The application of nutrition support in conservative treatment of chylous ascites after abdominal surgery

Postoperative Chylous Ascites in Gynecological Malignancies: Two Case Reports and a Literature Review

Aim

To explore the potential factors that influence the presentation and recovery of postoperative chylous ascites (CA) in gynecological malignancies.

Methods

We reported two cases of postoperative CA following gynecological surgery and reviewed the clinical features of 140 patients from 16 relevant papers. Patients' clinicopathological characteristics, surgical approach, and management were summarized. The onset and resolution times of postoperative CA in different groups were analyzed separately.

Results

The two patients in our report had recovery after conservative treatments. According to the literature review, the median time of onset of postoperative CA was 5 days (range, 0-75 days) after surgery. The median resolution time was 9 days (range, 2-90 days). Among patients, 87.14% of them had lymphadenectomy during gynecological surgeries, while 92.86% of the patients had resolution after conservative treatments.

Conclusions

Lymphadenectomy during surgery may be relevant to the postoperative CA. Conservative management could be the initial choice for postoperative CA treatment.

Nomogram for predicting chylous ascites after right colectomy

BACKGROUND

Chylous ascites following right colectomy has a high incidence which is a critical challenge. At present, there are few studies on the factors affecting chylous ascites after right colectomy and especially after D3 Lymphadenectomy. A predictive model for chylous ascites has not yet been established. Therefore, we created the first nomogram to predict the incidence of chylous ascites after right hemicolectomy.

AIM

To analyze the risk factors for chylous ascites after right colectomy and establish a nomogram to predict the incidence of chylous ascites.

METHODS

We retrospectively collected patients who underwent right hemicolectomy between January 2012 and May 2021 and were pathologically diagnosed with cancer. Multivariate logistic regression was used to analyze the influencing factors of chylous ascites and a nomogram was established. The predictive ability was assessed by the area under the receiver operating characteristic (ROC) curve.

RESULTS

Operative time, the type of operation (standard or extended), the number of lymph nodes retrieved, and somatostatin administration were considered important risk factors. Multivariate logistic regression and nomograms can be used to accurately predict whether chylous ascites occurs. The area under the ROC curve of the model is 0.770. The C-statistic of this model is 0.770 which indicates that it has a relatively moderate ability to predict the risk of chylous ascites.

CONCLUSION

We found a novel set of risk factors, created a nomogram, and validated it. The nomogram had a relatively accurate forecasting ability for chylous ascites after right hemicolectomy and can be used as a reference for risk assessment of chylous ascites and whether to prevent it after surgery.

Lymphatic leakage after pelvic lymphadenectomy for cervical cancer: a retrospective case-control study

BACKGROUND

The study aims to evaluate the clinical features and management of postoperative lymphatic leakage (PLL) in patients with cervical cancer who received pelvic lymphadenectomy.

METHODS

This retrospective study screened consecutive patients with cervical cancer (stage Ia2-IIb).

RESULTS

Among 3427 cases screened, 63 patients (1.8%) were diagnosed with PLL, which manifested as persistent abdominal drainage (42/63, 66.7%), chylous ascites (12/63, 19.0%) or vaginal drainage (9/63, 14.3%). Median time from surgery to onset of PLL was 6 days (range, 4-21 days). All cases resolved in a median 10 days (range, 3-56 days) after conservative treatment; although one case experienced recurrence of vaginal drainage after 26 days, this also resolved after conservative therapy. Multivariate analysis showed that two cycles of neoadjuvant chemotherapy (odds ratio [OR], 3.283; 95% confidence interval [95%CI], 1.289-8.360; P = 0.013), a decrease in hemoglobin level of ≥20 and < 30 g/L (OR, 6.175; 95%CI, 1.033-10.919; P = 0.046) or ≥ 30 g/L (OR, 8.467; 95%CI, 1.248-17.426; P = 0.029), and postoperative albumin level ≥ 30 and < 35 g/L (OR, 2.552; 95%CI, 1.112-5.857; P = 0.027) or < 30 g/L (OR, 5.517; 95%CI, 2.047-18.148; P = 0.012) were associated with PLL.

