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==Overview==
==Overview==
====General approaches====
The predominant therapy for esophageal cancer is surgical resection by [[esophagectomy]]. The disease must be localised in order for it to be operable. Adjunctive [[chemotherapy]] and [[Radiation therapy|radiation]] may be required in more advanced cases of [[esophageal cancer]], and to shrink down a localised tumor so that it may become operable.
[[Image:SEMS endo.jpg|thumb|left|150px|[[Self-expandable metallic stent]]s are used for the [[palliative care|palliation]] of esophageal cancer]]{{-}}


[[Image:esophagael stent.jpg|thumb|left|Shows cancer blocking esophagus. Insets show enlarged area of cancer and a stent placed in the esophagus to keep it open.]]{{-}}
==Esophagectomy==
*Removing a segment of the esophagus is called an [[esophagectomy]].<ref name="pmid16615159">{{cite journal |vauthors=Wang HW, Chu PY, Kuo KT, Yang CH, Chang SY, Hsu WH, Wang LS |title=A reappraisal of surgical management for squamous cell carcinoma in the pharyngoesophageal junction |journal=J Surg Oncol |volume=93 |issue=6 |pages=468–76 |year=2006 |pmid=16615159 |doi=10.1002/jso.20472 |url=}}</ref><ref name="pmid11585510">{{cite journal |vauthors=Triboulet JP, Mariette C, Chevalier D, Amrouni H |title=Surgical management of carcinoma of the hypopharynx and cervical esophagus: analysis of 209 cases |journal=Arch Surg |volume=136 |issue=10 |pages=1164–70 |year=2001 |pmid=11585510 |doi= |url=}}</ref><ref name="Deschamps_2005">{{cite journal |author=Deschamps C, Nichols FC, Cassivi SD, et al. |title=Long-term function and quality of life after esophageal resection for cancer and Barrett’s |journal=Surgical Clinics of North America |volume=85 |issue=3 |pages=649-656 |year=2005 |pmid=15927658}}</ref>
*The disease must be localised in order for it to be operable.
*If a tumor is particularly large but still localised, it may be shrunk down first using [[chemotherapy]] and/or [[Radiation therapy|radiotherapy]] until the tumor becomes of a size that is operable.
*The procedure shortens the distance between the [[pharynx]] and the [[stomach]].
*The [[stomach]], or some other part of the [[gastrointestinal tract]], such as the [[Colon (anatomy)|colon]], is brought up into the chest cavity where it is interposed.
*There are several surgical approaches including:
**Transhiatal [[esophagectomy]] 
**Cervical esophageal cancer resection
**Thoracic cancer resection
**Ivor-Lewis transthoracic [[esophagectomy]]
**Modified Ivor-Lewis transthoracic [[esophagectomy]]
**Tri-incisional esophagectomy
**Esophagogastric junction cancer resection


The treatment is determined by the cellular type of cancer (adenocarcinoma or squamous cell carcinoma ''vs'' other types), the stage of the disease, the general condition of the patient and other diseases present. On the whole, adequate [[nutrition]] needs to be assured, and adequate dental care is vital.
==Surgical Considerations==
*Patients with resectable tumors account for 20-30% of cases with esophageal cancer.<ref name="pmid11585510">{{cite journal |vauthors=Triboulet JP, Mariette C, Chevalier D, Amrouni H |title=Surgical management of carcinoma of the hypopharynx and cervical esophagus: analysis of 209 cases |journal=Arch Surg |volume=136 |issue=10 |pages=1164–70 |year=2001 |pmid=11585510 |doi= |url=}}</ref><ref name="Deschamps_2005">{{cite journal |author=Deschamps C, Nichols FC, Cassivi SD, et al. |title=Long-term function and quality of life after esophageal resection for cancer and Barrett’s |journal=Surgical Clinics of North America |volume=85 |issue=3 |pages=649-656 |year=2005 |pmid=15927658}}</ref>
*In patients with [[adenocarcinoma]], surgery is recommended even if there is a good response with [[chemotherapy]]. Surgery achieves a higher rate of local control and less need for [[Palliative care|palliative]] maneuvers later on.
*Patients in this category should undergo surgery after having completed 4 to 6 weeks of [[chemotherapy]] or chemoradiotherapy.
*Unless, the patient is able to achieve cure without surgery or is unfit for surgery.


