Navigation Links
Man Dies After Parasitic Worms Invade Lungs
Date:3/20/2013

By Randy Dotinga
HealthDay Reporter

WEDNESDAY, March 20 (HealthDay News) -- A Vietnamese immigrant in California died of a massive infection with parasitic worms that spread throughout his body, including his lungs. They had remained dormant until his immune system was suppressed by steroid drugs used to treat an inflammatory disorder, according to the report.

The 65-year-old man was apparently infected by the worms in Vietnam, one of many countries in the world where they're known to infect humans. About 80 percent to 90 percent of people die if they are infected by the worm species and then suffer from so-called "hyperinfection" as the worms travel through their bodies, said report co-author Dr. Niaz Banaei, an assistant professor of infectious diseases at Stanford University School of Medicine.

The man's case emphasizes the importance of testing patients who might be infected with the parasite before giving them drugs to dampen the immune system, said Dr. Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine, who's familiar with the report findings.

"You have to think twice before starting big doses of steroids," Hotez said. "The problem is that most physicians are not taught about this disease. It often does not get recognized until it's too late."

Parasitic worms of the Strongyloides stercoralis species are most commonly found in tropical and subtropical areas of the world, although they've also appeared in the Appalachian region of the United States. Typically, they infect people in rural areas such as Brazil, northern Argentina and Southeast Asia, Hotez noted, and may currently infect as many 100 million people worldwide.

The worms live in the ground or water, typically in places with poor sanitation, and infect humans by penetrating the skin. They may live in the intestines for years or even decades, creating new larvae that grow into worms about 2 millimeters long, Hotez explained.

For the patient in this case, trouble came when he took steroids, which dampen the immune system, to treat "giant-cell arteritis," a disorder that causes inflammation of arteries of the scalp, neck and arms. The drugs appeared to have allowed the worms to grow and spread because they were no longer kept in check.

Exams uncovered a massive lung infection, report co-author Banaei noted. "The adult worms were producing eggs, and the larvae emerging from the eggs were invading the intestinal wall and disseminating to multiple organs in the body," Banaei said.

When this happens, Baylor's Hotez said, hundreds of thousands of larvae can transmit bacteria from the intestines into other parts of the body.

A medication can help treat infestation with the worms, but it doesn't help when the hyperinfection reaches an advanced stage, he said.

What should be done? In cases where patients come from a region of the world where the worms are common, Hotez suggested that physicians consider that they may be infected and screen them for the worms. That may be difficult though, because multiple fecal tests may be necessary, he said, and another kind of test has limited value in terms of detecting cases.

The study findings are published in the March 21 issue of the New England Journal of Medicine.

More information

For more about the worm species Strongyloides stercoralis, visit the University of Michigan.

SOURCES: Niaz Banaei, M.D., assistant professor of infectious diseases, Stanford University School of Medicine, Palo Alto, Calif.; Peter Hotez, M.D., Ph.D., dean, National School of Tropical Medicine, Baylor College of Medicine, Houston; March 21, 2013, New England Journal of Medicine


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Estrogen helps keep joint pain at bay after hysterectomy
2. Biennial mammograms best after 50, even for women with dense breasts
3. Women's Excellence in Pelvic Floor Physical Therapy Near Pontiac, MI, Now Offers Therapy After Vaginal Delivery to Prevent Urinary Incontinence, Improve Sexual Function
4. Sexual function improves significantly after hip or knee replacement surgery
5. New study: Incidence and mortality of PCa after termination of PSA-based screening
6. Celebrity Jennifer Nicole Lee's JNL Fusion Workout Is on E! Network, on "Celebrity Guide to Miami" Show Airing April 7th After Season Finale of Kourtney & Kim Take Miami
7. Sorting out fertility after childhood cancer
8. New Method Quickly Spots Kidney Damage After Surgery
9. High-Fat Dairy Foods Linked to Worse Survival After Breast Cancer
10. Surprising rate of women depressed after baby
11. Study Confirms Slight Rise in Paralysis Risk After Swine Flu Shot
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Man Dies After Parasitic Worms Invade Lungs
(Date:2/11/2016)... ... February 11, 2016 , ... ... trainer and author Ray Clarke poses a question as a challenge for his ... his book, "Being in the Being" (published by Partridge Singapore), Clarke explores the ...
(Date:2/11/2016)... ... ... Life is known for throwing curves. It’s thrown quite a few to the ... to play softball to raise money through Sun Health Foundation for cardiac ... competed in this year’s softball tournament share a history of heart problems, including heart ...
(Date:2/11/2016)... ... ... Colorado spine surgeon, Donald Corenman, MD, DC has been selected ... 2016 . The list consists of spine surgeons across the country nominated by their ... the importance of clinical excellence; he has been awarded the Patient’s Choice Award, Compassionate ...
(Date:2/11/2016)... ... 11, 2016 , ... Talix today announced that Clive Fields, ... presenting at the 2016 HIMSS Annual Conference & Exhibition, taking place February 29 ... “ Coding for Care: Using Data Analytics for Risk Adjustment ,” Dr. Fields ...
(Date:2/11/2016)... ... ... Dickinson Insurance & Financial Services continues their commitment to act as Agents ... local boy named Barrett, who has been fighting ALL leukemia for almost two years. ... all local families dealing with childhood cancer. Information on how to help is now ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... 2016 F ast ... answers at the point of ... scientific, technical and medical information products and services, has launched a ... clinical information via a mobile device. Elsevier designed the mobile app to ... new app is available in Android and iOS ...
(Date:2/11/2016)... by a major "team investment" by Bruce Montgomery , one of this area,s most prominent ... CEO Leen Kawas , PhD. Photo - ... ... ... Kawas said the round was intended to be an ...
(Date:2/11/2016)... , Feb. 11, 2016  AcelRx Pharmaceuticals, Inc. (NASDAQ: ... will be made at the 38th annual John ... Care Symposium, which is being held February 14-18, 2016 ... covers the latest advancements in wound healing, burn care, ... Burn Association, Australian-New Zealand Burns Association, Academy of Physicians ...
Breaking Medicine Technology: