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Revista de Neurologia Aug 2020Aggressiveness is part of the behavioural manifestations associated with some mental disorders; it is a symptom that is difficult to manage and is often resistant to...
INTRODUCTION
Aggressiveness is part of the behavioural manifestations associated with some mental disorders; it is a symptom that is difficult to manage and is often resistant to pharmacological measures. Surgery for behavioural disorders emerges as a therapeutic alternative. This procedure consists in performing interventions on different structures of the limbic system in order to correct the alteration of the circuit involved in producing the symptoms.
AIM
To describe the clinical outcomes of a posterior hypothalamotomy with gamma knife to control aggressiveness in 20 patients resistant to treatment, who underwent surgery at the Imbanaco Medical Centre between 2013 and 2018.
PATIENTS AND METHODS
The severity of the aggressiveness was quantified using the Overt Aggression Scale (OAS) and the Clinical Global Impression Scale (CGI-SI), and its functional impact is evaluated using the Global Assessment of Functioning scale (GAF).
RESULTS
Control over aggressiveness was observed in all patients treated by posterior hypothalamotomy with gamma knife, evidenced by a decrease in the scores on the OAS and CGI-SI and an improvement in the GAF.
CONCLUSIONS
Posterior hypothalamotomy gives rise to few complications, is a safe procedure and offers good results, suggesting that it could be a good alternative treatment in cases of treatment-resistant aggressiveness where it seems that all the possible pharmacological and therapeutic measures have failed.
Topics: Adolescent; Adult; Aggression; Autistic Disorder; Child; Combined Modality Therapy; Drug Resistance; Female; Humans; Hyperphagia; Hypothalamus, Posterior; Intellectual Disability; Magnetic Resonance Imaging; Male; Neuroimaging; Patient Care Team; Psychosurgery; Psychotropic Drugs; Radiosurgery; Severity of Illness Index; Sleep Initiation and Maintenance Disorders; Treatment Outcome; Young Adult
PubMed: 32672347
DOI: 10.33588/rn.7103.2019509 -
Stereotactic and Functional Neurosurgery 2020The paper invites to reappraise the role of psychosurgery for and within the development of functional stereotactic neurosurgery. It highlights the significant and...
The paper invites to reappraise the role of psychosurgery for and within the development of functional stereotactic neurosurgery. It highlights the significant and long-lived role of stereotactic neurosurgery in the treatment of severe and chronic mental disorders. Stereotactic neurosurgery developed out of psychosurgery. It was leucotomy for psychiatric disorders and chronic pain that paved the way for stereotactic dorsomedial thalamotomy in these indications and subsequently for stereotactic surgery in epilepsy and movement disorders. Through the 1960s stereotactic psychosurgery continued to progress in silence. Due to the increased applications of stereotactic surgery in psychiatric indications, psychosurgery's renaissance was proclaimed in the early 1970s. At the same time, however, a public fearing mind control started to discredit all functional neurosurgery for mental disorders, including stereotactic procedures. In writing its own history, stereotactic neurosurgery's identity as a neuropsychiatric discipline became subsequently increasingly redefined as principally a sort of "surgical neurology," cut off from its psychiatric origin.
Topics: Chronic Pain; Epilepsy; History, 20th Century; Humans; Mental Disorders; Movement Disorders; Neurosurgery; Psychosurgery; Stereotaxic Techniques
PubMed: 32599586
DOI: 10.1159/000508167 -
Journal of Clinical Medicine Jun 2020The main objective of this study was to assess the safety and efficacy of deep brain stimulation (DBS) in patients with severe anorexia nervosa (AN).
A Randomized Trial of Deep Brain Stimulation to the Subcallosal Cingulate and Nucleus Accumbens in Patients with Treatment-Refractory, Chronic, and Severe Anorexia Nervosa: Initial Results at 6 Months of Follow Up.
BACKGROUND
The main objective of this study was to assess the safety and efficacy of deep brain stimulation (DBS) in patients with severe anorexia nervosa (AN).
