Signs andSymptoms of CardioVascular diseases.pptx

RamishRiaz 28 views 65 slides Sep 02, 2024
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About This Presentation

Signs & Symptoms


Slide Content

Cardiology Dr. Ramish Riaz Assistant Professor, HOD MIT FRAHS, Riphah International University

Anatomy

Physiology

Cardiac Cycle The cardiac cycle diagram depicts changes in: Aortic pressure (AP) Left ventricular pressure (LVP) Left atrial pressure (LAP) Left ventricular volume (LV Vol ) Heart sounds during a single cycle of cardiac contraction and relaxation. These changes are related in time to the electrocardiogram

Cardiac output is the volume of blood pumped by the heart in one minute. It is calculated by multiplying the number of heart contractions that occur per minute (heart rate) times the stroke volume (the volume of blood pumped into the aorta per contraction of the left ventricle). Therefore, cardiac output can be increased by increasing heart rate, as when exercising. However, cardiac output can also be increased by increasing stroke volume, such as if the heart were to contract with greater strength. Stroke volume can also be increased by speeding blood circulation through the body so that more blood enters the heart between contractions.

Chapter 18, Cardiovascular System CORONARY CIRCULATION: ARTERIAL SUPPLY Figure 18.7a

https://www.youtube.com/watch?v=RYZ4daFwMa8

PRESENTING PROBLEMS IN CARDIOVASCULAR DISEASE

CVS Diseases Cardiovascular disease gives rise to a relatively limited range of symptoms. Differential diagnosis depends on careful analysis of the factors that provoke symptoms, the subtle differences in how they are described by the patient, the clinical findings and appropriate investigations. A close relationship between symptoms and exercise is the hallmark of heart disease.

The New York Heart Association (NYHA) functional classification is used to grade disability:

CHEST PAIN

Chest pain Chest pain is a common presentation of cardiac disease but can also be a manifestation of anxiety or disease of the lungs or musculoskeletal or gastrointestinal systems. Some patients deny ‘pain’ in favour of ‘discomfort’ but the significance remains the same.

- Site: Cardiac pain is typically located in the centre of the chest because of the derivation of the nerve supply to the heart and mediastinum .

- Radiation: Ischaemic cardiac pain may radiate to the neck, jaw, and upper or even lower arms. Occasionally, cardiac pain may be experienced only at the sites of radiation or in the back. Pain situated over the left anterior chest and radiating laterally is unlikely to be due to cardiac ischaemia and may have many causes including pleural or lung disorders, musculoskeletal problems and anxiety.

- Character: Several key characteristics help to distinguish cardiac pain from that of other causes. Cardiac pain is typically dull, constricting, choking or ‘heavy’, and is usually described as squeezing, crushing, burning or aching but not sharp, stabbing, pricking or knife-like. The sensation can be described as breathlessness. Patients often emphasise that it is a discomfort rather than a pain. They typically use characteristic hand gestures (e.g. open hand or clenched fist) when describing ischaemic pain.

Diagnosis may be difficult and it is helpful to classify pain as possible, probable or definite ischaemic cardiac pain, based on the balance of evidence, as in this figure:

- Provocation: Anginal pain occurs during (not after) exertion and is promptly relieved (in less than 5 minutes) by rest. The pain may also be precipitated or exacerbated by emotion but tends to occur more readily during exertion, after a large meal or in a cold wind. In crescendo or unstable angina, similar pain may be precipitated by minimal exertion or at rest. The increase in venous return or preload induced by lying down may also be sufficient to provoke pain in vulnerable patients (decubitus angina).

The pain of MI may be preceded by a period of stable or unstable angina but may occur de novo. In contrast, pleural or pericardial pain is usually described as a ‘sharp’ or ‘catching’ sensation that is exacerbated by breathing, coughing or movement. Pain associated with a specific movement (bending, stretching, turning) is likely to be musculoskeletal in origin.

- Onset: The pain of MI typically takes several minutes or even longer to develop; similarly, angina builds up gradually in proportion to the intensity of exertion. Pain that occurs after rather than during exertion is usually musculoskeletal or psychological in origin. The pain of aortic dissection, massive pulmonary embolism or pneumothorax is usually very sudden or instantaneous in onset.

- Associated features: The pain of MI, massive pulmonary embolism or aortic dissection is often accompanied by autonomic disturbance including sweating, nausea and vomiting. Breathlessness, due to pulmonary congestion arising from transient ischaemic left ventricular dysfunction, is often a prominent and occasionally the dominant feature of MI or angina (angina equivalent).

Breathlessness may also accompany any of the respiratory causes of chest pain and can be associated with cough, wheeze or other respiratory symptoms. Classical gastrointestinal symptoms, such as oesophageal reflux, oesophagitis , peptic ulceration or biliary disease, may indicate noncardiac chest pain but effort-related ‘indigestion’ is usually due to heart disease.

Differential diagnosis of chest pain

:- Psychological aspects of chest pain Emotional distress is a common cause of atypical chest pain. This diagnosis should be considered if there are features of anxiety and the pain lacks a predictable relationship with exercise. However, the prospect of heart disease is a frightening experience, particularly when it has been responsible for the death of a close friend or relative; psychological and organic features therefore often coexist. Anxiety may amplify the effects of organic disease and can create a very confusing picture. Patients who believe they are suffering from heart disease are sometimes afraid to take exercise and this may make it difficult to establish their true effort tolerance; assessment may also be complicated by the impact of physical deconditioning.

