Systematic review of patient-reported outcome measures in the surgical treatment of patients with esophageal cancer

What defines the "value" of robotic surgery for patients with gastrointestinal cancers? Perspectives from a U.S. Cancer Center

The use of robotic surgery has experienced rapid growth across diverse medical conditions, with a notable emphasis on gastrointestinal cancers. The advanced technologies incorporated into robotic surgery platforms have played a pivotal role in enabling the safe performance of complex procedures, including gastrectomy and pancreatectomy, through a minimally invasive approach. However, there exists a noteworthy gap in high-level evidence demonstrating that robotic surgery for gastric and pancreatic cancers has substantial benefits compared to traditional open or laparoscopic methods. The primary impediment hindering the broader implementation of robotic surgery is its cost. The escalating healthcare expenses in the United States have prompted healthcare providers and payors to explore patient-centered, value-based healthcare models and reimbursement systems that embrace cost-effectiveness. Thus, it is important to determine what defines the value of robotic surgery. It must either maintain or enhance oncological quality and improve complication rates compared to open procedures. Moreover, its true value should be apparent in patients' expedited recovery and improved quality of life. Another essential aspect of robotic surgery's value lies in minimizing or even eliminating opioid use, even after major operations, offering considerable benefits to the broader public health landscape. A quicker return to oncological therapy has the potential to improve overall oncological outcomes, while a speedier return to work not only alleviates individual financial distress but also positively impacts societal productivity. In this article, we comprehensively review and summarize the current landscape of health economics and value-based care, with a focus on robotic surgery for gastrointestinal cancers.

Postoperative Outcomes and Quality of Life After Left Thoracoabdominal Esophagogastrectomy: Contrasting Esophagogastrostomy with Esophagojejunostomy

BACKGROUND

Following left thoracoabdominal (LTA) esophagogastrectomy, gastrointestinal continuity can be re-established via esophagogastrostomy or esophagojejunostomy. We explored how the method of reconstruction impacted postoperative outcomes and quality of life (QoL).

METHODS

From January 2007 to January 2022, patients undergoing LTA were identified from a single center's prospectively maintained database. Following esophagogastrectomy or extended total gastrectomy, an esophagogastrostomy (GAS) or Roux-en-Y esophagojejunostomy (R-Y) was fashioned. Postoperative outcomes were compared according to the method of reconstruction. The Functional Assessment of Cancer Therapy-Esophagus (FACT-E) questionnaire compared QoL.

RESULTS

Of the 147 LTA patients identified, 135 (92%) were included-97 GAS (72%) and 38 R-Y patients (28%). R-Y patients had more ypT3/4 lesions (97% vs. 61%, p ≤ 0.001) and a similar incidence of ypN+/M+ disease. Anastomotic leaks were more common among GAS patients (17% vs. 3%, p = 0.023), however grade 3/4 complications (26.6% vs. 19.4%, p = 0.498), reoperation, intensive care admission, hospital representation and readmission were similar. FACT-E data were available for 68/97 (70%) GAS patients and 22/38 (58%) R-Y patients, with scores for 80/21/24/18/23/24 patients at baseline/preoperatively/1 month/3-6 months/1-3 years/3+ years postoperatively, respectively. Comparing between the groups, the scores were similar at each timepoint. FACT-E improved between baseline and preoperatively (79, 34-124 vs. 102, 81-123, p = 0.027). Only at 3+ years were postoperative scores equivalent to preoperative values. GAS patients had more reflux and esophagitis >6 months postoperatively (54% vs. 13%, p = 0.048; 62% vs. 0%, p ≤ 0.001).

CONCLUSION

While the type of reconstruction did not affect QoL, it did affect the postoperative course.

Recovery of Patient-reported Quality of Life After Esophagectomy

BACKGROUND

Esophagectomy is an important, but potentially morbid, operation used to treat benign and malignant conditions that may significantly impact patient quality of life (QOL). Patient-reported outcomes (PROs) are measures of QOL that come directly from patient self-report. This study characterizes patterns of change and recovery in PROs in the first year after esophagectomy.

METHODS

Longitudinal QOL scores measuring physical function, pain, and dyspnea were obtained from esophagectomy patients during all clinic visits. PRO scores were obtained using the National Institutes of Health-sponsored Patient-Reported Outcomes Measurement Information System from April 2018 to February 2021. Mean PRO scores over 100 days after surgery were compared with baseline PRO scores using mixed-effects modeling with compound symmetry correlational structure.

RESULTS

One hundred three patients with PRO results were identified. Reasons for esophagectomy were malignancy (87.4%), achalasia (5.8%), stricture (5.8%), and dysplasia (1.0%). When comparing mean PRO scores at visits ≤ 50 days after surgery with preoperative PRO scores, physical function scores declined by 27.3% (P < .001), whereas dyspnea severity and pain interference scores had increased by 24.5% (P < .001) and 17.1% (P < .001), respectively. Although recovery occurred over the course of the 100 days after surgery, mean physical function scores and dyspnea scores were still 12.7% (P = .02) and 26.4% (P = .001) worse, respectively, than mean preoperative levels.

CONCLUSIONS

Despite declines in QOL scores immediately after esophagectomy, recovery back toward baseline was observed during the first 100 days. These findings are of considerable importance when counseling patients regarding esophagectomy, tracking recovery, and implementing quality improvement initiatives. Further long-term follow-up is needed to determine recovery beyond 100 days.

Outcomes of Standardized Protocols in Supercharged Pedicled Jejunal Esophageal Reconstruction

BACKGROUND

This study evaluated clinical and patient-reported outcomes (PROs) of long-segment supercharged pedicled jejunal (SPJ) interposition after implementation of a dedicated multidisciplinary pathway and technical refinements.

