Effectiveness and Safety of Different Vascular Closure Devices: Multicentre Prospective Observational study.

AIM: The aim of this prospective, multicentre, observational study was to compare the efficacy and safety of balloon-based and non-balloon-based vascular closure devices (VCDs). MATERIALS AND METHODS: From March 2021 to May 2022, 2373 participants from 10 different centres were enrolled. Among them, 1672 patients with 5-7 Fr accesses were selected. Successful haemostasis, failure and safety were evaluated. Successful haemostasis was defined as the possibility to obtain complete haemostasis with the use of VCDs, without any complication. Failure management was defined as the need of manual compression. Safety was defined as the rate of complications. Cases of haematomas/pseudoaneurysms (PSA) and artero-venous fistula (AVF) were collected. RESULTS: VCDs mechanism of action is statistically significant associated with the outcome. Non-balloon-based VCDs demonstrated a statistically significant better outcome: successful haemostasis was obtained in 96.5% vs. 85.9%, of cases when compared to balloon occluders (p < 0.001). The incidence of AVF was statistically more frequent using non-balloon occluders devices (1.57% vs 0%, p: 0.007). No significant statistical difference was found in comparing haematoma and PSA occurrence. Thrombocytopenia, coagulation deficit, BMI, diabetes mellitus and anti-coagulation were demonstrated to be independent predictors of failure management. CONCLUSION: Our study suggests a better outcome with the same complication rate, except that for AVF incidence for non-balloon collagen plug device if compared to balloon occluders vascular closure devices.

Endovascular treatment of cesarean scar pregnancy: a retrospective multicentric study.

PURPOSE: To assess the role of Uterine Artery Embolization (UAE) to treat cesarean scar pregnancy (CSP) using different embolic materials, focusing on its clinical and technical success rates; the association of UAE with methotrexate (MTX) and/or dilatation & curettage (D&C) was evaluated also. MATERIALS AND METHODS: A retrospective analysis 33 patients (mean age 35 years) affected by CSP and treated with UAE from March 2012 to 2020 was performed. Dynamic levels of serum ß-HCG have been collected until they decreased to normal values after procedures. For the statistical analysis the sample was divided into 2 groups: UAE versus UAE + MTX. RESULTS: The gestational sac age ranged between 5 and 13 weeks (mean 7 weeks). According to operator's preference, 11 patients (33.33%) were treated with sponge injection, 2 patients (6.06%) with a combination of sponge and microsphere the remaining 20 patients (60.60%) with microspheres alone. No major complications occurred after UAE and D&C, neither side effects related to the MTX administration. Technical and clinical success rates were 97% and 85%, respectively. Mean percentage of ß-HCG reduction was 90% (range - 99.92 to + 7.98%). Statistical analysis with linear regression shows a R2 value of 0.9624 in UAE group while a R2 value of 0.9440 in UAE + MTX group with statistical significance (p < 0.0001). No significative differences were found between the two groups about clinical success rate and embolic material adopted. CONCLUSION: In this series UAE has been found to be safe and effective for the treatment of CSP.

Complex central venous catheter for dialysis: interventional radiology experience in insertion and management of their complications.

BACKGROUND: CVCs are defined 'complex' when they are inserted through non-conventional accesses or positioned in non-usual sites or substituted by IR endovascular procedures. We report our experience in using diagnostic and interventional radiology techniques for complex CVC insertion and management; we recommend some precautions and techniques that could lead to long-term availability of central venous access and to avoid non-conventional sites CVC insertion. METHODS: We retrospectively evaluated 617 patients, between January 2010 and December 2019, (mean age 71 ± 13; male 448/617), treated in our department for insertion of tunnelled CVC for haemodialysis. RESULTS: Among 617 patients, 241 cases (39%) are considered 'complex' because they required either a PTA with or without stenting to restore/maintain venous access or had an unusual positioning site or required unconventional access. A direct correlation between CT angiography and PTA (r = 0.95; p-value <0.001) and an inverse correlation between CT angiography and unconventional 'rescue' access (r = -0.92; p-value <0.001) were found. CONCLUSIONS: Precise pre-operative planning of treatment in a multidisciplinary setting and diagnostic and interventional radiology procedures knowledge allows reducing complex catheterisms in haemodialysis patient.

IVC filter retrieval: a multicenter proposal of two score systems to predict application of complex technique and procedural outcome.

