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Ann Thorac Surg 1997;63:1568-1571
© 1997 The Society of Thoracic Surgeons
Sections of General Thoracic Surgery and Biostatistics, Mayo Clinic and Mayo Foundation, Rochester, Minnesota
| Abstract |
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Methods. Between 1972 and 1990, 359 patients underwent esophagectomy for stage I or II esophageal carcinoma at Mayo Clinic. We evaluated long-term function and quality of life in 107 of these patients (81 men and 26 women) who survived 5 or more years. Median age at operation was 62 years (range, 30 to 81 years). The operation performed was an Ivor Lewis resection in 77 patients (72%), transhiatal esophagectomy in 14 (13%), extended esophagectomy in 4 (4%), thoracoabdominal esophagectomy in 4 (4%), and other in 8 (7%). Adenocarcinoma was present in 72 patients (67%), squamous cell carcinoma in 28 (26%), and other in 7 (7%). Thirty-four patients (32%) were in postsurgical stage I, 65 (61%) in stage IIA, and 8 (8%) in stage IIB. Median survival was 10.2 years (range, 5.0 to 23.2 years). Follow-up was complete for all patients.
Results. Gastroesophageal reflux was present in 64 patients (60%), symptoms of dumping in 53 (50%), and dysphagia to solid food in 27 (25%). Seventeen patients (16%) were asymptomatic. Factors affecting late functional outcome were analyzed. Patients who had a cervical anastomosis had significantly fewer reflux symptoms (p < 0.05). Dumping syndrome occurred more frequently in younger patients (p < 0.05) and women (p < 0.01). Quality of life was assessed separately by the Medical Outcomes Study 36-Item Short-Form Health Survey and compared with the national norm. Scores measuring physical functioning were decreased (p < 0.01). Scores measuring ability to work, social interaction, daily activities, emotional dysfunction, perception of health, and levels of energy were similar. Mental health scores were higher (p < 0.05).
Conclusions. We conclude that long-term functional outcome after esophagectomy for esophageal carcinoma is affected by age, sex, and type of reconstruction. Quality of life as judged by the patients is similar to the national norm.
| Introduction |
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Early detection and resection of esophageal carcinoma provides the best chance for cure [1]. Long-term survival is mostly stage dependent [24]. Five-year survival for resected stage I carcinoma ranges between 50% and 85% and for resected stage II carcinoma, between 20% and 50% [15]. Because the incidence of adenocarcinoma of the esophagus and esophagogastric junction is increasing [6], endoscopic surveillance for Barrett's disease will very likely lead to earlier cancer detection and resection and possibly improved long-term survival [7, 8]. However, little is known of the functional status and quality of life of long-term survivors after curative resection for esophageal carcinoma [9]. The purpose of this review was to analyze both esophageal function and quality of life in patients who survived more than 5 years after resection of esophageal carcinoma.
| Material and Methods |
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Follow-up data were obtained from the patient's most recent clinic visit and a two-part mail survey. Part one evaluated subjective digestive function as it relates to the esophagectomy patient. It specifically addressed the qualitative and quantitative estimate of dysphagia, the need of esophageal dilation, the presence of heartburn, and the need of medication. Other queries concerned the size and number of daily meals, the presence of dumping symptoms, bowel habits, and weight change.
Part two used the Medical Outcomes Study 36-Item Short-Form Health Survey (MOS SF-36) [11]. This national standardized questionnaire is a self-administered health-assessment tool that permits group comparisons in eight conceptual areas covering general health (health perception), daily activities (physical functioning), work (role-physical), emotional problems (role-emotional), social activities (social functioning), nervousness/depression (mental health), pain (bodily pain), and vitality (energy/fatigue). A numeric score is computed for the answers in each of the conceptual areas. Means and standard deviations of the numerical score were determined and compared with national norms matched for age and sex. The MOS SF-36 was constructed to measure population differences in physical and mental health status, the health burden of chronic disease, and the effect of treatments on general health status. It provides a common yardstick to compare patients with chronic health problems with people sampled from the general population.
Relationship between variables was assessed using
2 tests for discrete factors and Wilcoxon rank sum tests for continuous factors [12]. Evaluation of the patients' responses to the health status questionnaire relative to a matched population (national norm) was done using the signed-rank test [13]. Survival using the 5-year follow-up date as the starting time was estimated using the Kaplan-Meier method [14]. A p value of less than 0.05 was considered significant.
The two-part written survey was sent to 80 patients believed to be alive at the beginning of this study. No response was obtained from 11 patients, 7 of whom were later found to have died before the survey was sent; the other 4 were lost to follow-up. Sixty-nine patients returned the survey. Five patients were excluded because of incomplete data. Thus, complete data were available on 64 patients, for a response rate of 80%. The results of part one of the written survey were combined with information obtained from our outpatient clinic to provide information on all patients.
| Clinical Findings |
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The operation performed was an Ivor Lewis esophagogastrectomy in 77 patients (72%), transhiatal esophagectomy in 14 (13%), extended esophagectomy in 4 (4%), left thoracoabdominal esophagectomy in 4 (4%), partial esophagectomy and total gastrectomy in 3 (3%), and segmental esophageal resection in 5 (5%). Intestinal continuity was reestablished with the stomach in 99 patients (93%), the small bowel in 4 (4%), and the isoperistaltic left colon in 3 (3%). One patient (1%) had a primary end-to-end esophageal anastomosis after a segmental resection of the cervical esophagus. Overall, 87 patients (81.3%) had an intrathoracic anastomosis and 20 patients (18.7%), a cervical anastomosis. A pyloromyotomy was done in 52 (49%) and a pyloroplasty, in 36 (34%).
