Abdominal Decompression in Children

Table 2

The WSACS consensus definitions and suggested pediatric definitions.

	WSACS consensus definitions [4, 5]	Suggested pediatric definitions
IAP	The pressure concealed within the abdominal cavity (It should be expressed in mmHg and measured at end expiration)	Same
Normal IAP	Approximately 5–7 mmHg in critically ill adults	7 ± 3 mmHg in critically ill children [19]
APP	The difference between MAP and IAP	Same
IAH	Defined by a sustained or repeated pathological elevation in IAP ≥ 12 mmHg.	Defined by a sustained or repeated pathological elevation in IAP ≥ 10 mmHg [19].
IAH grade I	IAP 12–15 mmHg	IAP 10–12 mmHg
IAH grade II	IAP 16–20 mmHg	IAP 13–15 mmHg
IAH grade III	IAP 21–25 mmHg	IAP 16–19 mmHg
IAH grade IV	IAP > 25 mmHg	IAP ≥ 20 mmHg
ACS	Sustained IAP > 20 mmHg (with or without an APP < 60 mmHg) that is associated with new organ dysfunction/failure	A sustained IAP of greater than 10 mmHg associated with new organ dysfunction/failure
Primary ACS	A condition associated with injury or disease in the abdomino-pelvic region that frequently requires early surgical or interventional radiological intervention	Same
Secondary ACS	Refers to conditions that do not originate from the abdomino-pelvic region	Same
Recurrent ACS	Refers to the condition in which ACS redevelops following previous surgical or medical treatment of primary or secondary ACS	Same

WSACS, World Society of Abdominal Compartment Syndrome; IAP, intra-abdominal pressure; IAH, intra-abdominal hypertension; APP, abdominal perfusion pressure; MAP, mean arterial pressure; ACS, abdominal compartment syndrome.