Complications and risks of whooping cough

Whooping cough is usually survived, but its complications are real - concentrated in infants, and mechanical in the violent coughing itself.

The infant complications (the serious list):

• Apnoea - pauses in breathing during or after fits: the immediate life-threat and the reason infants are hospitalized.
• Pneumonia - the commonest severe complication and the main cause of pertussis deaths.
• Seizures and, rarely, encephalopathy (brain involvement) - from oxygen deprivation during fits.
• Feeding failure, dehydration and malnutrition over the long course.

The mechanical complications of violent coughing (any age): broken capillaries in the eyes and face, nosebleeds, rib fractures (in adults), hernias, urinary incontinence, rectal prolapse in small children, and fainting after fits. Pneumothorax (air leaking around the lung) is rare but reported.

The secondary infections: ear infections and sinusitis trail the weeks of mucus and coughing; new fever mid-course usually means one of these and needs review.

The long tail: weeks of lost sleep, school and work; weight loss in small children; exhaustion of caregivers. Recovery is typically complete in the otherwise healthy - but the course is long enough to strain a family, which is worth planning for.

The prevention of complications is everything already covered: vaccination (including pregnancy Tdap) to stop the disease, early antibiotics to stop spread, hospital care for infants, and smoke-free supportive care to reduce fit severity.

Ayurvedic view (interpretive): classical texts recognize prolonged violent cough as weakening and dangerous in the small and frail - a sound instinct within an interpretive framework of limited evidence. The complication list above is the operative one.

Remember: infant apnoea and pneumonia are the killers; rib fractures, hernias and burst vessels are the mechanical costs; fever mid-course means a secondary infection. Vaccination prevents the whole list.