Headache Characteristics in Chronic Neck Pain Patients with Loss of Cervical Lordosis: A Cross-Sectional Study Considering Cervicogenic Headache.

BACKGROUND Loss of cervical lordosis and cervicogenic headache have similar tissue abnormalities, including weakness and atrophy in the neck muscles. Cervicogenic headache is mainly unilateral and is perceived in the occipito-temporo-frontal regions. However, it is not clear whether loss of cervical lordosis is a sign of headache with cervical origin.

Two-year survival of severe chronic obstructive pulmonary disease subjects requiring invasive mechanical ventilation and the factors affecting survival.

Objective: To investigate two-year survival rates and the factors affecting survival in patients of severe chronic obstructive pulmonary disease requiring invasive mechanical ventilation.

Methods: The retrospective study was conducted at Yuzuncuy?l University, Van, Turkey, and comprised record of in-patients with moderate to severe chronic obstructive pulmonary disease who required invasive mechanical ventilation in the intensive care unit of the Pulmonary Diseases Department between January 2007 and December 2010. Correlation between survival and parameters such as age, gender, duration of illness, history of smoking, arterial blood gas values, pulmonary artery pressure, left ventricular ejection fraction, body mass index and laboratory findings were investigated.