- Deltex Medical Group says results from the first randomised controlled trial to compare post-operative outcomes when using ODM to the most commonly used alternative technology show significantly better outcomes from ODM.

Doctors from St Thomas's Hospital, London, presented the findings from their study of 127 patients at the annual meeting of The Association of Coloproctology of Great Britain and Ireland.

All patients were undergoing bowel surgery, 40% of them using laparoscopic ('keyhole') techniques, within a well established enhanced recovery programme.

Each was monitored with both CardioQ-ODM and an uncalibrated Pulse Pressure Waveform Analysis (PPWA) monitor which was originally developed at St Thomas' Hospital for intensive care use about 25 years ago: in half the patients care was guided using ODM and in the other half using PPWA. Statistically significant results included:

- 'Poor agreement': the PPWA device prompted a different intervention to that indicated by ODM two times in every five, resulting in either too much or too little fluid being given at that time

- 50% more PPWA patients required treatment with vaso-active drugs

- ODM patients were able to get out of bed and move around on average one day sooner

- ODM patients went home on average two days earlier (six days compared to eight days)

Prior to these results, there have been 13 studies using ODM during surgery with positive outcomes (i.e. either a statistically significant reduction in complications or length of stay or both) and eight trials using this particular PPWA device during surgery but no positive outcomes.

Deltex Medical chief executive Ewan Phillips said: "These results confirm both the superiority of ODM over PPWA and that intra-operative fluid management, done properly, has a crucial role in determining optimal patient outcomes in modern enhanced recovery programmes incuding laparoscopic surgical techniques. "This is the second important new trial to be presented since we launched our new, easier to use, TruFlow probes in May. The first trial from Spain, the largest ever randomised controlled trial of ODM, showed significant reductions in both post-operative complications and length of hospital stay and this second study shows why all the key evidence in this field comes from use of ODM."

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