Initial suction drainage decreases severe postoperative complications after pancreatic trauma: A cohort study.

BACKGROUND: Few studies have addressed the question of which drain types are more beneficial for patients with pancreatic trauma (PT). AIM: To investigate whether sustained low negative pressure irrigation (NPI) suction drainage is superior to closed passive gravity (PG) drainage in PT patients. METHODS: PT patients who underwent pancreatic surgery were enrolled consecutively at a referral trauma center from January 2009 to October 2021. The primary outcome was defined as the occurrence of severe complications (Clavien-Dindo grade ≥ Ⅲb). Multivariable logistic regression was used to model the primary outcome, and propensity score matching (PSM) was included in the regression-based sensitivity analysis. RESULTS: In this study, 146 patients underwent initial PG drainage, and 50 underwent initial NPI suction drainage. In the entire cohort, a multivariable logistic regression model showed that the adjusted risk for severe complications was decreased with NPI suction drainage [14/50 (28.0%) vs 66/146 (45.2%); odds ratio (OR), 0.437; 95% confidence interval (CI): 0.203-0.940]. After 1:1 PSM, 44 matched pairs were identified. The proportion of each operative procedure performed for pancreatic injury-related and other intra-abdominal organ injury-related cases was comparable in the matched cohort. NPI suction drainage still showed a lower risk for severe complications [11/44 (25.0%) vs 21/44 (47.7%); OR, 0.365; 95%CI: 0.148-0.901]. A forest plot revealed that NPI suction drainage was associated with a lower risk of Clavien-Dindo severity in most subgroups. CONCLUSION: This study, based on one of the largest PT populations in a single high-volume center, revealed that initial NPI suction drainage could be recommended as a safe and effective alternative for managing complex PT patients.

Multiple portions enteral nutrition and chyme reinfusion of a blunt bowel injury patient with hyperbilirubinemia undergoing open abdomen: A case report.

Blunt bowel injury (BBI) is relatively rare but life-threatening when delayed in surgical repair or anastomosis. Providing enteral nutrition (EN) in BBI patients with open abdomen after damage control surgery is challenging, especially for those with discontinuity of the bowel. Here, we report a 47-year-old male driver who was involved in a motor vehicle collision and developed ascites on post-trauma day 3. Emergency exploratory laparotomy at a local hospital revealed a complete rupture of the jejunum and then primary anastomosis was performed. Postoperatively, the patient was transferred to our trauma center for septic shock and hyperbilirubinemia. Following salvage resuscitation, damage control laparotomy with open abdomen was performed for abdominal sepsis, and a temporary double enterostomy (TDE) was created where the anastomosis was ruptured. Given the TDE and high risk of malnutrition, multiple portions EN were performed, including a proximal portion EN support through a nasogastric tube and a distal portion EN via a jejunal feeding tube. Besides, chyme delivered from the proximal portion of TDE was injected into the distal portion of TDE via a jejunal feeding tube. Hyperbilirubinemia was alleviated with the increase in chyme reinfusion. After 6 months of home EN and chyme reinfusion, the patient finally underwent TDE reversal and abdominal wall reconstruction and was discharged with a regular diet. For BBI patients with postoperative hyperbilirubinemia who underwent open abdomen, the combination of multiple portions EN and chyme reinfusion may be a feasible and safe option.

Asymmetric Cascade Carbonylation/Annulation of Benzyl Bromides, CO, and Vinyl Benzoxazinanones Enabled by Pd/Chiral Lewis-Base Relay Catalysis.

A highly enantioselective cascade carbonylation/annulation of benzyl bromides, CO, and vinyl benzoxazinanones under mild conditions has been established by Pd/chiral Lewis base relay catalysis, providing an efficient method to assemble chiral quinolinones from readily available starting materials in good yields with excellent diastereo- and enantioselectivities. The palladium catalyst plays two roles in this reaction, enabling both the carbonylation process and the generation of the zwitterionic π-allyl palladium intermediate.

Palladium-Catalyzed and Photoinduced Benzylic C-H Carbonylation/Annulation under Mild Conditions.

A Pd-catalyzed and photoinduced benzylic cascade benzylic C-H carbonylation/annulation reaction is realized under mild conditions (35 °C, 2 bar CO). The use of a catalytic amount of base is crucial for the reaction to achieve high yields. The reaction consists of a Pd-catalyzed generation of amidyl radical from O-benzyl hydroxylamide substrates and 1,5-HAT to give a benzylic radical, followed by carbonylation and annulation. Various homophthalimides, which could be readily converted to a number of bioactive compounds, could be obtained with up to 96% yield.

