Publications by authors named "Leslie Suen"

Objectives: Current guidelines for methadone titration may unnecessarily delay reaching effective doses for patients using fentanyl, resulting in an increased risk of ongoing fentanyl use, dissatisfaction with treatment, and early dropout. Development and evaluation of rapid methadone induction protocols may improve treatment for patients using fentanyl.

Methods: Retrospective chart review was conducted for patients admitted in 2022 to a single licensed opioid treatment program (OTP) where a rapid induction protocol provides methadone 40 mg on day 1, 60 mg on day 2, and 80 mg on day 3 to patients using fentanyl <65 years old without significant medical comorbidities.

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Background: The United States is grappling with an unprecedented overdose crisis, exacerbated by the proliferation of potent synthetic opioids like illicitly manufactured fentanyl. Despite the efficacy of methadone treatment in managing opioid use disorder, regulatory barriers hinder its widespread utilization. This article examines the complex landscape of methadone regulation across federal, state, and local levels, highlighting disparities and opportunities for reform.

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Background: Buprenorphine is an effective treatment for opioid use disorder (OUD); however, buprenorphine initiation can be complicated by withdrawal symptoms including precipitated withdrawal. There has been increasing interest in using low dose initiation (LDI) strategies to reduce this withdrawal risk. As there are limited data on withdrawal symptoms during LDI, we characterize withdrawal symptoms in people with daily fentanyl use who underwent initiation using these strategies as outpatients.

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Background: The Tenderloin Center (TLC), a multi-service center where people could receive or be connected to basic needs, behavioral health care, housing, and medical services, was open in San Francisco for 46 weeks in 2022. Within a week of operation, services expanded to include an overdose prevention site (OPS), also known as safe consumption site. OPSs have operated internationally for over three decades, but government-sanctioned OPSs have only recently been implemented in the United States.

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Background: The United States (US) continues to experience unprecedented rates of overdose mortality and there is increased need to identify effective harm reduction practices. Research from Canada describes cannabis donation through harm reduction agencies as an adjunctive strategy to mitigate the negative consequences of more harmful drugs. This case study describes the operational logistics, feasibility, and potential benefits of a cannabis donation program that was operated through a harm reduction program in rural Michigan.

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Importance: Harm reduction is associated with improved health outcomes among people who use substances. As overdose deaths persist, hospitals are recognizing the need for harm reduction services; however, little is known about the outcomes of hospital-based harm reduction for patients and staff.

Objective: To evaluate patient and staff perspectives on the impact and challenges of a hospital-based harm reduction program offering safer use education and supplies at discharge.

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Methamphetamine Toxicities and Clinical ManagementMethamphetamine increases the release and blocks the uptake of norepinephrine, serotonin, and dopamine. This article reviews the morbidity and mortality associated with methamphetamine use and discusses prevention and treatment strategies.

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Objectives: We examined substance use hotline operator certainty of each US state and Washington, DC's endorsement of buprenorphine (initiation and continuation) prescribing via telemedicine.

Methods: Between March and May 2021, we called hotlines in 50 US states and Washington, DC, requesting information on whether practitioners in that state could initiate or continue buprenorphine treatment for opioid use disorder (OUD) via telephone or video conference. We compared operator responses to state implementation of buprenorphine telemedicine initiation.

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Article Synopsis
  • This text outlines a new clinic model called Heart Plus that combines Addiction Medicine and Cardiology to treat patients with stimulant-associated cardiomyopathy (SA-CMP).
  • The approach uses contingency management to significantly improve outpatient care engagement and reduce emergency visits and hospital admissions among these patients.
  • Participants experienced a decrease in stimulant use and were better positioned to access social support services, leading to improved overall health and well-being.
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Background: While substance use is known to influence cardiovascular health, most prior studies only consider one substance at a time. We examined associations between the concurrent use of multiple substances and left ventricular mass index (LVMI) in unhoused and unstably housed women.

Methods: Between 2016 and 2019, we conducted a cohort study of unstably housed women in which measurements included an interview, serum/urine collection, vital sign assessment, and a single transthoracic echocardiogram at baseline.

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Background: Expanding access to opioid use disorder (OUD) treatment, including methadone, is imperative to address the US overdose crisis. In June 2021, the Drug Enforcement Administration announced new regulations allowing all opioid treatment programs (OTPs) to deploy mobile medication units, or methadone vans, to dispense OUD medication treatment outside of clinic walls, ending a 13-year moratorium. We conducted a qualitative study evaluating one opioid treatment program's experience, including benefits and challenges with implementing a methadone van, to inform future policy and clinical practice.

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Background: Between January and December 2022 a multi-service center incorporating an overdose prevention site (OPS) operated with city government sanction in San Francisco. One concern often expressed about OPS is that they may increase social nuisance associated with drug use in the surrounding area, despite international evidence that this is not the case.

