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Svendsen CD, Kuiper KKJ, Ostridge K, Larsen TH, Nielsen R, Hodneland V, Nordeide E, Bakke PS, Eagan TM. Factors associated with coronary heart disease in COPD patients and controls. PLoS One 2022; 17:e0265682. [PMID: 35476713 PMCID: PMC9045629 DOI: 10.1371/journal.pone.0265682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 03/04/2022] [Indexed: 11/21/2022] Open
Abstract
Background COPD and coronary heart disease (CHD) frequently co-occur, yet which COPD phenotypes are most prone to CHD is poorly understood. The aim of this study was to see whether COPD patients did have a true higher risk for CHD than subjects without COPD, and to examine a range of potential factors associated with CHD in COPD patients and controls. Methods 347 COPD patients and 428 non-COPD controls, were invited for coronary computed tomography angiography (CCTA) and pulmonary CT. Arterial blood gas, bioelectrical impedance and lung function was measured, and a detailed medical history taken. The CCTA was evaluated for significant coronary stenosis and calcium score (CaSc), and emphysema defined as >10% of total area <-950 Hounsfield units. Results 12.6% of the COPD patients and 5.7% of the controls had coronary stenosis (p<0.01), whereas 55.9% of the COPD patients had a CaSc>100 compared to 31.6% of the controls (p<0.01). In a multivariable model adjusting for sex, age, body composition, pack-years, CRP, cholesterol/blood pressure lowering medication use and diabetes mellitus, the OR (95% CI) for having significant stenosis was 1.80 (0.86–3.78) in COPD patients compared with controls. In a similar model, the OR (95% CI) for having CaSc>100 was 1.68 (1.12–2.53) in COPD patients compared with controls. Examining the risk of significant stenosis and CaSc>100 among COPD patients, no variable was associated with significant stenosis, whereas male sex [OR 2.85 (1.56–5.21)], age [OR 3.74 (2.42–5.77)], statin use [OR 2.23 (1.23–4.50)] were associated with CaSc>100, after adjusting for body composition, pack-years, C-reactive protein, use of angiotensin converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs), diabetes, emphysema score, GOLD category, exacerbation frequency, eosinophilia, and hypoxemia. Conclusion COPD patients were more likely to have CHD, but neither emphysema score, lung function, exacerbation frequency, nor hypoxemia predicted presence of either coronary stenosis or CaSc>100.
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Affiliation(s)
- Christina D. Svendsen
- Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
- * E-mail:
| | - Karel K. J. Kuiper
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Kristoffer Ostridge
- Faculty of Medicine, Clinical and Experimental Sciences, University of Southampton, Southampton, United Kingdom
- Translational Science and Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Terje H. Larsen
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Rune Nielsen
- Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Vidar Hodneland
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Eli Nordeide
- Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
| | - Per S. Bakke
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Tomas M. Eagan
- Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
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Frantzen AT, Eide LSP, Fridlund B, Haaverstad R, Hufthammer KO, Kuiper KKJ, Lauck S, Ranhoff AH, Rudolph JL, Skaar E, Norekvål TM. Frailty Status and Patient-Reported Outcomes in Octogenarians Following Transcatheter or Surgical Aortic Valve Replacement. Heart Lung Circ 2021; 30:1221-1231. [PMID: 33714672 DOI: 10.1016/j.hlc.2020.10.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/23/2020] [Accepted: 10/22/2020] [Indexed: 01/11/2023]
Abstract
BACKGROUND Frailty status and patient-reported outcomes are especially pertinent in octogenarians following transcatheter aortic valve implantation (TAVI) and surgical aortic valve replacement (SAVR) to guide treatment decisions and promote patient-centred care. AIM We aimed to determine if frailty changed 6 months after aortic valve replacement (AVR) in octogenarians, and to describe changes in self-rated health according to frailty status in patients who underwent TAVI or SAVR. METHOD In a prospective cohort study, frailty and self-rated health were measured one day prior to and 6 months after AVR. Frailty status was measured with the Study of Osteoporotic Fracture index. Self-rated health was measured comprehensively with the disease-specific