Forty-nine patients underwent 50 associated procedures. Splenectomy was done in 30 patients (28%), a feeding jejunostomy in 6, cholecystectomy in 5, appendectomy in 2, lung biopsy in 2, and laryngectomy and radical neck dissection, liver biopsy, left vocal cord polypectomy, excision of an ectopic focus of pancreas, and excision of an abdominal wall nevus in 1 patient each.
Intraoperative complications occurred in 2 patients: a tracheal laceration in 1 and bleeding from the azygos vein in the other. Both patients required a right thoracotomy, and both recovered without sequelae. Postoperative complications occurred in 43 patients (40%). Thirteen patients (12%) had anastomotic leaks. Seven leaks were unsuspected and contained on contrast study, and all healed without further complications. The remaining 6 patients required reoperation; 3 had reexploration and drainage of the cervical area, and 3 had thoracotomy, mediastinal debridement, and drainage. Three patients bled postoperatively, and all 3 required reexploration. One patient had ischemia of a gastric conduit and required reexploration and staged reconstruction with a colon interposition. Other complications included supraventricular tachycardia in 12 patients, wound infections in 12, pneumonia or retained secretions in 9, myocardial infarction in 2, and chylothorax, left vocal cord paralysis, vaginal bleeding, and pancreatitis in 1 patient each.
The tumor was located at the gastroesophageal junction in 62 patients (58%), in the middle third of the esophagus in 43 (40%), and in the cervical region in 2 (2%). Adenocarcinoma was present in 72 patients (67%), squamous cell carcinoma in 28 (26%), leiomyosarcoma in 3 (3%), and hemangiopericytoma, small cell carcinoma, undifferentiated carcinoma, and neuroendocrine carcinoma in 1 patient each. Thirty-two (44%) of the 72 patients with adenocarcinoma had histologically confirmed Barrett's mucosa. Thirty-four patients were postsurgically classified as stage I (32%), 65 as stage IIA (61%), and 8 (8%) as stage IIB. Nine patients underwent adjuvant treatment; 3 had chemotherapy, 2 had irradiation, and 4 had both.
| Results |
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| Functional Outcome |
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Factors affecting late functional outcome were analyzed. Patients with a cervical anastomosis had significantly fewer symptoms of reflux (p < 0.05) than those with an intrathoracic anastomosis. Dumping symptoms occurred more frequently in younger patients (p < 0.05) and in women (p < 0.01). Neither the type of resection (p = 0.82) nor the occurrence of a postoperative leak (p = 0.56) influenced the need for dilation. The time interval since operation, tumor location, histology, adjuvant therapy, anastomotic leak, and type or absence of gastric drainage did not significantly affect late functional outcome.
| Quality of Life |
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| Comment |
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Only a minority of our patients (16%) were completely symptom free 5 or more years after esophageal resection. More than 50% complained of reflux symptoms, 50% had some degree of dumping, and 46% had difficulty swallowing. Moreover, dumping symptoms were increased in younger patients and in women. These findings have also been reported by others [1520]. In contrast to our functional outcome findings, however, esophagectomy for cancer did not appear to influence quality of life. Our patients were comparable to the national norm in all areas except physical functioning and actually scored significantly higher than the national norm in the area of mental health.
One significant finding in our study revolves around the location of the anastomosis. The incidence of reflux is significantly reduced if the anastomosis is located in the neck. However, reduction in late reflux has to be balanced against an increased rate of fistula formation and recurrent nerve injury [3, 4] associated with the cervical anastomosis in the early postoperative period. Moreover, the occurrence of a postoperative leak had an adverse impact on quality of life scores that measure physical functioning and health perception. In addition, the need of dilation postoperatively adversely affected the social functioning score. Others [21] have also shown that complications associated with a cervical anastomosis can have long-lasting consequences.
No standardized tool exists for evaluating quality of life of patients with esophageal carcinoma, and the discrepancy in the results observed in the two parts of our study points to the difficulty of developing a valid questionnaire for a specific population of patients. Others [22, 23] have reported similar findings where symptoms specific to esophageal disease correlated poorly with quality of life scores. One possible explanation for the poor correlation is that despite symptoms secondary to the operation, most patients can function at home or work and are happy to be alive and free from cancer [24].
We conclude that long-term survival after esophagectomy for stage I and II esophageal carcinoma is less than that expected in a normal population. Functional outcome after operation is affected by age, sex, and type of resection. For patients surviving 5 or more years, symptoms of reflux, dumping, and dysphagia are not uncommon. However, quality of life after resection as assessed by the patients themselves is similar to the national norm.
| Footnotes |
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Address reprint requests to Dr Deschamps, Section of General Thoracic Surgery, Mayo Clinic and Mayo Foundation, 200 First St SW, Rochester, MN 55905 (e-mail: deschamps.claude{at}mayo.edu).
| References |
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