Turkay Akbas

The endocrinologic changes in critically ill chronic obstructive pulmonary disease patients.

ABSTRACT Background: Alterations in the neuroendocrine system occur during critical illness. Chronic obstructive pulmonary disease (COPD) itself causes hormonal changes. The aim of this study was to determine neu roendocrine hormones of COPD patients with acute respiratory failure and to investigate the relationship between hormonal changes, mortality, and morbidity.Methods: We enrolled 21 patients (13 F/8 M) with COPD exacerbation requiring artificial airway support. Blood samples were collected on admission to the ICU, and on the day of hospital discharge. Eighteen healthy people were included as controls. Results: Female patients had lower luteinizing hormone (LH), follicle stimulating hormone (FSH), and free triiodothyronine (fT3), and higher prolactin (PRL) levels than controls on admission to the ICU (FSH: 70.3 vs. 29.3 mlU/mL; LH: 26.6 vs. 6.8 mlU/mL; fT3: 2.9 vs. 2.0 pg/mL; PRL: 12.4 vs. 21.3 ng/mL). Male patients had low testosterone and TSH and high PRL but only changes in TSH and PRL reached statistical significance (testosterone: 3.5 vs. 1.5 ng/mL, TSH: 1.1 vs. 0.5 ulU/mL, PRL: 9.7 vs. 14.2 ng/mL). Female patients had lower fT3 than males (fT3female: 2.7 vs. fT3male: 2.0 pg/mL). On follow-up, significantly elevated FSH and fT3 and decreased estradiol concentrations were documented among recovered women (FSH: 28.4 vs. 46.6 mlU/mL, fT3,: 2.0 vs. 2.6 pg/mL, E2: 27.7 vs. 19.0 pg/mL). Patients had high C-reactive protein levels and acute physiologic and chronic health evaluation II scores. Mortality rate was 9.5% and a negative correlation between E2 and duration of noninvasive mechanical ventilation and length of hospital stay was found in male patients. Conclusion: Men and women with acute respiratory failure in the presence of COPD develop significant changes in the neuroendocrine axis. Hormonal suppression vanishes with disease improvement.

Evaluation of Sepsis/Systemic Inflammatory Response Syndrome, Acute Kidney Injury, and RIFLE Criteria in Two Tertiary Hospital Intensive Care Units in Turkey

Sepsis is a common cause of acute renal failure in intensive care units (ICU) with mortality rates as high as 60%. In this study, the clinical and laboratory predictors of acute kidney injury (AKI) in critically ill Turkish patients with sepsis/systemic inflammatory response syndrome were identified. We studied 139 (67 females/72 males) patients admitted to our ICUs with sepsis/systemic inflammatory response syndrome without renal failure. The clinical and laboratory parameters and treatments were recorded. Patients were classified as those without AKI (n = 60; 43.20%) and those with AKI (n = 79; 56.80%) based on the RIFLE (Risk, Injury, Failure, Loss, End-stage renal disease) criteria. Those with AKI were further classified as: risk in 27 (19%), injury in 25 (17.9%), failure in 25 (17.9%), and loss in 2 (1.4%). We found that the mortality rate increased with the severity of renal involvement: 56% in risk, 68% in injury, 72% in failure, and 100% in loss categories. Patients with AKI had a more positive fluid balance, higher central venous pressure, more vasopressor use, and lower systolic blood pressure. In multivariate analysis, the sequential organ failure assessment score, blood pressure, serum creatinine, and fluid balance were risk factors for the development of AKI. In this population, the incidence of AKI was higher and contrary to previous knowledge. A positive fluid balance also carries a risk for AKI and mortality in septic ICU patients. The RIFLE criteria were found to be applicable to our ICU population.

Cardiac Calcification Following Severe Sepsis: A Case Report and Review of the Literature

There are two types of myocardial calcification: metastatic calcification that is encountered in chronic renal disease patients and dystrophic calcification which develops in injured myocardium. Myocardial infarction, trauma, surgery and myocarditis are the most commonly faced reasons for dystrophic calcification. Here we present a rare case of a patient in whom myocardial calcification was diagnosed after severe sepsis.

A PROSPECTIVE STUDY: INFLAMMATION, INFECTION AND COMORBIDITY IN PATIENTS ON LONG-TERM DIALYSIS

BACKGROUND The goal of this study was to identify inflammatory and infectious markers and their roles in mortality. METHODS We enrolled 111 patients on haemodialysis (HD) and collected data at three time points (baseline, 33 and 76 months). RESULTS Rates of Chlamydophila pneumoniae IgG, CRP ≥3 mg/l, ESR >50 mm/hour and fibrinogen >4 g/l were, respectively, 63.1%, 60.4%, 48.6% and 42.3%. Mortality was 21.6% and 43.2% at 33 and 76 months where 58.3% of all deaths were cardiocerebrovascular (CCV) related. Non-survivors were older than survivors. Univariate analysis showed diabetes mellitus (DM) and cerebrovascular accident (CVA) as important for the 33-month all-cause mortality, and CRPlog , fibrinogen, ESR >50 mm/hour, cardiovascular disease (CVD) and DM for the 76-month all-cause mortality. CVA was meaningful for the 33-month CCV mortality, and CVD, DM and ESR >50 mm/hour for the 76-month CCV mortality. Kaplan-Meier revealed poorer survival for patients with ESR >50 mm/hour at 76 months. Cox regression showed CVD, CVA and age as mortality predictors. CONCLUSION Age, CVD and CVA are predictors for mortality in patients on HD patients, but the presence of C. pneumoniae IgG and inflammation are not.