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The Pressure Cooker: Hypertension and Hemorrhagic Stroke

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<strong>The</strong> <strong>Pressure</strong> <strong>Cooker</strong>:<br />

<strong>Hypertension</strong> <strong>and</strong> <strong>Hemorrhagic</strong> <strong>Stroke</strong><br />

Darlene Bowman, RN, CNN(C)<br />

Nicole Chenier-Hogan, BNSc, MSc, APN,<br />

CNN(C)<br />

Delanya Podgers, BSc., RN, CNN(C)


Objectives<br />

�<br />

�<br />

�<br />

�<br />

Review prevalence <strong>and</strong> pathophysiology of<br />

hypertension <strong>and</strong> hemorrhagic stroke<br />

Discuss the relationship between<br />

hypertension <strong>and</strong> hemorrhagic stroke<br />

Review diagnosis of hypertension<br />

Review prevention, diagnosis,<br />

management, rehabilitation <strong>and</strong> outcomes<br />

of hypertensive hemorrhagic stroke through<br />

a case study


Intracerebral Hemorrhage<br />

�<br />

�<br />

�<br />

Approximately 15% of all strokes are due to<br />

intracerebral hemorrhage (ICH)<br />

Incidence<br />

� 15-19 / 100 000 among the general<br />

population<br />

� 200 / 100 000 among the elderly<br />

More common in men than women


�<br />

�<br />

�<br />

Primary hemorrhage<br />

�<br />

�<br />

Spontaneous without obvious underlying cause<br />

<strong>Hypertension</strong> <strong>and</strong> amyloid angiopathy account for 78-<br />

88% of primary hemorrhages<br />

Secondary hemorrhage<br />

� Results from underlying disease<br />

ICH are typically found in the basal ganglia,<br />

thalamus, subcortical white matter, cerebellum<br />

<strong>and</strong> pons


Most Common Sites <strong>and</strong> Sources of Intracerebral Hemorrhage<br />

Qureshi A et al. N Engl J Med 2001;344:1450-1460


Prognosis: ICH Score<br />

Points<br />

GCS 3-4 2<br />

5-12 1<br />

13-15 0<br />

ICH volume (cm 3 ) >30 1<br />

<<br />

30 0<br />

IVH Yes 1<br />

No 0<br />

Infratentorial Yes 1<br />

No 0<br />

Age > 80 years Yes 1<br />

No 0<br />

Total Score 30 day<br />

Mortality<br />

ICH Volume<br />

ABC / 2 rule<br />

0 0%<br />

1 13%<br />

2 26%<br />

3 72%<br />

4 97%<br />

5 100%


�<br />

ICH is dynamic<br />

�<br />

�<br />

Hematoma growth occurs in the first few<br />

hours <strong>and</strong> is associated with neurological<br />

deterioration<br />

Perihematoma edema develops over 3-96<br />

hours <strong>and</strong> contributes significantly to<br />

morbidity <strong>and</strong> mortality


�<br />

�<br />

�<br />

<strong>Hypertension</strong><br />

<strong>Hypertension</strong> is an important risk factor for<br />

stroke <strong>and</strong> cardiovascular disease<br />

�<br />

62% of all stroke events are due to suboptimal BP<br />

¼ of Canadian adults have hypertension<br />

<strong>and</strong> it is estimated that 90% will develop<br />

hypertension over their lifetime<br />

<strong>Hypertension</strong> rates are rising at a faster rate<br />

than predicted


<strong>Hypertension</strong> <strong>and</strong> the Vessel<br />

�<br />

�<br />

�<br />

�<br />

High intralumen pressures alter the endothelium<br />

<strong>and</strong> smooth muscle in intracerebral arteries<br />

Degenerative changes in the smooth muscle<br />

predisposes for ICH<br />

Endothelial damage can lead to thrombi formation<br />

<strong>and</strong> ischemic lesions<br />

Increased endothelial stress can increase the<br />

permeability of the blood brain barrier


<strong>Hypertension</strong> Diagnosis<br />

�<br />

�<br />

SBP >140 mmHg <strong>and</strong>/or DBP >90 mmHg<br />

requires a specific visit for assessment of<br />

hypertension<br />

At the initial visit<br />

�<br />

�<br />

At least three readings should be taken – the first reading<br />

discarded <strong>and</strong> the latter two averaged<br />

History <strong>and</strong> physical should be performed <strong>and</strong> diagnostic<br />

testing to determine end organ damage as indicated<br />

(CHEP, 2010)