METHODS

This study was a 6-year review of consecutive patients who underwent complex esophageal reconstruction with SPJ interposition. Clinical data were abstracted, and PRO data were collected prospectively by using the Upper Digestive Disease mobile application (UDD App). This standardized questionnaire comprised domains for mental and physical health, pain, dysphagia, reflux, hypoglycemia dumping, and gastrointestinal dumping symptoms. Operative refinements were comprehensively established by 2018.

RESULTS

A total of 19 patients were included in the study, 15 of whom had a history of esophageal malignant disease and neoadjuvant chemoradiation. Most patients (18; 95%) underwent delayed reconstruction after diversion. There was no 90-day mortality or flap loss. Most patients (18; 95%) achieved an enteral diet. Seven patients (37%) experienced early complications (<90 days) requiring procedural intervention. The incidence of any medical or surgical complication was similar in the earlier (2015-2017) and late (2018-2020) cohorts, but aspiration events, surgical site infections, anastomotic leak rates, and median hospital stay (reduced from 15 days [IQR, 10-21 days] to 9 days [IQR, 9-13 days]) improved in the contemporary cohort. PRO data were collected in 14 of 15 (93%) living patients. Severe symptoms in at least 1 domain were reported by most patients (11; 79%) and improved over time.

CONCLUSIONS

Dedicated care pathways allow standardization of complex procedures, and targeted modifications may optimize recovery and patient outcomes. This cohort of patients may report severe symptoms that require ongoing monitoring and intervention.

Supercharged Jejunal Interposition

Complex esophageal reconstruction represents a high risk and challenging procedure. A dedicated pathway with multispecialty teams can facilitate a systematic checklist approach to perioperative management and evaluation of long-term outcomes. Refinements in the operative technique for supercharged pedicled jejunum (SPJ) for long segment interposition in esophageal reconstruction are reviewed in this article. Medical and surgical complications among this complex niche group of patients are significant and require care in specialist centers with a focused team. Patient-reported outcomes (PROs) in long-segment SPJ interposition are recognized to provide additional monitoring of surgical outcomes and may help guide interventions for subsequent symptom control.

Lysyl Oxidase-Like Protein-2 Silencing Suppresses the Invasion and Proliferation of Esophageal Cancer Cells

This study explores the effect of silencing lysyl oxidase-like protein-2 (LOXL2) gene on TE-1 cells. TE-1 cells were transfected by LOXL2-siRNA. E-cadherin, LOXL2, and Snail were detected using Western blot and Real-time PCR. Transwell invasion and migration assay was performed. Flow cytometry detected apoptosis. Cell growth was analyzed with CCK-8 and colony formation. After48 h of transfection, compared with control groups, LOXL2 mRNA in the LOXL2-siRNA group (0.40±0.01) lowered significantly (P < 0.05). Consistently, LOXL2 protein in LOXL2-siRNA group was (0.48± 0.02), significantly lower than that in blank control (1.04± 0.03) and negative control (1.02± 0.02) (P < 0.05). After 72 h of cell culture, the absorbance of LOXL2-siRNA group was (0.43±0.04), which reduced significantly than blank control (0.81±0.05) and negative control (0.84±0.06) (P < 0.05). Similarly, cell clone number after LOXL2-siRNA transfection (72.3±4.2)increased significantly than the negative control (178.8±4.6) and blank control (167.3±3.5) (P < 0.05). However, LOXL2 silencing did not significantly affect cell apoptosis. Furthermore, LOXL2 silencing inhibited Snail while increased E-cadherin (P < 0.05). Conclusively, LOXL2 silencing may suppress the invasion and proliferation of esophageal cancer cells via down-regulating Snail, and up-regulating E-cadherin to inhibit EMT in esophageal cancer cells.

Pilot Study of Patient Reported Outcomes in Patients with Esophageal Cancer following Esophagectomy

BACKGROUND

Patient-reported outcomes are critical measures of patient well-being following esophagectomy. In this pilot study, we assessed PROs before and after esophagectomy using the Patient Reported Outcomes Measurement Information System (PROMIS) to assess patient recovery following surgery.

METHODS

We prospectively collected PROMIS dyspnea severity, physical function, and pain interference measures from patients with esophageal cancer undergoing esophagectomy (2017-2020). We merged these data with our institutional Society of Thoracic Surgery esophagectomy database. We used linear mixed-effect multivariable models to assess changes in PROMIS scores (least square mean [LSM] differences) between pre-operative and post-operative timepoints (1-month, 6-month).

RESULTS

The study included 112 patients undergoing esophagectomy. Pain interference, physical function, and dyspnea severity scores were significantly worse 1 month following surgery. While physical function and dyspnea severity scores returned to baseline 6 months after surgery, pain interference scores remained persistently worse (LSM difference 2.7 ± 2.5, p=0.036). PROMIS scores were further assessed among patients undergoing transhiatal esophagectomy compared to transthoracic esophagectomy. Physical function and dyspnea severity scores were similar between the groups at each time point. However, pain interference scores were persistently better among patients undergoing THE at both 1 month (LSM difference 6.5 ± 5.1, p=0.013) and 6 months after surgery (LSM difference 5.2 ± 3.9, p=0.008).

CONCLUSIONS

This pilot study assessing PROMIS scores after esophagectomy for cancer reveals that pain is a persistently reported symptom up to 6 months following surgery, particularly among patients receiving transthoracic esophagectomy.

