A randomised controlled study of preoperative oral carbohydrate loading versus fasting in patients undergoing colorectal surgery

Preoperative carbohydrate loading reduces perioperative insulin resistance and hastens functional recovery of remnant liver after living donor hepatectomy: An open-label randomized controlled trial

OBJECTIVE

This study aimed to assess the effect of preoperative carbohydrate (CHO) loading on perioperative insulin resistance (PIR) and outcomes after live donor hepatectomy. The primary objective of the trial was to compare PIR on postoperative day (POD) 2 between preoperative oral carbohydrate (CHO) loading and overnight fasting groups. The secondary objectives were to compare the functional recovery of the remnant liver, incidence of postoperative nausea and vomiting (PONV) up to 72 h after surgery, inflammatory markers, and length of hospital stay (LOS) between both groups.

BACKGROUND

Preoperative fasting increases perioperative insulin resistance (PIR). Insulin resistance has deleterious effects on liver regeneration following partial hepatectomy.

METHODS

Single-center, open-label, randomized controlled trial. After exclusion, 70 donors were recruited (35 from each group). Donors in the intervention arm received 50 g of maltodextrin at 10 PM the night before surgery and 25 g of maltodextrin 2 h before anesthesia induction on the day of surgery, whereas those in the control arm followed a minimum of 6 h of overnight fasting. The PIR was assessed using the Homeostatic Model for Assessment of Insulin Resistance (HOMA-IR).

RESULTS

Baseline and intraoperative parameters were comparable between the two groups. CHO loading provided better postoperative glycemic control (p < 0.01) and reduced PIR by > 50% (p < 0.01) compared to preoperative fasting. Although postoperative complications, inflammatory markers, and LOS were comparable between the groups, there was a significant attenuation of postoperative nausea (p = 0.01) and vomiting (p = 0.013) with early soft diet tolerance (p = 0.002) in the CHO group. In addition, preoperative carbohydrate loading accelerated functional recovery of the remnant liver, with earlier normalization of serum bilirubin levels (p = 0.002).

CONCLUSION

CHO supplementation is safe and effective in shortening preoperative fasting during donor hepatectomy without significant postoperative risks. It can be considered a standard of care in donor surgery ERAS (Enhanced Recovery After Surgery) protocols for live donor liver transplantations.

REGISTRATION NUMBER

NCT05293444 ( www.

CLINICALTRIALS

gov ).

Different regimens of preoperative carbohydrate loading on insulin resistance: A network meta-analysis

BACKGROUND & AIMS

The effectiveness of preoperative carbohydrate loading(PCL) on postoperative insulin resistance(IR) is controversial. In addition, the effect of different doses of carbohydrates on postoperative IR is also controversial. Therefore, this study aimed to investigate the efficiency of PCL on postoperative IR and the optimal regimen for the effect on postoperative IR.

METHODS

A systematic search of clinical randomized controlled trials was performed to extract basic information about the included studies, specific regimens of PCL, and preoperative and postoperative IR. Network meta-analysis was performed using frequentist random effects. A total of 7 regimens were identified by categorizing them based on frequency, timing, control groups, and conducting subgroup analysis according to surgical procedure. High (>45 g) and low (≤45 g) doses were divided according to the standard definition of PCL. Dose analysis was performed on studies in the subgroups that met the optimal frequency and timing regimen. Reporting of results based on weighted mean differences(WMD), 95 % confidence intervals(95%CrI), and the surface under the cumulative ranking(SUCRA).

RESULTS

Carbohydrate loading given only 3 h before surgery is more strongly associated with insulin resistance than fasting(WMD: -4.04,95%CrI: -5.67 to -2.40) and placebo(WMD: -4.00,95%CrI: -5.98 to -2.02). Single-dose preoperative 3 h regimen has the highest probability of being the optimal regimen(SUCRA = 90.9 %). This is also true in open(SUCRA = 93.7 %) and laparoscopic surgery(SUCRA = 99.9 %). Analyzed using a fixed-effects model in open and laparoscopic surgery. In open surgery, high-dose and low-dose carbohydrates are associated with postoperative IR compared with fasting(high-dose: WMD: -1.75,95%CrI: -1.95 to -1.54; low-dose: WMD: -2.46,95%CrI: -3.70 to -1.23) and placebo(high-dose: WMD: -5.37,95%CrI: -6.99 to -3.76; low-dose: WMD: -6.09,95%CrI: -7.29 to -4.90). Low-dose carbohydrates(SUCRA = 95.3 %) have the highest probability of being the best option. In laparoscopic surgery, high-dose and low-dose carbohydrates are also associated with postoperative IR compared with fasting(high-dose (WMD: -5.70,95 %, CrI: -7.63 to -3.77); low-dose (WMD: -3.69,95%CrI: -4.11 to -3.27))and placebo(high-dose (WMD: -5.73,95%CrI: -7.72 to -3.74); low-dose (WMD: -3.72,95%CrI: -4.14 to -3.30)). SUCRA for high-dose carbohydrates is 99.2 %.

CONCLUSION

Preoperative implementation of carbohydrate loading is more beneficial in alleviating postoperative insulin resistance than fasting and placebo. Conducting PCL on the morning of surgery is more effective in relieving postoperative IR. For both open and laparoscopic surgeries, administering carbohydrate loading 3 h before the surgery may represent the optimal regimen. Further studies are needed to investigate the effect of different doses on postoperative IR.

Effect of preoperative oral carbohydrate loading versus oral rehydration solution on enhanced recovery after surgery in elective open gynecological surgeries: A prospective interventional study

Background and Aims

Enhanced recovery after surgery recommends preoperative consumption of carbohydrate within 2 hours before elective surgery to reduce perioperative discomfort and improve patient outcome.

Material and Methods

This prospective interventional study included 105 adult patients, undergoing elective open gynecological surgery under neuraxial anesthesia. Groups I, II, and III were administered commercially available preoperative carbohydrate drink, oral rehydration solution (ORS), and mineral water, respectively, at night and 3 hours before surgery. The primary objective was to assess the difference in hunger, thirst, anxiety, nausea, and fatigue using visual analog scale, postoperative blood sugar levels, and quality of recovery (QoR) 40 questionnaire among groups.

Results

Severe hunger (22.9%), thirst (31.4%), and anxiety (34.3%) were experienced more in group III, while in group I and II, no patient had severe discomfort. The mean blood sugar levels in group III (111.3 ± 12.3, 129.4 ± 7.3) were higher compared to group I and II at both 1 hour and 24 hours after initiation of anesthesia. The mean QoR score was the highest in group I compared to group II and group III (P < 0.001). The majority of the patients in group I (77.1%) had an early return of gastrointestinal function and a shorter length of hospital stay.

Conclusions

The overall effectiveness of commercially available preoperative carbohydrate solution was more compared to ORS and mineral water. The consumption of ORS drink resulted in less thirst and satisfactory outcomes due to its higher electrolyte content, making it a suitable option for low resource setting.

Breaking surgical barriers: ERAS in action in Romania

Implementing Enhanced Recovery After Surgery (ERAS) protocols presents challenges for healthcare systems, particularly for patients undergoing complex surgeries. Though ERAS effectively reduces postoperative complications and hospital stays, its implementation varies. Our hospital adopted the ERAS protocol in 2020. This study details specific ERAS components implemented in our clinic, emphasizing surgical and anesthetic strategies. We describe preoperative, intraoperative, and postoperative phases and analyze the evidence for each component's integration. Additionally, we highlight the specific challenges faced in Romania, such as funding limitations, resource constraints, and reluctance among healthcare professionals. We conducted a prospective study of 147 patients with colorectal cancer treated from 2020 to 2023, detailing the perioperative care phases and supporting evidence for protocol components. The methodology was refined to account for potential confounding factors by ensuring consistency in patient selection criteria and perioperative management. Despite ERAS's advantages, patients and staff resisted its implementation. In Romanian hospitals, colorectal surgery uses ERAS only in limited cases due to inadequate funding, insufficient medical personnel, logistical challenges, and a lack of awareness or skepticism among healthcare professionals and patients. The study presents specific clinical outcomes, including length of hospital stay (LOS), postoperative complications, and readmission rates among ERAS patients. We recommend expanding medical networks and utilizing advanced technologies like telemedicine services and home-based care to improve ERAS protocol adherence. Furthermore, educational programs are essential to increase awareness and compliance with ERAS principles among patients and healthcare providers.

Nutritional Assessment and Management of Patients with Brain Neoplasms Undergoing Neurosurgery: A Systematic Review

BACKGROUND/AIM

Nutritional management in neurosurgical patients with brain neoplasms is critical, as optimal nutritional status is potentially associated with improved clinical outcomes. This systematic review aimed to analyze the impact of pre- and postoperative nutritional assessment and effect of prepost interventions on the clinical outcomes.

METHODS

A systematic review was conducted using the PubMed, Cochrane Library, Embase, and CINAHL databases, complemented by a search of grey literature. Study quality was assessed using the Joanna Briggs Institute framework, and the certainty of evidence was graded according to the Oxford Centre for Evidence-Based Medicine levels.

RESULTS

Fourteen studies, encompassing a total of 11,224 adult patients with brain neoplasms, were included. Many of these studies were retrospective, had small sample sizes, and examined diverse nutritional protocols. Preoperative nutritional status assessment, including clinical parameters such as albumin (p < 0.001), Controlling Nutritional Status score (p = 0.001), and Prognostic Nutritional Index (p < 0.010), combined with postoperative oral nutritional supplements (p < 0.001), was significantly associated with postoperative clinical outcomes. Additionally, personalized nutritional counseling contributed to a reduction in complications and facilitated more effective functional recovery.