PURPOSE: Aim of this study was to identify preprocedural parameters, which may predict the application of a complex IVC filter retrieval technique and estimate the procedural outcome by applying two dedicated score systems. MATERIALS AND METHODS: In this retrospective multicenter analysis, data concerning patient, filter and procedure characteristics were retrieved from January 2018 to March 2020. Patients were evaluated according to the retrieval technique (standard vs. complex) and the procedural outcome (success vs. failure). Significant differences among these groups were evaluated, and two score systems were developed to predict the application of a complex retrieval technique and the procedural outcome. RESULTS: One hundred and sixteen IVC filters were retrieved in 116 patients. In 98 subjects, the filter was retrieved with a standard procedure (Standard group, 84.5% vs. Complex group, 15.5%), while in 106 patients the procedure was successful (Success group, 91.4% vs. Failure group, 8.6%). Statistically significant differences were noted in terms of embedded filter hook, filter apex tilt, angle between filter axis and IVC, caval wall penetration, dwelling time and procedural time. Two score 0-5 points to predict the need for a complex retrieval technique and the procedural outcome were developed, with a prognostic accuracy of 88.8% and 91.4%, respectively. CONCLUSION: Significant differences were appreciable analyzing the sample data comparing both the retrieval technique applied and the procedural outcome. Two predictive scores were developed to assess the need for applying a complex retrieval technique and to estimate the procedural outcome.

Gynecological Malignancies: Bail-Out Interventional Radiology Treatments.

Interventional radiology presents nowadays a relevant role in the management of gynecological malignancies, especially in advanced stages where conventional surgery may be contraindicated. Progression to multiorgan failure may be related to cancer disease extension or, more acutely, to concomitant infections, bleedings or thromboembolic complications. Infiltration of adjacent organs, as ureters and biliary ducts, ascites and pelvic collections often occur in advanced stages: considering the clinical fragility of these patients, percutaneous procedures are frequently applied. Regarding hemorrhagic complications, bleeding may occur into the tumor itself, due to cancer tissue erosion and vessels infiltration, or may be related to iatrogenic vascular lesions consequent to surgery, mini-invasive procedures and chemoradiotherapy; embolization represents a bail-out treatment in both acute and chronic scenarios. Aim of this paper is to review interventional radiology procedures in patients affected by gynecological malignancies in advanced stages not suitable for surgery.

Treatment of juxta-anastomotic stenoses for failing distal radiocephalic arteriovenous fistulas: Drug-coated balloons versus angioplasty.

The aim of our study is to report the results of two types (type A, type B) paclitaxel drug-coated balloon compared with standard percutaneous transluminal angioplasty in the treatment of juxta-anastomotic stenoses of mature but failing distal radiocephalic hemodialysis arteriovenous fistulas. Two groups of 26 and 44 patients treated with two different drug-coated balloon are compared with a control group of 86 treated with standard percutaneous transluminal angioplasty. A color Doppler ultrasound was performed to evaluate stenosis and for treatment planning. We assess primary patency, defined as the absence of dysfunction of the arteriovenous fistulas, patent lesion or residual stenosis < 30% and no need for further reintervention of target lesion. Primary patency and secondary patency are evaluated after 12 months with color Doppler ultrasound for the whole arteriovenous fistulas, defined as absolute (absolute primary patency, absolute secondary patency) and target lesion. Postprocedural technical and clinical success was 100%. After 12 months, absolute primary patency is 81.8% for type A, 84.1% type B, and 54.7% for standard percutaneous transluminal angioplasty; target lesion primary patency is 92% type A, 86.4% type B, and 62.8% standard percutaneous transluminal angioplasty; absolute secondary patency is 95.4% type A, 95.5% type B, and 80.7% standard percutaneous transluminal angioplasty; target lesion secondary patency is 100% type A, 97.7% type B, and 80.7% standard percutaneous transluminal angioplasty. All the patients treated with drug-coated balloon (type A + type B) have an absolute primary patency of 83.3%, a target lesion primary patency of 87.9%, an absolute secondary patency of 95.5%, and a target lesion secondary patency of 98.4%. Our study confirms that the use of drug-coated balloon, indiscriminately among different brands, improves primary patency with statistically significant difference in comparison with standard percutaneous transluminal angioplasty and decreases reintervention of target lesion in juxta-anastomotic stenoses of failing distal arteriovenous fistulas maintaining the radiocephalic fistula as long as possible.

