NLR and PLR Levels Following PENG Block in Hip Arthroplasty

Pericapsular Nerve Group Block Mitigates Surgical Stress and Enhances Analgesia in Total Hip Arthroplasty: A Randomized Controlled Trial

Effect of PENG block on NLR and PLR following hip arthroplasty

The NLR is a sensitive indicator of inflammation confirmed in numerous studies and has a predictive and prognostic value. NLR is a cheap, simple, fast-acting, readily available stress and inflammation parameter with high sensitivity and low specificity. Dynamic changes in the NLR precede the clinical state by several hours and may alert clinicians to the ongoing pathological process early. NLR is a new promising marker of cellular immune activation, an important indicator of stress and systemic inflammation. It opens a new dimension for clinical medicine, enabling a better understanding of the biology of inflammation, the linkage and antagonism between innate and adaptive immunity, and their clinical consequences for health and disease.

NLR is affected not only by surgical trauma but also by the method of anesthesia. In recent years, the influence of regional anesthesiology on reducing the inflammatory response after surgical procedures has been emphasized. However, there have been very few studies evaluating the effect of various methods of anesthesia on the NLR.

Inclusion Criteria:

• Patients with ASA classification I-III
• Aged 60-100 years
• Who will be scheduled for hip arthroplasty under spinal anesthesia

Exclusion Criteria:

• Patients who have a history of bleeding diathesis
• Take anticoagulant therapy
• History of chronic pain before surgery
• Multiple trauma
• patients unable to assess their pain (dementia)
• patients operated under general anesthesia
• patients having an infection in the region of the procedure
• the patient who does not accept the procedure