Impact of Body Mass Index on Postoperative Outcome of Advanced Gastric Cancer After Curative Surgery

Introduction

The impact of body mass index (BMI) on the outcome of advanced gastric cancer surgery is controversial. Between December 1987 and December 2006, a total of 947 advanced gastric cancer patients receiving curative resection with retrieved lymph node number >15 were studied and divided into three groups according to BMI (<25, 25–30, and >30 kg/m²).

Results and Discussion

With regard to comorbidities present prior to surgery, higher BMI patients were more likely to have heart disease, type 2 diabetes, and hypertension than lower BMI patients. Compared with BMI <25 kg/m², higher BMI patients had longer operative time and more surgery-related morbidity. Multivariate Cox proportional-hazard analysis showed that age, pathological T and N categories, and lymphovascular invasion were independent prognostic factors. The initial recurrence patterns, 5-year overall survival, and cancer-specific survival were similar among the three groups.

Conclusion

Only in stage III gastric cancer with BMI less than 25 kg/m² patients receiving total gastrectomy had a more advanced pathological N category and a worse prognosis compared to those receiving subtotal gastrectomy. Higher BMI was associated with longer operative time and more surgery-related morbidity than lower BMI. BMI alone is not an independent prognostic factor.     

胃癌手术后并发症的防治策略

胃癌在我国各种恶性肿瘤中发病率居首位.根治性手术切除是治愈肿瘤的重要方法,姑息性切除可以改善患者的生存质量.积极的手术治疗是胃癌治疗的关键.但胃癌手术后并发症不可忽视,其发生率因术式的不同而有所差别,在15%～40%之间.胃癌术后并发症近期有感染、出血、吻合口瘘、肠梗阻、胰腺炎、心肺等器官损害、耐甲氧西林金葡菌(methicillin-resistant staphylococcus aureus, MRSA)肠炎等,远期可有吻合口狭窄、倾倒综合征、营养不良等.术后并发症的发生给治疗带来了困难,直接影响患者的预后.因此,减少或防止并发症的发生非常重要.笔者结合多年的临床诊治经验,对胃癌手术后并发症的防治提出几点策略.     

Postoperative Bleeding Complications after Gastric Cancer Surgery in Patients Receiving Anticoagulation and/or Antiplatelet Agents

Background

Perioperative antithrombotic treatment for gastric cancer patients receiving chronic anticoagulation and/or antiplatelet agents requires an understanding of potential bleeding and thromboembolic risks. However, no study has examined the safety aspects of perioperative antithrombotic treatment during radical gastrectomy. This study sought to evaluate postoperative bleeding and thromboembolic complications after radical gastrectomy in patients undergoing perioperative antithrombotic treatment.

Methods

The medical records of patient treated by radical gastrectomy from January 2006 to December 2010 were retrospectively reviewed. Those in the thromboprophylaxis group had received one of three regimens of perioperative antithrombotic treatment according to the clinical indications of chronic anticoagulation and/or antiplatelet agents and several published evidence-based recommendations: (1) bridging therapy with unfractionated heparin; (2) continuation of aspirin; or (3) both 1 and 2. multivariate analysis was used to identify risk factors for postoperative bleeding complications after radical gastrectomy.

Results

During the study period, 340 patients underwent radical gastrectomy. Of these, 62 patients received perioperative antithrombotic treatment; this thromboprophylaxis group had a significantly higher postoperative bleeding rate (8.1 vs. 0.7?%, P?=?0.003). However, other complications, including thromboembolic events, were similar in the two study groups. Multivariate analysis revealed that perioperative antithrombotic treatment was the only independent risk factor of postoperative bleeding complications after radical gastrectomy (odds ratio, 8.53; 95?% confidence interval, 1.47?C49.39; P?=?0.017).

Conclusions

Perioperative antithrombotic treatment is an independent risk factor of postoperative bleeding complications in patients with gastric cancer undergoing radical gastrectomy, although such treatment was effective in preventing postoperative thromboembolic events.     

