Chapter 24. Kyphoscoliosis. Mosby items and derived items 2011, 2006 by Mosby, Inc., an affiliate of Elsevier Inc.

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1 Chapter 24 Kyphoscoliosis 1

2 A Figure Kyphoscoliosis. Posterior and lateral curvature of the spine causing lung compression. Excessive bronchial secretions (A) and atelectasis (B) are common secondary anatomic alterations of the lungs. B 2

3 Anatomic Alterations of the Lungs Kyphoscoliosis is a combination of two thoracic deformities that commonly appear together. Kyphosis is a posterior curvature of the spine (humpback). In scoliosis the spine is curved to one side typically appearing as an S or C shape. 3

4 Anatomic Alterations of the Lungs (Cont d) Lung restriction and compression as a result of the thoracic deformity Mediastinal shift Mucous accumulation throughout the tracheobronchial tree Atelectasis 4

5 Etiology Kyphoscoliosis affects about 2% of the people in the United States Mostly young children going through growing spurts Rarely develops in adults unless a worsening condition from childhood Kyphoscoliosis may also develop in adults from a degenerative joint condition in the spine 5

6 Etiology (Cont d) Kyphoscoliosis is commonly associated with the following general conditions: Congential scoliosis Problem with the formation of the spine or fused ribs during fetal development Neuromuscular scoliosis Problems caused by poor muscle control, muscle weakness, or paralysis Idiopathic scoliosis Scoliosis from a unknown cause (80%-85% of the cases) 6

7 Etiology (Cont d) Idiopathic scoliosis is classified as follows: Infantile scoliosis The curvature of the spine develops during the first 3 years of life. Juvenile scoliosis The curvature occurs between 4 years and the onset of adolescence. Adolescent scoliosis The spine curvature develops after the age of 10. 7

8 Etiology (Cont d) Risk Factors Include: Sex Girls are more likely to develop curvature of the spine than boys. Age The younger the child is when the diagnosis is first made, the greater the chance of curve progression. Angle of the curve The greater the curvature of the spine, the greater the risk that the curve progression will worsen. 8

9 Etiology (Cont d) Risk Factors Include: Location Curves in the middle to lower spine are less likely to progress than those in the upper spine. Height Taller people have a greater chance of curve progression. Spinal problems at birth Children with scoliosis at birth (congenital scoliosis) have a greater risk of worsening of the curve. 9

10 Diagnosis Scoliosis is diagnosed by means of the patient s medical history, physical examination, x-ray evaluation, and curve measurement. 10

11 Diagnosis (Cont d) Clinically, scoliosis is commonly defined according to the following factors related to the curvature of the spine: Shape Location Direction Angle 11

12 12

13 Overview of the Cardiopulmonary Clinical Manifestations Associated with Kyphoscoliosis The following clinical manifestations result from the pathophysiologic mechanisms caused (or activated) by Atelectasis Excessive Airway Secretions 13

14 14

15 15

16 Clinical Data Obtained at the Patient s Bedside 16

17 The Physical Examination Vital signs Increased Respiratory rate (tachypnea) Heart rate (pulse) Blood pressure Cyanosis 17

18 The Physical Examination, (Cont d) Digital clubbing Peripheral edema and venous distention Cough and sputum production 18

19 The Physical Examination, (Cont d) Chest Assessment Findings Obvious thoracic deformity Tracheal shift Increased tactile and vocal fremitus Dull percussion note Bronchial breath sounds Whispered pectoriloquy Crackles, rhonchi, and wheezing 19

20 Clinical Data Obtained from Laboratory Tests and Special Procedures 20

21 Pulmonary Function Test Findings Moderate to Severe (Restrictive Lung Pathophysiology) Forced Expiratory Flow Rate Findings FVC FEV T FEV 1 /FVC ratio FEF 25%-75% N or N or N or FEF 50% FEF PEFR MVV N or N or N or N or 21

22 Pulmonary Function Test Findings Moderate to Severe (Restrictive Lung Pathophysiology) Lung Volume & Capacity Findings VT IRV ERV RV VC N or IC FRC TLC RV/TLC ratio N 22