CONCLUSIONS

Nutritional care is vital in managing neurosurgical patients with brain neoplasms, reducing complications and enhancing postoperative recovery and overall clinical outcomes. A multidisciplinary team is key to optimal outcomes. Future research should aim to standardize protocols for broader applicability.

The Power of Prehabilitation, the Reporting of Power Calculations in Randomized Clinical Trials Evaluating Prehabilitation in Cancer Surgery: A Systematic Review and Meta-research Study

OBJECTIVE

To assess sample size calculation reporting in randomized controlled trials (RCTs) investigating prehabilitation interventions in oncological surgery patients.

DATA SOURCES

A systematic literature search was performed in multiple medical databases from inception to April 2023, including MEDLINE, Embase, The Cochrane Library, CINHAL, AMED, and PsychINFO.

STUDY SELECTION

The inclusion criteria used were RCTs evaluating effectiveness of exercise, nutrition, and/or psychological interventions on postoperative outcomes of adult patients undergoing oncological surgery.

DATA EXTRACTION

Two authors (DS and SV) extracted information on the sample size calculation parameters, including type I error (α), power (1-β), mean (or mean difference between randomization arms), and variance (eg, standard deviation) for continuous outcomes, and event rates or event rate difference between randomization arms for dichotomous outcomes. When possible, we recalculated the sample size required using the collected data, given a 10% margin of error.

DATA SYNTHESIS

Of the 59 included publications (58 RCTs), 26 (44%) reported sufficient information to complete sample size recalculation. Of those that provided sufficient information allowing us to recalculate the required sample size, 11 (42%) were within a 10% margin of the reported sample size, whereas 9 (35%) were >10% higher than reported sample size and 6 (23%) were >10% lower than reported sample size.

CONCLUSIONS

Over half of the published RCTs in this field exhibit poor sample size calculation reporting. Most RCTs that report sufficient sample size information were underpowered. More stringent reporting requirements are necessary.

Nutritional Prehabilitation: Trends in Supplementation Based on Sustainable Dairy Protein Sources

PURPOSE OF REVIEW

Prehabilitation is an emerging clinical practice that aims to improve the surgical recovery and quality of life of patients undergoing intensive treatments. This review intends to describe the state of the art in prehabilitation, highlighting the role of nutritional strategies and the current trends in supplements.

RECENT FINDINGS

Up-to-date studies have shown the importance of optimizing the nutritional status of patients to cope with the physical and metabolic demands of surgery and intensive treatments. In the context of nutritional prehabilitation, oral nutritional supplementation has emerged as a preferred strategy. The effectiveness of prehabilitation has been demonstrated in various clinical contexts. However, the lack of standardized protocols makes it hard to compare the outcomes. Despite the variability in this type of nutritional intervention found in reports, it has been shown that the most common oral nutritional supplements (ONS) contain dairy proteins. The use of whey proteins represents a promising approach from both a nutritional and a sustainability perspective.

The 2024 Korean Enhanced Recovery After Surgery (ERAS) guidelines for colorectal cancer: a secondary publication

The Korean Enhanced Recovery After Surgery (ERAS) Committee within the Korean Society of Surgical Metabolism and Nutrition was established to develop ERAS guidelines tailored to the Korean context. This guideline focuses on creating the most current evidence-based practice guidelines for ERAS purposes, based on systematic reviews. All key questions targeted randomized controlled trials exclusively, and if fewer than 2 were available, studies employing propensity score matching were also included. Recommendations for each key question were marked with strength of recommendation and level of evidence following internal and external review processes by the committee.

Optimizing Postoperative Clinical Outcomes in Spinal Surgery Through Preoperative Oral Carbohydrate Loading: A Case-control Study

PURPOSE

Preoperative oral carbohydrate loading is a component of enhanced recovery after surgery protocols. The aim of this study is to investigate the effects of preoperative oral carbohydrate loading on postoperative clinical outcomes in spinal surgery patients.

DESIGN

This is a prospective case-control study.

METHODS

This study was conducted with patients who underwent spinal surgery from October 1, 2020 to October 1, 2021 in a neurosurgery clinic of an education and research hospital. The intervention group (n = 46) ingested 800 mL oral carbohydrate drinks at least 8 hours before surgery. The postoperative clinical outcomes were nausea, vomiting, antiemetic and analgesic drug medication, inflammation, and bleeding. The first flatus and defecation time, oral intake time, mobilization time, and length of stay in hospital were assessed postoperatively. Adverse events were monitored up to 24 hours postoperatively. The control group (n = 46) underwent routine fasting protocols.

FINDINGS

Lower rates of vomiting and bleeding during and after surgery and earlier defecation time and first mobilization time were determined in the intervention group, and the difference compared with the control group was statistically significant.

CONCLUSIONS

Preoperative oral carbohydrate loading is a nonpharmacological intervention that has a positive effect on postoperative clinical outcomes in patients who underwent spinal surgery and should be included in the enhanced recovery after surgery protocol.

The Effect of Preoperative Carbohydrate-containing Fluid Consumption on Maternal Oxidative Stress Markers During Elective Cesarean Delivery

PURPOSE

The purpose of this study was to evaluate the effect of carbohydrate loading prior to the cesarean surgery under spinal anesthesia on thiols and ischemia-modified albumin (IMA) levels.

DESIGN

Prospective, randomized placebo-controlled study.

METHODS

Seventy-nine pregnant women planned for cesarean sections under spinal anesthesia at Karaman Training and Research Hospital were randomized into a control group (group C) (n = 42), and an oral carbohydrate preloading group (group OCH) (n = 37). OCH loading requires consuming 400 mL the night before surgery and 200 mL up to 2 hours before anesthesia. Group OCH consumed an oral carbohydrate-rich beverage (Nutricia-Fantomalt), and group C consumed an equal volume of water. This study investigated thiol-disulfide homeostasis after preoperative carbohydrate consumption. Preoperative gastric fluid, volume, antral cross-sectional area, hypotension following the birth, and fetal blood gas parameters were compared across groups.

FINDINGS

Thiols and IMA levels did not differ across groups before and after surgery (P > .05). Gastric ultrasonography showed similar antral cross-sectional area and stomach volume between groups (P = .172, P = .128, respectively). When surgery caused hypotension, group OCH received more ephedrine for surgery-induced hypotension, although this difference is not statistically significant (P = .704). A clustered error bar (95% confidence interval) plot with an interpolation line was used for a time-based comparison of mean differences in heart rate and mean arterial pressure between the groups.

CONCLUSIONS

This study supports that mothers' thiols and IMA levels were unaffected by preoperative OCH loading before cesarean surgery. We did not examine thiol and its derivatives in umbilical cord blood; hence, we can not comment on thiol/disulfide homeostasis levels in neonates.

Study protocol of the PRINCESS trial-PReoperative INtermittent fasting versus CarbohydratE loading to reduce inSulin resiStance versus standard of care in orthopaedic patients: a randomised controlled trial

INTRODUCTION

Surgical trauma induces a metabolic stress response, resulting in reduced insulin sensitivity and hyperglycaemia. Postoperative insulin resistance (IR) is associated with postoperative complications, and extended preoperative fasting may further aggravate the postoperative metabolic stress response. Nutritional strategies, such as carbohydrate loading (CHL), have been successfully used to attenuate postoperative IR. Recent evidence suggests that time-restricted feeding (TRF), a form of intermittent fasting, improves IR in the general population, even after a short period of TRF. We hypothesise that TRF, as well as CHL, improve postoperative IR.

METHODS AND ANALYSIS

This open-label, single-centre, randomised controlled trial will compare the effect of short-term preoperative TRF, CHL and standard preoperative fasting on perioperative IR. A total of 75 orthopaedic patients presenting for elective intermediate to major surgery at a Dutch academic hospital will be randomly assigned to a control group (standard preoperative fasting), a TRF group or a CHL group. The primary outcome is postoperative IR, based on the updated homeostasis model assessment of IR, on the first day after surgery. Statistical analyses are performed using Student's t-tests or Mann-Whitney U tests.

ETHICS AND DISSEMINATION

The local medical ethics committee of the Amsterdam UMC, the Netherlands, approved the trial protocol in January 2023 (NL81556.018.22). No publication restrictions apply, and the results of the study will be disseminated through a peer-reviewed journal.

TRIAL REGISTRATION NUMBER

NCT05760339.

Effectiveness of Prehabilitation Modalities on Postoperative Outcomes Following Colorectal Cancer Surgery: A Systematic Review of Randomised Controlled Trials

BACKGROUND

Postoperative morbidity in patients undergoing curative colorectal cancer surgery is high. Prehabilitation has been suggested to reduce postoperative morbidity, however its effectiveness is still lacking.

OBJECTIVE

The aim of this study was to investigate the effectiveness of prehabilitation in reducing postoperative morbidity and length of hospital stay in patients undergoing colorectal cancer surgery.

METHODS

A comprehensive electronic search was conducted in the CINAHL, Cochrane Library, Medline, PsychINFO, AMED, and Embase databases from inception to April 2023. Randomised controlled trials testing the effectiveness of prehabilitation, including exercise, nutrition, and/or psychological interventions, compared with usual care in patients undergoing colorectal cancer surgery were included. Two independent review authors extracted relevant information and assessed the risk of bias. Random-effect meta-analyses were used to pool outcomes, and the quality of evidence was assessed using Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) guidelines.

