Table 2.

Predicted pressure efforts at the different locations along the pre- and postoperative upper airways (Op: operative, ΔP: pressure effort and has a unit of mm H₂O; Area: cross-sectional area of the airway and has a unit of mm²; Pre: preoperative; Post: postoperative; Lam.: laminar flow; Turb.: turbulent flow).

Case	Op	AHI	0mm			l0mm			20mm			30mm			40mm			50mm
			Area	ΔP (mm H2O)		Area	ΔP (mm H2O)		Area	ΔP (mm H2O)		Area	ΔP (mm H2O)		Area	ΔP (mm H2O)		Area	ΔP (mm H2O)
				Lam.	Turb.		Lam.	Turb.		Lam.	Turb.		Lam.	Turb.		Lam.	Turb.		Lam.	Turb.
1	Pre	22.6	513	0	0	116	−0.3	−1.1	61	−1.7	−3.7	45	−3.9	−8.7	46	−7.5	−8.4	66	−6.0	−6.8
	post	9.7	521	0	0	158	−0.2	−0.5	146	−0.4	−0.6	144	−0.3	−0.7	125	−0.6	−1.0	130	−0.8	−1.5
5	Pre	38.0	515	0	0	88	−1.0	−1.8	77	−3.5	−3.6	183	−2.8	−3.3	146	−2.8	−2.5	166	−2.3	−2.5
	post	8.2	632	0	0	410	0.0	0.0	502	0.0	0.0	490	0.0	0.0	719	0.0	0.0	652	0.0	0.0
6	Pre	17.1	231	0	0	57	−5	−5	4	−1128	−1165	114	−1273	−1283	114	−1275	−1288	14	−1308	−1297
	post	5.4	289	0	0	111	−0.6	−1.0	57	−2.6	−3.7	176	−2.8	−3.5	51	−2.6	−6.7	74	−8.9	−7.8
12	Pre	14.0	366	0	0	45	−1.2	−7.3	105	−6.6	−6.1	151	−5.9	−6.1	171	−5.5	−6.3	298	−5.8	−6.8
	post	0.7	451	0	0	163	0.0	−0.3	337	0.0	−0.2	282	0.0	−0.3	225	0.0	−0.3	43	−1.1	−13.0
13	Pre	50.0	160	0	0	24	−11	−22	20	−35	−38	145	−26	−28	218	−25	−28	175	−24	−28
	post	13.0	403	0	0	137	−0.3	−0.7	91	−1.1	−1.7	191	−1.3	−1.5	178	−0.8	−1.0	242	−0.9	−1.6
18	Pre	40.3	626	0	0	232	0.0	−0.1	119	−0.1	−0.8	76	−1.2	−2.1	176	−1.9	−1.8	259	−1.2	−1.8
	post	6.0	738	0	0	507	0.0	0.0	411	0.0	0.0	529	0.0	0.0	525	0.1	0.0	512	0.1	0.0
19	Pre	48.0	471	0	0	70	−6.0	−5	22	−53	−48	17	−52	−39	9	−273	−252	43	−136	−129
	post	7.0	476	0	0	165	−0.3	−0.5	78	−1.7	−2.4	42	−2.7	−4.0	58	−4.0	−5.4	78	−3.4	−4.6
23	Pre	30.9	186	0	0	106	−0.6	−0.6	102	−0.3	−0.9	207	−0.4	−0.7	213	−0.1	−0.6	196	0.1	−0.6
	post	0.5	346	0	0	280	0.0	0.0	295	0.2	0.0	530	0.2	0.0	490	0.2	0.0	411	0.2	0.0