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Association between the effect of controlled fluid resuscitation on massive hemorrhage and expression of human neutrophil lipocalin

  • Authors:
    • Jie-Yang Yu
    • Jia-Hua Peng
    • Li Hui
    • Hui-Quan Huang
    • Ming-Hua Tan
    • Guo Jian
  • View Affiliations

  • Published online on: August 9, 2018     https://doi.org/10.3892/etm.2018.6591
  • Pages: 3534-3538
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Abstract

The present study was designed to investigate the association between the effect of controlled fluid resuscitation on massive hemorrhage and expression of human neutrophil lipocalin (HNL). A total of 112 patients confirmed with traumatic hemorrhage were enrolled as study subjects and were randomly divided into the control group (n=56) and observation group (n=56). The control group was treated with rapid fluid resuscitation, and the observation group was treated with controlled fluid resuscitation. The success rate of resuscitation, incidence rate of complications, and HNL levels were compared both before and after resuscitation at multiple time intervals. The success rate of resuscitation showed a significant improvement while the incidence rate of complications were decreased. The HNL levels in both groups revealed increase after resuscitation at 3-10 h, thereby, they showed decline following peak point. However, the peak reduction in the observation group appeared earlier, while the HNL levels at 24 and 72 h were significantly lower than those in the control group. The study concluded that the effect of controlled fluid resuscitation on massive hemorrhage was superior to that of rapid fluid resuscitation. Moreover, controlled fluid resuscitation was also able to decrease the level of HNL as well as inflammatory response.

Introduction

Uncontrolled hemorrhagic shock (UHS) is a kind of clinically common disease, which is the ‘lethal triad’ with low body temperature, acidosis and coagulation dysfunction as typical pathophysiological changes. Further, its treatment is based primarily on the principle of fluid resuscitation that includes restoration of the blood perfusion and oxygen supply to end organs (1). The early fluid resuscitation program was based on the Wiggers controlled hemorrhagic shock model (2). Earlier, the above method was utilized widely but a number of clinical observations revealing iatrogenic secondary strikes greatly affected its success rate (3). On the other hand, controlled fluid resuscitation emphasizes the maintenance of blood volume in basal metabolic cycle, instead of rapid stability of vital signs. In this way, it gave full play to the body's own compensatory mechanism and reduced the complications of fluid resuscitation (4). Furthermore, a study in the recent past has confirmed that stress as well as inflammatory response disorders played an important role in the development of UHS and during fluid resuscitation (5). A variety of inflammatory indexes, such as C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and procalcitonin (PCT), have important application values in reflecting the severity of UHS as well as the effect of fluid resuscitation (6,7). Moreover, recent studies have exhibited that human neutrophil lipocalin (HNL), is a kind of novel secreted protein in neutrophil secondary granules (8,9). Furthermore, it was closely associated with inflammatory response, activation of signal transduction pathway, immune response and development of tumors. So, HNL has a better application value in diagnosing the early renal injury. Also, it helps to distinguish between acute, bacterial and viral infections (10,11). Therefore, the present study aimed primarily to evaluate the association between the effect of controlled fluid resuscitation on massive hemorrhage as well as the HNL expression, which would contribute to the improvement of the assessment and treatment of UHS.

Materials and methods

Study design

A total of 112 patients diagnosed with UHS in People's Hospital of Baise from March 2015 to March 2017 were continuously selected as study subjects. Inclusion criteria were: i) patients with the trauma index <12 according to AIS90-ISS standard, injury severity score (ISS) >16 and survival time >72 h, accompanied with different degrees of shock (12); ii) patients who received effective treatment of traumatic disease; iii) patients who could undergo fluid resuscitation according to different groups, with complete clinical data and informed consent. Exclusion criteria were: i) patients complicated with serious underlying diseases, such as dysfunction in heart, liver, lung, kidney, brain or other organs, or coagulation dysfunction; ii) patients with uncontrolled infection or pain. The patients were divided into the control group (n=56) and observation group (n=56) using the random number method. The baseline data of the groups were comparable (P>0.05) (Table I). The Ethics Committee of People's Hospital of Baise (Baise, China) duly approved the present study as well as all experimental methods. The consent forms were obtained from all the patients or their guardians before the treatment.