Methods: We conducted systematic street observation of 10 indicators of drug- and homelessness-related social nuisance in a 500 m radius around the OPS and around a comparison point in the same city before and after the introduction of the OPS.

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Background: Overdose prevention sites (OPSs) are spaces where individuals can use pre-obtained drugs and trained staff can immediately intervene in the event of an overdose. While some OPSs use a combination of naloxone and oxygen to reverse overdoses, little is known about oxygen as a complementary tool to naloxone in OPS settings. We conducted a mixed methods study to assess the role of oxygen provision at a locally sanctioned OPS in San Francisco, California.

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Objectives: Buprenorphine treatment significantly reduces morbidity and mortality for people with opioid use disorder. Fear of precipitated withdrawal remains a barrier to starting buprenorphine for patients who use synthetic opioids, particularly fentanyl. We aim to evaluate the development and implementation of a buprenorphine low dose overlap initiation (LDOI) protocol in an urban public health community pharmacy.

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Objectives: Contingency management (CM) is one of the most effective treatments for stimulant use disorder but has not been leveraged for people with stimulant-associated cardiomyopathy (SA-CMP), a chronic health condition with significant morbidity and mortality. We aimed to determine the feasibility and acceptability of a multidisciplinary addiction/cardiology clinic with CM for patients with SA-CMP and to explore barriers and facilitators to engagement and recovery.

Methods: We recruited patients with a hospitalization in the past 6 months, heart failure with reduced ejection fraction (<40%) and stimulant use disorder to participate in Heart Plus, a 12-week addiction/cardiology clinic with CM in an urban, safety-net, hospital-based cardiology clinic, which took place March 2021 through June 2021.

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Telehealth services, specifically telemedicine audio-video and audio-only patient encounters, expanded dramatically during the COVID-19 pandemic through temporary waivers and flexibilities tied to the public health emergency. Early studies demonstrate significant potential to advance the quintuple aim (patient experience, health outcomes, cost, clinician well-being, and equity). Supported well, telemedicine can particularly improve patient satisfaction, health outcomes, and equity.

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Article Synopsis
  • - This study focused on how multiple substance use affects blood pressure in women facing homelessness and housing instability, revealing that 63% of participants used at least two substances.
  • - Cocaine was specifically linked to increased systolic and diastolic blood pressure, showing an average increase of 4.71 mmHg and 2.83 mmHg, respectively, even when adjusting for factors like race and body mass index.
  • - The findings suggest that alongside addressing cocaine use, incorporating stimulant screening during cardiovascular risk assessments could help improve health outcomes for this vulnerable population.
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Background: Groin and neck injections are generally a last resort for people who inject drugs (PWID) who do not have easy access to functioning veins. These alternative injection practices can lead to an increased likelihood of adverse health outcomes. There is still much we do not know about groin and neck injections among PWID in the US, as the literature to-date comes from studies primarily focused on groin injections outside the US.

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Background: Internationally, strategies focusing on reducing alcohol-related harms in homeless populations with severe alcohol use disorder (AUD) continue to gain acceptance, especially when conventional modalities focused on alcohol abstinence have been unsuccessful. One such strategy is the managed alcohol program (MAP), an alcohol harm reduction program managing consumption by providing eligible individuals with regular doses of alcohol as a part of a structured program, and often providing resources such as housing and other social services. Evidence to the role of MAPs for individuals with AUD, including how MAPs are developed and implemented, is growing.

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Introduction: The shift from in-person care to telemedicine made it challenging to provide guideline-recommended tobacco cessation care during the COVID-19 pandemic. We described quality improvement (QI) initiatives for tobacco cessation during the COVID-19 pandemic, focusing on African American/Black patients with high smoking rates.

Methods: The QI initiatives took place in the San Francisco Health Network, a network of 13 safety-net clinics in San Francisco, California between February 2020 and February 2022.

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Prior to the COVID-19 pandemic, the United States (US) was already facing an epidemic of opioid overdose deaths. Overdose deaths continued to surge during the pandemic. To limit COVID-19 spread and to avoid disruptions in access to medications for opioid use disorder (MOUD), including buprenorphine and methadone, US federal and state agencies granted unprecedented exemptions to existing MOUD guidelines for Opioid Treatment Programs (OTPs), including loosening criteria for unsupervised take-home doses.

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Objectives: In the setting of a 50% increase in opioid overdose deaths, the coronavirus disease 2019 crisis opened housing opportunities in the form of Shelter in Place (SIP) hotels to homeless San Francisco residents. Many who entered SIP hotels had opioid use disorder. In fall 2020, Community Behavioral Health Services Pharmacy partnered with SIP hotel medical staff to launch a pilot project, where on-site SIP medical providers prescribed buprenor-phine (BUP) and clinical pharmacists hand-delivered BUP to SIP residents to increase BUP initiation and engagement.

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