Follow-up Modalities Research Articles

Acute myocarditis presentation and intra-hospital prognosis: results of the multicenter prospective MYOCARDITIRM study

Abstract Background Acute myocarditis (AM) usually presents as chest pain with rising troponin and normal coronary arteries. Despite frequent favorable evolution at the acute phase, it is associated with heart failure and ventricular rhythm disorders and is considered the leading cause of sudden cardiac death in young apparently healthy adults. There is no recommendation for AM, only expert consensus, given the lack of important databases for a strong level of confidence. Methods We performed a multicenter prospective observational study of patients admitted for AM acknowledged by cardiac MRI to describe baseline characteristics, management, in-hospital and long-term outcomes of AM patients in France. Secondary objectives were to investigate determinants of prognosis, modalities of treatment and follow-up, and to identify gaps between expert consensus and real-life management. Results We enrolled 805 consecutive patients hospitalized for AM in 49 participating centers between May 2016 and February 2019. Median age was 31 (IQR 23-41) with 19% of female. Chest pain was the most frequent symptom (93%) and 112 (14%) had severity criteria upon admission (LVEF<50% or severe ventricular arrythmia or high-grade AV block or cardiogenic shock). ST elevation was observed in 49% of patients. One 26-years old patient died during initial hospital stay. Overall, 62 patients (8%) experienced intra-hospital complication of their AM, defined as a combined endpoint of death, LVEF<40% (MRI), sustained ventricular or supraventricular arrythmia, acute renal failure, cardiogenic shock, need for ventricular assistance device, need for inotropic drugs, temporary cardiac pacing, pace-maker or cardiac defibrillator implantation. Patients with initial severity criteria were 10 times more likely to present intra-hospital complication (33% vs 3.6%, p<0.001). Conclusion This prospective cohort represents the largest database on AM worldwide. Here we report baseline characteristics and in hospital events. Most patients had typical presentation with favorable outcomes but as much as 8% of patients did exhibit intra-hospital complication. The prospective follow up will provide valuable data to better identify subset of patients with poor prognosis that may be of interest to develop new therapeutic strategies.Acute myocarditis on cardiac MRI

51 Feasibility of paediatric postoperative telemedicine in Nunavik

Abstract Background To access surgical care, Inuit children from Nunavik are relocated by plane to an urban tertiary hospital. Current processes that require an in-person follow-up appointment extend their stay away from home despite an overall low rate of postoperative complications. Telemedicine presents the opportunity to reduce this delay, but little is known about its feasibility for paediatric postoperative care in Nunavik. Objectives To determine the feasibility of paediatric postoperative telemedicine in Nunavik. Design/Methods In this mixed methods study using a convergent parallel design (August 2022 – May 2023), we recruited eleven healthcare providers who regularly interact with Inuit families of Nunavik. We conducted individual semi-structured in-depth interviews about postoperative care in this setting and analyzed the data thematically. In parallel, we conducted a narrative synthesis of the literature and gathered input from collaborators to assess the potential resources needed to enable postoperative telemedicine in the region. We then determined the capability for telemedicine in each of the fourteen villages of Nunavik using data provided by the regional health board. A meeting with specialists responsible for telemedicine in the region was held to discuss findings and future steps. We analyzed and compared qualitative and quantitative results to determine the degree of postoperative telemedicine readiness in the region. Results The main themes influencing the feasibility of telemedicine were general considerations for telemedicine use as a follow-up modality, patient characteristics most suitable for postoperative telemedicine, resources needed for telemedicine use as a follow-up modality, and the feasibility of postoperative telemedicine as determined by healthcare providers. All interviewees deemed paediatric postoperative telemedicine in this region feasible but highlighted conditions for its success. The narrative review uncovered limited literature on telemedicine use in Nunavik. As of January 2023, the two regional hospitals and three health centers had full capabilities for postoperative telemedicine. The nine other health centers had partial capabilities, mainly due to limited access to stable high-speed Internet and Internet bandwidth. Only regional hospitals had access to hospitalization, imaging, readaptation, and laboratory departments. The participating specialists deemed telemedicine feasible if patient load and burden of administrative work are manageable. Conclusion Postoperative paediatric telemedicine in Nunavik is feasible from a resource, healthcare providers and specialists standpoint. Leveraging centers with appropriate capacity would allow the increase in telemedicine usage in Nunavik. Next steps in this research program include interviews with families to evaluate their needs, preferences and attitudes toward postoperative paediatric telemedicine.

