Table 5.2.
Surveillance of Known Lower Extremity PAD
| Indication | Appropriate Use Score (1–9) | |||
|---|---|---|---|---|
| New or Worsening Symptoms | ||||
| 115. | • Normal baseline study | A (7) | ||
| 116. | • Abnormal baseline ABI (ie, ABI ≤0.90) | A (8) | ||
| No Change in Symptom Status (No revascularization) | ||||
| Asymptomatic or Stable Symptoms After Baseline Study, Surveillance Frequency During First Year | At 3 to 5 months | At 6 to 8 months | At 9 to 12 months | |
|
| ||||
| 117. | • Normal baseline ABI (no stenosis) | I (1) | I (1) | I (1) |
| 118. | • Mild or moderate disease (eg, ABI >0.4) | I (2) | I (2) | U (4) |
| 119. | • Severe (eg, ABI <0.4) | I (3) | U (5) | U (5) |
| Asymptomatic or Stable Symptoms After Baseline Study, Surveillance Frequency After First Year | Every 6 months | Every 12 months | Every 24 months or greater | |
|
| ||||
| 120. | • Normal baseline ABI (no stenosis) | I (1) | I (1) | I (2) |
| 121. | • Mild or moderate disease (eg, ABI >0.4) | I (2) | I (2) | U (4) |
| 122. | • Severe (eg, ABI <0.4) | U (4) | U (4) | I (3) |
A = appropriate; ABI = ankle-brachial index; I = inappropriate; PAD = peripheral artery disease; U = uncertain.