[Impact of attack frequency and therapy strategies on outcome of patients with vasovagal syncope].

Objective: To analyze the impact of attack frequency as well as therapy strategies on outcome of patients with vasovagal syncope (VVS).

Methods: A total of 159 patients (aged from 15 - 59 years old) with VVS were included in this study. Patients were divided into low frequency (< 3) group (n = 95) and high (≥ 3) frequency group (n = 64) according to the attack frequency in the past 5 years at the primary survey.

Knee osteoarthritis prevalence in hospitalized elderly patients: a retrospective study.

This study aimed to determine the prevalence rate of knee osteoarthritis (OA) and the risk factors for OA in hospitalized elderly patients. We conducted this retrospective study in elderly patients (aged 65 years and older) who were hospitalized in the Geriatric Ward of General Hospital of Guangzhou Military Command of the People's Liberation Army between January 2011 and June 2013, including general condition, present history, past history, physical examination, X-ray results, and disease diagnosis. The prevalence, awareness, and treatment rates of knee OA in hospitalized elderly patients were calculated.

[The correlation between postural hypotension and myocardial infarction in the elderly population].

Objective: To investigate the association between the systolic/diastolic orthostatic hypotension (OH-S/OH-D) and myocardial infarction (MI) in the elderly.

Methods: Health screening physical examination were carried in 1081 subjects without MI aged over 65 years in Guangzhou Military region. The orthostatic blood pressure and heart rate were measured in supine position after resting for more than 5 minutes and at 0 and 2 minutes after standing.

[A clinical analysis of morning blood pressure surge in middle and old aged male hypertensive patients].

Objective: To investigate the morning blood pressure surge (MBPS) and its relationship with 24-hour blood pressure variability and anti-hypertensive drugs in middle-aged and elderly hypertensive patients.

Methods: A total of 521 middle-age and elderly men were surveyed with ambulatory blood pressure monitoring and ambulatory electrocardiograms recordings as well as questionnaire investigation from January 2009 to December 2010. Subjects were divided into MBPS positive group and MBPS negative group according to the level of MBPS [> 35 mm Hg (1 mm Hg = 0.

[Correlation between orthostatic hypotension and cardiovascular risks in elderly population].

Objective: To investigate the correlation between orthostatic hypotension and cardiovascular risks and hospitalization rate in the elders.

Methods: A total of 1174 people over 65 years old underwent health screening physical examination through a self-made questionnaire at our hospital. Their clinical data were collected.

[Prevalence and clinical characteristics of orthostatic hypotension in the elderly and retired population].

Objective: To determine the prevalence and clinical characteristics of orthostatic hypotension (OH) in the elderly and retired population.

Methods: A total of 1174 elderly and retired people underwent health screening physical examination in Guangzhou military region were included. The orthostatic blood pressure and heart rate were measured in supine position after resting for more than 5 minutes and at 0 and 2 min after standing.