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Deferred Intravascular Lithotripsy-Facilitated Stenting in ACS: Novel Approach to Improve PCI Outcomes in Severe Calcification?

ABSTRACT: Moderate/severe calcification, present in approximately one-third of culprit lesions in acute coronary syndromes (ACS), portends unfavorable procedural and post-primary percutaneous coronary intervention outcomes. Intravascular lithotripsy is a novel technique using shockwaves to fracture calcific plaques. Presenting a clinical case, we enumerate efficacy and safety parameters in using intravascular lithotripsy in ACS. (Level of Difficulty: Advanced.).

SUBMITTER: Patel S

PROVIDER: S-EPMC8312124 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:ObjectiveTo compare three groups of patients who underwent uncomplicated ureteroscopic lithotripsy (URSL) and to evaluate whether stenting could be eliminated after the procedure, as there is no consensus about whether a ureteric stent should be placed after uncomplicated ureteroscopy for stone retrieval.Patients and methodsIn this randomised clinical trial (NCT04145063) 105 patients underwent uncomplicated URSL for ureteric stones. They were prospectively randomised into three groups: Group 1 (34 patients) with a double pigtail ureteric stent, Group 2 (35 patients) with a double pigtail ureteric stent with extraction string, and Group 3 (36 patients) with no ureteric stent placed after the procedure. The outcomes measured were: postoperative visual analogue scale (VAS) score for flank pain and dysuria score, urgency, frequency, suprapubic pain, haematuria, analgesia requirement, operative time, re-hospitalisation, and return to normal physical activity.ResultsThe mean (SD) operative time was significantly longer in groups 1 and 2 compared to Group 3, at 22.2 (9.1), 20.2 (6) and 15.1 (7.1) min, respectively (P < 0.001). The results of the VAS for flank pain and dysuria scores, urgency, frequency, haematuria, and suprapubic pain showed a significant difference at all time-points of follow-up, being significantly higher in groups 1 and 2 compared to Group 3 (all P < 0.001). Further analysis showed that measured outcomes, and analgesia need for groups 1 and 2 were similar, at all time-points except at week 1 and 1 month where Group 2 patients' had less symptoms (P < 0.001).ConclusionDouble pigtail ureteric stent placement appears to be unnecessary in procedures considered 'uncomplicated' by operating urologists during surgery. The advantages of the double pigtail ureteric stent with extraction string over the double pigtail ureteric stent only include earlier and easier removal with earlier relief of symptoms, and less analgesia requirements.AbbreviationsKUB: plain abdominal radiograph of the kidneys, ureters and bladder; URSL: ureteroscopic lithotripsy; VAS: visual analogue scale.

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Deferred Intravascular Lithotripsy-Facilitated Stenting in ACS: Novel Approach to Improve PCI Outcomes in Severe Calcification?

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