Short- and long-term follow-up of patients with non-neoplastic esophageal perforation

Purpose

Esophageal perforation is associated with high morbidity and mortality. In addition to surgical treatment, endoscopic endoluminal stent placement and endoscopic vacuum therapy (EVT) are established methods in the management of this emergency condition. Although health-related quality of life (HRQoL) is becoming a major issue in the evaluation of any therapeutic intervention, not much is known about HRQoL, particularly in the long-term follow-up of patients treated for non-neoplastic esophageal perforation with different treatment strategies. The aim of this study was to evaluate patients’ outcome after non-neoplastic esophageal perforation with focus on HRQoL in the long-term follow-up.

Methods

Patients treated for non-neoplastic esophageal perforation at the University Hospital Cologne from January 2003 to December 2014 were included. Primary outcome and management of esophageal perforation were documented. Long-term quality of life was assessed using the Gastrointestinal Quality of Life Index (GIQLI), the Health-Related Quality of Life Index (HRQL) for patients with gastroesophageal reflux disease (GERD), and the European Organization for Research and Treatment of Cancer (EORTC) questionnaires for general and esophageal specific QoL (QLQ-C30 and QLQ-OES18).

Results

Fifty-eight patients were included in the study. Based on primary treatment, patients were divided into an endoscopic (n = 27; 46.6%), surgical (n = 20; 34.5%), and a conservative group (n = 11; 19%). Short- and long-term outcome and quality of life were compared. HRQoL was measured after a median follow-up of 49 months. HRQoL was generally reduced in patients with non-neoplastic esophageal perforation. Endoscopically treated patients showed the highest GIQLI overall score and highest EORTC general health status, followed by the conservative and the surgical group.

Conclusion

HRQoL in patients with non-neoplastic esophageal perforation is reduced even in the long-term follow-up. Temporary stent or EVT is effective and provides a good alternative to surgery, not only in the short-term but also in the long-term follow-up.

The Impact of the Recurrent Laryngeal Nerve Injury on Prognosis After McKeown Esophagectomy for ESCC

Background

The objective of this study was to assess the impact of the recurrent laryngeal nerve injury (RLNI) after esophagectomy on prognosis.

Methods

Retrospectively collected data from 297 patients with esophageal squamous cell carcinoma (ESCC) who underwent McKeown esophagectomy at our department from April 2014 to May 2018, were analyzed.

Results

RLNI occurred in 31.9% of the patients. Left-side RLNI occurred 2.8 times more often than right-side RLNI. Among the cases in which assessment of the vocal cords was continued, 8.4% involved permanent injury. There were no significant differences among clinicopathological data between patients with RLNI and without. Compared with patients without RLNI, patients with RNLI have longer operation time, more number of bronchoscopy suctions, longer postoperation hospital stay, and higher incidence of postoperative complications. T stage, N stage, RLN lymph node metastasis were independent risk factors for the prognosis, but RLNI is not independent risk factors for long-term survival.

Conclusion

RLNI is a serious complication that will affect the short-term prognosis of patients and reduce the quality of life of patients. It should be avoided as much as possible during surgery, but it may not have negative impact on the long-term survival.

Patient reported outcomes (PROs) after minimally invasive and open esophagectomy

Esophagectomy for esophageal malignancies remains an operation with significant potential morbidity and mortality. However, surgical outcomes continue to improve over time and focus has shifted toward not just good outcomes, but quality of life post operatively. Patient reported outcomes (PROs) focus of quality of life measures via validated patient surveys has increasingly become a significant focus. While PROs do have their limitations, they represent a glimpse into the symptomatology, quality of life, and well-being of a patient undergoing a procedure with inherent morbidity. Working to improve outcomes from the perspective of the patient is not a new concept, but has becoming increasingly relevant as surgical quality for all procedures improves. The optimal approach to esophagectomy is controversial. Minimally invasive approaches attempt to avoid laparotomy and thoracotomy with the thought of improving post-operative quality of life by mitigating complications related to those open surgical approaches. The data in favor of laparoscopy and thoracoscopy is quite strong and multiple randomized controlled trials exist in this realm supporting minimally invasive approaches with regards to quality of life outcomes and more rapid return to patient’s preoperative baseline. The data in favor of a robotic approach for esophagectomy is not quite as robust, but more studies show that these approaches mirror the benefits of the laparoscopic and thoracoscopic approaches without robotic assistance.

Patient reported outcomes: integration into clinical practices

Patient-centered care is a growing focus of research and modern surgical practice. To this end, there has been an ever-increasing utilization of patient reported outcomes (PRO) and health-related quality of life metrics (HR-QOL) in thoracic surgery research. Here we describe reasons and methods for integration of PRO measurement into routine thoracic surgical practice, commonly utilized PRO measurement instruments, and several examples of successful integration.

Systematic review of patient reported outcomes (PROs) and quality of life measures after pressurized intraperitoneal aerosol chemotherapy (PIPAC)

Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC) constitutes a recently described surgical technique to administer chemotherapy directly to the peritoneum, under pressure, for patients with peritoneal metastasis (PM). The purpose of an oncological treatment is to improve survival but without altering the patient's quality of life. The aim of this review was to evaluate patient-reported outcomes (PRO) after PIPAC for patients with PM. This systematic review was performed based on the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Between January 1, 2013, and January 1, 2020, studies were selected according to the following criteria: "pressurized intraperitoneal aerosol chemotherapy" OR "PIPAC" AND "patient-reported outcomes" OR "PRO" OR "Quality of life". In this review, 959 PIPAC and five PITAC (Pressurized IntraThoracic Aerosol Chemotherapy) were performed in 425 patients. We highlight the prominent application of generic EORTC QLQ-C30 followed by SF-36 in this review. The PROs according to the EORTC-QLQ-C30 global health score and based on symptom and function scores were stable across most studies. Moreover, PIPAC has improved the PRO of altered patients in two studies. Among 425 patients, the mortality rate was 0.7% and adverse events of Common Terminology Criteria of Adverse Events grade 3 and grade 4 were 9.6% and 1.6%, respectively. We synthesised current research on PROs among patients with PM. This review increases our understanding of the PIPAC strategy from the patient perspective. The implementation of PROs can be complex but will be essential in delivering quality care.

