Shares of Cardiovascular Systems, Inc (CSI) have been steadily rising in the week following the Company’s announcement of promising financials for the first quarter fiscal 2010 ended September 30, 2009.

CSI increased revenue 30 percent in the first quarter of fiscal 2010, to $15.2 million compared to revenue of $11.6 million for the same quarter of the previous year. Likewise, CSI’s net loss improved 55 percent to $(6.2) million, or $(0.43) per basic and diluted share, in the first quarter of fiscal 2010, from $(13.7) million, or $(2.75) per basic and diluted share, for the same quarter 2009.

David L. Martin, CSI president and chief executive officer, said, “Balancing revenue growth with effective expense management helped drive a substantial reduction in our loss from the fiscal 2009 first quarter, moving CSI toward our goal of profitability.”

The number of weighted average common shares outstanding increased to 14.5 million from 5.0 million in the first quarter of fiscal 2009, primarily due to new shares issued in conjunction with the February 2009 reverse merger with Replidyne, Inc., including the conversion of all preferred stock of the company to common stock.

Additionally, the fiscal first-quarter 2010 gross margin increased to 77 percent from 67 percent in the same period last year, driven by higher disposable volumes, manufacturing efficiencies, product cost reductions and shipment of fewer controller units. Operating expenses decreased 18 percent, due to effective expense management, the year-earlier write-off of $1.7 million in IPO costs, and completion and timing of development projects and clinical studies.

Adjusted EBITDA, calculated as loss from operations, less depreciation and amortization and stock-based compensation expense, improved by 70 percent to a loss of $(3.6) million versus a loss of $(11.8) million in the year-ago period. Cash and cash equivalents remained strong at $30.8 million and included $3.0 million of net funding received in conjunction with signing an agreement to establish a second production facility in Pearland, Texas.

Martin continued, “During the quarter, we focused on driving adoption in existing accounts, including re-educating physicians on proper clinical protocols for using the Diamondback 360° to change lesion compliance in vessels above the knee. As a result, we are seeing greater product usage in many accounts. These improvements were offset by seasonal weakness in endovascular procedures, resulting in revenue slightly below our expected range.”

The number of hospitals using the Diamondback 360® PAD System rose to 611 by the end of the fiscal 2010 first quarter, a nearly 90-percent increase over a year ago and 55 more than the end of the fourth quarter of fiscal 2009. Sales of disposable device units totaled 4,541 units in the first quarter of fiscal 2010 versus 3,636 units in the first quarter of last fiscal year, a 25-percent increase. Revenue generated from customer reorders continued to grow, increasing to 92 percent of total revenue for the fiscal 2010 first quarter from 72 percent in last year’s first quarter.