METHODS
Eight participants received active DBS to the subcallosal cingulate (SCC) or nucleus accumbens (NAcc) depending on comorbidities (affective or anxiety disorders, respectively) and type of AN. The primary outcome measure was body mass index (BMI).
RESULTS
Overall, we found no significant difference ( = 0.84) between mean preoperative and postoperative (month 6) BMI. A BMI reference value (BMI-RV) was calculated. In patients that received preoperative inpatient care to raise the BMI, the BMI-RV was defined as the mean BMI value in the 12 months prior to surgery. In patients that did not require inpatient care, the BMI-RV was defined as the mean BMI in the 3-month period before surgery. This value was compared to the postoperative BMI (month 6), revealing a significant increase ( = 0.02). After 6 months of DBS, five participants showed an increase of ≥10% in the BMI-RV. Quality of life was improved ( = 0.03). Three cases presented cutaneous complications.
CONCLUSION
DBS may be effective for some patients with severe AN. Cutaneous complications were observed. Longer term data are needed.
PubMed: 32580399
DOI: 10.3390/jcm9061946 -
Journal of Psychiatry & Neuroscience :... Sep 2020Several neuroablative procedures are available for severe and treatment-resistant obsessive-compulsive disorder (OCD), but limited knowledge about their relative... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Several neuroablative procedures are available for severe and treatment-resistant obsessive-compulsive disorder (OCD), but limited knowledge about their relative clinical advantages and disadvantages poses obstacles for treatment decision-making.
METHODS
We searched PubMed, Embase, Scopus, Web of Knowledge and the Cochrane Library for reports up to February 2019. We reviewed the literature on the effectiveness (assessed using the Yale-Brown Obsessive Compulsive Scale [Y-BOCS]) and safety of various neuroablative interventions for severe and treatment-resistant OCD.
RESULTS
We included 23 studies involving 487 patients in the systematic review; 21 studies with 459 patients entered meta-analysis. Overall, neuroablation achieved a response rate (proportion of patients with ≥ 35% reduction in Y-BOCS) of 55%. Most of the adverse events (88.4%) were mild and transient. The top 3 adverse events were headache (14.9%), cognitive deficits (9.1%) and behaviour problems (8.1%). Severe or permanent adverse events included personality changes (2.3%) and brain edema or brain cyst (1.5%). The response rates associated with capsulotomy, limbic leucotomy and cingulotomy were 59% (95% confidence interval [CI] 54-65), 47% (95% CI 23-72) and 36% (95% CI 23-50), respectively. Interventions with different coverages of the dorsal part of the internal capsule were associated with different adverse-event profiles but were unlikely to modify clinical effectiveness.
LIMITATIONS
The level of evidence of most included studies was relatively low.
CONCLUSION
Ablative surgeries are safe and effective for a large proportion of patients with severe and treatment-resistant OCD. Among the available procedures, capsulotomy seemed to be the most effective. Further research is needed to improve clinical effectiveness and minimize risks.
Topics: Humans; Obsessive-Compulsive Disorder; Outcome Assessment, Health Care; Psychosurgery; Radiofrequency Ablation
PubMed: 32549057
DOI: 10.1503/jpn.190079 -
International Journal of Law and... 2020Many countries have enacted, or are in the process of enacting, emergency mental health legislation in response to the global pandemic of Covid-19 (coronavirus). In...