LINC00662 promotes cell viability and metastasis in esophageal squamous cell carcinoma by sponging miR-340-5p and upregulating HOXB2

Background

Previous studies have shown that lncRNA LINC00662 plays an important role in pathogenesis of malignancies. The purpose of this study was to elucidate the regulatory mechanism of LINC00662 in esophageal squamous cell carcinoma (ESCC).

Methods

In this study, the regulatory mechanism of LINC00662 was investigated by RT‐qPCR. MTT, transwell and dual luciferase reporter assays.

Results

Upregulation of LINC00662 was found in ESCC and associated with worse clinical outcomes in ESCC patients. More importantly, knockdown of LINC00662 restrained cell proliferation, migration and invasion in ESCC. In addition, LINC00662 acts as a molecular sponge for miR‐340‐5p in ESCC, and miR‐340‐5p directly targets HOXB2. HOXB2 expression can be positively regulated by LINC00662 in ESCC. Furthermore, HOXB2 downregulation or miR‐340‐5p overexpression weakened the carcinogenesis of LINC00662 in ESCC.

Conclusions

LncRNA LINC00662 promotes the progression of ESCC by upregulating HOXB2 by sponging miR‐340‐5p.

Long noncoding RNA SNHG12 suppresses esophageal squamous cell carcinoma progression through competing endogenous RNA networks

PURPOSE

Esophageal squamous cell cancer (ESCC) has high rates of recurrence and mortality. Small nucleolar RNA host gene 12 (SNHG12) is known to promote the progression of several cancers. Therefore, we aimed to investigate the expression and role of SNHG12 in ESCC.

METHODS

The expression and clinical value of SNHG12 in esophageal cancer were explored using data from The Cancer Genome Atlas (TCGA) and the online server GEPIA. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to verify the expression levels of SNHG12 in ESCC tissues and cell lines. Furthermore, loss-of-function assays were performed to examine the effect of SNHG12 on ESCC cells in vitro and in vivo. The potential competing endogenous RNA networks of SNHG12 in ESCC were explored.

RESULTS

SNHG12 was downregulated in human ESCA tissues compared to control tissues. The expression of SNHG12 was strongly associated with T stage, N stage, and TNM stage. Low SNHG12 expression in esophageal tumor tissues was significantly correlated with poor prognosis. Furthermore, knockdown of SNHG12 not only promoted proliferation, colony formation, migration, and invasion and inhibited apoptosis in ESCC cells in vitro, but also increased tumor growth in vivo. Additionally, this proves that the SNHG12/miRNA-195-5p/BCL9 network might be involved in ESCC.

CONCLUSION

This is the first study to reveal that SNHG12 is downregulated in ESCC tissues and could be used as a prognostic tool. SNHG12 suppressed tumor progression in ESCC cells, serving as a potential biomarker. The SNHG12/miRNA-195-5p/BCL9 network is proposed to be the mechanism leading to ESCC progression.

Preliminary Normative Standards of the Mayo Clinic Esophagectomy CONDUIT Tool

Objective

To collect patient-reported outcomes after esophagectomy to establish a set of preliminary normative standards to aid in symptom-score interpretation.

Patients and Methods

Patients undergoing esophagectomy often have little understanding about postoperative symptom management. The Mayo Clinic esophageal CONDUIT tool is a validated questionnaire comprising 5 multi-item symptom-assessment domains and 2 health-assessment domains. A prospective nonrandomized cohort study was conducted on adult patients who have had esophagectomies using the CONDUIT tool from August 17, 2015, to July 30, 2018 (NCT02530983). The Statistical Analysis System v9.4 (SAS Institute Inc., Cary, NC) was used to calculate and analyze the scores.

Results

Over the study period, 569 patients were assessed for eligibility, and 241 patients consented and were offered the tool. Of these, 188 patients (median age: 65 years; range: 24 to 87 years; 80% male patients) had calculable scores. Of the 188 patients, 50 (26.6%) patients were identified as potential beneficiaries for educational intervention to improve symptoms (received moderate scores for a domain), and 131 (69.7%) patients were identified as needing further testing or provider intervention (received poor scores for a domain) based on the tool.

Conclusion

The CONDUIT tool scores, when compared with standardized scales with established preliminary normative scores, could be used to identify and triage patients who need targeted education, further testing, or provider interventions. These score ranges will serve as the first set of normative standards to aid in the interpretation of conduit performance among providers and patients.

Patient-Reported Outcomes in Surgical Oncology: An Overview of Instruments and Scores

Traditional measures of quality and effectiveness in surgical oncology have focused on morbidity, mortality, and when available, recurrence rates. Measuring patient-reported outcomes (PROs) has become more widely accepted during the last decade. This article reviews instruments commonly used in the surgical treatment of cancer patients to evaluate PROs. In addition, it discusses the linkage of PROs and health-related quality of life measures with traditional surgical complications and highlights future directions related to the expanding use of PROs in the surgical care of cancer patients.

Patient-Reported Outcomes in Cardiothoracic Surgery

BACKGROUND

Current studies in cardiothoracic clinical research frequently fail to use end points that are most meaningful to patients, including measures associated with quality of life. Patient-reported outcomes (PROs) represent an underused but important component of high-quality patient-centered care. Our objective was to highlight important principles of PRO measurement, describe current use in cardiothoracic operations, and discuss the potential for and challenges associated with integration of PROs into large clinical databases.

