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Explore the structure and function of the heart, blood vessels, and blood in the circulatory system. Learn about anemia, embolism, thrombus, vascular disorders, and heart conditions. Discover how massage can support or impair circulatory system function.
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A Massage Therapist’s Guide to Pathology 5e Chapter Five Circulatory System Conditions
Chapter 5 Introduction • General Function: the Circulatory System • Delivers nutrients, fuel, • Delivers oxygen • Removes wastes • Maintains temperature • Clotting • Protection from pathogens • Chemical balance • Massage can support or impair this function
Chapter 5 Introduction, cont. • Structure and Function: the Heart • Septum divide L/R • Right side pumps to pulmonary circuit • Left side pumps to systemic circuit • AV valves divide into top and bottom halves • Atria, ventricles • “lub-dup” is closing of AV and semilunar valves • Ventricles work harder than atria • Implications for seriousness of heart attacks
Chapter 5 Introduction, cont. • Structure and Function: Blood Vessels • Aorta → arteries → arterioles → capillaries → venules → veins → vena cava → heart • Closed system: platelets and RBCs should not be able to leave • 60,000 miles of vessels • 3-ply construction of veins and arteries: • Tunica intima (endothelium) • Tunica media (smooth muscle) • Tunica externa/ adventitia (connective tissue) • Capillaries are simple squamous epithelium: excellent for permeability
Chapter 5 Introduction, cont. Structure and Function: the Blood • Red blood cells (erythrocytes) • Born in bone marrow • Production stimulated by EPO from kidneys • 98% of all blood cells • Lifespan = 4 months • Dead RBCs removed by spleen • Turnover: 2 million/second • No nuclei, lots of hemoglobin (iron-based) • 5 million per mm3 • Biconcave discs: all identical, smooth and flexible
Chapter 5 Introduction, cont. • White blood cells (leukocytes) • Translucent • Different types for different functions • Neutrophils, basophils, eosinophils, monocytes, lymphocytes
Chapter 5 Introduction, cont. • Platelets (thrombocytes) • Fragments of larger cells (megakaryocytes) • Smooth until stimulated, then spiky, sticky • Release chemicals that weave fibrin • Make thrombi, crusts
Chapter 5 Introduction, cont. • Blood Disorders • Anemia • Embolism, thrombus • Hemophilia • Leukemia • Myeloma • Sickle cell disease • Thrombophlebitis, deep vein thrombosis
Chapter 5 Introduction, cont. • Vascular Disorders • Aneurysm • Atherosclerosis • Hypertension • Raynaud syndrome • Varicose veins • Heart Conditions • Heart attack • Heart failure
Anemia • Definition: • Insufficient 02 carrying capacity • Often a symptom or complication rather than freestanding problem
Anemia, cont. • Etiology: what happens? • Either a shortage of RBCs or a shortage of hemoglobin • Leads to low O2 carrying capacity • Process depends on type of anemia
Anemia, cont. Types of anemia • Idiopathic a.: • May be due to poor nutritional uptake due to stress or other factors
Anemia, cont. Types of anemia • Nutritional a.: • Something vital is missing from the diet: • iron • folic acid • vitamin B12 • Can lead to pernicious anemia, brain damage • Copper, protein, some others…
Anemia, cont. Types of anemia • Hemorrhagic a.: • From blood loss • Trauma (acute) • Slow leak (chronic) • Ulcers, kidney disease, heavy menstruation
Anemia, cont. Types of anemia • Hemolytic a.: • Premature destruction of RBCs • Splenomegaly, jaundice may also be present • Reticulocytes (immature RBCs) increase
Anemia, cont. Types of anemia • Aplastic a.: • Bone marrow is not functioning • All blood cells are affected • Can be autoimmune, renal failure, folic acid deficiency, viral, exposure to radiation… • Myelodysplastic anemia: bone marrow makes non-functioning cells: risk of leukemia, myeloma
Anemia, cont. Types of anemia • Secondary a.: • Due to underlying cause: • Ulcers • Kidney disease • Hepatitis • Acute infection • Blood cancer
Anemia, cont. • Signs and Symptoms: • Fatigue • Pallor • Dyspnea, rapid breathing • Rapid heartbeat • Intolerance to cold • Heart problems
Anemia, cont. • Treatment: • Depends on underlying cause • Medication • Transfusion, stem cell implants, other strategies • Medications: • Oral, injected nutritional supplements • Steroidal anti-inflammatories for autoimmune disease • Synthetic EPO to boost RBC production
Anemia, cont. • Massage • Risks: Anemia can be part of other diseases that contraindicate massage. Anything that compromises sensation (pernicious anemia) or that is related to infection or cancer requires special adaptation for bodywork. • Benefits: Massage may help with fatigue, but probably makes no changes in blood cell production or nutrition. A client who manages anemia and can adapt to the changes that massage brings about is a good candidate for bodywork.
