Name: the perinatal asphyxiated lamb model: a model for newborn resuscitation
Uploaded: 2018-08-15T12:30:00
Description: Watch this Scientific Journal Video about The Perinatal Asphyxiated Lamb Model: A Model for Newborn Resuscitation at JoVE.com

Alle protokoller er blevet godkendt af institutionelle Animal Care og brug udvalg (IACUC) ved State University of New York Buffalo. En illustration af den metode, der skildrer invasive og non-invasiv overvågning er vist i figur 1.
1. dyr
<ol><li>Brug tid-dateret, Q-feber seronegative, gravide moderfår (blandet race, Suffolk-Dorset-Katahdin race) med føtal lam på 127-143 dage undervejs. Bemærk: Får udtrykket drægtighedsperioden er 145 dage og 127 drægt...

<ol>
	<li>Wyckoff, M. H., Berg, R. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optimizing+chest+compressions+during+delivery-room+resuscitation.">Optimizing chest compressions during delivery-room resuscitation.</a> Semin Fetal Neonatal Med. 13 (6), 410-415 (2008).</li><li>Black, R. E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Global,+regional,+and+national+causes+of+child+mortality+in+2008:+a+systematic+analysis.">Global, regional, and national causes of child mortality in 2008: a systematic analysis.</a> Lancet. 375 (9730), 1969-1987 (2010).</li><li>Guglani, L., Lakshminrusimha, S., Ryan, R. 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D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+fetal+circulation,+pathophysiology+of+hypoxemic+respiratory+failure+and+pulmonary+hypertension+in+neonates,+and+the+role+of+oxygen+therapy.">The fetal circulation, pathophysiology of hypoxemic respiratory failure and pulmonary hypertension in neonates, and the role of oxygen therapy.</a> J Perinatol. 36 Suppl 2, S3-S11 (2016).</li><li>Wyckoff, M. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Part+13:+Neonatal+Resuscitation:+2015+American+Heart+Association+Guidelines+Update+for+Cardiopulmonary+Resuscitation+and+Emergency+Cardiovascular+Care.">Part 13: Neonatal Resuscitation: 2015 American Heart Association Guidelines Update for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care.</a> Circulation. 132 (18 suppl 2), S543-S560 (2015).</li><li>Bhatt, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Delaying+cord+clamping+until+ventilation+onset+improves+cardiovascular+function+at+birth+in+preterm+lambs.">Delaying cord clamping until ventilation onset improves cardiovascular function at birth in preterm lambs.</a> J Physiol. 591 (Pt 8), 2113-2126 (2013).</li><li>Katheria, A. C., Brown, M. K., Rich, W., Arnell, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Providing+a+Placental+Transfusion+in+Newborns+Who+Need+Resuscitation).">Providing a Placental Transfusion in Newborns Who Need Resuscitation).</a> Front Pediatr. 5 (1), (2017).</li><li>Kapadia, V. S., Wyckoff, M. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Drugs+during+delivery+room+resuscitation--what,+when+and+why?.">Drugs during delivery room resuscitation--what, when and why?.</a> Semin Fetal Neonatal Med. 18 (6), 357-361 (2013).</li><li>Barcroft, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Researches on Pre-natal Life. 1, 292 (1946).</li><li>Dawes, G. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Foetal and Neonatal Physiosolgy. A Comparative Study of the Changes at Birth. , (1968).</li><li>Rudolph, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Congenital Diseases of the Heart: Clinical-Physiological Considerations. , 1-24 (2009).</li><li>Sobotka, K. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=An+initial+sustained+inflation+improves+the+respiratory+and+cardiovascular+transition+at+birth+in+preterm+lambs.">An initial sustained inflation improves the respiratory and cardiovascular transition at birth in preterm lambs.