[HSF] I think therefore...(little ol' lady update)

[erdinç naseri]

Dr. Frater,
This is  my question:hemolysis starts after 250-300 minutes in noncoated oxygenators with roller pump and it  increase exponentially( visually and followinh Htc) afterwards which makes a huge degree of hemolysis whan pump run >5 hours.How do the members prvent it or its untoward results.
erdinc> To: OpenHeart-L at lists.hsforum.com> Subject: Re: [HSF] I think therefore...(little ol' lady update)> Date: Sat, 28 Jul 2007 12:24:15 -0400> From: rwmfglycar at aol.com> CC: > > I am not surprised you see hemolysis at 300 minutes. Of course there > are multiple reasons for hemolysis . Bad suction is just the worst of > these. I am impressed that you run the pump. Very few modern > surgeonswould be able to do that safely,> Bob> > > -----Original Message-----> From: erdinç naseri <enaseri at hotmail.com.tr>> To: openheart-l at lists.hsforum.com> Sent: Fri, 27 Jul 2007 2:35 am> Subject: RE: [HSF] I think therefore...(little ol' lady update)> > > > > > > Dear Dr.Frater,> Since I am personally interested in the conduct of the heart-lung > machine(> sometimes act as perfusionist while my younger colleagues operate) I > pay full> attention to all the parameters you've mentioned to prevent hemolysis > ,but still> if CPB time is more than 300 minutes there will be hemolysis in all > types of> roller pumps and to a much lesser degree in centrifugal pumps due to> nonphysiologic environment in the pump head.> erdinc> From: Rwmfglycar at aol.com> Date: Thu, 26 Jul 2007 23:33:39 > -0400>> Subject: Re: [HSF] I think therefore...(little ol' lady update)> To:> OpenHeart-L at lists.hsforum.com> CC: > > Suction is the major cause of> hemolysis.Use a narrow dimension tube and > teach the perfusionists to > try to> suck just enough to keep an uninterrupted > bloodstream in the tube. > The best> system I ever used was connected to wall suction > with a control that > made fine> adjustments possible.> > > > ************************************** Get > a sneak> peek of the all-new AOL at > > http://discover.aol.com/memed/aolcom30tour>> _______________________________________________> OpenHeart-L mailing > list> >> Send postings to:> OpenHeart-L at lists.hsforum.com> > To UNSUBSCRIBE, to > CHANGE> email address, or to view archives:> > http://mmp.cjp.com/mailman/listinfo/openheart-l>> > All messages transmitted by the OpenHeart-L are subject to the > policies and >> disclaimers posted at:> http://www.hsforum.com/listdisclaim>> -----------------------------------------> _______________________________________________> OpenHeart-L mailing list> > Send postings to:> OpenHeart-L at lists.hsforum.com> > To UNSUBSCRIBE, to CHANGE email address, or to view archives:> http://mmp.cjp.com/mailman/listinfo/openheart-l> > All messages transmitted by the OpenHeart-L are subject to the policies > and> disclaimers posted at:> http://www.hsforum.com/listdisclaim> -----------------------------------------> > > > > ________________________________________________________________________> AOL now offers free email to everyone. Find out more about what's free > from AOL at AOL.com.> =0> _______________________________________________> OpenHeart-L mailing list> > Send postings to:> OpenHeart-L at lists.hsforum.com> > To UNSUBSCRIBE, to CHANGE email address, or to view archives:> http://mmp.cjp.com/mailman/listinfo/openheart-l> > All messages transmitted by the OpenHeart-L are subject to the policies and > disclaimers posted at:> http://www.hsforum.com/listdisclaim> -----------------------------------------