Review Article

Effect of Ulinastatin in the Treatment of Postperative Cognitive Dysfunction: Review of Current Literature

Table 1

Characteristics of included studies.

StudyStudy designPopulationIntervention and controlOutcomes

Xu et al., 2013 China [26] Prospective, double-blind,
2-arm RCT
Abdominal surgery under intravenous general anesthesia;
U: 40 patients, 75.6 ± 7.2 years;
C: 40 patients, 74.1 ± 8.1 years
U: ulinastatin 10000 units/kg diluted in normal saline to a volume of 100 mL (i.v.), over a period of 30 min before surgical incision and 5000 units/kg after surgery on days 1–3;
C: 100 mL normal saline (i.v.)
Incidence of POCD;
IL-6, TNF-α, CRP, S100β

Ge et al., 2011 China [24]2-arm RCTHip joint replacement under combined spinal-epidural anesthesia;
U: 80 patients, 72.8 ± 7.5 years;
C: 80 patients, 75.0 ± 7.1 years
U: ulinastatin 10000 units/kg diluted in normal saline to a volume of 50 mL (i.v.), over a period of 30 min before surgical incision and 5000 units/kg after surgery on days 1–3;
C: 50 mL normal saline (i.v.)
Incidence of POCD

Kang et al., 2010 China [25]2-arm RCTHip joint replacement under combined spinal-epidural anesthesia;
U: 40 patients, 75.0 ± 7.81 years;
C: 40 patients, 72.8 ± 7.25 years
U: ulinastatin 10000 units/kg diluted in normal saline to a volume of 50 mL (i.v.), over a period of 30 min before surgical incision and 5000 units/kg after surgery on days 1–3;
C: 50 mL normal saline (i.v.)
Incidence of POCD,
MMSE score;
S100β

Shan et al., 2015 China [27]2-arm RCTHip fracture under combined spinal-epidural anesthesia;
U: 21 patients, 78 ± 2 years;
C: 27 patients, 75 ± 1 years
U: ulinastatin 5000 units/kg diluted in normal saline to a volume of 100 mL (i.v.), before surgical incision and 5000 units/kg immediately after surgery;
C: 100 mL normal saline (i.v.)
Incidence of POCD,
MMSE score;
CRP

Ge et al., 2015 China [28]3-arm RCTCoronary artery bypass grafting under intravenous general anesthesia;
U1: 31 patients, 69.1 ± 4.8 years;
U2: 30 patients, 68.9 ± 4.7 years;
C: 32 patients, 67.7 ± 5.4 years
U1: ulinastatin 16000 units/kg diluted in normal saline to a volume of 60 mL (i.v.) before anesthesia induction;
U2: ulinastatin 8000 units/kg diluted in normal saline to a volume of 60 mL (i.v.) before anesthesia induction;
C: 60 mL normal saline (i.v.)
Incidence of POCD;
IL-6, TNF-α, CRP, S100β

Note: POCD: postoperative cognitive dysfunction; U: ulinastatin group; C: control group; i.v.: intravenously; RCT: randomized controlled trials.