METHODS

We performed a literature review by using the PubMed/EMBASE databases. Clinical articles that focused on the use of PROs in cardiothoracic surgical outcomes measurement or clinical research were included in this review.

RESULTS

PROs measure the outcomes that matter most to patients and facilitate the delivery of patient-centered care. When effectively used, PRO measures have provided detailed and nuanced quality-of-life data for comparative effectiveness research. However, further steps are needed to better integrate PROs into routine clinical care.

CONCLUSIONS

Incorporation of PROs into routine clinical practice is essential for delivering high-quality patient-centered care. Future integration of PROs into prospectively collected registries and databases, including that The Society of Thoracic Surgeons National Database, has the potential to enrich comparative effectiveness research in cardiothoracic surgery.

The RESTORE Randomized Controlled Trial: Impact of a Multidisciplinary Rehabilitative Program on Cardiorespiratory Fitness in Esophagogastric cancer Survivorship

OBJECTIVE

The Rehabilitation Strategies in Esophagogastric cancer (RESTORE) randomized controlled trial evaluated the efficacy of a 12-week multidisciplinary program to increase the cardiorespiratory fitness and health-related quality of life (HRQOL) of esophagogastric cancer survivors.

BACKGROUND

Patients following treatment for esophagogastric cancer are at risk of physical deconditioning, nutritional compromise, and sarcopenia. Accordingly, compelling rationale exists to target these impairments in recovery.

METHODS

Disease-free patients treated for esophagogastric cancer were randomized to either usual care or the 12-week RESTORE program (exercise training, dietary counseling, and multidisciplinary education). The primary outcome was cardiopulmonary exercise testing (VO2peak). Secondary outcomes included body composition (bioimpedance analysis), and HRQOL (EORTC-QLQ-C30). Outcomes were assessed at baseline (T0), postintervention (T1), and at 3-month follow-up (T2).

RESULTS

Twenty-two participants were randomized to the control group [mean (standard deviation) age 64.14 (10.46) yr, body mass index 25.67 (4.83) kg/m, time postsurgery 33.68 (19.56) mo], and 21 to the intervention group [age 67.19(7.49) yr, body mass index 25.69(4.02) kg/m, time postsurgery 23.52(15.23) mo]. Mean adherence to prescribed exercise sessions were 94(12)% (supervised) and 78(27)% (unsupervised). Correcting for baseline VO2peak, the intervention arm had significantly higher VO2peak at both T1, 22.20 (4.35) versus 21.41 (4.49) mL · min · kg, P < 0.001, and T2, 21.75 (4.27) versus 20.74 (4.65) mL · min · kg, P = 0.001, compared with the control group. Correcting for baseline values, no changes in body composition or HRQOL were observed.

CONCLUSIONS

The RESTORE program significantly improved cardiorespiratory fitness of disease-free patients after esophagogastric cancer surgery, without compromise to body composition. This randomized controlled trial provides proof of principle for rehabilitation programs in esophagogastric cancer.

CLINICAL TRIAL REGISTRATION NUMBER

NCT03314311.

The clinical significance of the intraoperative pathological examination of bilateral recurrent laryngeal nerve lymph nodes using frozen sections in cervical field lymph node dissection of thoracic esophageal squamous cell carcinoma

Background

The aim of this study was to evaluate intraoperative pathological examination of the left and right recurrent laryngeal nerve lymph nodes (LNs) using frozen section as a predictor of cervical LN metastasis.

Methods

Retrospectively collected data from 69 patients with esophageal squamous cell carcinoma who had undergone intraoperative pathological examination of the left and right recurrent laryngeal nerve LNs using frozen sections and three-field LN dissection in the Fujian Medical University Union Hospital from December 2015 to April 2018, was used to explore the relationship between recurrent laryngeal nerve LN metastasis and cervical LN metastasis and to determine whether cervical-field LN dissection should be performed in patients with thoracic esophageal cancer.

Results

In the entire cohort, 15.9% (11/69) of patients had metastasis in the cervical LNs. We detected 1,195 cervical LN, with an average of 17.3 LN dissections per patient; 28 (2.3%) cases had LN metastasis. Patients with recurrent laryngeal nerve LN metastasis tended to have a high incidence of cervical LN metastasis (P=0.017). Multivariate analysis showed that left recurrent laryngeal nerve LN metastasis was the only independent risk factor for cervical LN metastasis (P=0.02). The incidence of postoperative pulmonary infection was 18.8% (13/69), chylothorax was 2.9% (2/69), anastomotic leakage was 2.9% (2/69), and hoarseness was 8.7% (6/69) for the entire cohort. There was no significant increase in complications compared with patients with 2-field LN dissection in our hospital during the same period. Additional studies are necessary to establish postoperative locoregional recurrence rates and long-term survival.

Conclusions

Intraoperative pathological examination of left recurrent laryngeal nerve LN using frozen sections has some prognostic value in predicting cervical LN metastasis and it can be an indicator for the selection of cervical-field dissection in thoracic esophageal carcinoma.

Measurement of patient-reported outcomes. 2: Are current measures failing us?

All instruments designed to measure latent (unobservable) variables, such as patient-reported outcomes (PROs), have three major requirements; a coherent construct theory, a specification equation, and the application of an appropriate response model. The theory guides the selection of content for the questionnaire and the specification equation links the construct theory to scores produced with the instrument. For the specification equation to perform this role, the patient-reported outcome measure (PROM) must employ a response model that generates values for its individual items. The most commonly applied response model in PROM development is the Rasch model. To date this level of measurement sophistication has not been achieved in PRO measurement. Consequently, it is not possible to establish a PROM's true construct validity. However, the development of the Lexile Framework for Reading has demonstrated that such objective measurement is possible for latent variables. This article argues that higher quality PROM development is needed if meaningful and valid PRO measurement is to be achieved. It describes the current state of PROM development, shows that published reviews of PROMs adopt inappropriate criteria for judging their quality, and illustrates how the use of traditional PROMs can lead to incorrect (and possibly dangerous) conclusions being drawn about the efficacy of interventions.

