Objective To assess the risk factors associated with postoperative infection after elective abdominal operation for elderly in department of general surgery. Methods One hundred and fifty-nine consecutive elderly patients admitted to the department of general surgery in our hospital for elective abdominal operation between May 2010 and February 2012 were considered for inclusion and retrospectively analyzed. Thirty-eight patients （23.90%）with postoperative infection were taken as the infection group and 121 patients without postoperative infection as noninfection group. The differences in the objective physiological indicators， subjective health status indicators， operation status， the incidence of postoperative infective complications， and mortality were compared between the two groups. Results Of enrolled 159 patients in this study， the incidence of postoperative infective complications was 23.90% （38/159）； 2 patients died， and the postoperative mortality rate was 1.26%. Single factor and multivariate logistic regression analysis showed that preoperative malnutrition risk， history of diabetes， and chronic respiratory system disease were the independent risk factors of postoperative infection complications in elective abdominal surgery for elderly patients. Conclusion Improving preoperative respiratory function， diabetes mellitus， and nutritional status would help to reduce incidence of postoperative infection for elderly patients with elective abdominal operation.
ObjectiveTo compare the indirect calorimetry (IC) measured resting energy expenditure (MREE) with adjusted Harris-Benedict formula calculating resting energy expenditure (CREE) in the mechanically ventilated surgical critically ill patients and to evaluate the relationship between the resting energy expenditure (REE) with the severity of illness. MethodsTwenty-one patients undergonging mechanical ventilation for critical illness in the intensive care unit of general surgery between August 2008 and February 2010 were included in this study. Data during the study period of nutrition support were collected for computation of the severity of critical illness by acute physiology and chronic health evaluation Ⅱ scores (APACHE Ⅱ scores) and organ dysfunction scores (Marshall scores). MREE was measured by using IC of the MedGraphics CCM/D System within the first 7 d after nutrition therapy. CREE was calculated by using the HarrisBenedict formula adjusted with correction factors for illness at the same time. According to APACHE Ⅱ scores on admission, the enrolled patients were divided into two groups: APACHEⅡ score ≥20 scores group (n=8) and APACHE Ⅱ score lt;20 scores group (n=13), and the differences between MREE and CREE of patients in two groups were determined. ResultsThe reduction of variation tendency in CREE other than MREE in the enrolled patients within the first week of nutritional support was statistical significance (Plt;0.001). The CREE of patients 〔(1 984.49±461.83) kcal/d〕 was significantly higher than the MREE 〔(1 563.88±496.93) kcal/d〕 during the first week of nutritional support (Plt;0.001). The MREE on the 0, 1, 2, and 4 d after nutrition therapy were statistically significant lower than CREE at the same time interval in these patients (Plt;0.01), and the differences at the other time points were not significant (Pgt;0.05). There was a trend towards a reduction in APACHE Ⅱ and Marshall scores within the first week of nutrition therapy that reached statistical significance (Plt;0.001). During the first week of nutrition therapy, APACHEⅡ and Marshall scores of patients in ≥20 scores group were significantly higher than those in lt;20 scores group, respectively (Plt;0.05 or Plt;0.01), and the reductions of APACHE Ⅱ scores and Marshall scores were significant in patients of two groups (Plt;0.001). A significant positive correlation was found between CREE with APACHE Ⅱ scores (r=0.656, Plt;0.001) and Marshall scores (r=0.608，Plt;0.001) in patients within the first week after nutrition support. Although no statistically significant correlation was observed between MREE and APACHEⅡ scores (r=-0.045， P=0.563), a significant positive correlation was observed between MREE and Marshall scores (r=0.263, P=0.001) within the first week after nutrition therapy. There was no correlation between MREE and CREE (r=0.064, P=0.408) in patients at the same time interval. The reduction of MREE of patients in ≥20 scores group other than in lt;20 scores group was statistically significant within the first week after nutrition therapy (P=0.034). In addition, the MREE of patients in ≥20 scores group were not significantly different from those in lt;20 scores group (Pgt;0.05), and the mean CREE was not different in two groups patients within the first week of nutritional therapy 〔(1 999.55±372.73) kcal/d vs. (1 918.39±375.27) kcal/d, P=0.887〕. CREE was significantly higher than MREE of patients in ≥20 scores group within the first week except the 3 d and 5 d after nutrition therapy (Plt;0.05), while in lt;20 scores group CREE was significantly higher than MREE in patients only within the first 3 d after nutrition therapy (Plt;0.05 or Plt;0.01). MREE and CREE of patients in ≥20 scores group were not different from those in lt;20 scores group, respectively (Pgt;0.05).