Minnesota Living with Heart Failure Questionnaire, the generic Medical Outcomes Study Short Form-12 questionnaire (SF-12), and two global questions from The World Health Organization Quality of Life Instrument Abbreviated. RESULTS Data were available for 143 consecutive patients (mean age 83±2.7 years, 57% women; 45% underwent TAVI). At baseline, 34% were robust, 27% prefrail, and 39% frail. Overall, there was no change in the distribution of frailty status 6 months after baseline (p=0.13). However, on an individual level 65 patients changed frailty status after AVR (40 patients improved and 25 declined). Improvement in frailty status was common in prefrail (33%; n=13) and frail patients (48%; n=27). Patients had improved self-rated health after AVR, with significant differences between frailty states both at baseline (SF-12 physical: 37.4 [robust], 33.1 [prefrail], 31.6 [frail], p=0.03); SF-12 mental: 51.9 [robust], 50.8 [prefrail], 44.5 [frail], p<0.001); and at the 6-month follow-up (SF-12 physical: 45.4 [robust], 38.3 [prefrail], 32.1 [frail], p<0.001); SF-12 mental: 54.9 [robust], 49.6 [prefrail], 46.8 [frail], p=0.002). CONCLUSIONS Advanced treatment performed in a high-risk population allowed people to improve their self-rated health. Although frailty is associated with poor self-rated health, frailty status does not equal negative outcomes. The frail patients were those who improved most in self-rated physical and mental health. They had the lowest baseline self-rated health scores and had therefore the most to gain.
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Affiliation(s)
| | - Leslie S P Eide
- Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Bengt Fridlund
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; Centre of Interprofessional Collaboration within Emergency care (CICE), Linnaeus University, Växjö, Sweden
| | - Rune Haaverstad
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
| | | | - Karel K J Kuiper
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Sandra Lauck
- Centre for Heart Valve Innovation, St. Paul's Hospital, Vancouver, Canada; School of Nursing, University of British Columbia, Vancouver, Canada
| | - Anette H Ranhoff
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - James L Rudolph
- Center for Gerontology, Brown School of Public Health, Brown University, Providence, USA
| | - Elisabeth Skaar
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Tone M Norekvål
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway; Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Bergen, Norway; Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway.
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Eide LS, Ranhoff AH, Lauck S, Fridlund B, Haaverstad R, Hufthammer KO, Kuiper KKJ, Nordrehaug JE, Norekvål TM. Indwelling urinary catheters, aortic valve treatment and delirium: a prospective cohort study. BMJ Open 2018; 8:e021708. [PMID: 30389757 PMCID: PMC6224736 DOI: 10.1136/bmjopen-2018-021708] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 05/23/2018] [Accepted: 10/05/2018] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVES To determine whether an association exists between delirium and length of time indwelling urine catheters (IUC) are used in octogenarian patients treated with surgical aortic valve treatment (SAVR) or transcatheter aortic valve implantation (TAVI). DESIGN Prospective cohort study. SETTING Tertiary university hospital covering the western region of Norway. PARTICIPANTS Octogenarian patients undergoing elective SAVR or TAVI and willing to participate in the study were eligible. Patients unable to speak Norwegian were excluded. Between 2011 and 2013, 143 consecutive patients were included, and data from 136 of them are presented. PRIMARY OUTCOME Delirium. RESULTS Logistic regression analysis shows that lower cognitive function was positively associated with delirium (OR 0.86, CI 0.74 to 0.99, p=0.047). Besides, the interaction term in the model shows that IUC use and delirium differed between SAVR and TAVI patients (p=0.04). The difference corresponded to a weaker association between hours of IUC use and delirium for SAVR (OR 1.01, CI: 0.99 to 1.03, p=0.54) compared with that for TAVI (OR 1.04, CI: 1.01 to 1.08, p=0.004). CONCLUSIONS The association between IUC use and delirium is stronger for octogenarian patients treated with TAVI than for patients who received SAVR. Our results revealed a previously unknown association between the number of hours an IUC is used and postoperative delirium in octogenarian patients treated with TAVI.
