood smear. Flow cytometry (FC) of peripheral blood showed T-ALL. Two sessions of large volume leukapheresis was performed. Symptoms due to hyperleukocytosis markedly improved after leukapheresis. Patients with AT should be closely monitored due to risk of malignancy. Leukapheresis may improve the prognosis of high risk ALL patients presenting with hyperleukocytosis.