�<br />

During the second visit<br />

�<br />

�<br />

Patients with macrovascular organ damage,<br />

diabetes or chronic kidney disease can be<br />

diagnosed with hypertension if SBP remains<br />

>140 mmHg <strong>and</strong>/or DBP remains >90 mmHg<br />

Other patients can be diagnosed with<br />

hypertension if SBP >180 mmHg <strong>and</strong>/or DBP<br />

>110 mmHg<br />

(CHEP, 2010)


�<br />

<strong>The</strong> remaining patients should have further<br />

evaluation<br />

�<br />

Office manual BP – the patient can diagnosed as<br />

hypertensive if SBP >160mmHg or the DBP<br />

>100mmHg averaged across the three visits OR<br />

if the SBP averages >140 mmHg or the DBP<br />

averages >90 mmHg over five vists<br />

(CHEP, 2010)


�<br />

�<br />

Ambulatory BP monitoring – hypertension can be<br />

diagnosed if the mean wake SBP >135 mmHg or<br />

the DBP >85 mmHg OR if the mean 24 hour<br />

SBP >130 mmHg or the DBP >80mmHg<br />

Home BP measurement – hypertension can be<br />

diagnosed if the average SBP >135 mmHg or<br />

DBP >85 mmHg<br />

(CHEP, 2010)


Follow up<br />

�<br />

�<br />

�<br />

If at the last visit the patient was not diagnosed as<br />

hypertensive they should be reassessed yearly<br />

If lifestyle modification alone was recommended<br />

follow should be at 3 to 6 month intervals<br />

Patients on antihypertensive drug treatment<br />

should be seen every 1 to 2 months until readings<br />

on two consecutive visits are below target then<br />

should be seen at 3 to 6 months intervals<br />

(CHEP, 2010)


Lifestyle Modification<br />

�<br />

�<br />

�<br />

�<br />

�<br />

Exercise<br />

Weight reduction<br />

Alcohol consumption<br />

Dietary recommendations<br />

�<br />

Sodium<br />

Stress management<br />

(CHEP, 2010)


