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Youssf, G., S. Nagy, ahmed talaat, and M. A. Hamid, "P6580 Pattern of 24 hours ambulatory blood pressure readings in hypertensive patients with controlled office blood pressure measurements", European Heart Journal, vol. 39, issue 1, 2018.
Youssef, G., Z. Saad, W. Ammar, and Yasser Sharaf, "Assessment of left ventricular regional wall motion abnormalities using regional time-volume curves obtained by real time three-dimensional echocardiography", The Egyptian heart journal, vol. 70, issue 3, pp. 189-194, 2018. 3d_assessment_of_swma.pdf
Youssef, G., H. Kassem, O. Ameen, A. H. Taaban, and H. Rizk, "Pre-hospital and hospital delay in patients with non-ST elevation acute coronary syndromes in tertiary care", Egyptian Heart Journal, vol. 69, pp. 177-181, 2017. prehospital_and_hospital_delay_hossams.pdf
Youssef, G., "Hypertension in pregnancy", E-Journal of Cardiology Practice, vol. 17, issue N° 22, 2019. escardio.org-hypertension_in_pregnancy.pdf
Youssef, G., A. Kamal, R. Diab, and M. A. Hamid, "P5825Intravenous iron therapy in acute decompensated heart failure patients with iron deficiency anaemia", European Heart Journal, vol. 38, issue suppl_1, 2017.
Youssef, G., M. Hosny, W. Ramadan, and E. Baligh, "Incidence of maternal and fetal complications in pregnant with mechanical prosthetic cardiac valves: a cohort study", European Heart Journal, vol. 42, issue 1, 2021. ehab724.2886.pdf
Youssef, G., "Mitral stenosis in pregnant patients", E-journal of Cardiology Practice, vol. 16, N° 18, 2018. escardio.org-mitral_stenosis_in_pregnant_patients.pdf
Youssef, G., S. Nagy, A. El-gengehe, M. A. Hamid, and A. Abdelaal, "Once versus twice daily antihypertensive medications for the control of nocturnal blood pressure: a comparative study.", The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology, vol. 72, issue 1, pp. 9, 2020. Abstract

BACKGROUND: Blood pressure (BP) shows short-term variability within the 24 h, which can only be assessed with 24-h ambulatory blood pressure monitoring (ABPM). It is of utmost importance to control BP throughout the night to reduce incidence of hypertension complications. The purpose of this study is to evaluate the effect of timing and frequency of antihypertensive medications on the average nighttime and 24-h blood pressure control.

RESULTS: The study enrolled 199 hypertensive patients with controlled office blood pressure; 135 (67.8%) patients were on once daily antihypertensive medication (group 1) while 64 (32.2%) patients were on twice daily doses (group 2). The mean office SBP was 128.7 ± 7.8 mmHg in group 1 vs 129.6 ± 6.6 mmHg in group 2, (p = 0.421). ABPM readings for both groups were as follows: mean daytime SBP was 125.4 ± 11.6 mmHg vs 130.1 ± 12.9, p = 0.011; mean nighttime SBP was 117.0 ± 12.4 mmHg vs 123.1 ± 13.9 mmHg, p = 0.002, and mean 24-h SBP was 122.7 ± 10.6 mmHg vs 127.5 ± 12.0, p = 0.005. The prevalence of non-dipping was 68.9% in group 1 vs 70.3% in group 2 patients, p = 0.8 (the mean dipping ratio was 0.93 ± 0.08 in group 1 vs 0.95 ± 0.07 in group 2, p = 0.198). The prevalence of masked hypertension was higher in group 2 (28.1% vs 43.8%, p = 0.029).

CONCLUSION: Taking an extra antihypertensive pill at night did not show a decrease in the nighttime or the average 24H blood pressure in hypertensive patients with controlled office BP. On the contrary, patients who used twice daily antihypertensive medications seem to have higher nighttime and 24-h SBP, although the dipping ratio was comparable in both groups.