RESULTS

A total of 23 trials were identified (N = 2475 patients), including multimodal (3 trials), exercise (3 trials), nutrition (16 trials), and psychological (1 trial) prehabilitation. There was moderate-quality evidence that preoperative nutrition significantly reduced postoperative infectious complications (relative risk 0.65, 95% confidence interval [CI] 0.45-0.94) and low-quality evidence on reducing the length of hospital stay (mean difference 0.87, 95% CI 0.17-1.58) compared with control. A single trial demonstrated an effect of multimodal prehabilitation on postoperative complication.

CONCLUSION

Nutrition prehabilitation was effective in reducing infectious complications and length of hospital stay. Whether other multimodal, exercise, and psychological prehabilitation modalities improve postoperative outcomes after colorectal cancer surgery is uncertain as the current quality of evidence is low.

PROTOCOL REGISTRATION

Open Science Framework ( https://doi.org/10.17605/OSF.IO/VW72N ).

Effect of preoperative oral carbohydrate on the postoperative recovery quality of patients undergoing daytime oral surgery: a randomized controlled trial

BACKGROUND

Preoperative oral carbohydrate intake can improve the postoperative recovery of fasting patients in many kinds of surgeries; however, the effect of carbohydrates on patients undergoing daytime oral surgery is still unclear. This study was designed to evaluate the effect of preoperative oral carbohydrate intake on the quality of recovery of patients undergoing daytime oral surgery using the quality of recovery-15 (QoR-15) questionnaire.

METHODS

Ninety-two patients scheduled for daytime oral surgery were randomly allocated to the midnight fasting group (F group, n = 45) or the carbohydrate-Outfast loading group (O group, n = 47). Participants in the F group fasted from midnight the day before surgery. Patients in the O group also fasted but received the Outfast drink (4 ml/kg) 2-3 h before the induction of anesthesia. QoR-15 questionnaire, patient well-being, and satisfaction were assessed before anesthesia induction and 24 h after surgery. Perioperative blood glucose, postoperative exhaust time, and adverse events were also recorded.

RESULTS

The QoR-15 scores were significantly higher in the O group than in the F group preoperatively and postoperatively. Seven parameters representing patient well-being evaluated on a numeric rating scale (NRS, 0-10) were lower in the O group than in the F group postoperatively, except for the hunger and sleep quality scores. Patient satisfaction scores on a 5-point scale were higher in the O group than in the F group preoperatively and postoperatively. Meanwhile, the postoperative exhaust time was significantly shorter in the O group compared to the F group, while there were no significant differences in blood glucose concentrations between two groups.

CONCLUSIONS

Preoperative oral carbohydrate intake could improve postoperative recovery quality, well-being, and satisfaction of patients undergoing daytime oral surgery 24 h after surgery, and may serve as a treatment option for patients undergoing daytime oral surgery.

TRIAL REGISTRATION

This trial was registered in the Chinese Clinical Trial Registry (ChiCTR2100053753) on 28/11/2021.

The impact of preoperative fasting time on patients undergoing partial nephrectomy and analysis of risk factors for postoperative hemorrhage

Objective

This study investigates the impact of preoperative fasting time on patients undergoing partial nephrectomy and analyzes the risk factors for postoperative hemorrhage to provide clinical reference for physicians treating patients undergoing partial nephrectomy.

Methods

A retrospective analysis was conducted on 74 patients who underwent partial nephrectomy for renal tumors between January 2022 and March 2024. Baseline and perioperative data were collected. The effects of long-term and short-term preoperative fasting on patients undergoing partial nephrectomy were compared. Additionally, univariate and multivariate logistic regression analyses were performed to identify risk factors for hemorrhagic complications following partial nephrectomy.

Results

Among the patients in this study, 26 (35.14%) underwent short-term preoperative fasting, while 48 (64.86%) underwent long-term preoperative fasting. The hemoglobin difference in the short-term fasting group was 21.08 ± 12.44 ml, compared to 13.65 ± 11.69 ml in the long-term fasting group, showing a statistically significant difference (p = 0.020). Differences in serum calcium (p = 0.003), serum magnesium (p = 0.031), and serum phosphorus (p = 0.001) between the short-term and long-term fasting groups were also statistically significant. Univariate and multivariate regression analyses identified the type of surgery (p = 0.050) and preoperative fasting time (p < 0.001) as independent risk factors for postoperative hemorrhage following partial nephrectomy.

Conclusion

Patients undergoing partial nephrectomy with short-term preoperative fasting experience a more significant decrease in hemoglobin compared to those with long-term fasting. The type of surgery and preoperative fasting time are independent risk factors for postoperative hemorrhage in patients undergoing partial nephrectomy.

Driving Forces for Outpatient Total Hip and Knee Arthroplasty with Enhanced Recovery After Surgery Protocols: A Narrative Review

PURPOSE OF REVIEW

To explore the recent developments and trends in the anesthetic and surgical practices for total hip and total knee arthroplasty and discuss the implications for further outpatient total joint arthroplasty procedures.

RECENT FINDINGS

Between 2012 and 2017 there was an 18.9% increase in the annual primary total joint arthroplasty volume. Payments to physicians falling by 7.5% (14.9% when adjusted for inflations), whereas hospital reimbursements and charges increased by 0.3% and 18.6%, respectively. Total knee arthroplasty and total hip arthroplasty surgeries were removed from the Medicare Inpatient Only in January 2018 and January 2020, respectively leading to same-day TKA surgeries increases from 1.2% in January 2016 to 62.4% by December 2020 Same-day volumes for THA surgery increased from 2% in January 2016 to 54.5% by December 2020. Enhanced Recovery After Surgery (ERAS) protocols have revolutionized modern anesthesia and surgery practices. Centers for Medicare Services officially removed total joint arthroplasty from the inpatient only services list, opening a new door for improved cost savings to patients and the healthcare system alike. In the post-COVID healthcare system numerous factors have pushed increasing numbers of total joint arthroplasties into the outpatient, ambulatory surgery center setting. Improved anesthesia and surgical practices in the preoperative, intraoperative, and postoperative settings have revolutionized pain control, blood loss, and ambulatory status, rendering costly hospital stays obsolete in many cases. As the population ages and more total joint procedures are performed, the door is opening for more orthopedic procedures to exit the inpatient only setting in favor of the ambulatory setting.

Effect of preoperative oral carbohydrate loading on postoperative insulin resistance, patient-perceived well-being, and surgical outcomes in elective colorectal surgery: a randomized controlled trial

BACKGROUND

Insulin resistance (IR) is one of the independent determinants influencing the length of hospital stay (LOHS) and postoperative complications in colorectal procedures. Preoperative oral carbohydrate loading (OCL) has emerged as a prospective countermeasure for IR. This study aimed to investigate the effects of preoperative carbohydrate loading on postoperative IR, inflammatory parameters, and clinical outcomes in patients undergoing elective colorectal surgery.

METHODS

This was an open-label, parallel arm, superiority randomized controlled trial conducted over 2 years. Participants were assigned to conventional fasting and oral OCL groups. IR, insulin sensitivity, Glasgow Prognostic Score (GPS), and interleukin 6 levels were analyzed on the day of surgery and on the first postoperative day (POD-1) and third POD (POD-3). Clinical parameters, such as thirst, hunger, dry mouth, anxiety, weakness, pain, nausea, and vomiting, were compared in the perioperative period. In addition, surgical clinical outcomes, such as intestinal recovery, time to independent ambulation, postoperative morbidity, and LOHS, were studied.

RESULTS

A total of 72 participants were included, with 36 in each group. In the OCL group, there was a statistically significant decrease in postoperative IR on the day of surgery, POD-1, and POD-3 (P = .0336). Similarly, inflammatory parameters and the GPS were found to be significantly lower in the OCL group (P < .001). Clinical parameters, such as thirst, hunger, and dry mouth, were significantly lower in the intervention group (P =.00), with a shortened LOHS.

CONCLUSION

This study demonstrated that preoperative carbohydrate loading is associated with reduced IR and inflammatory markers, shortened hospital stays, and improved overall clinical outcomes in elective colorectal surgery.

Predictive factors for postoperative ileus after elective right hemicolectomy performed on over 80% Enhanced Recovery After Surgery-adherent patients: a retrospective cohort study

Purpose

Laparoscopic right hemicolectomy is the standard surgical approach for treatment of right-sided colonic neoplasms. Although performed within a strict Enhanced Recovery After Surgery (ERAS) program, patients still develop postoperative ileus. The aim of this study was to describe the factors responsible for postoperative ileus after right hemicolectomy in a patient population with over 80% ERAS adherence.

Methods

In this retrospective study, we analyzed 499 consecutive patients undergoing elective right-sided colectomy for neoplastic disease in a single high-volume center. All patients followed an updated ERAS program.

Results

The overall median ERAS adherence was 80%. Patients with ≥ 80% adherence (n = 271) were included in further analysis. Their median ERAS adherence was 88.9% (interquartile range, 80-90; range, 80-100). Twenty-four of 271 patients (8.9%) developed postoperative ileus. A univariate regression analysis revealed carcinoma situated in the transverse colon, duration of operation over 200 minutes, and opiate consumption over 10 mg on the second postoperative day (POD) to be associated with a significantly higher risk of postoperative ileus. Multivariate regression analysis revealed that duration of surgery over 200 minutes (odds ratio [OR], 2.4; 95% confidence interval [CI], 1.0-5.8; P = 0.045) and opiate consumption over 10 mg on POD 2 (OR, 4.8; 95% CI, 1.6-14.3; P = 0.005) independently predict a higher risk for postoperative ileus. The median length of hospital stay was significantly longer in patients with postoperative ileus (8 days vs. 3 days, P < 0.001). None of the 271 patients died during a 30-day follow-up.