</a> Pediatr Res. 70 (1), 56-60 (2011).</li><li>Polglase, G. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Positive+end-expiratory+pressure+differentially+alters+pulmonary+hemodynamics+and+oxygenation+in+ventilated,+very+premature+lambs.">Positive end-expiratory pressure differentially alters pulmonary hemodynamics and oxygenation in ventilated, very premature lambs.</a> J Appl Physiol (1985). 99 (4), 1453-1461 (2005).</li><li>Lakshminrusimha, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Oxygen+concentration+and+pulmonary+hemodynamics+in+newborn+lambs+with+pulmonary+hypertension.">Oxygen concentration and pulmonary hemodynamics in newborn lambs with pulmonary hypertension.</a> Pediatr Res. 66 (5), 539-544 (2009).</li><li>Lakshminrusimha, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pulmonary+hemodynamics+in+neonatal+lambs+resuscitated+with+21%,+50%+and+100%+oxygen.">Pulmonary hemodynamics in neonatal lambs resuscitated with 21%, 50% and 100% oxygen.</a> Pediatr Res. 62 (3), 313-318 (2007).</li><li>Hooper, S. B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cardiovascular+transition+at+birth:+a+physiological+sequence.">Cardiovascular transition at birth: a physiological sequence.</a> Pediatr Res. 77 (5), 608-614 (2015).</li><li>Vali, P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evaluation+of+Timing+and+Route+of+Epinephrine+in+a+Neonatal+Model+of+Asphyxial+Arrest.">Evaluation of Timing and Route of Epinephrine in a Neonatal Model of Asphyxial Arrest.</a> J Am Heart Assoc. 6 (2), (2017).</li><li>Vali, P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Continuous+Chest+Compressions+During+Sustained+Inflations+in+a+Perinatal+Asphyxial+Cardiac+Arrest+Lamb+Model.">Continuous Chest Compressions During Sustained Inflations in a Perinatal Asphyxial Cardiac Arrest Lamb Model.</a> Pediatr Crit Care Med. , (2017).</li><li>Vali, P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hemodynamics+and+gas+exchange+during+chest+compressions+in+neonatal+resuscitation.">Hemodynamics and gas exchange during chest compressions in neonatal resuscitation.</a> PLoS One. 12 (4), e0176478 (2017).</li><li>Tana, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Determination+of+Lung+Volume+and+Hemodynamic+Changes+During+High-Frequency+Ventilation+Recruitment+in+Preterm+Neonates+With+Respiratory+Distress+Syndrome.">Determination of Lung Volume and Hemodynamic Changes During High-Frequency Ventilation Recruitment in Preterm Neonates With Respiratory Distress Syndrome.</a> Crit Care Med. 43 (8), 1685-1691 (2015).</li><li>Morin, F. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ligating+the+ductus+arteriosus+before+birth+causes+persistent+pulmonary+hypertension+in+the+newborn+lamb.">Ligating the ductus arteriosus before birth causes persistent pulmonary hypertension in the newborn lamb.</a> Pediatr Res. 25 (3), 245-250 (1989).</li><li>Morin, F. C., Egan, E. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pulmonary+hemodynamics+in+fetal+lambs+during+development+at+normal+and+increased+oxygen+tension.">Pulmonary hemodynamics in fetal lambs during development at normal and increased oxygen tension.</a> J Appl Physiol (1985). 73 (1), 213-218 (1992).</li><li>Morin, F. C., Egan, E. A., Ferguson, W., Lundgren, C. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+of+pulmonary+vascular+response+to+oxygen.">Development of pulmonary vascular response to oxygen.</a> Am J Physiol. 254 (3 Pt 2), H542-H546 (1988).</li><li>Rawat, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Neonatal+resuscitation+adhering+to+oxygen+saturation+guidelines+in+asphyxiated+lambs+with+meconium+aspiration.">Neonatal resuscitation adhering to oxygen saturation guidelines in asphyxiated lambs with meconium aspiration.</a> Pediatr Res. , (2015).