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Affiliation(s)
- Leslie Sp Eide
- Department of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Anette H Ranhoff
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Kavli Research Center for Geriatrics and Dementia, Haraldsplass Hospital, Bergen, Norway
| | - Sandra Lauck
- Centre for Heart Valve Innovation, St. Paul's Hospital, Vancouver, Canada
- University of British Columbia, Vancouver, Canada
| | - Bengt Fridlund
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Rune Haaverstad
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | | | - Karel K J Kuiper
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | - Jan Erik Nordrehaug
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Cardiology, Stavanger University Hospital, Stavanger, Norway
| | - Tone Merete Norekvål
- Department of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
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Eide LSP, Ranhoff AH, Fridlund B, Haaverstad R, Hufthammer KO, Kuiper KKJ, Nordrehaug JE, Norekvål TM. Readmissions and mortality in delirious versus non-delirious octogenarian patients after aortic valve therapy: a prospective cohort study. BMJ Open 2016; 6:e012683. [PMID: 27707832 PMCID: PMC5073576 DOI: 10.1136/bmjopen-2016-012683] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVES To determine whether postoperative delirium predicts first-time readmissions and mortality in octogenarian patients within 180 days after aortic valve therapy with surgical aortic valve replacement (SAVR) or transcatheter aortic valve implantation (TAVI), and to determine the most common diagnoses at readmission. DESIGN Prospective cohort study of patients undergoing elective SAVR or TAVI. SETTING Tertiary university hospital that performs all SAVRs and TAVIs in Western Norway. PARTICIPANTS Patients 80+ years scheduled for SAVR or TAVI and willing to participate in the study were eligible. Those unable to speak Norwegian were excluded. Overall, 143 patients were included, and data from 136 are presented. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome was a composite variable of time from discharge to first all-cause readmission or death. Secondary outcomes were all-cause first readmission alone and mortality within 180 days after discharge, and the primary diagnosis at discharge from first-time readmission. Delirium was assessed with the confusion assessment method. First-time readmissions, diagnoses and mortality were identified in hospital information registries. RESULTS Delirium was identified in 56% of patients. The effect of delirium on readmissions and mortality was greatest during the first 2 months after discharge (adjusted HR 2.9 (95% CI 1.5 to 5.7)). Of 30 first-time readmissions occurring within 30 days, 24 (80%) were patients who experienced delirium. 1 patient (non-delirium group) died within 30 days after therapy. Delirious patients comprised 35 (64%) of 55 first-time readmissions occurring within 180 days. Circulatory system diseases and injuries were common causes of first-time readmissions within 180 days in delirious patients. 8 patients died 180 days after the procedure; 6 (75%) of them experienced delirium. CONCLUSIONS Delirium in octogenarians after aortic valve therapy might be a serious risk factor for postoperative morbidity and mortality. Cardiovascular disorders and injuries were associated with first-time readmissions in these patients.