Bioelectrical impedance analysis-guided fluid management promotes primary fascial closure after open abdomen: a randomized controlled trial.

BACKGROUND: Fluid overload (FO) after resuscitation is frequent and contributes to adverse outcomes among postinjury open abdomen (OA) patients. Bioelectrical impedance analysis (BIA) is a promising tool for monitoring fluid status and FO. Therefore, we sought to investigate the efficacy of BIA-directed fluid resuscitation among OA patients. METHODS: A pragmatic, prospective, randomized, observer-blind, single-center trial was performed for all trauma patients requiring OA between January 2013 and December 2017 to a national referral center. A total of 140 postinjury OA patients were randomly assigned in a 1:1 ratio to receive either a BIA-directed fluid resuscitation (BIA) protocol that included fluid administration with monitoring of hemodynamic parameters and different degrees of interventions to achieve a negative fluid balance targeting the hydration level (HL) measured by BIA or a traditional fluid resuscitation (TRD) in which clinicians determined the fluid resuscitation regimen according to traditional parameters during 30 days of ICU management. The primary outcome was the 30-day primary fascial closure (PFC) rate. The secondary outcomes included the time to PFC, postoperative 7-day cumulative fluid balance (CFB) and adverse events within 30 days after OA. The Kaplan-Meier method and the log-rank test were utilized for PFC after OA. A generalized linear regression model for the time to PFC and CFB was built. RESULTS: A total of 134 patients completed the trial (BIA, n = 66; TRD, n = 68). The BIA patients were significantly more likely to achieve PFC than the TRD patients (83.33% vs. 55.88%, P < 0.001). In the BIA group, the time to PFC occurred earlier than that of the TRD group by an average of 3.66 days (P < 0.001). Additionally, the BIA group showed a lower postoperative 7-day CFB by an average of 6632.80 ml (P < 0.001) and fewer complications. CONCLUSION: Among postinjury OA patients in the ICU, the use of BIA-guided fluid resuscitation resulted in a higher PFC rate and fewer severe complications than the traditional fluid resuscitation strategy.

Predictors of irreversible intestinal resection in patients with acute mesenteric venous thrombosis.

BACKGROUND: Acute mesenteric venous thrombosis (AMVT) can cause a poor prognosis. Prompt transcatheter thrombolysis (TT) can achieve early mesenteric revascularization. However, irreversible intestinal ischemia still occurs and the mechanism is still unclear. AIM: To evaluate the clinical outcomes of and to identify predictive factors for irreversible intestinal ischemia requiring surgical resection in AMVT patients treated by TT. METHODS: The records of consecutive patients with AMVT treated by TT from January 2010 to October 2017 were retrospectively analyzed. We compared patients who required resection of irreversible intestinal ischemia to patients who did not require. RESULTS: Among 58 patients, prompt TT was carried out 28.5 h after admission. A total of 42 (72.4%) patients underwent arteriovenous combined thrombolysis, and 16 (27.6%) underwent arterial thrombolysis alone. The overall 30-d mortality rate was 8.6%. Irreversible intestinal ischemia was indicated in 32 (55.2%) patients, who had a higher 30-d mortality and a longer in-hospital stay than patients without resection. The significant independent predictors of irreversible intestinal ischemia were Acute Physiology and Chronic Health Evaluation (APACHE) II score (odds ratio = 2.368, 95% confidence interval: 1.047-5.357, P = 0.038) and leukocytosis (odds ratio = 2.058, 95% confidence interval: 1.085-3.903, P = 0.027). Using the receiver operating characteristic curve, the cutoff values of the APACHE II score and leukocytosis for predicting the onset of irreversible intestinal ischemia were calculated to be 8.5 and 12 × 109/L, respectively. CONCLUSION: Prompt TT could achieve a favorable outcome in AMVT patients. High APACHE II score and leukocytosis can significantly predict the occurrence of irreversible intestinal ischemia. Therefore, close monitoring of these factors may help with the early identification of patients with irreversible intestinal ischemia, in whom ultimately surgical resection is required, before the initiation of TT.

