Fig. 1
Assessment of the postoperative period in both groups
| Variable | Study group (n = 100) | Control group (n = 100) | Result |
|---|---|---|---|
| Hospitalization duration up to 10 days n (%) | 85 (85.0) | 67 (67.0) | p = 0.003 |
| Hospitalization duration more than 10 days n (%) | (15.0) | (33.0) | |
| Respiratory tract infection n (%) | 0 (0) | 4 (4.0) | p = 0.121 |
| Prolonged mechanical ventilation n(%) | 2 (2.0) | 8 (8.0) | p = 0.052 |
| Number of hours of prolonged mechanical ventilationMe (IQR, min-max); M (SD) | 0 (0; 0–20); 0.25 (2.06) | 0 (0; 0–96); 2.96 (13.33) | p = 0.049 |
| Admission to ICU n (%) | 4 (4.0) | 13 (13.0) | p = 0.022 |
| Deaths n (%) | 3 (3.0) | 5 (5.0) | p = 0.721 |
List of publications devoted to ultrasound-guided recruitment maneuvers during general anesthesia
| Author (year of publication) | Study population | Number of participants (study group/control group) | Employed transducers | Ultrasound- guided recruitment | Detected incidence of atelectasis | Incidence of atelectasis after RM |
|---|---|---|---|---|---|---|
| Cylwik, Buda (2021) | adults | 100/0 | convex, linear | yes | 87% | 16% |
| Park et al. (2021) | adults | 20/20 | convex | yes | 100% | ND |
| Elshalzy et al. (2020) | adults | 20/20 | convex | yes | ND | ND |
| Song et al. (2018) | pediatric | 61/61 | linear | yes | 21% | 13% |
| Song et al. (2016) | pediatric | 20/20 | linear | yes | 50% | 30% |
Clinical characteristics of the study group and control group
| Variable | Study group (n = 100) | Control group (n = 100) | Result |
|---|---|---|---|
| Age M (SD) | 63.90 (11.34) | 64.17 (14.03) | p = 0.881 |
| BMI M (SD) | 28.31 (5.08) | 29.61 (5.75) | p = 0.173 |
| Gender n (%) | |||
| Females Males | 66 (66.0) 34 (34.0) | 50 (50.0) 50 (50.0) | p = 0.022 |
| ASA Score n (%) | |||
| 1 | 1 (1.0) | 4 (4.0) | |
| 2 3 | 27 (27.0) 66 (66.0) | 20 (20.0) 63 (63.0) | p = 0.152 |
| 4 | 6 (6.0) | 13 (13.0) | |
| MRC Score n (%) | |||
| 0 | 49 (49.0) | 48 (57.8) | |
| 1 | 40 (40.0) | 20 (24.1) | p = 0.056 |
| 2 | 11 (11.0) | 15 (18.1) | |
| Coexisting chronic disease n (%) | |||
| Hypertension | 55 (55.0) | 66 (66.0) | p = 0.112 |
| Ischemic heart disease | 13 (13.0) | 17 (17.0) | p = 0.428 |
| COPD | 1 (1.0) | 3 (3.0) | p = 0.621 |
| Asthma | 6 (6.0) | 2 (2.0) | p = 0.279 |
| Diabetes | 24 (24.0) | 18 (18.0) | p = 0.298 |
| Atherosclerosis | 12 (12.0) | 15 (15.0) | p = 0.535 |
| Number of comorbidities n (%) | |||
| 0 | 26 (26.0) | 24 (24.0) | |
| 1 | 26 (26.0) | 35 (35.0) | |
| 2 | 24 (24.0) | 23 (23.0) | p = 0.635 |
| 3 | 19 (19.0) | 13 (13.0) | |
| 4 | 5 (5.0) | 5 (5.0) | |
| Type of surgery n (%) | |||
| Elective Emergency | 90 (90.0) 10 (10.0) | 87 (87.0) 13 (13.0) | p = 0.506 |
| Surgery | duration n (%) | ||
| <2 h | 45 (45.0) | 43 (43.0) | |
| 2–4 h | 44 (44.0) | 40 (40.0) | p = 0.467 |
| >4 h | 11 (11.0) | 17 (17.0) | |