Analgesic Effect of Intravenous Patient-Controlled Analgesia (IV PCA) Versus Paravertebral Block After Video Assisted Thoracic Surgery (VATS)

A Comparison Between the Analgesic Effect of Intravenous Patient-controlled Analgesia and of Paravertebral Block After Video Assisted Thoracoscopic Surgery

The purpose of this study is to compare the analgesic effect of paravertebral block with that of intravenous patient-controlled analgesia after video assisted thoracic surgery.

Inclusion Criteria:

• patients receiving video assisted thoracic surgery

Exclusion Criteria:

• patients with cardiovascular disease
• patients with neurologic disease
• patients with contraindications to paravertebral block or epidural block
• patients with history of previous VATS
• patients with pain at the expected incision site