Table I.

Comparison of baseline data between the two groups.

Table I.

Comparison of baseline data between the two groups.

ItemsControl group (n=56)Observation group (n=56)t/χ2P-value
Male/female33/2335/210.1500.699
Age (years)48.9±6.747.6±6.50.2530.648
Onset time (h)3.5±0.63.7±0.90.1850.767
Trauma index8.9±1.78.6±1.50.0890.865
ISS19.5±2.421.2±2.50.3260.587
Shock degree (n, %) 0.7660.682
  Mild18 (32.1)15 (26.8)
  Moderate23 (41.1)22 (39.3)
  Severe15 (26.8)19 (33.9)
Trauma site (n, %) 0.3010.960
  Chest22 (39.3)22 (39.3)
  Abdomen18 (32.1)17 (30.4)
  Pelvic cavity and head6 (10.7)5 (8.9)
  Combined trauma10 (17.9)12 (21.4)

[i] ISS, injury severity score.

Research methods

The patients received immediate treatment in the Emergency Department or selective operation, followed by resuscitation and monitoring in ICU. They underwent general physical examination in accordance with ‘CRASHPLAN’ and ‘VIPC’ rescue process. At least two venous channels were established using the balanced crystalloid solution (lactated Ringer's solution or Ringer's sodium bicarbonate solution) supplemented by colloidal fluid (low molecular dextran and 706 dextran) at the right time with the crystal/colloid ratio of 2–3:1. According to the blood pressure recovery, the infusion rate, dose and vasoactive drugs used were determined. The control group was treated with rapid fluid resuscitation to maintain the mean arterial pressure (MAP) above 60 mmHg. The observation group was treated with controlled fluid resuscitation according to MAP or central venous pressure (CVP), and the MAP was maintained at approximately 50 mmHg before hemostasis. After full hemostasis, MAP in both groups was maintained at 80–85 mmHg and the hematocrit was maintained above 30%. Moreover, the arterial oxygen saturation, blood routine, hepatic, renal and coagulation function as well as arterial blood gas, were monitored.

Observational indexes

The success rate of resuscitation, incidence rate of complications, and HNL levels at 3, 10, 24 and 72 h both before and after resuscitation were compared between the groups. Successful resuscitation was defined as follows: the bleeding as well as shock was controlled and consciousness was recovered. Moreover, blood pressure, heart rate, urine volume and CVP were returned to normal and were maintained for at least 24 h without obvious complications. The serum HNL level was detected via enzyme-linked immunosorbent assay (ELISA). The reagents were purchased from Jiangsu Beyotime Technology Co., Ltd. (Jiangsu, China). The level was measured three times strictly according to the instructions of kit and the average was recorded.

Statistical analysis

Statistical Product and Service Solutions (SPSS) 20.0 software (IBM Corp., Armonk, NY, USA) was utilized for the statistical analysis. Measurement data are presented as mean ± standard deviation. The independent-samples t-test was used for comparison between the two groups, and the repeated measures analysis of variance and post hoc Tukeys test were performed and used for comparisons of data at different time-points. Enumeration data were presented as case or %, and Chi-square test was used for the intergroup comparison. P<0.05 was considered to indicate a statistically significant difference.

Results

Basic characteristics

The baseline data of the two groups are shown in Table I. There were no significant differences of gender ratio, age, onset time, trauma index, ISS, shock degree and trauma site between control group and observation group (P>0.05).

Comparison of success rate of resuscitation and incidence rate of complications

In the observation group, the success rates of resuscitation showed significant increase, while the incidence rate of complications showed significant decrease (P<0.05) (Table II).