Primary Salivary Gland Malignancy: A Review on Post-Operative Follow-Up Duration and Radiological Modalities

Primary Salivary Gland Malignancy: A Review on Post-Operative Follow-Up Duration and Radiological Modalities

Improving post-injury follow-up survey response: incorporating automated modalities

BackgroundIncorporating post-discharge data into trauma registries would allow for better research on patient outcomes, including disparities in outcomes. This pilot study tested a follow-up data collection process to be incorporated into existing trauma care systems, prioritizing low-cost automated response modalities.MethodsThis investigation was part of a larger study that consisted of two protocols with two distinct cohorts of participants who experienced traumatic injury. Participants in both protocols were asked to provide phone, email, text, and mail contact information to complete follow-up surveys assessing patient-reported outcomes six months after injury. To increase follow-up response rates between protocol 1 and protocol 2, the study team modified the contact procedures for the protocol 2 cohort. Frequency distributions were utilized to report the frequency of follow-up response modalities and overall response rates in both protocols.ResultsA total of 178 individuals responded to the 6-month follow-up survey: 88 in protocol 1 and 90 in protocol 2. After implementing new follow-up contact procedures in protocol 2 that relied more heavily on the use of automated modalities (e.g., email and text messages), the response rate increased by 17.9 percentage points. The primary response modality shifted from phone (72.7%) in protocol 1 to the combination of email (47.8%) and text (14.4%) in protocol 2.ConclusionsResults from this investigation suggest that follow-up data can feasibly be collected from trauma patients. Use of automated follow-up methods holds promise to expand longitudinal data in the national trauma registry and broaden the understanding of disparities in patient experiences.

Preferences for Neurodevelopmental Follow-Up Care for Children: A Discrete Choice Experiment.

Identifying and addressing neurodevelopmental delays in children can be challenging for families and the healthcare system. Delays in accessing services and early interventions are common. The design and delivery of these services, and associated outcomes for children, may be improved if service provision aligns with families' needs and preferences for receiving care. The aim of this study is to identify families' preferences for neurodevelopmental follow-up care for children using an established methodology. We used a discrete choice experiment (DCE) to elicit families' preferences. We collected data from families and caregivers of children with neurodevelopmental needs. The DCE process included four stages. In stage 1, we identified attributes and levels to be included in the DCE using literature review, interviews, and expert advice. The finalised attributes were location, mode of follow-up, out-of-pocket cost per visit, mental health counselling for parents, receiving educational information, managing appointments, and waiting time. In stage 2, we generated choice tasks that contained two alternatives and a 'neither' option for respondents to choose from, using a Bayesian d-efficient design. These choice tasks were compiled in a survey that also included demographic questions. We conducted pre- and pilot tests to ensure the functionality of the survey and obtain priors. In stage 3, the DCE survey was administered online. We received 301 responses. In stage 4, the analysis was conducted using a latent class model. Additionally, we estimated the relative importance of attributes and performed a scenario analysis. Two latent classes were observed. More families with full-time employees, higher incomes, postgraduate degrees, and those living in metropolitan areas were in class 1 compared with class 2. Class 1 families preferred accessing local public health clinics, face-to-face follow-up, paying AUD100 to AUD500, mental health support, group educational activities, health service-initiated appointments, and waiting < 3 months. Class 2 families disliked city hospitals when compared with private, preferred paying AUD100 or no cost, and had similar preferences regarding mental health support and wait times as class 1. However, no significant differences were noted in follow-up modality, receiving educational information, and appointment management. The relative importance estimation suggested that location was most important for class 1 (28%), whereas for class 2, cost accounted for nearly half of the importance when selecting an alternative. The expected uptake of follow-up care, estimated under three different hypothetical scenarios, may increase by approximately 24% for class 2 if an 'ideal' scenario taking into account preferences was implemented. This study offers insights into aspects that may be prioritised by health services and policymakers to improve the design and delivery of neurodevelopmental follow-up care for children. The findings may enhance the organisation and functioning of existing care programmes; and therefore, improve the long-term outcomes of children with neurodevelopmental needs and their families.