Fast-track Surgery Improves Postoperative Recovery in Patients with Gastric Cancer: A Randomized Comparison with Conventional Postoperative Care

Background

Fast-track surgery is a new, promising comprehensive program for surgical patients and is beneficial to recovery. Prospective randomized, controlled clinical trials involving fast-track surgery for gastric cancer are lacking.

Patient and methods

Ninety-two patients with gastric cancer were randomly divided into a fast-track surgery group (n?=?45) and conventional surgery group (n?=?47). We compared outcomes (duration of postoperative stay in hospital, fever, and flatus, complications, and medical costs); postoperative serum levels of tumor necrosis factor-α, interleukin-6, and C-reactive protein; and resting energy expenditure between two groups.

Results

Compared with the conventional surgery group, the fast-track surgery group had no more complications (P?>?0.05) with a significantly shorter duration of fever, flatus, and hospital stay, and less medical costs as well as a higher quality of life score on hospital discharge (all P?<?0.05). With a significantly lower resting energy expenditure (days?1 and 3) postoperatively (P?<?0.05), the fast-track surgery group showed a lower serum level of tumor necrosis factor-α (days?1 and 3), interleukin-6 (days?1 and 3), and C-reactive protein (days?1, 3, and 7) than the conventional surgery group (all P?<?0.05).

Conclusions

Fast-track surgery can lessen postoperative stress reactions and accelerate rehabilitation for patients with gastric cancer.     

老年胃癌患者术后严重并发症的相关因素分析

目的探讨影响老年胃癌患者术后严重并发症的主要因素。方法回顾性分析2003年1月至2008年12月期间在吉林大学中日联谊医院接受手术治疗的老年胃癌患者202例,以术后是否发生并发症及严重程度分为有和无严重并发症组,分别从临床因素和实验室检查两方面分析老年胃癌患者术后出现严重并发症的相关因素。结果在临床指标中,术前有并存症、行全胃切除、术中出血量≥800 ml、术中输血量以及联合脏器切除与手术后严重并发症相关(P<0.05)。实验室检查指标中,术前血清白蛋白值及术后第1天血糖值与手术后严重并发症相关(P<0.05)。结论术前有并存疾病、低蛋白血症以及扩大根治手术是老年胃癌患者术后出现严重并发症的危险因素。     

Prediction of Postoperative Mortality in Patients with Organ Failure After Gastric Cancer Surgery

World Journal of Surgery - Scarce data are available on the characteristics of postoperative organ failure (POF) and mortality after gastrectomy. We aimed to describe the causes of organ failure...     

Prognostic Significance of Complications after Curative Surgery for Gastric Cancer

Background

Postoperative complications such as anastomotic leakage were reported to be a major independent prognostic factor for long-term survival in gastrointestinal malignancies. This study sought to clarify the prognostic significance of postoperative inflammatory complications specifically for patients with gastric cancer.

Methods

This study included 1,395 patients who underwent curative resection for gastric cancer from 2005 to 2008. Complications were evaluated according to the Clavien-Dindo classification. Overall survival (OS) and disease-specific mortality (DSM) were compared between complication and no-complication groups. Presence of complications was modeled by the Cox proportional hazard model for OS and the Fine and Gray competing risk regression model for DSM to assess the correlation between complication and prognosis.

Results

The median follow-up time was 3.1 years. Two hundred seven patients (14.8 %) had complications of grade 2 or higher. Of 131 patients who died within this period, 87 died of gastric cancer. The 3-year OS in the complication group was 84.1 % compared to 93.1 % in the no-complication group (P < 0.0001). The cumulative incidence of DSM was also significantly worse in patients with complications (P < 0.0001). Multivariate analysis identified the same significant increasing risk of complication for both OS (hazard ratio 1.88; 95 % confidence interval 1.26–2.80) and DSM (hazard ratio 1.90; 95 % confidence interval 1.19–3.02).

Conclusions

Postoperative complications that can cause prolonged inflammation have an obvious impact not only on the OS but also on the DSM of patients with gastric cancer even if the tumor is resected curatively.     

