Can depressed cancer patients with a borderline thiamine concentration develop deficiency within a short time period?

Author:

Uchida NozomuORCID,Ishida MayumiORCID,Yoshioka Akira,Sato Izumi,Ito Hiroshi,Onizawa Nobuyuki,Sato Ryota,Mizunuma Naoki,Onishi HidekiORCID

Abstract

AbstractBackgroundDespite increasing reports of thiamine deficiency (TD) among cancer patients, there remain some patients with borderline thiamine concentrations (BTC). However, it is unclear whether such patients subsequently develop TD.MethodsHere, we report cases of cancer patients progressing to TD within a short time period after presentation with BTC (24–28 ng/ml).ResultsCase 1A 49-year-old female with lung cancer. During treatment for depression, the patient showed a decreased appetite, and a blood sample revealed BTC (25 ng/ml). Fourteen days later, she reported a continued loss of appetite, and despite the absence of the 3 classical signs of Wernicke encephalopathy (WE), additional testing showed a thiamine level of 23 ng/ml, leading to a diagnosis of TD.Case 2A 65-year-old female developed depression during chemotherapy for angiosarcoma. Her blood sample revealed BTC (25 ng/ml). Seven days later, despite the absence of the classical signs of WE, a further testing revealed a thiamine level of 20 ng/ml.Case 3A 41-year-old female developed depression during chemotherapy for ovarian cancer. No loss of appetite was observed, but a blood sample revealed BTC (25 ng/ml). Seven days later, despite the absence of the classical signs of WE or decreased appetite, further testing revealed a thiamine level of 19 ng/ml.Significance of resultsDepressed cancer patients with BTC may develop TD within a short time frame. To prevent TD, health-care professionals should maintain an awareness of its potential and the need for regular testing of thiamine level or prophylactic replacement therapy.

Publisher

Cambridge University Press (CUP)

Subject

Psychiatry and Mental health,Clinical Psychology,General Medicine,General Nursing

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