CONCLUSION

Neoadjuvant chemotherapy, postoperative anemia and postoperative hypoproteinemia are risk factors for PLL.

Postoperative chylous leak after a laparoscopic low anterior resection: a case report

Chylous leakage is an unusual event after abdominal surgery and even more during colorectal procedures. The management of this complication is already discussed in medical literature. In our case a laparoscopic low anterior resection to an 81-year-old woman with a sigmoid and rectum colon tumor was done. The fourth day after surgery postoperative chylous leakage was diagnosed. It was treated with suspension of oral feeding, total parenteral nutrition and Octreotide with a favorable resolution.

Medium-Chain Triglyceride (MCT) Content of Adult Enteral Tube Feeding Formulas and Clinical Outcomes. A Systematic Review

Available data on the effect of lipid composition of enteral formulas on clinical outcomes are controversial. The present systematic review was performed in order to verify whether the presence of specific lipidic substrates, namely medium-chain triglycerides (MCT), in enteral tube feeding formulas is associated to measurable clinical benefits in patients receiving enteral nutrition in different clinical settings, including home enteral nutrition (HEN). The results of this systematic review highlight a lack of robust evidence supporting the use of specific types of lipids in standard or disease-specific formulas. Evidence exists, however, that MCT-containing formulas are safe and well-tolerated. Further, well-designed, adequately powered, randomized controlled trials would be needed in order to assess the superiority of MCT- containing enteral formulas over other standard or disease-specific commercially available enteral products.

Application of ultrasound-guided intranodal lymphangiography and embolisation in cancer patients with postoperative lymphatic leakage

BACKGROUND

Traumatic lymphatic leakage is a rare but potentially life-threatening complication. The purpose of this study was to introduce ultrasound-guided intranodal lymphangiography and embolisation techniques for postoperative lymphatic leakage in patients with cancer.

METHODS

From January 2018 through June 2020, seven cancer patients (three males, four females, aged 59-75 years [mean 67.57 ± 6.11 years]) developed lymphatic leakage after abdominal or pelvic surgery, with drainage volumes ranging from 550 to 1200 mL per day. The procedure and follow-up of ultrasound-guided intranodal lymphangiography and embolisation were recorded. This study retrospectively analysed the technical success rate, operative time, length of hospital stay, clinical efficacy, and complications.

RESULTS

The operation was technically successful in all patients. Angiography revealed leakage, and embolisation was performed in all seven patients (7/7, 100%). The operative time of angiography and embolisation was 41 to 68 min, with an average time of 53.29 ± 10.27 min. The mean length of stay was 3.51 ± 1.13 days. Lymph node embolisation was clinically successful in five patients (5/7, 71.43%), who had a significant reduction in or disappearance of chylous ascites. The other two patients received surgical treatment 2 weeks later due to poor results after embolisation. All patients were followed for 2 weeks. No serious complications or only minor complications were found in all the patients.

CONCLUSIONS

Ultrasound-guided intranodal lymphangiography and embolisation were well tolerated by the patients, who experienced a low incidence of complications. Early intervention is recommended for cancer patients with postoperative lymphatic leakage.

Chylous ascites: Case report of a rare presentation of blunt abdominal trauma

INTRODUCTION

Chylous ascites is the accumulation of a milk-like peritoneal fluid rich in triglycerides, due to the presence of intestinal lymph in the abdominal cavity. The most common causes of chylous acites in adults are abdominal malignancy and cirrhosis. Very few cases of chylous ascites associated to blunt abdominal trauma have been published in the literature.

CLINICAL CASE

A 27-year-old, female patient was admitted to the emergency department (ED) with abdominal pain due to a deceleration-type traffic accident. During surveillance the patient presented a progressive decrease in hemoglobin levels and an increase in free intra-abdominal fluid detected on computed tomography scan. The patient underwent an exploratory laparoscopy and a milky-looking peritoneal fluid was identified. The diagnosis of chylous ascites was confirmed by the determination of increased triglyceride levels in the peritoneal fluid. A low-fat diet, with a restriction of long-chain triglycerides, was started in the post-operative period and the patient presented a progressive decrease in abdominal drainage. The patient had a favorable clinical and analytical evolution and was discharged on the fifth post-operative day.

