University of Hail College of Nursing Medical-Surgical Nursing Adult Health Nursing 1 T NURS 225 Chapter 30 Assessment and Management of Patients With Vascular Disorders and Problems of Peripheral Circulation Dr. Laila, A. Hamed LEARNING OBJECTIVES On completion of this chapter, the learner will be able to: Identify anatomic and physiologic factors that affect peripheral blood flow and tissue oxygenation. Use assessment parameters appropriate for determining the status of peripheral circulation. Apply the nursing process as a framework of care for patients with vascular insufficiency of the extremities. Compare the various diseases of the arteries and their causes, pathophysiologic changes, clinical manifestations, management, and prevention. Describe the prevention and management of venous thromboembolism (VTE). Compare strategies to prevent and treat venous insufficiency, leg ulcers, and varicose veins. Use the nursing process as a framework of care for patients with leg ulcers. Describe the medical and nursing management of lymphatic disorders. Vascular System • Consists of two interdependent systems – Right side of the heart pumps blood through the lungs to the pulmonary circulation – Left side of the heart pumps blood to all other body tissues through the systemic circulation • Arteries and arterioles. • Capillaries. • Veins and venules. • Lymphatic vessels (complex network of thin-walled vessels ). This network collects lymphatic fluid from tissues and organs and transports the fluid to the venous circulation) Copyright © 2018 Wolters Kluwer · All Rights Reserved Systemic and Pulmonary Circulation Copyright © 2018 Wolters Kluwer · All Rights Reserved Function of the Vascular System • Circulatory needs of tissues from blood. • Maintain Blood flow • Maintain Blood pressure • Capillary filtration and reabsorption • Maintain Hemodynamic resistance • Peripheral vascular regulating mechanisms Copyright © 2018 Wolters Kluwer · All Rights Reserved Pathophysiology of the Vascular System • Pump failure (Inadequate peripheral blood flow occurs when the heart’s pumping action becomes inefficient) • Alterations in blood and lymphatic vessels • Circulatory insufficiency of the extremities (produce some of the same symptoms: pain, skin changes, diminished pulse, and possible edema.) Copyright © 2018 Wolters Kluwer · All Rights Reserved Assessment of the Vascular System • Age: produces changes in the walls of the blood vessels that affect the transport of oxygen and nutrients to the tissues • Health history about: pain and its precipitating factors. A muscular, cramp-type pain, discomfort, or fatigue in the extremities. • Physical assessment – Inspection of the Skin: cool, pale, pallor, rubor, loss of hair, brittle nails, dry or scaling skin, atrophy, and ulcerations) – Palpation of Pulses Copyright © 2018 Wolters Kluwer · All Rights Reserved Diagnostic Evaluation • Exercise testing: used to determine how long a patient can walk and to measure the ankle systolic blood pressure in response to walking. • Duplex ultrasonography: Color flow techniques, which can identify vessels • Computed tomography scanning, Magnetic resonance angiography • Angiography: used to confirm the diagnosis of occlusive arterial disease when surgery or other interventions are considered. It involves injecting a radiopaque contrast agent directly into the arterial system to visualize the vessels. • Contrast phlebography (venography) • Lymphoscintigraphy: injection of a radioactively labeled colloid subcutaneously in the second interdigital space. The extremity is then exercised to facilitate the uptake of the colloid by the lymphatic system, and serial images are obtained at preset intervals. Copyright © 2018 Wolters Kluwer · All Rights Reserved Continuous-wave Doppler ultrasound detects blood flow, combined with computation of ankle or arm pressures; this diagnostic technique helps characterize the nature of peripheral vascular disease Doppler ultrasound flow studies Ankle brachial index (ABI): is the ratio of the systolic blood pressure in the ankle to the systolic blood pressure in the arm Copyright © 2018 Wolters Kluwer · All Rights Reserved Common Arterial Disorders • Peripheral arterial occlusive disease • Arteriosclerosis and atherosclerosis • Upper extremity arterial occlusive disease • Aortoiliac disease • Aneurysms (thoracic, abdominal, other) • Dissecting aorta • Arterial embolism and arterial thrombosis • Raynaud phenomenon and other acrosyndromes Copyright © 2018 Wolters Kluwer · All Rights Reserved