Preoperative Nutritional Status and Clinical Complications in the Postoperative Period of Cardiac Surgeries

The effects of preoperative supplementation with a combination of beta-hydroxy-beta-methylbutyrate, arginine, and glutamine on inflammatory and hematological markers of patients with heart surgery: a randomized controlled trial

Background

Cardiac surgery is associated with a widespread inflammatory response, by an additional release of free radicals. Due to the importance of these patient’s nutritional status, the present study was designed to evaluate the effectiveness of supplementation with a combination of glutamine, β-hydroxy-β-methylbutyrate (HMB) and arginine in patients undergoing to the heart surgery.

Methods

The experiment was performed in 1 month (30 days) before cardiac surgery. patients were asked to take 2 sachets of Heallagen® (a combination of 7 g l-arginine, 7 g l-glutamine, and 1.5 g daily HMB) or placebo with identical appearance and taste (maltodextrin) with 120 cc of water. Clinical and biochemical factors were evaluated in the baseline and end of the study.

Results

Totally, 60 preoperative patients (30 interventions and 30 placeboes) with a mean age of 53.13 ± 14.35 years participated in the study. Subjects in Heallagen® group had a lower serum levels of interleukin-6 (P = 0.023), erythrocyte sedimentation rate (P < 0.01), high sensitivity C-reactive protein (P < 0.01), and lymphocyte number (P = 0.007) compared to the placebo, at end of the study.

Conclusion

In the patients undergoing heart surgery, Heallagen® significantly improved some of the inflammatory factors and hematological parameters. These results need to be confirmed in a larger trial.

Trial registration: The protocol of the study was registered in the IRCT.ir with registration no. IRCT20120913010826N31 at 13/10/2020.

Risk factors for anastomotic leakage after surgical resections for esophageal cancer

PURPOSE

Surgery for esophageal cancer is a challenging procedure that is associated with a high rate of complications such as sepsis, nutritional disorders, and anastomotic leakage (AL). The rate of complications following esophageal surgery rises exponentially in the presence of risk factors. This study aims to identify the risk factors for AL following esophageal cancer surgery.

METHODS

In this retrospective study, we recorded comorbidities, tumor specific factors, nutritional status, and surgical complications of all patients who underwent surgical resections for esophageal cancers between January 2015 and December 2019. The occurrence of potential risk factors for AL was compared between groups with and without AL. We analyzed the categorical variables by Chi-square or Fisher's exact test, and the continuous variable by the Mann-Whitney U test and multivariable regression analyses.

RESULTS

From 92 patients, AL was found in 12 (13%) patients. All cases with AL had hypoproteinemia; a protein level < 5 g/dl was an independent risk factor for AL (p value 0.009). The logistic regression analysis showed a positive correlation between hypoproteinemia and AL (coefficient 1.83, significance 0.01). Additionally, squamous cell carcinoma (SCC) of the esophagus had a positive correlation with AL (coefficient 1.89, significance 0.01).

CONCLUSION

In our study, hypoproteinemia and SCC were significant risk factors for AL after esophageal cancer surgery. Optimization of preoperative hypoproteinemia using a standardized nutritional protocol is recommended. More research is essential to determine the correlation of SCC with AL.

Use of adductor pollicis muscle thickness in hospitalized or ambulatory patients: a systematic review

Objective:

to analyze the use of the Adductor Pollicis Muscle Thickness (APMT) as an anthropometric parameter and prognostic indicator in hospitalized or ambulatory patients.

Method:

systematic review carried out the Web of Science, SCOPUS and Lilacs databases.

Results:

Twenty-three studies were performed on critical, surgical, oncological, nephropathic and hepatopathic patients, collecting data on bibliographic reference, study site, objectives, number of patients, age group, methodology, main results and conclusion. APMT proved to be a good anthropometric parameter for evaluation of nutritional status in critical patients without edema, and surgical, oncological and nephropathic patients, but presented poor performance for diagnosis of malnutrition in hepatopathic patients. It was a good prognostic indicator for mortality in critical, nephropathic and oncological patients, and also a good predictor of hospitalization in nephropathic patients. There was an association with neurological complications in Hepatic Encephalopathy (HE) in the case of hepatophatic patients, but it was not a predictor of postoperative complications in surgical patients.

Conclusion:

APTM was considered a good anthropometric parameter in most clinical conditions, except in patients with liver disease and a good prognostic indicator for mortality in critical, oncological and nephropathic patients, and a predictor of neurological complications in HE. Further prognostic investigation, standardization of cutoff points and evaluation of sensitivity and specificity are required.