Thromboembolic Prophylaxis as a Risk Factor for Postoperative Complications after Breast Cancer Surgery

Hematoma and bruising (sugillation) are frequent problems after operations for primary breast cancer. In the present study we evaluated the influence of various methods of perioperative thromboembolic prophylaxis on the postoperative incidence of hematoma and suggilation. From June 1994 through August 1996, a series of 425 patients consecutively operated on for primary breast cancer were included. Thromboembolic prophylaxis was low-molecular-weight heparin (LMWH) in 310 patients and thigh-long graded compression (TED) stockings in 102 patients. Postoperative complications including deep vein thrombosis, pulmonary embolism, wound hematoma, and sugillation were recorded, and 17 variables with a potential influence on complications were analyzed by logistic regression analysis. Heparin prophylaxis compared to prophylaxis with TED stockings was significantly and independently associated with postoperative hematoma [odds ratio (OR) 3, 13; 95% confidence interval (CI) 1.38–7.13] or sugillation (OR 3.34; 95% CI 1.93–5.78). No clinically overt thromboembolic complications were diagnosed. After operations for breast cancer we found that LMWH was significantly associated with postoperative hematoma and sugillation compared to TED stockings for perioperative thromboembolic prophylaxis.     

Cancer-Related Fatigue After Esophageal Cancer Surgery: Impact of Postoperative Complications

Annals of Surgical Oncology - The impact of postoperative complications on cancer-related fatigue is unknown. This nationwide prospective cohort study aimed to assess the trajectory of...     

Risk Factor Analysis of Postoperative Complications After Robotic Rectal Cancer Surgery

Background  

The robotic system has been adopted as the new modality for minimally invasive surgery for rectal cancer. However, analysis of risk factors for complications after robotic rectal cancer surgery (RRS) has been limited. This study aimed to identify the risk factors for complications after RRS.     

Body Mass Index as a Predictor of 1-year Outcome in Gastric Bypass Surgery

Background  The aim of this study was to determine if presurgery (T1), post-surgery (T2), or the change in body mass index (BMI) between these time points are useful predictors for predicting longer-term (T3) outcome in gastric bypass surgery. Methods  The sample consisted of 72 gastric bypass surgery patients with an average age of 40.5. The mean presurgery BMI was 54.7 (SD = 8.6). T2 assessments (BMI, depressed mood, binge eating status) occurred on average 21 weeks (SD = 19) after surgery and T3 assessments occurred on average 63 weeks (SD = 34) after surgery. Results  Three separate hierarchical linear regressions were performed to assess the predictive value of (1) BMI at T1, (2) BMI at T2, and (3) change in BMI from T1 to T2 on the dependent variable, BMI at T3, when age, sex, ethnicity, education status, age of overweight, binge eating status, depressed mood, and number of weeks after surgery were controlled for. When these demographic and psychological variables were controlled for, lower BMI at T1 and lower BMI at T2 predicted lower BMI at T3. However, change in BMI from T1 to T2, did not significantly predict BMI at T3 (p < .001). Conclusions  Higher presurgery BMI and post-surgery BMI predict poorer 1-year follow-up BMI in gastric bypass surgery, and these measures can be used as easy “rules of thumb” for predicting longer term outcome.     

Early Postoperative Intraperitoneal Chemotherapy Following Cytoreductive Surgery in Patients with Very Advanced Gastric Cancer

Background The survival of patients with stage IV gastric cancer is poor due to frequent peritoneal failure. The aim of this study was to investigate the impact of early postoperative intraperitoneal chemotherapy (EPIC) after cytoreductive surgery on the long-term survival of these patients, as determined by residual disease status. Methods A total of 154 patients with stage IV gastric cancer were enrolled in our study. All patients underwent potentially curative or palliative resections. After surgery, the residual disease states of the patients were recorded. All patients received EPIC. Results Of all 154 patients, R0 resection was achieved in 37, R1 in 56, and R2 in 61. All patients received a mean of 4.3 EPIC perfusions. After a mean followup period of 29 months, 14 patients remained alive. The median survival of all 154 patients was 11.4 months. Survival times were analyzed according to the type of residual tumor; the median survival time was 25.5 months in the R0 group, 15.6 months in the R1 group, and 7.2 months in the R2 group (p < .001). Upon multivariate analysis, the residual tumor states and the cycle of EPIC perfusion were found to be independent prognostic predictors (p < .001 and p = .018, respectively). Conclusions The residual tumor status is the most important predictor for the survival of very advanced gastric cancer patients who received cytoreductive surgery and EPIC. Therefore, complete cytoreductive surgery yielding R0 resection is mandatory for achieving the beneficial effects of EPIC. J.-H. Cheong and J. Y. Shen contributed equally to this work.     