</li><li>Chandrasekharan, P. K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Continuous+End-Tidal+Carbon+Dioxide+Monitoring+during+Resuscitation+of+Asphyxiated+Term+Lambs.">Continuous End-Tidal Carbon Dioxide Monitoring during Resuscitation of Asphyxiated Term Lambs.</a> Neonatology. 109 (4), 265-273 (2016).</li><li>Lakshminrusimha, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tracheal+suctioning+improves+gas+exchange+but+not+hemodynamics+in+asphyxiated+lambs+with+meconium+aspiration.">Tracheal suctioning improves gas exchange but not hemodynamics in asphyxiated lambs with meconium aspiration.</a> Pediatr Res. 77 (2), 347-355 (2015).</li><li>Meuli, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+utero+surgery+rescues+neurological+function+at+birth+in+sheep+with+spina+bifida.">In utero surgery rescues neurological function at birth in sheep with spina bifida.</a> Nat Med. 1 (4), 342-347 (1995).</li><li>Meuli, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Creation+of+myelomeningocele+in+utero:+a+model+of+functional+damage+from+spinal+cord+exposure+in+fetal+sheep.">Creation of myelomeningocele in utero: a model of functional damage from spinal cord exposure in fetal sheep.</a> J Pediatr Surg. 30 (7), 1028-1032 (1995).</li><li>Adzick, N. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Correction+of+congenital+diaphragmatic+hernia+in+utero.+IV.+An+early+gestational+fetal+lamb+model+for+pulmonary+vascular+morphometric+analysis.">Correction of congenital diaphragmatic hernia in utero. IV. An early gestational fetal lamb model for pulmonary vascular morphometric analysis.</a> J Pediatr Surg. 20 (6), 673-680 (1985).</li><li>Harrison, M. R., Bressack, M. A., Churg, A. M., de Lorimier, A. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Correction+of+congenital+diaphragmatic+hernia+in+utero.+II.+Simulated+correction+permits+fetal+lung+growth+with+survival+at+birth.">Correction of congenital diaphragmatic hernia in utero. II. Simulated correction permits fetal lung growth with survival at birth.</a> Surgery. 88 (2), 260-268 (1980).</li><li>Turley, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Intrauterine+cardiothoracic+surgery:+the+fetal+lamb+model.">Intrauterine cardiothoracic surgery: the fetal lamb model.</a> Ann Thorac Surg. 34 (4), 422-426 (1982).</li><li>Reddy, V. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+utero+placement+of+aortopulmonary+shunts.+A+model+of+postnatal+pulmonary+hypertension+with+increased+pulmonary+blood+flow+in+lambs.">In utero placement of aortopulmonary shunts. A model of postnatal pulmonary hypertension with increased pulmonary blood flow in lambs.</a> Circulation. 92 (3), 606-613 (1995).</li><li>Hemway, R. J., Christman, C., Perlman, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+3:1+is+superior+to+a+15:2+ratio+in+a+newborn+manikin+model+in+terms+of+quality+of+chest+compressions+and+number+of+ventilations.">The 3:1 is superior to a 15:2 ratio in a newborn manikin model in terms of quality of chest compressions and number of ventilations.</a> Arch Dis Child Fetal Neonatal Ed. 98 (1), F42-F45 (2013).</li><li>Solev&#229;g, A. L., Schm&#246;lzer, G. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optimal+Chest+Compression+Rate+and+Compression+to+Ventilation+Ratio+in+Delivery+Room+Resuscitation:+Evidence+from+Newborn+Piglets+and+Neonatal+Manikins.">Optimal Chest Compression Rate and Compression to Ventilation Ratio in Delivery Room Resuscitation: Evidence from Newborn Piglets and Neonatal Manikins.</a> Frontiers in Pediatrics. 5 (3), (2017).</li><li>Solev&#229;g, A. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chest+compressions+in+newborn+animal+models:+A+review.">Chest compressions in newborn animal models: A review.</a> Resuscitation. 96, 151-155 (2015).</li></ol>