Conclusion

Long duration of surgery, even minor postoperative opiate use, predict a higher risk for postoperative ileus in strictly ERAS-adherent patients undergoing laparoscopic right hemicolectomy.

Trends in preoperative carbohydrate load practice: A systematic review

BACKGROUND

The preoperative carbohydrate load (PCL) is intended to improve surgical outcomes by reducing the catabolic state induced by overnight fasting. However, there is disagreement on the optimal PCL prescription, leaving local institutions without a standardized PCL recommendation. Results from studies that do not prescribe PCL in identical ways cannot be pooled to draw larger conclusions on outcomes affected by the PCL. The aim of this systematic review is to catalog prescribed PCL characteristics, including timing of ingestion, percentage of carbohydrate contribution, and volume, to ultimately standardize PCL practice.

METHODS

A comprehensive search was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Randomized controlled trials were included if they studied at least one group of patients who were prescribed a PCL and the PCL was described with respect to timing of ingestion, carbohydrate contribution, and total volume.

RESULTS

A total of 67 studies with 6551 patients were included in this systematic review. Of the studies, 49.3% were prescribed PCL on the night before surgery and morning of surgery, whereas 47.8% were prescribed PCL on the morning of surgery alone. The mean prescribed carbohydrate concentration was 13.5% (±3.4). The total volume prescribed was 648.2 ml (±377).

CONCLUSION

Variation in PCL practices prevent meaningful data pooling and outcome analysis, highlighting the need for standardized PCL prescription. Efforts dedicated to the establishment of a gold standard PCL prescription are necessary so that studies can be pooled and analyzed with respect to meaningful clinical end points that impact surgical outcomes and patient satisfaction.

Preoperative fasting and the risk of pulmonary aspiration-a narrative review of historical concepts, physiological effects, and new perspectives

In the early days of anaesthesia, the fasting period for liquids was kept short. By the mid-20th century 'nil by mouth after midnight' had become routine as the principles of the management of 'full stomach' emergencies were extended to include elective healthy patients. Back then, no distinction was made between the withholding of liquids and solids. Towards the end of the last century, recommendations of professional anaesthesiology bodies began to reduce the fasting time of clear liquids to 2 h. This reduction in fasting time was based on the understanding that gastric emptying of clear liquids is rapid, exponential, and proportional to the current filling state of the stomach. Furthermore, there was no evidence of a link between drinking clear liquids and the risk of aspiration. Indeed, most instances of aspiration are caused by failure to identify aspiration risk factors and adjust the anaesthetic technique accordingly. In contrast, long periods of liquid withdrawal cause discomfort and may also lead to serious postoperative complications. Despite this, more than two decades after the introduction of the 2 h limit, patients still fast for a median of up to 12 h before anaesthesia, mainly because of organisational issues. Therefore, some hospitals have decided to allow patients to drink clear liquids within 2 h of induction of anaesthesia. Well-designed clinical trials should investigate whether these concepts are safe in patients scheduled for anaesthesia or procedural sedation, focusing on both aspiration risk and complications of prolonged fasting.

Effects of cold spray on thirst, frequency of oral care, and pain of general surgery intensive care unit patients

This study aims to investigate the effects of intraoral cold water spray on thirst, frequency of oral care and postoperative period pain at surgical incision site in patients having abdominal surgery. The study was carried out as a randomized controlled trial, registered under Clinical Trial Number: NCT05940818. The study involved 110 participants, divided equally into two groups (n = 55): the experimental group and the control group. Data were collected using patient information form, NRS, Intensive Care Oral Care Frequency Assessment Scale (ICOCFAS) and Visual Analog Scale (VAS). The severity of thirst at 1st, 8th, 16th h of post-operative period (p < 0.01) and the frequency of oral care application at 16th h were statistically significantly decreased in the experimental group when compared to the control group (p < 0.01).There wasn't statistically significant difference between the patients in the experimental and control groups in terms of pain at surgical incision site (p > 0.05). The patient's thirst and need for frequent oral care in the postoperative period were reduced by the application of a cold water spray. In patients undergoing abdominal surgery, the use of cold water spray application may be recommended to reduce thirst and the need for frequency of oral care application.

Outcome Heterogeneity in Prehabilitation Trials-Are We Comparing Apples and Oranges?

INTRODUCTION

Over the last decade, the number of prehabilitation randomised controlled trials (RCTs) has increased significantly. Therefore, this review aimed to describe the outcomes reported in prehabilitation RCTs in patients undergoing cancer surgery.

METHODS

A search was conducted in Embase, Allied and Complementary Medicine Database, The Cochrane Library, PsycINFO, MEDLINE, and Cumulated Index to Nursing and Allied Health Literature from inception to July 2021. We included RCTs evaluating the effectiveness of preoperative exercise, nutrition, and psychological interventions on postoperative complications and length of hospital stay in adult oncology patients who underwent thoracic and gastrointestinal cancer surgery. The verbatim outcomes reported in each article were extracted, and each outcome was assessed to determine whether it was defined and measured using a validated tool. Verbatim outcomes were grouped into standardized outcomes and categorized into domains. The quality of outcome reporting in each identified article was assessed using the Harman tool (score range 0-6, where 0 indicated the poorest quality).

RESULTS

A total of 74 RCTs were included, from which 601 verbatim outcomes were extracted. Only 110 (18.3%) of the verbatim outcomes were defined and 270 (44.9%) were labeled as either "primary" or "secondary" outcomes. Verbatim outcomes were categorized into 119 standardized outcomes and assigned into one of five domains (patient-reported outcomes, surgical outcomes, physical/functional outcomes, disease activity, and intervention delivery). Surgical outcomes were the most common outcomes reported (n = 71 trials, 95.9%). The overall quality of the reported outcomes was poor across trials (median score: 2.0 [IQR = 0.00-3.75]).

CONCLUSIONS

Prehabilitation RCTs display considerable heterogeneity in outcome reporting, and low outcome reporting quality. The development of standardized core outcome sets may help improve article quality and enhance the clinical utility of prehabilitation following cancer surgery.

Postoperative ileus after digestive surgery: Network meta-analysis of pharmacological intervention

AIMS

Several medicinal treatments for avoiding postoperative ileus (POI) after abdominal surgery have been evaluated in randomized controlled trials (RCTs). This network meta-analysis aimed to explore the relative effectiveness of these different treatments on ileus outcome measures.

METHODS

A systematic literature review was performed to identify RCTs comparing treatments for POI following abdominal surgery. A Bayesian network meta-analysis was performed. Direct and indirect comparisons of all regimens were simultaneously compared using random-effects network meta-analysis.

RESULTS

A total of 38 RCTs were included in this network meta-analysis reporting on 6371 patients. Our network meta-analysis shows that prokinetics significantly reduce the duration of first gas (mean difference [MD] = 16 h; credible interval -30, -3.1; surface under the cumulative ranking curve [SUCRA] 0.418), duration of first bowel movements (MD = 25 h; credible interval -39, -11; SUCRA 0.25) and duration of postoperative hospitalization (MD -1.9 h; credible interval -3.8, -0.040; SUCRA 0.34). Opioid antagonists are the only treatment that significantly improve the duration of food recovery (MD -19 h; credible interval -26, -14; SUCRA 0.163).

CONCLUSION

Based on our meta-analysis, the 2 most consistent pharmacological treatments able to effectively reduce POI after abdominal surgery are prokinetics and opioid antagonists. The absence of clear superiority of 1 treatment over another highlights the limits of the pharmacological principles available.

Enhanced recovery after surgery, current, and future considerations in head and neck cancer

Objectives

Review of the current and relevant literature to develop a list of evidence-based recommendations that can be implemented in head and neck surgical practices. To provide rationale for the multiple aspects of comprehensive care for head and neck surgical patients. To improve postsurgical outcomes for head and neck surgical patients.

Methods

Extensive review of the medical literature was performed and relevant studies in both the head and neck surgery and other surgical specialties were considered for inclusion.

Results

A total of 18 aspects of perioperative care were included in this review. The literature search included 276 publications considered to be the most relevant and up to date evidence. Each topic is concluded with recommendation grade and quality of evidence for the recommendation.

Conclusion

Since it's conception, enhanced recovery after surgery (ERAS) protocols have continued to push for comprehensive and evidence based postsurgical care to improve patient outcomes. Head and neck oncology is one of the newest fields to develop a protocol. Due to the complexity of this patient population and their postsurgical needs, a multidisciplinary approach is needed to facilitate recovery while minimizing complications. Current and future advances in head and neck cancer research will serve to strengthen and add new principles to a comprehensive ERAS protocol.

Level of Evidence

2a.

Clinical Outcomes of Enhanced Recovery After Surgery Program in Elderly Patients Undergoing Transabdominal Preperitoneal

Background: Enhanced recovery after surgery (ERAS) protocol is an effective evidence-based multidisciplinary protocol to optimize the postsurgical recovery process through perioperative interventions. The aim of the present study was to evaluate the effects of ERAS program on operation-related indicators, complications, pain, and quality of life in patients older than 60 years undergoing the transabdominal preperitoneal (TAPP) approach. Methods: This was a retrospective study of prospectively collected data from a single institution. A total of 160 elderly patients who underwent TAPP were divided into two groups: 80 patients in the ERAS group from January 2019 to December 2020, and 80 patients in the non-ERAS group from January 2021 to December 2022 in the non-ERAS group, and the groups were managed with the ERAS protocol and conventional management, respectively. We compared differences in operation-related indicators, complications, pain, and quality of life between the two groups. Results: Operation-related indicators (exhaust time, postoperative eating time, time to first ambulation, hospitalization cost, and postoperative hospital stay) and early postoperative pain of the ERAS group were superior to those of the non-ERAS group, and the difference had statistical significance (P < .05). More importantly, our results demonstrated that compared with the non-ERAS group, the application of ERAS in inguinal hernia patients may reduce postoperative complications (urinary retention, chronic pain) and improve quality of life. Conclusion: The ERAS program might provide the efficiency and safety approach to optimize clinical outcomes in the elderly patients older than 60 years undergoing TAPP approach.

