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- Albertsson, Per, 1956, et al.
(författare)
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Morbidity and use of medical resources in patients with chest pain and normal or near-normal coronary arteries.
- 1997
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Ingår i: The American journal of cardiology. - : Excerpta Medica, Inc.. - 0002-9149 .- 1879-1913. ; 79:3, s. 299-304
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Tidskriftsartikel (refereegranskat)abstract
- To evaluate morbidity and use of medical resources in patients with chest pain and normal or near-normal coronary angiograms: 2,639 consecutive patients who underwent coronary angiograms due to chest pain were registered. Two years thereafter all patients who showed normal or near-normal coronary angiograms were approached with a questionnaire regarding hospitalization during the last 4 years (2 years before and 2 years after angiography). All medical files were also examined. Of the patients who underwent angiography, 163 (6%) had no significant stenoses, and of these, 113 showed complete normal angiograms and 50 showed mild (i.e. <50%) stenoses. During the 2 years before diagnostic angiogram, 66% of the patients were hospitalized compared with only 35% during 2 years after angiography (p <0.001). The reduction in hospitalization was due to curtailed utilization of medical resources for cardiac reasons; mean days in hospital was 6.6 days before angiography versus 2.8 days after (p <0.001). There were no significant differences in hospitalization when comparing patients with mild stenoses and completely normal angiograms. There were, furthermore, no differences between patients with positive or negative exercise tests. Thus, the need for hospitalization is significantly reduced after a diagnostic angiogram reveals normal or near-normal coronary arteries.
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| 2. |
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| 3. |
- Andréassob, A-Ch, et al.
(författare)
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Characteristics and outcome among patients with a suspected in hospital cardiac arrest
- 1998
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Ingår i: Resuscitation. - : Elsevier Ireland Ltd. - 0300-9572 .- 1873-1570. ; 39:1-2, s. 23-31
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Tidskriftsartikel (refereegranskat)abstract
- AIM: To describe the characteristics and outcome among patients with a suspected in-hospital cardiac arrest. METHODS: All the patients who suffered from a suspected in-hospital cardiac arrest during a 14-months period, where the cardiopulmonary resuscitation (CPR) team was called, were recorded and described prospectively in terms of characteristics and outcome. RESULTS: There were 278 calls for the CPR team. Of these, 216 suffered a true cardiac arrest, 16 a respiratory arrest and 46 neither. The percentage of patients who were discharged alive from hospital was 42% for cardiac arrest patients, 62% for respiratory arrest and 87% for the remaining patients. Among patients with a cardiac arrest, those found in ventricular fibrillation/ventricular tachycardia had a survival rate of 64%, those found in asystole 24% and those found in pulseless electrical activity 10%. Among patients who were being monitored at the time of arrest, the survival rate was 52%, as compared with 27% for non-monitored patients (P= 0.001). Among survivors of cardiac arrest, a cerebral performance category (CPC) of 1 (no major deficit) was observed in 81% at discharge and in 82% on admission to hospital prior to the arrest. CONCLUSION: We conclude that, during a 14-month period at Sahlgrenska University Hospital in Göteborg, almost half the patients with a cardiac arrest in which the CPR team was called were discharged from hospital. Among survivors, 81% had a CPC score of 1 at hospital discharge. Survival seems to be closely related to the relative effectiveness of the resuscitation organisation in different parts of the hospital.
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| 5. |
- Atanasiu, Dragu
(författare)
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A Levy-Khinchine formula for semigroups and related problems:an adapted space approach
- 1996
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Ingår i: Journal of Mathematical Analysis and Applications. - 0022-247X .- 1096-0813. ; 198:1, s. 237-247
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Tidskriftsartikel (refereegranskat)abstract
- In this paper we use a Choquet type theorem on adapted spaces to obtain or reobtain some results in harmonic analysis on semigroups. Thus we give a L ́evy]Khinchine formula for some negative definite functions defined on a com- mutative semigroup with neutral element, we prove that completely monotonic Žresp. alternating. functions are completely positive Žresp. negative. definite, we characterize the completely monotonic and the completely alternating func- tions defined on N* [ 1, 2, 3, . . . 4, and we consider a Stieltjes’ moment problem.
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| 6. |
- Atanasiu, Dragu
(författare)
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Bi –fonctions moment
- 1991
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Ingår i: Mathematica Scandinavica. - 0025-5521 .- 1903-1807. ; 69:1, s. 152-160
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Tidskriftsartikel (refereegranskat)
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| 7. |
- Atanasiu, Dragu
(författare)
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Laplace integral on rational numbers
- 1995
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Ingår i: Mathematica Scandinavica. - 0025-5521 .- 1903-1807. ; 76:1, s. 152-160
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Tidskriftsartikel (refereegranskat)
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| 8. |
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| 9. |
- Atanasiu, Dragu
(författare)
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Levy-Khinchine formulas independent of a Levy function
- 1997
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Ingår i: Journal of Mathematical Analysis and Applications. - : Elsevier. - 0022-247X .- 1096-0813. ; 213:1, s. 340-353
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Tidskriftsartikel (refereegranskat)abstract
- In this paper we obtain integral representations, independent of a L ́evy function, for negative definite functions with real part bounded below defined on a commu- tative involutive semigroup and for continuous negative definite functions defined on the group Rn
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| 10. |
- Atanasiu, Dragu
(författare)
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The quadratic form in the Levy-Khinchin formula on semigroups
- 1998
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Ingår i: Proceedings of the American Mathematical Society. - 0002-9939 .- 1088-6826. ; 126:5, s. 1507-1514
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Tidskriftsartikel (refereegranskat)abstract
- In this paper we obtain the quadratic form in the Lévy-Khinchin formula on a commutative involutive semigroup, with a neutral element, as a sum of two simpler quadratic forms.
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