- Myocarditis and pericarditis : Pain is characteristically felt retrosternally , to the left of the sternum, or in the left or right shoulder, and typically varies in intensity with movement and the phase of respiration. The pain is usually described as ‘sharp’ and may ‘catch’ the patient during inspiration, coughing or lying flat; there is occasionally a history of a prodromal viral illness. :-Aortic dissection This pain is severe, sharp and tearing, is often felt in or penetrating through to the back, and is typically very abrupt in onset. The pain follows the path of the dissection.

- Oesophageal pain: This can mimic the pain of angina very closely, is sometimes precipitated by exercise and may be relieved by nitrates. However, it is usually possible to elicit a history relating chest pain to supine posture or eating, drinking or oesophageal reflux. It often radiates to the back. :-Bronchospasm: Patients with reversible airways obstruction, such as asthma, may describe exertional chest tightness that is relieved by rest. This may be difficult to distinguish from ischaemic chest tightness. Bronchospasm may be associated with wheeze, atopy and cough.

-Musculoskeletal chest pain: This is a common problem that is very variable in site and intensity but does not usually fall into any of the patterns described above. The pain may vary with posture or movement of the upper body and is sometimes accompanied by local tenderness over a rib or costal cartilage. There are numerous causes, including arthritis, costochondritis, intercostal muscle injury and Coxsackie viral infection (epidemic myalgia or Bornholm disease). Many minor soft tissue injuries are related to everyday activities such as driving, manual work and sport.

Dyspnea Awareness of breathing Normal on exercise May be caused cardiac, respiratory, metabolic conditions, anxiety Cardiac patients develop dyspnea because of fluid accumulation in the alveoli

Dyspnoea of cardiac origin may vary in severity from an uncomfortable awareness of breathing to a frightening sensation of ‘fighting for breath’. The sensation of dyspnoea originates in the cerebral cortex.

Orthopnoea Dyspnea on lying flat relieved by sitting Lying flat increases venous return to the heart Can be graded by the number of pillows

Paroxysmal Nocturnal Dyspnea Sudden breathlessness which wakes the patient from sleep choking or gasping air Caused by gradual accumulation of alveolar fluid during sleep Patients may sit on the edge of the bed and open windows in an attempt to relieve their distress. Cough with frothy blood stained sputum Chest wheezes

- Cheyne –Stokes respiration: This cyclical pattern of respiration is due to impaired responsiveness of the respiratory centre to carbon dioxide and occurs in severe left ventricular failure. The pattern of slowly diminishing respiration, leading to apnoea , followed by progressively increasing respiration and hyperventilation, may be accompanied by a sensation of breathlessness and panic during the period of hyperventilation.

There are several causes of cardiac dyspnoea : acute left heart failure, chronic heart failure, arrhythmia and angina equivalent.

Pathophysiology (Pulmonary Edema) When anyone lies flat, gravity causes redistribution of fluid in the body. Fluid from legs and abdomen move into chest area. This fluid redistribution is minor and normally te person don’t feel any shortness of breath. Patients with congestive cardiac failure have excess fluid in their body. When this excess fluid is redistributed in body, the weakened heart is unable to perform additional work. Leading to accumulation of fluid in lungs. Pulmonary congestion, pulmonary edema.

Types of pulmonary edema Cardiogenic pulmonary edema (CPE) Non cardiogenic pulmonary edema(ARDS) High altitude pulmonary edema(HAPE)

Cardiogenic pulmonary edema causes Ischemic heart disease Cardiomyopathy Valvular heart disease

Non cardiogenic pulmonary edema causes

Presyncope is episode of lost consciousness with or without falling down due to reduced cerebral perfusion.
Syncope is loss of consciousness due to loss of cerebral perfusion.

Differentials of syncope

Pathophysiology of syncope

Syncope vs seizure FEATURE SEIZURE SYNCOPE AURA ( e.g olfactory) + _ CYANOSIS + _ TONGUE BITING + - / + POST ICTAL CONFUSION + _ POST ICTAL AMNESIA + _ POST ICTAL HEADACHE + _ RAPID RECOVERY _ +

LOWER LIMB EDEMA Caused by systemic venous congestion Dependent edema, lower limbs and sacral Bilateral pitting edema

Differential diagnosis of bilateral LL edema Congestive heart failure Nephrotic syndrome Liver cirrhosis Renal failure

ABDOMINAL DISTENSION Ascites secondary to systemic venous congestion Occurs before edema in TR

Palpitation

PALPITATION Awareness of heart beats Change in the rate or the rhythm Check onset, duration, relation to exertion, irregularities Normal during exercise, anxiety, coffee, nicotine

General examination Look at the patient’s general appearance . Do they look unwell, frightened or distressed ? Are there any signs of breathlessness or cyanosis ? Is the patient overweight or cachectic ? Are there any features of conditions associated with cardiovascular disease such as Marfan’s, Down’s or Turner’s syndrome, or ankylosing spondylitis ?

What is precordium? The Precordium- This is the area on the front of the chest that relates to the surface anatomy of the heart. Inspect the precordium with the patient sitting at 45 degree angle with shoulders horizontal.

General Examination General features Eyes Face Praecordium Ankles

Hands Clubbing Splinter Haemorrhages Oslers nodes Janeway lesions

petechiae

oslers nodes
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