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Washington Post Examines Focus On Abortions Later In Pregnancy After Tiller Murder
The Washington Post on Friday examined the renewed attention on abortion procedures performed later in pregnancy following Kansas provider George Tiller"s shooting death on Sunday. Tiller was one of the few physicians in the U.S. who performed late abortions. The Post reports that these abortions make up a small portion of the 1.2 million abortions performed each year -- more than 88% of abortions are performed in the first trimester and less than 1% are performed after 21 weeks" gestation. Data published in 2001 from 15 states and New York City show that as many as 2,400 abortions after 24 weeks" gestation were performed in the U.S. that year, according to Stanley Henshaw, a senior fellow at the Guttmacher Institute. He added that most of those abortions likely were performed in the 25th or 26th week.Henshaw said that little is known about the circumstances surrounding third trimester abortion procedures and that "information just isn"t available." The government does not collect detailed data regarding the number of such procedures, who is performing them and under what circumstances. In addition, abortion providers who perform the procedure later in pregnancy supply very little published information, the Post reports. According to the Post, most abortion providers will not perform the procedure after 22 or 24 weeks" gestation because of legal and other concerns, social stigma, or inadequate training and lack of experience. A 2001 survey of 1,819 abortion providers indicated that 18 clinics and 12 hospitals performed abortions at 26 weeks" gestation. However, the Post reports that the number of providers offering abortions later in pregnancy likely has declined in correlation with the decreasing number of overall providers. Henshaw said the number of providers offering the procedure later in pregnancy also likely has declined.Abortion-rights supporters say that third-trimester abortions are performed only when medically necessary, such as when a fatal abnormality is detected in the fetus or a life-threatening complication in the woman is discovered. Other circumstances include cases when the woman suffers serious emotional issues or is undergoing cancer treatment, the Post reports. Vicki Saporta, president of the National Abortion Federation, said that women who experience such pregnancies have "no good choice" and "nee[d] to terminate their pregnancies to protect their own health." Tiller "provided both the emotional and physical care for women in that situation," she said (Stein, Washington Post, 6/5).Los Angeles Times Profiles Abortion Provider Hern The Los Angeles Times on Friday profiled Warren Hern, a Colorado-based abortion provider who performs the procedure later in pregnancy and was a close friend of Tiller"s. Hern has provided abortions since 1973 when the Supreme Court legalized the procedure with Roe v. Wade. He said he "felt doing abortions was the most important thing I could do with my life." Hern opened the Boulder Abortion Clinic in 1975, and in the 1980s authored and self-published a textbook, Abortion Practice. He said that he eventually began to focus on abortion procedures later in pregnancy, which currently make up the majority of his practice. Such abortions usually are performed because of medical complications in the woman or abnormalities in the fetus. Patients at Hern"s clinic receive counseling to explain the procedure and to ensure the woman wants it, although he said many women have already made their decision with their own physician. Hern said that although Tiller"s death has been an emotional situation, his clinic is "pretty busy taking care of people who said they couldn"t find anyone else" to perform abortions later in pregnancy (Correll, Los Angeles Times, 6/5).Bond Set for Tiller Shooting Suspect Sedgwick County, Kan., District Judge Warren Wilbert on Thursday set a $5 million bond for Scott Roeder, the man charged with shooting and killing Tiller, the AP/Yahoo! News reports. A preliminary hearing for Roeder is scheduled for June 16. If convicted, Roeder face
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International Team Of Physician-astronauts Draws Upon First-hand Space Flight Experience In CMAJ Article
An international team of astronauts, including Canadian Dr. Robert Thirsk who launched into space on May 27, have just published an article in the Canadian Medical Association Journal (CMAJ) about the complex physiologic changes and psychological effects that occur in space. They draw upon first-hand experience as both physician-astronauts and crew medical officers on space missions and from NASA literature and peer-reviewed medical s.
News of the day
Bill Would Allow Federal Funding For Needle Exchange Programs
House Democrats on Friday as part of a spending measure to fund the Departments of Labor and HHS for fiscal year 2010, "unveiled legislation to lift a ban on federal funding for needle-exchange programs, a shift to try to reduce [HIV infections] but one that will probably spark a fight," Reuters/Boston Globe reports (7/11). The ban has been included in the annual spending bill in previous years. House Appropriations Committee Chair David Obey (D-Wis.) said, "Scientific studies have documented that needle exchange programs, when implemented as part of a comprehensive prevention strategy, are an effective public health intervention for reducing [HIV] infections and do not promote drug use" (Reuters, Pelofsky, 7/10). "The move is in keeping with a pledge [President] Obama made during the primaries to remove the prohibition on such funding, although the ban was carried in his budget request this year," CQ Today reports (Wolfe, 7/10). However, "Republicans are girding for a fight over the ban and lawmakers could try to restore it as the legislation moves through the House during the next two weeks," according to Reuters (7/10). The bill also addresses sex education and "appears to continue Democrats" slow march away from funding abstinence-only sex education," CQ reports (7/10).
Diagnostics