Apparent Diffusion Coefficient in the Diagnosis and Follow-up of Multiple Sclerosis: Role of Magnetic Resonance Imaging

Background: Chronic Multiple Sclerosis (MS) modifies the apparent diffusion coefficient (ADC) value due to severe pathological changes. After trauma, it is the second most common cause of brain injury in healthy young adults. MRI is considered the initial imaging modality for MS diagnosis and follow-up. Objective: To assess the significance of the ADC in the diagnosis and follow-up of MS plaques across various disease subtypes. Methods: Forty MS patients were included in a case-control study at Ibn-Sina Teaching Hospital, Mosul Province, between June 1, 2022 and February 28, 2023. The patients had diffusion-weighted and traditional MR imaging with ADC measurement in plaques, and the normal white matter value of controls was compared to the patients' results. Results: The ADC values were higher in cases that were acute or secondary-progressive than in relapsing-remitting cases or normal white matter. In both types of newly generated plaques, there was an initial non-significant increase in ADC values compared to existing plaques. Overall, the ADC sensitivity, specificity, and accuracy in diagnosing MS were 85.7%, 95.2%, and 90.5% in acute cases, and 85.7%, 83.3%, and 84.6% in chronic cases, respectively, with no significant difference between active and inactive lesions. Conclusions: The apparent diffusion coefficient value can be included in the imaging protocol for the diagnosis and follow-up of various subtypes of MS.

Rationale and design of the French Observatory of Acute Heart Failure (OFICA2)

BackgroundAcute heart failure (AHF) is a leading cause of hospitalization and mortality – especially in patients aged≥65 years in high-income countries – and represents a high healthcare burden. In the past decade, the epidemiology and management of heart failure (HF) has changed, with the emergence of new medical and interventional therapeutics, but up-to-date real-life data are scarce. AimsThe main objectives are to describe baseline characteristics (with an emphasis on lifestyle, cognitive status, HF knowledge and treatment adherence), management, and in-hospital and mid-term outcomes of AHF patients in France. Secondary objectives are to investigate determinants of prognosis, modalities of treatment and follow-up, and identify gaps between guidelines and real-life management. MethodsOFICA2 is a prospective multicentre observational survey that enrolled 1513 patients hospitalized for AHF in 80 participating centres in France during March and April 2021. The diagnosis of AHF was made according to the European Society of Cardiology guidelines definition. Inclusion criteria were age≥18years, health coverage and consent to participate. Detailed information was collected prospectively starting at admission. Thanks to direct linking with the French National Health Database, the anteriority up to 2years before inclusion, as well as a 3-year follow-up is specified for each patient and includes individual information on death, hospital admissions, major clinical events, drug delivery and use of reimbursed health resources. ConclusionThis cohort provides a representative snapshot on contemporary AHF, with a particular focus on self-care determinants, and will improve knowledge about AHF presentation, management and outcomes.

Recurrent Urinary Stone Formers: Imaging Assessment and Endoscopic Treatment Strategies: A Systematic Search and Review.