Many countries have enacted, or are in the process of enacting, emergency mental health legislation in response to the global pandemic of Covid-19 (coronavirus). In Ireland, the Emergency Measures in the Public Interest (Covid-19) Act, 2020 amends the Mental Health Act 2001 to permit the Mental Health Commission to request an independent psychiatric report about an involuntary patient from any consultant psychiatrist who is not treating the patient (and not just those on its designated panel). This independent examination may occur 'in person', 'by other appropriate means', or even, 'due to the exigencies of the public health emergency', not occur at all, once this is explained in the resultant report. The 2020 Act acknowledges that 'the exigencies of the public health emergency' might hamper the independent psychiatrist's work and requires a written report from the patient's treating psychiatrist 'no earlier than the day before' the tribunal, in lieu of the psychiatrist physically attending a tribunal hearing, although, if possible, they will attend (i.e. phone in to) a tribunal held by conference call. The 2020 Act permits the Mental Health Commission to, if necessary, appoint tribunals 'consisting of one member who shall be a practising barrister or solicitor'. Such a tribunal shall, if possible, consult with a consultant psychiatrist if the reports from the independent psychiatrist and treating psychiatrist conflict or if it is otherwise 'necessary in the interest of the patient'. A tribunal can extend an involuntary order by a second period of 14 days 'of its own motion if the tribunal, having due regard to the interest of the patient, is satisfied that it is necessary'. Tribunals for current involuntary patients will be prioritised over retrospective tribunals for discharged patients; a tribunal can direct a witness to provide 'a written statement' rather than attending; and the patient can make written representation to the tribunal instead of physically attending a tribunal hearing, although they may attend (i.e. phone in to) a tribunal held by conference call. Psycho-surgery for involuntary patients is banned. While it is clear that revisions are urgent and necessary in light of Covid-19, the proportionality of these changes will depend on how, and the extent to which, they are used in practice. With good communication, efficient team-working and close adherence to professional codes of practice and ethics, it is hoped that these amendments will result in a review system that is as reasonable, robust and reassuring as the current, highly unusual circumstances permit.
Topics: Advisory Committees; Betacoronavirus; COVID-19; Commitment of Mentally Ill; Coronavirus Infections; Decision Making; Emergency Service, Hospital; Humans; Ireland; Mental Disorders; Mental Health; Pandemics; Pneumonia, Viral; Psychiatry; SARS-CoV-2
PubMed: 32482306
DOI: 10.1016/j.ijlp.2020.101564 -
Stereotactic and Functional Neurosurgery 2020During the 20th century, only two persons have been awarded the Nobel Prize for psychiatric discoveries, Julius Wagner-Jauregg in 1927 for the introduction of malaria...
During the 20th century, only two persons have been awarded the Nobel Prize for psychiatric discoveries, Julius Wagner-Jauregg in 1927 for the introduction of malaria inoculation in dementia paralytica and Egas Moniz in 1949 for prefrontal leucotomy. According to traditional narrative, Moniz was inspired by a presentation by Carlyle Jacobsen on prefrontal lesions in chimpanzees at a congress in London in 1935. A few months later, he performed the first operations with the help of a young neurosurgeon. These leucotomies were done using injections of a small amount of alcohol into each frontal lobe through a single burr hole on each side of the skull, and the findings from the first 20 patients were published soon after that in 1936. It has, however, been difficult to reconstruct the path leading Moniz to frontal leucotomy, due to his unwillingness to acknowledge contributions from others. Maurice Ducosté, psychiatrist at Villejuif in Paris, France, started his work with psychiatric patients in the early 1920s with mechanical lesions in schizophrenia and continued with injections into the frontal lobes. Later, he focused on general paresis of the insane in neurosyphilis. Here, he introduced injections of malaria-infested blood into the frontal lobes - cerebral impaludation. Injections were used also in schizophrenia, mania, melancholia, and other psychiatric conditions. These injections were up to 5 mL in volume and could be repeated up to 12 times in an individual patient, which must have created significant lesions. Ducosté performed his procedure in hundreds of psychiatric patients before Moniz attempted leucotomy, and his work was presented in several publications before that by Moniz. Moniz basically used the same entry point, target depth, and technique in his first leucotomies. The major difference was that Moniz used alcohol with the clear intent of producing a lesion. Further, Moniz must have been aware of the work of Ducosté, since they presented papers, one after the other, at a meeting of the French Academy of Medicine in 1932. Even so, Moniz never acknowledged any contribution by Ducosté. In my opinion, it would be appropriate to acknowledge the contribution of Maurice Ducosté to the introduction of lobotomy.
