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Dive into the research topics where Markku Korpela is active.

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Featured researches published by Markku Korpela.


The Lancet | 1999

Comparison of combination therapy with single-drug therapy in early rheumatoid arthritis: a randomised trial

Timo Möttönen; Pekka Hannonen; Marjatta Leirisalo-Repo; Martti Nissilä; Hannu Kautiainen; Markku Korpela; Leena Laasonen; Heikki Julkunen; Reijo Luukkainen; Kaisa Vuori; Leena Paimela; Harri Blåfield; Markku Hakala; Kirsti Ilva; U Yli-Kerttula; Kari Puolakka; Pentti Järvinen; Mikko Hakola; Heikki Piirainen; Jari Ahonen; Ilppo Pälvimäki; Sinikka Forsberg; Kalevi Koota; Claes Friman

BACKGROUND The treatment of rheumatoid arthritis should aim at clinical remission. This multicentre, randomised trial with 2-year follow-up sought evidence on the efficacy and tolerability of combination therapy (sulphasalazine, methotrexate, hydroxychloroquine, and prednisolone) compared with treatment with a single disease-modifying antirheumatic drug, with or without prednisolone, in the treatment of early rheumatoid arthritis. METHODS 199 patients were randomly assigned to two treatment groups. 195 started the treatment (97 received combination and 98 single drug therapy). Single-drug therapy in all patients started with sulphasalazine; in 51 patients methotrexate was later substituted. Oral prednisolone was required by 63 patients. The primary outcome measure was induction of remission. Analyses were intention to treat. FINDINGS 87 patients in the combination group and 91 in the single-therapy group completed the trial. After a year, remission was achieved in 24 of 97 patients with combination therapy, and 11 of 98 with single-drug therapy (p=0.011). The remission frequencies at 2 years were 36 of 97 and 18 of 98 (p=0.003). Clinical improvement (American College of Rheumatology criteria of 50% clinical response) was achieved after 1 year in 68 (75%) patients with combination therapy, and in 56 (60%) using single-drug therapy (p=0.028), while at the 2-year visit 69 and 57 respectively (71% vs 58%, p=0.058) had clinically improved. The frequencies of adverse events were similar in both treatment groups. INTERPRETATION Combination therapy was better and not more hazardous than single treatment in induction of remission in early rheumatoid arthritis. The combination strategy as an initial therapy seems to increase the efficacy of the treatment in at least a proportion of patients with early rheumatoid arthritis.


Arthritis & Rheumatism | 2001

Validity of the new American College of Rheumatology criteria for neuropsychiatric lupus syndromes: a population-based evaluation

Hanna Ainiala; A. K. I. Hietaharju; Jukka Loukkola; Jukka Peltola; Markku Korpela; Riina Metsänoja; Anssi Auvinen

OBJECTIVE To assess the validity of the recently developed American College of Rheumatology (ACR) nomenclature for neuropsychiatric systemic lupus erythematosus (NPSLE). METHODS We conducted a cross-sectional, population-based study covering an area with 440,000 people. A total of 46 patients aged 16 to 65 years fulfilled the criteria for a definite diagnosis of SLE. One control for each patient matched by age, sex, education, and place of residence was randomly identified from the population register. All patients and controls underwent a clinical neurologic examination and neuropsychological testing. The data were analyzed using conditional logistic regression methods. RESULTS Forty-two patients (91%) and 25 controls (56%) fulfilled at least one of the ACR NPSLE criteria, which gave an odds ratio (OR) of 9.5 (95% confidence interval [CI] 2.2-40.8) but low specificity (0.46). Cognitive dysfunction was the most common syndrome detected in 37 patients (80%). A revised set of 16 criteria excluding the syndromes without evidence for neuronal damage resulted in improved specificity (OR 7.0, 95% CI 2.1-23.5, specificity 0.93). CONCLUSION The proposed 19 ACR criteria did not differentiate SLE patients from controls, nor NPSLE patients from other SLE patients. The revised NPSLE criteria proposed by us performed well in our population but should be evaluated in a larger patient population.


