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A preliminary outcome of modified enhanced recovery protocol versus standard of care in radical cystectomy: an Indonesian experience

Abstract

Background

This study aimed to evaluate the outcomes of modified Enhanced Recovery After Surgery (ERAS) protocol and standard of care (SC) in bladder cancer patients who underwent radical cystectomy (RC). The length of stay and complications rates were the primary outcomes. Time functional recovery, bowel movement, mobilization, drain removal, and other perioperative outcomes were the secondary outcomes.

Methods

A cohort retrospective study was conducted to investigate the effectiveness of the modified ERAS protocol compared to SC in 61 patients who underwent RC (36 ERAS vs. 25 SC).

Results

The modified ERAS protocol was associated with shorter length of stay (9.3 ± 5.0 days vs. 12.6 ± 6.7 days, P = 0.032) and reduction in important postoperative milestones, including days to first solid diet (3.5 ± 1.6 vs. 5.5 ± 1.5, P = 0.000), days to first defecation (4.8 ± 2.4 vs. 7.2 ± 2.4, P = 0.001), days to first walking (4.7 ± 2.2 vs. 7.9 ± 2.4, P = 0.000), and days to drain removal (3.9 ± 1.3 vs. 5.9 ± 2.5 P = 0.001). Postoperative complications rates were lower in the modified ERAS groups, but the result was not statistically significant (P = 0.282). Also, there were no significant differences between transfusion requiring, intensive care monitoring, re-operation, and re-admission between groups.

Conclusion

This study demonstrated that the modified ERAS protocol for RC can accelerate postoperative recovery without any adverse effects on morbidity and mortality.

Background

Currently, there has been a shift in perioperative management from the previous standard of perioperative care which included preoperative fasting routines, various forms of bowel preparation, postoperative bowel rest, and gastrointestinal decompression [1]. The new standard of care (SC) is now developing into a clinical pathway known as the Enhanced Recovery After Surgery (ERAS) protocols [2,3,4,5].

First initiated in 1990 by Professor Henrik Kehlet, ERAS or "fast-tract" programs have become an important focus in perioperative management after colorectal surgery, thoracic and vascular surgery, and now radical cystectomy (RC) [6]. The key importance of the ERAS protocol is preoperative counseling, preoperative nutrition, avoidance of perioperative fasting and carbohydrate loading for up to 2 h preoperatively, standardized analgesic regimens (epidural and non-opioid) and anesthesia, and early mobilization [3]. Emphasizing that the current health-care system is based on cost reduction and the transparency of surgical outcomes, the ERAS protocols have tremendous clinical values and important implication for health systems in general [2, 4].

The ERAS protocols, which are multimodal perioperative care pathways, are designed to modify the body's response to stress in major surgery by minimizing complications and length of stay (LoS) [3], improving cardiopulmonary function, achieving faster restoration of bowel function, and obtaining rapid recovery for normal activities [4]. Multidisciplinary teams must work together through the perioperative period to shorten the process and optimize the patient care [3]. Studies have shown that ERAS protocols could reduce LoS, postoperative complications, and decrease re-admission rate [5].

Several studies have published the application of ERAS in urological surgery and shown a good result [7,8,9,10]. However, implementing the ERAS protocol remains a clinical problem. Accordingly, we tried to make its application simpler with a modified ERAS protocol. In this study, we evaluated the effectiveness of the modified ERAS protocol versus the traditional SC. We hypothesized the analysis would show the modified ERAS can accelerate postoperative recovery.

Methods

Data collection

A cohort retrospective study was conducted at the Urology Department, Dr. Sardjito General Hospital, in Indonesia to compare outcomes of the modified ERAS with SC in 61 patients who underwent RC (36 modified ERAS vs. 25 SC) between January 2014 and June 2020. This study was approved by the Ethics Committee. All the data came from patients’ medical records. All patients similar in terms of operative procedure and type of urinary diversion were performed by a single operator.

The modified ERAS protocol

We are not full applying all of the elements of ERAS protocols in our center because no standardized multidisciplinary agreement has yet been reached there, regarding the implementation of the full ERAS protocols. The modified ERAS protocol is described in Table 1. The main differences between the standard and modified ERAS protocols are in the administration of low molecular weight heparin for thrombosis prophylaxis, carbohydrate loading before surgery, multimodal analgesia, early postoperative oral intake, and use of perianastomotic and pelvic drainage (Table 2).

Table 1 Modified ERAS protocol
Table 2 Difference between ERAS and modified ERAS

Statistical analysis

All data analyses were performed using the SPSS 23.00 (IBM Corp., Chicago). Shapiro–Wilk tests were used to analyze the normality of data. When data distribution was skewed, we analyzed the data using a nonparametric test. Differences in baseline or final data between two groups were analyzed using an independent t-test (Mann–Whitney U test if the data distribution was skewed). For categorical data which were numeric, the Chi-squared test was used. A p-value < 0.05 was considered statistically significant.