Modellens lam er sammenlignelige i størrelse til menneskelige nyfødte og giver mulighed for nem instrumentering til at måle invasive hæmodynamiske variabler. Føtal/nyfødte lam model har været en uvurderlig analyseværktøj, som rigt har bidraget til forståelsen af de skifter omsætning, samt den nyfødte lunge- og hjerte-kar-fysiologi. Flere eksperimentelle lam modeller har været etableret i år at studere optimal ventilation strategier i præmature lam13,14</...

Perinatal asfyksi forekommer i ca 4 pr. 1.000 sigt fødsler i USA og er ansvarlig for ca. 25% af de 4 millioner neonatale dødsfald på verdensplan1,2. Hele fosterets naturlige udvikling, skal flere tilpasninger finde sted i løbet af arbejdskraft og ved fødslen at muliggøre en problemfri overgang fra intra - extrauterine miljøet når lungerne påtage sig rollen af moderkagen som orgel af luftskiftet. Enhver fejl i nyfødte til tilstrækkeligt overgang ved fødslen yderligere kompromiser genoplivning indsats. Tilfælde, hvor fosterets lunge clearance er ufuldstændig eller forsinket3,4, og omstændigheder, der resulterer i et vedvarende højt pulmonal vaskulær resistance (PVR)5 virkning effekten af ventilation, som stadig er den mest vigtige indgreb i genoplivning af den asphyxiated nyfødte6. Derudover kan øjeblikkelig fastspænding af navlestrengen og fjernelse af lav modstand moderkagen føre til bratte ændringer i hjertets minutvolumen, der kan forårsage Myokardie dysfunktion7,8.
På grund af den sjældne aggressiv genoplivning (behovet for brystet kompression og/eller adrenalin administration)1,9er der en mangel på stærke beviser fra store randomiserede kliniske forsøg for at støtte nuværende neonatal genoplivning program (NRP) retningslinjer. Mange translationel forskningsundersøgelser i neonatal genoplivning er udført ved hjælp af postnatal dyremodeller (især pattegrise), der undlader at tilstrækkeligt skildrer den skiftes føtale cirkulation og væskefyldte lungerne forbundet til nyfødt i leveringen værelse. I betragtning af de unikke udfordringer i forbindelse med overgangen fra føtale cirkulation til neonatal omsætning, er perinatal kvalt hjertestop føtal lam model ideel til at studere nyfødte genoplivning fysiologi.
Undersøgelser af Joseph Barcroft på føtal lam så tidligt som 1930 ' erne, lagde fundamentet for føtal og neonatal fysiologi10. I anden halvdel af det 20. århundrede, Geoffrey Dawes' innovative og omhyggelige forsøg på føtal lamb modeller og senere dem af Abraham Rudolph bidraget gevaldig til viden om hjerte-kar- og pulmonal fysiologi i fosteret 11 , 12. i de seneste år, undersøgelser på fosterets/neonatal lam modeller har givet en bedre forståelse af virkningerne af ventilation på Hæmodynamik13,14, virkningerne af iltning på PVR15,16, samt de kredsløbssygdomme ændringer, der opstår under ledningen fastspænding7,17. Endelig, i det forløbne år, den nyfødte lam har fungeret som en ny model til at studere de hæmodynamiske virkninger under genoplivning18,19,20. En trinvis fortælling om hvad er involveret i at gennemføre en lam eksperiment, samt en detaljeret beskrivelse af de kirurgiske Instrumentation og den eksperimentelle metode vil blive præsenteret.

