Cardiorespiratory Flashcards

1
Q

Describe the term ‘patient pathway’

A
  • Describes the best route from primary contact with services.
  • Stages of investigation/treatment.
  • Then definitive treatments.
  • Lastly discharge from NHS with or without social services.
  • Useful to guide clinicians and to inform patients on what is supposed to happen next.
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2
Q

Outline the different ways people may access services

A
  • GP.
  • Self referral - A&E, online (111).
  • Emergency - ambulance.
  • Education institution - welfare.
  • Dental practitioner.
  • Charity/community programs.
  • Lay referral.
  • Pharmacists.
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3
Q

List factors that influence access to care

A

Postcode lottery - depending on where you live, you can get access to different services.

Barriers to health seeking:

  • Inverse care law - poor areas have less provision.
  • Geographical distance - transport costs, time.
  • Previous bad experience - staff, waiting times.
  • Childcare - availability and costs.
  • Psychological factors - refusal to believe, worried, lack of education.
  • Context of event - special events happening.
  • Perception/evaluation of symptoms as harmless.

Triggers to health seeking:

  • Interference with work/physical activity.
  • Interference with social relations.
  • Assigning arbitrary time limit.
  • Interpersonal crisis - deaths, divorces.
  • Sanctioning.
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4
Q

Describe the approaches to overcome barriers to accessing care

A
  • Quality improvement - identifying barriers, think about changes, implement change, audit.
  • Community outreach program - increase provision in the community, rather than centralised provision which may be more difficult to access.
  • Transport - volunteer drivers, discounted hospital buses.
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5
Q

Why have publicly available indicators been proposed and used?

A

Performance indicators on each healthcare system

  • Schools and other public sectors use it - why not healthcare system?
  • Public scandals increase pressure for outcomes to be published and used.
  • Already collect outcome data through coded computerized clinical databases, so why not publish it publically?
  • Mostly influences clinicians and managers not so much patients.
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6
Q

What are the strengths and limitations of publicly available indicators?

A

Benefits

  • Act as a driver for change - incentive.
  • Identify issues and improvements that need to be made.
  • Standardised across trust - comparable measure of performance.
  • Policies used in high performance trusts can be used in other trusts.

Disadvantages

  • Socioeconomic status of various locations.
  • Different trusts have different access to primary care - different primary intervention, some are better than others.
  • Some areas have older populations, which may lead to more complications post-surgery.
  • Not a direct measure of performance.
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7
Q

What factors may be important in interpreting publicly available indicators?

A
  • Location - services available.
  • Budget.
  • Some variation is normal - even if all healthcare was uniform there will always be random variation in mortality rates across hospitals as each patient is unique.
  • Needs to be adjusted for confounders - age in elderly population will have higher mortality rates.
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8
Q

How would you explain publicly available indicators to a patient?

A
  • Indicators for each trust shows ‘performance’ but they need to be taken with a pinch of salt.
  • Can be used to compare other trusts.
  • Points out areas that need improvement.
  • BUT, have to look at it from the context of hospital itself - budget, population, not a direct measure of performance.
  • Available to the public.
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9
Q

Outline the ethnic and gender differences in health and healthcare in IHD

A
  • South Asians have increased risk of strokes.
  • Afro-Caribbean have higher risk of HTN and T2D (risk factors for ACS).
  • Oestrogen have protective effect (females).
  • Culture - foods.
  • Socioeconomic class - less obesity in developing countries as most people cannot afford it.
  • Social norms - in some areas, being fat shows wealth.
  • Differences in health seeking behaviour - native cultures might make them less inclined to see a doctor.
  • Inaccessible due to language barrier.
  • Discrimination - inverse care law.
  • Smoking prevalence and decreased exercise levels in Bangladeshi populations.
  • Migration and globalisation have changed patterns (Western diets).
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10
Q

List the major risk factors contributing to incidence of CVD

A

Modifiable

  • HTN
  • Smoking - increases by 50%.
  • Diabetes.
  • Total cholesterol + HDL:LDL ratio. Hyperlipidaemia.
  • Obesity/lack of exercise.
  • Heavy alcohol consumption.

Non-modifiable

  • Age.
  • Male sex.
  • FMHx.
  • Ethnicity.
  • Socioeconomic class.
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11
Q

Explain the difference between primary, secondary and tertiary prevention of CVD

A

Primary: before onset of disease, stopping it from developing in the first place:

  • Smoking cessation.
  • Eating healthy.
  • Exercise.
  • Weight loss.
  • Reduced alcohol consumption.