Prevention - <strong>Hypertension</strong><br />

�<br />

�<br />

�<br />

Prevention <strong>and</strong> treatment of hypertension<br />

are key<br />

Hypertensive changes in intracerebral<br />

vasculature can be modified significantly by<br />

lifestyle changes such as diet <strong>and</strong> exercise<br />

Education surrounding BP monitoring,<br />

antihypertensive medication adherence <strong>and</strong><br />

lifestyle are essential


Case Study


Mr. W.<br />

ID<br />

� 55 year old male, smoker, lives with spouse <strong>and</strong> 2<br />

daughters, works as a custodian<br />

HPI<br />

� developed severe headache in am<br />

� became drowsy, confused <strong>and</strong> developed an unsteady<br />

gait when walking<br />

� Presented to ER with ↓ LOA but rousable to speech <strong>and</strong><br />

�<br />

continuing to complain of severe headache<br />

Mr. W.’s spouse reports he had not been taking any of<br />

his antihypertensive medications for more than a month


Past Medical History<br />

� <strong>Hypertension</strong> diagnosed in 2005<br />

� Hypertensive crisis treated in fall 2008<br />

� Psoariasis<br />

Medications<br />

� Norvasc 15 mg po daily<br />

� Metoprolol 100 mg po bid<br />

� Ramipril 10 mg po daily<br />

� HCTZ 25 mg po daily<br />

� Terazosin 2 mg po qhs


Physical Exam<br />

� Neurodrowsy, but arousable, GCS 13/15 oriented<br />

to person, PEARL, pupils 2mm bilaterally, moving<br />

all four limbs with 5/5 strength bilaterally<br />

� BP on admission 236/138<br />

� Current BP 191/116<br />

� S1 S2 heart sounds present no audible murmurs<br />

� Chest sounds clear


Investigations<br />

� CT head showed ICH with blood in right<br />

thalamus, extending into ventricular system<br />

into both lateral ventricles <strong>and</strong> into third<br />

ventricle<br />

� Early changes suspicious for mild<br />

hydrocephalus<br />

�<br />

Labs<br />

�<br />

Lytes N, creatinine 119, Hgb 158, leukocytes,<br />

platelets normal


Clinical Management<br />

�<br />

�<br />

�<br />

�<br />

<strong>Stroke</strong> unit care<br />

Imaging to determine hemorrhage<br />

extension, development of hydrocephalus<br />

Medical management<br />

Surgical management


�<br />

�<br />

�<br />

�<br />

Mr. W was admitted to an intensive care for<br />

close monitoring of neuro status<br />

Labetalol infusion was initiated in ER to<br />

decrease BP (goal SBP < 150 mmHg)<br />

NPO for potential OR if condition deteriorated<br />

<strong>and</strong> evidence of hydrocephalus<br />

Investigative workup for secondary cause of<br />

ICH


Course in hospital<br />

� Blood pressure remained controlled with<br />

labetalol <strong>and</strong> oral antihypertensives<br />

� HCTZ 25mg, metoprolol 150 mg bid, ramipril<br />

mg, norvasc 10 mg big, terazosin 5mh qHS<br />

� Neurologically remained stable, no surgical<br />

intervention<br />

15


PT initial assessment<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

Cognition/communication<br />

MSK<br />

Sensation<br />

Coordination<br />

Balance<br />

Mobility


Assessment findings<br />

�<br />

�<br />

�<br />

�<br />

participation limited<br />

↓balance<br />

↓mobility<br />

↓functional independence<br />

Plan<br />

�<br />

Follow <strong>and</strong> progress mobility


OT initial assessment<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

Home environment<br />

Social support<br />

BADL<br />

IADL<br />

Productivity<br />

Communication<br />

Object recognition<br />

Cognition - MOCA<br />

Praxis<br />

Visual Confrontation<br />

Strength/Coordination/Sensation<br />

Mobility


OT Recommendations<br />

�<br />

�<br />

�<br />

↓cognitive function<br />

MOCA 22/30<br />

Deficits in visuospatial/executive, language<br />

<strong>and</strong> attention


Social Work<br />

Issues<br />

�<br />

�<br />

Regarding payment for medication<br />

Short term sick leave


<strong>Stroke</strong> Rehabilitation<br />

�<br />

“<strong>Stroke</strong> rehabilitation is a progressive,<br />

dynamic, goal orientated process aimed at<br />

enabling a person with an impairment to<br />

reach their optimal physical, cognitive,<br />

emotional, communicative <strong>and</strong>/or social<br />

functional level”<br />

(Heart <strong>and</strong> <strong>Stroke</strong> Foundation of Ontario)