If the patient cannot swallow at all, a [[stent]] may be inserted to keep the esophagus patent; stents may also assist in occluding fistulas. A [[nasogastric tube]] may be necessary to continue feeding while treatment for the tumor is given, and some patients require a [[gastrostomy]] (feeding hole in the skin that gives direct access to the stomach). The latter two are especially important if the patient tends to aspirate food or saliva into the airways, predisposing for [[aspiration pneumonia]].
==Indications==
*The following are candidates for first line therapy with [[esophagectomy]]:<ref name="pmid25642338">{{cite journal |vauthors=Wu AJ, Goodman KA |title=Clinical tools to predict outcomes in patients with esophageal cancer treated with definitive chemoradiation: are we there yet? |journal=J Gastrointest Oncol |volume=6 |issue=1 |pages=53–9 |year=2015 |pmid=25642338 |pmc=4294820 |doi=10.3978/j.issn.2078-6891.2014.099 |url=}}</ref><ref name="pmid25642337">{{cite journal |vauthors=Lin SH, Wang J, Allen PK, Correa AM, Maru DM, Swisher SG, Hofstetter WL, Liao Z, Ajani JA |title=A nomogram that predicts pathologic complete response to neoadjuvant chemoradiation also predicts survival outcomes after definitive chemoradiation for esophageal cancer |journal=J Gastrointest Oncol |volume=6 |issue=1 |pages=45–52 |year=2015 |pmid=25642337 |pmc=4294819 |doi=10.3978/j.issn.2078-6891.2014.054 |url=}}</ref>
**T1N0M0 lesions
**T2N0M0 lesions
*The patients with the following are candidates for [[esophagectomy]] following [[neoadjuvant chemotherapy]] or chemoradiotherapy:
**Thoracic esophageal or esophagogastric junction tumors and full-thickness (T3) involvement of the esophagus with/without nodal disease
**T4a disease with invasion of local structures ([[pericardium]], pleura, and/or [[Thoracic diaphragm|diaphragm]] only) that can be resected en bloc, and who are without evidence of metastatic disease to other organ.
 
==Contraindications==
The following are relative contraindications for esophagectomy:<ref name="pmid25428458">{{cite journal |vauthors=Miao L, Chen H, Xiang J, Zhang Y |title=A high body mass index in esophageal cancer patients is not associated with adverse outcomes following esophagectomy |journal=J. Cancer Res. Clin. Oncol. |volume=141 |issue=5 |pages=941–50 |year=2015 |pmid=25428458 |doi=10.1007/s00432-014-1878-x |url=}}</ref>
 
*Advanced age
**Associated with greater morbidity following [[esophagectomy]]
*Comorbid illness
**[[Obesity]] can lead to postoperative complications such as cardiorespiratory complications, anastomotic leakage, and wound infection
 
==Indications for unresectability==
The presence of metastatic disease:
*Such as [[Peritoneum|peritoneal]], [[lung]], [[bone]], [[Adrenal gland|adrenal]], [[brain]], or [[liver]] metastases, or extraregional lymph node spread


==Surgery==
==Surgery==
[[Surgery]] is possible if the disease is localised, which is the case in 20-30% of all patients. If the tumor is larger but localised, chemotherapy and/or radiotherapy may occasionally shrink the tumor to the extent that it becomes "operable"; however, this combination of treatments (referred to as neoadjuvant chemoradiation) is still somewhat controversial in most medical circles. [[Esophagectomy]] is the removal of a segment of the esophagus; as this shortens the distance between the throat and the stomach, some other segment of the digestive tract (typically the [[stomach]] or part of the [[Colon (anatomy)|colon]]) is placed in the chest cavity and interposed.<ref name=Deschamps_2005>{{cite journal |author=Deschamps C, Nichols FC, Cassivi SD, et al. |title=Long-term function and quality of life after esophageal resection for cancer and Barrett’s |journal=Surgical Clinics of North America |volume=85 |issue=3 |pages=649-656 |year=2005 |pmid=15927658}}</ref> If the tumor is metastatic, surgical resection is not considered worthwhile, but palliative surgery may offer some benefit.
===Stage 0 Esophageal Cancer===
Stage 0 [[Squamous cell carcinoma|squamous esophageal cancer]] is rarely seen in the United States, but surgery has been used for this stage of cancer<ref name="pmid11182415">{{cite journal |vauthors=Affleck DG, Karwande SV, Bull DA, Haller JR, Stringham JC, Davis RK |title=Functional outcome and survival after pharyngolaryngoesophagectomy for cancer |journal=Am. J. Surg. |volume=180 |issue=6 |pages=546–50 |year=2000 |pmid=11182415 |doi= |url=}}</ref>
 
===Stage I Esophageal Cancer===
Standard treatment options:
*Chemoradiation with subsequent surgery
*Surgery
 
===Stage II Esophageal Cancer===
Standard treatment options:
*Chemoradiation with subsequent surgery
*Chemoradiation alone
*Surgery alone
 