Synthesis of Chiral Esters via Asymmetric Wolff Rearrangement Reaction.

The first asymmetric Wolff rearrangement reaction that directly converts α-diazoketones into broadly useful chiral α,α-disubstituted carboxylic esters with high enantioselectivities (up to 97.5:2.5 er) is reported. The cascade reaction proceeds through the seamless combination of visible-light-induced formation of the ketene intermediate and asymmetric ketene esterification using a readily available benzotetramisole-type catalyst.

LINC00511 knockdown prevents cervical cancer cell proliferation and reduces resistance to paclitaxel.

Cervical cancer (CC) is one of the most common female malignancies in the world. Although paclitaxel (PTX) is a critical chemotherapy agent for the treatment of CC, its treatment outcome is limited by the development of drug resistance. The present study aims to define the role of long non-coding RNA (lncRNA) LINC00511 in the progression of CC with the involvement of cell proliferation, apoptosis and resistance to PTX in Hela/PTX cells. CC and adjacent normal tissue samples were collected from 84 patients with CC, and used to determine LINC0051 expression. PTX-resistant Hela/PTX cell line was constructed, in which LINC0051 was overexpressed or silenced to further investigate the effect of LINC00511 on PTX-resistant Hela/PTX cell viability, proliferation, migration, invasion, cell cycle, apoptosis and resistance of CC cells to PTX. The expression of Bcl-2, Bax, cleaved-caspase-3, matrix metalloproteinase (MMP)-2, MMP-9, multidrug resistance protein 1 (MRP1) and P-glycoprotein (P-GP) was also assessed. High-expression of LINC00511 was found in CC with its close association with the tumor stage, tumor size and lymph node metastasis. After silencing LINC00511 expression, the expression of MRP1, P-GP, Bcl-2, MMP-2 and MMP-9 was decreased, while Bax and cleaved-caspase-3 increased with more CC cells arrested at G1 phase. Furthermore, silencing of LINC00511 could suppress cell resistance to PTX, cell viability, cell proliferation, migration and invasion yet promoted cell apoptosis in PTX-resistant Hela/PTX cells. Collectively, our findings demonstrate that silencing of LINC00511 could inhibit CC cell resistance to PTX, cell proliferation, migration and invasion, and promote cell apoptosis in CC. Silencing of LINC00511 provides a novel therapeutic target for CC.

Initial transcatheter thrombolysis for acute superior mesenteric venous thrombosis.

AIM: To determine the optimal initial treatment modality for acute superior mesenteric vein thrombosis (ASMVT) in patients with circumscribed peritonitis. METHODS: A retrospective review was made of the Vascular Surgery Department's medical records to identify adult patients (≥ 18 years old) presenting with circumscribed peritonitis and diagnosed with ASMVT by imaging or endoscopic examination. Patients were selected from the time period between October 2009 and October 2012 to assess the overall performance of a new first-line treatment policy implemented in May 2011 for patients with circumscribed peritonitis, which recommends transcatheter thrombolysis with local anticoagulation and endovascular mechanical thrombectomy. Of the 25 patients selected for study inclusion, 12 had undergone emergency surgical exploration (group 1) and 13 had undergone the initial catheter-directed thrombolysis (group 2). Data extracted from each patient's records for statistical analyses included method of diagnosis, symptoms, etiology and risk factors, thrombus location, initial management, morbidity, mortality, duration and total cost of hospitalization (in Renminbi, RMB), secondary operation, total length of bowel resection, duration of and findings in follow-up, and death/survival. RESULTS: The two treatment groups showed similar rates of morbidity, 30-d mortality, and 1-year survival, as well as similar demographic characteristics, etiology or risk factors, computed tomography characteristics, symptoms, findings of blood testing at admission, complications, secondary operations, and follow-up outcomes. In contrast, the patients who received the initial non-operative treatment of transcatheter thrombolysis had significantly shorter durations of admission to symptom elimination (group 1: 18.25 ± 7.69 d vs group 2: 7.23 ± 2.42 d) and hospital stay (43.00 ± 13.77 d vs 20.46 ± 6.59 d), and early enteral or oral nutrition restoration (20.50 ± 5.13 d vs 8.92 ± 1.89 d), as well as significantly less total length of bowel resection (170.83 ± 61.27 cm vs 29.23 ± 50.24 cm) and lower total cost (200020.4 ± 91505.62 RMB vs 72785.6 ± 21828.16 RMB) (P < 0.05 for all). Statistical analyses suggested that initial transcatheter thrombolysis is correlated with quicker resolution of the thrombus, earlier improvement of symptoms, stimulation of collateral vessel development, reversal of intestinal ischemia, receipt of localizing bowel resection to prevent short bowel syndrome, shorter hospitalization, and lower overall cost of treatment. CONCLUSION: For ASMVT patients with circumscribed peritonitis, early diagnosis is key to survival, and non-operative transcatheter thrombolysis is feasible and effective as an initial treatment.

