Clinical Study

Safety and Effectiveness of Endoscopist-Directed Nurse-Administered Sedation during Gastric Endoscopic Submucosal Dissection

Table 1

Clinical characteristics of the patients.

M group ()MP group () value

Age (yr)68 ± 10.266.2 ± 10.00.206
Gender, n (%)0.458
 Male53 (63.9)74 (58.7)
 Female30 (36.1)52 (41.3)
Body mass index (kg/m2)24.6 ± 3.824.9 ± 3.00.619
Smoking history, n (%)0.229
 Nonsmoker63 (75.9)95 (75.4)
 Ex-smoker12 (14.5)11 (8.7)
 Current smoker8 (9.6)20 (15.9)
Alcohol abuse, n (%)11 (13.3)15 (11.9)0.773
Use of antiplatelet agents, n (%)a22 (26.5)22 (17.5)0.117
Regular use of sedatives or psychotrophic drugs, n (%)4 (4.8)4 (3.2)0.544
Midazolam dose, mg5.8 ± 1.95.5 ± 1.60.228
Propofol dose, mg91.5 ± 72.9
Antihypertensive agent administration, n (%)1 (1.2)4 (3.2)0.65
ASA physical status, n (%)0.692
 120 (24.1)37 (29.4)
 243 (51.8)62 (49.2)
 320 (24.1)27 (21.4)

Values are mean ± SD or n (%) of patients. aAntiplatelet agents include aspirin, nonsteroidal anti-inflammatory drugs, and plavix. These medications were discontinued in all patients prior to endoscopic submucosal dissection. SD: standard deviation; M: sedation with midazolam; MP: sedation with midazolam plus intermittent propofol injection; ASA: American Society of Anesthesiologists.