Secondary: preventing disease progression or any adverse events once disease has developed:

  • Smoking cessation.
  • Hypertension management.
  • Lipid lowering therapy.
  • Aspirin.

Tertiary: reducing impact of already existing disease:

  • Revascularization e.g. PCI, CABG
  • Cardiac rehabilitation.
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12
Q

Define prevention paradox

A
  • A preventative measure that brings large benefits to the community but offers little to each participating individual.
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13
Q

Outline the pros and cons of high risk prevention strategies vs. population prevention strategies

A

High risk strategy:

  • Pros: appropriate intervention, cost-effective use of resources, favourable benefit : risk ratio.
  • Cons: cost/difficulty of screening, limited potential for change in the population.

Population strategy:

  • Pros: large potential for change, radical.
  • Cons: small benefit to the individual, little motivation for patients, questionable benefit : risk ratio i.e. prevention paradox.
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14
Q

Outline a strategy to reduce CVD in the local community

A

Strategy - set of choices and principles to support achievement of long term goals.

NATIONAL CVD PREVENTION PROGRAMME

  • Improving and increasing early detection and treatment of CVD.
  • Rapid treatment of those with high risk conditions.
  • Expanding access for genetic testing for familial hypercholesterolaemia.
  • Commissioning a new National CVD prevention audit for primary care called CVDPrevent. It will support primary care in understanding how many patients with high-risk conditions are potentially under diagnosed, under treated or over treated.
  • Improve response of public to somebody having a cardiac arrest out of hospital and build defibrillator networks.
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15
Q

Describe the results of the two important studies in establishing cardiac risk factors

A

Framingham Heart Study - data used to create risk predictors:

  • Cohort chart = works out 10 year risk of stoke/MI.
  • These predictors tend to under-estimate risk in low risk population & over-estimate in high risk.
  • Also fail to take into account other risk factors e.g. ethnicity (e.g. higher risk in South-East Asian) & socioeconomic status.
  • These only suggest risk in average patient, cannot predict what will happen. Used with clinical judgement to decide when prevention is indicated = this includes consideration for ethnicity etc.
  • Also important to apply these to age, as this is the biggest risk factor & some patients, who are healthy at that age are still considered high risk & treated = medicalization normal ageing risk.
  • QRISK measures more risk factors – uses UK GP data.

INTERHEART study:

  • 5 main risk factors: abnormal lipids, diabetes, smoking, hypertension, lack of exercise.
  • Created by looking at the population with risk factors and without risk factors.
  • Good to show patient how their risk would alter if they quit smoking for example.
  • Role: illustrates visuality to patient —> red = bad.
  • Informs clinician on who to treat/emphasis which risk factors are important.
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16
Q

Describe the epidemiology of CVD in UK

A
  • Decreasing mortality but still the most common cause of death.
  • Highest prevalence’s in North England, Central Scotland, South Wales - correlated to social class & these areas are most deprived.
  • Lowest seen in South England.
  • Partly related to access to HC, more related to education about risk factors.
  • South-East Asian origin in UK has 50% higher risk of CHD.
  • Bangladeshis are the subgroups with the worst outcomes.
  • Black individuals of West African and African origin in the UK have an ischemic heart disease risk half of the European UK population, but have a higher (double) incidence of CVA, especially in men.
17
Q

Outline benefits of smoking cessation

A
  • Decreases risk of ACS.
  • Risk of lung cancer halved after 10 years.
18
Q

List the stop smoking campaigns

A
  • Education in school & to patient.
  • Tobacco TV & printed adverts banned.
  • Taxes higher to deter.
  • Adverts on cigarette packets about risks.
  • Age restriction.
  • Smoking banned in public enclosed places.
  • Mass-media campaigns about benefits.
  • Wider access to smoking cessation services.
19
Q

What is the gold standard treatment for smoking cessation?

A

Pharmacotherapy e.g. nicotine replacement and counselling.

20
Q

Outline the exercise guidelines

A
  • 150 minutes of moderate intensity exercise a week.
  • 2x muscle strengthening activity per week.
  • Balance & co-ordination 2x a week in elderly.
21
Q

How would you assess for end organ damage in patients with hypertension?

A

Urine ACR, fundoscopy, ECG.

22
Q

What are the current recommended BP target levels?