[Novel surgery for refractory mixed constipation: analysis of the technical notes and outcome to Jinling procedure].

OBJECTIVE: To discuss a new surgical strategy: Jinling procedure (subtotal colectomy combined with modified Duhamel procedure), of which the indications, technical notes and outcomes were analyzed. METHODS: The 590 patients with refractory slow-transit constipation associated with outlet obstruction was strictly included between February 2000 and December 2011. The patients included 103 males and 487 females. Their age were 14-75 years (average 42 ± 13). The 412 patients received laparoscopic-assistant Jinling procedure, and 178 patients with open Jinling procedure. The pre- and post-operation data were collected. The follow up rate were 100%, 98.1%, 95.8% and 92.7% at 3, 6, 12 and 24 months. RESULTS: There was no surgery-related death. Mean hospital day was (12 ± 9) days. Most complications were managed conservatively without significant events. The common complications after surgery were adhesive intestinal obstruction (9.2%), anastomosis bleeding (8.1%) and anastomosis leakage (2.9%). The gastrointestinal quality of life index score was 72 ± 9 preoperatively and increased to 68 ± 11, 99 ± 6, 105 ± 9, 106 ± 9 at 3, 6, 12 and 24 month follow-up, respectively (t = 62.1, -25.1, -126.5, -143.2, P < 0.01). The Wexner constipation scale was 21.9 ± 4.5 preoperatively and decreased to 9.6 ± 2.4, 5.9 ± 2.1, 4.6 ± 1.9, 4.5 ± 1.8 at 3, 6, 12 and 24 month follow-up, respectively (t = 48.6, 61.8, 58.2, 45.9, P < 0.01). The satisfactory rate was 77.5%, 92.1%, 93.0% and 94.1% at 3, 6, 12, and 24 month follow-up. CONCLUSIONS: Jinling procedure provides a good surgical option for refractory slow-transit constipation associated with outlet obstruction.

[The immunomodulatory effects of hypertonic saline on sepsis patients].

OBJECTIVE: To approach the immunomodulatory effects of hypertonic saline (HTS) on sepsis patients. METHODS: Twenty-four septic patients admitted to surgical intensive care unit (SICU) received 5% HTS for fluid resuscitation were prospectively enrolled from January 2009 to September 2010. Blood samples were collected at 15 minutes before, and at 15 minutes and 6, 12, and 24 hours after HTS infusion, the ability of respiratory burst of polymorphonuclear neutrophils (PMN) and the surface expression of CD11b and L-selectin in fresh whole blood was evaluated with flow cytometer. The plasma was collected to determine the solubility intercellular adhesion molecule-1 (sICAM-1), solubility L-selectin (sL-selectin), tumor necrosis factor-α(TNF-α) and interleukins (IL-6, IL-1ß). RESULTS: The baseline before HTS infusion was set as 100. Six hours after HTS infusion, the ability of respiratory burst of PMN was significantly increased [(160.0±19.6)%] compared with the baseline (P<0.05), and then gradually recovered to normal level. The expression of CD11b and L-selectin in the surface of PMN was reduced rapidly at 15 minutes after HTS infusion, and to nadir at 12 hours [(70.4±5.7)%, (70.6±8.1)%], and L-selectin recovered to the normal level at 24 hours. Within short-term of HTS infusion, plasma inflammatory factor TNF-α was significantly decreased, and sustained a low level until 12 hours, and then gradually increased. There was no change in IL-1ß. IL-6 and sICAM-1 was gradually increased, and peaked at 24 hours and 12 hours respectively, and remained at a high level. sL-selectin increased shortly at 15 minutes after HTS infusion compared with baseline, and remained the level to 12 hours, and recovered to baseline at 24 hours. CONCLUSIONS: Delayed administration of HTS may have an immunomodulatory effect on sepsis patients, which could inhibit the activation of PMN.

