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{{Pheochromocytoma}}
{{Pheochromocytoma}}
{{CMG}}; {{AE}} {{AAM}}
{{CMG}}; {{AE}} {{AAM}} {{MAD}}


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==Overview==
Surgery is the mainstay of treatment for pheochromocytoma. [[Adrenalectomy]], [[laparoscopic]] transabdomina<nowiki/>l and [[retroperitoneal]] approaches have been used successfully for non-[[metastatic]] [[abdominal]] pheochromocytomas.


==Overview==
==Indications==
Surgery is the mainstay of treatment for pheochromocytoma.
 
*The mainstay of treatment for [[pheochromocytoma]] is surgery. Surgical [[resection]] is usually done for patients with either:
** [[Benign]] localized [[tumor]]
** Unilateral pheochromocytoma- Unilateral [[adrenalectomy]]
** Bilateral pheochromocytomas- cortical-sparing [[adrenalectomy]].<ref name="pmid8957496">{{cite journal| author=Lee JE, Curley SA, Gagel RF, Evans DB, Hickey RC| title=Cortical-sparing adrenalectomy for patients with bilateral pheochromocytoma. | journal=Surgery | year= 1996 | volume= 120 | issue= 6 | pages= 1064-70; discussion 1070-1 | pmid=8957496 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8957496  }}</ref>


==Surgery==
==Surgery==
*Surgical [[resection]] of pheochromocytoma is the treatment of choice for [[benign]] localized tumor.
* Surgery is the mainstay of treatment for [[pheochromocytoma]].
*Patients with unilateral pheochromocytoma should undergo unilateral adrenalectomy, patients with bilateral pheochromocytomas or who develop pheochromocytoma in their remaining adrenal gland should undergo cortical-sparing adrenalectomy.<ref name="pmid8957496">{{cite journal| author=Lee JE, Curley SA, Gagel RF, Evans DB, Hickey RC| title=Cortical-sparing adrenalectomy for patients with bilateral pheochromocytoma. | journal=Surgery | year= 1996 | volume= 120 | issue= 6 | pages= 1064-70; discussion 1070-1 | pmid=8957496 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8957496 }}</ref> It may also be nescessary to perform a complete surgical [[resection]] of the affected adrenal gland.  
=== Adrenalectomy ===
* Two approaches have been used successfully for non-[[Metastasis|metastatic]] [[abdominal]] pheochromocytomas:
** [[Laparoscopic surgery|Laparoscopic transabdominal]]<nowiki/>
** [[Retroperitoneal]]<ref name="pmid21494137">{{cite journal| author=Nehs MA, Ruan DT| title=Minimally invasive adrenal surgery: an update. | journal=Curr Opin Endocrinol Diabetes Obes | year= 2011 | volume= 18 | issue= 3 | pages= 193-7 | pmid=21494137 | doi=10.1097/MED.0b013e32834693bf | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=21494137  }}</ref>
*There are less complications associated with [[laparoscopic surgery]] than with [[open surgery]].
*Major intraoperative complications include:
** Intraoperative [[tumor]] capsule rupture
** [[Hypertensive crisis]]
** [[Myocardial infarctions]]
** [[Stroke|Cerebrovascular hemorrhages]]
** Hemodynamic instability after [[tumor]] resection.
** [[Hypoglycemia]] <ref name="pmid25188716">{{cite journal| author=Rafat C, Zinzindohoue F, Hernigou A, Hignette C, Favier J, Tenenbaum F et al.| title=Peritoneal implantation of pheochromocytoma following tumor capsule rupture during surgery. | journal=J Clin Endocrinol Metab | year= 2014 | volume= 99 | issue= 12 | pages= E2681-5 | pmid=25188716 | doi=10.1210/jc.2014-1975 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25188716 }}</ref>  
**Severe [[hypotension]] <ref name="pmid14734011">{{cite journal| author=Flávio Rocha M, Faramarzi-Roques R, Tauzin-Fin P, Vallee V, Leitao de Vasconcelos PR, Ballanger P| title=Laparoscopic surgery for pheochromocytoma. | journal=Eur Urol | year= 2004 | volume= 45 | issue= 2 | pages= 226-32 | pmid=14734011 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14734011  }}</ref>