Measurement of patient-reported outcomes after laparoscopic cholecystectomy: a systematic review

BACKGROUND

Patient-reported outcome (PRO) measures (PROMs) are increasingly used as endpoints in surgical trials. PROs need to be consistently measured and reported to accurately evaluate surgical care. Laparoscopic cholecystectomy (LC) is a commonly performed procedure which may be evaluated by PROs. We aimed to evaluate the frequency and consistency of PRO measurement and reporting after LC.

METHODS

MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials were searched for prospective studies reporting PROs of LC, between 2013 and 2016. Data on the measurement and reporting of PROs were extracted.

RESULTS

A total of 281 studies were evaluated. Forty-five unique multi-item questionnaires were identified, most of which were used in single studies (n = 35). One hundred and ten unique rating scales were used to assess 358 PROs. The visual analogue scale was used to assess 24 different PROs, 17 of which were only reported in single studies. Details about the type of rating scale used were not given for 72 scales. Three hundred and twenty-three PROs were reported in 162 studies without details given about the scale or questionnaire used to evaluate them.

CONCLUSIONS

Considerable variation was identified in the choice of PROs reported after LC, and in how they were measured. PRO measurement for LC is focused on short-term outcomes, such as post-operative pain, rather than longer-term outcomes. Consideration should be given towards the development of a core outcome set for LC which incorporates PROs.

ERAS and patient reported outcomes in thoracic surgery: a review of current data

Quality-focused, cost-effective, patient-centered care is at the forefront of current healthcare reform. Recent data show that enhanced recovery after surgery (ERAS) results in improved surgical outcomes and decreased hospital costs. As a result, ERAS has been widely accepted among multiple surgical subspecialties as a modality for increasing the value of healthcare delivered to our patients. While this objective data is convincing for practitioners and administrators alike, how ERAS directly impacts the patient experience is unclear. Patient reported outcomes (PRO) are starting to drive patterns of healthcare delivery and influence surgical decision-making. In order to improve surgical outcomes and deliver patient-centered care, it is imperative that clinicians start reviewing objective metrics contained within morbidity and mortality data alongside subjective data regarding patients' experience. This article reviews the current data surrounding both ERAS and PROs within thoracic surgery and investigates how the two concepts are ultimately related.

Patient-reported outcome domains for the esophageal CONDUIT report card: a prospective trial to establish domains

Background

Health-related quality of life (QoL) deteriorates immediately after esophagectomy. Patients may benefit from periodic assessments to detect increased morbidity on the basis of subjective self-reports. Using input from patients and health care providers, we developed a brief prototype for the esophageal conduit questionnaire (Mayo Clinic Esophageal Conduit Outcomes Noting Dysphagia/Dumping, and Unknown outcomes with Intermittent symptoms over Time after esophageal reconstruction [CONDUIT] Report Card) and previously used it in comparative research. The present study aimed to expand its content and establish health-related QoL and symptom domains of a patient-reported postesophagectomy conduit evaluation tool.

Methods

We expanded tool content by selecting items measuring patient-reported symptoms from existing questionnaires or written de novo. A multidisciplinary group of clinician content-matter experts approved the draft tool, together with a designated patient advocate. The expanded tool was administered to patients postesophagectomy from March 1 to November 30, 2016. We established domains of conduit performance for score reporting through data analysis with exploratory factor analyses. We assessed psychometric properties such as dimensionality, internal consistency, and inter-item correlations in each domain and compared content coverage with other existing measures intended for this patient population. For data that were missing less than 50% of patient responses, the missing values were imputed.

Results

Five multi-item domains were established from data of 76 patients surveyed after esophagectomy; single items were used to assess stricture and conduit emptying. For every multi-item domain, dominance of 1 factor was present. Internal consistency reliability estimates for the domains were 0.87, 0.78, 0.75, 0.80, and 0.83 and average inter-item correlations were 0.40, 0.50, 0.40, 0.33, and 0.73 for dysphagia, reflux, dumping-gastrointestinal symptoms, dumping-hypoglycemia, and pain, respectively. Some items observed to have lower inter-item correlation were reworded or flagged for removal at future validation. For reflux and dumping-related hypoglycemia, additional items were written after these analyses.

Conclusions

The CONDUIT Report Card is a novel questionnaire for assessing QoL and symptoms of patients after esophageal reconstruction. It covers major symptoms of these patients and has good content validity and psychometric properties. The tool can be used to help direct patient care, guide intervention, and compare efficacy of different treatment options.

Trial registration

ClinicalTrials.gov identifier No. 02530983 on 8/18/2015.

