LETrERS

with thyroid or pyridoxine merely a pharmacological without significant alteration of the basic pathophysiology? suspect that all patient populations are heterogeneous that several clinical syndromes will be found. Other

dens, such

as thyroiditis

be present,

may

greater. Clearly, ridoxine

and altered

making

the

magnesium

likelihood

a more systematic with altered thyroid

effect I and disor-

metabolism,

of heterogeneity

even

study of the interaction function is indicated.

of py-

REFERENCES 1. Brayshaw menstrual

ND, Brayshaw DD: Thyroid hypofunction in presyndrome (letter). N EngI J Mcd 1986; 315:1486-

1487 Casper

2.

RF,

prolactin menstrual

Patel-Chnistophcr

responses syndrome.

A,

Powell

A:

to thyrotropin-releasing J Clin Endocrinol

Thyrotropin

and

hormone Metab 1989;

in pre68:608-

612

3. Dakshinamurti hypothalamic 1986;

J: Hypothyroidism of rats. J Endocninol

109:345-349

4. Delitala (TSH)

G, Rovasio and prolactin

primary 1019-1022

P, Lotti

JW,

depressed

G:

(PRL)

Harrison

Suppression

release

J Clin

hypothyroidism.

Stewart

S.

K, Paulose CS, Vnicnd origin in pynidoxinc-deficient

by

Endocninol

W, Quitkin

outpatients.

Biol

of thyrotropin

pynidoxinc

in chronic

Metab

1977;

F, et al: Low

Psychiatry

1984;

45:

B6 levels

TO

THE

EDITOR

and a marked startle response to being unexpectedly touched. The state of dysphoria alternates with, and is ternporarily relieved by, the excitation of planning and executing substance-abusing (food) binge behavior. This provides, until the plan is fully executed, a sense of “high” or excited “rush.” A guilty, down period then follows, and a subsequent, well-learned cyclic pattern of relief (planning and cxecuting a binge) is repeated. This highly reinforcing pattern has been described in relation to combat-related PTSD (4, 5). Dr. Levy and associates reported responses to antidepressant medications, a high frequency of suicide attempts, depressionlike symptoms, and a tendency for depression to increase as bulimic behavior decreases. These findings and the lack of correlation with family history of affective disorder are also compatible with our hypothesis. We cannot yet estimate the frequency with which this cyclic pattern of reinforcement occurs as a subtype of eating disorders. We are certainly impressed that this type of history is commonly associated with binge-purge behavior; it cxplains some of the treatment-resistant quality of these disordens. The combination of trauma, avoidance of intimacy, and dysphonia relieved by recurring and highly reinforcing, powerful, excitatory periods should be addressed. We welcome comment by Dr. Levy and his colleagues and others on their clinical experience in this regard.

in

19:613-616

REFERENCES KENNETH

M.

LIPMAN, Martinez,

M.D. Calif.

1. Levy AB, Dixon KN, Stern SL: How arc depression related? Am J Psychiatry 1989; 146:162-169 2.

Fournier

Experiences Bulimia

Associated

With

Sexual

Trauma

extensive review, Alan B. Levy, M.D., and (1), investigating possible relationships between bulimia and depression, concluded that bulimia is not a vanant of depression. While this conclusion appears reasonable, SIR:

In

their

associates

it provides

no

guidance

for

further

investigation.

Part

of

the

difficulty One

may lie in their focusing on concurrent depression. wishes that the authors had distinguished between bulimia and bulimia associated with anorexia nervosa in their summarization of clinical evidence associating depression with these disorders. The authors quite correctly distinguished the two subsets of eating disorders in reporting the

work tion

of others. in

their

However, own

they

did not continue

conclusions.

It

appears

stress may

be

abuse,

Am

structure

disorder variable,

an

]

outcome

Psychiatry

often

(PTSD). but

The

associated

typically

there

of avoidance

147:3,

with

presence

the

March

of intimate

1990

Relationships

13-31499. R,

Master’s Howells

Between

Disorders:

Selected

University Abstracts

K, Palmer

Childhood

Microfilms International

R,

et

al:

Adverse

Num1987; sexual

experience in childhood and clinical eating disorders: a prclimmary description. J Psychiatr Res 1985; 19:2-3 4. Solursh LP: Combat addiction-PTSD re-explored. Psychiatr J Univ Ottawa 1988; 13:17-20 S. Solursh LP: Combat addiction: overview of implications in symptom maintenance and treatment planning. J Traumatic Stress (in press)