[Drug-induced diffuse infiltrative pneumopathies]. / Pneumopatie infiltrative diffuse da farmaci.

Drug-induced diffuse infiltrative pneumopathies (DIP) represent an important chapter of respiratory diseases. More than 350 drugs have been described to be potentially pneumo-toxic and the list is constantly increasing. As for other forms of DIP, also for drug-induced lung injury a multidisciplinary approach within pulmonologist, radiologist and pathologist is essential for the better diagnostic accuracy. In this review, clinical-radiological-pathological-therapeutic aspects of the drugs which are more likely to induce DIP in the clinical practice are described.

Noninvasive versus conventional ventilation to treat hypercapnic encephalopathy in chronic obstructive pulmonary disease.

OBJECTIVE: We recently reported a high success rate using noninvasive positive pressure ventilation (NPPV) to treat COPD exacerbations with hypercapnic encephalopathy. This study compared the hospital outcomes of NPPV vs. conventional mechanical ventilation (CMV) in COPD exacerbations with moderate to severe hypercapnic encephalopathy, defined by a Kelly score of 3 or higher. DESIGN AND SETTING: A 3-year prospective matched case-control study in a respiratory semi-intensive care unit (RSICU) and intensive care unit (ICU). PATIENTS AND PARTICIPANTS: From 103 consecutive patients the study included 20 undergoing NPPV and 20 CMV, matched for age, simplified acute physiology score II, and baseline arterial blood gases. MEASUREMENTS AND RESULTS: ABG significantly improved in both groups after 2 h. The rate of complications was lower in the NPPV group than in the CMV group due to fewer cases of nosocomial pneumonia and sepsis. In-hospital mortality, 1-year mortality, and tracheostomy rates were similar in the two groups. Fewer patients remained on ventilation after 30 days in NPPV group. The NPPV group showed a shorter duration of ventilation. CONCLUSIONS: In COPD exacerbations with moderate to severe hypercapnic encephalopathy, the use of NPPV performed by an experienced team compared to CMV leads to similar short and long-term survivals with a reduced nosocomial infection rate and duration of ventilation.

Noninvasive positive pressure ventilation in patients with acute exacerbations of COPD and varying levels of consciousness.

STUDY OBJECTIVES: A severely altered level of consciousness (ALC) has been considered a contraindication to noninvasive positive pressure ventilation (NPPV). We compared the clinical outcome of patients with acute respiratory failure (ARF) due to COPD exacerbations and different degrees of ALC. DESIGN: A 5-year case-control study with a prospective data collection. SETTING: Respiratory Monitoring Unit. PATIENTS: Eighty of 153 consecutive COPD patients requiring NPPV for ARF were divided into four groups, which were carefully matched for the main physiologic variables, according to the level of consciousness assessed with the Kelly-Matthay Score, in which 1 is normal (control subjects) and 6 is severely impaired. MEASUREMENT AND RESULTS: Changes from baseline in arterial blood gas (ABG) levels and Kelly score, the rate and causes of NPPV failure, the rate of nosocomial pneumonia, and the 90-day mortality rate were compared. NPPV significantly improved ABG levels and Kelly score in all groups after 1 to 2 h. NPPV failure (Kelly score 1 = 15%; Kelly score 2 = 25%; Kelly score 3 = 30%; Kelly score > 3 = 45%) and 90-day mortality rate (Kelly score 1 = 20%; Kelly score 2 = 35%; Kelly score 3 = 35%; Kelly score > 3 = 50%) significantly increased with the worsening of the level of consciousness. Using a multivariate analysis, the acute nonrespiratory component of the acute physiology and chronic health evaluation (APACHE) III score, and baseline pH independently predicted baseline Kelly score. After 1 to 2 h of NPPV, changes in the Kelly score were associated with those in pH. No correlation was found with Pa(CO2). CONCLUSIONS: This study confirms that NPPV may be successfully applied to patients experiencing COPD exacerbations with milder ALCs, whereas the rate of failure in patients with severely ALCs (ie, Kelly score > 3) is higher, even though better than expected, so that an initial and cautious attempt with NPPV may be performed even in this latter group. Changes in the level of consciousness induced by NPPV are not correlated with those in Pa(CO2).