Atenuación de la respuesta hemodinámica a la KTR

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  • 8/2/2019 Atenuacin de la respuesta hemodinmica a la KTR

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    DOI 10.1378/chest.93.1.381988;93;38-42Chest

    Jeffrey Askanazi and Allen I. HymanPatti Klein, Marcia Kemper, Charles Weissman, Stanley H. Rosenbaum,to Chest Physical TherapyAttenuation of the Hemodynamic Responses

    http://www.chestjournal.org/content/93/1/38

    services can be found online on the World Wide Web at:The online version of this article, along with updated information and

    ) ISSN:0012-3692http://www.chestjournal.org/site/misc/reprints.xhtml(the copyright holder.may be reproduced or distributed without the prior written permission ofNorthbrook IL 60062. All rights reserved. No part of this article or PDF

    the American College of Chest Physicians, 3300 Dundee Road,byPhysicians. It has been published monthly since 1935. Copyright 2007

    CHEST is the official journal of the American College of Chest

    Copyright 1988, by the American College of Chest Physicianson May 14, 2009www.chestjournal.orgDownloaded from

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    A t t e n u a t i o n o f t h e HemodynamicR e s p o n s e s t o C h e s t P h y s i c a l T h e r a p y *P a t t i K l e i n , M . D . ; t M a r c i a K e m i p e r , B . A . ; t C h a r l e s W e i s s m a n , A l . D . , S t a n l e y H . R o s e n b a u m , M . D . ; I ! J e f f r e y A s k a n a z i , M . D . , E C . C . P ; a n dA l l e n I . H y m t a n , M . D . ; *

    C h e s t p h y s i o t h e r a p y ( C P T ) i s a c o m m o n l y u s e d t e c h n i q u e i nm e c h a n i c a l l y v e n t i l a t e d c r i t i c a l l y i l l p a t i e n t s . T h i s s t u d ye x a m i n e s t h e h e m o d y n a m i c a n d m e t a b o l i c c h a n g e s a s s o c i -a t e d w i t h CPT a n d m e a s u r e s t h e a t t e n u a t i o n b y t w o d o s e s o fi n t r a v e n o u s f e n t a n y l ( 1 . 5 p L g / k g a n d 3 . 0 1 L g / k g ) o n t h e s ec h a n g e s . H e a r t r a t e , s y s t o l i c a n d mean b l o o d p r e s s u r e s ,c a r d i a c o u t p u t , o x y g e n c o n s u m p t i o n ( V o 2 ) , a n d c a r b o nd i o x i d e p r o d u c t i o n ( V c o O ) a l l i n c r e a s e d d u r i n g C P T . D e -

    C l h e s t p h y s i o t h e r a p y ( C P T ) i s c o m m o n l y u s e d i nm e c h a n i c a l l y v e n t i l a t e d c r i t i c a l l y i l l p a t i e n t s t om n o b i l i z e p u l m o n a r y s e c r e t i o n s a n d f a c i l i t a t e t h e i rr e m o v a l . ' 2 T h e CPT c o n s i s t s o f v a r y i n g a m o u n t s o fp e r c u s s i o n , c h e s t w a l l v i b r a t i o n , p o s t u r a l d r a i n a g e ,a n d s u c t i o n i n g . ' ) T h e e f f i c a c y o f CPT i n v a r i o u sd i s e a s e s i s c o n t r o v e r s i a l . 3 5 T l h o u g h a s t r e s s f u l p r o c e -d u r e t h a t m a y h a v e s i g n i f i c a n t m e t a b o l i c a n d h e m o -d y i n a m i c e f f e c t s , 6 s u r p r i s i n g l y f e w s t u d i e s h a v e e x -a m i n i e d t h l i s . H e m o d y i n a m i c d i s t u r b a n c e s a r e o f s p e c i a lc o n i c e r n s i r n c e c r i t i c a l l y i l l p a t i e n t s m a y l a c k t h e c a r d i a cr e s e r v e n e c e s s a r y t o t o l e r a t e s t r e s s . T h e p u r p o s e o ft h i s s t u d y w a s t w o f o l d a s f o l l o w s : ( 1 ) t o m e a s u r e t h eh i e m o d y n a m i c a n d m e t a b o l i c c h a n g e s t h a t o c c u r w i t hC P T , a n d ( 2 ) t o e x a m n i n e w l h e t h e r n a r c o t i c a n a l g e s i c sc a r n a t t e n u a t e t h e s e r e s p o n s e s .METHODS

    T w e n t y - t h r e e p o s t o p e r a t i v e m e c h a n i c a l l y v e n t i l a t e d p a t i e n t s i nt h e S u r g e r y - A n e s t h e s i o l o g y I n t e n s i v e C a r e U n i t o f t h e C o l u m b i aP r e s b y t e r i a n i M e d i c a l C e n t e r w e r e s t u d i e d o n 2 6 o c c a s i o n s . T h ep a t i e n t s h a d u n d e r g o n e m a j o r a b d o m i n a l o r t h o r a c i c s u r g e r y w i t h i nt h e p r e v i o u s w e e k . A l l w e r e h e m o d y n a m i c a l l y s t a b l e , s o r n e w e r er e c e i v i n g l o w d o s e s o f i n o t r o p i c m e d i c a t i o n ( d o p a m i n e 2 - 4 F L g / k g /m i n ) a n d c o n t i n u o u s i n t r a v e n o u s a n a l g e s i a w i t h f e n t a n y l ( 0 . 5 - 1 . 0 > L g /k g / h ) . T h e CPT c o n s i s t e d o f p e r c u s s i o n , v i b r a t i o n , a n d s u c t i o n i n g .E a c h p a t i e n t i e c e i v e d t w o t e n - i n i n i u t e CPT s e s s i o n s , s e p a r a t e d b y a t* F r o m t h e D e p a r t m e n t s o f A n e s t h e s i o l o g y a n d M e d i c i n e , C o l l e g eo f P h y s i c i a n s a n d S u r g e o n s , C o l u m b i a U n i v e r s i t y , New Y o r k .t F e l l o w , D e p a r t m e n t o f A n e s t h e s i o l o g y .C u r r e n t l y a t D e p a r t r n e n t o f A n e s t h e s i o l o g y , New Y o r k U n i v e r s i t yS c h o o l o f M e d i c i n e , New Y o r k .t S t a f f A s s o c i a t e , D e p a r t m e n t o f A n e s t h e s i o l o g y . A s s i s t a n t P r o f e s s o r o f A n e s t h e s i o l o g y a n d M e d i c i n e .l A s s o c i a t e P r o f e s s o r o f C l i n i c a l A n e s t h e s i o l o g y a n d M e d i c i n e . A s s i s t a n t P r o f e s s o r o f A n e s t h e s i o l o g y .* * P r o f e s s o r o f A n e s t h e s i o l o g y a n d P e d i a t r i c s .M a n u s c r i p t r e c e i v e d M a r c h 1 2 ; r e v i s i o n a c c e p t e d M a y 1 2 .R e p r i n t r e q u e s t s : Dr W e i s s m a n , 6 3 0 W e s t 1 6 8 t h S t r e e t , N e w Y o r kC i t y 1 0 0 3 2

    c r e a s e s i n a r t e r i a l pH a n d V E a n d i n c r e a s e s i n P a C O , w e r ea l s o o b s e r v e d . T h e h i g h e r , b u t n o t l o w e r d o s e , o f f e n t a n y ls i g n i f i c a n t l y a t t e n u a t e d i n c r e a s e s i n b l o o d p r e s s u r e a n dh e a r t r a t e d u r i n g CPT a n d n o s u b s t a n t i a l h e m o d y n a m i cc h a n g e s o c c u r r e d o n c e CPT h a d s t o p p e d . T h e i n c r e a s e s i nV o 2 a n d V c o , w e r e n o t a t t e n u a t e d . S h o r t a c t i n g n a r c o t i c sa t t e n u a t e t h e h e m o d y n a m i c r e s p o n s e s t o s t r e s s f u l s t i m u l is u c h a s C P T .

