Tag: cannabis

Reading of the Week: Catatonia – the new NEJM Review; CBD for Bipolar and Dr. Samuels on Medical Assistance in Dying

November 23, 2023 / / 0 Comments

From the Editor

Catatonia has been well described but is poorly understood.

So write Drs. Stephan Heckers and Sebastian Walther (both of Vanderbilt University) in a new review. We could add: catatonia is often striking. I remember a patient who literally sat for hours in his chair with catatonia secondary to schizophrenia. His family, in some denial, had insisted that his poor eating was related to hospital food and that his lack of activity had to do with the boredom of the ward.

Drs. Heckers and Walther’s review, just published in The New England Journal of Medicine, notes: “Catatonia is common in psychiatric emergency rooms and inpatient units,” with an estimated prevalence of 9% to 30%. They describe the diagnosis and treatment. We consider the paper and its implications.

Waxy flexibility (from catatonia) in an undated photo

Interest in CBD has surged in recent years. Can it help with the tough clinical problem of bipolar depression? In the second selection, Dr. Jairo Vinícius Pinto (of the University of São Paulo) and his co-authors attempt to answer that question in a new Canadian Journal of Psychiatry paper. They describe a pilot study, with 35 patients randomized to CBD or placebo, finding: “cannabidiol did not show significantly higher adverse effects than placebo.”

And in the third selection, Dr. Hannah Samuels (of the University of Toronto) discusses medical assistance in dying in a paper for Academic Psychiatry. This resident of psychiatry describes a patient who, dealing with pain, opted for MAiD. Dr. Samuels considers the decision but her ambivalence in part stemming from her training. “I felt sad, confused, and morally conflicted. Mrs. L never faltered in her confidence that this was the right decision for her, but I could not understand it.”

DG

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Reading of the Week: Legal Cannabis at 5 – Considering Nonmedical Legalization with a CMAJ Commentary, Dr. Buckley’s Reflections and Major Papers

October 19, 2023 /

From the Editor

On Oct. 17, 2018, the government of Canada will launch a national, uncontrolled experiment in which the profits of cannabis producers and tax revenues are squarely pitched against the health of Canadians. When Bill C-45 comes into force in mid-October, access to recreational marijuana will be legal, making Canada one of a handful of countries to legalize recreational use of the drug. Given the known and unknown health hazards of cannabis, any increase in use of recreational cannabis after legalization, whether by adults or youth, should be viewed as a failure of this legislation.

 – Dr. Diane Kelsall, Editor-in-Chief, CMAJ, October 2018

On Tuesday, Canada’s experiment with the legalization of cannabis for nonmedical purposes turned five. Did use go up? What about health care utilization? Have there been benefits from justice and social justice perspectives? Is it the failure that Dr. Kelsall feared?

Now is a good time to pause and review the impact of this change. In this Reading, we try to do just that. 

We start with a CMAJ commentary just published. Benedikt Fischer (of Simon Fraser University) and co-authors look at the evidence, including studies on use and ED presentations, as well as statistics on purchases. “A consideration of the evidence 5 years after implementation suggests that success in meeting policy objectives has been mixed, with social justice benefits appearing to be more tangibly substantive than health benefits.”

Dr. Leslie Buckley (of the University of Toronto) mulls this moment with some comments about the CMAJ paper, and the larger discussion. “[T]he legal changes were enacted and resulted in positive outcomes while the preventive changes which would require more financial investment and tight regulation received less attention.”

Finally, we look at three important papers on cannabis that have been featured in this series over the past five years, and another one that we haven’t looked at before.

DG

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Reading of the Week: Substances, Substances, Substances – Papers from CJP & JMIR, and Dr. Devine on Our Federal Strategy

August 3, 2023 /

From the Editor

Creams, gummies, drinks. Cannabidiol (CBD) is increasingly popular and found in various products. Given its supposed benefits, including as an anxiolytic, could CBD be part of a harm reduction strategy?