Embolism, thrombus • Definition: • Embolism: traveling clot • Thrombus: lodged clot
Embolism, thrombus, cont. • Etiology: what happens? • Platelets flow through circulatory system; activated by any rough spot or inflammatory chemicals • Clots form at sites of damage, areas of slow, irregular blood flow • Clots are constantly forming and melting • Sometime pro-clotting mechanism is stronger than anti-clotting • Clots may stay in place (thrombi) or fragment and travel (emboli) • Emboli travel until vessel is too small to pass through
Embolism, thrombus, cont. Types of embolism, thrombus • Venous thrombosis: see thrombophlebitis, deep vein thrombosis
Embolism, thrombus, cont. Types of embolism, thrombus • Pulmonary embolism: • From a clot that forms on venous side of systemic circuit: fragments and travels to lungs • Often related to deep vein thrombosis, complications of trauma, orthopedic surgery • Risk factors: • Other cardiovascular disease • Pregnancy • Overweight • Smoking • Hormone supplements
Embolism, thrombus, cont. Types of Types of embolism, thrombus • Arterial thrombus: • Complication of atherosclerosis • Made worse with chronic inflammation, stress • Clots can grow on site to occlude the artery or they can fragment and travel (= embolism)
Embolism, thrombus, cont. Types of embolism, thrombus • Arterial embolism: • Complication of atherosclerosis, atrial fibrillation, rheumatic heart disease • Often made of clotted blood, can be other debris • Brain, coronary arteries, kidneys, legs are most common sites; damaged tissue is infarction
Embolism, thrombus, cont. • Signs and Symptoms: • May be silent • PE: • Dyspnea, hemoptysis, lightheadedness, chest pain, sweating • Arterial embolism: • Sharp, tingling pain, tissue damage and death
Embolism, thrombus, cont. • Treatment: • Medications • Surgery • Supplement O2 if necessary • Compression stockings • Medications: • Antiplatelet drugs • Anticoagulants • Thrombolytics
Embolism, thrombus, cont. • Massage • Risks: A client with a tendency to form clots may not be able to adapt to mechanical types of bodywork; whether the risk is local or systemic depends on the type of bodywork. • Benefits: Non-mechanical forms of bodywork may be soothing and supportive for clients at risk for embolism or thrombus. Clients with a history of problems but no lingering problems can enjoy massage with no cautions.
Hemophilia • Definition: • Genetic disorder: • Usually x-linked • Absence of various clotting factors
Hemophilia, cont. • Etiology: what happens? • 12 distinct clotting factors help form clots • Person with hemophilia has difficulty forming solid, long-lasting clots because of clotting factor insufficiency • Don’t bleed faster, do bleed longer than others • Rated as mild, moderate, severe • Severe hemophilia = 60% of diagnoses; <1% normal clotting factors • Usually an x-linked genetic mutation • Carried by mothers, passed on to sons
Hemophilia, cont. • Complications: • Leading COD in children with hemophilia is intracranial bleeding • Bleeding into joint capsules with inflammation and extensive damage: • Hemophiliac arthritis • Muscle and nerve damage • Compartment syndrome, contracture • Infected blood products
Hemophilia, cont. Types of hemophilia • Type A: • Most common form, about 80% of all cases • Deficiency of clotting factor VIII
Hemophilia, cont. Types of hemophilia • Type B: • AKA Christmas disease • Insufficient Factor IX • About 15% of cases
Hemophilia, cont. Types of hemophilia • Von Willebrand disease: • Dysfunction of von Willebrand factor • Helps Factor VIII • Genetic mutation, ranges in severity • Not x-linked; men and women affected equally
Hemophilia, cont. • Signs and Symptoms: • Signs at birth: umbilical cord bleeds excessively • Early childhood: infant/toddler accidents • Bruising, hematomas, nosebleeds, hematuria, joint pain from bleeds into capsule • Can be from trauma or spontaneous
Hemophilia, cont. • Treatment: • Supplement clotting factors • Can be done at home now, prophylactically or after injury • Careful exercise, weight control • Medications: • Concentrated clotting factors • Recombinant clotting factors • Desmopressing to promote clotting factor production • Antifibrinolytics to slow clot breakdown
Hemophilia, cont. • Massage • Risks: Severe hemophilia contraindicates rigorous bodywork or anything that might cause bruising. Consult with client and health care team for other cautions. • Benefits: Gentle or energetic massage can help with pain and stress. For milder cases massage that fits within the limitations of the tissues to avoid bruising is appropriate
Leukemia • Definition: • “White blood”: • Cancer of bone marrow • Overlap between leukemia and lymphoma • 38,000 diagnoses in US/year • 200,000 survivors alive today
Leukemia, cont. • Etiology: what happens? • Myeloid or lymphoid cells make most WBCs in bone marrow • Leukemia happens when mutation leads to production of non-functioning WBCs • Can be acute (aggressive) or chronic (slow-growing) • Usually acquired (not inherited) genetic mutations • Exposure to toxins, radiation • Untreated disease leads to death from excessive bleeding, infection
Leukemia, cont. Types of leukemia • Acute myelogenous leukemia (AML): • Aggressive cancer of meyloid cells • Mostly in people 65+ • Linked to exposure to… • Radiation • Chemo for other cancers • Benzene • Can form tumors outside marrow