The American Journal of Gastroenterology | 1999

Celiac disease and markers of celiac disease latency in patients with primary Sjögren's syndrome.

Sari Iltanen; Pekka Collin; Markku Korpela; Kati Holm; Jukka Partanen; Anne Polvi; Markku Mäki

OBJECTIVE:Many autoimmune diseases occur concomitantly with celiac disease. We investigated prospectively the occurrence of celiac disease and small-bowel mucosal inflammation in patients with primary Sjögrens syndrome.METHODS:A total of 34 patients with primary Sjögrens syndrome and 28 controls underwent small bowel biopsy. Villous morphology, jejunal intraepithelial lymphocytes, and mucosal HLA-DR were evaluated and DQA and DQB alleles, serum antiendomysial, and antigliadin antibodies were examined.RESULTS:Five (14.7%) of 34 Sjögrens syndrome patients were found to have celiac disease. The density of jejunal intraepithelial γδ+ T cells was increased in all celiac and in four nonceliac patients. All celiac patients, 69% of nonceliac Sjögrens syndrome patients, and 11% of control subjects showed enhanced HLA-DR expression (p < 0.001). HLA DQ2 was present in 19 (56%) patients with Sjögrens syndrome, including all five with celiac disease.CONCLUSIONS:The findings show a close association between Sjögrens syndrome and celiac disease. Even among nonceliac patients with primary Sjögrens syndrome, an ongoing inflammation is often present in the small bowel mucosa.


Scandinavian Journal of Rheumatology | 2004

Death rates and causes of death in patients with rheumatoid arthritis: a population-based study.

S Sihvonen; Markku Korpela; Pekka Laippala; Jukka Mustonen; Amos Pasternack

Objective: To assess the mortality and causes of death in a cross‐sectional population‐based study of 1042 patients with rheumatoid arthritis (RA). Methods: In 1988, 604 RA patients [470 females (F), 134 males (M)] and 457 age‐ and sex‐matched controls (352 F, 105 M) were examined prospectively (participants) and 438 (183 F, 81 M) non‐participant RA patients retrospectively. In 1999, vital status and causes of death were determined. Mortality in the total RA population was compared to that in the general population, and that among participant RA patients to their matched controls. Results: A total of 384 (37%) RA patients and 71 (16%) controls died. RA patients had increased mortality compared to the general population (standardized mortality ratios SMR 2.64) or controls (1.71). This was observed in both sexes. Over 40% of deaths in all groups were due to cardiovascular diseases. RA patients were at increased risk of dying of urogenital, gastrointestinal, respiratory and cardiovascular diseases, infections, and cancers when compared to the general population or controls. Conclusions: Our results show that a cross‐sectional cohort of RA patients had an increased risk of death from various causes.


Scandinavian Journal of Rheumatology | 2005

Cerebral MRI abnormalities and their association with neuropsychiatric manifestations in SLE: a population‐based study

Hanna Ainiala; Prasun Dastidar; Jukka Loukkola; Terho Lehtimäki; Markku Korpela; Jukka Peltola; Aki Hietaharju