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	<tbody>
		<tr height="20">
			<td height="20" style="height:20px;">Babcock forceps</td>
			<td>Miltex</td>
			<td>16-44</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:216px;">Blood pressure transducer</td>
			<td style="width:192px;">Becton Dickinson</td>
			<td style="width:211px;">P23XL-1</td>
			<td style="width:200px;">Used with saline filled diaphragm domes</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Blunt tipped scissors</td>
			<td style="width:192px;">Miltex</td>
			<td style="width:211px;">98SCS50-56</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:216px;">Capnograph</td>
			<td style="width:192px;">Philips</td>
			<td style="width:211px;">7900</td>
			<td style="width:200px;">Used with Neonatal Flow Sensors</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Cautery pencil</td>
			<td style="width:192px;">Valley Lab</td>
			<td style="width:211px;">287879</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Cautery unit</td>
			<td style="width:192px;">Valley Lab</td>
			<td style="width:211px;">SSE2K</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Curved Forceps</td>
			<td style="width:192px;">Everost</td>
			<td style="width:211px;">711714</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Data acquisition software</td>
			<td style="width:192px;">Biopac Systems Inc.</td>
			<td style="width:211px;">ACK100W</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">EKG</td>
			<td style="width:192px;">Biopac Systems Inc.</td>
			<td style="width:211px;">ECG100C</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Endotracheal tube -cuffed</td>
			<td style="width:192px;">Rusch</td>
			<td style="width:211px;">111780035</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Flow modulator</td>
			<td style="width:192px;">Transonic Systems Inc.&#160;</td>
			<td style="width:211px;">T403</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Flow-probe</td>
			<td style="width:192px;">Transonic Systems Inc.&#160;</td>
			<td style="width:211px;">MC4PSS-LS-WC100-CM4B-GA</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:216px;">Gastric tube</td>
			<td style="width:192px;">Jorgensen Labs Inc.</td>
			<td style="width:211px;">J0106LE</td>
			<td style="width:200px;">To decompress and drain ewe stomach</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Hair clipper</td>
			<td style="width:192px;">Andis Company</td>
			<td style="width:211px;">65340</td>
			<td style="width:200px;">&#160;# 40 Clipper Blade</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Infant radiant warmer</td>
			<td>GE healthcare</td>
			<td>7810</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Intravenous catheters</td>
			<td>Becton Dickinson</td>
			<td>381234</td>
			<td style="width:200px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Iris surgical scissors</td>
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			<td style="width:211px;">510535</td>
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			<td height="21" style="height:21px;width:216px;">Mosquito Forceps</td>
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			<td style="width:211px;">1-74</td>
			<td style="width:200px;"></td>
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			<td height="21" style="height:21px;width:216px;">Near-infrared spectroscopy</td>
			<td style="width:192px;">Nonin Medical Inc.&#160;</td>
			<td style="width:211px;">X-100M</td>
			<td style="width:200px;">Sensmart Equanox &#38; PureSAT</td>
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		<tr height="21">
			<td height="21" style="height:21px;width:216px;">RSO2 Sensor</td>
			<td style="width:192px;">Nonin Medical Inc.&#160;</td>
			<td style="width:211px;">8004CB-NA</td>
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		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Scalpel handle and blade</td>
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			<td>707203</td>
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			<td height="42" style="height:42px;width:216px;">Sutures -silk 2-0</td>
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			<td height="42" style="height:42px;width:216px;">Sutures -vicryl&#160; 2-0</td>
			<td style="width:192px;">Ethicon</td>
			<td style="width:211px;">J269H</td>
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			<td height="20" style="height:20px;">T-piece resuscitator</td>
			<td>Neo-Tee</td>
			<td>MCM1050812</td>
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			<td height="21" style="height:21px;width:216px;">Umbilical ties</td>
			<td style="width:192px;">Jorgensen Labs Inc.</td>
			<td>J0025UA</td>
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		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Weitlander Retractor</td>
			<td style="width:192px;">Miltex</td>
			<td style="width:211px;">11-625</td>
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	</tbody>
</table>

the perinatal asphyxiated lamb model: a model for newborn resuscitation

Fødslen asfyksi tegner sig for næsten en million dødsfald på verdensplan hvert år, og er en af de primære årsager til tidlig neonatal sygelighed og dødelighed. Mange aspekter af de nuværende retningslinjer for neonatal genoplivning er fortsat kontroversielt givet vanskeligheder med at gennemføre randomiserede kliniske forsøg på grund af den sjældne og ofte uforudsigelige behov for omfattende genoplivning. De fleste undersøgelser på neonatal genoplivning stammer fra attrappen modeller, der ikke virkelig afspejler fysiologiske ændringer eller Grisling modeller der har ryddet deres lunge væske og der har fuldført overgangen fra fostrets til neonatal omsætning. Denne protokol indeholder en detaljeret trin for trin beskrivelse om hvordan man opretter en perinatal kvalt føtal lam model. Den foreslåede model har en skifter omsætning og væskefyldte lunger, som efterligner menneskelige nyfødte efter levering, og er derfor en fremragende dyremodel til at studere nyfødte fysiologi. En vigtig begrænsning til lam eksperimenter er den højere tilknyttede omkostninger.

Efter instrumentering af de føtale lam, hæmodynamiske variabler kan være optaget (figur 3 og figur 4), derefter analyseret og fortolket (figur 5). Hyppige blodprøver kan indsamles, og figur 6 viser pH og PaCO2 data fra en af eksperimenterne. Lejlighedsvis, katetre eller flow sonder kan funktionsfejl eller få forskubbet og data kan derfor ikke være indsam...