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Affiliation(s)
- Leslie S P Eide
- Faculty of Health and Social Sciences, Bergen University College, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Anette H Ranhoff
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Bengt Fridlund
- School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - Rune Haaverstad
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | | | - Karel K J Kuiper
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
| | | | - Tone M Norekvål
- Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
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Eide LSP, Ranhoff AH, Fridlund B, Haaverstad R, Hufthammer KO, Kuiper KKJ, Nordrehaug JE, Norekvål TM. Delirium as a Predictor of Physical and Cognitive Function in Individuals Aged 80 and Older After Transcatheter Aortic Valve Implantation or Surgical Aortic Valve Replacement. J Am Geriatr Soc 2016; 64:1178-86. [DOI: 10.1111/jgs.14165] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Anette H. Ranhoff
- Department of Clinical Science; University of Bergen; Bergen Norway
- Kavli Research Center for Geriatrics and Dementia; Haraldsplass Hospital; Bergen Norway
| | - Bengt Fridlund
- School of Health and Welfare; Jönköping University; Jönköping Sweden
- Department of Heart Disease; Haukeland University Hospital; Bergen Norway
| | - Rune Haaverstad
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Heart Disease; Haukeland University Hospital; Bergen Norway
| | | | - Karel K. J. Kuiper
- Department of Heart Disease; Haukeland University Hospital; Bergen Norway
| | - Jan E. Nordrehaug
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Cardiology; Stavanger University Hospital; Stavanger Norway
| | - Tone M. Norekvål
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Heart Disease; Haukeland University Hospital; Bergen Norway
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Kuiper KKJ, Salem M, Gudbrandsen OA, Muna ZA, Berge RK, Nordrehaug JE. Dose-dependent coronary artery intimal thickening after local delivery of the anti-oxidant tetradecylthioacetic acid from stents. Atherosclerosis 2007; 195:e39-47. [PMID: 17399716 DOI: 10.1016/j.atherosclerosis.2007.02.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2006] [Revised: 02/07/2007] [Accepted: 02/19/2007] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To examine the in vitro uptake and elution of the anti-oxidant tetradecylthioacetic acid (TTA) from phosphorylcholine (PC)-coated stents, and the in vivo uptake, retention, inflammatory response and histomorphometric changes after overstretch injury of the porcine coronary artery. METHODS PC-coated stents were loaded in one of three different concentrations of TTA (87, 174 and 347 mmol/L, i.e. 25, 50 and 100 mg/mL) and randomized versus PC-coated stents to the right coronary or left circumflex artery (18 pigs). Uptake of TTA into the coronary wall from the 347 mmol/L concentration was measured after 3 h and 24 h, 7 days, 14 days and 28 days (two pigs at each time point). RESULTS In vitro, TTA was successfully loaded onto the stents and elution was nearly complete after 48 h. In vivo, TTA could be demonstrated in the vessel wall for up to 4 weeks. Percent area stenosis was significantly higher in the TTA group, 35.2+/-20.9% versus 27.5+/-17.0% (p=0.03). Dose-related comparison showed increased intimal thickness, 0.66+/-0.53 mm versus 0.29+/-0.26 mm (p=0.008) and intimal area, 2.83+/-1.61 mm2 versus 1.58+/-0.91 mm2 (p=0.004) for the 347 mmol/L TTA versus controls. There was a significantly positive relationship between the TTA-loading dose and both intimal area (B=0.69, p=0.01) and maximal intimal thickness (B=0.17, p=0.02). The pro-inflammatory precursor arachidonic acid increased four-fold in the arterial wall of the TTA group, while the anti-inflammatory fatty acid index, calculated as (docosapentaenoic acid+docosahexaenoic acid+dihomo-linolenic acid)/arachidonic acid, was suppressed to 0.65+/-0.27 compared to 1.13+/-0.23 in control vessels (p<0.001). CONCLUSION TTA caused a dose-dependent intimal thickening and reduced anti-inflammatory fatty acid index. Contrary to expectations, TTA seems unsuitable as stent coating.
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Affiliation(s)
- Karel K J Kuiper
- Department of Heart Disease, Haukeland University Hospital, N-5021 Bergen, Norway.