Peripheral Arterial Occlusive Disease (PAD) Peripheral arterial disease (PAD) is a common condition where a build-up of fatty deposits in the arteries restricts blood supply to leg muscles. This condition known as intermittent claudication Causes of intermittent claudication: A bulging artery (aneurysm). peripheral neuropathy. Narrowed spinal canal. Risk factors: Age: a man over age 55 or a woman over age 60. Obesity. Lack of exercise regularly Family history of claudication , atherosclerosis or peripheral artery disease diabetes, high blood pressure, or high cholesterol Smoke Copyright © 2018 Wolters Kluwer · All Rights Reserved Intermittent Claudication Symptoms • • • • • • • • • • Cramping Numbness Pain Tingling Weakness shiny skin on leg or foot Cold feet Foot sores Hair loss on your leg Impotence in men: Weak arms or legs. • • • • Diagnosis Ankle-brachial index (ABI).. Ultrasound. magnetic resonance angiography (MRI) Computed tomography angiography (CTA) scan Copyright © 2018 Wolters Kluwer · All Rights Reserved Claudication Treatment • Lifestyle changes, such as: Stop smoking, reduce weight. • Eat a healthy diet, A regular walking routine • control high blood pressure, high cholesterol, or diabetes. • Surgery to clear a blood vessel from clot may use angioplasty (in which they put a thin tube into your blood vessel to widen it) or a stent (in which they prop open a narrowed vessel with a tube). • Bypass surgery to go around the blocked area. Copyright © 2018 Wolters Kluwer · All Rights Reserved Nursing intervention for Improving Peripheral Arterial Circulation Provide health education about: • Don’t eat foods with saturated fats. • Don’t smoke or use tobacco. • Get more physical activity. • Follow-up cholesterol, blood sugar, and blood pressure. • Stay at a healthy weight. Copyright © 2018 Wolters Kluwer · All Rights Reserved Arteriosclerosis and Atherosclerosis • Arteriosclerosis: (hardening of the arteries) i.e: muscle fibers and the endothelial lining of the walls of small arteries and arterioles become thickened. • Atherosclerosis: Accumulation of lipids, calcium, blood components, carbohydrates, and fibrous tissue on the intimal layer of the artery and formation of Atheroma or plaques. Copyright © 2018 Wolters Kluwer · All Rights Reserved Common Sites of Atherosclerotic Obstruction Copyright © 2018 Wolters Kluwer · All Rights Reserved Risk Factors for Atherosclerosis and PVD Modifiable Nonmodifiable • Nicotine, un healthy fatty diet • Age • Hypertension • Gender • Familial predisposition and genetics • Diabetes • Obesity • Stress • Sedentary lifestyle • Increased C-reactive protein • Hyperhomocysteinemia Copyright © 2018 Wolters Kluwer · All Rights Reserved Clinical Manifestations of Atherosclerosis According to the site: • Coronary artery disease: cause chest pain (angina), a heart attack or heart failure. • Carotid artery disease: narrows the arteries close to brain that cause a transient ischemic attack (TIA) or stroke, numbness or weakness in arms or legs, difficulty speaking or slurred speech, temporary loss of vision in one eye, or drooping muscles in your face • Peripheral artery disease: narrows the arteries in arms or legs result in Pain, numbness, . • Aneurysms. is a bulge in the wall of the artery. • Symptoms of kidney Failure. Copyright © 2018 Wolters Kluwer · All Rights Reserved Medical Management • • • • • • • Preventive measures: Quitting smoking Eating healthy foods Exercising regularly Maintaining a healthy weight Checking and maintaining a healthy blood pressure Checking and maintaining healthy cholesterol and blood sugar levels • surgical graft procedures: inflow procedures, which improve blood supply from the aorta into the femoral artery, and outflow procedures, which provide blood supply to vessels below the femoral artery. • Radiologic Interventions: arteriogram (percutaneous transluminal angioplasty (PTA) using a balloon-tipped catheter ). Copyright © 2018 Wolters Kluwer · All Rights Reserved Question The nurse is teaching a patient diagnosed with peripheral arterial disease (PAD). What should be included in the teaching plan? A. Elevate the lower extremities B. Exercise is discouraged C. Keep the lower extremities in a neutral or dependent position D. PAD should not cause pain Answer: C. Keep the lower extremities in a neutral or dependent position Rationale: For patients with PAD, blood flow to the lower extremities needs to be enhanced; therefore, the nurse encourages keeping the lower extremities in a neutral or dependent position. In