Table II.

Comparison of success rate of resuscitation and incidence rate of complications between the two groups (n, %).

Table II.

Comparison of success rate of resuscitation and incidence rate of complications between the two groups (n, %).

GroupsnSuccess rateDilutional coagulation disordersDetachment of thrombusRebleedingPulmonary edema or respiratory distress syndromeComplications
Control group5644 (78.6)3 (5.4)2 (3.6)4 (7.1)3 (5.4)12 (21.4)
Observation group5652 (92.9)01 (1.8)2 (3.6)1 (1.8)4 (7.1)
χ2 4.667 4.667
P-value 0.031 0.031
Comparison of serum HNL levels at different time-points

The HNL levels in both groups were increased significantly reaching the peak at 3–10 h after resuscitation, and then were decreased. The HNL levels of the observation group at 10 h was similar to that at 3 h (P>0.05). However, the HNL levels of the control group at 10 h was significantly higher than that at 3 h (P<0.05). Moreover, the HNL levels were significantly decreased in both the control and observation groups at 24 h compared with that at 10 h (P<0.05), which suggested that the time of peak reduction in the observation group appeared earlier (Fig. 1). Furthermore, the HNL levels of the observation group was significantly lower than that of the control group at 10, 24 and 72 h (P<0.05) (Fig. 1).

Discussion

Wiggers controlled hemorrhagic shock model advocates that fluid resuscitation should be early and sufficient, while the fluid volume should be 2–3 times that of blood loss volume. At the same time, the positive inotropic drugs and vasoactive drugs should be used to raise the blood pressure, immediately. Furthermore, recovery and restoration of the effective blood volume should be performed as soon as possible. This ensures effective perfusion of organs as well as tissues. Also, the traumatic hemorrhagic shock is closely related to the mortality rate of patients and incidence rate of complications (13). However, before the active bleeding could be effectively controlled, a large amount of fluid resuscitation would result in the rise of blood loss leading to the dilution of coagulation dysfunction (14). Also, a recent report observed significant damage to the mitochondrial function along with the reduction in the oxygen supply to tissues causing acidosis (15). At the same time, a large amount of rapid infusion has been reported to cause decrease in the vasoconstriction, leading to thrombus translocation, increased complications and high mortality rates (16). The concept of controlled fluid resuscitation is to reduce the harmful effects of early massive fluid resuscitation, effectively so as to improve the perfusion as well as oxygen supply to organ tissues in shock phase. This in turn reduced the occurrence of traumatic coagulopathy without causing over-diluted blood. It also effectively prevented the detachment of thrombus as well as bleeding within the allowable low blood pressure range. Furthermore, it caused reduction in apoptosis while maintaining the compensatory mechanism thereby, improving the survival rate (17). In addition, the type and dosage of resuscitation fluid and monitoring of the resuscitation effects are also important contents of recovery management. In addition to the traditional blood pressure, heart rate, urine volume and CVP (as the parameters of full perfusion and resuscitation outcomes), the non-invasive cardiac output, cardiac ultrasound, pulse indicator continuous cardiac output monitoring, blood lactate, base deficit, intestinal mucosal pH, central venous oxygen saturation, orthogonal polarization spectral imaging and bypass dark-field imaging technique, have a certain application value in accurate assessment of the resuscitation time and mode (18,19). At the same time, selection of biochemical markers with higher sensitivity as well as specificity to assess the resuscitation effect is also an important task of UHS.