Watch this Scientific Journal Video about The Perinatal Asphyxiated Lamb Model: A Model for Newborn Resuscitation at JoVE.com

The Perinatal Asphyxiated Lamb Model: A Model for Newborn Resuscitation

Invasive instrumentation føtal Lammets giver præcise fysiologiske målinger af den skifter omsætning i en model, der nøje efterligner det nyfødte spædbarn.

Den Perinatal kvalt lam Model: En Model for nyfødte genoplivning

Birth asphyxia accounts for nearly one million deaths worldwide each year, and is one of the primary causes of early neonatal morbidity and mortality. ...

Research

JoVE Journal

Medicine

Normothermic Cardiac Arrest and Cardiopulmonary Resuscitation: A Mouse Model of Ischemia-Reperfusion Injury

Acute Kidney Injury (AKI) is a common, highly lethal, complication of critical illness which has a high mortality1-4 and which is most 
frequently caused ...

A Rat Model of Ventricular Fibrillation and Resuscitation by Conventional Closed-chest Technique

En rotte model af ventrikelflimren og genoplivning ved konventionel Closed-bryst Teknik

A rat model of electrically-induced ventricular fibrillation followed by cardiac resuscitation using a closed chest technique that incorporates the basic ...

A Piglet Model of Neonatal Hypoxic-Ischemic Encephalopathy

En Grisling Model for Neonatal Hypoksisk-iskæmisk encephalopati

Birth asphyxia, which causes hypoxic-ischemic encephalopathy (HIE), accounts for 0.66 million deaths worldwide each year, about a quarter of the ...

Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation

Breast Milk Enhances Growth of Enteroids: An Ex Vivo Model of Cell Proliferation

Modermælk øger væksten af Enteroids: en Ex Vivo Model af celledelingen

Human small intestinal enteroids are derived from the crypts and when grown in a stem cell niche contain all of the epithelial cell types. The ability to ...

Isometric Contractility Measurement of the Mouse Mesenteric Artery Using Wire Myography

Isometrisk kontraktilitet måling af musen mesenterica arterie ved hjælp af Wire blodkar

The wire myograph technique is used to assess the contractility of vascular smooth muscles in response to depolarization, GPCR agonists/inhibitors and ...

The Lower Body Positive Pressure Treadmill for Knee Osteoarthritis Rehabilitation

Den nedre krop positive tryk løbebånd for knæ slidgigt rehabilitering

Here, based on a clinician&rsquo;s point-of-view, we propose a two-model lower body positive pressure (LBPP) protocol (walking and squatting models) in ...

Noninvasive Electrocardiography in the Perinatal Mouse

Noninvasive Elektrokardiografi i perinatal mus

Electrocardiography (ECG) has long been relied upon as an effective and reliable method of assessing cardiovascular (and cardiopulmonary) function in both ...

A Murine Model of Fetal Exposure to Maternal Inflammation to Study the Effects of Acute Chorioamnionitis on Newborn Intestinal Development

En Murine Model af fostereksponering for mødrebetændelse for at studere virkningerne af akut chorioamnionitis på nyfødte tarm udvikling

Chorioamnionitis is a common precipitant of preterm birth and is associated with many of the morbidities of prematurity, including necrotizing ...

Effect of Hyaluronic Acid 35 kDa on an In Vitro Model of Preterm Small Intestinal Injury and Healing Using Enteroid-Derived Monolayers

Effect of Hyaluronic Acid 35 kDa on an In Vitro Model of Preterm Small Intestinal Injury and Healing Using Enteroid-Derived Monolayers

Effekt af hyaluronsyre 35 kDa på en in vitro-model af for tidlig tarmskade og heling ved hjælp af enteroidafledte monolag

In vitro scratch wound assays are commonly used to investigate the mechanisms and characteristics of epithelial healing in a variety of tissue types. ...

In Vitro Apical-Out Enteroid Model of Necrotizing Enterocolitis

In Vitro Apical-Out Enteroid Model of Necrotizing Enterocolitis

In vitro Apikal-out enteroid model af nekrotiserende enterocolitis

Necrotizing enterocolitis (NEC) is a devastating disease affecting preterm infants, characterized by intestinal inflammation and necrosis. Enteroids have ...