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BRIEF COMMUNICATIONS:
Jau-Shin Lou, Alexa Reeves, Theodore Benice, and Gary Sexton
Fatigue and depression are associated with poor quality of life in ALS
Neurology 2003; 60: 122-123
[Abstract][Full text][PDF]
We read with interest the paper by Lou et al. [1]
discussing fatigue in ALS. Fatigue in various types of
neurological diseases is well known.
Friedman originally reported fatigue in Parkinson's disease
and defined central fatigue to be distinguished physical
fatigue. [2] We also studied fatigue in PD and raised the
possible connection to frontal lobe dysfunction. [3] ALS, as we reported before [4], can be divided into some groups
regarding frontal lobe dysfunction.
We investigated the relationship between fatigue in ALS and frontal lobe dysfunction. To test this hypothesis, we
compared severity of fatigue among three ALS patients
with and without frontal lobe dysfunction. Consequently, we
found ALS patients with frontal lobe dysfunction
tended to have greater fatigue compared to ALS patients
without frontal lobe dysfunction.
Further investigation
with large number of ALS patients may be needed. However,
we believe that fatigue in ALS patients have some degree of
fontal lobe dysfunction.
References
1. Lou J-S, Reeves A, Benice T, Sexton G. Fatigue and
depression are associated with poor quality of life in ALS.
Neurology 2003;60:122-123.
2. Friedman J, Friedman H. Fatigue in ParkinsonÕs disease.
Neurology 1993; 43: 2016-2018.
3. Abe K, Takanashi M, Yanagihara T. Fatigue in patients
with Parkinson's disease. Behavioural Neurology 12(3);103-
106,2000.
4. Abe K, Fujimura H, Toyooka K, T Hazama, Hirono N,
Yorifuji S, Yanagihara T. Single photon emission
tomographic investigation of patients with motor neuron
disease. Neurology 43(8): 1569-1573, 1993.
Reply to Abe
18 November 2003
Jau-Shin Lou, Oregon Health & Science University Department of Neurology, 3181 SW Sam Jackson's Park Rd, CR120, Portland, OR 97239
We thank Dr. Abe for his interest in our article on fatigue and depression in
ALS. [1] They correctly pointed out that fatigue in various neurological
diseases has been examined. Our group has also used the Multidimentional
Fatigue Inventory (MFI) to examine fatigue in PD. [2] We have
demonstrated that fatigue in ALS patients is different from the fatigue
reported in PD patients. PD patients, but not ALS patients, reported more
mental fatigue than normal controls. We suggested that PD patients might
have more cognitive dysfunctions, which could cause mental fatigue.
We are very interested in Abe's hypothesis that fatigue in ALS may be
related to the frontal lobe dysfunction. A recent study showed that half
of the ALS patients have frontal executive deficit. [3] Abe's preliminary
data in three ALS patients suggest that ALS patients with frontal lobe
dysfunction have more fatigue than those without frontal lobe dysfunction.
However, Abe did not mention if ALS patients with frontal lobe dysfunction
reported more physical fatigue or mental fatigue. It will be interesting
to study if ALS patients with frontal lobe dysfunction report more
physical fatigue or mental fatigue compared with ALS patients without
frontal lobe dysfunction.
References.
1. Lou J-S, Reeves A, Benice T, Sexton G. Fatigue and depression
are associated with poor quality of life in ALS. Neurology 2003;60:122-
123.
2. Lou JS, Kearns G, Oken B, Sexton G, and Nutt J. Exacerbated physical
fatigue and mental fatigue in Parkinson’s disease. Movement Disorders,
2001,16:190-196.
3. Loemen-Hoerth C, Murphy J, Langmore S, Kramer JH, Olney RK and Miller
B. Are amyotrophic lateral sclerosis patients congnitively normal?
Neurology 2003;60:1094-1097.
Reply to Letter to the Editor
9 April 2003
Jau-Shin Lou Oregon Health & Science University Portland OR, Theodore Benice
We appreciate Iasaki et al. interest in our article on depression and
fatigue in ALS patients. [1] We agree that depression may affect the
psychological status and survival. [2] Our study was cross-sectional and
did not examine the correlation between the Scores in MFI and survival.
We have reported that the disease severity as measured by ALSFR did not
correlate with the scores in MFI. Iasake et al. do not agree with our
statement in the discussion stating that QOL initially worsens and
improves subsequently with time because patients adapt and regain hope for
their lives. They stated that base on their experience; "mentality well-
being ALS patients" keep high QOL, which is not related to clinical
stages. A longitudinal study to compare how QOL changes as ALS
progresses is needed to address this issue.
References:
1. Lou J-S, Reeves A, Bvenice T, Sexton G. Fatigue and depression are
associated with poor quality of life in ALS. Neurology 2003;60:122-123.
2. McDonald ER,Wiendenfeld SA, Hillel A, et al. Survival in
amyotrophic lateral sclerosis. The role of psychological factors. Arch
Neurol 1994;51:17-23
Fatigue and depression are associated with poor quality of life in ALS
9 April 2003
Yasuo Iwasaki Toho University Ohashi Hospital Tokyo Japan, Hiroaki Iguchi, Yasumitsu Ichikawa, Osamu Igarashi, Joe Aoyagi, and Shingo Konno
We read with interest the report by Lou et al. showing fatigue state
in ALS. [1] The authors reported ALS patients scored high overall on the
multidimensional fatigue inventory (MFI). In addition, generalized and
physical figures scored higher on ALS than controls. In their study, forty
-four percent of ALS patients had depression. In our experience, about a
half of ALS cases exhibited depression. Depressive state and psychological
state may influence the survival span in ALS, and psychological well-being
ALS patients prolong the survival. [2] It is interesting to know whether
there are any differences in the survival span between higher and lower
scores of MFI in ALS patients. ALS is characterized clinically by upper
and lower motor neuron dysfunction, and bulbar involvement, and is there
any correlation between clinical dysfunction and scores of MFI. In our
experience in limited numbers of ALS cases, depressive state exhibited
remarkably in cases with upper motor neuron involvement. The authors state
the quality of life (QOL) initially worsens with the diagnosis and
improves subsequently with time because patients adapt and regain hope for
their lives. However we can not agree with these statements. Our
experience concerning ALS cares, mentality well being ALS patients keeps
high QOL with remarkable disables state, which is not related to clinical
stage. In the view of QOL, there is a great discrepancy between patients
and their caregivers. Improving the QOL for caregivers is crucial point.
We agree their comment that amantadine is effective in reducing fatigue in
multiple sclerosis and being tested in ALS. [3] Amantadine is a NMDA
blocker and NMDA, an excitatory amino acid, may involve the pathological
mechanism of ALS. In this view amantadine may be effective in mental
fatigue and retard the disease process in ALS.
References:
1. Lou J-S, Reeves A, Benice T, Sexton G. Fatigue and depression are
associated with poor quality of life in ALS. Neurology 2003;60:122-123.
2. McDonald ER, Wiendenfeld SA, Hillel A, et al. Survival in
amyotrophic lateral sclerosis. The role of psychological factors. Arch
Neurol 1994;51:17-23
3. Canadian MS research Group. A randomized trial of amantadine in
fatigue associated with multiple sclerosis. Can J Neurol Sci 1987;272-278.