Objective To evaluate the effectiveness of fluid therapy on an early goal-directed approach to resuscitation basis and the standard fluid therapy of adequate resuscitation on the prognosis of severe acute pancreatitis （SAP）in early stage. Methods The clinical data of SAP patients admitted to surgical intensive care unit within 72 h after onset of symptoms from January 2000 to November 2011 were analyzed retrospectively. A total of 97 patients with a confirmed diagnosis of SAP were divided into two groups based on whether adopting the early goal-directed fluid resuscitation strategies or not. Patients admitted from January 2000 to December 2004 did not adopt the early goal-directed fluid resuscitation strategies，therefore，being allocated into standard fluid therapy group （n=34）； patients admitted from January 2005 to November 2011 adopted the early goal-directed fluid resuscitation strategies and who were allocated into early goal-directed fluid therapy group （n=63）. With the exception of the fluid therapy strategies，the two group patients received standard treatment for SAP. The acute physiology and chronic health evaluation Ⅱ score （APACHEⅡ） and multiple organ dysfunction score （Marshall）， rate of multiple organ dysfunction syndrome （MODS） within the first week after admission，pancreatic infection rate，and in-hospital mortality were compared between the two groups. Results Compared with the standard fluid therapy group on day 3 after admission，APACHEⅡ score and Marshall score decreased significantly in the early goal-directed fluid therapy group （APACHEⅡ score：7.38±4.01 versus 11.35±4.27， P=0.011；Marshall score：4.13±2.06 versus 6.82±3.15， P=0.016）. In addition，patients in the early goal-directed fluid therapy group experienced a trend toward lower rates of MODS with the first week after admission，pancreatic infection，and in-hospital mortality （rate of MODS：46.0% versus 61.8%，P=0.139；rate of pancreatic infection：31.7% versus 44.1%， P=0.226；in-hospital mortality：15.8% versus 23.5%，P=0.355） that did not reach statistical significance. Conclusion Although early goal-directed fluid therapy for SAP in acute response stage may have ameliorated the patient’s condition and improved outcome to a certain degree，carefully designed human clinical trials should be performed in a randomized controlled manner to assess the role of such fluid resuscitation in SAP.
Objective To analyze the treatment and effect of bacterial liver abscess over the past two decades in one single center. Methods The total 198 patients with bacterial liver abscess during the last twenty years were studied retrospectively. They were divided into three groups according time: 1989-1995 group, 1996-2002 group and 2003-2008 group. Gender and age of patient, location, number and size of abscesses, treatment, hospital days, morbidity of complications and mortality among the groups were compared. Results There were 54, 69, 75 cases in 1989-1995, 1996-2002 and 2003-2008 group respectively. No significant differences were found in gender and age of patient, location, number and size of abscess among three groups （Pgt;0.05）. In 1989-1995 group, 35 cases (64.8%) were treated with laparotomy, 8 cases (14.8%) with laparoscope, and 11 cases (20.4%) with percutaneous treatment (needle aspiration or catheter drainage). In 1996-2002 group, 15 cases (21.8%) were treated with laparotomy, 21 cases (30.4%) with laparoscope, 31 cases (44.9%) with percutaneous treatment (needle aspiration or catheter drainage), and 2 cases (2.9%) were treated with antibiotherapy. In 2003-2008 group, 5 cases (6.7%) were treated with laparotomy, 13 cases (17.3%) with laparoscope, 54 cases (72.0%) with percutaneous treatment (needle aspiration or catheter drainage), and 3 cases (4.0%) were treated with antibiotherapy. The constituent ratio of treatment was significantly different among three groups (P＜0.05). The hospital days was (18.5±12.2) d, (16.4±12.8) d and (20.1±14.6) d, the morbidity of complications was 9.3% (5/54), 4.3%(3/69) and 4.0%(3/75), the mortality was 3.7%(2/54), 1.4%(1/69) and 1.3% (1/75) respectively, but there were no significant differences of three indexes among three groups. Conclusion With the development of surgical techniques, effective antibiotic therapy and percutaneous treatment (needle aspiration or catheter drainage) have been the main therapeutic methods, and laparoscopy and laparotomy are necessary supplement.
