Abstract
Objective
To evaluate the impact that monitored acute stroke unit care may have on the risk of early neurological deterioration (END), and 90-day mortality and mortality-disability.
Methods
Non-randomized prospective study with consecutive patients with acute ischemic stroke (AIS) admitted to a conventional care stroke unit (CCSU), from May 2003 to April 2005, or to a monitored acute stroke unit (ASU) from May 2005 to April 2006. END was defined as an increase in the NIHSS score ≥ 4 points in the first 72 hours after admission.
Results
END was detected in 19.6 % of patients (11.2 % of patients admitted to the ASU and 23.8 % to the CCSU; p < 0.0001). Patients admitted to the ASU received more treatment with intravenous rtPa (13.5 % versus 4.2 %; p < 0.0001), had a shorter length of stay (9.1 [11.0] d versus 13.1 [10.4] d; p < 0.0001), lower 90-day mortality (10.2 % versus 17.3 %; p = 0.02), and lower mortality-disability at 90-days (28.4 % versus 40.2 %; p = 0.004) than those admitted to the CCSU. Multivariable analysis showed that ASU admission was a protector for END (OR: 0.37; 95 % CI: 0.23–0.62). On admission, higher NIHSS (OR: 1.06; 95 % CI: 1.03–1.10), higher glycaemia (OR: 1.003; 95 % CI: 1.001–1.006), and higher systolic pressure (OR: 1.01; 95 % CI: 1.002–1.017) were independent predictors of END.
Conclusions
END prevention by ASU care might be a key factor contributing to better outcome and decrease of length of stay in patients admitted to monitored stroke units.
Similar content being viewed by others
References
Aho K, Harmsen P, Hatano S, MarquardsenJ, Smirnov VE, Strasser T(1980) Cerebrovascular disease in thecommunity: results of a WHO collaborativestudy. Bull World Health Org58:113–130
Alvarez FJ, Segura T, Castellanos M,Leira R, Blanco M, Castillo J, DávalosA, Serena J (2004) Cerebral hemodynamicreserve and early neurologicdeterioration in acute ischemic stroke.J Cereb Blood Flow Metab 24:1267–1271
Candelise L, Gattinoni M, Bersano A,Micieli G, Sterzi R, Morabito A, on thebehalf of the PROSIT Study Group(2007) Stroke-unit care for acutestroke patients: an observationalfollow-up study. Lancet 369:299–305
Castillo J, Dávalos A, Noya M (1997)Progression of ischaemic stroke andexcitotoxic aminoacids. Lancet 349:79–83
Castillo J, Leira R (2001) Predictors ofdeteriorating cerebral infarct: role ofinflammatory mechanisms. Would itsearly treatment be useful? CerebrovascDis 11(Suppl 1):40–48
Cavallini A, Micieli G, Marcheselli S,Quaglini S (2003) Role of monitoringin management of acute ischemicstroke patients. Stroke 34:2599–2603
Davenport RJ, Dennis MS, Wellwood I,Warlow CP (1996) Complications afteracute stroke. Stroke 27:415–420
DeGraba TJ, Hallenbeck JM, PettigrewKD, Dutka AJ, Kelly BJ (1999) Progressionin acute stroke: value of the initialNIH Stroke Scale score on patientstratification in future trials. Stroke30:1208–1212
Evans A, Harraf F, Donaldson N, KalraL (2002) Randomized controlled studyof stroke unit care versus stroke teamcare in different stroke subtypes.Stroke 33:449–455
Glader EL, Stegmayr B, Johansson L,Hulter-Åsberg K, Wester PO (2001)Differences in long-term outcomesbetween patients treated in strokeunits and in general wards. A 2 yearfollow-up of stroke patients in Sweden.Stroke 32:2124–2130
Goldstein LR, Samsa GP (1997) Reliabilityof the National Institutes ofHealth Stroke Scale. Extension to nonneurologistsin the context of a clinicaltrial. Stroke 28:307–310
