Mdn | IQR | |
---|---|---|
26.5 | 24.5–41.3 | |
176.5 | 173.6–179.5 | |
81.5 | 79.5–87.3 | |
27.0 | 24.3–29.4 | |
5 | 80 |
INL | No LMA | With LMA | |||
---|---|---|---|---|---|
3.48 | 3.27–3.86 | 3.04 | 2.92–3.48 | 0.046 | |
5.27 | 5.17–6.44 | 5.02 | 3.86–5.34 | 0.046 | |
13.50 | 13.19–13.99 | 11.75 | 11.53–11.90 | 0.028 | |
1.88 | 1.76–2.04 | 2.09 | 1.67–2.25 | 0.917 | |
6.33 | 5.95–6.88 | 5.73 | 5.18–6.05 | 0.075 | |
3.18 | 2.83–3.71 | 2.79 | 2.58–2.96 | 0.028 | |
4.38 | 4.29–4.66 | 3.69 | 3.57–3.85 | 0.028 | |
3.72 | 3.06–3.94 | 4.14 | 3.92–4.72 | 0.028 |
Anatomy dimmension | LMA Unique | |||||
---|---|---|---|---|---|---|
Outer dimension | Inner dimension | |||||
Concordance (%) | Difference (LMA-INL) | Concordance (%) | Difference (LMA-INL) | |||
Mdn (cm) | IQR (cm) | Mdn (cm) | IQR (cm) | |||
0.0 | 5.8 | 5.4–6.0 | 0.0 | 2.9 | 2.6–3.0 | |
0.0 | 3.7 | 2.8–4.3 | 16.7 | 1.0 | −0.1–1.3 | |
0.0 | −4.4 | −4.6–3.9 | 0.0 | −7.2 | −7.5–6.9 | |
0.0 | 7.6 | 6.9–7.7 | 0.0 | 4.6 | 4.1–4.7 | |
0.0 | 2.9 | 2.2–3.6 | 33.3 | −0.1 | −0.5–0.6 | |
0.0 | 5.9 | 5.7–6.4 | 0.0 | 3.1 | 2.8–3.5 | |
0.0 | 4.9 | 4.5–5.2 | 0.0 | 1.9 | 1.7–2.2 | |
0.0 | 2.8 | 2.6–3.1 | 0.0 | 2.1 | 2.1–2.4 |
Landmark | Description |
---|---|
Hyoid mental distance (HMD) | Lower midline border of mandible in jaw occlusion extended to upper border of hyoid bone |
Thyroid mental distance (TMD) | Mentum as per HMD extended to thyroid notch |
Sternal mental distance (SMD) | Mentum as per HMD extended to sternal notch |
Hyoid thyroid distance (HTD) | Upper border of hyoid bone extended to thyroid noth |
Hyoid cricoid cartilage distance (HCD) | Hyroid bone to upper border of cricoid cartilage |
Thyroid height (TH) | Thyroid notch to lower border of cricoid cartilage |
Thyroid cricoid distance (TCD) | Thyroid notch to upper border of cricoid cartilage |
Thyroid width (TW) | Lateral border of upper thyroid cartilage |
Sizing criteria | LMA Unique – dimensions (cm) | ||||
---|---|---|---|---|---|
Size | Masa ciała (kg) | Outer cuff width (OW) | Outer cuff width (OW) | Inner cuff width (IW) | Inner cuff length (IL) |
3 | 30–50 | 5 | 7.5 | 4.5 | 5 |
4 | 50–70 | 6 | 8.5 | 5 | 6 |
5 | 70–100 | 6.5 | 9.5 | 6 | 6.5 |