Introducing point-of-care ultrasound in Danish general practice-elucidating the use through a medical audit

The effect of focused lung ultrasonography on antibiotic prescribing in patients with acute lower respiratory tract infections in Danish general practice: study protocol for a pragmatic randomized controlled trial (PLUS-FLUS)

BACKGROUND

The use of antibiotics is a key driver of antimicrobial resistance and is considered a major threat to global health. In Denmark, approximately 75% of antibiotic prescriptions are issued in general practice, with acute lower respiratory tract infections (LRTIs) being one of the most common indications. Adults who present to general practice with symptoms of acute LRTI often suffer from self-limiting viral infections. However, some patients have bacterial community-acquired pneumonia (CAP), a potential life-threatening infection, that requires immediate antibiotic treatment. Importantly, no single symptom or specific point-of-care test can be used to discriminate the various diagnoses, and diagnostic uncertainty often leads to (over)use of antibiotics. At present, general practitioners (GPs) lack tools to better identify those patients who will benefit from antibiotic treatment. The primary aim of the PLUS-FLUS trial is to determine whether adults who present with symptoms of an acute LRTI in general practice and who have FLUS performed in addition to usual care are treated less frequently with antibiotics than those who only receive usual care.

METHODS

Adults (≥ 18 years) presenting to general practice with acute cough (< 21 days) and at least one other symptom of acute LRTI, where the GP suspects a bacterial CAP, will be invited to participate in this pragmatic randomized controlled trial. All participants will receive usual care. Subsequently, participants will be randomized to either the control group (usual care) or to an additional focused lung ultrasonography performed by the GP (+ FLUS). The primary outcome is the proportion of participants with antibiotics prescribed at the index consultation (day 0). Secondary outcomes include comparisons of the clinical course for participants in groups.

DISCUSSION

We will examine whether adults who present with symptoms of acute LRTI in general practice, who have FLUS performed in addition to usual care, have antibiotics prescribed less frequently than those given usual care alone. It is highly important that a possible reduction in antibiotic prescriptions does not compromise patients' recovery or clinical course, which we will assess closely.

TRIAL REGISTRATION

ClinicalTrials.gov NCT06210282. Registered on January 17, 2024.

Implementation of Point‑of‑Care ultrasound examination in general practice

Point-of-Care ultrasonography (POCUS) is a method defined as a targeted ultrasound examination of patients with acute symptoms or syndromes that can be diagnosed by a healthcare worker at a site. The aim is to answer a specific diagnostic or therapeutic question or to ease the therapeutic procedure. Recently in Europe, there has been an increase in implementing POCUS in many medical fields including primary health care. The Czech Society of General Practice (SVL ČLS JEP) has for several years been watching the use of POCUS in primary care in many European countries. In August 2020, the committee of the Czech Society of General Practice charged the Working Group for ultrasound in primary care to start a project POCUS iGP - POCUS Implementation in General Practice aiming for the implementation of POCUS into daily practice in general medicine. An ultrasound device is required, as well as setting up the education and training courses with follow up courses and a consensual curriculum of skills, securing quality control mechanisms, proving with scientific evidence the reliability of POCUS when provided by GPs and setting up the final rules of competency and payment for performance. The current international trend of patient centred care in primary health settings and increasing competencies of GPs emphasises a need to implement new point of care diagnostic methods. One of which is point of care ultrasonography. Scientific outcomes and published data from primary care and other fields of medicine show that even doctors who do not work in radiology departments are after a relatively short course able to independently provide POCUS examinations with high reliability. Establishment of the Czech Multidisciplinary Task Force Group for standards, education and research in Pointof- Care ultrasound support development of the POCUS implementation.

Role of point-of-care ultrasonography (POCUS) in the diagnosing of acute medial meniscus injury of knee joint

BACKGROUND

In recent years, musculoskeletal ultrasound has increasingly become the common method for diagnosis for many medical specialties. Therefore, the present study was performed to evaluate the diagnostic value of point-of-care ultrasonography (POCUS) as a primary triage tool in the diagnosis of the acute medial meniscus injury of the knee.

MATERIALS AND METHODS

The present cross-sectional study was performed on patients with a suspected medial meniscus injury of the knee in the emergency department (ED). After history taking and primary physical examination, radiographic imaging of the knee was done. If there was no fracture in the knee X-ray, the POCUS examination on the knee was carried out. All the patients were asked to refer to an orthopedic clinic 2 weeks after discharge from ED for the Magnetic Resonance Imaging (MRI) evaluation. Finally, the POCUS findings were compared with the MRI findings in diagnosing medial meniscus injury.

RESULTS

Fifty-five patients with a mean age of 35.48 ± 11.58 years were analyzed in the study (69.1% male). In comparison with MRI scan, the sensitivity and specificity of POCUS in the detection of medial meniscus injury were 85.0 [95% confidence interval (CI), 54.0 to 98.9] and 65.7% [95% CI 42.2 to 85.7], respectively. Its positive and negative predictive values were 58.6% [95% CI 33.8 to 81.5] and 88.5% [95% CI 62.1 to 99.3], respectively. (Area under the ROC curve = 0.726, P value = 0.003).

CONCLUSION

The present study demonstrated that POCUS can reasonably be applied in comparison with MRI to evaluate medial meniscus injury. POCUS is an effective initial diagnostic modality in patients with suspected medial meniscus injuries.