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A clinical approach to hypertension
1Hutzel Hospital Medical Unit, Department of Medicine, Wayne State University School of Medicine, Detroit, Michigan.
Insights
This study introduces a new hypertension approach, considering blood pressure, vascular damage, and cold pressor response. Males with hypertension and arteriosclerosis showed higher mortality, linked to exaggerated diastolic cold pressor response.
Area of Science:
- Cardiology
- Hypertension Research
- Vascular Medicine
Background:
- Traditional hypertension management often overlooks vascular damage and individual blood pressure variability.
- Assessing atherosclerosis and arteriosclerosis alongside blood pressure is crucial for accurate patient stratification.
- Understanding factors like blood pressure lability and cold pressor response offers deeper insights into hypertension prognosis.
Purpose of the Study:
- To evaluate a novel approach to hypertension management incorporating baseline blood pressure, lability, and cold pressor response.
- To assess the prognostic impact of vascular damage (atherosclerosis/arteriosclerosis) in hypertensive patients.
- To determine the relationship between specific physiological responses and mortality in patients with hypertension and superimposed arteriosclerosis.
Main Methods:
- Patients were categorized into four groups: Normal, Arteriosclerosis, Hypertension, and Hypertension with superimposed arteriosclerosis.
- A comprehensive assessment included casual blood pressure, baseline blood pressure, blood pressure lability, and cold pressor response measurements.
- Treatment followed a step-wise approach, initiating with thiazides and escalating antihypertensive agents as needed over a 4-7 year follow-up period.
Main Results:
- Patients with isolated hypertension or isolated arteriosclerosis exhibited 100% survival during the observation period.
- A significant male-to-female mortality disparity was observed in the hypertension with superimposed arteriosclerosis group (6:1 ratio).
- Deceased males in the mixed group showed a markedly exaggerated diastolic cold pressor response compared to survivors.
Conclusions:
- Hypertension management requires a multifaceted approach considering vascular status and physiological responses.
- The exaggerated diastolic cold pressor response may serve as a critical predictor of mortality in males with hypertension and arteriosclerosis.
- Further research into intensified treatment strategies for patients with high-risk physiological profiles is warranted to improve survival rates.
Abstract:
1. A new approach to hypertension is introduced by taking into consideration not only casual blood pressure but also baseline blood pressure, blood pressure lability and cold pressor response. 2. In addition to blood pressure measurements the vascular damage in terms of atherosclerosis and/or retinal arteriosclerosis was also taken into consideration by grouping the patients into four groups: Normal; Arteriosclerosis; Hypertension; Hypertension & superimposed arteriosclerosis. 3. Prior to initiating treatment, at least six casual blood pressures were taken by the technical assistant and the physician, during three different visits. 4. The step method, by starting with thiazides and adding other antihypertensive agents during the subsequent office visits according to response was followed. 5. The patients were followed for a four to seven year period so that a meaningful prognostic and therapeutic evaluation was possible. 6. All patients with pure hypertension and without arteriosclerosis and those with pure arteriosclerosis and without hypertension survived during the period of observation. 7. Twenty-three per cent (12 of 51) of males having hypertension with super-imposed arteriosclerosis died, as compared to only 4% (2 of 54) of females; thus a male to female mortality ratio of about 6:1 was observed. 8. A comparison of the living and deceased males of the mixed group having hypertension and superimposed arteriosclerosis showed that the most significant difference between the two subgroups was a marked exaggeration of diastolic cold pressor response in the deceased as compared to the still living patients. 9. It remains to be seen whether or not in these patients with a marked exaggeration of the diastolic cold pressor response, by using a more vigorous treatment with drugs such as methyldopa, propranolol or guanethidine in relatively high doses, we might be able to reduce mortality and increase survival.