Background/Objectives: Nephrolithiasis is a heterogeneous disease with a high prevalence and recurrence rate. Although there has been much progress regarding the surgical treatment of stones, a standardized follow-up, especially in recurrent stone formers (SFs), has yet to be decided. This fact leads to the overuse of computed tomography (CT) scans and many reoperations in patients, thus increasing their morbidity and the financial burden on the health systems. This review systematically searched the literature for original articles regarding imaging strategies and endoscopic treatment for patients with recurrent urolithiasis, aiming to identify optimal strategies to deal with these patients. Methods: We systematically searched the Medline database (accessed on 1 April 2024) for articles regarding imaging modalities and endoscopic treatment for patients with recurrent urinary tract lithiasis. Results: No specific follow-up or endoscopic treatment strategy exists for patients with recurrent urolithiasis. CT scan was the imaging modality most used in the studies, followed by X-ray, ultrasonography, and digital tomosynthesis. A transparent algorithm could not be identified. Percutaneous nephrolithotomy (PCNL), retrograde intrarenal surgery (RIRS), and ureteroscopy (URS) were used in the studies for endoscopic treatment. PCNL showed the best stone-free (SFr) rate and lowest hazard ratio (HR) for reoperation. RIRS showed superiority over extracorporeal shockwave lithotripsy for recurrent SFs, but fragments over 4 mm increased the recurrent rate. URS has an increased HR for reoperation for bilateral stones. Conclusions: The heterogeneity of urolithiasis leaves urologists without a standardized plan for recurrent SFs. Thus, each patient's follow-up should be planned individually and holistically. Pre-stenting is not to be avoided, especially in high-risk patients, and SFr status needs to be the aim. Finally, CT scans should not be generally overused but should be part of a patient's treatment plan. Prospective studies are required to define SFr status, the size of significant residual fragments, and the modalities of intervention and follow-up.

Dynamic renal scans as a modality for follow-up of flexible ureteroscopy.

To determine whether dynamic renal scans - DTPA or MAG3 - routinely performed after flexible ureteroscopies (f-URS) could detect the development of an obstruction and thus promote prompt early intervention for kidney preservation. In this retrospective study, with all the data recorded prospectively between April 2010 and October 2023, 250 renal units in 242 patients with upper urinary tract stones (UUTS) who underwent ureterorenoscopy by one surgeon in the same medical center were evaluated. Stone-free rate (SFR) was defined as no residual fragments at all using an intraoperative "triple test". The following characteristics were examined: gender, BMI, age, Hounsfield unit, stone diameter, laterality, renal/ureteral stones, stone-free rate, and auxiliary procedures per renal unit. The Clavien-Dindo classification was used to report complications. Renal units with residual stones were scheduled for a 2nd f-URS. Post- flexible ureteroscopy ureteral obstruction and renal function were detected using renal scan DTPA or MAG-3. The primary outcome was renal/ ureteral obstruction. The mean patient age was 53 years. The mean stone size was 12.3 mm. Stones in renal pelvis, upper, middle and lower calyces were treated in 9.2% (23), 27.6% (69), and 30.8% (77) of cases, respectively; 44% (110) ureteral stones were also treated. The single- and second-session SFRs were 94.8% and 99.7%, respectively. A third auxiliary procedure was needed in one renal unit (0.4%). The mean number of procedures per renal unit was 1.06 (264/250). Ureteral double-J stents were inserted in 53.6% (134) of the cases. In 37 (14.8%) cases, a stent was placed before surgery. Post-operative complications were minor, with readmission and pain control needed in only two patients (0.8%). No avulsion or perforation of the ureters was observed. In six patients with t1/2 between 10-20 minutes, a second renal scan revealed spontaneous improvement and no obstruction in five patients. One patient with large stones and a history of prior ureteroscopy developed a ureteral stricture (0.4%) and needed treatment with laser endoureterotomy. Post-flexible ureteroscopy obstruction due to ureteral stricture is very rare. A routine renal scan post-operatively may be used in potentially high-risk patients.

Rationale and design of the French cohort of acute myocarditis diagnosed by cardiac magnetic resonance imaging (MyocarditIRM)