    l e a s t a 3 0 - m i n u t e i n t e r v a l . G r o u p 1 ( n = 1 0 ) r e c e i v e d 1 . 5 , u g / k g o ff e n t a n y l o r p l a c e b o i n t r a v e n o u s l y i n r a n d o r n o r d e r , t h r e e m i n u t e sb e f o r e e a c h CPT s e s s i o n . G r o u p 2 ( n = 1 0 ) s i m i l a r l y r e c e i v e d t w os e s s i o n s o f C P T , p r e c e d e d b y 3 [ m g / k g o f f e n t a n y l o r p l a c e b oi n t r a v e n o u s l y . G r o u p 3 ( n = 6 ) r e c e i v e d o n l y p l a c e b o b e f o r e e a c hCPT s e s s i o n . T h i s g r o u p s e r v e d a s a c o n t r o l g r o u p t o a c c o u n t f o r t h ec o n s i s t e n c y i n p e r f o r m a n c e o f CPT a s w e l l a s t h e d i u r n a l c h a n g e s i nh e m o d y n a m i c a n d m e t a b o l i c p a r a m e t e r s . T h e d r u g o r p l a c e b o w a sa d m i n i s t e r e d a f t e r b a s e l i n e v a l u e s h a d b e e n o b t a i n e d b y o n e o f t w oc o a u t h o r s ( P . K . o r C . W ) , a n d i t w a s u n k n o w n t o t h e t h e r a p i s tp e r f o r m i n g CPT ( M . K . ) w h e t h e r f e n t a n y l o r p l a c e b o h a d b e e ng i v e n . E a c h CPT s e s s i o i i w a s p r e c e d e d b y a 1 5 - m i n u t e r e s t i n g p e r i o d( r e s t i n g h a s b e e n p r e v i o u s l y d e f i n i e d a s " a s t a t e w h e r e t h e p a t i e n t w a sn o t a r o u s e d b y s u r r o u n d i n g e v e n t s " ) . 5 E a c h s e s s i o n c o n s i s t e d o ft u r n i n g t h e p a t i e n t o n t o h i s o r h e r s i d e ( i e , l a t e r a l d e c u b i t u sp o s i t i o n ) , t h e n p e r f o r n i i n g p e r c u s s i o n a n d v i b r a t i o n f o r t h r e e r n i i n -u t e s , r e p e a t i n g t h e p ro c e du r e o n t h e o p p o s i t e s i d e , t h e n p l a c i n g t h ep a t i e n t s u p i n e t o s u c t i o n t h e t r a c h e a . S u c t i o i n i n g w a s l i m i t e d t o o n em i n r u t e . T h e CPT s e s s i o n w a s t h e n f o l l o w e d b y a 2 0 - m i n u t e r e s tp e r i o d . M e t a b o l i c a n d h e m o d y n i a m i c m e a s u r e m e n t s w e r e m a d ed u r i r i g t h e p r o c e d u r e a n d r e s t p e r i o d . O x y g e n c o n s u m p t i o n ( V o 2 ) ,c a r b o n d i o x i d e p r o d u c t i o n ( V c o 2 ) , m i n u t e v e n t i l a t i o n ( V E ) , a n dr e s p i r a t o r y q u o t i e n t ( R Q ) w e r e m e a s u r e d a n d r e c o r d e d c o n t i n u o u s l yt h r o u g h o u t t h e CPT s e s s i o n a n d c o n t i n u e d u n i t i l t h e p a t i e n t r e -t u r n e d t o a r e s t i n g s t a t e . M e a s u r e m e n t s w e r e m a d e o f h e a r t r a t e( H R ) , a n d b l o o d p r e s s u r e ( s y s t o l i c , d i a s t o l i c , a n d m e a n ) . T h e s e d a t aw e r e c o l l e c t e d a t t h e f o l l o w i n g t i m n e s , 1 5 , t e n , a n d f i v e m i n u t e sb e f o r e CPT s e s s i o n ( p a t i e n t s u p i n e ) , o n e m i n u t e a f t e r t h e p a t i e n t w a st u r n e d i n t o t h e l a t e r a l d e c u b i t u s p o s i t i o n i n p r e p a r a t i o n f o r CPT( s i d e 1 ) , t h r e e r n i n u t e s a f t e r CPT w a s b e g u n o n s i d e 1 , t h r e e m i n u t e sa f t e r CPT w a s b e g u n o n s i d e 2 , i m m e d i a t e l y a f t e r s u c t i o n i n g t h ep a t i e n t , a n d t e n , 1 5 , a n d 2 0 m i n u t e s f o l l o w i n g t h e c o m p l e t i o n o f t h eCPT s e s s i o n i . A r t e r i a l b l o o d g a s v a l u e s w e r e o b t a i n e d a s f o l l o w : 1 5m i n u t e s b e f o r e C P T , t h r e e m i n u t e s a f t e r CPT w a s b e g u n o n s i d e 2 ,a n d 1 5 m i n u t e s a f t e r c o r n p l e t i o n o f s i d e 2 C P T . I n s o m e p a t i e n t s ,c a r d i a c o u t p u t w a s m e a s u r e d b y t h e r m o d i l u t i o n a t 1 5 m i n u t e s a n do n e m i i i u t e b e f o r e CPT ( s i d e 1 ) , i m m e d i a t e l y a f t e r c o m p l e t i o n o fCPT o n s i d e 2 ( p a t i e n t s u p i n e ) , a n d 1 5 m i n u t e s a f t e r c o m p l e t i o n o fCPT ( p a t i e n i t i n " r e s t i n g s t a t e " ) .H e a r t r a t e a n d d i r e c t b l o o d p r e s s u r e w e r e m o n i t o r e d c o n t i n u o u s l yu s i n g i n d w e l l i n g 2 0 g r a d i a l a r t e r y c a t h e t e r s c o n r l e c t e d t o H e w l e t t -P a c k a r d p r e s s u r e a m p l i f i e r m o d u l e s w i t h B e n i t l e y T r a n t e c p r e s s u r e

    H e m o d y n a m i c R e s p o n s e s t o C h e s t P h y s i c a l T h e r a p y ( K l e i n e t a l )8