【Abstract】Objective To investigate the effects of ethanol on polarization of cultured hepatocytes.Methods Sandwich hepatocytes were used to study the effects of ethanol on polarization of shortperiod cultured hepatocytes. Expression of albumin mRNA and P450-b mRNA,specific distribution of plasma membrance protein and the morphology were observed before and after ethanol was given. Results After treated ethanol, hepatocytes became flat and polynuclear. Its cellular plasma became watery and anatomical networks like board structure disappeared. Immunohistochemical method proved that the distribution of specific plasma membrane protein was damaged, and in situ hybridization studies demonstrated that the levels of albumin mRNA, P450-b mRNA expression decreased after ethanol was given.Conclusion Ethanol induces significant disturbance of cell polarization in cultured hepatocytes to result in injury. The current study is important for exploring the mechanism of alcohol liver disease from the cellular plane to provide a model.
Objective To discuss the methods of diagnosis and treatment of cystic neoplasms of pancreas. Methods Demographic data, clinical manifestations, diagnostic exams, surgical procedures, pathological diagnosis, postoperative complications, and follow-up data of 29 patients with cystic neoplasms of pancreas were analyzed retrospectively. Results There were 8 （28%） serous cystic tumors （SCN）, 12 （41%） mucinous cystic tumors （MCN）, 3 （10%） intraductal papillary mucinous tumors （IPMN）, and 6 （21%） solid pseudopapillary tumors （SPT）. Eight cases of SCN, 7 cases of MCN, 1 case of IPMN, and 5 cases of SPT were all benign. The ages of the patients were from 15 to 78 years〔average, （49±17）years〕and all tumors were more common in female （76%, 22/29）. Twenty-three cases of 29 patients were performed operations, 22 cases were underwent surgical resection, and 1 case was performed exploration and biopsy. There was no surgery-related death. The rest 6 cases were not performed operation. Twenty-one cases followed-up for 6 months to 8 years 〔average, （2.7±2.3） years〕, 8 cases didn’t followed-up. Sixteen cases with surgical resection had no recurrence during follow-up period, 1 case performed exploration and biopsy died in 1 year after operation, and 4 cases of SCN without surgery didn’t deteriorate. Conclusions The most common cystic neoplasms of pancreas are mucinous and serous cysts. These tumors are more frequent in female. Although almost all serous cysts are benign, 42% of mucinous cysts are malignant. Misdiagnosis may delay appropriate treatment and increase mortality. The resection rate of pancreatic cystic tumor is high, and the prognosis is good after radical resection.
ObjectiveTo discuss the indications of the nonoperative management for perforated peptic ulcer. MethodsClinical data of 145 patients with perforated peptic ulcer, aged below 70 years old, with first attack and onset timelt;12 h , admitted to our hospital between January 2002 and December 2009, were analyzed respectively. Patients who were negative for fluid of abdominopelvic cavity in ultrasound examination and leakage in watersoluble contrast examination received nonoperative management, otherwise underwent operation directly (If the patients were being on medication for the ulcer, they should also go directly to surgery). Non-operative patients were converted to operation if the symptom had not relieved during the first 12 h. When admitted , the APACHE Ⅱ score was calculated for all patients. ResultsSeventy-four and 71 patients underwent non-operative management and operation directly respectively. Sex, age, onset time, perforation site and so on were comparable between the two groups （Pgt;0.05）, while APACHE Ⅱ score over 8 was 25.7% and 76.1% respectively with significant difference (P=0000). In nonoperative group, 11 (149%) patients were converted to operation. The mortality (4.1% vs 9.8%, P=0.203), mobility (16.2% vs 25.3%, P=0.175), hospital stay 〔(11.4±2.5) d vs (11.3±1.3) d, P=0.447〕, and cost 〔(11 657.3±2 826.4) yuan vs (10 013.0±1 877.4) yuan, P=0.212〕 between two groups had also no significant difference. The mean APACHE Ⅱ score was significant different between the survivors and the dead (9.3 vs 20.2, P=0.000). APACHE Ⅱ score was positively related to mortality and morbility （r=0.98, P=0.000； r=0.52, P=0.000）. ConclusionsNon-operative management is a safe and effective way in selected patients with perforated peptic ulcer, such as APACHE Ⅱ score ≤8, negative for fluid of abdominopelvic cavity in ultrasound examination, and leakage in water-soluble contrast examination. APACHE Ⅱ score is an important factor in prognosis of these patients.