BackgroundAcute myocarditis usually presents as chest pain with rising troponin and normal coronary arteries. Despite frequent favourable evolution at the acute phase, it is associated with heart failure and ventricular rhythm disorders, and is considered the leading cause of sudden cardiac death in young, apparently healthy, adults. There are no specific recommendations for acute myocarditis diagnosis and management, only expert consensus, given the lack of large databases. AimThe main objective is to describe the contemporary presentation of acute myocarditis, its management and in-hospital outcomes. Secondary objectives are to investigate survival and event-free survival for up to 10years of follow-up, the determinants of prognosis, the modalities of treatment and follow-up and the gaps between expert consensus and real-life management. MethodsMyocarditIRM is a prospective multicentre cohort that enrolled 803 consecutive patients with acute myocarditis in 49 participating centres in France between 01 May 2016 and 28 February 2019. The diagnosis of acute myocarditis was acknowledged by cardiac magnetic resonance, using the Lake Louise Criteria. Exclusion criteria were age<18years, lack of health coverage, contraindication to cardiac magnetic resonance and refusal to participate. Detailed information was collected prospectively, starting at admission. Cardiac magnetic resonance imaging (diagnosis and follow-up) is analysed centrally by the certified core laboratory IHU ICAN. Ten years of follow-up for each patient is ensured by linking with the French National Health Database, and includes information on death, hospital admissions, major clinical events and drug consumption. ConclusionThis prospective cohort with long-term follow-up represents the largest database on acute myocarditis worldwide, and will improve knowledge about its presentation, management and outcomes.

Forensic Aftercare Facilities and Their Impact on the Releasability of Persons Who Committed Sexual Offenses: A Three Group Comparison.

Partly due to a lack of release options for individuals who committed sexual offenses, forensic follow-up treatment has been strengthened latest since 2007. The current study investigates whether the foundation of a professionalized follow-up-treatment has actually improved release options for individuals who committed sexual offenses. Thus, the aim of the present study was to assess the difference in criminogenic needs and recidivism relevant characteristics (e.g., index offense, criminal history, psychiatric diagnoses and risk assessment) between three groups who had been released from forensic psychiatry at different times or under different outpatient follow-up modalities: (1) individuals released prior the foundation of professionalized follow-up-treatment, (2) individuals released after the foundation and received treatment, and (3) individuals released after the foundation but not receiving this special treatment. It was found that with the availability of professionalized forensic followup treatment, persons with higher scores in common risk assessment tools and a longer duration of implacement had been released. Indeed, this indicates an increased risk tolerance among decision makers. However, it was not those who were released after the foundation of the professionalized forensic follow-up treatment but without this specific treatment who showed the lowest initial risk, but those who were released prior to the foundation. Results are discussed in terms of possible explanations and methodological issues.

Echocardiographic Assessment of Recovered Patients with Mild COVID-19 Infection: A Case-Control Study.

Coronavirus disease 2019 (COVID-19) has been revealed as a severe illness with a wide-ranging cardiac manifestation and has a worldwide burden on the health-care system. Our aim in this study is to assess the impact of mild COVID-19 infection on cardiac function in patients without previous structural heart disease. We evaluated 100 outpatients with a history of mild COVID-19 infection without needing hospitalization within 3 weeks to 3 months after recovery from the acute phase of the illness between August 2020 and July 2021. The patients were compared with 105 healthy participants without a history of COVID-19 as the control group. All participants underwent comprehensive transthoracic echocardiography. Data were analyzed using IBM SPSS statistics 23. For all tests, P < 0.05 was defined as statistically significant. COVID-19 patients had higher global longitudinal strain (P = 0.001), systolic pulmonary artery pressure (P = 0.008), RV E' (P = 0.049), and RV A' (P = 0.003), while had lower septal tissue velocities (P = 0.01) and left ventricular ejection fraction (EF) (LVEF) (P = 0.03). Abnormal EF (LVEF <55%) was noted in 19% of the COVID-19 patients and 8.6% of the control group (P = 0.03). Moderate or more diastolic dysfunction was noted in 10 COVID-19 patients but only in one participant in the control group (P = 0.005). Mild COVID-19 infection can result in cardiac functional and structural changes, even in patients without known previous structural heart disease. Echocardiography can be a useful modality for risk assessment and follow-up in patients with COVID-19.

