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Acute papillary stone impaction: An ideal indication for upfront needle knife papillotomy ("needle knife excision").

ABSTRACT: Needle knife papillotomy (NKP) is still considered a rescue technique after conventional access failure due to traditional high complication rates, albeit data are maturing for early use of NKP in standard endoscopic retrograde cholangiopancreatography indications. By contrast, in certain settings NKP should be prioritized to a first-class indication, such as in choledochocele management and/or, more often encountered in clinical practice, true papillary stone impaction with or without gallstone pancreatitis. The latter results in prompt stone release; thus, the procedure might become alternatively designated as "needle knife excision."

SUBMITTER: Zimmer V

PROVIDER: S-EPMC8259923 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundPeriampullary diverticula (PAD) often detected during endoscopic retrograde cholangiopancreatography (ERCP), and ERCP remains the primary approach to treating bile duct stones, and papilla cannulation plays a critical role in the success of ERCP. PAD can reduce the cannulation success rate. Needle knife precut greatly promoted the clinical application of precut incision. However, this approach also increases the risk of various adverse events. The present study aimed to compare the perioperative outcomes of pancreatic duct guide wire-assisted needle knife precut and conventional needle knife precut for PAD with difficult cannulation.MethodsA total of 230 cases of PAD with difficult cannulation of the duodenal papilla diagnosed by ERCP between June 2009 and December 2021 were retrospectively reviewed. The exclusion criteria were set as follows: patients with ERCP history, coagulopathy prothrombin time two times longer or platelet (PLT) count ≤70×109/L, or an inability to tolerate endoscopy due to severe heart/lung diseases. Pancreatic duct guide wire-assisted needle knife precut (Group A) was performed in 135 cases, and conventional needle knife precut (Group B) was performed in 95 cases. All clinical data were analyzed retrospectively. SPSS20.0 statistical software was used for the t-test and analysis of variance. P<0.05 was considered statistically significant.ResultsThe operating time of the needle knife precut was significantly shorter in Group A (18.44±6.65 min) compared with Group B (32.05±13.15 min, P<0.01). Moreover, the success rate of the cannulation was markedly higher in Group A (100%, 135/135) compared with Group B (78.9%, 75/95). Intraoperative complications occurred in 15 (11.1%) and 26 (27.4%) cases in Groups A and B, respectively (P<0.01). Postoperative complications occurred in 10 (7.4%) and 17 (17.9%) cases in Groups A and B, respectively (P<0.01). Our results showed notable differences in the operating time, success rate of cannulation, intraoperative complication rates, and postoperative complication rates between the two approaches.ConclusionsPancreatic duct guide wire-assisted needle knife precut appeared to be a safe and effective modality for PAD with difficult cannulation in the duodenal papilla.

Project description:European Society of Gastrointestinal Endoscopy recommends needle-knife fistulotomy (NKF) as the preferred precut technique. However, there is little information on whether NKF performed at different times is associated with different success and adverse event rates. We compared the outcomes of 3 different timings of NKF. This was an observational study conducted at 4 institutions and this was a retrospective analysis of prospectively collected data. We included 330 consecutive patients submitted to NKF attempt for biliary access. Patients were divided into three groups: NKF as an initial procedure for biliary access (group A, n = 121); early NKF defined as after 5 min, 5 attempts, or 2 pancreatic passages (group B, n = 99); and late NKF: after at least 10 min of unsuccessful standard biliary cannulation (group C, n = 110). We assessed the success rate of biliary cannulation at initial ERCP, time to perform NKF until biliary cannulation, overall biliary cannulation rate (second ERCP when initial failure), adverse event rate, and predictors of post-ERCP pancreatitis (PEP). The initial cannulation rate was 98%, 91% and 94% for groups A, B and C respectively, p = 0.08, whereas overall biliary cannulation rate was 100%, 95% and 98%, p = 0.115. The adverse event rate/PEP was 4.1%/2.5%, 7.1%/4% and 10.9%/8.2%, for groups A, B and C respectively, (p = 0.197 and p = 0.190). Median time for creating the fistula was A = 4.0 min, B = 3.2 min, and C = 5.6 min, p < 000.1. Each additional minute spent attempting cannulation increased the odds ratio (OR) for PEP by 1.072, and patients with 3 or more risk factors for pancreatitis had a higher chance of PEP. In conclusion, the timing of NFK does not appear to influence success rates but late NFK is associated with a higher time to create a fistula and an increased risk of pancreatitis. Primary NFK is associated with a high rate of success and a low rate of PEP and deserves additional investigation.

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Acute papillary stone impaction: An ideal indication for upfront needle knife papillotomy ("needle knife excision").

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