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Fig. 2 | BMC Anesthesiology

Fig. 2

From: Effect of general anesthesia with thoracic paravertebral block on postoperative delirium in elderly patients undergoing thoracoscopic lobectomy: a randomized-controlled trial

Fig. 2

Flowchart of patient enrollment and randomization. Patients in Group PBA underwent postoperative paravertebral block analgesia; patients in Group PIA underwent postoperative intravenous analgesia. PIA, patient-controlled intravenous analgesia; PBA, patient-controlled paravertebral-block analgesia.

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BMC Anesthesiology

ISSN: 1471-2253

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