Prehabilitation through physical activity in oncology

It has now been established that preoperative physical activity plays an essential role in minimizing postoperative complications. Patients who have undergone physical preparation recover their preoperative abilities more quickly. However, only about a third of those with access to such preparation report an improvement in their physical abilities. The modalities of intervention and follow-up, such as the training load and the generic format of the proposed sessions, seem to hinder patient participation in these programs, thus explaining the mixed results. In this context, it seems necessary to individualize prehabilitation in order to improve the functional capacities of people in this phase or in the phase of accelerated recovery after treatment or surgery.

Predictors of Progression in a Series of 81 Adult Patients Surgically Managed for an Intracranial Hemangioblastoma: Implications for the Postoperative Follow-Up.

The aim was to identify predictors of progression in a series of patients managed for an intracranial hemangioblastoma, in order to guide the postoperative follow-up modalities. The characteristics of 81 patients managed for an intracranial hemangioblastoma between January 2000 and October 2022 were retrospectively analyzed. The mean age at diagnosis was of 48 ± 16 years. Eleven (14%) patients had von Hippel-Lindau disease. The most frequent tumor location was the cerebellar hemispheres (n = 51, 65%) and 11 (14%) patients had multicentric hemangioblastomas. A gross total resection was achieved in 75 (93%) patients. Eighteen (22%) patients had a local progression, with a median progression-free survival of 56 months 95% CI [1;240]. Eleven (14%) patients had a distant progression (new hemangioblastoma and/or growth of an already known hemangioblastoma). Local progression was more frequent in younger patients (39 ± 14 years vs. 51 ± 16 years; p = 0.005), and those with von Hippel-Lindau disease (n = 8, 44% vs. n = 3, 5%, p < 0.0001), multiple cerebral locations (n = 3, 17% vs. n = 2, 3%, p = 0.02), and partial tumoral resection (n = 4, 18% vs. n = 1, 2%, p = 0.0006). Therefore, it is advisable to propose a postoperative follow-up for at least 10 years, and longer if at least one predictor of progression is present.

Management of a recurrent spinal arachnoid cyst presenting as arachnoiditis in the setting of spontaneous spinal subarachnoid hemorrhage: illustrative case.

Spontaneous spinal subarachnoid hemorrhage is a rare pathological entity with a variety of presentations depending on the underlying etiology, which often remains cryptogenic. The literature is sparse regarding the most efficacious treatment or management option, and there is no consensus on follow-up time or modalities. Additionally, there are very few reports that include operative videos, which is provided herein. The authors present a case of spontaneous spinal subarachnoid hemorrhage without an underlying etiology in a patient with progressive myelopathy, back pain, and lower-extremity paresthesias. She presented to our institution, and because of progressive worsening of her symptoms and the development of compressive arachnoid cysts, she underwent thoracic laminectomies for evacuation of subdural fluid, fenestration of the arachnoid cysts, and lysis of significant arachnoid adhesions. Her clinical course was further complicated by the recurrence of worsening myelopathy and the development of a large compressive arachnoid cyst with further arachnoiditis. The patient underwent repeat surgical intervention for cyst decompression with an improvement in symptoms. This case highlights the importance of long-term follow-up for these complicated cases with an emphasis on repeat magnetic resonance imaging. Unfortunately, surgical intervention is associated with short-term relief of the symptoms and no significant nonoperative management is available for these patients.

Update on therapeutic approaches for invasive fungal infections in adults.

Invasive fungal infections are increasingly encountered with the expansion of iatrogenic immunosuppression, including not only solid organ and hematopoietic stem cell transplant recipients but also patients with malignancies or autoimmune diseases receiving immunomodulatory therapies, such as Bruton Tyrosine Kinase (BTK) inhibitor. Their attributable mortality remains elevated, part of which is a contribution from globally emerging resistance in both molds and yeasts. Because antifungal susceptibility test results are often unavailable or delayed, empiric and tailored antifungal approaches including choice of agent(s) and use of combination therapy are heterogeneous and often based on clinician experience with knowledge of host's net state of immunosuppression, prior antifungal exposure, antifungal side effects and interaction profile, clinical severity of disease including site(s) of infection and local resistance data. In this review, we aim to summarize previous recommendations and most recent literature on treatment of invasive mold and yeast infections in adults to guide optimal evidence-based therapeutic approaches. We review the recent data that support use of available antifungal agents, including the different triazoles that have now been studied in comparison to previously preferred agents. We discuss management of complex infections with specific emerging fungi such as Scedosporium spp., Fusarium spp., Trichosporon asahii, and Candida auris. We briefly explore newer antifungal agents or formulations that are now being investigated to overcome therapeutic pitfalls, including but not limited to olorofim, rezafungin, fosmanogepix, and encochleated Amphotericin B. We discuss the role of surgical resection or debridement, duration of treatment, follow-up modalities, and need for secondary prophylaxis, all of which remain challenging, especially in patients chronically immunocompromised or awaiting more immunosuppressive therapies.

