HTN Flashcards
New standard/definition of HTN is sustained ranges of ___ systolic and ____ diastolic:
> 130/ >80
systolic: when the heart contracts
diastolic: is when the heart rests
Order from the most affected population to the least with HTN:
African Americans 40%, Whites 30%, 29% Asians, 27% Hispanics
disproportionately affects low-middle income countries
Chronic HTN can lead to 6 things
- ischemic heart disease
- stroke
- renal failure
- retinopathy
- PVD
- overall mortality
SBP >130 mm Hg and DBP <80 mm Hg represents ____ systolic HTN
Isolated systolic HTN
SBP <130 mm Hg with DBP >80 mm Hg represents ___ HTN
Diastolic HTN
SBP >130 mm Hg and DBP >80 mm Hg represets ____ HTN
Combined systolic and diastolic HTN
___ ___ ____: is also a risk factor for cardiovascular morbidity as it correlates with vascular remodeling and “stiffness”
Widened pulse pressure
HTN can result from a wide range of primary and secondary processes that increase ____, ___ ___, or both
CO, vascular resistance, or both
SNS activity, dysregulation of RAAs, and deficiency in endogenous vasodilators can be contributing factors to ___
HTN
A physiologic or pharmacologic cause is considered ____ HTN. (minority amount of Pt’s with HTN)
Secondary HTN
Genetic and lifestyle risk factors associated with HTN include: 3 things
obesity, alcoholism, and tobacco
Hyperaldosteronism, Thyroid dysfucntion, OSA, Cushings, and pheochromocytoma are causes/examples of ____ HTN
secondary HTN
Children typically have secondary HTN dt renal ____ ___ or coarctation of the ____
renal parenchymal disease
coarctation of the aorta
List of drugs that increase BP:
Secondary HTN cause for Young adults (19-39yrs) 5%
Thyroid dysfunction and fibromuscular dysplasia
Secondary HTN cause for adolescents (12-18 yrs) 10-15%
Coarctation of the aorta
Secondary HTN cause for Middle-aged adults (40-64 yrs) 8-12%
Hyperaldosteronism, thyroid dysfunction, obstructive sleep apnea
Secondary HTN cause for Older adults (>65 yrs) 17%
atherosclerotic renal artery stenosis, renal failure, hypothyroidism
_____ ____ leads to remodeling of small & large arteries, endothelial dysfunction, and potentially irreversible end-organ damage
Chronic HTN
_____ _____: plays a major role in ischemic heart dz, LVH, CHF, CVA, PAD, aortic aneurysm, and nephropathy
Disseminated Vasculopathy
Vasculopathy can be early diagnosed with _____ measurements of the common carotid intimal-to-medial thickness and arterial pulse-wave velocity
Ultrasound
____ & ____ TRENDS may track the progression of LVH
____ can be used to follow microangiopathic changes indicative of cerebrovascular damage
EKG and echocardiogram
MRI
End-Organ Damage in HTN chart
_____ HTN: above goal HTN depsit 3+ antihypertensive drugs @ max dose
tx usually include: long acting CCB, ACI-I or ARB, and a diuretic
Resistant HTN
Controlled resistant HTN is controlled BP requiring __ + medications
4 + HTN medications
_____ HTN: uncontrolled BP on 5 drugs, present in 0.5% of pts
Refractory HTN
_______ HTN can result from BP inaccuracies (including white-coat syndrome) or medication noncompliance
Pseudo-resistant HTN
Weight loss, decrease ETOH, exercise, and smoking cessation are ____ _____ for HTN
lifestyle modifications
_____ correlation with BMI and HTN
Weight loss is an effective nonpharmacologic intervention, through direct BP reduction and synergistic enhancement of drug ____
Positive correlation
drug efficacy
1 lb weight loss can drop BP by ___ mmHg
1 mmHg
Excessive alchol use is associated with increase in HTN and resistance to ____ ____
antihypertensive drugs
Dietary potassium and calcium intake are inversely related to ____ & ____
HTN andcerebrovascular disease
The most recent ACC/AHA guidelines for BP management outlined 8 conclusions
What are they
- BP’s outside of the office are recommended for diagnosis and titration of antihypertensive meds
- Evidence supports treating pts with ischemic heart dz, cerebrovascular dz, CKD, or atherosclerotic cardiovascular dz w/ BP meds if SBP >130 mmHg
- limited data to support tx pts w/ cardiovascular or cerebrovascular dz with nonpharmacologic therapy if SBP >130 or DBP >80
- The same goals are recommended for HTN pts w/DM or CKD as for the general HTN population
- ACE-I’s,ARBs, CCBs, or thiazide diuretics are useful and effective in nonblack HTN pts,including those with diabetes
- In black adult HTN pts w/o heart failure or CKD, including those with DM, there ismoderate evidence to support initial antihypertensive therapy with a CCB or thiazidediuretics
- There is moderate evidence to support antihypertensive therapy with an ACE-I or ARB in those with CKD to improve kidney outcomes
- Nonpharmacologic interventions are important components to a comprehensive BPmanagement approach
This drug class is notably absent from 1st line therapy for HTN, it is reserved for pts w/CAD or tachydysrhythmia, or as a component of multidrug tx in resistant HTN
Beta blockers
How many drug classes have been approved for HTN?
15
Tx of secondary HTN is often ____, including surgical correction of renal artery stenosis, adrenal adenoma or pheochromocytoma
Interventional
Secondary HTN:
If renal artery reapir not possible, BP can be controlled w/ _____ alone or w/ _____
w/ ACE-I’s alone or with diuretics
**Although ACE-I’s, ARBs, and direct renin inhibitors are not recommendedin bilateral renal artery stenosis as they can accelerate renal failure
Primary hyperaldosteronism can be treated w/ an aldosterone antagonist such as ______
spironolactone
Certain disease processes, such as pheochromocytoma, require a _____ pharmacologic and _____ approach
combined pharmacologic and surgical approach
With Secondary HTN, Preop BP can be complicated dt white-coat HTN, pt are often instructed to pause BP meds, such as ACE-I’s and diuretics ______ surgery
On the day of surgery
_____ elevated BP readings over time are necessary for a diagnosis of HTN
Multiple
Secondary HTN:
If BP is elevated, pressure on the _____ arm should be obtained
contralateral
Surgery should not be delayed d/t a transient HTN, unless the pt is experiencing extreme HTN SBP > ____ & DBP > ____ or end-organ injury that could bereversed w/BP control
(SBP >180 or DBP >110)
These symptoms are all signs of _______ _____:
-flushing, sweating & palpitations suggestive of pheochromocytoma
-renal bruit suggestive of renal artery stenosis
-hypokalemia suggestive of hyperaldosteronism
Secondary HTN
Pt with secondary HTN who are proceeding with surgery may be informed to continue antihypertensive meds, with the possible exclusion of ___ & ____
ACE-Is and ARBs
Stopping BB or clonidine can be associated with _____ effects
rebound
Stopping CCBs is associated with increased perioperative ______ events
cardiovascular
Perioperative HTN increased blood loss as well as the incidence of ___ and ___
MI and CVA
HTN pts are prone to intra-op ______ volatility dt physiologic factors along with the BP meds on board.
hemodynamic volatility
With Chronic HTN brief periods of hypotension are associated w/ 3 things:
kidney injury, myocardial injury, and death