HNL, also known as neutrophil gelatinase associated lipocalin, belongs to the lipocalin superfamily that exists mainly in the form of monomer (25 kD), homodimer (45 kD) and heteromultimer covalently bound to neutrophil gelatinase. HNL is a kind of iron carrier protein, whose main ligand is a small iron-binding molecule. When the neutrophils are activated or epithelial cells are damaged under inflammatory stimulation, HNL is often expressed on a large scale (20). The present study showed that the serum HNL was at a high level before UHS resuscitation, indicating that HNL was expressed in the early stage of UHS and was involved in the occurrence as well as development of the disease. HNL, as an important molecular marker in the early inflammatory response of the body, is the product secreted by neutrophil activation. It is the chemotactic factor of a variety of inflammatory cells and the inducible factor of a variety of inflammatory mediators that are core molecule in the inflammatory cascade reaction (21). The serum HNL levels in both groups were further increased after resuscitation at 3 h, and it reached the peak in the observation group. However, it was not significantly different when compared with the control group. This confirmed that the fluid resuscitation may further activate the inflammatory response in the body and is possibly the result of further development of UHS. In the control group, the serum HNL level was increased to the peak at 10 h after resuscitation, indicating that the early rapid fluid resuscitation may also be responsible for observed increase of the degree of inflammatory response in the body. The above observation could be due to the massive rapid fluid resuscitation, leading to an inflammatory response in the body. The serum HNL levels in both groups began to decrease gradually at 24 h after resuscitation, and the level in the observation group was significantly lower than that in the control group. This suggested that HNL has a certain application value in the early evaluation of inflammatory response degree and has confirmed effects of fluid resuscitation on UHS.

There were also some limitations in this study. The sample size is relatively small and the follow-up time is relatively short. The signal pathway was not investigated in this study. Further study with a lager sample size and longer follow-up time or focused on the mechanism is still needed.

In conclusion, hemorrhagic shock produces hemodynamic changes that often result in a systemic inflammatory response that can lead to multiple organ failure and death. Early recognition of hemorrhagic shock is paramount in civilian and military communities to effectively implement damage-control resuscitation strategies to prevent progression into a state of irreversible shock and permit appropriate allocation of resources. The present study concludes that the controlled fluid resuscitation on massive hemorrhage is superior to that of rapid fluid resuscitation. Also, controlled fluid resuscitation could decrease the HNL levels and inflammatory response. Our results may promote the improvement of the assessment and treatment of UHS.

Acknowledgements

Not applicable.

Funding

No funding was received.

Availability of data and materials

The datasets used and analyzed during the current study are available from the corresponding author on reasonable request.

Authors' contributions

JYY wrote the paper, analyzed the data, conceived and designed the experiments. JYY, JHP and LH performed the experiments. HQH, MHT and GJ contributed reagents/materials/analysis tools. All authors read and approved the final manuscript.

Ethics approval and consent to participate

The Ethics Committee of People's Hospital of Baise (Baise, China) approved the present study. The consent forms were obtained from all the patients or their guardians.

Patient consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

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October-2018
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Yu J, Peng J, Hui L, Huang H, Tan M and Jian G: Association between the effect of controlled fluid resuscitation on massive hemorrhage and expression of human neutrophil lipocalin. Exp Ther Med 16: 3534-3538, 2018
APA
Yu, J., Peng, J., Hui, L., Huang, H., Tan, M., & Jian, G. (2018). Association between the effect of controlled fluid resuscitation on massive hemorrhage and expression of human neutrophil lipocalin. Experimental and Therapeutic Medicine, 16, 3534-3538. https://doi.org/10.3892/etm.2018.6591
MLA
Yu, J., Peng, J., Hui, L., Huang, H., Tan, M., Jian, G."Association between the effect of controlled fluid resuscitation on massive hemorrhage and expression of human neutrophil lipocalin". Experimental and Therapeutic Medicine 16.4 (2018): 3534-3538.
Chicago
Yu, J., Peng, J., Hui, L., Huang, H., Tan, M., Jian, G."Association between the effect of controlled fluid resuscitation on massive hemorrhage and expression of human neutrophil lipocalin". Experimental and Therapeutic Medicine 16, no. 4 (2018): 3534-3538. https://doi.org/10.3892/etm.2018.6591