Bronchiectasis

Populations and Risk Factors

• Rarely a primary disease; typically secondary to prior severe or repeated pulmonary infections — necrotizing bacterial pneumonia, pertussis, measles, tuberculosis
• Cystic fibrosis is the most common cause of bronchiectasis in developed countries
• Primary ciliary dyskinesia (congenital ciliary motility defect) — includes Kartagener syndrome (bronchiectasis, situs inversus, chronic sinusitis)
• Immunodeficiency states (hypogammaglobulinemia, HIV) — increased susceptibility to recurrent pulmonary infections
• Aspiration injury — chronic gastroesophageal reflux or aspiration of foreign body
• COPD — may develop bronchiectasis from chronic airway inflammation
• Autoimmune conditions (rheumatoid arthritis, inflammatory bowel disease) — associated with non-CF bronchiectasis
• More common in females and prevalence increases with age
• History of tuberculosis (particularly in developing countries — TB remains the most common worldwide cause)
• Allergic bronchopulmonary aspergillosis (ABPA) — fungal hypersensitivity reaction causing airway damage

Causes and Pathophysiology

The Vicious Cycle

• The core pathophysiology is a self-perpetuating destructive cycle that, once established, cannot be reversed — treatment manages the cycle but cannot restore normal airway architecture:

1. Initial insult — severe infection, aspiration, or congenital defect damages the airway wall
2. Structural damage — smooth muscle and elastic tissue in the bronchial wall are destroyed; the weakened wall dilates under normal intrathoracic pressure
3. Impaired clearance — dilated airways cannot generate effective peristaltic contractions; mucociliary transport fails in the damaged segments; mucus pools in the dilated airways
4. Bacterial colonization — pooled stagnant mucus becomes an ideal bacterial growth medium; Haemophilus influenzae, Pseudomonas aeruginosa, and Streptococcus pneumoniae are the most common colonizers
5. Chronic inflammation — bacterial products and the host inflammatory response (neutrophil recruitment, protease release) cause further wall destruction
6. Cycle repeats — more damage, more dilation, more mucus retention, more infection

Types of Bronchiectasis

• Cylindrical: most common; uniform dilation of the airways; least severe form
• Varicose: irregular, beaded dilation (resembles varicose veins); intermediate severity
• Saccular (cystic): large sac-like dilations at the airway terminations; most severe form; most associated with massive sputum production and hemoptysis

Respiratory Mechanics Impact

• Chronic airway obstruction from mucus plugging and wall thickening increases airway resistance — more effort required to move air in and out
• Air trapping occurs when damaged airways collapse during expiration before all air can be expelled — produces progressive hyperinflation (same mechanism as emphysema)
• Chronic hyperinflation flattens the diaphragm and increases the anteroposterior chest diameter (barrel chest)
• Work of breathing is chronically elevated — accessory muscles of respiration must compensate for diaphragmatic inefficiency and increased airway resistance
• Chronic productive cough generates significant mechanical force through the chest wall, abdominal wall, and pelvic floor — intercostal strain, costovertebral joint stress, and abdominal wall fatigue develop
• Hemoptysis (coughing blood) occurs because the chronic inflammatory process damages the bronchial arterial vasculature — dilated, friable vessels in the damaged airway walls can rupture with cough force

Secondary Complications

• Cor pulmonale: chronic hypoxemia from ventilation-perfusion mismatch triggers pulmonary vasoconstriction (hypoxic pulmonary vasoconstriction) → pulmonary hypertension → right ventricular hypertrophy ��� right-sided heart failure; signs include ankle edema, JVD, hepatomegaly
• Respiratory failure: progressive loss of functional lung tissue eventually exceeds compensatory capacity
• Brain abscess: rare but recognized complication — bacteremic spread from chronic pulmonary infection
• Amyloidosis: extremely rare; chronic inflammation can trigger systemic amyloid deposition

Signs and Symptoms

• Chronic productive cough — the cardinal symptom; worse in the morning (mucus pools overnight in dependent airways) and when lying flat; may produce large volumes of sputum (50–500 mL/day in severe disease)
• Copious purulent sputum — yellow-green, foul-smelling; three-layer sputum in a collection cup (froth on top, mucopurulent middle, sediment at bottom) is classic for bronchiectasis
• Hemoptysis — blood-streaked sputum is common; massive hemoptysis (>200 mL/24 hours) is a life-threatening emergency requiring immediate medical attention
• Digital clubbing — bulbous enlargement of fingertips and toes from chronic hypoxia; present in approximately 50% of patients with established disease
• Cyanosis — bluish discoloration of lips, nail beds, and skin in advanced disease
• Barrel chest — increased AP diameter from chronic air trapping and hyperinflation; same as in emphysema
• Audible crackles (rales) and/or wheezing — crackles from mucus in airways; wheezing from airway narrowing
• Dyspnea — progressive with disease advancement; initially exertional, eventually at rest
• Chronic fatigue — from chronic infection, hypoxemia, and increased energy expenditure for breathing
• Recurrent acute exacerbations — episodes of increased sputum volume, changed sputum color, increased dyspnea, and sometimes fever; these accelerate lung function decline
• Weight loss and anemia — chronic infection and inflammation produce catabolic state
• Foul breath (halitosis) — from retained purulent secretions
• Tripod position — spontaneous forward lean with hands on knees during respiratory distress, optimizing accessory muscle mechanics

