By Harold L. Karpman, MD
Clinical Professor of Medicine, UCLA School of Medicine
Disclosure; Dr. Karpman reports no financial conflicts of interest in this field of study.
Despite the recent explosion of pharmacologic agents available for the treatment of congestive heart failure (CHF), many patients continue to be severely symptomatic and their prognosis remains poor.
By Malcolm Robinson, MD, FACP, FACG
Emeritus Clinical Professor of Medicine, University of Oklahoma College of Medicine, Oklahoma City, OK
Disclosure; Dr. Robinson serves as a consultant for TAP, Pfizer, Janssen, Eisai, J&J-Merck, and Procter & Gamble, is on the speakers bureau of Janssen, Eli Lilly, Solvay, TAP, and Aventis, and does research for Forest Labs, Wyeth-Ayerst, AstraZeneca,and Centocor.
Synopsis: Rifaximin, a newly released nonabsorbed antibiotic, appears to safely and effectively prevent the onset and substantial morbidity of travelers diarrhea.
By William T. Elliott, MD, FACP, and James Chan, PharmD, PhD
Dr. Elliott is Chair, Formulary Committee, Northern California Kaiser Permanente; Asst. Clinical Professor of Medicine, University of California, San Francisco; Dr. Chan is Pharmacy Quality and Outcomes Manager, Kaiser Permanente, Oakland, CA
Drs. Chan and Elliott report no financial relationships to this field of study.
Is It Hot In Here?; Homeopathy vs Conventional Medicine; FDA Actions
Bacterial resistance to antibiotic treatment has concerned the medical community since the introduction of the first antibiotics in the 1920s. Development of new anti-infective agents has been precipitated by increasing resistance to older agents and classes of agents.
Ultrasound utilizes frequencies well above the range of human hearing to penetrate and visualize structures in the body. While human hearing is generally in the range of 20-20,000 Hz (cycles/second), diagnostic ultrasound is typically in the range of 2-12 mega-hertz (MHz), or 2-12 million cycles per second.
