• Dong-xiao Lu, Hai-gui Wu, Jia-ying Luo, Ying-xin Wu, Hui-chan Yan, Jia-xu Hong, and Yuan-ming Luo.
• State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Gunagzhou 510120, China.
• Zhonghua Yi Xue Za Zhi. 2013 Sep 24; 93 (36): 2898-900.

ObjectiveTo compare the continuous positive airway pressure (CPAP) of automatic titration with that of manual titration.MethodsA total of 58 patients with obstructive sleep apnea and hypopnea syndrome (OSAHS) diagnosed by overnight polysomnography at sleep center of First Affiliated Hospital, Guangzhou Medical University were studied between December 2010 and December 2012. Manual titration was performed under full polysmnography and auto-titration at home for 3-7 nights.ResultsThere were 52 males and 6 females with an age range of (48 ± 11) years. CPAP pressure titrated by automatic device (10.0 ± 2.2) cm H2O (1 cm H2O = 0.098 kPa) was significantly higher than that titrated manually (7.5 ± 1.5) cm H2O (P = 0.000). Apnea-hyponea index decreased significantly from (54.0 ± 21.0) events/h pre-treatment to (3.8 ± 2.5) events/h post-treatment under manual titration (P < 0.01).ConclusionsCPAP pressure titrated by automatic device is usually higher than that titrated manually. Manual titration should be performed if a patient can not tolerate the CPAP pressure titrated by an automatic device.

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