Effect of Carbohydrate Loading in Diabetic Patients Undergoing Laparoscopic Cholecystectomy: A Randomized Controlled Trial

INTRODUCTION

Investigations of preoperative oral carbohydrate (CHO) loading have primarily examined benefits among patients without diabetes. Preoperative CHO-rich beverages in general populations have resulted in reductions in insulin resistance after surgery, protein loss, metabolic derangements, and immune dysfunction. The aim of this study was to assess the effect of CHO loading in diabetic patients undergoing laparoscopic cholecystectomy.

METHODS

Diabetic patients controlled on oral hypoglycemic agent were randomly divided into two groups: (1) Group T - this group will be given 50 g of maltodextrin before two hours of surgery; (2) Group C - this group will be kept nil per oral as per standard protocol. Blood sugar, serum insulin, serum cortisol, and insulin requirement were compared in both groups.

RESULTS

Blood sugar levels of Group C were found to be significantly higher than that of Group T at six hours and 24 hours. In Group T, a rise in baseline serum insulin (8.94 ± 3.43 mIU/l) was observed at 24 hours (13.23 ± 5.71 mIU/l). A change of 4.29 ± 3.00 mIU/l in serum insulin level was observed. The change in baseline serum insulin levels was 47.99%. In Group C too, a rise in baseline serum insulin (6.27 ± 1.74 mIU/l) was observed at 24 hours (18.00 ± 5.34 mIU/l). A change of 11.73 ± 4.97 mIU/l in serum insulin level was observed. The change in baseline HOMA-IR (homeostatic model assessment for insulin resistance) levels in Group T was 53.66%. A rise (4.39 ± 1.63) in baseline HOMA-IR of Group C (1.65 ± 0.45) was observed at 24 hours (6.04 ± 1.76). The change in baseline HOMA-IR levels in Group C was 266.06%.

CONCLUSIONS

CHO loading is observed to be beneficial in diabetic patients undergoing laparoscopic cholecystectomy. No adverse effects or an increased risk of aspiration were observed in the intervention group during the study period.

Randomized controlled trial of liberal vs. standard fasting instructions in percutaneous cardiac procedures

BACKGROUND

Pre-procedural fasting to reduce aspiration risk is usual care prior to surgery requiring anesthesia. Prolonged fasting, however, can result in dehydration and may adversely affect patient experience and outcomes. Previous studies suggest that providing a supplemental beverage to patients undergoing cardiac and a variety of other surgical procedures improves patients' subjective assessment of thirst and hunger and potentially decreases the need for inotrope and vasopressor therapy. Less is known, however, about the effects of ad libitum clear liquids up to 2 h prior to surgery.

METHODS

Adult patients undergoing transcatheter aortic valve replacement (TAVR) or arrhythmia ablation were randomized (1:1) to ad libitum clear liquids up to 2 h prior to their procedure vs. nil per os (NPO) after midnight (control group, usual care). The primary endpoint was a composite satisfaction score that included patient-reported thirst, hunger, headache, nausea, lightheadedness, and anxiousness prior to surgery. The incidence of case-delay was recorded. Intraoperative vasopressor administration, changes in creatinine, anti-emetic use, and hospital length of stay (LOS) were recorded. Safety endpoints including aspiration were assessed.

RESULTS

A total of 200 patients were randomized and 181 patients were included in the final analysis. Overall, 92% of patients were ASA class III or IV and 23% of patients had NYHA class III or IV symptoms. Groups were well balanced with no significant differences in age, sex or baseline cardiac or renal disease. The composite satisfaction score (primary endpoint) was not significantly different between groups (Ad libitum median = 12, IQR = [6, 17], vs Standard NPO median = 10, IQR = [5, 15], [95% CI = [-1, 4]). No significant differences between the two groups were observed in any of the individual survey questions (thirst, hunger, headache, nausea, lightheadedness, anxiousness). No significant differences between groups were observed for intra-operative vasopressor use, changes in creatinine, rescue anti-emetic use or hospital LOS. There were no case delays attributed to the intervention. There were no cases of suspected aspiration.

CONCLUSION

No adverse events or case delays were observed in the ad libitum clears group. No significant benefit, however, was observed in patient satisfaction or any of the pre-specified secondary endpoints in patients randomized to ad libitum clear liquids up to 2 h prior to their procedure.

TRIAL REGISTRATION

NCT04079543.

Nutrition as prevention for improved cancer health outcomes: a systematic literature review

BACKGROUND

Among adults with cancer, malnutrition is associated with decreased treatment completion, more treatment harms and use of health care, and worse short-term survival. To inform the National Institutes of Health Pathways to Prevention workshop, "Nutrition as Prevention for Improved Cancer Health Outcomes," this systematic review examined the evidence for the effectiveness of providing nutrition interventions before or during cancer therapy to improve outcomes of cancer treatment.

METHODS

We identified randomized controlled trials enrolling at least 50 participants published from 2000 through July 2022. We provide a detailed evidence map for included studies and grouped studies by broad intervention and cancer types. We conducted risk of bias (RoB) and qualitative descriptions of outcomes for intervention and cancer types with a larger volume of literature.

RESULTS

From 9798 unique references, 206 randomized controlled trials from 219 publications met the inclusion criteria. Studies primarily focused on nonvitamin or mineral dietary supplements, nutrition support, and route or timing of inpatient nutrition interventions for gastrointestinal or head and neck cancers. Most studies evaluated changes in body weight or composition, adverse events from cancer treatment, length of hospital stay, or quality of life. Few studies were conducted within the United States. Among intervention and cancer types with a high volume of literature (n = 114), 49% (n = 56) were assessed as high RoB. Higher-quality studies (low or medium RoB) reported mixed results on the effect of nutrition interventions across cancer and treatment-related outcomes.

CONCLUSIONS

Methodological limitations of nutrition intervention studies surrounding cancer treatment impair translation of findings into clinical practice or guidelines.

Real-World Evidence: How Long Do Our Patients Fast?-Results from a Prospective JAGO-NOGGO-Multicenter Analysis on Perioperative Fasting in 924 Patients with Malignant and Benign Gynecological Diseases

BACKGROUND

Despite the key role of optimized fasting in modern perioperative patient management, little current data exist on perioperative fasting intervals in routine clinical practice.

METHODS

In this multicenter prospective study, the length of pre- and postoperative fasting intervals was assessed with the use of a specifically developed questionnaire. Between 15 January 2021 and 31 May 2022, 924 gynecology patients were included, from 13 German gynecology departments.

RESULTS

On average, patients remained fasting for about three times as long as recommended for solid foods (17:02 ± 06:54 h) and about five times as long as recommended for clear fluids (9:21 ± 5:48 h). The average perioperative fasting interval exceeded one day (28:23 ± 14:02 h). Longer fasting intervals were observed before and after oncological or extensive procedures, while shorter preoperative fasting intervals were reported in the participating university hospitals. Smoking, treatment in a non-university hospital, an increased Charlson Comorbidity Index and extensive surgery were significant predictors of longer preoperative fasting from solid foods. In general, prolonged preoperative fasting was tolerated well and quality of patient information was perceived as good.

CONCLUSION

Perioperative fasting intervals were drastically prolonged in this cohort of 924 gynecology patients. Our data indicate the need for better patient education about perioperative fasting.

Effects of preoperative oral enzyme-hydrolyzed rice flour solution on gastric emptying and insulin resistance in patients undergoing laparoscopic cholecystectomy: a prospective randomized controlled trial

BACKGROUND

The effect of preoperative oral carbohydrates (POC) on insulin resistance (IR) of laparoscopic cholecystectomy (LC) remains debatable. Enzyme-hydrolyzed rice flour (EHR) is a kind of water-soluble micromolecular carbohydrates. This study aimed to investigate the impact of preoperative oral EHR solution on gastric emptying and IR in patients undergoing LC.

METHODS

Patients (n = 100) undergoing LC were divided into oral-water group (group C) or oral-EHR solution (group E) randomly (n = 50 each), and the patients drank 300 ml water or EHR solution 2-3 h before surgery respectively. Gastric emptying which was quantized by gastric volume (GV) from antrum ultrasonography, IR indicators, subjective comfort indicators, handgrip strength, postoperative recovery indexes, and complications were recorded.

RESULTS

There were no differences in GV between the two groups before oral administration (V₀), immediately after oral administration (V₁) and before anesthesia induction(V₂). The GV at V₂ (GV₂) reduced to the level of V₀ (GV₀) in the two groups. Fasting glucose (FG), fasting insulin (FINS) and Homa-IR in the two groups increased at postoperative day 1 (Pos 1d) compared with those at preoperative day 1(Pre 1d). Homa-IS and Homa-β in the two groups decreased at Pos 1d compared with those at Pre 1d. FG, FINS and Homa-IR in group E were lower than those in group C at Pos 1d, and Homa-IS and Homa-β were higher in group E than those in group C at Pos 1d. Subjective comfort indictors (hunger, fatigue and anxiety) in group E were lower than those in group C at preoperative 15 min (Pre 15 min) and postoperative 1 h (Pos 1 h). Handgrip strength in group E was raised compared with that in group C at Pre 15 min, Pos 1 h and Pos 1d. There was a lower incidence of nausea and earlier exhaust time in group E.

