Immediate Initiation of Antiretroviral Therapy and Integrated Care for HIV/HCV‑Coinfected Elderly Residents

Antiretroviral Therapy Initiation

The U.S. Department of Health and Human Services recommends that antiretroviral therapy (ART) be started within 48–72 hours of confirmed HIV diagnosis in newly diagnosed patients to reduce mortality risk. 1
Preferred first‑line regimens are bictegravir/tenofovir alafenamide/emtricitabine (single‑tablet daily) or a dolutegravir‑based regimen, because integrase strand‑transfer inhibitors have minimal drug‑drug interactions and do not require hepatic dose adjustment. Efavirenz and nevirapine should be avoided due to significant interactions with antiepileptic drugs. 1
Baseline laboratory evaluation before ART initiation must include CD4 count, HIV viral load, resistance testing, hepatitis B surface antigen, and screening for opportunistic infections (e.g., TB, toxoplasmosis, cryptococcosis). 1
In patients with advanced immunosuppression, screen for tuberculosis, toxoplasmosis, and cryptococcal infection prior to ART start. [1][2]
Failure to communicate a documented HIV diagnosis to the patient and care team constitutes a serious safety event and may be considered medical negligence. [1][2]

Chronic hepatitis C infection significantly increases mortality and accelerates liver disease progression in persons coinfected with HIV; therefore, it should be addressed after HIV is virologically controlled. [3][5]
Modern interferon‑free direct‑acting antiviral (DAA) regimens are highly effective in this population, but require multidisciplinary coordination (pharmacy review, infectious‑disease input) to manage potential interactions with ART and antiepileptics. [3][4]
Patients should be counseled to abstain from alcohol completely, and those with ongoing substance use need additional support services and harm‑reduction programs during antiviral therapy. [3][4]5

The American College of Cardiology advises obtaining a 12‑lead ECG and cardiology consultation promptly for elderly patients presenting with sinus bradycardia and irregular rhythm, to evaluate for sick‑sinus syndrome, atrial fibrillation with slow ventricular response, or high‑grade AV block. 6
Telemetry monitoring is recommended for patients with a history of arrhythmias and high risk of sudden cardiac death. 6

Mild protein‑calorie malnutrition increases infection risk, impairs wound healing, and worsens outcomes in individuals with HIV and hepatitis C; aggressive nutritional supplementation is therefore essential. 6

Immediate social‑work consultation and formal investigation are required when a patient’s HIV diagnosis was not communicated or treated, to address potential litigation and ensure patient advocacy. 10
Transfer to a different skilled‑nursing facility is medically and ethically appropriate when therapeutic relationships have broken down and the current facility cannot provide necessary infectious‑disease, cardiac, and psychiatric services. [6][10]
A multidisciplinary team should include case management, social work, psychiatric support, and peer‑support services for HIV and substance‑use disorders. [3][4]1
Depression screening using validated instruments is recommended, as depression is highly prevalent in HIV‑positive patients and adversely affects treatment adherence. [1][10]

An ophthalmology referral for cataract surgery planning should be made once the patient is medically stabilized; cataract removal in the functional eye can markedly improve independence and reduce fall risk. 9
Surgery should be deferred until HIV viral suppression is achieved and CD4 count improves to lower peri‑operative infection risk. 1

Patients with a history of falls, gait instability, visual impairment, and phenytoin toxicity are at extremely high risk for future falls; a comprehensive fall‑prevention protocol is warranted. [9][7]
Physical‑therapy evaluation for assistive devices and environmental modifications (adequate lighting, removal of tripping hazards, bedside commode) should be instituted promptly. 9

Week 1: Daily phenytoin levels until undetectable, daily neurological assessments, HIV viral load and CD4 count, comprehensive metabolic panel, and continuous ECG monitoring. 1
Weeks 2–4: Weekly HIV viral load to confirm ART response, weekly metabolic panels, seizure diary review, and medication‑adherence assessment. 1
Weeks 4–6: Repeat HIV viral load (target > 1 log reduction), CD4 count, hepatitis C viral load, and nutritional markers. 1
Ongoing: Monthly HIV viral load until undetectable, then every 3–6 months; quarterly STI screening; biannual ophthalmology follow‑up. 1

Integrase‑strand‑transfer‑inhibitor (InSTI)‑based ART regimens have minimal interactions with phenytoin, making them the preferred choice in patients on antiepileptics. 1
Phenytoin must be avoided in combination with isoniazid, azole antifungals, macrolide antibiotics, and fluoroquinolones due to the risk of catastrophic toxicity. 1
A pharmacy consultation is mandatory before adding any new medication to ensure safe drug‑interaction profiles. [3][4]

The receiving facility should provide on‑site infectious‑disease specialists experienced in HIV/HCV coinfection, cardiology consultation availability, and robust pharmacy services for complex interaction monitoring. [3][1]6
Additional services needed include social‑work and psychiatric support for substance‑use and mental‑health needs, and physical/occupational therapy for fall prevention and functional optimization. [3][4][9][7]