• Hilko A Swank, Jefrey Vermeulen, Johan F Lange, Irene M Mulder, Joost A B van der Hoeven, Laurents P S Stassen, Rogier M P H Crolla, Meindert N Sosef, Simon W Nienhuijs, Robbert J I Bosker, Maarten J Boom, Philip M Kruyt, Dingeman J Swank, Willem H Steup, Eelco J R de Graaf, Wibo F Weidema, Robert E G J M Pierik, Hubert A Prins, Hein B A C Stockmann, Rob A E M Tollenaar, Bart A van Wagensveld, Peter-Paul L O Coene, Gerrit D Slooter, Esther C J Consten, Eino B van Duijn, Michael F Gerhards, Anton G M Hoofwijk, Thomas M Karsten, Peter A Neijenhuis, Charlotte F J M Blanken-Peeters, Huib A Cense, Guido H H Mannaerts, Sjoerd C Bruin, Quirijn A J Eijsbouts, Marinus J Wiezer, Eric J Hazebroek, Anna A W van Geloven, John K Maring, André J L D'Hoore, Alex Kartheuser, Christophe Remue, Helma M U van Grevenstein, Joop L M Konsten, Donald L van der Peet, Marc J P M Govaert, Alexander F Engel, Johannes B Reitsma, Willem A Bemelman, and Dutch Diverticular Disease (3D) Collaborative Study Group.
• Department of Surgery, Academic Medical Centre, Amsterdam, The Netherlands.
• Bmc Surg. 2010 Jan 1;10:29.

BackgroundRecently, excellent results are reported on laparoscopic lavage in patients with purulent perforated diverticulitis as an alternative for sigmoidectomy and ostomy.The objective of this study is to determine whether LaparOscopic LAvage and drainage is a safe and effective treatment for patients with purulent peritonitis (LOLA-arm) and to determine the optimal resectional strategy in patients with a purulent or faecal peritonitis (DIVA-arm: perforated DIVerticulitis: sigmoidresection with or without Anastomosis).Methods/DesignIn this multicentre randomised trial all patients with perforated diverticulitis are included. Upon laparoscopy, patients with purulent peritonitis are treated with laparoscopic lavage and drainage, Hartmann's procedure or sigmoidectomy with primary anastomosis in a ratio of 2:1:1 (LOLA-arm). Patients with faecal peritonitis will be randomised 1:1 between Hartmann's procedure and resection with primary anastomosis (DIVA-arm). The primary combined endpoint of the LOLA-arm is major morbidity and mortality. A sample size of 132:66:66 patients will be able to detect a difference in the primary endpoint from 25% in resectional groups compared to 10% in the laparoscopic lavage group (two sided alpha = 5%, power = 90%). Endpoint of the DIVA-arm is stoma free survival one year after initial surgery. In this arm 212 patients are needed to significantly demonstrate a difference of 30% (log rank test two sided alpha = 5% and power = 90%) in favour of the patients with resection with primary anastomosis. Secondary endpoints for both arms are the number of days alive and outside the hospital, health related quality of life, health care utilisation and associated costs.DiscussionThe Ladies trial is a nationwide multicentre randomised trial on perforated diverticulitis that will provide evidence on the merits of laparoscopic lavage and drainage for purulent generalised peritonitis and on the optimal resectional strategy for both purulent and faecal generalised peritonitis.Trial RegistrationNederlands Trial Register NTR2037.

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