Sarcopenic Obesity Is Associated with Severe Postoperative Complications in Gastric Cancer Patients Undergoing Gastrectomy: a Prospective Study

Objective

This study aimed to determine the risk of severe postoperative complications (SPCs) in patients with gastric cancer and to construct a nomogram based on independently related factors to identify high-risk patients.

Methods

We conducted a prospective study of 636 consecutive patients with gastric cancer who underwent radical gastrectomy. Degrees of sarcopenia and obesity were calculated before surgery. Factors contributing to SPCs were determined using univariate and multivariate analysis. A nomogram consisting of the independent risk factors was constructed to quantify the individual risk of SPCs.

Results

Logistic analysis revealed that sarcopenic obesity, age, open surgery, and combined resection were independent prognostic factors for SPCs. Sarcopenic obese patients have the highest risk in all patients (sarcopenic obesity vs normal, OR?=?6.575 p?=?0.001; sarcopenic obesity vs obesity, OR?=?5.833 p?=?0.001; sarcopenic obesity vs sarcopenia, OR?=?2.571 p?=?0.032), while obese patients share the similar rate of SPCs with normal people (obesity vs normal, OR?=?1.056 p?=?0.723). The nomogram we constructed was able to quantify the risk of SPCs reliably (c-index, 0.737).

Conclusions

Sarcopenic obesity, together with age, open surgery, and combined resection are independent predictors of SPCs. Obesity will significantly increase the risk of SPCs in sarcopenic patient with gastric cancer, but it will not bring higher risk to normal patients. Our nomogram is a simple and practical instrument to identify patients at high risk of surgical complications.

     

Body Mass Index Does Not Affect Systematic D2 Lymph Node Dissection and Postoperative Morbidity in Gastric Cancer Patients

Background: The extent of standard lymph node dissection (D1, D2, or D3) in gastric cancer patients is still controversial. Several prospective European trials attained contradictory results. A generally increased body mass index (BMI) of the European patients was assumed to be one of the major causes for postoperative morbidity.Methods: We evaluated the effect of BMI on the quality of routine D2 lymph node dissection and on postoperative morbidity in patients with gastric cancer who underwent a potentially curative total gastrectomy. A total of 199 consecutive gastric cancer patients who underwent a total gastrectomy and a routine D2 lymph node dissection between 1992 and 2001 were included in the study. According to BMI, they were assigned to three groups: group A, with BMI <25 kg/m² (normal body weight); group B, with BMI of 25 to 30 kg/m² (overweight); and group C, with BMI >30 kg/m² (obesity). Parameters such as complete histopathological staging, intraoperative blood loss, length of operation, and surgical and nonsurgical morbidity were recorded and correlated within the different groups.Results: No significant differences were found with regard to the number of examined lymph nodes, blood loss, length of operation, surgical complications, or length of stay in the intensive care unit.Conclusions:In contrast to comparable Japanese studies, our analysis reveals that even for overweight patients, a standard D2 lymph node dissection is justified without significantly increased morbidity.     

Poor Survival Rate in Patients with Postoperative Intra-Abdominal Infectious Complications Following Curative Gastrectomy for Gastric Cancer

Background

The impact of postoperative complications on recurrence rate and long-term outcome has been reported in patients with colorectal and esophageal cancer, but not in patients with gastric cancer. This study evaluated the impact of postoperative intra-abdominal infectious complications on long-term survival following curative gastrectomy.

