title: Hypertension in perioperative period.
mesh_terms: D000701:Analgesics, Opioid / Q000009:adverse effects; D000769:Anesthesia, Inhalation / Q000009:adverse effects; D000771:Anesthesia, Intravenous / Q000009:adverse effects; D006801:Humans; D006973:Hypertension / Q000209:etiology*; D007432:Intraoperative Period; D009609:Nitrous Oxide / Q000009:adverse effects; D011183:Postoperative Complications; D012189:Retrospective Studies; D013874:Thiopental / Q000009:adverse effects
chemical_list: D000701:Analgesics, Opioid; D013874:Thiopental; D009609:Nitrous Oxide