23 Arterial Blood Gases (Mild to Moderate Kyphoscoliosis) Acute Alveolar Hyperventilation with Hypoxemia (Acute Respiratory Alkalosis) ph PaCO 2 HCO 3 PaO 2 (slightly) 23

24 PaO 2 and PaCO 2 trends during acute alveolar hyperventilation. 24

25 Arterial Blood Gases (Severe Kyphoscoliosis) Chronic Ventilatory Failure with Hypoxemia (Compensated Respiratory Acidosis) ph PaCO 2 HCO 3 PaO 2 N (Significantly) 25

26 PaO 2 and PaCO 2 trends during acute or chronic ventilatory failure. 26

27 Arterial Blood Gases Acute Ventilatory Changes Superimposed On Chronic Ventilatory Failure Because acute ventilatory changes are frequently seen in patients with chronic ventilatory failure, the respiratory care practitioner must be familiar with and alert for the following: Acute alveolar hyperventilation superimposed on chronic ventilatory failure Acute ventilatory failure (acute hypoventilation) superimposed on chronic ventialtory failure. 27

28 Oxygenation Indices (Moderate to Severe Kyphoscoliosis) Q S /Q T DO 2 VO 2 C(a-v)O 2 O 2 ER SvO 2 N 28

29 Hemodynamic Indices Moderate to Severe Kyphoscoliosis CVP RAP PA PCWP CO SV N N N SVI CI RVSWI LVSWI PVR SVR N N N N 29

30 Laboratory Findings Severe and/or Late Stage Kyphoscoliosis If the patient is chronically hypoxemic Increased hematocrit and hemoglobin (polycythemia) Hypochloremia (Cl - ) Hypernatremia (Na + ) 30

31 Radiologic Findings Chest Radiograph Blunting thoracic deformity Mediastinal shift Increased lung opacity Atelectasis in areas of compressed (atelectatic) lungs Enlarged heart (cor pulmonale) 31

32 Figure Severe kyphoscoliosis in a 14-year-old male patient. 32

33 General Management of Scoliosis The treatment of scoliosis largely depends on the cause of the scoliosis, the size and location of the curve, and how much more growing the patient is expected to do. In most cases of scoliosis (less than 20 degrees), the degree of abnormal spine curvature is relatively small and requires only observation to ensure that the curve does not worsen. Observation is usually recommended in patients with a spine curvature of less than 20 degrees. 33

34 General Management of Scoliosis (Cont d) In young children who are still growing, observation checkups are usually scheduled in 3- to 6-month intervals. When the curve is determined to be progressing to a more serious degree (above 25 to 30 degrees in a child who is still growing), the following treatments options are available: 34

35 General Management of Scoliosis (Cont d) Braces Boston brace Charleston bending brace Milwaukee brace 35

36 Figure 24-4 Common types of braces for scoliosis. A, Boston back brace (also called a thoraco-lumbrosacral-orthosis [TLSO], a low-profile brace, or an underarm brace). Typically used for curves in the lumbar (low-back) or thoracolumbar sections of the spine. B, Charleston bending brace (also known as a part-time brace). C, Milwaukee brace (also called cervicothoracolumbosacral orthosis [CTLSO]) is used for high thoracic (mid-back) curves. 36

37 General Management of Scoliosis (Cont d) Surgery Spinal fusion Rod Instrumentation 37

38 Figure 24-5 Radiograph of patient with scoliosis treated with a Harrington rod. 38

39 General Management of Scoliosis (Cont d) Other Approaches Some physicians may try electrical stimulation of muscles, chiropractic manipulation, and exercise to treat scoliosis. There is no evidence that any of these procedures will stop the progression of spine curvature. 39

40 General Management of Scoliosis (Cont d) Other Approaches (Cont d) Exercise, however, may improve the patient s overall health and well-being. Prophylactic deep breathing and coughing (DB&C) exercises are also taught. Their long-term effect is debatable. 40

41 Respiratory Care Treatment Protocols Oxygen Therapy Protocol Bronchopulmonary Hygiene Therapy Protocol Lung Expansion Therapy Protocol 41

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