ET                              •    Testimony May Hurt Merck in Vioxx Trial ANGLETON, Texas, July 28, 2005 (AP)  The pathologist who performed the 2001 autopsy of a Texas man at the center of the nation's first Vioxx-related civil trial may give testimony that could pose a challenge for the drug's maker, Merck & Co. According to a transcript of a deposition obtained by The Associated Press, Dr. Maria Araneta told attorneys on both sides of the lawsuit that the arrhythmia or irregular heart beat that caused Robert Ernst's death was probably brought on by a heart attack. "Arrhythmia does not spontaneously occur. Something must trigger it," Araneta said. Merck has said Vioxx couldn't have caused Ernst's death because there is no evidence linking the drug to arrhythmias. Merck pulled Vioxx off the market last year after a study showed it dou

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