Literature DB >> 9432207

[Role of nitrates in pharmacologic modulation of reflected waves and their significance in the treatment of arterial hypertension in the elderly].

A Felizardo1, J Maldonado, M Pego, F Teixeira, L A Providência.   

Abstract

OBJECTIVE: To analyse the efficacy of a sustained release form of isosorbide mononitrate in the treatment of isolated systolic hypertension in the elderly. PATIENTS: 24 patients suffering from essential hypertension and with an average age of 68.5 +/- 1.1 years were studied: 20 male and four female patients, all with isolated systolic hypertension (systolic blood pressure (SBP) > 160 mmHg and diastolic blood pressure (DBP) < 90 mmHg). None of the patients had received pharmacological treatment for their hypertension. None were receiving other medication or displayed concomitant pathologies.
METHODS: Assessment of all the patients was made with the measurement of their occasional blood pressure, ambulatory measurement of blood pressure and the measurement of pulse wave velocity in two arterial zones (carotid-femural) by mecanography before and after thirty days of monotherapy with a single 50 mg dose of a sustained release form of isosorbide mononitrate. Four patients were withdrawn from tests due to signs of intolerance to the drug.
RESULTS: A fall in occasional blood pressure was recorded, with statistical significance in relation to SBP only: SBP-192 +/- 15.5-->164 +/- 10.2 mm Hg (p < 0.001); DBP-85 +/- 4.2-->83 +/- 5.4 mm Hg. Ambulatory blood pressure readings also showed a significant drop in average SBP readings over the 24 hours: SAP 152.6 +/- 13.6-->140.5 +/- 15.4 mm Hg (p < 0.03); DBP 77.2 +/- 8.7-->72.3 +/- 5.47 mm Hg. No significant changes in pulse wave velocity were recorded for the zones studied: carotid-femural -20.8 +/- 6.0-->21.7 +/- 5.1 m/sec; femural-foot -4.5 +/ -1.4-->4.4 +/- 2.6 m/sec; a marked alteration in the morphology of arterial pulse in the aortic zone was observed, however, with a clear levelling off and reduction of the systolic peak.
CONCLUSION: Treatment with nitrates may be a new and effective alternative for the treatment of the age group in question. It acts specifically on the pathophysiological mechanisms of isolated systolic arterial hypertension in the elderly. Changes in reflected wave velocity (retrogrades) seem to cause the significant reduction in SBP, observed in this group of patients.

Entities:  

Mesh:

Substances:

Year:  1997        PMID: 9432207

Source DB:  PubMed          Journal:  Rev Port Cardiol        ISSN: 0870-2551            Impact factor:   1.374


  4 in total

1.  Sonic vibrational analysis provides continuous measurement of arterial properties.

Authors:  R M Rodriguez; M H Sher; K A Beringer; R G Caro; R G Pearl
Journal:  J Clin Monit Comput       Date:  2000       Impact factor: 2.502

Review 2.  Nitrates as adjunct hypertensive treatment.

Authors:  Gordon S Stokes
Journal:  Curr Hypertens Rep       Date:  2006-04       Impact factor: 5.369

3.  Sustained-release isosorbide mononitrate as adjuvant treatment in isolated systolic hypertension in the elderly.

Authors:  Daniel Abad Pérez; Iluminada García Polo; Francisco José Rodríguez Salvanés; Sara Bellisco Roncal; Patricia Ibáñez Sanz; Carmen Suárez Fernández
Journal:  J Hum Hypertens       Date:  2021-04-13       Impact factor: 3.012

4.  Effect of oral nitrates on pulse pressure and arterial elasticity in patients aged over 65 years with refractory isolated systolic hypertension: study protocol for a randomized controlled trial.

Authors:  Daniel Abad-Pérez; Blanca Novella-Arribas; Francisco J Rodríguez-Salvanés; Luis M Sánchez-Gómez; Iluminada García-Polo; Carmen Verge-González; Carmen Suárez-Fernández
Journal:  Trials       Date:  2013-11-14       Impact factor: 2.279

  4 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.