. Author manuscript; available in PMC: 2013 Nov 10.

Published in final edited form as: Ann Saudi Med. 2012 Jul-Aug;32(4):384–390. doi: 10.5144/0256-4947.2012.384

Table 2.

Echocardiographic measurements of the left ventricle in patients with obstructive sleep apnea (OSA) syndrome.

Patients with OSA	AHI 5–14/h	AHI 15–29/h	AHI ≥ 30/h	P

No. of subjects	7	13	20

Thickness and diameters
Left atrium (19–40 mm)^a	37.0 (5.1)	36.2 (3.4)	37.5 (4.1)	.619
Interventricular septum thickness in diastole (6–11 mm)^a	9.8 (2.4)	9.4 (1.3)	11.6 (1.7)	.004
Posterior left ventricular wall thickness in diastole (37–56 mm)^a	8.9 (2.0)	9.9 (1.6)	10.7 (1.7)	.033
Left ventricular end-diastolic diameter (37–56 mm)^a	46.2 (4.7)	46.7 (6.3)	49.5 (4.2)	.278
Left ventricular end-systolic diameter (19–40 mm)^a	28.7 (4.4)	29.5(4.4)	31.2 (3.4)	.383
Left ventricular mass
Left ventricular mass^b	187.6 (66.2)	196.4 (35.2)	260.9 (50.5)	.001
Left ventricular mass index^b	95.8 (28.6)	94.6 (13.2)	121.9 (21.1)	.020

Data are presented as mean (SD) or n. AHI: Apnea-hypopnea index

Normal values; <198 g in females, <294 g in males;

<110 g/m² in females, <134 g/m² in males.