    Copyright 1988, by the American College of Chest Physicianson May 14, 2009www.chestjournal.orgDownloaded from

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    T a b l e 1 - V a l u e s o f S y s t o l i c a n d Mean B l o o d P r e s s u r e ( m e a n + S D )B a s e l i n e * T u r n CPT1 CPT2 SXN R e s t

    G r o u p 1 ( n = 1 0 )D I u g S 1 3 4 + 2 7 1 4 1 2 4 1 4 2 2 9 1 4 6 3 1 1 3 9 3 0 1 2 2 2 7

    M 85+12 9 4 . - 1 4 9318 9 5 1 8 9017 8 9 1 1P l a c e b o S 1 2 9 2 6 1 4 9 22 1 5 5 2 3 1 : 1 5 4 1 7 1 + 1 4 9 2 3 1 3 1 + 3 1M 8 3 - 1 1 9 6 - - 1 0 9 9 - 9 : 1 0 0 I 4 - I 94 2 0 85+ 1 5

    G r o u p 2 ( n = 1 0 )D i r u g S 1 4 0 t 3 3 1 5 5 3 9 1 5 6 2 9 t 1 5 7 t 2 9 t 1 4 0 3 8 1 2 1 1 6N I 8 9 2 2 1 0 4 2 6 T : 1 0 4 1 9 1 1 0 1 1 9 8 9 t 2 3 8 0 1 1P l a c e b o S 1 4 9 3 2 1 6 7 3 6 1 8 6 3 51 1 8 8 3 1 4 1 7 8 3 9 T 1 4 9 3 2 M 9 3 + 1 7 1 0 6 2 5 1 1 8 2 3 4 1 1 9 + 1 9 T 1 1 1 2 5 t : 9 4 1 6

    G r o u p 3 ( N = 6 )P l a c e b o S 1 1 5 1 2 1 3 7 3 9 T : 1 3 4 2 6 t 1 3 8 2 8 T : 1 3 2 + 2 2 t 1 1 4 1 5

    M 74+9 93 2 0 t 90 2 1 t 9 3 - 2 1 t 8 3 1 5 6 9 1 3P l a c e b o S 1 1 6 1 6 1 3 8 1 5 T 1 4 3 1 7 T 1 4 5 2 5 t 1 3 5 2 4 T 1 1 7 1 9M 7 6 1 1 9 5 1 3 T 9 5 1 1 1 9 7 1 4 1 : 9 3 + 2 0 t 7 8 1 5

    * B a s e l i n e i s m e a n o f v a l u e s , 1 5 , t e n , a n d f i v e m i n u t e s p r i o r t o C P T ; CPT 1 , f i r s t CPT s e s s i o n . CPT 2 , s e c o n d CPT s e s s i o n i ; S X N , s u c t i o n i n g ; r e s t ,m e a n o f v a l u e s t e n , 1 5 , a n d 2 0 m i n u t e s a f t e r C P T ; S , s y s t o l i c b l o o d p r e s s u r e (mm H g ) ; a n d N I , i n e a n b l o o d p r e s s u r e (mm H g ) .t S i g n i f i c a n t l y d i f f e r e n t t h a n b a s e l i n e v a l u e s ( p < 0 . 0 5 ) .1 : S i g n i f i c a n t l y d i f f e r e n t t h a n b a s e l i n e v a l u e s ( p < 0 . 0 1 ) . D i f f e r e n c e b e t w e e n b a s e l i n e v a l u e s i g n i f i c a n t l y d i f f e r e n t w h e n d r u g a n d p l a c e b o c o m p a r e d ( p 0 . 0 1 ) .t r a n s d u c e r s . I n p a t i e n t s w i t h p u l m o n a r y a r t e r y c a t h e t e r s , t h e r -m o d i l u t i o n c a r d i a c o u t p u t s w e r e m e a su r e d w i t h a n E d w a r d s c a r d i a co u t p u t c o m p u t e r . T h e r a t e p r e s s u r e p r o d u c t ( R P P ) w a s c a l c u l a t e df r o m t h e s y s t o l i c b l o o d p r e s s u r e a n d h e a r t r a t e . M e t a b o l i c d a t e ( V o 2 ,V c o 2 , R Q ) a n d m i n u t e v e n t i l a t i o n ( V E ) w e r e m e a s u r e d w i t h aH o r i z o i i m e t a b o l i c m e a s u r e m e n t c a r t .A P u r i t a n - B e n n e t t A O - I b l e n d e r w a s p l a c e d b e t w e e n t h e g a ss o u r c e s a n d t h e B e a r I v e n t i l a t o r a n d w a s u s e d t o e n s u r e c o n s i s t e n c yo f t h e F I o 2 . 7 T h e F l o 2 s a m p l i n g l i n e w a s p l a c e d a b o v e t h e o u t l e t p o r to f t h e c a s c a d e h u m i d i f i e r . T h e m i x e d e x p i r e d g a s f l o w e d f r o m t h ee x p i r a t o r y p o r t o f t h e B e a r I t o t h e m i x i n g c h a m b e r o f t h e H o r i z o nm e t a b o l i c m e a s u r e m e n t c a r t v i a s i x f e e t o f 2 2 mm t u b i n g . S a m p l e dg a s w a s t h o r o u g h l y d r i e d b e f o r e r e a c h i n g t h e a n a l y z e r s . T h e v o l u m e ,t e m p e r a t u r e , C O 2 a n d 0 2 a n a l y z e r s w e r e f u l l y c a l i b r a t e d b e f o r e e a c hs t u d y .T h i s s t u d y w a s a p p r o v e d b y t h e I n s t i t u t i o n a l R e v i e w B o a r d ,

    C o l u m b i a U n i v e r i s i t y H e a l t h S c i e n c e s C e n t e r . W A r i t t e n i n f o r m e dc o n s e n t w a s o b t a i n e d f r o m n t h e p a t i e n t o r a c l o s e f a i m i i l y m e m b e r .S t a t i s t i c a l a n a l y s i s w a s p e r f o r m e d u s i n g p a i r e d a n d u n p a i r e d S t u -d e n t ' s t - t e s t w i t h B o n f e r r o n i c o r r e c t i o n a n d t h r e e - w a y a n a l y s i s o fv a r i a n c e .

