Regional Anesthesia in the Patient Receiving Antithrombotic or Thrombolytic therapy

-        Percentage of cases of neuraxial hematoma reported due to neuraxial anesthesia in patients treated with the initial recommended dose-ranging:

Numerator: Number of cases of neuraxial hematoma reported

      Denominator: denominator: total number of the studied cases)

-        Incidence of spinal hematoma reported in patients undergoing continuous neuraxial or deep peripheral block:

      Numerator: Number of cases of spinal hematoma reported

      Denominator: total number of patients undergoing continuous neuraxial or deep peripheral block

-        Incidence of spinal hematoma reported at the time of neuraxial catheter removal:

             Numerator: Number of cases of spinal hematoma reported at time of catheter removal

             Denominator: total number of patients undergoing continuous neuraxial block

-        Relation of the time of catheter removal to the incidence of spinal hematoma.