LIONEL P. SOLURSH, M.D., D.PSYCH. ANDREW D. BISSETf, M.D., PH.D. JOSEPH A.A. FOURNIER, R.N., M.S.W. Augusta, Ga.

strongest

posttraumatic

of intrusive is a history

The

and Eating

this distinc-

that

clinical evidence for concurrent depression cited by Dr. Levy and associates lies in studies reporting bulimia associated with anorexia nervosa. Our experience with anorexic patients (who may also have concurrent bulimia) suggests a possible avenue for further exploration. Fournier (2) found that women with histories of childhood sexual trauma had psychological profiles similar to those of anorexic patients. Oppenheimer et al. (3) similarly found that 50 of their 78 patients with eating disorders had had adverse sexual experiences (40 of them in childhood). We also have noted an apparently high incidence of convincing histories of early (usually childhood) sexual trauma. In this group at least, it appears that the outcome is not classical depression but, rather, a typical presentation of the personality

3.

ben ADG 26(2):276 Oppenheimer

JAA:

and bulimia

thoughts of

repeated

relationships,

ECT

as Prophylactic

Treatment

for

Bipolar

Disorder

SIR: In their excellent review of alternatives to lithium for preventive treatment of bipolar disorder (1), Robert F. Pnien, Ph.D., and Alan J. Gelenberg, M.D., omitted mention of the first treatment reported to be effective for this purpose: ECT. In a 1949 article presciently entitled “Prophylactic Electroshock,” Geoghegan and Stevenson (2) reported the results of an open clinical trial that showed no relapses over 3 years in 13 manic-depressive patients who received monthly treatments after a course of ECT, compared with frequent rclapses in 1 1 patients who refused such treatment. Two years later, the results were equally encouraging (3). To my knowledge, no attempt to replicate these results under controlled conditions has been reported. Nonetheless, a 1986 survey of practitioners of ECT (4) found that 59% of the respondents used maintenance ECT (for a median of three patients annually), and I have personally frequently

373

LETTERS

TO THE

observed

the

lected

EDITOR

effectiveness

bipolar

of

patients

who

such

therapy

continue

in carefully

to relapse

Se-

despite

in-

tensive attempts at pharmacological prophylaxis. I know that these observations are well-known to Drs. Pnien and Gelenberg, whose review was, after all, aimed at pharmacological methods of prophylaxis. But despite the often excellent results obtained with such maintenance drug

therapy,

there

continued

remains

residence

a hard

pendent on maintenance agree with Fink (5) that seriously, and of continuation academic and

core of bipolar

outside

of

ECT. “it

hospitals

One

patients seems

can,

whose

wholly

therefore,

de-

heartily

this option effort to assess this form ECT deserves greater

is timely

to

undertake a national therapy. Maintenance clinical attention.”

consider

REFERENCES 1. Pnien RF, Gelenberg treatment of bipolar 2.

848 Geoghegan Psychiatry

AJ: Alternatives to lithium for preventive disorder. Am J Psychiatry 1989; 146:840-

JJ, Stevenson 1949;

GH:

Prophylactic

electroshock.

Am J

105:494-495

3. Stevenson GH, Geoghegan JJ: Prophylactic electroshock: a fiveyear study. Am J Psychiatry 1951; 107:743-748 4. Kramer BA: Maintenance ECT: a survey of practice (1986). Convulsive Therapy 1987; 3:260-268 S. Fink M: Maintenance ECT and affective disorders (editorial). Convulsive Therapy 1987; 3:249-250 RICHARD

ABRAMS,

former group may well display REM sleep patterns that heretofore have not been described in depression. To predict that a particular constellation of REM sleep abnormalities might “mark” PTSD is not to imply that some evidence of REM sleep dysfunction cannot be seen in other psychiatric disorders.

Many pothesis

of Dr. Reynolds’s suggestions for pursuing the hythat aberrant REM sleep mechanisms underlie fit squarely with our own. It is important to extend

PTSD questionnaire and sleep diary studies to other patient groups, so that the question of the specificity of the recurrent, stereotyped anxiety dream can be addressed directly. We agree that awakening studies, in which REM sleep and non-REM sleep mentation can be compared in PTSD subjects, are potentially useful. Long-term polysomnographic investigations over the course of treatment might establish correlations between REM sleep measures and dream intensity. As Dr. Reynolds asserted, the pivotal question is whether the sleep disturbance of PTSD is central to the pathogenesis of this disorder or is an epiphenomenon; experimental strategies using naturalistic and pharmacological probes of the REM sleep system should help to provide an answer. We believe that support for the concept of a core REM sleep dysfunction in PTSD already emerges from the theoretical linkage between REM sleep mechanisms and some of the characteristic waking symptoms of the disorder (1). Thus, investigating the nature of startle and flashback behavior in PTSD, as we have begun to do (6), can provide indirect evidence that ultimately may prove compelling.