Presentation of oropharyngeal dysphagia and rehabilitative intervention following esophagectomy: a systematic review

No study has systematically reviewed the evidence on presentation of oropharyngeal dysphagia and swallowing rehabilitation following esophagectomy. The purposes of this systematic review are to 1) qualitatively synthesize the current findings on oropharyngeal swallowing abnormalities identified by instrumental swallowing evaluations, 2) describe the reported health-related outcomes in relation to swallowing abnormality following esophagectomy, and 3) examine the efficacy of reported rehabilitative interventions for oropharyngeal dysphagia in patients who underwent esophagectomy. Publications were searched using five electronic databases. No language or publication date restrictions were imposed. Two authors performed a blind review for published or unpublished studies that reported swallowing biomechanics and dysphagic symptoms using instrumental evaluation of swallowing, specifically the videofluoroscopic swallowing study and fiberoptic endoscopic evaluation of swallowing, and/or health-related outcomes in relation to swallowing abnormalities, and/or therapeutic interventions for oropharyngeal dysphagia following esophagectomy. Twelve studies out of 2,193 studies including 458 patients met the inclusion criteria. Reported abnormal swallowing biomechanics included vocal fold immobility, delayed onset of swallowing, reduced hyolaryngeal elevation, and reduced opening of the upper esophageal sphincter. Aspiration (0-81%) and pharyngeal residue (22-100%) were prevalent. Those abnormal swallowing biomechanics and swallowing symptoms were commonly reported following both transhiatal and transthoracic esophagectomy. Pneumonia presented in 5-25% of the study patients. One quasi-experimental study examined the effectiveness of swallowing exercises for postoperative oropharyngeal dysphagia; three case series reported a benefit of the chin-tuck maneuver in reducing aspiration and residue. This review revealed distinct swallowing impairments and increased pneumonia risks following esophagectomy. This review also found that evidence on the efficacy of therapeutic interventions was limited. Future studies are warranted to develop effective rehabilitative interventions for postesophagectomy patients with oropharyngeal dysphagia.

Grim-19 expressed by recombinant adenovirus for esophageal neoplasm target therapy

Esophageal squamous cell carcinoma (ESCC) and esophageal adenocarcinoma (EA) are the two most common types of esophageal cancer, which is the sixth highest cause of cancer‑associated mortality and the eighth most common cancer worldwide. Gene associated with retinoid‑interferon (IFN)‑induced mortality‑19 (Grim‑19) is reported to be a cell death activator that may be used to define mechanisms involved in IFN‑β‑ and retinoic acid‑induced cell death and apoptosis in a number of tumor cell lines. The present study constructed a recombinant adenovirus expressing Grim‑19 (rAd‑Grim‑19) and investigated its therapeutic outcomes in ESCC cells and tumor‑bearing mice. Grim‑19 expression was detected in EC‑109 (ESCC) cells by reverse transcription‑quantitative polymerase chain reaction and western blot analysis. Tumor cell death and apoptosis induced by rAd‑Grim‑19 in EC‑109 cells were analyzed by flow cytometry. The inhibitory effects of rAd‑Grim‑19 on EC‑109 growth were determined by MTT assays. Furthermore, the therapeutic effects of rAd‑Grim‑19 were investigated in EC‑109‑bearing mice. The results demonstrated that Grim‑19 mRNA and protein expression was downregulated in EC‑109 esophageal carcinoma cells compared with Het‑1A normal esophageal epithelial cells. In addition, EC‑109 cells exhibited a significant reduction in tumor cell growth in the rAd‑Grim‑19 group compared with the control groups. Furthermore, rAd‑Grim‑19 increased EC‑109 cell apoptosis compared with the control group. These results indicated that rAd-Grim-19 may regulate tumor cell growth and apoptosis. Additionally, the results demonstrated that rAd‑Grim‑19 led to beneficial outcomes and prolonged the survival of esophageal tumor‑bearing mice. In conclusion, the present study demonstrated that rAd‑Grim‑19 may have potential as an antitumor agent for esophageal neoplasms and may therefore be beneficial for patients with esophageal neoplasms.

Prognostic significance and function of the vacuolar H+-ATPase subunit V1E1 in esophageal squamous cell carcinoma

Vacuolar H⁺-ATPase (V-ATPase), a hetero-multimeric ATP-driven proton pump has recently emerged as a critical regulator of mTOR-induced amino acid sensing for cell growth. Although dysregulated activity of cell growth regulators is often associated with cancer, the prognostic significance and metabolic roles of V-ATPase in esophageal cancer progression remain unclear. Here, we show that high levels of V-ATPase subunit V1E1 (V-ATPase V1E1) were significantly associated with shortened disease-free survival in patients with esophageal squamous cell carcinoma (ESCC). Multivariate analysis identified the V-ATPase V1E1 as an independent adverse prognostic factor (hazard ratio;1.748, P = 0.018). In addition, depletion of V-ATPase V1E1 resulted in reduced cell motility, decreased glucose uptake, diminished levels of lactate, and decreased ATP production, as well as inhibition of glycolytic enzyme expression in TE8 esophageal cancer cells. Consistent with these results, the Cancer Genome Atlas (TCGA) data and Gene Set Enrichment Analysis (GSEA) showed a high frequency of copy number alterations of the V-ATPase V1E1 gene, and identified a correlation between levels of V-ATPase V1E1 mRNA and Pyruvate Kinase M2 (PKM2) in ESCC. High expression levels of both V-ATPase V1E1 and phosphorylated PKM2 (p-PKM2), a key player in cancer metabolism, were associated with poorer prognosis in ESCC. Collectively, our findings suggest that expression of the V-ATPase V1E1 has prognostic significance in ESCC, and is closely linked to migration, invasion, and aerobic glycolysis in esophageal cancer cells.

Expression signatures and roles of MicroRNAs in human oesophageal adenocarcinomas

The most common forms of oesophageal cancers are adenocarcinomas and squamous cell carcinoma (SCC). Although the incidence of SCC in the United States tends to be declining, the adenocarcinoma incidence caused by Barrett's oesophagus has been increasing. Oesophageal cancer is regarded as one of the most fatal malignancies with a short prognosis. Systemic manifestations of patients with PCNSL keep backward in spite of recent development of chemoradiotherapy. MicroRNAs are small non‐coding RNAs that can post‐transcriptionally down‐regulate the expression of genes by targeting mRNAs, causing their translational repression as well as degradation. MicroRNAs exert critical functions in many malignancy‐related biological processes, including cell apoptosis, metabolism, proliferation and differentiation. Many deregulated miRNAs have been identified in oesophageal adenocarcinomas, but their biological importance has not yet been fully elucidated. In this study, we review present evidence regarding the potential applications of oesophageal adenocarcinomas associated microRNAs for prognosis and diagnosis of this lethal disease.

