The Efficacy of Pyogenic Cavity Aerobic Therapy with Negative Pressure Drainage in the Treatment of Deep Neck Space Infections

Figures & data

Table 1 Distribution of the Types of Deep Neck Infections

Diagnosis	Total n (%) (N= 36)	Group A n (%) (N= 13)	Group B n (%) (N= 23)
Parapharyngeal space infection	20 (55.6)	8 (61.5)	12 (52.3)
Submandibular space infection	7 (19.4)	3 (23.1)	4 (17.4)
Multi-space infection	6 (16.7)	1 (7.7)	5 (21.7)
Necrotizing myofasciitis	2 (5.6)	1 (7.7)	1 (4.3)
Retropharyngeal space infection	1 (2.8)	0	1 (4.3)

Figure 1 CT images of the neck showing low density shadowing and a gas shadow in the cervical subcutaneous, parapharyngeal, retropharyngeal, prevertebral, carotid, and upper mediastinum spaces (A and B). Necrotic fascia of the sternocleidomastoid muscle (C). Removal of necrotic tissue followed by flushing of the pus cavity (D).

Figure 2 An oxygen tube placed in the pus cavity (A). The pus cavity was sutured and a negative pressure drainage placed in position (B). A re-examination CT image of the neck showing that the pus cavity had disappeared and the swelling of soft tissue had subsided (C). Following removal of the drainage tube the incision healed well (D).

Table 2 Comparison of Treatment Effects Between the Two Treatment Groups (±s)

Group	n	Average Hospitalization Days (d)	Average Days of Postoperative Dressing Change (d)
Group A	13	11.08±2.11	3.69±0.21
Group B	23	26.74±3.39	25.91±3.43
P		0.0025	<0.0001