Diagnostic Value of Neutrophil to Lymphocyte Ratio for Assessing Obstructive Sleep Apnea Risk in Surgical Patients.

PURPOSE: Obstructive sleep apnea (OSA) is an important risk factor leading to perioperative complications in surgical patients. Neutrophil-to-lymphocyte ratio (NLR) is an important biomarker of increasing interest in recent years, and is used in the determination of systemic inflammatory response. DESIGN: The aim of this study was to evaluate the risk of OSA and the relationship between OSA risk and NLR in surgical patients. METHODS: The study was conducted in a tertiary care hospital between November 2021 and May 2022. The cross-sectional study included 604 patients who underwent surgery. OSA risk was evaluated with the STOP-Bang questionnaire in the preoperative evaluation in all patients. NLR was calculated as the ratio of neutrophil count to lymphocyte count. FINDINGS: According to the STOP-Bang questionnaire, 62.3% of the patients had a high risk of OSA in the preoperative period. Patients who were male, elderly, obese, had hypertension, diabetes, chronic lung disease, and heart disease and polypharmacy were at greater risk of OSA. Patients at high risk of OSA had significantly higher NLR than patients at low risk of OSA. (2.65 vs 2.92, P.ß=.ß.024). NLR of 2.40 or higher predicted OSA risk with 58.8% sensitivity and 51.0% specificity (AUC.ß=.ß0.561) CONCLUSIONS: Most patients who were to undergo surgery had a high risk of OSA. NLR was higher in patients at high risk of OSA. Although the diagnostic efficacy is not high, NLR can be used to detect high OSA risk because it is a low-cost and easy to obtain biomarker.

The relationship between fear of surgery and affecting factors in surgical patients.

BACKGROUND: This study aimed to explain the fear of surgery in surgical patients, the affecting factors, and their relationship. METHODS: This study was conducted as a descriptive and cross-sectional study. The study population consists of 300 patients undergoing surgical intervention. Data were collected using the "patient information form" and "Surgical Fear Questionnaire." Parametric and nonparametric tests were used to evaluate the data. The relationship between the fear questionnaire and age, number of previous surgeries, and pre-operative pain was evaluated using Spearman correlation analysis. The relationship with emotional stress was evaluated with multiple linear regression analysis. RESULTS: In this study, it was determined that the predictors of the surgical fear level of the patients were age, gender, anesthesia type, and pre-operative pain experience. There was a negative correlation between the age of the patients and the fear of surgery score and a positive correlation between the pre-operative pain severity and the fear of surgery score. It was determined that the factors most associated with pre-operative fear levels were the patients' pre-operative sense of inadequacy (p < 0.001), feeling anxious and unhappy, and confusion about the surgery decision (p < 0.05). CONCLUSION: According to the results of this study, it has been determined that the emotional states and fears of the patients before the surgery have significant effects on the fear of surgery. For this, it is recommended to determine the emotional states and fears of the patients before the surgery and to make appropriate interventions, as it will facilitate compliance with the surgical process.

The relationship between pain severity and sleep quality: Posttube thoracostomy.

BACKGROUND: The presence of a chest tube is a factor significantly associated with pain and pain posttube thoracostomy that negatively affects sleep quality (SQ). AIM: To determine the relationship between the pain severity and SQ of patients who underwent the tube thoracostomy (TT). METHODS: This was a descriptive and cross-sectional survey conducted from May 1, 2018, to December 30, 2018, in the thoracic surgery department of Sivas Cumhuriyet University Hospital in Central Anatolia/Turkey. Data were collected using a questionnaire form, a Numerical Rating Scale to determine pain severity, and the Richard-Campbell Sleep Questionnaire to assess SQ. RESULTS: The study was carried out with 102 patients who underwent the TT. The mean age of the participants were 48.94 years. The mean scores for the scale items indicated that during the procedure and on the first day of post-TT, the pain severity of the patients was very high, their SQ was low. Pain level decreased gradually in the following days, and the SQ increased. There was a positive, strong correlation between the post-TT first day pain and first night SQ (r = 0.380, p = 0.000), second day pain and second night SQ (r = -0.537, p = 0.000), and third day pain and third night SQ (r = -0.507, p = 0.000). CONCLUSION: The results of this study highlight that the pain severity of post-TT significantly affect the quality of the patients' night sleep.