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Non insertion of Prophylactic abdominal drain not tied to increased morbidity after distal pancreatectomy: Lancet

Written By : Dr. Shravani Dali |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2024-04-09T09:00:03+05:30  |  Updated On 9 April 2024 11:23 AM IST
Non insertion of Prophylactic abdominal drain not tied to increased morbidity after distal pancreatectomy: Lancet
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Non-insertion of Prophylactic abdominal drain is not tied to increased morbidity after distal pancreatectomy suggests a study published in the Lancet.

Researchers have found in a randomized non-inferiority PANDORINA trial that non insertion of a drain did not increase rates of major morbidity and tied to reduced detection of grade B or C postoperative pancreatic fistula (POPF), compared with insertion of a passive abdominal drain after distal pancreatectomy, which has been standard practice. Prophylactic passive abdominal drainage is standard practice after distal pancreatectomy. This approach aims to mitigate the consequences of postoperative pancreatic fistula (POPF) but its added value, especially in patients at low risk of POPF, is currently being debated. We aimed to assess the non-inferiority of a no-drain policy in patients after distal pancreatectomy. In this international, multicentre, open-label, randomised controlled, non-inferiority trial, we recruited patients aged 18 years or older undergoing open or minimally invasive elective distal pancreatectomy for all indications in 12 centres in the Netherlands and Italy. We excluded patients with an American Society of Anesthesiology (ASA) physical status of 4–5 or WHO performance status of 3–4, added by amendment following the death of a patient with ASA 4 due to a pre-existing cardiac condition.

Patients were randomly assigned (1:1) intraoperatively by permuted blocks (size four to eight) to either no drain or prophylactic passive drain placement, stratified by annual centre volume (<40 or ≥40 distal pancreatectomies) and low risk or high risk of grade B or C POPF. High-risk was defined as a pancreatic duct of more than 3 mm in diameter, a pancreatic thickness at the neck of more than 19 mm, or both, based on the Distal Pancreatectomy Fistula Risk Score. Other patients were considered low-risk. The primary outcome was the rate of major morbidity (Clavien–Dindo score ≥III), and the most relevant secondary outcome was grade B or C POPF, grading per the International Study Group for Pancreatic Surgery. Outcomes were assessed up to 90 days postoperatively and analysed in the intention-to-treat population and per-protocol population, which only included patients who received the allocated treatment. A prespecified non-inferiority margin of 8% was compared with the upper limit of the two-sided 95% CI (Wald) of unadjusted risk difference to assess non-inferiority. This trial is closed and registered in the Netherlands Trial Registry, NL9116.

Findings: Between Oct 3, 2020, and April 28, 2023, 376 patients were screened for eligibility and 282 patients were randomly assigned to the no-drain group (n=138; 75 [54%] women and 63 [46%] men) or the drain group (n=144; 73 [51%] women and 71 [49%] men). Seven patients in the no-drain group received a drain intraoperatively; consequently, the per-protocol population included 131 patients in the no-drain group and 144 patients in the drain group. The rate of major morbidity was non-inferior in the no-drain group compared with the drain group in the intention-to-treat analysis (21 [15%] vs 29 [20%]; risk difference –4·9 percentage points [95% CI –13·8 to 4·0]; pnon-inferiority=0·0022) and the per-protocol analysis (21 [16%] vs 29 [20%]; risk difference –4·1 percentage points [–13·2 to 5·0]; pnon-inferiority=0·0045). Grade B or C POPF was observed in 16 (12%) patients in the no-drain group and in 39 (27%) patients in the drain group (risk difference –15·5 percentage points [95% CI –24·5 to –6·5]; pnon-inferiority<0·0001) in the intention-to-treat analysis. Three patients in the no-drain group died within 90 days; the cause of death in two was not considered related to the trial. The third death was a patient with an ASA score of 4 who died after sepsis and a watershed cerebral infarction at second admission, leading to multiple organ failure. No patients in the drain group died within 90 days. A no-drain policy is safe in terms of major morbidity and reduced the detection of grade B or C POPF, and should be the new standard approach in eligible patients undergoing distal pancreatectomy.

Reference:

van Bodegraven EA, Balduzzi A, van Ramshorst TME, Malleo G, Vissers FL, van Hilst J, Festen S, Abu Hilal M, Asbun HJ, Michiels N, Koerkamp BG, Busch ORC, Daams F, Luyer MDP, Ramera M, Marchegiani G, Klaase JM, Molenaar IQ, de Pastena M, Lionetto G, Vacca PG, van Santvoort HC, Stommel MWJ, Lips DJ, Coolsen MME, Mieog JSD, Salvia R, van Eijck CHJ, Besselink MG; Dutch Pancreatic Cancer Group. Prophylactic abdominal drainage after distal pancreatectomy (PANDORINA): an international, multicentre, open-label, randomised controlled, non-inferiority trial. Lancet Gastroenterol Hepatol. 2024 Mar 15:S2468-1253(24)00037-2. doi: 10.1016/S2468-1253(24)00037-2. Epub ahead of print. PMID: 38499019.

Non insertionProphylacticabdominal drainincreasedmorbiditydistal pancreatectomyLancet
Source : Lancet
Dr. Shravani Dali
Dr. Shravani Dali

    Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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