CONCLUSION

Oral 300 ml EHR solution 2-3 h before LC surgery did not increase the occurrence of reflux and aspiration during anesthesia induction with a normal gastric emptying, ameliorated postoperative IR, improved subjective comfort, and promoted postoperative gastrointestinal function recovery.

TRIAL REGISTRATION

Prospectively registered at the China Clinical Trial Registry, registration number: ChiCTR2000039939, date of registration:14/11/2020.

The Effect of a Checklist for Perioperative Hyperglycemia Management on Surgical Site Infections: A Randomized Controlled Trial

PURPOSE

This study was conducted to evaluate the effect of managing perioperative normoglycemia using a structured and standardized normoglycemia checklist on surgical site infection (SSI).

DESIGN

The study is a prospective randomized controlled experimental case-control study.

METHODS

A normoglycemia checklist was applied to the patients selected for the experimental group preoperatively, intraoperatively, and postoperatively (continuous insulin infusion applied to keep the blood glucose level within the range of 80 to 150 mg/dl until 48 hours postoperative) according to their blood glucose levels. The routine practice available in the clinic was applied to the control group.

FINDINGS

The rate of SSI development in the control group (27.5%) was significantly higher than in the experimental group (2.5%) (P < .05). The culture was examined only in patients with deep incisional SSI, and E. Coli and Gram (-) Bacillus were the most prolific microorganisms. The risk of re-hospitalization of the control group patients was 2 times higher than the experimental group (P < .05).

CONCLUSIONS

This study reports the prevalence, diagnosis, and pathophysiology of perioperative hyperglycemia in patients undergoing cholecystectomy and provides a practical method for the management of blood glucose levels in surgery patients diagnosed with diabetes mellitus and developing stress hyperglycemia.

2023 American Society of Anesthesiologists Practice Guidelines for Preoperative Fasting: Carbohydrate-containing Clear Liquids with or without Protein, Chewing Gum, and Pediatric Fasting Duration-A Modular Update of the 2017 American Society of Anesthesiologists Practice Guidelines for Preoperative Fasting

These practice guidelines are a modular update of the "Practice guidelines for preoperative fasting and the use of pharmacologic agents to reduce the risk of pulmonary aspiration: Application to healthy patients undergoing elective procedures." The guidance focuses on topics not addressed in the previous guideline: ingestion of carbohydrate-containing clear liquids with or without protein, chewing gum, and pediatric fasting duration.

Pilot study on the impact of a carbohydrate loading drink on postprandial glycemic responses and gastric emptying in adults with prediabetes and type 2 diabetes mellitus

BACKGROUND

Preoperative carbohydrate (CHO) loading improves patient outcomes but is not extensively studied in individuals with diabetes mellitus (DM), resulting in limited professional recommendations. This study examined postprandial glycemic responses and gastric emptying rates following consumption of a CHO drink in adults with and without DM.

METHODS

A single-arm, nonrandomized pilot trial was conducted in adults without DM (non-DM) (47.5 ± 2.5 years), with pre-DM (55.8 ± 3.0 years), and with type 2 DM (56.2 ± 2.5 years). Following an overnight fast, participants consumed a 50 g CHO drink followed by 1.5 g liquid paracetamol. Venous blood samples were collected at baseline (ie, t = 0 min) and 15, 30, 45, 60, 90, 120, 150, 180, 210, and 240 min for plasma glucose and serum insulin and paracetamol concentrations to assess gastric emptying.

RESULTS

Participants with DM were older and had a higher body mass index than non-DM participants (31.2 ± 0.9 vs 28.2 ± 0.9). Fasting glucose and hemoglobin A1c levels differed significantly across groups (non-DM: 95.4 ± 3.6 mg/dl and 5.2% ± 0.1%; pre-DM: 111.6 ± 3.6 mg/dl and 5.8% ± 0.1%; DM: 167.4 ± 3.6 mg/dl and 7.2% ± 0.1%). Compared with the non-DM group, DM had increased glucose responses at 30-180 min. Glucose returned to baseline at 150 min in the non-DM and pre-DM groups compared with 210 min in the DM group. Paracetamol concentrations were not significantly different between the non-DM and DM groups.

CONCLUSION

Blood glucose returned to baseline within ~2.5 h in non-DM and pre-DM groups and ~3.5 h in participants with DM following ingestion of a CHO drink. No consistent differences in gastric emptying rates were observed between participants with and without DM.

Clinical practice guidelines for enhanced recovery after colon and rectal surgery from the American Society of Colon and Rectal Surgeons and the Society of American Gastrointestinal and Endoscopic Surgeons

The American Society of Colon and Rectal Surgeons (ASCRS) and the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) are dedicated to ensuring high-quality innovative patient care for surgical patients by advancing the science, prevention, and management of disorders and diseases of the colon, rectum, and anus as well as minimally invasive surgery. The ASCRS and SAGES society members involved in the creation of these guidelines were chosen because they have demonstrated expertise in the specialty of colon and rectal surgery and enhanced recovery. This consensus document was created to lead international efforts in defining quality care for conditions related to the colon, rectum, and anus and develop clinical practice guidelines based on the best available evidence. While not proscriptive, these guidelines provide information on which decisions can be made and do not dictate a specific form of treatment. These guidelines are intended for the use of all practitioners, healthcare workers, and patients who desire information about the management of the conditions addressed by the topics covered in these guidelines. These guidelines should not be deemed inclusive of all proper methods of care nor exclusive of methods of care reasonably directed toward obtaining the same results. The ultimate judgment regarding the propriety of any specific procedure must be made by the physician in light of all the circumstances presented by the individual patient. This clinical practice guideline represents a collaborative effort between the American Society of Colon and Rectal Surgeons (ASCRS) and the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) and was approved by both societies.

The Effect of Preoperative Carbohydrate Intake on Length of Stay and Postoperative Recovery Following Laparoscopic Living Donor Nephrectomy

OBJECTIVE

Enhanced Recovery After Surgery (ERAS) protocols are applied in many surgical procedures and often involve preoperative carbohydrate intake. Research surrounding the utility of ERAS in living donor nephrectomy is limited. The objective of this study was to identify whether living kidney donors who received preoperative oral carbohydrates experienced a difference in length of hospital stay (LOS), duration of time required to resume regular oral food and fluid intake, and incidence of gastrointestinal (GI) complications following laparoscopic nephrectomy compared to historical control donors who underwent preoperative fasting.

METHODS

This study was a retrospective analysis of data from adult subjects at one transplant center who underwent laparoscopic living donor nephrectomy. A total of 55 ERAS subjects who received preoperative carbohydrates and 93 historical control subjects who underwent preoperative fasting were included in the final analysis. The following variables were compared between groups: LOS, time to tolerating a regular oral diet postoperatively, time to meeting 50% of estimated fluid needs by oral intake postoperatively, and incidence of postoperative GI complications.

RESULTS

No significant differences between the ERAS and historical control groups in age, weight, body mass index, sex distribution, or estimated fluid needs were identified. Both groups consisted of predominantly female subjects. ERAS subjects experienced a shorter LOS (2.8 days versus 3.9 days, P < .001), time to tolerating a regular oral diet (36.5 hours versus 68.2 hours, P < .001), and time to meeting 50% of estimated fluid needs (25.3 hours versus 44.6 hours, P < .001) after laparoscopic nephrectomy compared to historical control subjects. No significant difference between groups in the incidence of postoperative GI complications (nausea, vomiting, or ileus) was identified.

CONCLUSION

Our findings demonstrate the advantages of ERAS in living kidney donors undergoing laparoscopic nephrectomy and support ERAS implementation within this patient population.

Preoperative carbohydrate loading before colorectal surgery: a systematic review and meta-analysis of randomized controlled trials

PURPOSE

Preoperative carbohydrate loading has been introduced as a component of many enhanced recovery after surgery programs. Evaluation of current evidence for preoperative carbohydrate loading in colorectal surgery has never been synthesized.

METHODS

MEDLINE, Embase, and CENTRAL were searched until May 2021. Randomized controlled trials (RCTs) comparing patients undergoing colorectal surgery with and without preoperative carbohydrate loading were included. Primary outcomes were changes in blood insulin and glucose levels. A pairwise meta-analysis was performed using inverse variance random effects.

RESULTS

The search yielded 3656 citations, from which 12 RCTs were included. In total, 387 patients given preoperative carbohydrate loading (47.2% female, age: 62.0 years) and 371 patients in control groups (49.4% female, age: 61.1 years) were included. There was no statistical difference for blood glucose and insulin levels between both patient groups. Patients receiving preoperative carbohydrate loading experienced a shorter time to first flatus (SMD: - 0.48 days, 95% CI: - 0.84 to - 0.12, p = 0.008) and stool (SMD: - 0.50 days, 95% CI: - 0.86 to - 0.14, p = 0.007). Additionally, length of stay was shorter in the preoperative carbohydrate loading group (SMD: - 0.51 days, 95% CI: - 0.88 to - 0.14, p = 0.007). There was no difference in postoperative morbidity and patient well-being between both groups.