===Stage III Esophageal Cancer===
Standard treatment options:
*Chemoradiation with subsequent surgery
*Chemoradiation alone
 
===Stage IV Esophageal Cancer===
*At diagnosis, approximately 50% of patients with esophageal cancer will have metastatic disease and will be candidates for palliative therapy.<ref>{{Cite web | title =Esophageal Cancer Treatment | url =http://www.cancer.gov/types/esophageal/hp/esophageal-treatment-pdq#section/_70 }}</ref>
*Standard treatment options:
**Chemoradiation with subsequent [[surgery]] (for patients with stage IVA disease)
**Endoscopic-placed stents to provide palliation of dysphagia
**[[Radiation therapy]] with or without intraluminal intubation and dilation
**Intraluminal [[brachytherapy]] to provide palliation of [[dysphagia]]
**[[Nd:YAG laser]] endoluminal tumor destruction or [[electrocoagulation]]
**[[Chemotherapy]] has provided partial responses for patients with metastatic distal esophageal adenocarcinoma
 
===Stenting===
*If the patient cannot swallow at all, a [[stent]] may be inserted to keep the esophagus patent.<ref name="pmid9087839">{{cite journal |vauthors=Bethge N, Sommer A, Vakil N |title=A prospective trial of self-expanding metal stents in the palliation of malignant esophageal strictures near the upper esophageal sphincter |journal=Gastrointest. Endosc. |volume=45 |issue=3 |pages=300–3 |year=1997 |pmid=9087839 |doi= |url=}}</ref>
*Stents may also assist in occluding fistulas.  
*A [[nasogastric tube]] may be necessary to continue feeding while treatment for the tumor is given, and some patients  may require a [[gastrostomy]] (feeding hole in the skin that gives direct access to the stomach).
*Nasogastric tube and gastrostomy are especially important if the patient tends to aspirate food or saliva into the airways, predisposing for [[aspiration pneumonia]].
 
[[Image:bol.png|thumb|center|500px|Esophageal stent for esophageal cancer placed to relieve symptoms of dysphagia by James Heilman, MD - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=49111485]]
 
===Laser therapy===
*[[Laser therapy]] is described as the use of a high intensity beam of light to destroy malignant cells; it affects only the area it is focused on whilst unharming the healthy cells.<ref name="pmid7529119">{{cite journal |vauthors=Haddad NG, Fleischer DE |title=Endoscopic laser therapy for esophageal cancer |journal=Gastrointest. Endosc. Clin. N. Am. |volume=4 |issue=4 |pages=863–74 |year=1994 |pmid=7529119 |doi= |url=}}</ref><ref name="pmid4026476">{{cite journal |vauthors=Mellow MH, Pinkas H |title=Endoscopic laser therapy for malignancies affecting the esophagus and gastroesophageal junction. Analysis of technical and functional efficacy |journal=Arch. Intern. Med. |volume=145 |issue=8 |pages=1443–6 |year=1985 |pmid=4026476 |doi= |url=}}</ref>
*[[Laser therapy]] is given when tumors are inoperable because of their size, location and/or spread.
*Sometimes, the aim of [[laser therapy]] is palliation, to relieve some symptoms such as [[dysphagia]] and [[pain]].
*[[Photodynamic therapy]] (PDT), a type of [[laser therapy]], involving the use of drugs that are absorbed by cancer cells; when exposed to a particular wave length of light, the drugs become active and destroy the tumor cells.


==Laser therapy==
===Radiotherapy===
[[Laser]] therapy is the use of high-intensity light to destroy tumor cells; it affects only the treated area. This is typically done if the cancer cannot be removed by surgery. The relief of a blockage can help to reduce dysphagia and pain. [[Photodynamic therapy]] (PDT), a type of laser therapy, involves the use of drugs that are absorbed by cancer cells; when exposed to a special light, the drugs become active and destroy the cancer cells.
*[[Radiotherapy]] is given before, during or after [[chemotherapy]] or [[surgery]], and sometimes on its own to control symptoms.<ref name="pmid2032882">{{cite journal |vauthors=Emami B, Lyman J, Brown A, Coia L, Goitein M, Munzenrider JE, Shank B, Solin LJ, Wesson M |title=Tolerance of normal tissue to therapeutic irradiation |journal=Int. J. Radiat. Oncol. Biol. Phys. |volume=21 |issue=1 |pages=109–22 |year=1991 |pmid=2032882 |doi= |url=}}</ref><ref name="pmid13432180">{{cite journal |vauthors=SEAMAN WB, ACKERMAN LV |title=The effect of radiation on the esophagus; a clinical and histologic study of the effects produced by the betatron |journal=Radiology |volume=68 |issue=4 |pages=534–41 |year=1957 |pmid=13432180 |doi=10.1148/68.4.534 |url=}}</ref>
*In patients with localized disease but contraindications to surgery, "proton radiotherapy" may be used with curative intent.