=== '''Adrenalictomy:''' ===
==Contraindications==
*[[Laparoscopic surgery|Laparoscopic transabdomina]]<nowiki/>l and retroperitoneal approaches have been used successfully for non-metastatic abdominal pheochromocytmas.<ref name="pmid21494137">{{cite journal| author=Nehs MA, Ruan DT| title=Minimally invasive adrenal surgery: an update. | journal=Curr Opin Endocrinol Diabetes Obes | year= 2011 | volume= 18 | issue= 3 | pages= 193-7 | pmid=21494137 | doi=10.1097/MED.0b013e32834693bf | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=21494137  }}</ref>
Surgery is the mainstay of treatment for pheochromocytoma, even if it is asymptomatic.  
*Complications are less in laparoscopic than open surgery. Catecholamine secretion falls to normal level within a week.
*Major intraoperative complications include: intraoperative tumor capsule rupture, hypertensive crisis, myocardial infarctions, or cerebrovascular haemorrhages.  Hyperdynamic instability after tumor resection is poosible. Hypoglycemia can occur after tumour resection due to unopposed insulin effect after decline of catecholamines levels.<ref name="pmid25188716">{{cite journal| author=Rafat C, Zinzindohoue F, Hernigou A, Hignette C, Favier J, Tenenbaum F et al.| title=Peritoneal implantation of pheochromocytoma following tumor capsule rupture during surgery. | journal=J Clin Endocrinol Metab | year= 2014 | volume= 99 | issue= 12 | pages= E2681-5 | pmid=25188716 | doi=10.1210/jc.2014-1975 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25188716  }}</ref>
*Severe [[hypotension]] can occur after removal of the gland due to decreased catecholamines level in blood and [[downregulation]] of [[adrenergic receptors]]. It can be controlled by [[vasopressors]] induction.<ref name="pmid14734011">{{cite journal| author=Flávio Rocha M, Faramarzi-Roques R, Tauzin-Fin P, Vallee V, Leitao de Vasconcelos PR, Ballanger P| title=Laparoscopic surgery for pheochromocytoma. | journal=Eur Urol | year= 2004 | volume= 45 | issue= 2 | pages= 226-32 | pmid=14734011 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14734011  }}</ref> 
*Risk factors for complications during surgery: high plasma NE concentration, larger tumor size, postural hypotension after α-blockade, and a MAP above 100 mm Hg. 
*Patient should receive glucocorticoid stress coverage in bilateal adrenalectomy.


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
[[Category:Endocrinology]]
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Latest revision as of 00:08, 29 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2] Mohammed Abdelwahed M.D[3]

Overview

Surgery is the mainstay of treatment for pheochromocytoma. Adrenalectomy, laparoscopic transabdominal and retroperitoneal approaches have been used successfully for non-metastatic abdominal pheochromocytomas.

Indications

Surgery

Adrenalectomy

Contraindications

Surgery is the mainstay of treatment for pheochromocytoma, even if it is asymptomatic.

References

  1. Lee JE, Curley SA, Gagel RF, Evans DB, Hickey RC (1996). "Cortical-sparing adrenalectomy for patients with bilateral pheochromocytoma". Surgery. 120 (6): 1064–70, discussion 1070-1. PMID 8957496.
  2. Nehs MA, Ruan DT (2011). "Minimally invasive adrenal surgery: an update". Curr Opin Endocrinol Diabetes Obes. 18 (3): 193–7. doi:10.1097/MED.0b013e32834693bf. PMID 21494137.
  3. Rafat C, Zinzindohoue F, Hernigou A, Hignette C, Favier J, Tenenbaum F; et al. (2014). "Peritoneal implantation of pheochromocytoma following tumor capsule rupture during surgery". J Clin Endocrinol Metab. 99 (12): E2681–5. doi:10.1210/jc.2014-1975. PMID 25188716.
  4. Flávio Rocha M, Faramarzi-Roques R, Tauzin-Fin P, Vallee V, Leitao de Vasconcelos PR, Ballanger P (2004). "Laparoscopic surgery for pheochromocytoma". Eur Urol. 45 (2): 226–32. PMID 14734011.