The needle and the damage done: clinical and behavioural markers of severe femoral vein damage among groin injectors

Prevalence and factors associated with neck injection among people who inject drugs in San Francisco, California

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. We assessed prevalence, predictors, and associated behaviors of neck injection through a survey fielded in San Francisco, California, US.

METHODS

The sample comes from a longitudinal observational study that used targeted sampling to recruit PWID in San Francisco. The current study sample includes 239 PWID who completed their 12-month survey between June 2019 and June 2020.

RESULTS

About a third of the sample reported injecting in their neck in the past 30 days, with the most common reason being lack of available veins. Age, past 6-month abscess / soft tissue infection, and past 30-day use of opioids mixed with cocaine were significantly associated with past 30-day neck injection in the final multivariate model. Past 30-day neck injection was also significantly associated with being injected by another person in the past 30 days.

CONCLUSIONS

PWID at higher risk for vein deterioration were more likely to inject into their neck. Harm reduction strategies such as safer injection counseling, safe smoking supplies, use of "street doctors," and safe consumption sites may reduce instances of neck injection and/or associated health risks.

Heroin-induced respiratory depression and the influence of dose variation: within-subject between-session changes following dose reduction

BACKGROUND AND AIMS

Globally, more than 100 000 people die annually from opioid overdose. Opportunities to study physiological events in at-risk individuals are limited. This study examined variation of opioid dose and impact on respiratory depression in a chronic injecting heroin user at separate time-points during his long-term diamorphine maintenance treatment.

DESIGN

A single-subject study over 5 years during which participant underwent experimental studies on diamorphine-induced respiratory depression, at changing maintenance doses.

SETTING

A clinical research facility. Participant Male subject on long-term injectable diamorphine (pharmaceutical heroin) maintenance treatment for heroin addiction.

MEASUREMENTS

Physiological measures of oxygen saturation (SpO₂ ), end-tidal carbon dioxide (ETCO₂ ) and respiratory rate (RR) were used to indicate severity of respiratory depression.

FINDINGS

(1) After diamorphine injection, respiratory regulation became abnormal, with prolonged apnoea exceeding 20 sec (maximum 56 sec), elevated ETCO₂ (maximum 6.9%) and hypoxaemia (minimum SpO₂ 80%). (2) Abnormalities were greater with highest diamorphine dose: average SpO₂ was 89.3% after 100 mg diamorphine versus 93.6% and 92.8% for the two 30-mg doses. (3) However, long apnoeic pauses and high levels of ETCO₂ % were also present after lower doses.

CONCLUSIONS

With marked inter-session variability, these findings corroborate observations of inconsistent relationships between opioid dose and overdose risk.

Deep Vein Thromboses in Injecting Drug Users: Meanings, Bodily Experiences, and Stigma

Deep vein thromboses (DVTs) are common sequelae of injecting drugs into the groin. We explored meanings and experiences of DVTs in a group of 19 patients from the North East of England with a DVT and in treatment for opioid use. We report three themes: (a) DVT meaning making, (b) embodied experience, and (c) Stigma. Patients attributed DVTs to groin injecting, though thought other factors were also partially responsible. Medication performed both treatment and preventive functions. The most pertinent worry was amputation. Patients recognized stopping injecting as important, but it did not necessarily occur. Stigma resulted in delayed admission to hospital and feelings of isolation; support groups might alleviate the latter. Although groin injecting was undertaken partly to avoid the censure of being a drug user, ironically, a DVT led to long-standing stigmata that were discrediting signs of that exact status.

Options for reducing HIV transmission related to the dead space in needles and syringes

BACKGROUND

When shared by people who inject drugs, needles and syringes with different dead space may affect the probability of HIV and hepatitis C virus (HCV) transmission differently.

METHODS

We measured dead space in 56 needle and syringe combinations obtained from needle and syringe programs across 17 countries in Europe and Asia. We also calculated the amounts of blood and HIV that would remain in different combinations following injection and rinsing.