Results

Sixty-one patients were enrolled in this study, with 36 patients in the modified ERAS group and 25 patients in the SC group. There were no significant differences in terms of age, staging, body mass index, comorbidities and American Society of Anesthesiologists (ASA) score, operative procedures, and type of urinary diversion. The clinical characteristics of patients are shown in Table 3. There were significantly more male subjects in the study populations, reflecting that bladder cancer is more common in males compared to females.

Table 3 Clinical characteristics of the samples

The median LoS was decreased from 12.6 days in the SC groups to 9.3 days in the modified ERAS group (P = 0.032). In the modified ERAS group, there was also significant reduction in important postoperative milestones, including days to first solid diet (3.5 ± 1.6 vs. 5.5 ± 1.5, P = 0.000), days to first defecation (4.8 ± 2.4 vs. 7.2 ± 2.4, P = 0.001), days to first walking (4.7 ± 2.2 vs. 7.9 ± 2.4, P = 0.000), and days to drain removal (3.9 ± 1.3 vs. 5.9 ± 2.5; P = 0.001) (Table 4).

Table 4 Postoperative milestones

In this study, the overall complications were decreased in the modified ERAS group, but the result was not statistically significant (P = 0.282). According to the Clavien–Dindo classification, there were also no significant differences between both groups in terms of postoperative complication. However, high-grade (grade 3–5) complications were more common in modified ERAS group (Table 5).

Table 5 Comparison of complication rates

The majority of patients in both groups required transfusion intra- or postoperatively, while in the modified ERAS group, a lower transfusion rate was achieved (66.7% for modified ERAS versus 88% for SC, P = 0.057). In the SC group, the estimated intraoperative blood loss was higher, compared with the modified ERAS groups (1478 ± 759.9 vs. 751 ± 579.9; P = 0.000). The differences in postoperative intensive care monitoring are listed in Table 6.

Table 6 Intra- and postoperative monitoring

Three patients in the SC group showed signs of peritonitis due to intestine anastomotic leakage, and 1 patient in the modified ERAS group had a high product drain due to end to side ureter anastomotic leakage before 7 days after surgery. All of these patients required emergency re-operation. Meanwhile, two other cases underwent re-operative debridement and surgical suturing due to wounds dehiscence.

There was also a decrease in re-admission rates within 30 days in the modified ERAS groups compared to the SC group, 8.3% and 16%, respectively. All of the intra- and postoperative monitoring and complications are shown in Tables 5 and 6.

Discussion

Since its popularity in the 1990s [6], the enhanced recovery protocols have been increasingly applied in many clinical practices. This procedure is also widely applied in the field of urologic surgery, especially RC [11]. Several studies related to ERAS protocols in RC have shown good results in postoperative complications, functional recovery, and also LoS [12,13,14]. Application of several elements in the ERAS protocols, such as no preoperative bowel preparation and avoidance of opioid analgesia, results in early return of bowel function, reduced incidence of postoperative nausea and vomitus (PONV), and also reduced postoperative ileus [10, 15].

We modified the ERAS protocol in our center, and the main differences between the standard and modified ERAS protocols are in the administration of LMWH for thrombosis prophylaxis, carbohydrate loading before surgery, multimodal analgesia, postoperative oral intake, and use of perianastomotic and pelvic drainage (Table 2). There have been previous studies which eliminated some of the ERAS protocols in RC [16]. Interestingly, these studies showed consistent results where their protocol was effective in reducing LoS without any differences in complication and re-admission rates. This result was beneficial for the patients with reduced LoS and also for the healthcare providers in terms of resources of care [12].

Additionally, postoperative recovery was also faster in the modified ERAS group, including bowel movement, mobilization, and functional recovery (Table 4). These findings indicate that patients in the modified ERAS groups experienced an early recovery and they could discharge earlier from the hospital. This is similar with a meta-analysis report by Tyson et al. [2] that found the ERAS protocol clearly enhanced postoperative recovery and LoS.

The advantages of the ERAS protocol are not only in LoS and early postoperative recovery. Several studies explained that the ERAS has a positive effect in reducing the incidence of complications [12, 16, 17], such us postoperative ileus, the incidence decreased from 24% to 19.4% in our study. Several factors that can contribute to postoperative ileus including preoperative fasting, bowel preparation, opioid analgesia, use of a nasogastric tube (NGT), delayed mobilization, and postoperative diet restriction [12] have been eliminated in the modified ERAS protocol.

