Table 4 Distribution of responses

B.1

Occurrence and relevance of IAH/ACS in clinical practice

   • Never

   • Seldom

   • Regularly

   • Often

Decade of first-time diagnosing IAH/ACS:

   • Before 1980

   • 1980 to 1989

   • 1990 to 1999

   • 2000 to 2009

B.2

Awareness of current WSACS-definitions (tested by free text)

   • principle of IAH definition correctly described (increased IAP)

   • principle of ACS definition correctly described (IAH + organ dysfunction)

Stated IAP thresholds for IAH

   • IAP ≥ 10 mmHg

   • IAP ≥ 12 mmHg

   • IAP ≥ 15 mmHg

   • IAP ≥ 20 mmHg

B.3

Frequency of diagnosed IAH at answering ICUs in 2009

   • 0 times IAH

   • 1 to 10 times IAH

   • > 10 times IAH

Frequency of diagnosed ACS at answering ICUs in 2009

   • 0 times ACS

   • 1 to 5 times ACS

   • > 5 times ACS

Distribution of causes of ACS

   • Primary ACS

   • Secondary ACS

   • Not distinguishable

B.5

Awareness and use of current WSACS definitions (tested by multiple choice)

   • IAH definition correctly chosen (increased IAP)

   • ACS definition correctly chosen (increased IAP + new organ dysfunction)

Clinical symptoms stated to be associated with increased IAP in children

   • Oliguria to anuria

   • From peritonism, to peritonitis, and to acute abdomen

   • Abdominal distension

   • Hemodynamic insufficiency

   • Respiratory insufficiency

   • Organ dysfunction (including ileus)

   • Radiologic findings

   • Impaired venous reflux to increased central venous pressure

   • Others

B.6

Share of respondents stating to measure IAP regularly

Stated reasons for not measuring IAP

   • Clinical diagnosis (IAP measurement not necessary)

   • Lack of technical equipment

   • Lack of therapeutical consequence

   • Fear for invasiveness

   • Fear for infection

   • Fear for additional expenditure

Frequency of measurements among those who stated to measure IAP

   • once per day

   • two times per day

   • three to four times per day

   • Continuously (or more than four times per day)

   • In cases of clinical signs of IAH or ACS

   • In cases of organ dysfunction or failure

B.7

Predominantly used indirect IAP measurement methods

   • via intra-vesical pressure

   • via intra-gastric pressure

   • via PIP (PIP increase is a consequence of IAH)

   • via central venous pressure

Predominantly used direct IAP measurement methods

   • via Spiegelberg^® probe^a (modified brain pressure probe)

   • via CAPD catheter

   • via surgical drainage

   • via intra-abdominal placed cardiac catheter

B.8

Share of respondents who stated they would measure IAP more often if the procedure and technical requirements became easier and more standardized

B.12

Share of respondents having performed at least one decompressive laparotomy in 2009

Stated survival rate of ACS patients in 2009

   • Surgically treated children

   • Non-surgically treated children

Share of respondents who would surgically decompress again (if indicated)