Mucopolysaccharidoses are a group of lysosomal storage diseases. The deficiency of specific lysosomal enzymes leads to accumulation of glycosaminoglycans (GAGs) in the tissues and organs. Patients had Difficult Airway (DA) criteria: long epiglottis, anterior larynx, small trachea, short neck, temporo-mandibular joint rigidity, cervical instability and complications with difficult ventilation and oxygenation. We...