Background: Registries of patients with P.HTN have been instrumental in characterizing the history of the disease.
Aim of the work: to establish a registry of patients with pulmonary hypertension presented to our hospital
Patients and Methods: cross-sectional study involving 150 patients with pulmonary hypertension from November 2017 to May 2019. Results: 1- Pediatric group: 105 patients, 55 males and 50 females, the mean age was 5 years, 17.1% had Down syndrome. The most common etiology was VSD The most common presentation was dyspnea, the mean MPAP
was 42, the mean LVEDP was 11, the mean PVR was 4.73 and the mean RAP was 8.79. The mean RVSP was 64.48, the mean MPAP by echo was 46.45. 58 patients was compliant to regular follow up at our unit, 47 patients missed their follow up. 2- Adult age group: 45 patients, 15 males and 30 females and the mean age was 37 years, 17.8% had delay in receiving treatment, the most common etiology was ASD and The most common presentation was dyspnea. The mean MPAP was 41.63, the mean LVEDP was 12.42, the mean PVR was 4.63 and the mean RAP was 7.81 and the  mean RVSP was 70.38, the mean MPAP by echo was 47.11.33 patients (78.6%) was compliant to regular follow up at our unit, 9 patients missed their follow up Conclusion: Our study confirmed many similarities between our patients, and international data, Patients with pulmonary hypertension should be followed in well-established clinics with a proper protocol.