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  1. Article ; Online: Covered stent assisted coil embolization of large Buhler aneurysm in setting of chronic celiac trunk occlusion.

    Quaretti, Pietro / Corti, Riccardo / D'Agostino, Antonio Mauro / Bozzani, Antonio / Moramarco, Lorenzo Paolo / Cionfoli, Nicola

    CVIR endovascular

    2024  Volume 7, Issue 1, Page(s) 9

    Abstract: Background: The arc of Bühler (AOB) is a residual embryonal anastomosis between the celiac artery (CA) and the superior mesenteric artery (SMA). Although usually asymptomatic, it has clinical relevance when compensatory reverse flow between the SMA and ... ...

    Abstract Background: The arc of Bühler (AOB) is a residual embryonal anastomosis between the celiac artery (CA) and the superior mesenteric artery (SMA). Although usually asymptomatic, it has clinical relevance when compensatory reverse flow between the SMA and the CA in response to celiac artery obstruction leads to aneurysm formation and bleeding. Endovascular coiling is the mainstay therapy because of the deep AOB retropancreatic location, which hinders open surgery.
    Case presentation: We herein report a case of a 2.8-cm AOB saccular aneurysm and LAM compression of celiac trunk in a 47-year-old man during rehabilitation following motorcycle trauma and vertebral surgery. The patient was considered unsuitable for surgery. Neither conventional coiling nor bare-metal stent and balloon-assisted techniques for coiling were suitable because of the wide necked saccular shape of AOB aneurysm interposed between the SMA and the floor of celiac trunk. To exclude the aneurysm from direct SMA inflow and permit safe and efficient coiling to rule out retrograde sac perfusion, a 9-mm polytetrafluoroethylene stent graft (Viabahn; Gore, Phoenix, AZ, USA) was positioned in the mesenteric artery, followed by antegrade periprosthetic high-density packed coiling of the aneurysm. The AOB remained excluded from mesenteric perfusion. The patient's clinical condition and abdominal contrast-enhanced multislice computed tomographic findings were unremarkable at the 9-year follow-up.
    Conclusion: The 9 year long-term efficacy in our case raises the possibility that perigraft coiling following stent-graft deployment in the SMA may represent a valuable technical option for large Bühler aneurysms that are not amenable to stand-alone coiling.
    Language English
    Publishing date 2024-01-10
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2520-8934
    ISSN (online) 2520-8934
    DOI 10.1186/s42155-023-00416-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: U-bent Viabahn stent graft in the main left pulmonary artery in a hemodialysis patient after asymptomatic migration: Percutaneous removal and technical considerations.

    Quaretti, Pietro / Corti, Riccardo / D'Agostino, Antonio Mauro / Cionfoli, Nicola

    The journal of vascular access

    2023  , Page(s) 11297298231158545

    Abstract: Background: Stent grafts (SG) have gained the highest level of evidence for superior management over angioplasty of arteriovenous graft (AVG) venous outflow stenosis, which increases their use in hemodialysis patients. Migration to the heart and lungs ... ...

    Abstract Background: Stent grafts (SG) have gained the highest level of evidence for superior management over angioplasty of arteriovenous graft (AVG) venous outflow stenosis, which increases their use in hemodialysis patients. Migration to the heart and lungs is the most feared complication of SG of the venous system.
    Method: We present a previously unreported case of asymptomatic migration of a 10-cm-long Viabahn lodged in a U-shaped configuration in the main left pulmonary artery after AVG intervention in a 50 year old male hemodialysis patient.
    Results: Through a single femoral access percutaneous retrieval of migrated SG was accomplished. Technique of coaxial buddy snaring technique is described.
    Conclusion: Our technique may expand the endovascular likelihood of successful stent removal.
    Language English
    Publishing date 2023-07-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2252820-9
    ISSN 1724-6032 ; 1129-7298
    ISSN (online) 1724-6032
    ISSN 1129-7298
    DOI 10.1177/11297298231158545
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Re: "The Impact of Degenerative Connective Tissue Disorders on Outcomes Following Endovascular Aortic Intervention in the Global Registry for Endovascular Aortic Treatment".

    Bozzani, Antonio / Arici, Vittorio / Ragni, Franco / Sterpetti, Antonio V / Quaretti, Pietro / Arbustini, Eloisa

    Annals of vascular surgery

    2022  Volume 83, Page(s) e3–e4

    MeSH term(s) Aortic Aneurysm, Thoracic/surgery ; Blood Vessel Prosthesis Implantation/adverse effects ; Connective Tissue ; Endovascular Procedures/adverse effects ; Humans ; Registries ; Risk Factors ; Treatment Outcome
    Language English
    Publishing date 2022-03-23
    Publishing country Netherlands
    Document type Letter ; Comment
    ZDB-ID 1027366-9
    ISSN 1615-5947 ; 0890-5096
    ISSN (online) 1615-5947
    ISSN 0890-5096
    DOI 10.1016/j.avsg.2022.03.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: The Role of Cholangioscopy in Biliary Diseases.