Outcomes of coronary artery obstructions after the arterial switch operation for transposition of the great arteries

ObjectiveCoronary obstruction is a rare but common complication of the arterial switch operation for transposition of the great arteries. The majority of patients remain asymptomatic and no risk factors allow targeting for reinforced surveillance. We aim to review the natural history of patients diagnosed with coronary obstruction after arterial switch operation for transposition of the great arteries and occurrence of coronary-related outcomes. MethodsWe retrospectively reviewed medical records of the 102 patients diagnosed with coronary obstruction after arterial switch operation for transposition of the great arteries in our institution from 1981 to 2022. Outcomes were anti-ischemic treatment introduction, revascularization (surgical or percutaneous angioplasty), and death; investigations that motivated revascularization were also reviewed. ResultsTwenty-eight out of 102 patients presented with myocardial ischemia during the immediate postoperative phase, 31 were diagnosed when symptomatic, and 43 were identified at the presymptomatic stage, according to our screening policy in preschool-aged children. Stenosis-related event occurrence was, respectively, 29 out of 31 and 32 out of 43 in the latter 2 subgroups. Coronary-related mortality reached 10% in patients diagnosed when symptomatic; no patients died in the presymptomatic subgroup. Of the 28 low-risk patients with no signs of ischemia at diagnosis, 10 developed obstruction warranting reintervention during follow-up. Revascularization was motivated by appearance of symptoms in patients with severe stenosis in normal coronary dispositions, and by clinical symptoms or documented silent ischemia in abnormal coronary patterns. ConclusionsOccurrence of stenosis-related events remains significant in patients after arterial switch operation, underlining the importance of early diagnosis for timely intervention. Initial anatomical evaluation identifies stenotic and at-risk patients; this will require periodical function testing. Follow-up modalities can be tailored to a patient’s individual anatomic characteristics.

Comparison among three different follow-up models for obstructive sleep apnea syndrome patients: focus on the physiotherapist's role.

In obstructive sleep apnea syndrome (OSAS) subjects different follow-up modalities have been proposed to improve adherence to the continuous positive airway pressure (CPAP) device. This retrospective study compares three different health professional approaches dedicated to caring OSAS patients in three consecutive follow-up periods of 15 months each. The three different follow-up models are: i) physician-oriented follow-up (P-F); ii) physiotherapist-oriented follow-up (PT-F); and iii) tele-titration plus PT-oriented follow-up (TT-PT-F). Health personal visits and actions delivered, patients' adherence, CPAP efficacy, and problems under CPAP use were considered for comparison. Data from 122 OSAS patients with a new prescription of CPAP were analyzed: 39 (32.0%) in the P-F, 38 (31.1%) in the PT-F, and 45 (36.9%) in the TT-PT-F period. We found a reduction over time (from 40.9% in P-F to 8.2% in TT-PT-F, p<0.001) in patients missing the 1-year follow-up visit. The PT-F and TT-PT-F lead to a reduction in physician visits in comparison to P-F (5.2% and 8.9% vs 100%, p<0.001) with no differences in time to the first follow-up visit, CPAP efficacy, and patients' adherence among the three periods. More device-related problems were found in the PT-F (57.8%), compared with the PF (25.6%) period (p<0.001); the most common troubles were mask problems evaluated in 26.2% of cases. In conclusion, different follow-up models offer similar efficacy and short-term adherence for CPAP leading to a significant reduction in physician visits under the PT-F with or without tele-titration, being mask problems as the most commonly treated. Further analysis should be useful to define the best cost-efficacy follow-up intervention.