DISCUSSION

Chylous ascites is an uncommon finding in trauma. Although surgery may be indicated in selected patients, conservative treatment can be effective in most patients, with or without abdominal drainage. A high-protein and low-fat diet, with medium-chain triglycerides, is the indicated dietary regimen to decrease the amount of lymphatic fluid produced.

CONCLUSION

Chylous ascites, although rare in trauma patients must be considered in the diferential diagnosis of free peritoneal fluid. Conservative treatment should be considered in the majority of cases reserving invasive treatments for specific situations.

The retrospective research of enteral nutrition with medium-chain triglyceride and total parenteral nutrition support of postoperative chylothorax in adults

Background:

Chylothorax is caused by thoracic lymphatic system injuries that leads to the lymph extravasating into the thoracic cavity. There are few reports comparing the therapeutic effects of enteral nutrition with medium-chain triglyceride and total parenteral nutrition, and the results are inconsistent. Our study aimed to research the optimum nutrition support method for chylothorax.

Study design:

We retrospectively reviewed 35 chylothorax patients after heart and chest surgery from 2014 to 2018, at West China Hospital of Sichuan University, among them there were 27 post-heart surgery patients. We analyzed the therapeutic effects and costs of enteral nutrition with medium-chain triglyceride (E group) and total parenteral nutrition (T group) for chylothorax.

Results:

The results were similar in patients with all surgeries and patients with only post heart surgery. The total cost during hospitalization in E group was higher than T group (P < 0.01), whereas the nutrition support cost was lower (P < 0.001). The length of hospital stay was longer in E group than T group (P > 0.05). Time from admission to surgery was shorter and from surgery to chylothorax diagnosis was longer in E group compared with T group. Time to resolution and removal of drainage was shorter in E group than T group but the differences were not significant.

Conclusion:

The therapeutic effects in enteral nutrition with medium-chain triglyceride and total parenteral nutrition had no obvious differences. Moreover, enteral nutrition with medium-chain triglyceride is safer and more economical. Therefore, we suggest that enteral nutrition with medium-chain triglyceride could be the first choice to treat postoperative chylothorax when the gastrointestinal tract function is allowed, and this result could be considered for postoperative chylous ascites.

[What is Result: Short-term Medium Chain Triglyceride Diet Effective on Postoperative Outcome in Lung Cancer Surgery? A Prospective Randomized Study]

背景与目的

中链甘油三酯(medium chain triglyceride, MCT)饮食有助于外科手术患者快速康复，本研究将短期MCT食谱应用于肺癌患者术后早期饮食，探讨肺癌患者术后应用MCT的临床效果。

方法

2015年12月-2016年3月四川大学华西胸外科单个医疗组肺癌切除术患者纳入研究患者117例，随机分为MCT组(62例)和常规饮食组(routine diet group, RDG)(55例)。分析两组患者术后白蛋白、肛门排气时间、胸腔闭式引流量及胸腔闭式引流管留置时间、术后住院日、住院费用。

结果

MCT组患者术后肛门排气时间[(27.87±14.38) h]短于RDG组[(45.18±8.62) h](P < 0.001)；术后胸腔引流管留置时间在MCT组[(75.40±48.41) h]少于RDG组[(110.64±94.19) h](P=0.025)；术后胸腔引流量在MCT[395mL]组少于RDG组[590mL](P=0.027)。术后住院日在MCT组[(5.26±2.96) d)]短于RDG组[(6.73±3.99) d](P=0.030)。血浆白蛋白术后MCT组[(37.26±2.70) g/L]高于RDG组[(35.92±3.12) g/L](P=0.023)。

结论

肺癌患者术后短期应用MCT饮食有助于改善胃肠功能快速恢复，且缩短术后住院时间。