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Kuiper KKJ, Salem M, Rotevatn S, Mills J, Nordrehaug JE. Implementing a best-treatment strategy with intracoronary brachytherapy for in-stent restenosis in patients at high risk for recurrence. Cardiovascular Revascularization Medicine 2007; 8:9-14. [PMID: 17293263 DOI: 10.1016/j.carrev.2006.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2006] [Revised: 10/03/2006] [Accepted: 10/03/2006] [Indexed: 11/18/2022]
Abstract
BACKGROUND The deployment of drug-eluting stents (DES) to treat bare-metal stent restenosis [in-stent restenosis (ISR)] has become routine practice, with a consequential decline in the use of intracoronary brachytherapy (ICBT). However, there are concerns as to the long-term safety profile of DES, particularly in terms of late stent thrombosis. In addition, an appropriate treatment strategy for stenosis within DES has not been developed. The aim of this study was to examine the efficacy of best treatment with ICBT for ISR in patients at high risk for future recurrence. METHODS Forty-seven consecutive patients with symptomatic ISR with at least one or more increased risk criteria for recurrence were treated with beta-radiation. The patients received best treatment based on avoidance of previously reported procedural risk factors for recurrence (incomplete stent apposition, dissection, geographical miss, and damage to the noninjured vessel segment), deferring ICBT when provisional stenting was performed. A beta-radiation dose of 20 Gy was used, and clopidogrel was prescribed for at least 6 months. RESULTS Treatment was successful for all patients without in-hospital complications. ICBT increased the total intervention procedure time by 15+/-10 min. ISR length was 25.4+/-11.5 mm. The angiographic minimal luminal diameter (MLD) was 2.24+/-0.43 mm after ICBT versus 0.75+/-0.58 mm at baseline (P<.05). On 9-month follow-up, the MLD was 1.93+/-0.48 mm (P<.05 vs. baseline). Binary restenosis was detected in six (13%) patients. At 29.7+/-9.3 months of follow-up, target lesion revascularization or target vessel (nonlesion) revascularization was performed in 17 (36%) patients. Only one patient suffered a myocardial infarction, and no deaths were observed. CONCLUSION The adoption of a best-practice protocol for the use of ICBT to treat ISR can result in a safe and effective clinical and angiographic outcome. Under these circumstances and with appropriate patient selection, ICBT may continue to be of value despite the popular use of DES.
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Affiliation(s)
- Karel K J Kuiper
- Department of Heart Disease, Haukeland University Hospital, N-5021 Bergen, Norway.
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Vikenes K, Westby J, Matre K, Kuiper KKJ, Farstad M, Nordrehaug JE. Release of cardiac troponin I after temporally graded acute coronary ischaemia with electrocardiographic ST depression. Int J Cardiol 2002; 85:243-51; discussion 252-3. [PMID: 12208590 DOI: 10.1016/s0167-5273(02)00162-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Elevation of cardiac biochemical markers and ST segment depression in the electrocardiogram have important roles in the risk stratification of unstable coronary syndromes. We assessed graded duration of acute coronary ischaemia with ST depression versus release of cardiac troponin I (cTnI) and conventional cardiac markers in 15 ischaemic pigs and 11 controls. METHODS Coronary ischaemia was induced via percutaneous technique by semiinflating an angioplasty balloon in the left circumflex artery. Blood velocity monitored by Doppler was reduced until ST depression > or =0.1 mV was obtained. Among 26 pigs, six controls had jugular vein sheath introduced only, five controls jugular vein and bilateral femoral sheaths, and 15 pigs were divided into three equal groups (n=5) in which ischaemia was maintained for 10, 20 and 30 min, respectively. RESULTS Mean blood flow velocity (cm/s) at baseline was 16.3+/-6.5 and was reduced to 4.1+/-3.2 (25% of normal, range 20-29%) during ischaemia. cTnI (microg/l) did not increase in controls but increased from 0.05 to 0.52 (P<0.05) and 0.76 (P<0.05) with 10 and 20 min of ischaemia, and to 30.77 (P<0.05) with 30 min of ischaemia. A rise of myoglobin and conventional cardiac enzymes did not distinguish controls with arterial cut-down from the ischaemia groups. CONCLUSION Release of cTnI depends on the duration of ST depression ischaemia. The critical time for a major release seems to be between 20 and 30 min. Thus, very early intervention in patients with prolonged ST depression ischemia should be focused on in future clinical trials.
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Affiliation(s)
- Kjell Vikenes
- Department of Heart Disease, Haukeland University Hospital, N-5021 Bergen, Norway
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