Association Between Plasma D Dimer in Adult CAP and Severity of Inflammatory Response and Survival

Community-acquired pneumonia (CAP) is a common and potentially life-threatening infection that affects millions of individuals worldwide each year.

D-dimer is a fibrin degradation product that is elevated in many conditions associated with inflammation and coagulation activation, including pneumonia.

This is an observational study including a minimum of 50 patients with CAP

Patients who will be admitted to the Chest department, or coming to the outpatient clinic at Ain-Shams University Hospitals with CAP, and have the following inclusions:

• age ≥18 years
• diagnosis of CAP based on clinical symptoms, laboratory findings, and radiological evidence.
• Did not have any clinical or radiological signs suggesting COVID-19 pneumonia Exclusion criteria Patients with a history of coagulation disorders, cancer, or other chronic diseases, or refusal to participate.

All patients will be subjected to the following: -

• Full medical history, demographics
• Thorough clinical examination.
• laboratory values (including white blood cell count, CRP, and D-dimer), With pre and post sample known precautions (8).
• Radiological findings (CXR).
• Severity of illness (based on the CURB-65 score).

Inclusion criteria

• Patients who will be admitted to the Chest department, or coming to the outpatient clinic at Ain-Shams University Hospitals with CAP, and have the following inclusions:

• age ≥18 years
• diagnosis of CAP based on clinical symptoms, laboratory findings, and radiological evidence.

Exclusion criteria

• Patients with a history of coagulation disorders, cancer, or other chronic diseases, or refusal to participate.
• patients who have any clinical or radiological signs suggesting COVID-19 pneumonia.