    T a b l e 2 - H e a r t R a t eB a s e l i r n e T u r n CPT1* CPT2 SX N R e s t

    G r o u p 1 ( N = 1 0 )D r u g 8 6 1 3 9 4 1 2 9 5t1 2 T 9 5 t 1 6 t 9 5 1 5 t 8 4 1 1P l a c e b o 8 4 1 3 9 2 1 0 1 : 9 5 5 1 1 T 1 0 0 1 1 1 : 9 4 1 4 : 85+ 1 1G r o u p 2 ( N = 1 0 )D r u g 1 0 1 9 1 0 8 1 1 1 0 7 1 4 1 1 2 14 1 0 6 1 3 9 5 6 P l a c e b o 9 8 +9 1 0 9 1 2 : 1 1 2 1 1 + 1 1 6 1 6 : 1 1 7 1 6 1 1 0 1 1 2G r o u p 3 ( N 6 )P l a c e b o 9 9 6 1 0 4 + 1 0 1 1 2 ' 1 1 t 1 1 0 t 1 5 t 1 1 2 1 2 1 : 9 7 1 1P l a c e b o 9 3 7 1 0 2 + 1 7 1 0 6 t 1 4 t 1 0 9 t 1 0 t 1 0 8 1 3 1 + 9 8 1 2*CPT 1 i s i n i t i a l c h e s t p h y s i c a l t h e r a p y s e s s i o n ; CPT 2 . s e c o n d c h e s tp h y s i c a l t h e r a p y s e s s i o n ; a n l d , S X N , s u c t i o n i i i g .t S i g r i i f i c a n t l y d i f f e r e n t t h a n b a s e l i n e v a l u e s ( p < 0 0 5 ) .* S i g n i f i c a n t l y d i f f e r e n t t h a n b a se l i n e v a l u e s ( p < 0 . 0 1 ) . D i f f e r e n c e b e t w e e n b a s e l i n e v a l u e s i g n i f i c a n t l y d i f f e r e n t w h e nd r u g a n d p l a c e b o c o m p a r e d ( p < . O l ) .

    R E S U L T SC h e s t p h y s i c a l t h e r a p y r e s u l t e d i n s i g n i f i c a n t m e t a -b o l i c a n d h e m o d y n a m i c c h a n g e s w i t h p l a c e b o . H e a r tr a t e , s y s t o l i c a n d m e a n b l o o d p r e s s u r e s , a n d c a r d i a co u t p u t w e r e a l l i n c r e a s e d d u r i n g t h e c h e s t p h y s i c a lt h e r a p y s e s s i o n s ( T a b l e s 1 t h r o u g h 3 ) . S i r n i l a r i n c r e a s e s

    w e r e s e e n i n V o 2 a n d V c o 2 ( T a b l e 4 ) . I n s o m e g r o u p s ,a r t e r i a l pH d r o p p e d s i g n i f i c a n t l y a n d P a C O 2 i n c r e a s e dw h i l e V E d e c r e a s e d o r d i d n i o t c h a n g e d u r i n g CPT( T a b l e 4 ) . S o m e p a t i e n t s h a d d e c r e a s e s i n P a O 2 .I n G r o u p 3 , t h e r e w a s n o s i g n i f i c a n t d i f f e r e n c e s i nt h e h e m o d y n a i n i c , r e s p i r a t o r y , a n d r n e t a b o l i c r e -s p o i n s e s b e t w e e n t h e t w o CPT s e s s i o n i s .T h e a d m i n i s t r a t i o n o f 1 . 5 , u t g / k g f e n t a n y l i m m e -d i a t e l y p r i o r t o CPT r e s u l t e d i n n o d i f f e r e n c e s w h e nc o m p a r e d t o p l a c e b o . H o w e v e r , w l h e n 3 . 0 1 . g / k g w a sa d m i n i s t e r e d , t h e r e w a s s i g n i f i c a n t a t t e n u a t i o n o f t h ei n c r e a s e i n s y s t o l i c a n d m e a n b l o o d p r e s s u r e , a s w e l l a ss u p p r e s s i o n o f t h e h e a r t r a t e i n c r e a s e . N o d e c r e a s e i nt h e a t t e n u a t i o n w a s f o u n d i n p a t i e n t s r e c e i v i n g b a c k -g r o u n d s e d a t i o n ( c o n t i n u o u s i n t r a v e n o u s i n f u s i o n o f

    T a b l e 3 - C a r d i a c O u t p u tB a s e l i n e CPT R e s t

    G r o u p 1 ( n 6 )D r u g 5 . 2 + 0 . 8 6.0+ I . l t 5 . 2 + 0 . 6P l a c e b o 5 . 1 + 0 . 6 6 . 8 + 1 . 3 t 5 . 1 + 0 . 5G r o u p 2 ( n 6 )D r u g 5 . 3 0 . 9 6 . 2 + 1 . O t 4 . 8 1 . 0P l a c e b o 5 . 4 0 . 8 7 5 + 2 . 3 t 5 . 7 1 . 3G r o u p 3 ( n = 2 )P l a c e b o 6 . 5 0 . 0 3 9 . 2 0 l t 6 . 1 + 0 . 0 3* N l e a n - 1 - S D ; C P T , c h e s t p h y s i c a l t h e r a p y .t S i g n i f i c a n t l y d i f f e r e n t t h a n b a s e l i n e v a l u e s ( p < 0 . 0 1 ) .

    CHEST / 9 3 / 1 / J A N U A R Y , 1 9 8 8 3 9

    Copyright 1988, by the American College of Chest Physicianson May 14, 2009www.chestjournal.orgDownloaded from

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    T a b l e 4 - M e t a b o l i c a n d R e s p i r a t o r y D a t aV o 2 , V C o 2 , V E , P a O 2 , P C O 2 ,m i / m i n m l / m i n L / m i n RQ pH mm Hg mm H g