Assessment Profile

Subjective Presentation

• Chief complaint: "I cough up cups of phlegm every day," "My chest is always tight and I can't take a deep breath," "My neck and shoulders are constantly sore," or "I'm always exhausted" — the combination of chronic productive cough, respiratory restriction, and accessory muscle pain is the typical presentation; the MSK consequences of chronic respiratory effort are often what bring the patient to massage therapy
• Pain quality: musculoskeletal — chronic neck and shoulder tension from accessory muscle overload; intercostal soreness from chronic forceful coughing; chest wall pain; pleuritic pain during infections (sharp, worse with breathing); costovertebral joint pain from chronic thoracic stiffness
• Onset: chronic and progressive; usually traced back to a severe respiratory infection, childhood illness, or known predisposing condition (CF, immunodeficiency); current complaints reflect the cumulative burden of years of chronic respiratory disease; obtain the underlying cause, current medication regimen, frequency of exacerbations, and most recent chest imaging or pulmonary function test
• Aggravating factors: lying flat (mucus redistribution increases cough); respiratory infections (acute exacerbations); cold and damp air; exercise beyond tolerance; missed airway clearance sessions; dehydration (thickens secretions)
• Easing factors: regular airway clearance therapy (postural drainage, percussion, oscillating devices); upright or semi-reclined position; bronchodilators and mucolytics; hydration; paced activity with rest breaks; controlled coughing techniques
• Red flags: hemoptysis — blood-streaked or frank blood in sputum — contraindicates vigorous percussion and postural drainage; massive hemoptysis (>200 mL/24 hrs) is a life-threatening emergency requiring immediate medical referral; sudden high fever with foul sputum and severe chest pain — possible lung abscess — urgent referral; ankle edema and JVD — possible cor pulmonale — medical evaluation needed; sudden pleuritic chest pain with dyspnea — possible pneumothorax — emergency referral

Observation

• Local inspection: barrel chest (increased AP diameter); digital clubbing; cyanosis of lips and nail beds; visible accessory muscle use during quiet breathing (SCM and scalene contractions visible with each respiratory cycle); tripod positioning during distress; thin frame from chronic caloric deficit; possible signs of cor pulmonale (ankle edema, JVD)
• Posture: increased thoracic kyphosis from hyperinflation and chronic forward posture; forward head position; rounded, protracted shoulders from pectoralis minor shortening; elevated shoulders from chronic accessory muscle engagement; reduced lumbar lordosis; overall posture mimics the COPD/emphysema pattern
• Gait: reduced endurance and walking tolerance; slow pace with frequent rest stops; no specific gait deviation unless deconditioning is severe or cor pulmonale produces significant ankle edema affecting ambulation

Palpation

• Tone: bilateral chronic hypertonicity in accessory muscles of respiration �� SCM, scalenes (anterior, middle, posterior), pectoralis minor, upper trapezius, levator scapulae, serratus posterior superior, and intercostals; these muscles are not just hypertonic but hypertrophied from years of compensatory respiratory effort; abdominal obliques and rectus abdominis may also be hypertonic from chronic forceful coughing
• Tenderness: accessory muscles are consistently tender — particularly SCM, scalenes, and pectoralis minor; intercostal tenderness from chronic cough biomechanics; costochondral junction tenderness (costal chondritis from repetitive cough force); thoracic paraspinal tenderness from chronic postural strain; costovertebral joint tenderness from restricted motion
• Temperature: typically normal; localized chest wall warmth may indicate underlying consolidation or active infection; cool extremities in advanced disease (poor cardiac output from cor pulmonale); warm ankle edema if cor pulmonale is developing
• Tissue quality: hypertrophied, fibrotic accessory muscles — SCM and scalenes are palpably enlarged and ropy in long-standing disease; intercostal muscles are fibrotic with reduced inter-rib compliance; thoracic paraspinals are ropy and indurated; costovertebral joint play is significantly restricted (stiff, minimal accessory glide); chest expansion may be asymmetric if disease is more severe on one side (assess by palpating bilateral rib expansion during deep breathing)

Motion Assessment

• AROM: thoracic rotation and lateral flexion significantly restricted from costovertebral stiffness, intercostal fibrosis, and hyperinflated resting position; thoracic extension limited; cervical ROM may be limited by SCM and scalene shortening; respiratory excursion measurement (chest circumference difference between full inspiration and expiration) is reduced — this is a primary outcome measure; active deep breathing may trigger coughing
• PROM / end-feel: costovertebral joints have a stiff, fibrotic end-feel with minimal accessory motion; rib spring test shows reduced compliance (chest wall is rigid); cervical PROM may exceed AROM if the restriction is primarily from hypertonic musculature; thoracic PROM is limited by structural changes in the chest wall
• Resisted testing: neck flexion and lateral flexion strong from hypertrophied SCM and scalenes but may be painful from chronic overuse; general weakness from deconditioning; trunk flexion may be strong from chronic coughing (abdominal muscles are chronically engaged) but may reproduce intercostal or chest wall pain

Special Test Cluster

Treatment planning note: The lung segment(s) most affected by bronchiectasis should be identified from medical history and imaging (if available). Percussion and postural drainage are directed at the affected segments specifically, not performed randomly over the entire chest.

Differential Assessment