Tumor lysis syndrome history and symptoms: Difference between revisions

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==History and Symptoms==
==History and Symptoms==
[[Hyperkalemia]]. [[Potassium]] is mainly an [[intracellular]] [[ion]]. High turnover of tumor cells leads to spill of potassium into the blood. Symptoms usually do not manifest until levels are high (> 7mmol/dL) [normal 3.5-5.0 mmol/dL] and they include
* severe muscle weakness or paralysis
* [[heart|cardiac]] conduction abnormalities (can be fatal)
'''[[Hyperphosphatemia]]'''. Like potassium, [[phosphate]]s are also predominantly intracellular. Hyperphosphatemia causes acute [[kidney|renal]] failure in tumor lysis syndrome, because of deposition of [[calcium phosphate]] crystals in the renal [[parenchyma]].
'''[[Hypocalcemia]]'''. Because of the hyperphosphatemia, [[calcium]] is precipitated to form calcium phosphate, leading to hypocalcemia. Symptoms of hypocalcemia include (but are not limited to):
Symptoms of tumor lysis syndrome include:<ref name="cancer.ca">Canadian Cancer Society.2015.http://www.cancer.ca/en/cancer-information/diagnosis-and-treatment/managing-side-effects/tumour-lysis-syndrome/?region=ab#symptoms</ref>
Symptoms of tumor lysis syndrome include:<ref name="cancer.ca">Canadian Cancer Society.2015.http://www.cancer.ca/en/cancer-information/diagnosis-and-treatment/managing-side-effects/tumour-lysis-syndrome/?region=ab#symptoms</ref>


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:*[[Anuria]]
:*[[Anuria]]
:*[[Somnolence]]
:*[[Somnolence]]
* [[Seizure]]
* Mental retardation / [[dementia]]
* Parkinsonian (extrapyramidal) movement disorders
* [[Papilledema]]
* Emotional instability / [[agitation]] / [[anxiety]]
*[[Delirium]]
*[[Hallucinations]]
*[[Myopathy]]
*[[Nausea]]
*[[Vomiting]]
*[[Diarrhea]]
*[[Oliguria]]
'''[[Hyperuricemia]]'''. [[Uric acid]] is a breakdown product of [[DNA]], converted by [[xanthine oxidase]] from [[xanthine]] and [[hypoxanthine]], which are in turn [[purine]] breakdown products. Uric acid is more toxic to tissues than (hypo)xanthine. Uric acid [[nephropathy]] has been a dominant cause of acute renal failure but with the advent of [[allopurinol]] and uricase treatment, hyperphosphatemia has replaced this as the main cause of acute renal failure. Oddly, [[gout]] is not a feature of tumor lysis syndrome; the high uric acid levels that cause gout probably need to be present for an extended period of time before the putative crystals can develop.


==References==
==References==

Revision as of 18:46, 23 September 2015

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

Overview

Symptoms of tumor lysis syndrome include nausea, vomiting, diarrhea, oliguria, confusion, delirium, and seizure.

History and Symptoms

Symptoms of tumor lysis syndrome include:[1]


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