==References==
==References==  
{{reflist|2}}
{{reflist|2}}


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Latest revision as of 16:43, 5 January 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]

Overview

The predominant therapy for esophageal cancer is surgical resection by esophagectomy. The disease must be localised in order for it to be operable. Adjunctive chemotherapy and radiation may be required in more advanced cases of esophageal cancer, and to shrink down a localised tumor so that it may become operable.

Esophagectomy

  • Removing a segment of the esophagus is called an esophagectomy.[1][2][3]
  • The disease must be localised in order for it to be operable.
  • If a tumor is particularly large but still localised, it may be shrunk down first using chemotherapy and/or radiotherapy until the tumor becomes of a size that is operable.
  • The procedure shortens the distance between the pharynx and the stomach.
  • The stomach, or some other part of the gastrointestinal tract, such as the colon, is brought up into the chest cavity where it is interposed.
  • There are several surgical approaches including:
    • Transhiatal esophagectomy
    • Cervical esophageal cancer resection
    • Thoracic cancer resection
    • Ivor-Lewis transthoracic esophagectomy
    • Modified Ivor-Lewis transthoracic esophagectomy
    • Tri-incisional esophagectomy
    • Esophagogastric junction cancer resection

Surgical Considerations

  • Patients with resectable tumors account for 20-30% of cases with esophageal cancer.[2][3]
  • In patients with adenocarcinoma, surgery is recommended even if there is a good response with chemotherapy. Surgery achieves a higher rate of local control and less need for palliative maneuvers later on.
  • Patients in this category should undergo surgery after having completed 4 to 6 weeks of chemotherapy or chemoradiotherapy.
  • Unless, the patient is able to achieve cure without surgery or is unfit for surgery.

Indications

  • The following are candidates for first line therapy with esophagectomy:[4][5]
    • T1N0M0 lesions
    • T2N0M0 lesions
  • The patients with the following are candidates for esophagectomy following neoadjuvant chemotherapy or chemoradiotherapy:
    • Thoracic esophageal or esophagogastric junction tumors and full-thickness (T3) involvement of the esophagus with/without nodal disease
    • T4a disease with invasion of local structures (pericardium, pleura, and/or diaphragm only) that can be resected en bloc, and who are without evidence of metastatic disease to other organ.

Contraindications

The following are relative contraindications for esophagectomy:[6]

  • Advanced age
  • Comorbid illness
    • Obesity can lead to postoperative complications such as cardiorespiratory complications, anastomotic leakage, and wound infection

Indications for unresectability

The presence of metastatic disease:

Surgery

Stage 0 Esophageal Cancer

Stage 0 squamous esophageal cancer is rarely seen in the United States, but surgery has been used for this stage of cancer[7]

Stage I Esophageal Cancer

Standard treatment options:

  • Chemoradiation with subsequent surgery
  • Surgery

Stage II Esophageal Cancer

Standard treatment options:

  • Chemoradiation with subsequent surgery
  • Chemoradiation alone
  • Surgery alone

Stage III Esophageal Cancer

Standard treatment options:

  • Chemoradiation with subsequent surgery
  • Chemoradiation alone

Stage IV Esophageal Cancer

  • At diagnosis, approximately 50% of patients with esophageal cancer will have metastatic disease and will be candidates for palliative therapy.[8]
  • Standard treatment options:
    • Chemoradiation with subsequent surgery (for patients with stage IVA disease)
    • Endoscopic-placed stents to provide palliation of dysphagia
    • Radiation therapy with or without intraluminal intubation and dilation
    • Intraluminal brachytherapy to provide palliation of dysphagia
    • Nd:YAG laser endoluminal tumor destruction or electrocoagulation
    • Chemotherapy has provided partial responses for patients with metastatic distal esophageal adenocarcinoma

Stenting

  • If the patient cannot swallow at all, a stent may be inserted to keep the esophagus patent.[9]
  • Stents may also assist in occluding fistulas.
  • A nasogastric tube may be necessary to continue feeding while treatment for the tumor is given, and some patients may require a gastrostomy (feeding hole in the skin that gives direct access to the stomach).
  • Nasogastric tube and gastrostomy are especially important if the patient tends to aspirate food or saliva into the airways, predisposing for aspiration pneumonia.
Esophageal stent for esophageal cancer placed to relieve symptoms of dysphagia by James Heilman, MD - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=49111485

Laser therapy

  • Laser therapy is described as the use of a high intensity beam of light to destroy malignant cells; it affects only the area it is focused on whilst unharming the healthy cells.[10][11]
  • Laser therapy is given when tumors are inoperable because of their size, location and/or spread.
  • Sometimes, the aim of laser therapy is palliation, to relieve some symptoms such as dysphagia and pain.
  • Photodynamic therapy (PDT), a type of laser therapy, involving the use of drugs that are absorbed by cancer cells; when exposed to a particular wave length of light, the drugs become active and destroy the tumor cells.

