CLINICAL AND RESEARCH REPORTS Successful Treatment Subcortical Methyiphenidate of Apathy After Infarcts CASE REPORT A 38-year-old of Illinois right-handed Hospital weakness. Medical and childhood poliomyelitis Ph.D. A patient with prominent apathy secondary to multiple subcortical infarcts was treated successfully with methyiphenidate. SPECT and reaction time testing showed selective improvement of frontal system function, consistent with a recent model of frontal-subcortical circuits and behavior. (The Journal Neurosciences Apathy is in patients regions a major ing. of Neuropsychiatry 1995; 7:502-504) a prominent with lesions projecting problem Dopamine apathy neurobehavioral of frontal cortex to frontal cortex,1 in rehabilitation and agorusts, in including Clinical complication or subcortical and it presents social bromocriptine function- have been employed successfully patients with anterior communicating methylphenidate, treat artery and aneurysm, Wilson’s disease, and HIV-related mentia.7 We report a case of successful methylphenidate treatment of apathy secondary to cocaine-related subcortical strokes. We behavioral observations, documented and to de- improvement SPECT. Results indicate reaction time (RT) testing, that clinical improvement was associated with selective improvement residual University and left facial for cocaine abuse paraplegia. CT internal horn testing was positive for psychomotor slowing, on memory testing, and impaired planning and judgment. EEC showed mild slow waves in the left frontal and temporal areas. MRI of the brain was positive for multiple subcortical infarcts involving the periventricular white poor free recall matter bilaterally; right internal capsule, basal ganglia, and cerebellum; and left thalamus. The patient was treated with bromocriptine 20 mg qd. Ward staff reported that he showed improved sodal behavior and increased interest in activities. However, his behavior deteriorated after discharge, with reemergence of apathy, incontinence, and neglect of personal hygiene. He was readmitted to the neuropsychiatry unit 3 months later. Urine toxicology screens for street drugs were negative, and serum prolactin levels with were negligible, corroborating bromocriptine treatment and After a 5-day washout period, assessments were performed and of compliance his report abstinence baseline the from SPECT cocaine and RT patient was started on After 7 days of methyl- a trial of methylphenidate 5 mg bid. phenidate therapy, the patient was reassessed. Ward staff reported that the patient showed a marked increase in interest and improved social behavior following initiation of methylphenidate therapy. His personal hygiene improved (he bathed himself with minimal assistance and ceased urine spifiage), and he increased his participation in unit activities. Clinical improvement has been maintained at follow-up 9 months after discharge. studies were of frontal- function. Received April 27, 1994; revised November 8, 1994; accepted December 7, 1994. From the Departments of Pharmacy Practice, Psychiatry, and Radiology, University of Illinois-Chicago, and the Veterans Affairs Medical Center-West Side, Chicago. Address correspondence to Dr. Martin, Department of Psychiatry (M/C 913), University of illinois, 912 S. Wood St., Chicago, IL 60612. Copyright © 1995 American Psychiatric Press, Inc. 502 with to the psychological use. with and subcortical presented capsule infarction with comof the right lateral ventricle. The patient was discharged with a diagnosis of cocaine-related stroke. Five months later he was readmitted to a rehabilitation unit. His family reported that he was “different in thinking,” had stopped walking with crutches, and refused to leave the house. He became doubly incontinent and neglected his personal hygiene. He laughed inappropriately, manipulated his catheter to spill urine, and showed poor safety judgment. On transfer to the neuropsychiatric unit, he presented as uncooperative and indifferent but without delusions, hallucinations, or depressive complaints. Formal neuroscan revealed a right pression of the frontal Mark D. Watanabe, Pharm.D., Eileen M. Martin, Ph.D. Ovidio A. DeLeon, M.D. Moises Gaviria, M.D. Dan G. Pavel, M.D. Donald W. Trepashko, M.D. man with right-sided headache history was remarkable METHODS SPECT detector rotating performed gamma on camera tems, Columbia, MD) with Amersham, Arlington Heights, VOLUME a Sopha (Sopha [Tc]HMPAO IL) as the 7 #{149} NUMBER DSX single- Medical Sys- tracer. 4 (Ceretec”, Standard #{149} FALL 1995 CLINICAL cal lesions.8’9 The task consisted of 192 voice-activated trials.10 On each trial, a colored word patient Stimuli named were and error rates decreased slightly, 5% to 3%. Improvement was most evident in the incongruent condition, which is considered most sensitive to frontal system dysfunction8’9 (Figure 2). stimulus gruent We color), for speed. For each pressed a key of color. pressed was task, changes ignored color the word. name and in motor single colored squares In the 32-trial simple condition, as soon as he detected In the 64-trial one and key the (animal names in color), or inconname and stimulus color). simple and choice RT tasks11 as nonspecific monitor. less neutral (different color also administered controls the the stimulus color and either congruent (same RT appeared, if the choice the or on the patient regard- studies nuclear were blind were observed date more study severe FIGURE 1. JOURNAL (Figure reviewed (D.G.P., All rCBF after conditions all Stroop methyiphenidate improved treatfollowing from DISCUSSION report presents a patient with apathy secondary to multiple subcortical infarcts who had symptomatic resolution with methyiphenidate therapy. His improvement This frontal 1) were medicine physicians to details