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Ann Thorac Med. 2013 Apr;8(2):78-85. doi: 10.4103/1817-1737.109816.

Pulmonary hypertension in Saudi Arabia: A single center experience.

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1
Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Abstract

CONTEXT:

Several international studies have described the epidemiology of pulmonary hypertension (PH). However, information about the incidence and prevalence of PH in Saudi Arabia is unknown.

AIMS:

To report cases of PH and compare the demographic and clinical characteristics of PH due to various causes in a Saudi population.

METHODS:

Newly diagnosed cases of PH [defined as mean pulmonary artery pressure >25 mmHg at right heart cauterization (RHC)] were prospectively collected at a single tertiary care hospital from January 2009 and June 2012. Detailed demographic and clinical data were collected at the time of diagnosis, along with hemodynamic parameters.

RESULTS:

Of the total 264 patients who underwent RHC, 112 were identified as having PH. The mean age at diagnosis was 55.8 ± 15.8 years, and there was a female preponderance of 72.3%. About 88 (78.6%) of the PH patients were native Saudis and 24 (21.4%) had other origins. Twelve PH patients (10.7%) were classified in group 1 (pulmonary arterial hypertension), 7 (6.2%) in group 2 (PH due to left heart disease), 73 (65.2%) in group 3 (PH due to lung disease), 4 (3.6%) in group 4 (chronic thromboembolic PH), and 16 (14.3%) in group 5 (PH due to multifactorial mechanisms). PH associated with diastolic dysfunction was noted in 28.6% of group 2 patients, 31.5% of group 3 patients, and 25% of group 5 patients.

CONCLUSIONS:

These results offer the first report of incident cases of PH across five groups in Saudi Arabia.

KEYWORDS:

Chronic thromboembolic pulmonary hypertension; interstitial lung disease; left heart disease; pulmonary arterial hypertension; sarcoidosis

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