In New U-M Lab-On-A-Chip Device, Music Is The Engine

Music, rather than electromechanical valves, can drive experimental samples through a lab-on-a-chip in a new system developed at the University of Michigan. This development could significantly simplify the process of conducting experiments in microfluidic devices. A paper on the research will be published online in the Proceedings of the National Academy of Sciences the week of July 20. A lab-on-a-chip, or microfluidic device, integrates multiple laboratory functions onto one chip just millimeters or centimeters in size. The devices allow researchers to experiment on tiny sample sizes, and also to simultaneously perform multiple experiments on the same material. There is hope that they could lead to instant home tests for illnesses, food contaminants and toxic gases, among other advances. To do an experiment in a microfluidic device today, researchers often use dozens of air hoses, valves and electrical connections between the chip and a computer to move, mix and split pin-prick drops of fluid in the device"s microscopic channels and divots. "You quickly lose the advantage of a small microfluidic system," said Mark Burns, professor and chair of the Department of Chemical Engineering and a professor in the Department of Biomedical Engineering. "You"d really like to see something the size of an iPhone that you could sneeze onto and it would tell you if you have the flu. What hasn"t been developed for such a small system is the pneumatics - the mechanisms for moving chemicals and samples around on the device." The U-M researchers use sound waves to drive a unique pneumatic system that does not require electromechanical valves. Instead, musical notes produce the air pressure to control droplets in the device. The U-M system requires only one "off-chip" connection. "This system is a lot like fiberoptics, or cable television. Nobody"s dragging 200 separate wires all over your house to power all those channels," Burns said. "There"s one cable signal that gets decoded." The system developed by Burns, chemical engineering doctoral student Sean Langelier, and their collaborators replaces these air hoses, valves and electrical connections with what are called resonance cavities. The resonance cavities are tubes of specific lengths that amplify particular musical notes. These cavities are connected on one end to channels in the microfluidic device, and on the other end to a speaker, which is connected to a computer. The computer generates the notes, or chords. The resonance cavities amplify those notes and the sound waves push air through a hole in the resonance cavity to their assigned channel. The air then nudges the droplets in the microfluidic device along. "Each resonance cavity on the device is designed to amplify a specific tone and turn it into a useful pressure," Langelier said. "If I play one note, one droplet moves. If I play a three-note chord, three move, and so on. And because the cavities don"t communicate with each other, I can vary the strength of the individual notes within the chords to move a given drop faster or slower." Burns describes the set-up as the reverse of a bell choir. Rather than ringing a bell to create sound waves in the air, which are heard as music, this system uses music to create sound waves in the device, which in turn, move the experimental droplets. "I think this is a very clever system," Burns said. "It"s a way to make the connections between the microfluidic world and the real world much simpler." The new system is still external to the chip, but the researchers are working to make it smaller and incorporate it on a microfluidic device. That would be a step closer to a smartphone-sized home flu test. The paper is called, "Acoustically-driven programmable liquid motion using resonance cavities." Other authors are U-M chemical engineering graduate students Dustin Chang and Ramsey Zeitoun. The research is funded by the National Institutes of Health and the National Science Foundation. Nicole Casal Moore University of Michigan


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