    G r o u p 1 ( n = 1 0 )D r u gB a s e l i n e 20446 17833 8 . 9 2 . 1 0 . 8 9 0 . 1 7 . 4 5 + 0 5 12924 3 7 3C PT 260+68* 20352* 9 . 0 2 . 3 0 . 7 8 0 . 1 7 . 4 0 + 0 . 1 * 1 1 1 27 4 3 3 *R e s t 2 0 0 + 5 3 t 1 7 8 3 6 t 9 . 0 2 . 4 0 . 9 2 0 . 2 7 . 4 2 + 0 . 1 1 1 81 5 4 1 + 4P l a c e b oB a s e l i n e 2 0 1 5 0 1 8 0 3 2 9 . 9 + 1 . 9 0 . 9 2 0 . 2 7 . 4 5 0 . 0 12717 3 8 + 3C PT 2 7 2 + 5 1 * 21331* 9 . 4 1 . 7 * 0 . 8 1 0 . 1 7 . 4 1 + 0 . 1 * 1 21 25 4 3 5 *R e s t 207 4 3 t 1 7 6 2 4 t 9 . 2 + 2 . 0 0 . 9 0 0 . 1 7 . 4 5 9 . 1 12827 3 9 + 5G r o u p 2 ( n 1 0 )D r u gB a s e l i n e 2 3 9 7 1 2 0 5 5 7 1 1 . 2 2 . 6 0 . 8 6 0 . 1 7 . 4 8 0 . 1 1 1 3 2 6 3 7 + 3CP T 3 3 1 1 0 5 * 24787* 1 1 . 3 3 . 5 0 . 7 5 + 0 . 1 7 . 4 1 0 . 1 * 10325 4 3 5 *R e s t 2 3 1 4 9 t 2 0 3 5 1 t 1 0 . 8 2 . 7 0 . 8 8 + 0 . 1 7 . 4 5 0 . 1 t 1 1 7 + 2 2 3 8 + 4P l a c e b oB a s e l i n e 2 4 2 4 9 20551 1 1 . 6 2 . 6 0 . 8 4 0 . 1 7 . 4 7 0 . 0 1 115+35 3 8 3CPT 3 3 0 9 0 * 2 4 7 6 8 * 1 2 . 2 2 . 9 0 . 7 7 0 . 1 7 . 4 3 0 . 1 * 97+25 4 1 5R e s t 2 4 1 5 8 t 2 1 5 6 0 t 1 0 . 9 2 . 8 0 . 8 9 0 . 1 7 . 4 5 0 . I t 10620 3 9 + 4G r o u p 3 ( n 6 )P l a c e b oB a s e l i n e 2 6 5 5 9 2 2 4 4 8 1 1 . 1 2 . 9 0 . 8 5 0 . 1 7 . 4 8 0 . 0 2 1 1 7 2 8 3 6 2CPT 3 1 0 1 6 7 2 5 4 5 1 1 2 . 3 3 . 1 0 . 8 3 0 . 1 7 . 4 6 0 . 0 2 12628 3 7 3R e s t 2 6 2 7 7 2 2 2 5 3 1 1 . 1 3 . 0 0 . 8 6 0 . 1 7 . 4 7 0 . 0 2 116+20 3 7 + 2P l a c e b oB a s e l i n e 2 4 1 _ 5 7 2 1 8 4 1 1 0 . 8 + 2 . 1 0 . 9 2 0 . 1 7 . 4 7 0 . 0 2 120 9 3 7 1 . 0CPT 2 9 5 7 5 2 4 4 4 5 1 2 . 4 3 . 0 0 . 8 6 0 . 1 7 . 4 6 0 . 0 2 1 1 9 2 5 3 9 2 . 2R e s t 2 4653 219 43 1 0 . 4 2 . 2 0 . 8 9 0 . 1 7 . 4 8 0 . 0 1 11322 3 7 2 . 4* S i g n i f i c a n t l y d i f f e r e n t t h a n b a s e l i n e v a l u e s ( p < 0 . 0 5 ) .t S i g n i f i c a n t l y d i f f e r e n t t h a n C P T v a l u e s ( p < O . O 5 ) .f e n t a n y l ) or i n o t r o p i c s u p p o r t . F e n t a n y l d i d n o t a l t e rt h e m e t a b o l i c r e s p o n s e d u r i n g CPT even a t t h e h i g h e rd o s e ( T a b l e 4 ) . No c r o s s - o v e r e f f e c t w a s n o t e d i n g r o u p s1 a n d 2 , i e , t h e r e w a s n o d i f f e r e n c e o f g i v i n g f e n t a n y l f o rt h e i n i t i a l CPT s e s s i o n v s g i v i n g i t f o r t h e s e c o n ds e s s i o n .

    DISCUSSIONP r e v i o u s s t u d i e s h a v e s h o w n t h a t CPT i s a s t r e s s f u lp r o c e d u r e . W e i s s m a n e t a 1 6 o b s e r v e d t h a t CPT c a u s e dg r e a t e r i n c r e a s e s a b o v e r e s t i n g l e v e l s o f V o 2 , V c o 2 ,h e a r t r a t e , a n d r a t e p r e s s u r e p r o d u c t t h a n d i d a n yo t h e r r o u t i n e d a i l y i n t e n s i v e c a r e p r o c e d u r e . L a w s a n dM c I n t y r e 8 f o u n d 5 0 p e r c e n t i n c r e a s e s i n c a r d i a c o u t p u tw i t h CPT a n d l u n g h y p e r i n f l a t i o n s ; M a c k e n z i e a n dS h i n 9 e x a m i n e d t h e c a r d i a c a n d r e s p i r a t o r y e f f e c t s o fCP T i n y o u n g a d u l t p a t i e n t s w i t h p o s t t r a u m a t i c r e s p i -r a t o r y f a i l u r e a n d f o u n d n o c h a n g e s i n t h e i r c a r d i a ci n d e x a f t e r CP T b u t d i d n o t m a k e measurementsd u r i n g t h e r a p y . A l t h o u g h i t s e f f i c a c y 4 5 i s c o n t r o v e r s i a l ,CPT i s p r a c t i c e d i n m a n y i n t e n s i v e c a r e u n i t s . B e c a u s eo f i t s a s s o c i a t e d h e m o d y n a m i c a n d m e t a b o l i c s t r e s s e s ,i t i s f r e q u e n t l y d e n i e d t o p a t i e n t s w i t h c a r d i o v a s c u l a rd y s f u n c t i o n . T h e s e p a t i e n t s a r e o f t e n t h o s e t h a t c a nl e a s t a f f o r d t o s u f f e r p u l m o n a r y d e t e r i o r a t i o n . T h e r e -

    f o r e , i t w o u l d b e b e n e f i c i a l t o s u p p r e s s t h e h e m o -d y n a m i c r e s p o n s e s o t h a t CPT c o u l d b e p e r f o r m e d i nt h i s g r o u p o f p a t i e n t s . T h e m a j o r c r i t e r i a i n c h o o s i n g ad r u g t o s u p p r e s s t h e s e r e s p o n s e s w e r e r a p i d o n s e t a n ds h o r t d u r a t i o n , t o s u p p r e s s t h e r e s p o n s e s d u r i n g CPTw i t h o u t c a u s i n g h y p o t e n s i o n d u r i n g a n d a f t e r t h ep r o c e d u r e w a s c o m p l e t e d . F e n t a n y l , a n a r c o t i c a n a l -g e s i c , h a s a r a p i d o n s e t a n d a s h o r t d u r a t i o n o f a c t i o n . "D o s e s o f f e n t a n y l h a v e b e e n s h o w n t o a t t e n u a t e t h eh e m o d y n a m i c s t r e s s e s a s s o c i a t e d w i t h s u c h p r o c e -d u r e s a s l a r y n g o s c o p y a n d i n t u b a t i o n d u r i n g s t a n -d a r d " ' 3 a n d r a p i d s e q u e n c e ' 4 a n e s t h e t i c i n d u c t i o n .O u r r e s u l t s c o n f i r m t h e p r e v i o u s o b s e r v a t i o n t h a tCPT c a n c a u s e m a j o r a l t e r a t i o n s i n b o t h h e m o d y n a m i ca n d m e t a b o l i c p a r a m e t e r s . 6 8 Mean i n c r e a s e s o f a p -p r o x i m a t e l y 5 0 p e r c e n t i n c a r d i a c o u t p u t , 2 5 p e r c e n t i nmean a n d s y s t o l i c b l o o d p r e s s u r e , a n d 1 5 p e r c e n t i nh e a r t r a t e w e r e o b s e r v e d . T h e r a t e p r e s s u r e p r o d u c t( R P P ) , a n i n d i c a t o r o f m y o c a r d i a l o x y g e n d e i n a n d , w a se l e v a t e d . D u r i n g t h e s t u d y , RPP f r e q u e n t l y e x c e e d e d1 5 , 0 0 0 , a l e v e l a t w h i c h i s c h e m i a c a n o c c u r i n p a t i e n t sw i t h c o r o n a r y a r t e r y d i s e a s e . ' 3 S i m i l a r l y , A i t k e n h e a de t a l ' 6 n o t e d t h a t RP P i n c r e a s e d f r o m 1 4 , 3 3 1 + 1 , 1 4 5p r e - C P T t o 1 8 , 7 7 6 + 1 , 7 3 2 d u r i n g CP T T h e y a l s oo b s e r v e d t h a t p l a s m a e p i n e p h r i n e a n d n o r e p i n e p h r i n e