In new paper for The Canadian Journal of Psychiatry, Lindsay A. Lo (of the University of Toronto) and her co-authors attempt to answer that question with a rapid review of 27 studies, including 5 randomized trials, covering opioids, cocaine, and polydrug use. “Low-quality evidence suggests that CBD may reduce drug cravings and other addiction-related symptoms and that CBD may have utility as an adjunct harm reduction strategy for people who use drugs.” We discuss the paper and its implications.

In the second selection, Dr. Braden O’Neill (of the University of Toronto) and his co-authors consider cannabis clinic websites. Focusing on Ontario, they find 29 clinic websites. In new paper for Journal of Medical Internet Research, they look at the claims made, and analyze the supporting literature. “The recommendation of cannabis as a general therapeutic for many indications unsupported by high-quality evidence is potentially misleading for medical practitioners and patients.”

And in the third selection, Dr. Jeremy Devine (of McMaster University) writes about federal drug policy in an essay for The Toronto Star. He feels that the current approach to the opioid crisis is flawed, with its focus on “regulation” – and he is particularly critical of safe supply programs. “The core ideological flaw in our drug policy is that it fails to recognize a hard truth: the drug user cannot have both their addiction and a free, safe, and self-determined life.”

DG

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Reading of the Week: Cannabis Potency & Mental Health – the New Lancet Psych Paper; Also, Legalization & Poisonings (NEJM) and Nicholson on Her Son (CBC)

September 8, 2022 /

From the Editor

“In the USA and Europe, the concentration of THC has more than doubled over the past 10 years…”

So notes a new paper in The Lancet Psychiatry.

Canada legalized cannabis for recreational purposes four years ago; other countries have done the same, as have almost two dozen US states. But how has cannabis itself changed over time? What are the implications for mental health disorders? And public policy? In the first selection, quoted above, Kat Petrilli (of the University of Bath) and her co-authors do a systematic review of cannabis potency and mental health and attempt to answer these questions. Drawing on 20 studies, they find: “Overall, the evidence suggests that the use of higher potency cannabis, compared with lower potency cannabis, is associated with an increased risk of psychosis, and this risk is higher in people who use cannabis daily.” We look at the paper and weigh its clinical implications.

In the second selection, using Ontario data, Dr. Daniel T. Myran (of the University of Ottawa) and his co-authors consider the effect of edible cannabis legalization on poisonings of children. Writing for The New England Journal of Medicine, they compare jurisdictions with legal sales (Alberta, British Columbia, and Ontario) with a province that hasn’t legalized that form of cannabis (Quebec). “Our data indicate that legalization was associated with marked increases in hospitalizations for cannabis poisoning in children.”

And, in the third selection, Shirley Nicholson writes about substance and stigma with a deeply personal essay. In this piece for CBC First Person, she discusses her son’s struggles and his death from an overdose. She writes: “He didn’t plan to die at 27. He was more than his addictions. He was our son, our brother, our grandson, our nephew, our cousin and we all loved him so.”

DG

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Reading of the Week: Buprenorphine for Opioids – the New AJP Paper; Also, Cannabis & Hospitalizations (CJP) and Dr. Rosenberg’s Career & Illness (NYT)

August 11, 2022 /

From the Editor

A rise in substance use. Staff shortages and burnout. Waits for care.

The problems of the pandemic on mental health care have been clear and unfortunate. But how has care changed – and possibly improved – over the pandemic? In the first selection, Lewei Lin (of the University of Michigan) and her co-authors look at buprenorphine treatment before and during the pandemic. In a new paper for The American Journal of Psychiatry, they find a shift in care and a success story: “The number of patients receiving buprenorphine continued to increase after the COVID-19 policy changes, but the delivery of care shifted to telehealth visits…” We consider the paper and its clinical implications.

In the second selection, drawing on Canadian data, Chungah Kim (of Brock University) and her co-authors look at cannabis legalization and cannabis-related hospitalizations. In this new Canadian Journal of Psychiatry brief report, they find: “the initial legalization was followed by clinically significant increases in cannabis-related hospitalizations; however, the subsequent increase in retail stores, availability of cannabis edibles, and COVID-19 pandemic was not associated with a further increase in hospitalizations in Ontario.”