of the case. for methylphenidate, was if it RESULTS SPECT in for each RT condition. There RTs (270 vs. 282 ms) and RTs (441 vs. 410 ms) another and improvement in simple RTs red was computed change ment. the patient square were minimal choice condition, green. by two Medians marked bilaterally. mental appeared square, perfusion showed REPORTS stration, frontal was SPECT RESEARCH sagittal, and transaxial images were obtained with the subject at rest, with eyes closed and ears unocciuded. The patient was administered three computerized RT tasks. We selected the Stroop task because of its association with activation of frontal and cingulate cortex on PET scanning and susceptibility to disruption by frontal corticoronal, the AND accompanied an increase in blood flow to the and selective improvement on a reaction time version of the Stroop task. The Stroop interference effect is cognitively complex and is associated with activation of multiple cerebral regions; however, the increased activity is most prominent in frontal and cingulate cortex.8 Thus, SPECT and RT results suggest independently that the D.W.T.) who abnormalities with improvement in frontal regions. The pre-methylphenishowed bilateral frontal hypoperfusion, on the left. After methylphenidate admini- by cortex patient’s These posed results by of apathy involving clinical improvement in frontal-subcortical are consistent with Cummings4 that with lesions of anterior cingulate, was associated function. a recent model pro- associates the development a frontal-subcortical circuit basal ganglia, thalamus, images obtained before and after treatment with methylphenidate. The pretreatment study (upper series) shows decreased perfusion of the lateral aspect of both frontal lobes, extending on the right to the superior aspect and on the left to the orbitofrontal area. The posttreatment study (lower series) shows improved relative perfusion of both frontal lobes. SPECT OF NEUROPSYCHIATRY 503 CLINICAL FIGURE AND 2. Median (Pre-Tx) RESEARCH REPORTS reaction times on the Sfroop and after (Post-Tx) treatment. task before or postsynaptic also compatible synaptic ings are associated 1600 with thus, that disordered However, we cannot rule activity as an additional improvement. 1400 Our patient’s dopamine agonist 1200 - 1 ioo: behavior improved bromocriptine, ployed to development treat apathy of tolerance fluenced his by proposals with been mutism.54’13 the emHis (possibly in- initially which has and akinetic to bromocriptine history of cocaine abuse, in central dopaminergic which causes pathways14) dysregulation prompted the substitution of methyiphenidate. The literature on attention-deficit/hyperactivity disorder suggests that tolerance to chronic methyiphenidate can be minimized with appropriate dosage adjustments.15 The patient has been abstinent from cocaine since his stroke and continues to maintain a therapeutic benefit of 600 400 methylphenidate 200 0 Congruent Neutral Incongruent cortex. Methyiphenidate neurotransmission, enhances central either through pre- at 15mg/day, suggesting that tolerance development may not pose a problem in medication management. The results of this promising single case await replication in a group design with employment of standardized measures and frontal dopaminergic our findapathy is dopaminergic activity.1’4 out enhanced noradrenergic influence on our patient’s mechanisms;12 with of apathy, such as the Apathy Evaluation Scale developed by Mann.1 In addition, our results suggest that SPECT scanning and reaction time tasks have much potential as outcome measures in clinical trials of psychostimulants for neurologically based apathy. References 1. Mann RS: Apathy: a neuropsychiatric syndrome. J Neuropsychiaby Clin Neurosci 1991; 3:243-254 2. Mann RS, Fininciogullari S, Biedrzycki RC: Group differences in the relationship between apathy and depression. J Nerv Ment Dis 1994; 182:235-239 3. Starkstein SE, Fedoroff JP, Price TR, et al: Apathy following cerebrovascular lesions. Stroke 1993; 24:1625-1631 4. Cummings JL: Frontal-subcortical circuits and human behavior. Arch Neurol 1993; 50:873-880 5. Parks RW, Crockett DJ, Manji HK, et al: Assessment of bromocriptine intervention for the treatment of frontal lobe syndrome: a case study (letter). J Neuropsychiatry Clin Neurosci 1992; 4:109-111 6. Barrett K: Treating organic abulia with bromocniptine and lisuride: four studies. J Neurol Neurosurg Psychiatry 1991; 54:718721 7. Holmes VF, Fernandez F, Levy JK: Psychostimulant response in AIDS-related complex patients. J Clin Psychiatry 1989; 50:5.-S 8. Pardo JV, Pardo PJ, Janer KW, et al: The anterior cingulate cortex mediates processing selection in the Stroop attentional conflict 504 paradigm. Proc Nail Acad So USA 1990; 87:256-259 9. Perret E: The left frontal lobe of man and the suppression of habitual responses in verbal categorical behavior. Neuropsychologia 1974; 12:323-330 10. Martin EM, Robertson LC, Edelstein HE, et al: Performance of patients with early HIV-1 infection on the Stroop task. J Clin Exp Neuropsychol 1992; 14:857-868 11. Martin EM, Sorensen DJ, Edelstein HE, et al: Decision-making speed in HIV infection. AIDS 1992; 6:109-113 12. Costall B, Naylor RJ: The involvement of dopammergic systems with the phenidate. stereotyped J Pharm behaviour Pharmacol patterns 13. Ross ED, Stewart RM: Akinetic age: successful treatment with a dopamine 1981; 31:1435-1439 14. Post RM, Kopanda RT: Cocaine, kindling, Psychiatiy 15. 1976; induced by methyl- 1974; 26:30-33 mutism from hypothalamic agonist. dam- Neurology and psychosis. Am J 133:627-634 RI’: Absence Safter DJ, Allen of tolerance to the behavioral effects of methylphenidate in hyperactive and inattentive children. J Pediatn 1989; 115:1003-1008 VOLUME 7 #{149} NUMBER 4 #{149} FALL 1995