M.D.

Chicago,

Ill.

REFERENCES

1. Reynolds Sleep

Disturbance

in Posttraumatic

Stress

SIR: In his editorial (1) accompanying our article “Sleep Disturbance as the Hallmark of Posttraumatic Stress Disonden” (2), Charles F. Reynolds III, M.D., offered a thoughtful commentary on our hypothesis that posttraumatic stress disorder (PTSD) may be fundamentally a disorder of REM sleep mechanisms. Citing Cantwnight’s finding (3) that, among a group of women undergoing divorce, those who were depressed showed a shortened REM sleep latency and a disruption of the normal REM sequence, he appeared to suggest

that a “major Consequently,

mood-disturbing PTSD would

event” can disturb dreaming. not be unique in its association

with the repetitive, stereotyped anxiety dream. However, this reasoning does not fully take account of other observations from the same study. “Anxiety dreams” were no more frequent in the depressed women than in a control group of euthymic married women (4). Furthermore, the dreams of the depressed women had a low “dreamlike quality” and

avoided

the

subject

of divorce

(5).

They

stand

Sleep

disturbance

2.

Ross

RJ,

hallmark 1989;

Ball

WA,

Sullivan

in posttraumatic

KA,

of posttraumatic

stress

(editorial). et al:

stress

Sleep

disturbance

disorder.

disor-

Am J Psychi-

Am

as the

J Psychiatry

146:697-707

3. Cartwnight RD: Rapid eye movement sleep characteristics duning and after mood-disturbing events. Arch Gen Psychiatry 4.

1983; 40:197-201 Trenholme I, Cartwnight

RD,

Greenberg

G:

Dream

dimension

differences during a life change. Psychiatry Rcs 1984; 12:35-45 S. Cantwnight RD, Lloyd S, Knight 5, et al: Broken dreams: a study of the effects of divorce and depression on dream content. Psy6.

chiatry 1984; Ross RJ, Ball

47:251-259 WA, Cohen

reflex

in posttraumatic

Clinical

Neurosciences

ME,

stress

et al: Habituation

disorder.

of the

J Neuropsychiatry

startle

and

(in press)

RICHARD

J. ROSS,

M.D.,

PH.D.

WILL1AM

A. BALL,

M.D.,

PH.D.

KENNETH A. SULLIVAN, PH.D. STANLEY N. CAROFF, M.D. Philadelphia, Pa.

in marked

contrast to the vivid dreams of PTSD, which often recapitulate the trauma. Dr. Reynolds emphasized that the depressed women in Cartwnight’s study, who did not have PTSD, nonetheless had polysomnognaphic evidence of heightened “REM sleep pressure,” which has also been identified in endogenous depression. Thus, if an abbreviated REM sleep latency or an altered REM sequence were to be demonstrated in PTSD, the question of specificity would inevitably be raised. However, while it may not be feasible to control adequately for concurrent depression in PTSD patients (most of whom are on have been depressed), it should be possible to compare the sleep of PTSD subjects and depressed subjects without PTSD. The

374

CF:

den: pathogenetic or cpiphenomcnal? atry 1989; 146:695-696

Disorder

SIR: Some recent observations that I have made on the structure of the manifest dream in troubled patients might shed some light on the problems described by Richard J. Ross, M.D., Ph.D., and associates in their article and by Charles F. Reynolds III, M.D., in his editorial on sleep disturbance in posttraumatic stress disorder. I find that in the dreams of patients with depression, schizophrenia, or bordenline personality disorder, one can often identify alternation of two tendencies-one constructive, hopeful, and associated with good feeling, and the other destructive, discounaging, and dysphonic. These two tendencies usually alternate in the dreams of these patients in a full dream se-

Am

J

Psychiatry

1 47:3,

March

1990

ECT as prophylactic treatment for bipolar disorder.

LETrERS with thyroid or pyridoxine merely a pharmacological without significant alteration of the basic pathophysiology? suspect that all patient pop...
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