On Admission to Rehabilitation<br />

�<br />

�<br />

�<br />

Easily distracted by surroundings<br />

Severe difficulties with memory<br />

�<br />

Verbal <strong>and</strong> visual information<br />

Easily fatigued, both physically <strong>and</strong><br />

cognitively<br />

�<br />

When tired easily irritated, frustrated <strong>and</strong> angry


Strategies Recommended- Attention<br />

�<br />

�<br />

�<br />

�<br />

�<br />

�<br />

Focus on one thing at a time<br />

Don’t rush<br />

Work in a quiet environment<br />

Avoid interruptions<br />

Socialize in small groups for shorter visits<br />

Take frequent breaks


Strategies Recommended-Fatigue<br />

�<br />

�<br />

�<br />

�<br />

�<br />

Maintain regular <strong>and</strong> structured routine<br />

Pace yourself<br />

Alternate physical <strong>and</strong> mental activities<br />

throughout the day<br />

Eat a well balanced diet <strong>and</strong> exercise<br />

Take scheduled rest breaks<br />

�<br />

Rest before you are tired


Strategies Recommended-Memory<br />

�<br />

�<br />

�<br />

�<br />

Maintain a predictable routine<br />

Keep an organized environment<br />

Keep important items in the same location<br />

all the time<br />

Use a dosette to organize medications


Mobility<br />

�<br />

�<br />

Altered ambulation-required 4 wheeled walker<br />

� Able to walk short distances with straight<br />

cane<br />

Reduced balance. Berg Balance Scale (BBS)<br />

50/56


Berg Balance Scale (BBS)<br />

�<br />

�<br />

�<br />

<strong>The</strong> BBS measures balance in older adults <strong>and</strong><br />

stroke survivors<br />

In this 14-item scale, patients must maintain<br />

positions <strong>and</strong> complete moving tasks of varying<br />

difficulty. In most items, patients must maintain<br />

a given position for a specified time.<br />

41-56 on the BBS represents good balance.<br />

(<strong>Stroke</strong> Engine,2010)


Strategies Implemented:<br />

Balance & Stability<br />

�<br />

�<br />

Strengthen <strong>and</strong> improve motor control in<br />

proximal muscle groups with activities that<br />

facilitate hip extension with knee flexion, such<br />

as bridging exercises<br />

Improve knee control to avoid or limit<br />

hyperextension during gait with activities such<br />

as st<strong>and</strong>ing small squats.<br />

(Ketsner, 2002)