CONCLUSIONS

Preoperative carbohydrate loading does not significantly impact postoperative glycemic control in patients undergoing colorectal surgery; however, it may be associated with a shorter length of stay and faster return of bowel function. It merits consideration for inclusion within colorectal enhanced recovery after surgery protocols.

Effect of Preoperative Oral Carbohydrate on Patients Undergoing Gynecological Laparoscopic Surgery With Different Fasting Times: A Randomized Control Study

PURPOSE

This study aimed to investigate the effect of preoperative oral carbohydrates (POC) on patients undergoing gynecological laparoscopic surgery with different fasting times.

DESIGN

A randomized control study.

METHODS

Two hundred patients were randomly divided into F group (first operation without carbohydrates intake), S group (second operation without carbohydrates intake), Fpo group (first operation with POC intake), and Spo group (second operation with POC intake). The visual analog scale (VAS) of thirst and hunger, perioperative buffer excess (BE), electrolyte and glucose levels, as well as insulin resistance (IR) were compared. Time to first flatus, hospital stay, and eating time were also recorded.

FINDINGS

POC reduces the aggravation of thirst and hunger discomfort during the perioperative period. Abnormal perioperative BE and lactate levels were found in patients of F and S groups, while those in the Fpo and Spo groups almost returned to normal. Patients in all groups had preoperative hypokalemia, and those in the Fpo and Spo groups recovered quickly to normal intraoperatively. IR in patients in the Fpo and Spo groups retured to preoperative levels after surgery while, those in the F and S groups persisted until 48 hour postoperatively. No significant differences in postoperative nausea and vomiting, time to first flatus, time of first eating, and postoperative hospital stay were found among the four groups.

CONCLUSION

POC accelerates postoperative recovery in patients undergoing gynecological laparoscopy with different fasting times.

Effects of preoperative carbohydrate loading on recovery after elective surgery: A systematic review and Bayesian network meta-analysis of randomized controlled trials

Background

Preoperative carbohydrate loading is an important element of the enhanced recovery after surgery (ERAS) paradigm in adult patients undergoing elective surgery. However, preoperative carbohydrate loading remains controversial in terms of improvement in postoperative outcomes and safety. We conducted a Bayesian network meta-analysis to evaluate the effects and safety of different doses of preoperative carbohydrates administrated in adult patients after elective surgery.

Methods

MEDLINE (PubMed), Web of Science, EMBASE, EBSCO, the Cochrane Central Register of Controlled Trials, and China National Knowledge Infrastructure (CNKI) were searched to identify eligible trials until 16 September 2022. Outcomes included postoperative insulin resistance, residual gastric volume (RGV) during the surgery, insulin sensitivity, fasting plasma glucose (FPG), fasting serum insulin (Fin) level, the serum levels of C-reactive protein (CRP), postoperative scores of pain, patients' satisfaction, thirst, hunger, anxiety, nausea and vomit, fatigue, and weakness within the first 24 h after surgery and the occurrences of postoperative infection. The effect sizes were estimated using posterior mean difference (continuous variables) or odds ratios (dichotomous variables) and 95 credible intervals (CrIs) with the change from baseline in a Bayesian network meta-analysis with random effect.

Results

Fifty-eight articles (N = 4936 patients) fulfilled the eligibility criteria and were included in the meta-analysis. Both preoperative oral low-dose carbohydrate loading (MD: -3.25, 95% CrI: -5.27 to -1.24) and oral high-dose carbohydrate loading (MD: -2.57, 95% CrI: -4.33 to -0.78) were associated with postoperative insulin resistance compared to placebo/water. When trials at high risk of bias were excluded, association with insulin resistance was found for oral low-dose carbohydrate loading compared with placebo/water (MD: -1.29, 95%CrI: -2.26 to -0.27) and overnight fasting (MD: -1.17, 95%CrI: -1.88 to -0.43). So, there was large uncertainty for all estimates vs. control groups. In terms of safety, oral low-dose carbohydrate administration was associated with the occurrences of postoperative infection compared with fasting by 0.42 (95%Crl: 0.20-0.81). In the other outcomes, there was no significant difference between the carbohydrate and control groups.

Conclusion

Although preoperative carbohydrate loading was associated with postoperative insulin resistance and the occurrences of postoperative infection, there is no evidence that preoperative carbohydrate administration alleviates patients' discomfort.

Systematic review registration

[https://www.crd.york.ac.uk/PROSPERO/], identifier [CRD42022312944].

Effect of Preoperative Oral Carbohydrates on Insulin Resistance in Older Adults Who Underwent Total Hip or Knee Arthroplasty: A Prospective Randomized Trial

INTRODUCTION

Preoperative carbohydrate drinks are recommended to reduce fasting time before surgery. Older adults are at risk of pulmonary aspiration and hyperglycemia after consuming carbohydrate drinks because of increased insulin resistance and delayed gastric emptying. We investigated the effects of oral carbohydrate drinks on perioperative insulin resistance, metabolic responses, and gastric volume in older adults.

METHODS

Fifty-six patients (aged more than 65 years) were randomly assigned to the control or carbohydrate (CHO) group. The CHO group received 400 mL of a carbohydrate drink 2 to 3 hours before anesthesia. The control group was allowed clear fluid intake 2 hours before anesthesia. Blood glucose and insulin levels were measured before intake of the carbohydrate drink and 1 hour postoperatively. Gastric volume was measured before spinal anesthesia. Insulin resistance was calculated using the homeostasis model assessment for insulin resistance.

RESULTS

Homeostasis model assessment for insulin resistance was not different between the control and CHO groups preoperatively (2.5 versus 3.3, P = 0.156) or postoperatively (2.6 versus 2.4, P = 0.817). Preoperative gastric volume was comparable between the control and CHO groups (35.5 versus 30.8 mL, P = 0.696).

DISCUSSION

Preoperative oral consumption of carbohydrates did not affect insulin resistance or gastric volume in older adults undergoing total knee or hip arthroplasty. Preoperative carbohydrate loading is safe in older adults undergoing total knee or hip arthroplasty.

DATA AVAILABILITY

The data that support the findings of this study are available from the corresponding author on reasonable request.

CLINICAL TRIAL REGISTRATION

ClinicalTrials.gov (No. NCT04206189).

The Practical Effect of Action Intervention Strategy Combined Based on Surgical and Psychological Factors

This study mainly analyzes the related surgical and psychological factors that cause the change of thirst degree after gastrointestinal surgery, and observes the practical effect of action intervention strategy combined with the two factors on reducing postoperative thirst degree. Based on this, the clinical data of 87 patients who underwent gastrointestinal tumor resection in our hospital from January 2020 to January 2021 is retrospectively analyzed. The degree of thirst is evaluated by the visual analogue scale (VAS) and the subjects are divided into three groups: a mild group (n = 29), a moderate group (n = 35), and a severe group (n = 23), and their psychological and surgical indicators are compared and analyzed. The results show that the thirst degree and light comfort of mouth in the study group are better than those in the control group at 2 h after surgery, and there is no significant difference when compared to 6 h after surgery, but the thirst degree and oral discomfort in the control group at 6 h after surgery are significantly higher than those in the study group at 2 h after surgery. It is suggested that an action research intervention strategy with a high practical effect can effectively reduce postoperative thirst and oral discomfort.

ERAS failure and major complications in elective colon surgery: Common risk factors

Background

Proper implementation and practice of an Enhanced Recovery After Surgery (ERAS) protocol streamlines perioperative management to its optimum, resulting in fewer complications and lower costs. This study aims to identify potential risk factors for the failure of ERAS and for major postoperative complications in patients with elective colon resection.

Materials and methods

This was a single center retrospective analysis including all consecutive patients for elective colon resection during June 2017 - June 2019. All patients were treated within an upgraded ERAS program.

Results

908 patients were included. Median ERAS compliance was 67%. Over 70% compliance was associated with a significantly lower median complication index and a shorter median hospital stay and was set as threshold in further analyses. In a multivariate regression analysis, male gender, American Society of Anesthesiologists Physical Status (ASA PS) Classification IV, open surgery, and albumin level < 34 independently predicted increased risk for failure of ERAS. Furthermore, multivariate analyses revealed that male gender, cancer in the right hemicolon/transverse colon/splenic flexure, open surgery, failure to mobilize postoperatively, and administration of > 60 mg oxycodone postoperatively, independently predicted increased risk of postoperative ileus. Volvulus as primary diagnosis, conversion of laparoscopy to open surgery, failure to mobilize postoperatively, and preoperative hemoglobin < 100 g/l were found to independently predict increased risk of anastomotic dehiscence.

Conclusions

We suggest that patients of male gender, high ASA class, challenged mobility, and higher risk in open surgery, be managed with powered preoperative counseling, including rigorous physiotherapy, and operated on by two senior colorectal surgeons, in order to diminish the risk of conversion to open surgery and of postoperative complications.

The effect of pre-operative carbohydrate loading in femur fracture: a randomized controlled trial

BACKGROUND

Femur fracture is a major burden among elderly people, leading patients to be bedridden for a long time in the hospital. The body is more likely to be in a catabolic state as a result of the prolonged fasting period required for surgery, leading to an increase in insulin resistance. Pre-operative carbohydrate loading has been shown to improve postoperative outcomes in several countries. The study aimed to evaluate the effect of pre-operative carbohydrate loading in femur fracture surgery.

