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Liver-Directed Therapy for Neuroendocrine Metastases: From Interventional Radiology to Nuclear Medicine Procedures.

ABSTRACT: Neuroendocrine neoplasms (NENs) are rare and heterogeneous epithelial tumors most commonly arising from the gastroenteropancreatic (GEP) system. GEP-NENs account for approximately 60% of all NENs, and the small intestine and pancreas represent two most common sites of primary tumor development. Approximately 80% of metastatic patients have secondary liver lesions, and in approximately 50% of patients, the liver is the only metastatic site. The therapeutic strategy depends on the degree of hepatic metastatic invasion, ranging from liver surgery or percutaneous ablation to palliative treatments to reduce both tumor volume and secretion. In patients with grade 1 and 2 NENs, locoregional nonsurgical treatments of liver metastases mainly include percutaneous ablation and endovascular treatments, targeting few or multiple hepatic metastases, respectively. In the present work, we provide a narrative review of the current knowledge on liver-directed therapy for metastasis treatment, including both interventional radiology procedures and nuclear medicine options in NEN patients, taking into account the patient clinical context and both the strengths and limitations of each modality.

SUBMITTER: Cazzato RL

PROVIDER: S-EPMC8699378 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:ObjectiveTo characterize use of uterine tamponade and interventional radiology procedures.MethodsThis retrospective study analyzed uterine tamponade and interventional radiology procedures in a large administrative database. The primary outcomes were temporal trends in these procedures 1) during deliveries, 2) by hospital volume, and 3) before hysterectomy for uterine atony or delayed postpartum hemorrhage. Three 3-year periods were analyzed: 2006-2008, 2009-2011, and 2012-2014. Risk of morbidity in the setting of hysterectomy with uterine tamponade and interventional radiology procedures as the primary exposures was additionally analyzed in adjusted models.ResultsThe study included 5,383,486 deliveries, which involved 6,675 uterine tamponade procedures, 1,199 interventional radiology procedures, and 1,937 hysterectomies. Interventional radiology procedures increased from 16.4 to 25.7 per 100,000 delivery hospitalizations from 2006-2008 to 2012-2014 (P<.01), and uterine tamponade increased from 86.3 to 158.1 (P<.01). Interventional radiology procedures use was highest (45.0/100,000 deliveries, 95% CI 41.0-48.9) in the highest and lowest (8.9/100,000, 95% CI 7.1-10.7) in the lowest volume quintile. Uterine tamponade procedures were most common in the fourth (209.8/100,000, 95% CI 201.1-218.5) and lowest in the third quintile (59.8/100,000, 95% CI 55.1-64.4). Interventional radiology procedures occurred before 3.3% of hysterectomies from 2006 to 2008 compared with 6.3% from 2012 to 2014 (P<.05), and uterine tamponade procedures increased from 3.6% to 20.1% (P<.01). Adjusted risks for morbidity in the setting of uterine tamponade and interventional radiology before hysterectomy were significantly higher (adjusted risk ratio [aRR] 1.63, 95% CI 1.47-1.81 and aRR 1.75 95% CI 1.51-2.03, respectively) compared with when these procedures were not performed.ConclusionThis analysis found that uterine tamponade and interventional radiology procedures became increasingly common over the study period, are used across obstetric volume settings, and in the setting of hysterectomy may be associated with increased risk of morbidity, although this relationship is not necessarily causal.

Project description:To determine the association between prophylactic plasma transfusion and periprocedural red blood cell (RBC) transfusion rates in patients with elevated international normalized ratio (INR) values undergoing interventional radiology procedures.In this retrospective cohort study, adult patients undergoing interventional radiology procedures with a preprocedural INR available within 30 days of the procedure during a study period of January 1, 2009, to December 31, 2013, were eligible for inclusion. Baseline characteristics, coagulation parameters, transfusion requirements, and procedural details were extracted. Univariate and multivariable propensity-matched analyses were used to assess the relationships between prophylactic plasma transfusion and the outcomes of interest, with a primary outcome assessed a priori of RBC transfusion occurring during the procedure or within the first 24 hours postprocedurally.A total of 18,204 study participants met inclusion criteria for this study, and 1803 (9.9%) had an INR of 1.5 or greater before their procedure. Of these 1803 patients, 196 patients (10.9%) received prophylactic plasma transfusion with a median time of 1.9 hours (interquartile range [IQR], 1.1-3.2 hours) between plasma transfusion initiation and procedure initiation. In multivariable propensity-matched analysis, plasma administration was associated with increased periprocedural RBC transfusions (odds ratio, 2.20; 95% CI, 1.38-3.50; P<.001) and postprocedural intensive care unit admission rates (odds ratio, 2.11; 95% CI, 1.41-3.14; P<.001) as compared with those who were not transfused preprocedurally. Similar relationships were seen at higher INR thresholds for plasma transfusion.In patients undergoing interventional radiology procedures, preprocedural plasma transfusions given in the setting of elevated INR values were associated with increased periprocedural RBC transfusions. Additional research is needed to clarify this potential association between preprocedural plasma transfusion and periprocedural RBC transfusion.

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Liver-Directed Therapy for Neuroendocrine Metastases: From Interventional Radiology to Nuclear Medicine Procedures.

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