Patient-Reported Outcomes in Thoracic Surgery

The existing thoracic surgical literature contains several retrospective and observational studies that include patient-reported outcomes. To deliver true patient-centered care, it will be necessary to universally gather patient-reported outcomes prospectively, including them in routine patient care, clinical registries, and clinical trials.

Fully covered stents are similar to semi-covered stents with regard to migration in palliative treatment of malignant strictures of the esophagus and gastric cardia: results of a randomized controlled trial

Introduction

Stent migration is a significant clinical problem in palliation of malignant strictures in the esophagus and gastro-esophageal junction (GEJ). We have compared a newer design of a fully-covered stent to a widely used semi-covered stent using migration >20 mm as the primary outcome variable. Effects on dysphagia, quality of life (QoL) and re-intervention frequency were also investigated.

Methods

Patients with dysphagia due to non-curable esophagus/GEJ cancer were randomized to receive either a more recent design of a fully-covered stent (n = 48) or a conventional semi-covered stent (n = 47). Chest x-ray, dysphagia and QoL were studied at baseline, one week, four weeks and three months thereafter.

Results

There were no significant differences either in stent migration distance or in the migration frequency. Stent migration during the total study period occurred in 37.2 % in the semi-covered group compared to 20.0 % for the fully-covered group. Dysphagia was measured with Watson and Ogilvie scores and with the dysphagia module in the QoL scale (QLQ-OG25). On average, there was a tendency to better dysphagia relief for the fully-covered design as scored with the two latter dysphagia instruments (p= 0.081 and p= 0.067) at three months and towards more re-interventions in the semi-covered group (p= 0.083).

Conclusion

In spite of its somewhat lower intrinsic radial force, the fully-covered stent was comparable to the conventional semi-covered stent with regard to stent migration. The data further suggest a potential benefit of the fully-covered stent in improving dysphagia in patients with longer life expectancy.

Lymphadenectomy and health-related quality of life after oesophageal cancer surgery: a nationwide, population-based cohort study

OBJECTIVE

The purpose of this study was to clarify whether more extensive surgical lymph node resection during oesophageal cancer surgery influences patients' health-related quality of life (HRQOL).

SETTING

This was a nationwide Swedish population-based study.

PARTICIPANTS

A total of 616 patients who underwent curatively intended oesophageal cancer surgery in 2001-2005 were followed up at 6 months and 5 years after surgery.

OUTCOME MEASURES

HRQOL was assessed with the validated European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core-30 (EORTC QLQ-C30) and the oesophageal cancer-specific module (EORTC QLQ-OES18). The number of removed lymph nodes in relation to HRQOL was analysed using multivariable linear regression, providing mean score differences in HRQOL scores with 95% CIs. The results were adjusted for age, comorbidity, body mass index, tumour stage, tumour histology, postoperative complications and surgeon volume.

RESULTS

The study included 382 and 136 patients who completed the EORTC questionnaires at 6 months and 5 years following surgery, respectively. In general, HRQOL remained stable over time, with only improvements in role function and appetite loss. A larger number of removed lymph nodes did not decrease the HRQOL measure at 6 months or 5 years after surgery.

CONCLUSIONS

More extensive lymphadenectomy during oesophageal cancer surgery might not decrease patients' short-term or long-term HRQOL, but larger studies are needed to establish this potential lack of association.

Mediastinal transposition of the omentum reduces infection severity and pharmacy cost for patients undergoing esophagectomy

BACKGROUND

The greater omentum has been found to be immunologically competent in protecting abdominal organs from inflammation. Anastomotic omentoplasty has been used and proven effective in preventing anastomotic leaks after an esophagectomy. However, pulmonary complications are still a substantial problem after an esophagectomy. This study investigated the benefits of mediastinal transposition of the omentum, a modification of the conventional omental wrapping technique, in controlling overall postoperative intrathoracic complications.

METHODS

From January 2010 to March 2015, 208 consecutive patients receiving an open Ivor-Lewis esophagectomy at our institution were retrospectively reviewed. One hundred twenty-one patients with omentum mediastinal transposition were assigned to the transposition group and 87 patients without omental transposition were placed in the non-transposition group. The patients' demographics, postoperative short-term outcomes, and in-hospital cost were documented and analyzed.

RESULTS

Mediastinal transposition of the omentum led to a shorter postoperative hospital stay (14 vs. 16 d, P=0.038) and a lower intrathoracic infection rate (30.6% vs. 48.3%, P=0.009). Intrathoracic infection was milder in the transposition group (P=0.005), though a non-significant was found in overall complications (P=0.071). The multivariate logistic regression analyses identified omentum mediastinal transposition (P=0.007, OR=0.415) as an independent protective factor for postoperative intrathoracic infection. The total in-hospital cost was comparable in both groups (P>0.05), whereas the pharmacy cost was lower in the transposition group than in the non-transposition group (¥21,668 vs. ¥27,012, P=0.010).

CONCLUSIONS

Mediastinal transposition of the omentum decreases the rate and severity of postoperative intrathoracic infection following an open Ivor-Lewis esophagectomy. This result in decreased pharmacy costs, rather than resulting in an increased economic burden sustained by surgical patients.