Nathan Luedtke and colleagues explain that the spread of melanoma and other forms of cancer beyond the original location — a process called metastasis — makes cancer such a serious disease. Photodynamic therapy (PDT), which involves administering a drug that kills cancer cells when exposed to light, already is available. But PDT works only on the main tumor and has other drawbacks. …
When a pregnant teacher in Texas collapsed, her coworkers rushed to help. The woman technically died, gave birth and then was brought back to life. Erica Nigrelli, an English teacher at Elkins High School in Missouri City, Texas, collapsed in a co-worker's classroom when she was 36 weeks pregnant. “Apparently I told her, 'I feel very faint,' and I put my head down and I essentially just passed out,” Erica Nigrelli said. Erica's husband, Nathan, is also a teacher at Elkins. “I opened the door and walked in and Erica was laying on the floor,” he said. Erica Nigrelli's heart had stopped. Some co-workers started CPR and used a defibrillator to get it working again. They kept her alive until paramedics came and rushed her to the hospital. Doctors delivered baby Elayna by emergency caesarean section. It was technically a post-mortem delivery because Erica's heart wasn't beating. “There were two lives that were hanging in the balance the whole time.” Erica Nigrelli had an undetected heart defect, and the fact mom and baby are here today is a testament to her co-workers. Erica Nigrelli is only 32 years old, but doctors installed a pacemaker. Three-month-old Elayna now weighs a whopping 9 pounds, and could be off oxygen as early as next week. Click for more from My Fox Las Vegas. source : http://www.foxnews.com/health/2013/05/24/pregnant-woman-dies-gives-birth-comes-back-to-life/