Grotta JC, Welch KMA, Fagan SC, LuM, Frankel MR, Brott T, Levine SR,Lyden PD (2000) Clinical deteriorationfollowing improvement in the NINDSrt-PA Stroke Trial. Stroke 32:661–668
Gubitz G, Sandercock P (2002) Strokemanagement. Clin Evid 161–174
Indredavik B, Bakke F, Slørdahl SA,Rokseth R, Håheim LL (1997) Strokeunit treatment. Long-term effects.Stroke 28:1861–1866
Johnston KC, Li JY, Lyden PD, HansonSK, Feasby TE, Adams RJ, Faught RE Jr,Haley EC Jr (1998) Medical and neurologicalcomplications of ischemicstroke: experience from the Ranttastrial. Ranttas investigators. Stroke29:447–453
Jorgensen HS, Nakayama H, RaaschouHO, Olsen TS (1994) Effect of bloodpressure and diabetes on stroke inprogression. Lancet 344:156–159
Kapral MK, Laupacis A, Phillips SJ,Silver FL, Hill MD, Fang J, Richards J,Tu JV (2004) Investigators of the Registryof the Canadian Stroke NetworkStroke care delivery in institutionsparticipating in the Registry of theCanadian Stroke Network. Stroke 35:1756–1762
Langhorne P, Stott DJ, Robertson L,MacDonald J, Jones L, McAlpine C,Dick F, Taylor GS, Murray G (2000)Medical complications after stroke: amulticenter study. Stroke 31:1223–1229
Rocco A, Pasquini M, Cecconi E,Sirimarco G, Ricciardi MC, Vicenzini E,Altieri M, Di Piero V, Lenzi GL (2007)Monitoring after the acute stage ofstroke: a prospective study. Stroke38:1225–1228
Roden-Jullig A, Britton M (2000) Effectivenessof heparin treatment for progressingischemic stroke: before andafter study. J Int Med 248:287–291
Roden-Jullig A, Britton M, MalmkvistK, Leijd B (2003) Aspirin in the preventionof progressing stroke: a randomisedcontrolled study. J Int Med254:584–590
Seenan P, Long M, Langhorne P (2007)Stroke Units in Their Natural Habitat.Systematic Review of ObservationalStudies. Stroke 38:1886–1892
Serena J, Rodríguez-Yáñez M, CastellanosM (2006) Deterioration in AcuteIschemic Stroke as the Target forNeuroprotection. Cerebrovasc Dis21:80–88
Silva Y, Puigdemont M, Castellanos M,Serena J, Suner RM, Garcia MM,Dávalos A (2005) Semi-intensivemonitoring in acute stroke and long-termoutcome. Cerebrovasc Dis 19:23–30
Stroke Unit Trialists’ Collaboration(1997) Collaborative systematic reviewof the randomised trials of organisedinpatient (stroke unit) care afterstroke. BMJ 314:1151–1159
Sulter G, Elting JW, Langedijk M,Maurits NM, De Keyser J (2003) Admittingacute ischemic stroke patientsto a stroke care monitoring unit versusa conventional stroke unit: a randomizedpilot study. Stroke 34:101–104
Toni D, Fiorelli M, Gentile M, BastianelloS, Sacchetti ML, Argentino C,Pozzilli C, Fieschi C (1995) Progressingneurological deficit secondary to acuteischemic stroke: a study on predictability,pathogenesis and prognosis.Arch Neurol 52:670–675
Weimar C, Mieck T, Buchthal J, EhrenfeldCE, Schmid E, Diener HC. GermanStroke Study Collaboration (2005)Neurologic Worsening During theAcute Phase of Ischemic Stroke. ArchNeurol 62:393–397
Warlow C, Wardlaw J (2003) Therapeuticthrombolysis for acute ischaemicstroke. BMJ 326:233–234
Author information
Authors and Affiliations
Corresponding author
Additional information
Funding This study was funded in part by the Ministerio de Sanidad y Consumo, Instituto de Salud Carlos III (Red HERACLES RD06/0009), and by FIS Number PI051737.
Rights and permissions
About this article
Cite this article
Roquer, J., Rodríguez-Campello, A., Gomis, M. et al. Acute stroke unit care and early neurological deterioration in ischemic stroke. J Neurol 255, 1012–1017 (2008). https://doi.org/10.1007/s00415-008-0820-z
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00415-008-0820-z