METHODS

This study was single-center, hospital-based, open-label, parallel-group randomized controlled trial conducted between August 2020 and November 2021. A total of 66 participants, aged 50 years and above having femur fractures planned for surgery were included in this study and assigned to the control (n = 33) and study (n = 33) groups through computer-generated random numbers. The control group was kept fasting from midnight to the next morning as in existence while the study group was intervened with carbohydrate loading according to the Enhanced Recovery After Surgery (ERAS) protocol. The pre-operative nutritional status was identified and the postoperative outcomes were measured using the Visual Analogue Score (VAS), Cumulative Ambulatory Score (CAS), and Modified Barthel Index (MBI) scoring systems. Statistical analyses were performed using the Chi-square test and the Student's two-sample t-test to compare the outcomes between the two groups.

RESULTS

All the participants completed the study. There was a significant reduction in the average postoperative pain in the carbohydrate loading group (VAS: 4.8 (SD ± 1.8), 95% CI: 4.7-5.4) as compared to the control group (VAS: 6.1 (SD ± 2.1), 95% CI: 5.3-6.8). The average CAS showed a significant improvement in regaining the mobility function of participants in the study group (CAS: 8.1 (SD ± 2.8), 95% CI: 7.1-9.1) than that of the control group (CAS: 6.8 (SD ± 2.8), 95% CI: 5.8-7.8). The mean MBI score of the participants at the time of discharge from the hospital was higher in the study group (MBI:13.1 (SD ± 2.3), 95% CI: 12.2-13.9) compared to the control group (MBI: 11.8 (SD ± 3.1), 95% CI:10.6-12.9). Similarly, the length of hospital stay after surgery had decreased in the study group than in the control group.

CONCLUSIONS

The uptake of carbohydrate loading showed reduced post-operative pain, enhanced functional mobility, and decreased length of hospital stay. This study warrants larger trials to show the effect of pre-operative carbohydrate loading in a clinical setting.

TRIAL REGISTRATION

NCT04838366, first registered on 09/042021 ( https://clinicaltrials.gov/ct2/show/NCT04838366 ).

Abbreviated perioperative fasting management for elective fresh fracture surgery: guideline adherence analysis

BACKGROUND

Long-term fasting for elective surgery has been proven unnecessary based on established guidelines. Instead, preoperative carbohydrate loading 2 h before surgery and recommencing oral nutrition intake as soon as possible after surgery is recommended. This study was performed to analyze the compliance with and effect of abbreviated perioperative fasting management in patients undergoing surgical repair of fresh fractures based on current guidelines.

METHODS

Patients with fresh fractures were retrospectively analyzed from the prospectively collected database about perioperative managements based on enhanced recovery of surgery (ERAS) from May 2019 to July 2019 at our hospital. A carbohydrate-enriched beverage was recommended up to 2 h before surgery for all surgical patients except those with contraindications. Postoperatively, oral clear liquids were allowed once the patients had regained full consciousness, and solid food was allowed 1 to 2 h later according to the patients' willingness. The perioperative fasting time was recorded and the patients' subjective comfort with respect to thirst and hunger was assessed using an interview-assisted questionnaire.

RESULTS

In total, 306 patients were enrolled in this study. The compliance rate of preoperative carbohydrate loading was 71.6%, and 93.5% of patients began ingestion of oral liquids within 2 h after surgery. The median (interquartile range) preoperative fasting time for liquids and solids was 8 (5.2-12.9) and 19 (15.7-22) hours, respectively. The median postoperative fasting time for liquids and solids was 1 (0.5-1.9) and 2.8 (2.2-3.5) hours, respectively. A total of 70.3% and 74.2% of patients reported no thirst and hunger during the perioperative period, respectively. Logistic regression analysis showed that the preoperative fasting time for liquids was an independent risk factor for perioperative hunger. No risk factor was identified for perioperative thirst. No adverse events such as aspiration pneumonia or gastroesophageal reflux were observed.

CONCLUSIONS

In this study of a real clinical practice setting, abbreviated perioperative fasting management was carried out with high compliance in patients with fresh fractures. The preoperative fasting time should be further shortened to further improve patients' subjective comfort.

Attitudes towards Enhanced Recovery after Surgery (ERAS) interventions in colorectal surgery: nationwide survey of Australia and New Zealand colorectal surgeons

BACKGROUND

Whilst Enhanced Recovery after Surgery (ERAS) has been widely accepted in the international colorectal surgery community, there remains significant variations in ERAS programme implementations, compliance rates and best practice recommendations in international guidelines.

METHODS

A questionnaire was distributed to colorectal surgeons from Australia and New Zealand after ethics approval. It evaluated specialist attitudes towards the effectiveness of specific ERAS interventions in improving short term outcomes after colorectal surgery. The data were analysed using a rating scale and graded response model in item response theory (IRT) on Stata MP, version 15 (StataCorp LP, College Station, TX).

RESULTS

Of 300 colorectal surgeons, 95 (31.7%) participated in the survey. Of eighteen ERAS interventions, this study identified eight strategies as most effective in improving ERAS programmes alongside early oral feeding and mobilisation. These included pre-operative iron infusion for anaemic patients (IRT score = 7.82 [95% CI: 6.01-9.16]), minimally invasive surgery (IRT score = 7.77 [95% CI: 5.96-9.07]), early in-dwelling catheter removal (IRT score = 7.69 [95% CI: 5.83-9.01]), pre-operative smoking cessation (IRT score = 7.68 [95% CI: 5.49-9.18]), pre-operative counselling (IRT score = 7.44 [95% CI: 5.58-8.88]), avoiding drains in colon surgery (IRT score = 7.37 [95% CI: 5.17-8.95]), avoiding nasogastric tubes (IRT score = 7.29 [95% CI: 5.32-8.8]) and early drain removal in rectal surgery (IRT score = 5.64 [95% CI: 3.49-7.66]).

CONCLUSIONS

This survey has demonstrated the current attitudes of colorectal surgeons from Australia and New Zealand regarding ERAS interventions. Eight of the interventions assessed in this study including pre-operative iron infusion for anaemic patients, minimally invasive surgery, early in-dwelling catheter removal, pre-operative smoking cessation, pre-operative counselling, avoidance of drains in colon surgery, avoiding nasogastric tubes and early drain removal in rectal surgery should be considered an important part of colorectal ERAS programmes.

Preoperative carbohydrate loading with individualized supplemental insulin in diabetic patients undergoing gastrointestinal surgery: A randomized trial

BACKGROUND

Preoperative carbohydrate drink is used to improve patients' comfort and recovery, but evidence remains limited in diabetic patients. Herein we investigated the effects of preoperative carbohydrate loading with individualized supplemental insulin regimen in diabetic patients undergoing gastrointestinal surgery.

METHODS

A total of 63 adult patients with type 2 diabetes mellitus undergoing major gastrointestinal surgery were randomized to receive either carbohydrate loading with individualized supplemental insulin (Carbohydrate group) or routine management (Control group). The primary outcome was time to first flatus after surgery. Among secondary outcomes, subjective feelings of thirsty, hunger and fatigue were assessed with the Visual Analogue Scale (scores range from 0 to 100, where 0 indicate no discomfort and 100 the most severe discomfort) before and after surgery. Adverse events were monitored until 24 h after surgery.

RESULTS

All patients were included in the intention-to-treat analysis. Time to first flatus did not differ between groups (median 41 h [IQR 18-69] in the Control group vs. 43 h [27-54] in the Carbohydrate group; hazard ratio 1.24 [95% CI 0.74-2.07]; P = 0.411). The VAS score of preoperative subject feeling of thirsty (median difference -33 [95% CI -50 to -15], P < 0.001), hunger (-25 [-40 to -10], P < 0.001), and fatigue (-5 [-30 to 0], P = 0.004), as well as postoperative subject feeling of thirsty (-50 [-60 to -30], P < 0.001), hunger (-20 [-40 to 0], P = 0.003), and fatigue (0 [-20 to 0], P = 0.020) were all significantly lower in the Carbohydrate group than in the Control group. Intraoperative hypotension (40.6% [13/32] vs. 16.1% [5/31], P = 0.031) and postoperative nausea and vomiting within 24 h (31.3% [10/32] vs. 9.7% [3/31], P = 0.034) occurred less in patients given carbohydrate drink.

CONCLUSION

In diabetic patients undergoing gastrointestinal surgery, preoperative carbohydrate loading with individualized supplemental insulin did not promote gastrointestinal recovery but improved perioperative well-being.

Postoperative Dietary Intake Achievement: A Secondary Analysis of a Randomized Controlled Trial

Sufficient postoperative dietary intake is crucial for ensuring a better surgical outcome. This study aimed to investigate the postoperative dietary intake achievement and predictors of postoperative dietary intake among gynecologic cancer patients. A total of 118 participants were included in this secondary analysis. Postoperative dietary data was pooled and re-classified into early postoperative dietary intake achievement (EDIA) (daily energy intake (DEI) ≥ 75% from the estimated energy requirement (EER)) and delay dietary intake achievement (DDIA) (DEI < 75% EER) There was a significant difference in postoperative changes in weight (p = 0.002), muscle mass (p = 0.018), and handgrip strength (p = 0.010) between the groups. Postoperative daily energy and protein intake in the EDIA was significantly greater than DDIA from operation day to discharged (p = 0.000 and p = 0.036). Four significant independent postoperative dietary intake predictors were found: preoperative whey protein-infused carbohydrate loading (p = 0.000), postoperative nausea vomiting (p = 0.001), age (p = 0.010), and time to tolerate clear fluid (p = 0.016). The multilinear regression model significantly predicted postoperative dietary intake, F (4, 116) = 68.013, p = 0.000, adj. R² = 0.698. With the four predictors’ recognition, the integration of a more specific and comprehensive dietitian-led supportive care with individualized nutrition intervention ought to be considered to promote functional recovery.