Radiotherapy

  • Radiotherapy is given before, during or after chemotherapy or surgery, and sometimes on its own to control symptoms.[12][13]
  • In patients with localized disease but contraindications to surgery, "proton radiotherapy" may be used with curative intent.

References

  1. ↑ Wang HW, Chu PY, Kuo KT, Yang CH, Chang SY, Hsu WH, Wang LS (2006). "A reappraisal of surgical management for squamous cell carcinoma in the pharyngoesophageal junction". J Surg Oncol. 93 (6): 468–76. doi:10.1002/jso.20472. PMID 16615159.
  2. ↑ 2.0 2.1 Triboulet JP, Mariette C, Chevalier D, Amrouni H (2001). "Surgical management of carcinoma of the hypopharynx and cervical esophagus: analysis of 209 cases". Arch Surg. 136 (10): 1164–70. PMID 11585510.
  3. ↑ 3.0 3.1 Deschamps C, Nichols FC, Cassivi SD; et al. (2005). "Long-term function and quality of life after esophageal resection for cancer and Barrett's". Surgical Clinics of North America. 85 (3): 649–656. PMID 15927658.
  4. ↑ Wu AJ, Goodman KA (2015). "Clinical tools to predict outcomes in patients with esophageal cancer treated with definitive chemoradiation: are we there yet?". J Gastrointest Oncol. 6 (1): 53–9. doi:10.3978/j.issn.2078-6891.2014.099. PMC 4294820. PMID 25642338.
  5. ↑ Lin SH, Wang J, Allen PK, Correa AM, Maru DM, Swisher SG, Hofstetter WL, Liao Z, Ajani JA (2015). "A nomogram that predicts pathologic complete response to neoadjuvant chemoradiation also predicts survival outcomes after definitive chemoradiation for esophageal cancer". J Gastrointest Oncol. 6 (1): 45–52. doi:10.3978/j.issn.2078-6891.2014.054. PMC 4294819. PMID 25642337.
  6. ↑ Miao L, Chen H, Xiang J, Zhang Y (2015). "A high body mass index in esophageal cancer patients is not associated with adverse outcomes following esophagectomy". J. Cancer Res. Clin. Oncol. 141 (5): 941–50. doi:10.1007/s00432-014-1878-x. PMID 25428458.
  7. ↑ Affleck DG, Karwande SV, Bull DA, Haller JR, Stringham JC, Davis RK (2000). "Functional outcome and survival after pharyngolaryngoesophagectomy for cancer". Am. J. Surg. 180 (6): 546–50. PMID 11182415.
  8. ↑ "Esophageal Cancer Treatment".
  9. ↑ Bethge N, Sommer A, Vakil N (1997). "A prospective trial of self-expanding metal stents in the palliation of malignant esophageal strictures near the upper esophageal sphincter". Gastrointest. Endosc. 45 (3): 300–3. PMID 9087839.
  10. ↑ Haddad NG, Fleischer DE (1994). "Endoscopic laser therapy for esophageal cancer". Gastrointest. Endosc. Clin. N. Am. 4 (4): 863–74. PMID 7529119.
  11. ↑ Mellow MH, Pinkas H (1985). "Endoscopic laser therapy for malignancies affecting the esophagus and gastroesophageal junction. Analysis of technical and functional efficacy". Arch. Intern. Med. 145 (8): 1443–6. PMID 4026476.
  12. ↑ Emami B, Lyman J, Brown A, Coia L, Goitein M, Munzenrider JE, Shank B, Solin LJ, Wesson M (1991). "Tolerance of normal tissue to therapeutic irradiation". Int. J. Radiat. Oncol. Biol. Phys. 21 (1): 109–22. PMID 2032882.
  13. ↑ SEAMAN WB, ACKERMAN LV (1957). "The effect of radiation on the esophagus; a clinical and histologic study of the effects produced by the betatron". Radiology. 68 (4): 534–41. doi:10.1148/68.4.534. PMID 13432180.


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