contrast, for patients with venous insufficiency, blood return to the heart needs to be enhanced, so the lower extremities are elevated. Exercise can be prescribed to aid in the development of collateral circulation. Some pain is associated with Copyright © 2018 Wolters Kluwer · All Rights Reserved PAD Aneurysms • Definition: a weakening of an artery wall that creates a bulge, or distention, of the artery. Common sites: • Aortic aneurysm: the main artery carrying blood from the heart to the body. • Cerebral aneurysm: • Popliteal artery aneurysm: the artery behind the knee. • Mesenteric artery aneurysm: the artery that supplies blood to the intestine. • Splenic artery aneurysm: the artery of the spleen. Copyright © 2018 Wolters Kluwer · All Rights Reserved Etiologic Classification of Arterial Aneurysms Congenital: Primary connective tissue disorders (Marfan syndrome) and other diseases (focal medial agenesis, tuberous sclerosis, Turner syndrome, Menkes syndrome) Mechanical (hemodynamic): Post-stenotic and arteriovenous fistula and amputation related Traumatic (pseudo-aneurysms): Penetrating arterial injuries, blunt arterial injuries, pseudo-aneurysms Inflammatory (noninfectious): Associated with arteritis (Takayasu disease, giant cell arteritis, systemic lupus erythematosus) and periarterial inflammation (i.e., pancreatitis) Infectious (mycotic): Bacterial, fungal, spirochetal infections Pregnancy-related degenerative: Nonspecific, inflammatory variant. Copyright © 2018 Wolters Kluwer · All Rights Reserved Symptoms and diagnosis of Aneurysm According to the site of the aneurysm, symptoms can include: • Headache, Dizziness, Vision changes, Confusion • Pain in abdomen or back • Pulsating abdominal mass • Blue coloration (cyanosis) of lower extremities • Fatigue, Hoarseness, Swelling in the neck • Difficulty swallowing • High-pitched breathing sound • Chest or upper back pain • Nausea and vomiting • Sense of impending doom. • Shock (low blood pressure, rapid heart rate, clammy skin, decreased awareness) • Diagnosis: angiogram, CT scan or ultrasound test to diagnose an aneurysm. Copyright © 2018 Wolters Kluwer · All Rights Reserved Management Modification risk factors: • Controlling high blood pressure • Eating healthy foods • Getting regular physical activity • Quitting smoking or using tobacco in any form surgery to reinforce the artery wall with a stent Copyright © 2018 Wolters Kluwer · All Rights Reserved Raynaud Disease • Definition: is a rare disorder that affects the arteries. Vasospasm of the arteries which reduces blood flow to the fingers and toes . Etiology according to Classification of Raynaud’s 1. Etiology of Primary Raynaud’s • Cold temperature Stress Blood vessels in spasm. 2. Etiology of Secondary Raynaud’s • Scleroderma Lupus • Rheumatoid arthritis. • Carpal tunnel syndrome. • Repetitive actions Hand and foot injuries. • Exposure to certain chemicals Medicines Smoking. Copyright © 2018 Wolters Kluwer · All Rights Reserved CLINICAL MANIFESTATION During the Raynaud’s attack, arteries become narrow and no blood supply to the area, this will cause : Cold fingers and toes skin might turn white or blue when it’s cold or when stressed. fingers and toes feel tingly or irritable when they start to warm up. Diagnosis • • • • • Cold Stimulation Test. Nail fold Capillaro-scopy. Antinuclear antibody (ANA). Erythrocyte sedimentation rate . C-reactive protein (CRP) tests. Copyright © 2018 Wolters Kluwer · All Rights Reserved Management of Raynaud’s phenomena Medical treatment • Calcium channel blockers -- Norvasc . • Alpha blockers --Prazosin • Vasodilators -- Losartan (Cozaar) . • Surgical treatment • Nerve surgery--- sympathectomy. • Amputation. • Health Education • Stop smoking Exercise Control stress. • Avoid caffeine Avoid caffeine Take care of feet and hand Dress warmly outdoors Complication: - deformities of fingers and toes. - gangrene, ulcer Copyright © 2018 Wolters Kluwer · All Rights Reserved NURSING INTERVENTION • Assess the patient for the blood circulation, colour and sensation at the extremities. • Apply warm compress at the affected area • Administer the medication as prescribed by doctor such as vasodilator, calcium channel blockers and alpha blockers • Monitor the blood circulation to the extremities every two hourly (circulation chart) • Encourage patient to perform extremities exercises while sitting or during work. • Encourage the patient to Soak hands in warm water at the first sign of an attack • Keeping your hands and feet warm in cold weather © 2018as Wolters Kluwer · All Rights Reserved • Avoiding triggers,Copyright such certain medicines and stress Venous Disorders Reduction in venous blood flow caused in pathologic changes including coagulation defects, edema formation and tissue breakdown, and an increased susceptibility to infections. Forms of venous disorders: • Venous thromboembolism (DVT) and pulmonary embolism (PE) • Varicose veins • Chronic venous insufficiency/post-thrombotic syndrome • Leg ulcers Copyright © 2018 Wolters Kluwer · All Rights Reserved Venous Thromboembolism (DVT) (PE) Definition: a blood clot forms in a deep vein. These clots usually develop in the lower leg, thigh, or pelvis. Risk factors 1- Endothelial damage as: (Trauma, Surgery, Pacing wires, Central venous catheters, Dialysis access catheters, Local vein damage, Repetitive motion injury) II- Venous stasis: (Bed rest or immobilization, Obesity, History of varicosities, Spinal cord injury, Age (>65 years) III- Altered coagulation: (Cancer, Pregnancy, Oral contraceptive us ) Manifestations –Extremity becomes: massively swollen, tense, painful, and cool to the touch. tenderness, redness, and warmth. Complications of Venous Thrombosis • Pulmonary emboli from dislodged thrombi. • Increased venous pressure. - Venous gangrene • Varicosities, Venous ulcers, Venous obstruction: • Increased distal pressure, Fluid stasis, Edema. Copyright © 2018 Wolters Kluwer · All Rights Reserved Preventive Measures • • • • • Application of graduated compression stockings Pneumatic compression devices Early ambulation Subcutaneous heparin or LMWH Lifestyle changes – Weight loss – Smoking cessation – Regular exercise Q: Which patient is at highest risk for venous thromboembolism? A. A 50-year-old postoperative patient B. A 25-year-old patient with a central venous catheter in place to treat septicemia C. A 71-year-old otherwise healthy older adult D. A pregnant 30-year-old woman due in 2 weeks. Answer: B. A 25-year-old patient with a central venous catheter in place to treat septicemia Rationale: Some risk factors for venous thromboembolism include but are not limited to age older than 65 years, patients undergoing surgery, central venous catheter placement, septicemia, and pregnancy. The client in this question with two risk factors is the 25 year old with a central venous catheter in place to treat septicemia. All other patients only have one risk factor Copyright © 2018 Wolters Kluwer · All Rights Reserved Varicose Veins Definition: abnormally dilated, tortuous, superficial veins caused by incompetent venous valves. Causes: Weak or damaged valves can lead to varicose veins Risk factors: Aging: causes wear and tear on the valves. Sex: Women are more likely to develop the condition. Due to Hormonal changes. Standing or sitting for long periods of time. Pregnancy. Family history. . Obesity. Copyright © 2018 Wolters Kluwer · All Rights Reserved Symptoms of Varicose Veins Veins that are dark purple or blue in color Veins that appear twisted and bulging dull aches, muscle cramps. increased muscle fatigue in the lower legs. ankle edema, and a feeling of heaviness of the legs. Nocturnal cramps. Assessment and Diagnostic Findings • duplex ultrasound scan, typically performed in a reverse Trendelenburg position or with the patient standing. • Venography it involves injecting a radiopaque contrast agent into the leg veins so that the vein anatomy can be visualized by x-ray studies. • CT venography can be helpful Copyright © 2018 Wolters Kluwer · All Rights Reserved Management of Varicose vein Elevation of the legs above the level of the heart 3 or 4 times a day for about 15 minutes at a time. Compression stockings: These elastic stockings squeeze the veins and prevent blood from pooling. Anti-infective therapy depends on the infecting agent. – Oral antibiotics are usually prescribed Sclerotherapy: A salt (saline) or chemical solution is injected into the varicose veins. Thermal ablation: A tiny fiber is inserted into a varicose vein through a catheter and the laser or radiofrequency energy is used to deliver heat that destroys the wall of the varicose vein. Vein stripping.: surgery to remove varicose veins. Microphlebectomy.: Special tools inserted through small cuts (incisions) are used to remove varicose veins. Copyright © 2018 Wolters Kluwer · All Rights Reserved Nursing care Assessment of predisposing factors. Instruct the patient about preventive measures as: Avoid wearing socks that are too tight . Avoid crossing the legs at the thighs. Avoid sitting or standing for long periods) Instruct the patient to Elevate the legs 3 to 6 inches higher than heart level Encourage to walk 30 minutes each day if there are no contraindications Wear graduated compression stockings Overweight reduction plans. Instructions about Complications as: Bleeding. - Chronic venous insufficiency Thrombophlebitis: Blood clots in the vein of the leg. Copyright © 2018 Wolters Kluwer · All Rights Reserved Leg Ulcers Definition of Leg Ulcers • a break in the skin of the leg or an excavation of the skin surface that occurs when inflamed necrotic tissue sloughs off. Causes: • Venous Disease . • Arterial Disease . • Clotting and circulation disorders • Other causes : diabetes and rheumatoid arthritis. S&S: a swollen leg , feel burning or itching, rash, redness, brown discoloration or dry, scaly skin. Nursing Assessment: • History of the condition • Assess pain, peripheral pulses, edema, Wound Treatment depends on the type of ulcer • Antibiotics, if an infection is present • Anti-platelet or anti-clotting medications to prevent a blood clot • Topical wound care therapies Copyright © 2018 Wolters Kluwer · All Rights Reserved Wound Care at Home • Keeping the wound clean and dry • Changing the dressing as directed • Taking prescribed medications as directed • Drinking plenty of fluid • Following a healthy diet, as recommended, including plenty of fruits and vegetables • Exercising regularly, as directed by a physician • Wearing appropriate shoes • Wearing compression wraps Copyright © 2018 Wolters Kluwer · All Rights Reserved Lymphatic Disorders Forms of lymphatic disorders: Lymphangitis: inflammation or infection of the lymphatic channels Lymphadenitis: inflammation or infection of the lymph nodes Lymphedema: tissue swelling related to obstruction of lymphatic flow. Causes: • Elevated central venous pressure. • Lymphatic outflow obstruction, narrowing or blockage of the largest lymphatic channel in the chest . • Traumatic injury of lymphatic channels following esophageal surgery. • Congenital lymphatic disorder. • Congenital localized lymphatic malformations, Copyright © 2018 Wolters Kluwer · All Rights Reserved Symptoms of lymphatic disorders Chylothorax: (chyle within the chest) Chylous ascites: (chyle within the abdomen) Chylopericardium: (chyle around the heart) Protein-Losing Enteropathy: (loss through the intestinal tract) Plastic Bronchitis :leak into the airways) Chylous emesis: (loss from the upper GI tract) Chyluria: (leak into the urinary tract) Lymphatic leak at surgical sites. Diagnosis: Conventional Intranodal Lymphangiography: contrast dye is directly injected into the lymph nodes and imaged in the lymphatic system by fluoroscopy (X-ray) Magnetic Resonance Lymphangiography: contrast dye is directly injected into the lymph nodes and imaged in the lymphatic system by MRI Lymphoscintigraphy. injecting radio-labeled dye into the body and observing its flow through the lymphatic system Copyright © 2018 Wolters Kluwer · All Rights Reserved Medical Management - Active and passive exercises assist in moving lymphatic fluid into the bloodstream. - External compression devices make the fluid proximally from the foot to the hip or from the hand to the axilla. - skin care, pressure gradient sleeves, and pneumatic pumps, depending on the severity and stage of the lymphedema. - Diuretic furosemide (Lasix) . - Antibiotic If lymphangitis or cellulitis is present. •Surgical Management •Excision of the affected subcutaneous tissue and fascia, with skin grafting to cover the defect. •Lymphatico-venous bypasses performed with anastomosing the end of the lymphatic vessels to the side of veins to reduce lymphatic flow in the limbs Copyright © 2018 Wolters Kluwer · All Rights Reserved Cellulitis Definition: bacterial skin infection that causes redness, swelling, and pain in the infected area of the skin Causes: • Skin Injuries. • Infections after surgery • Long-term skin conditions such as eczema • Foreign objects in the skin • Bone infections S&S: localized swelling or redness, fever, chills, sweating Treat with oral or IV antibiotics based on severity • Nursing Care: – Elevate affected area – Warm, moist packs to site every 2 to 4 hours – Educate regarding prevention of recurrence – Reinforce education about skin and foot care Copyright © 2018 Wolters Kluwer · All Rights Reserved References Hinkle J., Cheever K.,(2018), Brunner & Suddarth's Textbook of Medical-Surgical Nursing, 14th ed, Philadelphia, Wolters Kluwer Copyright © 2018 Wolters Kluwer · All Rights Reserved