In the third selection, we consider the life and legacy of Dr. Leon E. Rosenberg with the obituary from The New York Times. Dr. Rosenberg had a storied career – a pioneer in genetics research, a dean of Yale, and the chief science officer at Bristol Myers Squibb. He’s also a person who had bipolar disorder and took lithium. “I am proof that it is possible to live a highly successful career in medicine and science, and to struggle with a complex, serious mental illness at the same time.”

Please note that there will be no Readings for the next two weeks.

DG


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Reading of the Week: Cannabis for Mood Disorders – the New CJP Paper; Also, Dr. Insel on Mental Health (QT) and Transgender Adolescents & Suicidality (CMAJ)

June 23, 2022 /

From the Editor

He smokes before bed to help with sleep; she finds that the edibles take an edge off from her lows.

Our patients routinely tell us about the benefits of cannabis for mood disorders. But is there any evidence in the literature? In the first selection from The Canadian Journal of Psychiatry, Dr. Smadar V. Tourjman (of the Université de Montréal) and her co-authors consider that question with a systematic review, drawing on data from 56 studies, focused on bipolar and major depressive disorders, for a CANMAT task force report. They conclude: “cannabis use is associated with worsened course and functioning of bipolar disorder and major depressive disorder.” We consider the paper and its implications.

In this week’s second selection, we look at new Quick Takes podcast interview with Dr. Thomas Insel (of the Steinberg Institute). Dr. Insel, a psychiatrist and former director of NIMH, speaks about the progress in neuroscience but the need for mental health reform. “We must think about more than just the classic medical model borrowed from infectious disease: simple bug, simple drug.”

Finally, in the third selection, Mila Kingsbury (of the University of Ottawa) and her co-authors consider the risk of suicidality among trangender and sexual minority adolescents; they draw from a nationally representative, cross-sectional survey. “Gender and sexual minority adolescents, particularly those who identify as transgender and gender-nonconforming, appear to be at greater risk of suicidal ideation and suicide attempt than their cisgender and heterosexual peers.”

There will be no Reading next week.

DG

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Reading of the Week: Suicide & Physicians – the New CJP Paper; Also, Cannabis and Psychiatry (BJP) and Tom Insel on Mental Health Care (Atlantic)

June 2, 2022 /

From the Editor

Despite what we may wish to believe, physicians are mortal. We can develop illnesses – even mental disorders. And some (too many) suicide. Past studies have shown that doctors die by suicide more than the general population. But the data wasn’t Canadian.

In the first selection, Dr. Manish M. Sood (of the University of Ottawa) and his co-authors consider suicide by Canadian physicians. In a new Canadian Journal of Psychiatry paper, they do a population-based, retrospective cohort study drawing on more than a decade and a half of data. They write: “Physicians in Ontario are at a similar risk of suicide deaths and a lower risk of self-harm requiring health care relative to nonphysicians.” We look at the paper.

In the second selection, Dr. Julia Jiyeon Woo (of McMaster University) and her co-authors review cannabis from the perspectives of clinicians and patients. In a new British Journal of Psychiatry paper, they note: “This growing discrepancy between clinicians’ and patients’ perspectives on cannabinoids can be extremely damaging to the therapeutic alliance.” They offer practical suggestions.

And in the third selection, Dr. Thomas Insel (of the Steinberg Institute) considers what’s right and what’s wrong with mental health care. As the director of NIMH, he oversaw $20 billion of funding; in his new book, excerpted in the pages of The Atlantic, he calls for mental health reform. He writes: “There are only two kinds of families in America: those who are struggling with mental illness and those who are not struggling with mental illness yet. To ensure that we serve all families well, we don’t necessarily need to know more to do better.”

DG

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Reading of the Week: Lived Experience & Psychosis – the New World Psych Paper; Also, the Evidence for Cannabis (QT) and Bob Bell on Psychotherapy (Globe)

May 19, 2022 /

From the Editor

“Something as basic as grocery shopping was both frightening and overwhelming for me. I remember my mom taking me along to do grocery shopping as a form of rehabilitation… Everything seemed so difficult.”

So comments a patient on the experience of a relapse of psychosis.