Youssef, G., B. Zayed, mohammed momtaz, A. Roshdy, and M. Shaaban, "Lung ultrasound and bioimpedance in assessment of volume status of hemodialysis patients", Kasr Al Ainy Medical Journal, vol. 23, issue 1, pp. 18-23, 2017. kamj_35_16r2_paper_1.pdf
Youssef, G., D. Mekkawy, N. E. Fayoumy, A. Abbass, and M. Allam, "P1817 Assessment of carotid stiffness indices in patients with ischemic stroke", European Heart Journal, vol. 40, 2019. abstract_esc.docx
Youssef, G. S., "Management of atrial fibrillation during pregnancy", E-journal of Cardiology Practice, vol. 17, issue N° 15, 2019. escardio.org-management_of_atrial_fibrillation_during_pregnancy.pdf
Youssef, G., A. El Fol, W. Ammar, and Y Sharaf, "Comparing the central arterial stiffness indices in the decompensated and compensated states of heart failure: a cohort study", European Heart Journal, vol. 42, issue 1, 2021. ehab724.2886.pdf
Youssef, G., S. Nagy, A. El-gengehe, A. Abdelaal, and M. A. Hamid, "Masked uncontrolled hypertension: Prevalence and predictors", Egyptian Heart Journal, vol. 70, issue 4, pp. 369-373, 2018. much.pdf
Youssef, G., S. Nagy, ahmed talaat, and M. A. Hamid, "P3804 Once vs twice daily anti-hypertensive medication: which is better in nighttime blood pressure control?", European Heart Journal, Suppl, vol. 39, issue 1, pp. 566, 2018.
Youssef, G., L. Sulaiman, D. Hesham, and M. A. Hamid, "The integrated role of NT-pro BNP and STE-GLS for the early detection of chemotherapy-induced cardiotoxicity", European Heart Journal, vol. 41, issue Supplement 2, pp. 1154, 2020. ehaa946.1154.pdf
Youssef, G., N. T. Allam, W. Gaber, A. Afifi, and D. Hesham, "Increased arterial stiffness in rheumatoid arthritis and Its relation to disease activity: A cross sectional study", Egyptian Heart Journal, vol. 70, issue 1, pp. 35-40, 2018. arterial_stiffness_in_rheumatoid_arthritis.pdf
Youssef, G., "Aortic valve diseases in pregnancy", E-Journal of Cardiology Practice, vol. Vol. 18, issue N° 19, 2020. avd_during_pregnancy.pdf
Youssef, G., M. Mohamed, M. A. Hamid, and D. El Remisy, "Reasons behind high rate of non-compliance to scheduled office visits in hypertensive patients: results from the Egyptian registry of specialized hypertension clinics.", The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology, vol. 74, issue 1, pp. 45, 2022. Abstract

BACKGROUND: Hypertensive patients' compliance to the clinic's follow-up visits is associated with a better blood pressure control. The aim of this study was to detect the reasons of non-compliance to office visits in Egyptian hypertensive patients.

RESULTS: This is an observational, prospective, cross-sectional research study where patients were enrolled from the registry of the specialized hypertension clinics of 9 university hospitals. Those who attended less than 3 office visits, throughout the registry period, were considered non-compliant and were contacted through the phone. A simple questionnaire was prepared, which included questions about the reasons of non-compliance to follow up. There were 3014 patients eligible for inclusion in this study but only 649 patients (21.5%) completed the questionnaire. Patients claimed that the reasons of non-compliance to the follow up visits in the specialized hypertension clinics were as follows: 444 patients (68.4%) preferred to follow up elsewhere mostly in pharmacies, 53 patients (8.2%) claimed that the healthcare service was unsatisfactory, 94 patients (14.5%) were asymptomatic, and 110 patients (16.9%) said that the clinic was far from their homes. Despite non-compliance to office visits, 366 patients (59.2%) were compliant to their antihypertensive medications and 312 (48.1%) patients were compliant to salt restriction. About 34% of patients used herbs, mainly hibiscus, as adjuvant to their antihypertensive medications.

CONCLUSIONS: Reasons for non-compliance to office visits in hypertensive patients were either patient-related, or healthcare-related. To improve patients' compliance, physicians need to educate their patients about hypertension, patients need to follow their doctors' instructions as regard medications, salt restriction and scheduled office visits, and governments need to provide better and cheaper healthcare services.

Youssef, G., I. Tebi, D. Osama, A. Shehahta, E. Baligh, Z. Ashour, and H. Gamal, "Familial history of hypertension as a predictor of increased arterial stiffness in normotensive offspring", Egyptian Heart Journal, vol. 69, pp. 37-44, 2017.
Youssef, G., "Salt and hypertension: current views", E-journal of Cardiology Practice, vol. 22, issue 3, 2022. escardio.org-salt_and_hypertension_current_views.the_article.pdf
Youssef, G., M. Mashaal, D. El Remaisy, K. Sorour, and H. Rizk, "Pericardial Effusion In Prosthetic and Native Valve Infective Endocarditis", Indian Heart Journal, vol. 71, pp. 80-84, 2019. pe_in_ie_paper.pdf
Youssef, G., "Valvular heart diseases in women", Egyptian Heart Journal, vol. 73, pp. 58, 2021. valvular_hd_review_article.pdf
Yehia, H., G. Youssef, M. Gamil, M. Elsaeed, and K. H. A. L. E. D. SADEK, "Electrocardiographic substrates of arrhythmias in patients with end-stage and chronic kidney diseases: a case-control study", The Egyptian Heart Journal, vol. 75, issue 1, pp. 13, 2023.
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Tromp, J., A. M. Jackson, M. A. Hamid, D. Fouad, G. Youssef, M. C. Petrie, J. Bauersachs, K. Sliwa, and P. van der Meer, "Thromboembolic events in peripartum cardiomyopathy: Results from the ESC EORP PPCM registry.", European journal of heart failure, vol. 25, issue 8, pp. 1464-1466, 2023.
Tebi, I. E., E. Baligh, H. Gamal, Z. Ashour, G. Youssef, A. Shehata, and M. Mokhtar, "Familial history of hypertension as a predictor of increased arterial stiffness", European Heart Journal, vol. 34, issue Suppl_1, 2013.
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