Topics: Frontal Lobe; History, 20th Century; Humans; Male; Mental Disorders; Neurosurgeons; Nobel Prize; Psychosurgery
PubMed: 32320974
DOI: 10.1159/000507033 -
Stereotactic and Functional Neurosurgery 2020Thalamotomy is an endorsed treatment for medication-refractory tremor. It used to be the standard, but nowadays deep brain stimulation (DBS) has become the treatment...
BACKGROUND
Thalamotomy is an endorsed treatment for medication-refractory tremor. It used to be the standard, but nowadays deep brain stimulation (DBS) has become the treatment option of choice. Nevertheless, DBS has the disadvantage of hardware failure, battery replacement, and frequent setting adjustment. Radiofrequency (RF) thalamotomy lacks these issues, is relatively inexpensive, and has a broad applicability in patients with significant comorbidity. Therefore, we analyzed the long-term patient-reported outcome of RF thalamotomy in a cohort of patients with an otherwise intractable tremor.
METHODS
A single-center cohort of 27 consecutive patients with intractable tremor was assessed after unilateral RF thalamotomy. Over time, 4 patients had died because of non-related causes. In total, 21 patients responded to a telephone survey to assess their personal judgment on postoperative tremor severity, using a validated tremor scale, adverse events, recurrence, and patient satisfaction. The median time between surgery and telephone survey was 39 months (range 12-126). Seven patients had an additional analysis with postoperative imaging, video-assisted electromyography tremor registration, and a self-reported treatment effect (SRTE) assessment.
RESULTS
Nineteen out of 21 patients (90.5%) reported absence or significant improvement of their tremor. The rating score (WHIGET/UPDRS-III) dropped significantly from a mean of 3.57 preoperatively to 1.05 postoperatively (p < 0.001). Eleven patients (52.4%) reported adverse events, but the majority (76.2%) did not consider the adverse events to be severe. SRTE assessment showed a direct postoperative effect of 89.6 of 100 points (SD 10.8), with a gradual decrease to 75.3 (SD 23.5) during follow-up.
CONCLUSIONS
RF thalamotomy is a very effective long-term treatment for medication-refractory tremor and should therefore be considered in patients with a refractory unilateral tremor.
Topics: Adult; Aged; Aged, 80 and over; Cohort Studies; Electromyography; Female; Follow-Up Studies; Humans; Male; Middle Aged; Patient Reported Outcome Measures; Patient Satisfaction; Psychosurgery; Radiofrequency Ablation; Thalamus; Treatment Outcome; Tremor
PubMed: 32316017
DOI: 10.1159/000506999 -
Journal of Psychiatry & Neuroscience :... Nov 2020Psychiatric surgery, including deep brain stimulation and stereotactic ablation, is an important treatment option in severe refractory psychiatric illness. Several large...
BACKGROUND
Psychiatric surgery, including deep brain stimulation and stereotactic ablation, is an important treatment option in severe refractory psychiatric illness. Several large trials have demonstrated response rates of approximately 50%, underscoring the need to identify and select responders preoperatively. Recent advances in neuroimaging have brought this possibility into focus. We systematically reviewed the psychiatric surgery neuroimaging literature to assess the current state of evidence for preoperative imaging predictors of response.
METHODS
We performed this study in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analysis of Observational Studies in Epidemiology (MOOSE) frameworks, and preregistered it using PROSPERO. We systematically searched the Medline, Embase and Cochrane databases for studies reporting preoperative neuroimaging analyses correlated with clinical outcomes in patients who underwent psychiatric surgery. We recorded and synthesized the methodological details, imaging results and clinical correlations from these studies.
RESULTS
After removing duplicates, the search yielded 8388 unique articles, of which 7 met the inclusion criteria. The included articles were published between 2001 and 2018 and reported on the outcomes of 101 unique patients. Of the 6 studies that reported significant findings, all identified clusters of hypermetabolism, hyperconnectivity or increased size in the frontostriatal limbic circuitry.
LIMITATIONS
The included studies were few and highly varied, spanning 2 decades.