Methods

This study included 765 patients who underwent curative gastrectomy for gastric cancer between 2002 and 2006. Patients were divided into 2 groups: with (C-group, n = 81) or without (NC-group, n = 684) intra-abdominal infectious complications. Survival curves were compared between the groups, and multivariate analysis was conducted to identify independent prognostic factors.

Results

Male patients were dominant, and total gastrectomy was frequently performed in the C-group. The pathological stage was more advanced and D2 lymph node dissection and splenectomy were preferred in the C-group. The 5-year overall survival (OS) rate was better in the NC-group (86.8 %) than in the C-group (66.4 %; P < .001). The 5-year relapse-free survival (RFS) rate was also better in the NC-group (84.5 %) than in the C-group (64.9 %; P < .001). This trend was still observed in stage II and III patients after stratification by pathological stage. Multivariate analysis identified intra-abdominal infectious complication as an independent prognostic factor for OS (hazard ratio, 2.448; 95 % confidence interval [95 % CI], 1.475–4.060) and RFS (hazard ratio, 2.219; 95 % CI, 1.330–3.409) in patients with advanced disease.

Conclusions

Postoperative intra-abdominal infectious complications adversely affect OS and RFS. Meticulous surgery is needed to decrease the complication rate and improve the long-term outcome of patients following curative gastrectomy.     

Clinicopathologic Characteristics of Elderly with Gastric Cancer,and the Risk Factors of Postoperative Complications

Purpose: In China, gastric cancer (GC), which is one of the most common malignant tumors, has an increasing incidence in elderly population due to aging process. Since a considerable number of elderly patients with GC accepting surgical treatments developed postoperative complications, it is necessary to evaluate risk factors for postoperative complications. Materials and methods: In the present study, the clinicopathologic characteristics of 3,024 elderly patients (aged ≥65 years) with GC, who underwent surgery between 1996 and 2006, were examined and contributing factors for postoperative complications were analyzed. A total of 2,915 non-elderly patients (aged <65 years) with GC during the same period were enrolled as a control group. Clinicopathologic characteristics of non-elderly patients were investigated and compared with elderly group. Results: As to clinicopathologic characteristics, significant differences were detected in terms of location of primary lesions between elderly patients and non-elderly patients (p <.05), whereas no statistical difference was observed in other characteristics between two groups (p >.05). Surgical property and method in elderly patients were similar to that in non-elderly patients (p >.05). Regression analysis showed that diabetes, chronic pulmonary disease, preoperative anemia, preoperative hypoalbuminemia, combined organ excision, and blood transfusion were independent factors for complications in elderly patients (p <.05), with some differences from non-elderly group. Conclusions: Elderly group with GC had distinctive clinicopathologic characteristics. Surgery remains principal treatment for elderly, and proper preoperative measures are required to decrease postoperative complications.     

Association of Splenectomy With Postoperative Complications in Patients With Proximal Gastric and Gastroesophageal Junction Cancer

Background: Splenectomy has been associated with increased morbidity after gastrectomy for gastric cancer. Resection of proximal versus distal tumors is associated with a higher morbidity. Because splenectomy is more commonly performed in resection of proximal tumors, these analyses may be biased. The aim of this study was to describe the association of splenectomy with complications in patients undergoing resection of proximal gastric and gastroesophageal junction (GEJ) cancers.Methods: From July 1985 to August 2001, 335 patients underwent resection of proximal gastric or GEJ (type II and III) cancers. Clinical and pathologic factors were retrieved from a prospective database.Results: Overall morbidity was 59% (infectious complications, 41%; noninfectious complications, 36%), and mortality was 4.5%. Splenectomy was associated with a higher rate of infectious complications (57% vs. 33%; P < .01) but not of noninfectious complications (39% vs. 34%; not significant) or mortality (4% vs. 5%; not significant). Splenectomy was also associated with a higher rate of infectious complications on multivariate analysis (hazard ratio, 2.4; P < .01).Conclusions: Morbidity after resection of proximal gastric and GEJ cancer is significant; splenectomy is associated with increased morbidity, but not mortality, in these patients. Because these complications can be managed without an increase in mortality, splenectomy should be performed when indicated by the extent of the tumor.