In brief
Not every recurrence after sinus surgery needs a second operation: first it is necessary to understand why the disease is not controlled.
Revision surgery is assessed with endoscopy and CT, and is considered when it offers more benefit than medical treatment alone.
Scarring and altered anatomy make it technically different from a first operation; image-guided navigation can help in selected cases.
Revision endoscopic sinus surgery is considered when sinonasal disease persists or recurs after previous surgery and a new operation is expected to offer more benefit than medical management alone. Not every recurrence requires a second operation: first it is necessary to understand why the disease is not controlled.
Why revision may be needed
Causes may include persistent underlying inflammation, recurrent nasal polyps, scarring or stenosis, residual anatomy that limits drainage and access for topical treatments, osteitis, complex frontal or sphenoid disease and focal disease that was not fully treated.
Pre-operative assessment
Endoscopy and CT are systematically reviewed. After previous surgery some landmarks may be altered or missing, so planning must reconstruct the residual anatomy, identify the areas of disease and recognise the higher-risk zones, such as the orbit and skull base.
Why it differs technically from first-time surgery
Scarring, osteitis and loss of normal landmarks can make dissection more complex. Mucosal preservation, identification of reliable anatomical landmarks and adequate exposure of the affected sinuses are central to the strategy.
Surgical navigation
In selected cases image-guided navigation can improve orientation in altered anatomy. It remains a support tool and does not replace surgical expertise.
Read more: Endoscopic sinus surgery (ESS/FESS).
Reference: Revision Functional Endoscopic Sinus Surgery. PubMed
Author: Dr Puya Dehgani-Mobaraki. This information is educational and does not replace a specialist consultation.