    H e m o d y n a m i c R e s p o n s e s t o C h e s t P h y s i c a l T h e r a p y ( K l e i n e t a l )0

    Copyright 1988, by the American College of Chest Physicianson May 14, 2009www.chestjournal.orgDownloaded from

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    i n c r e a s e d 1 5 0 p e r c e n t a n d 5 0 p e r c e n t , r e s p e c t i v e l y ,a b o v e b a s e l i n e v a l u e s d u r i n g CPT a n d b e g a n r e t u r n i n gt o b a s e l i n e v a l u e s d u r i n g t h e 1 5 m i n u t e s a f t e r CPTWe f o u n d t h a t d u r i n g CPT i n s o m e o f t h e g r o u p s ,t h e r e w a s a s m a l l b u t s i g n i f i c a n t i n c r e a s e i n P a C O 2 ( a n dd e c r e a s e i n p H ) . T h i s w a s a s s o c i a t e d w i t h a r i s e i n . J c o 2w i t h o u t a p a r a l l e l i n c r e a s e i n V E . T h e l a c k o f i n c r e a s ei n V E i s n o t u n e x p e c t e d d u e t o t h e n a t u r e o f t h e s ep a t i e n t s ' u n d e r l y i n g p u l m o n a r y p a t h o l o g y a n d o f t h er e s p i r a t o r y d e p r e s s a n t e f f e c t s o f n a r c o t i c s . S m a l l d e -c r e a s e s i n P a O 2 w e r e o b s e r v e d i n s o m e p a t i e n t s w h i l eo t h e r s h a d s u b s t a n t i a l d r o p s i n P a O 2 . O t h e r i n -v e s t i g a t o r s h a v e a l s o o b s e r v e d d e c r e a s e s i n P a O 2 d u r -i n g CPT H u s e b y e t a l ' 7 s t u d i e d 1 8 a c u t e l y i l l , m e c h a n i -c a l l y v e n t i l a t e d p a t i e n t s w i t h p n e u m o n i a a n d f o u n d am e a n d e c r e a s e o f 1 9 mm Hg i n P a O 2 d u r i n g C P T .C o n n o r s e t a l " ' o b s e r v e d a m e a n d e c r e a s e o f 1 7 mm Hgi n a s i m i l a r g r o u p o f p a t i e n t s . B o t h a u t h o r s a t t r i b u t e dt h i s f a l l i n P a O 2 t o a n i n c r e a s e i n v e n t i l a t i o n / p e r f u s i o nd i s t u r b a n c e s c a u s e d b y c h a n g e s i n c a r d i a c o u t p u t a n dr e g i o n a l v e n t i l a t i o n i n i n t u b a t e d p a t i e n t s w i t h u n i l a t -e r a l l u n g d i s e a s e . ' 9 G o r m e n z a n o a n d B r a n t h w a i t e 2 "r e p o r t e d d e c r e a s e s i n a r t e r i a l o x y g e n t e n s i o n f o l l o w i n gCPT i n 1 3 p o s t o p e r a t i v e p a t i e n t s w i t h c a r d i a c c o m p r o -m i s e . M e c h a n i s m s i n v o l v e d t o e x p l a i n t h e i r f i n d i n g si n c l u d e d d e c r e a s e s i n v e n o u s r e t u r n s e c o n d a r y t oi n c r e a s e s i n i n t r a t h o r a c i c p r e s s u r e r e s u l t i n g i n d e -c r e a s e s i n c a r d i a c o u t p u t , i n c r e a s e s i n i n t r a p u l m o n a r ys h u n t o r i n c r e a s e s i n o x y g e n c o n s u m p t i o n , t h e l a t t e r o fw h i c h w a s s e e n i n t h e p r e s e n t s t u d y . T y l e r a n d c o l -l e a g u e s 2 ' p e r f o r m e d a r e g r e s s i o n a n a l y s i s o f t h e r e l a -t i o n s h i p s b e t w e e n b a s e l i n e P a O 2 a n d t h e l o w e s t P a O 2o b t a i n e d d u r i n g t h e r a p y . T h e s e o b s e r v a t i o n s r e i n f o r c et h e p r u d e n c e o f i n c r e a s i n g t h e F 1 o 0 t o 1 . 0 d u r i n g C P T .T h e a t t e m p t a t a t t e n u a t i n g t h e r e s p o n s e t o CPT w i t hf e n t a n y l d e m o n s t r a t e d d o s e d e p e n d e n c y . A t t h e l o w e rd o s e o f f e n t a n y l ( 1 . 5 p L g / k g ) , n o s i g n i f i c a n t a t t e n u a t i o nw a s o b s e r v e d . H o w e v e r , a t t h e h i g h e r d o s e ( 3 . 0 p L g / k g ) ,t h e r e w a s s i g n i f i c a n t r e d u c t i o n i n t h e i n c r e a s e s i nb l o o d p r e s s u r e a n d h e a r t r a t e . S y s t o l i c b l o o d p r e s s u r ei n c r e a s e d a n a v e r a g e o f 3 0 p e r c e n t w i t h o u t f e n t a n y la n d o n l y 1 2 p e r c e n t w h e n t h e h i g h e r d o s e o f d r u g w a sa d m i n i s t e r e d . S i m i l a r d e g r e e s o f a t t e n u a t i o n w e r es e e n w i t h m e a n b l o o d p r e s s u r e a n d h e a r t r a t e . C o m -p a r i s o n o f p r e - C P T b a s e l i n e d a t a w i t h p o s t - C P T r e s t -i n g v a l u e s d e m o n s t r a t e d t h a t w h e n t h e h i g h e r d o s e o ff e n t a n y l w a s a d m i n i s t e r e d , t h e r e w a s a s m a l l b u ts i g n i f i c a n t d e c r e a s e i n h e a r t r a t e , s o m e t h i n g n o t u n e x -p e c t e d g i v e n t h e v a g o t o n i c a c t i o n o f f e n t a n y l . I t i si n t e r e s t i n g t o n o t e t h a t a l t h o u g h t h e r e w a s s u p p r e s s i o no f t h e h e m o d y n a m i c r e s p o n s e , t h e r e w a s n o c h a n g e i nt h e m e t a b o l i c r e s p o n s e . T h i s d i s s o c i a t i o n b e t w e e nm e t a b o l i c a n d h e m o d y n a m i c r e s p o n s e i s n o t u n e x -p e c t e d , s i n c e o n l y a t r a t h e r l a r g e d o s e s o f n a r c o t i c s ( e g ,4 m g / k g o f m o r p h i n e o r 7 5 t o 1 0 0 p L g / k g o f f e n t a n y l ) i st h e r e s u p p r e s s i o n o f t h e m e t a b o l i c a n d h o r m o n a l

