Pheochromocytoma Crisis
Report:
Sinus rhythm 54/min
Short PR interval 0.10â
Global T wave inversion
Prolonged QT interval 0.56â
Qtc for 54/min = 0.47â
Comment:
The striking T wave inversion, like that caused by its âcerebralâ counterpart, is caused by a catecholamine surge. The presentation with profound hypotension is less common than a hypertensive crisis, but is well known.
It would be tempting to ascribe the short PR interval to catecholamine effect on the AV node, but this would be unexpected in the absence of tachycardia. Further, it persisted a month later, despite propranolol/phenoxybenzamine therapy (189a below). The patient probably had an unrelated Lown-Ganong-Levine conduction.
A left adrenal, predominantly adrenaline-secreting tumour was removed a month later; by then the ECG had substantially normalised.
198a.
190. 54 year old lady who collapsed at home and was admitted, very drowsy but rousable, to CCU
If you have any suggestions for or feedback on this report, please let us know.
Hi, can we chat about some terms and conditions?
The library and its records are licensed under the Creative Commons Attribution 4.0 International license.
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
By clicking agree below, you are agreeing to adhere to CC BY 4.0.