Revenues at Deltex Medical, the oesophageal doppler monitoring equipment group, grew 11% to £6.28m after a strong increase in sales of probes products.Group revenues grew by £0.64m over the year ended 31 December, £0.51m of which was attributable to the 13% increase in sales in its CardioQ-ODM disposable probes to the UK and US markets. Probes are the largest contributor to group sales in all its markets.Growing revenues and a reduction in costs reduced operating losses by 33% from £2.02m in 2009 to £1.35m last year."The company passed the operating cash break-even point for the first time in the second half of 2010. Sales are growing in all our target markets with the strongest growth coming from the markets on which we are most focused," said chairman Nigel Keen.Basic loss per share fell to 1.1p, from 1.9p previously. No dividend was paid.