zipsy zippicun: Heart, not heat, caused marathoner's death

zipsy zippicun: Heart, not heat, caused marathoner's death

Monday, October 8, 2007

Heart, not heat, caused marathoner's death

Heart, not heat, caused marathoner's death - UPI.com

Heart, not heat, caused marathoner's death

Published: 8, 2007 at 2:46 PM
CHICAGO, Oct. 8 (UPI) -- A runner who died during the Chicago Marathon was felled by a heart problem rather than the unusual autumn heat wave in the Midwest.

The Cook County medical examiner determined Monday that Chad Schreiber, 35, a Midland, Mich., police officer, suffered from a mitral valve prolapse that caused him to collapse and die 19 miles into Sunday's grueling 26.2 mile race.

With temperatures at a record 88 degrees, the marathon had to be halted as hundreds of runners began suffering from the heat and dehydration. The Chicago Tribune said more than 315 runners required medical treatment.

Mitral valve prolapse is a condition in which a heart valve doesn't close properly and is not related to heat.

Schreiber and his wife had three children and he was named police officer of the year in Midland this year.

Mitral Valve Prolapse

Mitral valve prolapse (MVP) is also called click-murmur syndrome, floppy mitral valve syndrome, and Barlow syndrome after the doctor who first described MVP.

The mitral valve is one of 4 valves in the heart. It opens and closes to control blood flow between the heart's left atrium and the left ventricle. The mitral valve has 2 flaps, or "leaflets."

In mitral valve prolapse, one or both leaflets of the valve are too large, or the chordae tendinea (the strings attached to the underside of the leaflets, connected to the ventricular wall) are too long (redundant), resulting in uneven closure of the valve during each heartbeat. Because of uneven closure of the leaflets, the valve bulges back, or "prolapses," into the left atrium like a parachute. When this happens, a very small amount of blood may leak through, moving backward from the ventricle to the atrium.

The valve still works well, and the heart pumps normally. Prolapse does not cause damage to the heart over time. Only 2% of people have other structural heart problems along with mitral valve prolapse.

Previously called the most common heart valve abnormality, mitral valve prolapse was thought to have affected 5-20% of the general population, mainly women. Now with newer, wiser echocardiographic criteria, it is thought to affect only 2-3% of the general population, and it is most often diagnosed in people aged 20–40 years.

zipsy zippicun: Chad Schieber dies at Chicago Marathon

Sunday, October 7, 2007

Chad Schieber dies at Chicago Marathon

The Canadian Press: Runner Chad Schieber dies at Chicago Marathon; 250 hospitalized

Runner Chad Schieber dies at Chicago Marathon; 250 hospitalized

1 hour ago

CHICAGO - A Michigan man died Sunday while running the Chicago Marathon as stifling heat and smothering humidity forced organizers to shut down the course midway through the race.

Chad Schieber, 35, collapsed while running on the South Side and was pronounced dead shortly before 1 p.m. at a Veteran's Affairs hospital, according to the Cook County medical examiner's office.

An autopsy on the Midland, Mich., man was scheduled for Monday.

Another 250 people were taken to area hospitals because of heat-related ailments.

Organizers closed the second half of the course just before noon, four hours after the annual race started and with temperatures already at 23 C with 86 per cent humidity. By 11 a.m. ET, temperatures had already reached a race-record 31 C. The previous marathon record of 29 C was set in 1979.

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