The effect of intra-abdominal hypertension incorporating severe acute pancreatitis in a porcine model.

INTRODUCTION: Abdominal compartment syndrome (ACS) and intra abdominal hypertension(IAH) are common clinical findings in patients with severe acute pancreatitis(SAP). It is thought that an increased intra abdominal pressure(IAP) is associated with poor prognosis in SAP patients. But the detailed effect of IAH/ACS on different organ system is not clear. The aim of this study was to assess the effect of SAP combined with IAH on hemodynamics, systemic oxygenation, and organ damage in a 12 h lasting porcine model. MEASUREMENTS AND METHODS: Following baseline registrations, a total of 30 animals were divided into 5 groups (6 animals in each group): SAP+IAP30 group, SAP+IAP20 group, SAP group, IAP30 group(sham-operated but without SAP) and sham-operated group. We used a N(2) pneumoperitoneum to induce different levels of IAH and retrograde intra-ductal infusion of sodium taurocholate to induce SAP. The investigation period was 12 h. Hemodynamic parameters (CO, HR, MAP, CVP), urine output, oxygenation parameters(e.g., S(v)O(2), PO(2), PaCO(2)), peak inspiratory pressure, as well as serum parameters (e.g., ALT, amylase, lactate, creatinine) were recorded. Histological examination of liver, intestine, pancreas, and lung was performed. MAIN RESULTS: Cardiac output significantly decreased in the SAP+IAH animals compared with other groups. Furthermore, AST, creatinine, SUN and lactate showed similar increasing tendency paralleled with profoundly decrease in S(v)O(2). The histopathological analyses also revealed higher grade injury of liver, intestine, pancreas and lung in the SAP+IAH groups. However, few differences were found between the two SAP+IAH groups with different levels of IAP. CONCLUSIONS: Our newly developed porcine SAP+IAH model demonstrated that there were remarkable effects on global hemodynamics, oxygenation and organ function in response to sustained IAH of 12 h combined with SAP. Moreover, our model should be helpful to study the mechanisms of IAH/ACS-induced exacerbation and to optimize the treatment strategies for counteracting the development of organ dysfunction.

Beneficial effect of hypertonic saline resuscitation in a porcine model of severe acute pancreatitis.

OBJECTIVE: Hypertonic saline (HTS) solution resuscitation has been used in a variety of clinical settings. The aim of this study was to assess the effect of HTS resuscitation on hemodynamics, systemic oxygenation, and organ damage in a porcine model of severe acute pancreatitis. METHODS: Eighteen anesthetized and mechanically ventilated pigs were divided into 3 groups: HTS group, lactated Ringer solution (LR) group, and sham-operated group. Severe acute pancreatitis was induced in the first 2 groups by injecting 5% sodium taurocholate into the pancreatic duct, and the investigation period was 12 hours. Hemodynamic parameters, urine output, oxygenation parameters, and serum parameters were recorded consecutively. Finally, histologic examinations of the kidney, intestine, pancreas, and lung were performed. RESULTS: In the HTS group, cardiac output decreased less significantly compared with the LR group. Furthermore, aspartate aminotransferase, creatinine, and lactate levels increased significantly in all animals with severe acute pancreatitis, but the increasing tendency was slower in the HTS group. Nevertheless, the histopathologic analysis revealed similar injuries of the kidney, intestine, pancreas, and lung between the HTS and LR groups. CONCLUSIONS: Early administration of HTS generally improves hemodynamics and peripheral oxygenation. Despite these normalized parameters, organ damage could not be diminished to a significant degree during observation.

[Surgical innovation for refractory constipation (Jinling procedure): a long-term follow-up of its safety and efficacy].

OBJECTIVE: To propose a novel surgical procedure for refractory constipation, namely Jinling procedure, and to explore its safety and efficacy through long-term follow-up. METHODS: A total of 614 patients with refractory constipation were admitted to the Department of General Surgery between February 2000 and June 2011. Five hundred and fifty-four patients received Jinling procedure and were included in this study. The general clinical data, complications after Jinling procedure, gastrointestinal quality of life index (GIQLI), Wexner constipation scale and satisfaction rate during follow-up were collected. RESULTS: No operation-associated death occurred. Increased bowel movement frequency was observed during the perioperative period. Temporary difficulty in urination occurred in 24.5% of the patients. Other complications included small bowel obstruction (9.6%), anastomotic bleeding (8.1%), anastomotic leakage (3.1%), sexual dysfunction (3.1%), and wound infection (3.1%). Most postoperative complications were managed conservatively. The most recent follow-up was on August 2011, and the follow-up rate was 100%, 88.8%, 75.1%, 56.3% at 3, 6, 12, and 24 months after surgery. GIQLI temporarily increased from 78.1±9.4 preoperatively to 92.0±9.5 at 3 months follow-up, but continued to decrease during the follow-up at the 6 months (48.4±14.1), 12 months (21.0±4.3), and 24 months (20.0±3.4). Wexner constipation scale decreased from 19.9±4.3 preoperatively to 8.4±2.1 at 3 months follow-up (P<0.01). The low Wexner scale sustained until 24 months after operation. The satisfaction rate at the 3, 6,12 and 24 months follow-up was 78.1%, 91.1%, 94.2% and 94.6%, respectively. CONCLUSION: Jinling procedure provides refractory constipation patients with a novel, safe and effective surgical option.

[Changes of defecography pre- and post-Jinling procedure for mixed constipation: a prospective single center study].

OBJECTIVE: To evaluate the anatomy and functional changes of pelvis before and after Jinling procedure (subtotal colectomy and side-to-side colorectal anastomosis) using defecography. METHODS: Fifty patients with refractory mixed constipation received Jinling procedure in the Jinling Hospital between March 2009 and December 2010 and were included in this prospective study. The defecography was performed at one week before surgery and 6 months after Jinling procedure. Longo outlet obstructed score, Wexner constipation score and Wexner incontinence score were also recorded before and after the procedure. RESULTS: After 6 months follow-up, defecography showed that anterior rectocele, prolapse, intussusception, and descending perineum were significantly improved (P<0.01). Anterior rectoceles were significantly reduced in depth from 22.0±1.8 mm to 2.4±0.4 mm (P<0.01). Intussusception decreased from 1.9±0.4 cm to 0.4±0.5 cm (P<0.01). Compared with preoperative score, Longo score and Wexner constipation score were significantly improved from 17.6±3.8 to 5.3±2.0 and from 19.5±4.8 to 5.5±2.4, respectively (P<0.01). CONCLUSIONS: Jinling procedure can correct the anatomy and functional pelvic disorders in mixed constipation. Clinical improvement of obstructed defecation syndrome after Jinling procedure correlates well with morphologic correction of the rectal redundancy.

[Effect of liquid resuscitation on homeostasis of patients with severe acute pancreatitis].

OBJECTIVE: To evaluate the effect of liquid resuscitation on acid-base balance and electrolytes of patients with severe acute pancreatitis (SAP). METHODS: According to the target of liquid resuscitation, 22 patients with SAP involved in this self-controlled prospective study received sufficient liquid resuscitation in acute stage of acute pancreatitis. The results of blood gas analysis, acid-base balance and electrolytes were compared before and after liquid resuscitation. The correlation between the volume of liquid used in resuscitation and the level of blood chlorine was analyzed. RESULTS: The mean resuscitation duration was (15.0±2.4) hours, and the volume of liquid resuscitation was 3 4594 203 ml, with mean volume (3 910± 102) ml in 22 patients; blood sodium (mmol/L) and chlorine (mmol/L) levels were both significantly higher after resuscitation compared with those before resuscitation (Na(+): 145.83±1.85 vs. 139.67±2.25, Cl(-): 117.33±1.64 vs. 101.83±1.77, both P<0.05). Blood pH value, hematocrit (Hct), anion gap (AG, mmol/L), blood lactic acid (mmol/L) were slightly lowered after resuscitation (pH value: 7.39±0.02 vs. 7.42±0.02, Hct: 35.63±1.58 vs. 46.85±2.38, AG: 8.02±1.21 vs. 14.47±0.89, blood lactic acid: 1.10±0.18 vs. 1.97±0.15, P<0.05 or P <0.01). In addition, the level of blood chlorine was significantly correlated with the volume of liquid used in resuscitation (r=0.720 8,P<0.01). CONCLUSION: The target of liquid resuscitation in patients with SAP should be cautiously determined, including control of the volume of liquid for resuscitation, in order to avoid acid-base imbalance or hyperchloraemia. At the same time, the change in internal environment should be monitored.