The higher rate of high-grade complications (grade 3–5) based on Clavien–Dindo classification in the modified ERAS group was a concern in this study. To our knowledge, there is no literature that demonstrates this finding. We assume that the difference of the sample size in both groups is the basis for this finding. Further investigation is still needed to validate these finding.

The significant difference in blood loss between both groups could be related with the surgical instrumentation and the surgeon's experience. In the previous series of RC procedures at our center, before the modified ERAS was applied, there was no adequate hemostasis control equipment such as a Harmonic and LigaSure machine. So, we still used the hemostasis technique with monopolar cauterization in the SC group which might affect the results.

We did not find any significant differences between the need for intensive care, re-admission, and mortality between both groups. These findings emphasize that the modified ERAS protocol has advantages in terms of early postoperative recovery, but the results were not significant in terms of morbidity and mortality. These findings were similar with previous several studies, which describe the benefits of the ERAS protocols in RC, including early functional recovery, early mobilization, bowel movement, and reduced LoS [18,19,20].

As far as we know, only a few studies have reported about ERAS for RC that include all of the ERAS protocol [21, 22], and there are no reports that mention the elements of the ERAS protocol that must be applied in RC surgery. This is confirmed by a meta-analysis study which found that a reduction in the elements of the ERAS protocol did not show inferior results compared to applying all of them [23]. Appropriately, there may be a need for a standardized protocol regarding the implementation of the ERAS protocols between any multidiscipline. In our center, there are many different points of view in terms of perioperative fasting, administration of anesthetic drugs, thrombosis prophylaxis, and prevention of nausea and vomiting. These differences warrant further study in the application of the ERAS protocols. We hope that in future, the standardized ERAS protocols can be applied to our center.

Remarkably, our study with several modified components of ERAS showed good results even without a full set of protocols. The reduction or modification of 4 or less components of the ERAS protocols also showed the same results with the application of all components [16, 23]. In the end, we noticed that the modified ERAS protocol gives a promising result. However, further studies are needed to assess the effect of individual ERAS components as separate variables.

Notably, the findings in this study have a good implication for the knowledge of perioperative care protocols. Our study has several limitations due to the retrospective design and potential for bias. However, the data were collected by only one person over a long period of time to avoid bias in data collection, so that the quality of data collection can be maintained. The study design was also a limitation in this study, since a randomized control trial was not used. Finally, the results support the recommendation that our modified ERAS protocol can be a clinical consideration in implementing the ERAS protocol in RC.

Conclusions

Adoption of modified ERAS protocol in perioperative care, particularly in RC, is supported by these data. The modified ERAS protocols dramatically reduced LoS and enhanced postoperative recovery. Furthermore, as compared to SC, the modified ERAS protocol had no significant impact on mortality and morbidity. More research is needed to validate and confirm the benefits of this study, such as ERAS enhances postoperative recovery, which may improve patients' quality of life also lowering healthcare costs and the efficacy of the modified ERAS protocols on a larger scale.

Availability of data and materials

The datasets used and/or analyses during the current study are available from the corresponding author on reasonable request.

Abbreviations

ERAS:

Enhanced Recovery After Surgery

SC:

Standard of care

LoS:

Length of stay

RC:

Radical cystectomy

LMWH:

Low molecular weight heparin

DVT:

Deep venous thrombosis

NSAIDS:

Non-Steroidal Anti-Inflammatory Drugs

PPI:

Proton pump inhibitors

PONV:

Postoperative nausea and vomiting

ASA:

American Society of Anesthesiologists

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Acknowledgements

The authors acknowledge the medical research unit of Universitas Gadjah mada for supporting this study.

Funding

Not applicable.

Author information

Affiliations

Authors

Contributions

AZH and SAK involved in study concept and design. SAK and AZH involved in data acquisition. AZH, SAK and GAA took part in drafting of manuscript. SAK, GAA and AZH involved in critical revision of the manuscript. All authors have read and approved the manuscript.

Corresponding author

Correspondence to Said Alfin Khalilullah.

Ethics declarations

Ethics approval and consent to participate

This study was registered with the ethical clearances of Universitas Gadjah Mada, Medical and Health Research Ethics Committee (KE/FK/1388/EC/2020) and approved by the appropriate institutes’ ethics committee. Consent to participate was not applicable as this was a retrospective chart review.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

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Hendri, A.Z., Khalilullah, S.A. & Aditya, G.A. A preliminary outcome of modified enhanced recovery protocol versus standard of care in radical cystectomy: an Indonesian experience. Afr J Urol 27, 111 (2021). https://doi.org/10.1186/s12301-021-00213-2

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Keywords

  • Radical cystectomy
  • Modified ERAS
  • Bladder cancer
  • Complication