Strategies Implemented-Mobility<br />

�<br />

Treatment concentrated on gait retraining<br />

<strong>and</strong> endurance training<br />

�<br />

�<br />

Walking-progressed to greater distances on<br />

discharge<br />

Remembered to use cane in left h<strong>and</strong>-on<br />

admission gait better if cane in left h<strong>and</strong>eventually<br />

no longer required cane


Gait Retraining & Endurance<br />

Training<br />

�<br />

�<br />

Practice walking-using cane on various<br />

surfaces such as carpet, gravel, grass <strong>and</strong><br />

concrete<br />

Endurance training-using stationary bike,<br />

focusing on increasing time <strong>and</strong> resistance


Patient <strong>and</strong> Family Concerns<br />

�<br />

�<br />

Participated in adjustment counseling in<br />

hospital<br />

It was recommended that Mr. W <strong>and</strong> family<br />

continue to participate in counseling after<br />

discharge to:<br />

�<br />

�<br />

�<br />

Reduce stress<br />

Ease transition home<br />

Help deal with conflict


Community Reintegration<br />

�<br />

Referral to Regional Community Brain<br />

Injury Services (RCBIS)<br />

�<br />

�<br />

Counselors who assist with transition from<br />

hospital to home<br />

Services include psychology, life skills <strong>and</strong><br />

independence training <strong>and</strong> family support<br />

� Advocacy, social <strong>and</strong> recreational activities,<br />

education <strong>and</strong> information about brain injury


�<br />

Multiple visits to emergency room in months<br />

post discharge:<br />

�<br />

Assessed by clinical psychiatry <strong>and</strong> social work<br />

� Cognitive impairment secondary to stroke<br />

� Demonstrated affective disregulation<br />

� Severe fatigue<br />

� Anxiety<br />

� Periods of lightheadedness<br />

� 60 pound weight loss


�<br />

Most recent ER visit:<br />

�<br />

�<br />

�<br />

�<br />

�<br />

Hypertensive with BP 170/100<br />

�<br />

Given metoprolol<br />

to lower BP<br />

Slurred speech <strong>and</strong> right leg weakness<br />

CT head revealed no acute stroke<br />

Pt revealed that he had not been taking medication<br />

Referred to stroke prevention clinic for follow-up<br />

�<br />

Has not attended appointment


In Conclusion<br />

�<br />

�<br />

Prevention <strong>and</strong> management of<br />

hypertension is key to modifying stroke risk<br />

Interprofessional <strong>Stroke</strong> Care throughout<br />

the continuum is critical for optimal<br />

management


Thank you<br />

Questions


References<br />

Heart <strong>and</strong> <strong>Stroke</strong> Foundation of Ontario. (2010). Retrieved May 15,<br />

2010 from http://www.heart<strong>and</strong>stroke.on.ca/site<br />

/c.pvI3IeNWJwE/b.5339623/k.AD4E/HCP__<strong>Hypertension</strong>.htm<br />

Fric-Shamji, E., Shamji, M., Cole, J. & Benoit, B. (2008). Modifiable<br />

risk factors for intracerebral hemorrhage. Canadian Family<br />

Physicians, 54: 1138-1139.<br />

Lai, S., Chen, T., Lee, T., Ro, L. & Hsu, S. (2005). Spontaneous<br />

intracerebral hemorrhage in young adults. European Journal of<br />

Neurology, 12: 310-316.<br />

Leenen, F., Dumais, J., McInnis, N., Turton, P., Stratychuk, L. et al.<br />

(2008). Results of the Ontario Survey on the prevalence <strong>and</strong> control<br />

of hypertension. Canadian Medical Association Journal, 178(11),<br />

1441- 1449.


Mitchell, P., Dipayan, M., Gregson, B. & Mendelow, A. (2007).<br />

Prevention of intracerebral haemorrhage. Current Drug Targets, 8:<br />

832-838.<br />

Passero, S., Ulivelli, M., Reale, F. (2002). Primary intraventricular<br />

haemorrhage in adults. Acta Neurlogica Sc<strong>and</strong>inavia, 105: 115-<br />

119.<br />

Passero, S., Ulivelli, M. & Rossi, S. (2003). Blood pressure rise in<br />

spontaneous intracerebral haemorrhage: Epiphenomenon or<br />

precipitating factor . Journal of Human <strong>Hypertension</strong>, 17: 77-79.<br />

Rasool, A., Rahman, A., Choudhury, S. & Singh, R. (2004). Blood<br />

pressure in acute intracerebral haemorrhage. Journal of Human<br />

<strong>Hypertension</strong>, 18: 187-192.


Ruhl<strong>and</strong>, J.& van Kan, P. (2003). Medial Pontine <strong>Hemorrhagic</strong> <strong>Stroke</strong>.<br />

Physical <strong>The</strong>rapy, 83(6), 552-566.<br />

Sessa, M. (2008). Intracerebral hemorrhage <strong>and</strong> hypertension.<br />

Neurological Science, (29): S258-S259.<br />

Subramaniam, S. & Hill, M. (2006). Intracerebral Hemorrhage. Calgary<br />

Faculty of Medicine <strong>Stroke</strong> Rounds, 1(1). Retrieved May 15, 2010 from<br />

http://strokerounds.ca/crus/strokeng_11_1206.pdf<br />

<strong>Stroke</strong> Engine, (2010). Retrieved November 19, 2010 from<br />

http://www.medicine.mcgill.ca/strokengine-assess/module_bbs_indepthen.html


Thrift, A., McNeil, J., Forbes, A. & Donnan, G. (1998). Three important<br />

subgroups of hypertensive persons at greater risk of intracerebral<br />

hemorrhage. American Heart Association, 31: 1223-1229.<br />

Tu, K., Chen, Z. & Lipscombe, L. (2008). Prevalence <strong>and</strong> incidence of<br />

hypertension from 1995 to 2005: A population-based study. Canadian<br />

Medical Association Journal, 178(11), 1429-1435.

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