    Mauro, Aurelio / Mazza, Stefano / Scalvini, Davide / Lusetti, Francesca / Bardone, Marco / Quaretti, Pietro / Cobianchi, Lorenzo / Anderloni, Andrea

    Diagnostics (Basel, Switzerland)

    2023  Volume 13, Issue 18

    Abstract: Endoscopy plays a central role in diagnostic and therapeutic approaches to biliary disease in both benign and malignant conditions. A cholangioscope is an endoscopic instrument that allows for the direct exploration of the biliary tree. Over the years, ... ...

    Abstract Endoscopy plays a central role in diagnostic and therapeutic approaches to biliary disease in both benign and malignant conditions. A cholangioscope is an endoscopic instrument that allows for the direct exploration of the biliary tree. Over the years, technology has improved endoscopic image quality and allowed for the development of an operative procedure that can be performed during cholangioscopy. Different types of instruments are available in this context, and they can be used in different anatomical access points according to the most appropriate clinical indication. The direct visualization of biliary mucosa is essential in the presence of biliary strictures of unknown significance, allowing for the appropriate allocation of patients to surgery or conservative treatments. Cholangioscopy has demonstrated excellent performance in discriminating malignant conditions (such as colangiocarcinoma) from benign inflammatory strictures, and more recent advances (e.g., artificial intelligence and confocal laser endomicroscopy) could further increase its diagnostic accuracy. Cholangioscopy also plays a primary role in the treatment of benign conditions such as difficult bile stones (DBSs). In this case, it may not be possible to achieve complete biliary drainage using standard ERCP. Therapeutic cholangioscopy-guided lithotripsy allows for stone fragmentation and complete biliary drainage. Indeed, other complex clinical situations, such as patients with intra-hepatic lithiasis and patients with an altered anatomy, could benefit from the therapeutic role of cholangioscopy. The aim of the present review is to explore the most recent diagnostic and therapeutic advances in the roles of cholangioscopy in the management of biliary diseases.
    Language English
    Publishing date 2023-09-13
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2662336-5
    ISSN 2075-4418
    ISSN 2075-4418
    DOI 10.3390/diagnostics13182933
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Testicular artery originating from the inferior mesenteric artery: an alert for interventionalists - A case report.

    Messana, Gaia / Ambrosi, Ludovico / Moramarco, Lorenzo Paolo / Cionfoli, Nicola / Maestri, Marcello / Quaretti, Pietro

    Radiology case reports

    2021  Volume 16, Issue 9, Page(s) 2710–2713

    Abstract: Testicular arteries usually arise from the abdominal aorta. During an elective embolization of superior rectal arteries for hemorrhoidal disease performed in a 52-year-old male patient, a previously unreported vascular variant was identified. On ... ...

    Abstract Testicular arteries usually arise from the abdominal aorta. During an elective embolization of superior rectal arteries for hemorrhoidal disease performed in a 52-year-old male patient, a previously unreported vascular variant was identified. On selective angiography, the inferior mesenteric artery split into left colic artery and left testicular artery, without any evidence of vascular supply to the hemorrhoidal cushions. Superior rectal arteries were embolized after catheterization of the median sacral artery. A thorough knowledge of vascular variations is essential for interventional radiologists in order to recognize them and avoid potential complications.
    Language English
    Publishing date 2021-07-16
    Publishing country Netherlands
    Document type Case Reports
    ZDB-ID 2406300-9
    ISSN 1930-0433
    ISSN 1930-0433
    DOI 10.1016/j.radcr.2021.06.059
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: The infection risk after transjugular intrahepatic portosystemic shunt: A multiple competing risk analysis from a tertiary care center.

    Colaneri, Marta / Lombardi, Andrea / Maffezzoni, Marcello / Sambo, Margherita / Fabbiani, Massimiliano / Quaretti, Pietro / Asperges, Erika / Moramarco, Lorenzo / Sacchi, Paolo / Bruno, Raffaele

    Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver

    2022  Volume 54, Issue 12, Page(s) 1686–1690

    Abstract: Background: Infections following transjugular intrahepatic portosystemic shunt (TIPS) placement have been poorly described. We aim to investigate the rate and the potential predictors of infections occurring after TIPS placement.: Methods: Single ... ...