    r e s p o n s e s t o s t r e s s . 2 2 T h i s i s c o n s i s t e n t w i t h t h e f i n d -i n g s i n t h e c u r r e n t s t u d y , t h a t a t t h e l o w e r d o s e s o ff e n t a n y l u s e d i n t h i s s t u d y , t h e r e w a s s u p p r e s s i o n o ft h e h e m o d y n a m i c c h a n g e s w i t h l i t t l e a l t e r a t i o n i n t h em e t a b o l i c c h a n g e s .I n s u m m a r y , t h i s s t u d y d e m o n s t r a t e s t h a t CPTp r o d u c e s m a j o r h e m o d y n a m i c a n d m e t a b o l i c s t r e s sa n d t h a t t h e h e m o d y n a m i c r e s p o n s e t o CPT c a n b ea t t e n u a t e d b u t n o t a b o l i s h e d b y p r i o r a d m i n i s t r a t i o n o fa m o d e r a t e i n t r a v e n o u s d o s e o f f e n t a n y l . I t a l s o d e m -o n s t r a t e s t h a t t h i s d o s e o f f e n t a n y l d o e s n o t c a u s ec l i n i c a l l y s i g n i f i c a n t f a l l s i n b l o o d p r e s s u r e o r h e a r t r a t eo n c e t h e p r o c e d u r e h a s f i n i s h e d . T h i s d o e s o f f e n t a n y ld i d n o t , h o w e v e r , a l t e r t h e m e t a b o l i c r e s p o n s e .O u r s t u d y e x a m i n e d w h e t h e r n a r c o t i c s c a n a t t e n u -a t e t h e r e s p o n s e t o s t r e s s f u l s t i m u l i i n t h e c r i t i c a l l y i l l ,m e c h a n i c a l l y v e n t i l a t e d p a t i e n t s . T h e a b i l i t y o f s h o r t -a c t i n g n a r c o t i c a g e n t s t o a t t e n u a t e , b u t n o t a b o l i s h , t h eh e m o d y n a m i c r e s p o n s e t o a s t r e s s f u l s i t u a t i o n s u c h a sCPT s h o w s t h a t t h e r e i s a n e e d t o e x a m i n e w h e t h e rh i g h e r d o s e s o f f e n t a n y l o r o t h e r d r u g s c a n f u r t h e rs u p p r e s s a n d p o s s i b l y a b o l i s h t h i s r e s p o n s e w i t h o u tc a u s i n g m a j o r h e m o d y n a m i c d i s r u p t i o n o n c e t h e p r o -c e d u r e h a s b e e n c o m p l e t e d .ACKNOWLEDGMENTS: T h e a u t h o r s w o u l d l i k e t o t h a n k t h en u r s i n g s t a f f o f t h e S u r g e r y - A n e s t h e s i o l o g y I n t e n s i v e C a r e U n i t f o rt h e i r a s s i s t a n c e , M r s . C l a i r e F r e n c h f o r h e r s e c r e t a r i a l a s s i s t a n c e ,a n d D r . P a u l M e n d e l o w i t z f o r h i s t e c h n i c a l a s s i s t a n c e .

    REFERENCES1 K i g i n CM. A d v a n c e s i n c h e s t p h y s i c a l t h e r a p y . I n : O ' D o n o h u e

    W J . C u r r e n t a d v a n c e s i n r e s p i r a t o r y c a r e . P a r k R i d g e , I L :A m e r i c a n C o l l e g e o f C h e s t P h y s i c i a n s , 1 9 8 4 : 3 7 - 7 1

    2 M a c k e n z i e R F , C i e s l a N , I m l e P C, K l e m i c N . C h e s t p h y s -i o t h e r a p y i n t h e i n t e n s i v e c a r e u n i t . B a l t i m o r e : W i l l i a m s a n dW i l k i n s , 1 9 8 13 P i e r c e A K . C o n f e r e n c e o n t h e s c i e n t i f i c b a s i s o f i n - h o s p i t a lr e s p i r a t o r y . Am R e v R e s p i r D i s 1 9 8 0 ; 1 2 2 : 1 - 2

    4 K i r i H o f f L H , O w e n s G R , R o g e r s RM, M a z z o c c o MC . D o e sc h e s t p h y s i c a l t h e r a p y w o r k ? C h e s t 1 9 8 5 ; 8 8 : 35 M o r r a r c a L , F i n l a y I G , M a t h e s o n M , McKay A J , W i l s o n N ,M c A r d l e C S . R a n d o m i z e d c o n t r o l l e d t r i a l o f p h y s i o t h e r a p y f o r

    p o s t o p e r a t i v e p u l m o n a r y c o m p l i c a t i o n s . B r J A n e s t h 1 9 8 3 ;5 5 : 1 1 1 3 - 1 7

    6 W e i s s m a n C , K e m p e r M , D a m a s k M C , A s k a n a z i J , Hyman A L ,K i n n e y J M . T h e e f f e c t o f r o u t i n e i n t e n s i v e c a r e i n t e r a c t i o n s o nm e t a b o l i c r a t e . C h e s t 1 9 8 4 ; 8 6 : 8 1 5 - 1 87 B r o w n i n g J A , L i n b e r g S E , T u r n e y S Z , C h o d o f f P T h e e f f e c t s o ff l u c t u a t i o n F l o 2 o n m e t a b o l i c m e a s u r e m e n t s i n m e c h a n i c a l l yv e n t i l a t e d p a t i e n t s . C r i t C a r e Me d 1 9 8 2 ; 1 0 : 8 2 - 8 58 L a w s A K , M c I n t y r e R W . C h e s t p h s y i o t h e r a p y : a p h y s i o l o g i c a la s s e s s m e n t d u r i n g i n t e r m i t t e n t p o s i t i v e p r e s s u r e v e n t i l a t i o n i nr e s p i r a t o r y f a i l u r e . C a n A n e st h S o c J 1 9 6 9 ; 1 2 : 4 8 1

    9 M a c k e n z i e C F , S h i n B . C a r d i o r e s p i r a t o r y f u n c t i o n b e f o r e a n da f t e r c h e s t / p h y s i o t h e r a p y i n m e c h a n i c a l l y v e n t i l a t e d p a t i e n t sw i t h p o s t - t r a u m a t i c r e s p i r a t o r y f a i l u r e . C r i t C a r e Me d 1 9 8 5 ;1 3 : 4 8 3 - 8 61 0 S c h l e i m e r R , B e n j a m i n i E , E i s e l e H , H e n d e r s o n G . P h a r -m a c o k i n e t i c s o f f e n t a n y l a s d e t e r m i n e d b y r a d i o i m m u n o a s s a y .C l i n P h a r m a c o l T h e r 1 9 7 8 ; 2 3 : 1 8 81 1 D a h l g r e n N , M e s s o t e r K . T r e a t m e n t o f s t r e s s r e s p o n s e t ol a r y n g o s c o p y a n d i n t u b a t i o n w i t h f e n t a n y l . A n e s t h e s i a 1 9 8 1 ;3 6 : 1 0 2 2 - 2 6