CONCLUSION
Although few studies have analyzed preoperative imaging for predictors of response to psychiatric surgery, we found consistency among the reported results: most studies implicated overactivity in the frontostriatal limbic network as being correlated with clinical response. Larger prospective studies are needed.
REGISTRATION
www.crd.york.ac.uk/prospero/display_record.php?RecordID=131151.
Topics: Deep Brain Stimulation; Humans; Mental Disorders; Neuroimaging; Outcome Assessment, Health Care; Preoperative Care; Psychosurgery; Radiofrequency Ablation; Stereotaxic Techniques
PubMed: 32293838
DOI: 10.1503/jpn.190208 -
Journal of Psychiatric Research Jun 2020Stereotactic ablation (cingulotomy) and subcallosal cingulate deep brain stimulation (SCC DBS) of different regions of the cingulum bundle (CB) have been successfully...
OBJECTIVE
Stereotactic ablation (cingulotomy) and subcallosal cingulate deep brain stimulation (SCC DBS) of different regions of the cingulum bundle (CB) have been successfully used to treat psychiatric disorders, such as depression and bipolar disorder. They are hypothesized to work by disrupting white matter pathways involved in the clinical manifestation of these disorders. This study aims to compare the connectivity of different CB subregions using tractography to evaluate stereotactic targets for the treatment of mood disorders.
METHODS
Fourteen healthy volunteers underwent 3T-MR imaging followed by connectivity analysis using probabilistic tractography. Twenty-one anatomic regions of interest were defined for each subject: 10 CB subregions (including the classical cingulotomy and SCC DBS targets) and 11 cortical/subcortical structures implicated in mood disorders. Connectivity results were compared using Friedman and Bonferroni-corrected post-hoc Wilcoxon tests.
RESULTS
CB connectivity showed a high degree of regional specificity. Both of the traditional stereotactic targets had widespread connectivity with discrete topology. The cingulotomy target connected primarily to the dorsomedial frontal, dorsal anterior cingulate, and posterior cingulate cortices, whereas the SCC DBS target connected mostly to the subgenual anterior cingulate and medial/central orbitofrontal cortices. However, a region of the rostral dorsal CB, lying between these surgical targets, encompassed statistically equivalent connections to all five cortical regions.
CONCLUSIONS
The CB is associated with brain structures involved in affective disorders, and the rostral dorsal CB demonstrates connectivity that is comparable to the combined connectivity of cingulotomy and SCC DBS neurosurgical interventions. The rostral dorsal CB represents a surgical target worthy of clinical exploration for mood disorders.
Topics: Brain; Deep Brain Stimulation; Gyrus Cinguli; Humans; Mood Disorders; White Matter
PubMed: 32272241
DOI: 10.1016/j.jpsychires.2020.03.011 -
Magnetic Resonance-Guided Focused Ultrasound Thalamotomy to Treat Essential Tremor in Nonagenarians.Stereotactic and Functional Neurosurgery 2020Essential tremor (ET) is a disabling movement disorder that is most prevalent among the elderly. While deep brain stimulation surgery targeting the ventral intermediate...
Essential tremor (ET) is a disabling movement disorder that is most prevalent among the elderly. While deep brain stimulation surgery targeting the ventral intermediate nucleus of the thalamus is commonly used to treat ET, the most elderly patients or those with multiple medical comorbidities may not qualify as surgical candidates. Magnetic resonance-guided focused ultrasound (MRgFUS) constitutes a less invasive modality that may be used to perform thalamotomy without the need for a burr hole craniotomy. Here, we report on 2 patients over the age of 90 years who benefited significantly from MRgFUS thalamotomy to relieve their symptoms and improve their quality of life. The procedure was well tolerated and performed safely in both patients. We conclude that age should not be a limiting factor in the treatment of patients with MRgFUS.
Topics: Aged, 80 and over; Essential Tremor; Female; Humans; Magnetic Resonance Imaging; Male; Psychosurgery; Quality of Life; Thalamus; Treatment Outcome; Ultrasonography, Interventional
PubMed: 32224617
DOI: 10.1159/000506817