RESULTS

Syringe barrel capacities ranged from 0.5 to 20 mL. Needles ranged in length from 8 to 38 mm. The average dead space was 3 μL in low dead space syringes with permanently attached needles, 13 μL in high dead space syringes with low dead space needles, 45 μL in low dead space syringes with high dead space needles, and 99 μL in high dead space syringes with high dead space needles. Among low dead space designs, calculated volumes of blood and HIV viral burden were lowest for low dead space syringes with permanently attached needles and highest for low dead space syringes with high dead space needles.

CONCLUSION

The dead space in different low dead space needle and syringe combinations varied substantially. To reduce HIV transmission related to syringe sharing, needle and syringe programs need to combine this knowledge with the needs of their clients.

Falls, Balance Confidence, and Lower-Body Strength in Patients Seeking Outpatient Venous Ulcer Wound Care

PURPOSE & ABSTRACT

To provide information about a quality improvement project examining falls in persons seeking outpatient wound care.

TARGET AUDIENCE

This continuing education activity is intended for physicians and nurses with an interest in skin and wound care.

OBJECTIVES

After participating in this educational activity, the participant should be better able to:1. Describe the scope of the problem and the related quality improvement project. 2. Delineate the results of the project and their implications for treatment of patients with venous ulcers.

OBJECTIVE

The authors aim to examine fall occurrence and fall injuries in persons seeking outpatient wound care and to compare falls, balance confidence, and lower-body strength in persons with injection-related venous ulcers (IRVUs) versus persons with venous ulcers (VUs) related to other risk factors besides injection drugs (VUs-other).

DESIGN

This quality improvement project used a cross-sectional, comparative design. Participants responded to demographic questions, the Activities-specific Balance Confidence (ABC) Scale, fear of falling, fall numbers, and injuries and performed the 30-second chair-rise test.

SETTING

Outpatient wound service.

PATIENTS

Patients (N = 106; mean age, 59.94 years) included men (66%) and women.

RESULTS

Sixty patients reported falling; 47 were recurrent fallers. Twenty patients stated they were injured, but did not go to an emergency department. A higher number of total falls was significantly related to more comorbidities. Total falls were significantly related to fear of falling and ABC Scale scores. Those with VUs-other had significantly more comorbidities and higher body mass index values than those with IRVUs. Those with IRVUs were comparable to those VUs-other on number of falls and fear of falling, respectively. Those with IRVUs (7.30) performed significantly more chair rises than those with VUs-other (4.72). Persons with IRVUs had significantly higher ABC Scale scores (63.24%) than those with VUs-other (49.38%).

CONCLUSIONS

Falls are a common occurrence in persons seeking outpatient wound care. Despite greater strength sufficient to perform more chair rises among those with IRVUs, fall rates were comparable to those of weaker individuals with other types of VUs. With the high occurrence of falls during the project, long-term risk for fall injury would be high. Further research is needed to clarify interactions between VU risk and patient factors such as strength, age, agility, and impaired cognition.

Factors that influence the characteristics of needles and syringes used by people who inject drugs in Tajikistan

BACKGROUND

"Low dead space" syringes with permanently attached needles retain less fluid, blood, and HIV after use than standard "high dead space" syringes. This reduces the probability of HIV transmission if they are shared by people who inject drugs (PWID). The World Health Organization recently recommended that needle and syringe programs (NSP) offer clients low dead space syringes. The success of this recommendation will depend on PWID switching to low dead space needles and syringes. This paper examines the needles and syringes that PWID in Tajikistan use and factors that influence their choices.

METHODS

In May 2014, we conducted six focus groups in Kulob and six in Khorog, Tajikistan, with a total of 100 participants. NSP staff members recruited participants. Focus group topics included the needles and syringes used and factors that influence choice of needles and syringes. Focus groups were conducted in Russian and Tajik, audio recorded, transcribed, and translated into English. The translated files were imported into NVivo 10 for coding and analysis.

RESULTS

All participants in both cities were male and reported injecting heroin. Everyone also reported using syringes with detachable needles almost exclusively. The most popular syringe sizes were 2 and 5 ml. Needles ranged in gauge from 25 to 21 g. Needle gauge was influenced by the size of the vein, the viscosity of drug solution to be injected, and problems with blood clotting. Needles ranged in length from 12 to 38 mm, with 25 and 32 mm being the most popular. Needle length was influenced by the depth of the vein being used. Many PWID inject volumes of fluid greater than 1 ml into deep veins that require needles at least 25 mm long and 25 g in diameter.