    CHEST / 9 3 / 1 / J A N U A R Y , 1 9 8 8 4 1

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    1 2 M a r t i n D E , R o se n b e r g H , A u k b e r g S J , B a r t k o w s k i R R , E d w a r d sMW , G r e e n h o w D E . Lo w d o s e f e n t a n y l b l u n t s c i r c u l a t o r yr e s p o n s e s t o t r a c h e a l i n t u b a t i o n . A n e s t h A n a l g 1 9 8 2 ; 6 1 : 6 8 0 - 41 3 P a r k e r E O , R o s s A L . Lo w d o s e f e n t a n y l e f f e c t s o n t h i o p e n t a lr e q u i r e m e n t s a n d h e m o d y n a m i c r e s p o n s e d u r i n g i n d u c t i o n a n di n t u b a t i o n . A n e s t h e s i o l o g y 1 9 8 2 ; 5 7 : 3 2 21 4 C o r k R C , W e i s s J L , H a m e r s o f t S K , B e n t l y J . F e n t a n y l p r e l o a d -i n g f o r r a p i d s e q u e n c e i n d u c t i o n o f a n e s t h e s i a . A n e s t h A n a l g1 9 8 4 , 6 3 : 6 0 - 6 41 5 G o b e l F L , N o r d e n s t r o m L A , N e l s o n R R , J o r g e n s e n C R , W a n g YT h e r a t e p r e s s u r e p r o d u c t a s a n i n d e x o f m y o c a r d i a l o x y g e nc o n s u m p t i o n d u r i n g e x e r c i s e i n p a t i e n t s w i t h a n g i n a p e c t o r i sc i r c u l a t i o n . C i r c u l a t i o n 1 9 7 8 ; 5 7 : 5 4 9 - 5 61 6 A i t k e n h ea d A R , T a y l o r S , H u n t C W , A c h o l a k C , S m i t h G . E f f e c to f r e s p i r a t o r y t h e r a p y o n p l a s m a c a t e c h o l a m i n e s . A n e s t h e s i o l o g y1 9 8 4 ; 6 1 : 4 41 7 H u s e b y J , H u d s o n L , S t a r k K , T y l e r M . O x y g e n a t i o n d u r i n g

    c h e s t p h y s i o t h e r a p y ( a b s t r a c t ) . C h e s t 1 9 7 6 ; 7 0 : 4 3 01 8 C o n n e r s A F , Hammar WE, M a r t i n A H , R o g e r s R M . C h e s tp h y s i c a l t h e r a p y : t h e i m m e d i a t e e f f e c t o f o x y g e n a t i o n i n a c u t e l yi l l p a t i e n t s . C h e s t 1 9 8 0 ; 7 8 : 5 5 9 - 6 41 9 B u s c a g l i a A J , S t . M a r i e M S . O x y g e n s a t u r a t i o n d u r i n g c h e s tp h y s i o t h e r a p y f o r a c u t e e x a c e r b a t i o n o f s e v e r e o b s t r u c t i v e p u l -m o n a r y d i s e a s e . R e s p i r C a r e 1 9 8 3 ; 2 8 : 1 0 0 9 - 1 3

    2 0 G o r r n e z a n o J , B r a n t h w a i t e M A . E f f e c t s o f p h y s i o t h e r a p y d u r i n gi n t e r m i t t e n t p o s i t i v e p r e s s u r e v ' e n t i l a t i o n . A n e s t h e s i a 1 9 7 2 ,2 7 : 2 5 8 - 6 32 1 T y l e r M L , H u d s o n L D , G r o s e B L , N M o s e b y J S . P r e d i c t i o n o fo x y g e n a t i o n d u r i n g c h e s t p h y s i o t h e r a p y i n c r i t i c a l l y i l l p a t i e n t s .A m R e v R e s p i r D i s 1 9 8 0 ; 1 2 : 2 1 82 2 G e o r g e J M, R e i e r C E , L a n e s e R R , R o w e n J M , M o r p h i n ea n e s t h e s i a b l o c k s t h e c o r t i s o l a r i d g r o w t h h o r m o n e r e s p o n s e t os u r g i c a l s t r e s s i n h u m a n s . J C l i n E n d o c r i n o l M e t a b o l 1 9 7 4 ;3 8 : 7 3 6 - 4 0

    H e m o d y n a m i c R e s p o n s e s t o C h e s t P h y s i c a l T h e r a p y ( K l e i n e t a l )

    E i g h t h A n n u a l U p d a t e i n O c c u p a t i o n a l M e d i c i n eT h e M i d w e s t C e n t e r f o r O c c u p a t i o n a l H e a l t h a n d S a f e t y , C o n t i n u i n g M e d i c a l E d u c a t i o n , S t .P a u l R a m s e y M e d i c a l C e n t e r / R a m s e y C l i n i c , w i l l p r e s e n t t h i s e i g h t h a n n u a l p r o g r a m o n M a r c h

    2 5 i n S t . P a u l . F o r i n f o r m a t i o n , c o n t a c t M s . R u t h K . M c I n t y r e , M i d w e s t C e n t e r f o r O c c u p a t i o n a lH e a l t h a n d S a f e t y , S t . P a u l - R a m s e y - M e d i c a l C e n t e r , 6 4 0 J a c k s o n S t r e e t , S t . P a u l 5 5 1 0 1( 6 1 2 : 2 2 1 - 3 9 9 2 ) .T e n t h I n t e r n a t i o n a l C y s t i c F i b r o s i s C o n g r e s s

    T h e A u s t r a l i a n C y s t i c F i b r o s i s A s s o c i a t i o n s F e d e r a t i o n a n d T h e C y s t i c F i b r o s i s F o u n d a t i o n o fN e w S o u t h W a l e s w i l l p r e s e n t t h i s t e n t h i n t e r n a t i o n a l c o n g r e s s i n S y d n e y , A u s t r a l i a , M a r c h 5 - 9 ,1 9 8 8 a t t h e S h e r a t o n - W e n t w o r t h H o t e l a n d H o t e l I n t e r C o n t i n e n t a l S y d n e y . F o r i n f o r m a t i o n ,c o n t a c t T h e S e c r e t a r i a t , 1 0 t h I n t e r n a t i o n a l CF C o n g r e s s , GP O B o x 2 6 0 9 , S y d n e y , NSW,A u s t r a l i a 2 0 0 1

    4 2

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    DOI 10.1378/chest.93.1.381988;93; 38-42Chest

    Jeffrey Askanazi and Allen I. HymanPatti Klein, Marcia Kemper, Charles Weissman, Stanley H. Rosenbaum,

    Attenuation of the Hemodynamic Responses to Chest Physical Therapy

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    online article figure for directions.for teaching purposes in PowerPoint slide format. See anyFigures that appear in CHEST articles can be downloaded

    Copyright 1988 by the American College of Chest Physicianson May 14, 2009www.chestjournal.orgDownloaded from

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