Dual-layer spectral computed tomography aortography using a seventy-five-percent-reduced iodine dose protocol and multiparameter spectral imaging: comparison with conventional computed tomography imaging.

Computed tomography angiography (CTA) is the recommended diagnostic and follow-up imaging modality for acute aortic dissection (AD). However, the high-contrast medium burden associated with repeated CT aortography follow-ups remains a significant concern. This prospective study aimed to assess whether an ultra-low contrast dose (75% cutoff) aortic CTA protocol on dual-layer spectral CT could achieve comparable image quality with the full dose protocol. We also investigated the image quality of the virtual noncontrast (VNC) images derived from the ultra-low dose protocol. This study included 37 consecutive patients who were referred to aortic CTA from May 2022 to August 2022. The enrolled patients underwent full-dose contrast CTA and ultra-low dose (reduced to 25% of conventional) contrast CTA on dual-layer spectral CT in 1 day. Virtual monochromatic images (VMIs) were reconstructed with 40 and 70 keV. The VNC images were reconstructed for both protocols. Objective image quality evaluation, recorded as signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs), was compared between the groups using 1-way analysis of variance and post hoc analysis with Bonferroni correction. Subjective image quality was also compared between the groups. Finally, VNC images derived from the low-dose (VNClow) and full-dose (VNCfull) protocols were compared to the true noncontrast (TNC) images. Neither CNR nor SNR was lower for the 40-keV images reconstructed from the ultra-low dose group compared to the conventional images. Both were significantly higher than those of the 70-keV images. Regarding subjective image quality, vessel enhancement was not significantly different between the 40-keV VMI and full-dose images [ascending aorta (AAO): 4.37±0.46 vs. 4.57±0.48, P=0.096; brachiocephalic arteries: 4.34±0.45 vs. 4.51±0.49, P=0.152; abdominal aortic side branch: 4.42±0.48 vs. 4.51±0.49, P=0.480]. The VNClow images were similar to the TNC images but significantly different from the VNCfull images (P<0.001). Ultra-low contrast aortic CTA with a 75%-reduced iodine dose using dual-layer spectral CT and the derived VNC achieved image quality comparable to that of conventional CTA and TNC images.

Alteration of the Exhaled Volatile Organic Compound Pattern in Colorectal Cancer Patients after Intentional Curative Surgery-A Prospective Pilot Study.

As current follow-up modalities for colorectal carcinoma (CRC) have restricted sensitivity, novel diagnostic tools are needed. The presence of CRC changes the endogenous metabolism, resulting in the release of a specific volatile organic compounds (VOC) pattern that can be detected with an electronic nose or AeonoseTM. To evaluate the use of an electronic nose in the follow-up of CRC, we studied the effect of curative surgery on the VOC pattern recognition using AeonoseTM. A prospective cohort study was performed, in which 47 patients diagnosed with CRC were included, all of whom underwent curative surgical resection. Breath testing was performed before and after surgery using the AeonoseTM. A machine learning model was developed by discerning between the 94 pre-and postoperative breath samples. The training model differentiated between the pre-and postoperative CRC breath samples with a sensitivity and specificity of 0.78 (95%CI 0.61-0.90) and 0.73 (95%CI 0.56-0.86), respectively, with an accuracy of 0.76 (95%CI 0.66-0.85), and an area under the curve of 0.79 (95%CI 0.68-0.89). The internal validation of the test set resulted in an accuracy of 0.75 (95%CI 0.51-0.91) and AUC of 0.82 (95%CI 0.61-1). In conclusion, our results suggest that the VOC pattern of CRC patients is altered by curative surgery in a short period, indicating that the exhaled VOCs might be closely related to the presence of CRC. However, to use AeonoseTM as a potential diagnostic tool in the clinical follow-up of CRC patients, the performance of the models needs to be improved through further large-scale prospective research.