The Changes of CD4+T Lymphocyte Subsets in Septic Patients

The Role of CD4+T Lymphocyte Subsets in Cell Immunity in Patients With Sepsis

The purpose of this study is to explore the value of CD4+T lymphocyte subsets in cell immunity in the patients with sepsis.There are immunoparalysis in septic patients,the important player is the change of CD4+T lymphocyte,this immunoparalysis state contribute to the illness progress and outcome. Comprehend the change regularity of septic patients' cell immunity can guide fiter and correcter treatment.

Inclusion Criteria:

• Male and female aged 18 years old and over;
• Fulfilled at least two criteria of systemic inflammatory response syndrome (a) core temperature higher than 38 °C or lower than 36 °C (b)respiratory rate above 20/min, or PCO2 below 32 mmHg (c) pulse rate above 90/min, and (d) white blood cell count greater than 12,000/μl or lower than < 4,000/μl or less than 10% of bands.
• Clinically suspected infection;

Exclusion Criteria:

• were under 18 years of age;
• were refused by the patients or his/her familiality;
• were suffering from acquired immunodeficiency syndrome,virlhepatitis,autoimmune diseases and hematology;
• use medicine which can affect immune system,such as Glucocorticoid and Immunosuppressant
• died within 24h after being taken into the ICU, or refused to get involved in the study, or gave up treatment during the period of observation