CONCLUSION

Most low dead space syringes are 1-ml insulin syringes with 12 mm 28 g permanently attached needles. Findings from this project suggest that these will not be acceptable to PWID who need larger syringes and longer and thicker needles that are detachable. Low dead space detachable needles appear to be an acceptable option that could overcome barriers to the widespread use of low dead space equipment for reducing HIV and HCV transmission.

Going into the groin: Injection into the femoral vein among people who inject drugs in three urban areas of England

BACKGROUND

There have been increasing concerns about injection into the femoral vein - groin injecting - among people who inject drugs in a number of countries, though most studies have been small. The extent, reasons and harms associated with groin injecting are examined.

METHOD

Participants were recruited using respondent driven sampling (2006-2009). Weighted data was examined using bivariate analyses and logistic regression.

RESULTS

The mean age was 32 years; 25% were women (N=855). During the preceding 28 days, 94% had injected heroin and 13% shared needles/syringes. Overall, 53% reported ever groin injecting, with 9.8% first doing so at the same age as starting to inject. Common reasons given for groin injecting included: "Can't get a vein elsewhere" (68%); "It is discreet" (18%); and "It is quicker" (14%). During the preceding 28 days, 41% had groin injected, for 77% this was the only body area used (for these "It is discreet" was more frequently given as a reason). In the multivariable analysis, groin injection was associated with: swabbing injection sites; saving filters for reuse; and receiving opiate substitution therapy. It was less common among those injecting into two body areas, and when other people (rather than services) were the main source of needles. Groin injection was more common among those with hepatitis C and reporting ever having deep vein thrombosis or septicaemia.

CONCLUSIONS

Groin injection was common, often due to poor vascular access, but for some it was out of choice. Interventions are required to reduce injecting risk and this practice.

Evaluation of Femoral Ultrasonography as a Tool for Promoting Cessation of Groin-Injecting Behaviour

AIM

To assess the impact of femoral ultrasonography accompanied by explanation of the findings (UFV) on groin-injecting behaviour.

METHODS

348 heroin-addicted groin injectors (GIs) on opioid substitution treatment (OST) were included in the study: 174 received UFV (cases), 174 did not (controls). Injecting behaviour among cases and matched controls were compared for both 'persistent GIs' (patients who had injected via the femoral vein in the 28-day period preceding the baseline) and 'former GIs' (patients with a history of previous groin injecting).

FINDINGS

There were no significant between-group differences in gender, mean age, time in treatment, substitute medication and mean dose at baseline or injecting behaviour prior to baseline. After baseline, reduction by a third in the proportion still groin injecting was immediately evident among UFV cases versus controls (number needed to treat: 3, 95% CI: 2, 8; p < 0.001). Marked reduction in groin-injecting behaviour among UFV cases was maintained over 12 months, including fewer relapses among 'former GIs' (number needed to treat: 5, 95% CI: 4, 9; p < 0.001).

CONCLUSION

Single-session UFV may promote cessation of groin-injecting behaviour among patients receiving OST. This benefit appears to be evident 12 months later. Further evaluation of this novel approach to the management of groin injecting, a particularly harmful behaviour, is now warranted.

Death due to an unrecognized groin abscess in a drug addict: a retrospective study

Intravenous drug injection persists despite health risks and medical complications. Venous thrombosis, septic thrombophlebitis, artery necrosis, arterio-venous fistula, mycotic aneurysm, dissecting hematoma, pseudoaneurysm formation, and soft tissues infections (i.e. abscesses, cellulitis, infected ulcers), are some of the major clinical consequences lives threatening. The aim of this work is to present this unusual autoptic case of a drug addict man died for an unrecognized groin abscess referred to the Institute of Legal Medicine, University of Chieti, causing femoral vein's erosion, and to analyse the most common patterns of vascular lesions among drug addicts. It could be stimulated a new scientific debate because groin injections and their vascular complications increase over years; while soft tissue infections may hide vascular lesions' diagnosis. So physicians should have a high index of suspicion for serious vascular problems, among intravenous drug users (IDUs): prevention for avoiding groin injection and a proper treatment are necessary.