Typically, we describe psychosis with lists of symptoms. But how do patients understand these experiences? In a new World Psychiatry paper, Dr. Paolo Fusar-Poli (of King’s College) and his co-authors attempt to answer this question with a “bottom-up” approach. As they explain: “To our best knowledge, there are no recent studies that have successfully adopted a bottom-up approach (i.e., from lived experience to theory), whereby individuals with the lived experience of psychosis (i.e., experts by experience) primarily select the subjective themes and then discuss them with academics to advance broader knowledge.” We discuss their paper.

In the second selection, we consider a new Quick Takes podcast. Dr. Kevin Hill (of Harvard University) reviews the cannabis literature and weighs the evidence. He notes the hazards of CBD, the lack of evidence for cannabis and sleep, and his fondness for the Chicago Bears. “There are very strong proponents for cannabis and there are people who are entirely sceptical about it. And the answers to a lot of these questions are somewhere in the middle.”

Finally, in the third selection, Dr. Robert Bell (of the University of Toronto) and his co-authors advocate for the expansion of public health care to cover psychotherapy. Dr. Bell, who is a former Deputy Minister of Health of Ontario, makes a clear case drawing on international examples. “Canadians understand that good health requires mental-health support, and co-ordinated investment in mental-health treatment would pay dividends in reducing the impact of mental-health disability on the economy.”

DG

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Reading of the Week: Cannabis & Driving – a New RCT; Also, Prolonged Grief Disorder (JAMA Psych) and the Life and Legacy of Alan A. Stone (NYT)

February 10, 2022 /

From the Editor

It’s legal. It’s readily available. What are the implications for road safety?

Cannabis is the focus of more and more research. Little, though, has been studied for its effects on driving. In the first selection, Thomas D. Marcotte (of the University of California San Diego) and his co-authors consider cannabis and driving performance. In a new paper for JAMA Psychiatry, they report on an RCT: “In a placebo-controlled parallel study of regular cannabis users smoking cannabis with different THC content ad libitum, there was statistically significant worsening on driving simulator performance in the THC group compared with the placebo group.” We consider the paper and its clinical implications.

Next month, the American Psychiatric Association releases DSM-5-TR, the first major update to the DSM series in nine years. Though the diagnostic criteria of several disorders have been revised, there is only one new disorder: prolonged grief disorder. In the second selection, Holly G. Prigerson (of Cornell University) and her co-authors write about it for JAMA Psychiatry. “PGD is a serious mental disorder that puts the patient at risk for intense distress, poor physical health, shortened life expectancy, and suicide.”

Finally, in the third selection, we consider the life and legacy of Dr. Alan A. Stone, a psychiatrist who passed at the age of 92. In his obituary for The New York Times, reporter Clay Risen describes his incredible career – as a psychoanalyst, a Harvard professor (in both the faculties of law and medicine), and a former president of the American Psychiatric Association who championed dropping homosexuality as a psychiatric disorder.

DG

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Reading of the Week: Cannabis & Cannabinoids in Psychiatry – the New AJP Paper; Also, Dr. Jillian Horton on Her Burnout & Recovery (QT)

December 16, 2021 /

From the Editor

It’s popular – but is it actually helpful?

With legalization, cannabis is readily available. Not surprisingly, our patients are increasingly trying it. But what’s the latest evidence? In the first selection, we consider a new paper that was just published by The American Journal of Psychiatry. Dr. Kevin P. Hill (of Harvard University) and his co-authors review almost 850 papers and comment on everything from the potential therapeutic effects of cannabis to clinician guidance. “There is little data indicating that cannabinoids are helpful in treating psychiatric illness, while there is considerable evidence that there is potential for harm in vulnerable populations such as adolescents and those with psychotic disorders.” We consider the big paper and its clinical implications.

marijuana_cannabis_plant

In this week’s second selection, we mull physicians and burnout. Dr. Jillian Horton (of the University of Manitoba) joins me for a Quick Takes podcast interview. We discuss burnout, mindfulness, and recovery. She comments on her own burnout: “I would get home at the end of my long shifts on the wards, and I would have nothing left. Nothing left for myself, nothing left for my spouse, nothing left for my children.”

Please note that there will be no Readings for the next two weeks. We will return in early January with the best of 2021.

DG

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