A

Elderly (<80) <140/<90
CKD <140/<90
Diabetes <130 /<80
Over 80s <150 with no recommendation in diastolic

23
Q

List the precipitants of asthmatic attacks

A
  • Cold air.
  • Exercise.
  • Emotion.
  • Allergies - house dust mite, pollen, fur.
  • Infection.
  • Smoking.
  • Passive smoking.
  • Pollution.
  • NSAIDs.
  • BBs - contraindicated as it causes bronchospasms.
24
Q

Describe the occupational exposures of lung disease

A
  • Asbestos - roofers/plumbers.
  • Coal - miners.
  • Aspergillus - malt worker, farmer.
  • Cigarette smoke - bar work.
  • Radiation - radiographer.
  • Silica - metal mining, pottery manufacture.
  • Arsenic - paint factory.
  • If symptoms remit at weekends or holidays, work may provide the trigger.
  • Paint sprayers, food processors, welders, animal handlers, bakers.
  • Ask the patient to measure their peak flow at intervals at work and at home - at the same time of the day to confirm.
25
Q

Identify patients who should be considered for prophylaxis of DVT and describe the initial measures for prevention

A
  • Mechanical methods: anti-embolic compression stockings.
  • Pharmacological: LMWH.
  • Give heparin to all imboile patients and those at high risk: immobilisation > 3 days, recent surgery within 28 days, active malignancy, age > 60, obesity, severe medical comorbidities (HD, metabolic, endocrine, inflammatory conditions), personal Hx or 1st degree FMHx of VTE, use of HRT or oestrogen containing contraceptive therapy, varicose veins with phlebitis, critical care admission or dehydration.
26
Q

Describe the key aspects of TB control

A
  • Increase awareness of those working in high risk areas.
  • Effective surveillance to monitor disease + outbreaks.
  • Prompt ID + treatment.
  • Ensure people complete treatment (compliance an issue).
  • Targeted prevention – BCG vaccine.
  • Screening for ↑ risk groups (CXR) entering the UK.
  • Focus on key populations: migrants, deprived urban communities.
27
Q

Describe the approaches in place to prevent TB

A
  • BCG vaccine effective at reducing morbidity and mortality in children but less useful in prevention of adult respiratory disease.
  • BCG vaccine given to some neonates if their parents or grandparents were born in a country of high risk for TB, or if they live in high risk TB area themselves (certain areas of London).
  • Occupational or travel risk UK citizens, immigrants under 16 and those emigrating to high risk areas are also vaccinated with BCG.
  • The vaccine is live so should not be given to HIV+ patients, pregnant women or to anyone who has already had it / tuberculin+ (all patient should have tuberculin test before getting vaccination).
  • Key concept: increasing herd immunity will decrease population prevalence.
28
Q

What approaches are there for limiting the impact of drug-resistant TB?

A
  • Educate patient/observe taking drugs - ensure complete antibiotic course/adherence to treatment.
  • Trace where contact came from.
  • Screen people immigrating to UK.
  • Sputum culture to find drug sensitivities —> don’t allow strains to develop more severe resistance.
  • Standardised recording and reporting system.
  • NAAT for drug resistance should be requested for all patients with risk factors for drug resistance: previous TB treatment, contact with drug resistant dx, from a country with high rates of drug resistance.
29
Q

How do the priorities for TB control vary internationally?

A

UK PRIORITIES

  • Screening new entrants (CXR).
  • Vaccinating at risk populations.
  • ID & educate high risk groups.
  • Contain outbreaks by contact tracing.
  • Treat asymptomatic contacts.
  • TB is a notifiable disease & there is a legal responsibility to notify the health authorities.

WHO INTERNATIONAL OBJECTIVES

  • Achieve universal high-quality care for all with TB.
  • Reduce human suffering & socioeconomic burden associated with TB.
  • Protect vulnerable populations from TB.
  • Protect & promote human rights in TB prevention, care & control.
  • Support development of new tools.
30
Q

Describe the epidemiology of lung cancer

A
  • Lung cancer is the most common cause of cancer death in the UK - 22% of all cancer deaths.
  • Mortality rates are decreasing for men but increasing for women - increase in women teenage smokers.
  • Peak incidence is 50 for men and 60 for women.
  • Rare < 25 year olds.
  • More common in men.
31
Q

List the risk factors associated with the development of lung cancer

A
  • Cigarette smoking is directly related to development of lung cancer.
  • Others: exposure to dust, coal, tar, ionising radiation, radon gas, asbestosis, chromium, arsenic, iron oxides, and FMHx.
32
Q

Describe the Framingham Risk tool

A
  • Used the estimates from sex-specific models to develop a risk scoring system.
  • A patient gets a number of points for each measurement and the sum determines their risk group.
  • Their personal risk group can then be compared to the average for their age and sex and treatment decisions made.
33
Q

List the main risk factors used in QRISK tool

A

Age, sex, cholesterol/HDL ratio, blood pressure, diabetes and smoking status.