Correlation between the warning symptoms and prognosis of cardiac arrest.

Background: A low survival rate in patients with cardiac arrest is associated with failure to recognize the condition in its initial stage. Therefore, recognizing the warning symptoms of cardiac arrest in the early stage may play an important role in survival.

Aim: To investigate the warning symptoms of cardiac arrest and to determine the correlation between the symptoms and outcomes.

[Effect of 1-tetrahydropalmatine on spontaneous electric discharge induced by chronic dorsal root ganglion neurons compression in rats].

Objective: To study the effect of 1-tetrahydropalmatine (1-THP) on the spontaneous electric discharge (SED) induced by chronic dorsal root ganglion neurons compression.

Methods: Using single fiber recording method, the SED of 84 neurons class A induced by compression were recorded. The effect of 1-THP on the SEDs and its relation with concentration were observed.