    Abstract Background: Infections following transjugular intrahepatic portosystemic shunt (TIPS) placement have been poorly described. We aim to investigate the rate and the potential predictors of infections occurring after TIPS placement.
    Methods: Single center, retrospective, observational study. All patients who had undergone TIPS placement in the last 10 years with a minimum 1-year FU, were considered. Multiple competing risk analyses were performed to identify infection risk factors and a multivariable Cox proportional-hazard regression model to evaluate the predictors of death.
    Results: Forty-nine patients were considered. Among these, 23 (46%) developed at least 1 infection during the FU, at a median time of 237.7 days (IQR 151.5) from the TIPS placement. We did not find any predictor of infection, while MELD score and cancer were associated with death (p = .04; HR 1.14; CI 1.00- 1.30).
    Conclusion: We found a high rate of all-type infections during the FU times. However, most of these infections occurred as late-onset infections and were caused by Gram-positive microorganisms. Thus, TIPS procedure itself does not seem to be burdened with high infectious perioperative risk.
    MeSH term(s) Humans ; Portasystemic Shunt, Transjugular Intrahepatic/adverse effects ; Portasystemic Shunt, Transjugular Intrahepatic/methods ; Retrospective Studies ; Tertiary Care Centers ; Proportional Hazards Models ; Risk Assessment ; Treatment Outcome
    Language English
    Publishing date 2022-06-11
    Publishing country Netherlands
    Document type Observational Study ; Journal Article
    ZDB-ID 1459373-7
    ISSN 1878-3562 ; 1125-8055
    ISSN (online) 1878-3562
    ISSN 1125-8055
    DOI 10.1016/j.dld.2022.05.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Durability of Stent-Grafts for Radiocephalic Fistulas.

    Quaretti, Pietro / Cionfoli, Nicola / Moramarco, Lorenzo Paolo / Leati, Giovanni / Corti, Riccardo

    Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists

    2019  Volume 26, Issue 6, Page(s) 887

    MeSH term(s) Alloys ; Arteriovenous Fistula ; Arteriovenous Shunt, Surgical ; Constriction, Pathologic ; Humans ; Stents ; Treatment Outcome ; Vascular Patency
    Chemical Substances Alloys ; nitinol (2EWL73IJ7F)
    Language English
    Publishing date 2019-11-18
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 2006618-1
    ISSN 1545-1550 ; 1526-6028
    ISSN (online) 1545-1550
    ISSN 1526-6028
    DOI 10.1177/1526602819875486
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Transjugular Balloon-Assisted Retrograde Ethylene-Vinyl Alcohol Copolymer Embolization of a Main Pulmonary Artery Defect Discovered during Removal of a Malpositioned Dialytic Central Venous Catheter.

    Quaretti, Pietro / Cionfoli, Nicola / Moramarco, Lorenzo Paolo / Corti, Riccardo / Togni, Giorgio

    Journal of vascular and interventional radiology : JVIR

    2019  Volume 30, Issue 5, Page(s) 742–743

    MeSH term(s) Aged, 80 and over ; Catheterization, Central Venous/instrumentation ; Catheters, Indwelling ; Central Venous Catheters ; Device Removal/adverse effects ; Embolization, Therapeutic ; Humans ; Male ; Polyvinyls/administration & dosage ; Pulmonary Artery/diagnostic imaging ; Pulmonary Artery/injuries ; Renal Dialysis ; Treatment Outcome ; Vascular System Injuries/diagnostic imaging ; Vascular System Injuries/etiology ; Vascular System Injuries/therapy
    Chemical Substances Polyvinyls ; ethylene-vinyl alcohol copolymer (25067-34-9)
    Language English
    Publishing date 2019-04-27
    Publishing country United States
    Document type Case Reports ; Video-Audio Media
    ZDB-ID 1137756-2
    ISSN 1535-7732 ; 1051-0443
    ISSN (online) 1535-7732
    ISSN 1051-0443
    DOI 10.1016/j.jvir.2018.11.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: The combined use of stent retriever and neuro-aspiration as successful bail-out reperfusion strategy in a patient with embolic myocardial infarction.

    Crimi, Gabriele / Moramarco, Lorenzo / Mandurino-Mirizzi, Alessandro / Quaretti, Pietro / Ferrario, Maurizio

    Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions

    2019  Volume 94, Issue 2, Page(s) E78–E81

    Abstract: Embolic myocardial infarction account for ≈3% of all ST-segment myocardial infarction and represents a challenge often left no-reperfused because current thrombectomy technologies are inefficient to grab thrombus wedged into distal coronary arteries. We ... ...

    Abstract Embolic myocardial infarction account for ≈3% of all ST-segment myocardial infarction and represents a challenge often left no-reperfused because current thrombectomy technologies are inefficient to grab thrombus wedged into distal coronary arteries. We present the case of a 34-year-old man who presented with anterior STEMI and a proximal left anterior descending coronary artery ulcerated plaque with a great thrombus burden, which led to distal embolization. Failure of several attempts of manual and rheolytic thrombectomy, led us to use the "Solumbra technique", the combined use of stent retriever and Penumbra catheter was successful in restoring patency and flow.
    MeSH term(s) Adult ; Anterior Wall Myocardial Infarction/diagnostic imaging ; Anterior Wall Myocardial Infarction/etiology ; Anterior Wall Myocardial Infarction/physiopathology ; Anterior Wall Myocardial Infarction/therapy ; Cardiac Catheterization/instrumentation ; Cardiac Catheters ; Coronary Thrombosis/complications ; Coronary Thrombosis/diagnostic imaging ; Coronary Thrombosis/physiopathology ; Coronary Thrombosis/therapy ; Embolism/diagnostic imaging ; Embolism/etiology ; Embolism/physiopathology ; Embolism/therapy ; Humans ; Male ; ST Elevation Myocardial Infarction/diagnostic imaging ; ST Elevation Myocardial Infarction/etiology ; ST Elevation Myocardial Infarction/physiopathology ; ST Elevation Myocardial Infarction/therapy ; Stents ; Suction ; Thrombectomy/instrumentation ; Treatment Outcome ; Vascular Patency
    Language English
    Publishing date 2019-03-09
    Publishing country United States
    Document type Case Reports ; Video-Audio Media
    ZDB-ID 1459995-8
    ISSN 1522-726X ; 1522-1946
    ISSN (online) 1522-726X
    ISSN 1522-1946
    DOI 10.1002/ccd.28167
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  10. Article: Green Tattoo Pre-Operative Renal Embolization for Robotic-Assisted and Laparoscopic Partial Nephrectomy: A Practical Proof of a New Technique.

    Faiella, Eliodoro / Calabrese, Alessandro / Santucci, Domiziana / Corti, Riccardo / Cionfoli, Nicola / Pusceddu, Claudio / de Felice, Carlo / Bozzini, Giorgio / Mazzoleni, Federica / Muraca, Rosa Maria / Moramarco, Lorenzo Paolo / Venturini, Massimo / Quaretti, Pietro

    Journal of clinical medicine

    2022  Volume 11, Issue 22

    Abstract: 1) Background: Our aim is to describe a new mixed indocyanine-non-adhesive liquid embolic agent (Onyx-18) pre-operative renal embolization technique for assisted-robotic and laparoscopic partial nephrectomy with near-infra-red fluorescence imaging. (2) ... ...

    Abstract (1) Background: Our aim is to describe a new mixed indocyanine-non-adhesive liquid embolic agent (Onyx-18) pre-operative renal embolization technique for assisted-robotic and laparoscopic partial nephrectomy with near-infra-red fluorescence imaging. (2) Methods: Thirteen patients with biopsy-proven renal tumors underwent pre-operative mixed indocyanine-ethylene vinyl alcohol (EVOH) embolization (Green-embo) between June 2021 and August 2022. All pre-operative embolizations were performed with a super selective stop-flow technique using a balloon microcatheter to deliver an indocyanine-EVOH mixture into tertiary order arterial branch feeders and the intra-lesional vascular supply. Efficacy (evaluated as complete embolization, correct tumor mapping on infra-red fluorescence imaging and clamp-off surgery) and safety (evaluated as complication rate and functional outcomes) were primary goals. Clinical and pathological data were also collected. (3) Results: Two male and eleven female patients (mean age 72 years) received pre-operative Green-embo. The median tumor size was 29 mm (range 15-50 mm). Histopathology identified renal cell carcinoma (RCC) in 9 of the 13 (69%) patients, oncocytoma in 3 of the 13 (23%) patients and sarcomatoid RCC in 1 of the 13 (8%) patients. Lesions were equally distributed between polar, meso-renal, endo- and exophytic locations. Complete embolization was achieved in all the procedures. A correct green mapping was identified during all infra-red fluorescence imaging. All patients were discharged on the second day after the surgery. The median blood loss was 145 cc (10-300 cc). No significant differences were observed in serum creatinine levels before and after the embolization procedures. (4) Conclusions: The Green-tattoo technique based on a mixed indocyanine-non-adhesive liquid embolic agent (Onyx-18) is a safe and effective pre-operative embolization technique. The main advantages are the excellent lesion mapping for fluorescence imaging, reduction in surgical time, and definitive, complete and immediate tumor devascularization based on the deep Onyx-18 penetration, leading to a very low intra-operative blood loss.
    Language English
    Publishing date 2022-11-18
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662592-1
    ISSN 2077-0383
    ISSN 2077-0383
    DOI 10.3390/jcm11226816
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