Objective: To evaluate the volumetric brain magnetic resonance imaging (MRI) findings in a population‐based sample of systemic lupus erythematosus (SLE) patients and to detect a possible relationship between cerebral MRI abnormalities and specific neuropsychiatric (NP) manifestations. Methods: The study population consisted of patients with SLE (n = 43) in Pirkanmaa Health Care District, Finland and of a sex‐ and age‐stratified reference group from the general population (n = 43). In addition to a clinical neurological investigation, all subjects received a detailed neuropsychological assessment and an MRI study. Volumetric measures of cerebral atrophy as well as T1‐ and T2‐weighted lesions were obtained. SLE activity was assessed by the European Consensus Lupus Activity Measure (ECLAM) index, and accumulated NP abnormalities were measured by the Systemic Lupus International Collaborating Clinics (SLICC) damage index. A cumulative lifetime dose of glucocorticoids was determined from the patientrecords. Results: Compared with controls, SLE patients had increased volumes of both T1‐ and T2‐weighted lesions (p = 0.019 and p<0.0001, respectively) and increased cerebral atrophy (p<0.001). All the measured MRI parameters were statistically significantly higher in NPSLE than in non‐NPSLE patients. In SLE patients, cerebral atrophy was associated with cognitive dysfunction, epileptic seizures, and cerebrovascular disease; T1‐weighted lesions were associated with epileptic seizures and T2‐weighted lesions with cognitive dysfunction. All MRI parameters correlated significantly with the SLICC index but not with the ECLAM index. A positive correlation was found between a cumulative dose of glucocorticoids and cerebral atrophy in SLE patients. Conclusion: MRI abnormalities, including brain atrophy and T1‐ and T2‐weighted lesions, are significantly more common in patients with SLE than in the general population and they are related to specific NP manifestations. Our findings also provide support for the organic aetiology of cognitive dysfunction in SLE.


Arthritis Research & Therapy | 2010

Early combination disease-modifying antirheumatic drug therapy and tight disease control improve long-term radiologic outcome in patients with early rheumatoid arthritis: the 11-year results of the Finnish Rheumatoid Arthritis Combination Therapy trial.

V. Rantalaiho; Markku Korpela; Leena Laasonen; Hannu Kautiainen; Salme Järvenpää; Pekka Hannonen; Marjatta Leirisalo-Repo; Harri Blåfield; Kari Puolakka; Anna Karjalainen; Timo Möttönen

IntroductionEarly treatment of rheumatoid arthritis (RA) has been shown to retard the development of joint damage for a period of up to 5 years. The aim of this study was to evaluate the radiologic progression beyond that time in patients with early RA initially treated with a combination of three disease-modifying antirheumatic drugs (DMARDs) or a single DMARD.MethodsA cohort of 199 patients with early active RA were initially randomized to receive treatment with a combination of methotrexate, sulfasalazine, and hydroxychloroquine with prednisolone (FIN-RACo), or treatment with a single DMARD (initially, sulfasalazine) with or without prednisolone (SINGLE). After 2 years, the drug-treatment strategy became unrestricted, but still targeted remission. The radiographs of hands and feet were analyzed by using the Larsen score at baseline, 2, 5, and 11 years, and the radiographs of large joints, at 11 years.ResultsSixty-five patients in the FIN-RACo and 65 in the SINGLE group had radiographs of hands and feet available at baseline and at 11 years. The mean change from baseline to 11 years in Larsen score was 17 (95% CI, 12 to 26) in the FIN-RACo group and 27 (95% CI, 22 to 33) in the SINGLE group (P = 0.037). In total, 87% (95% CI, 74 to 94) and 72% (95% CI, 58 to 84) of the patients in the FIN-RACo and the SINGLE treatment arms, respectively, had no erosive changes in large joints at 11 years.ConclusionsTargeting to remission with tight clinical controls results in low radiologic progression in most RA patients. Patients treated initially with a combination of DMARDs have less long-term radiologic damage than do those treated initially with DMARD monotherapy.Trial registrationCurrent Controlled Trials ISRCTN18445519.


Annals of the Rheumatic Diseases | 2000

Effect of a three month course of ciprofloxacin on the outcome of reactive arthritis

T Yli-Kerttula; Reijo Luukkainen; U Yli-Kerttula; Timo Möttönen; Mikko Hakola; Markku Korpela; M Sanila; J Parviainen; J Uksila; R Vainionpaa; Auli Toivanen

BACKGROUND Treatment of reactive arthritis (ReA) with antibiotics has so far remained controversial. Eradication of the causative microbe appears logical, but short term antibiotic treatment has no beneficial effect on the outcome of ReA. OBJECTIVE To evaluate the effect of a three month course of ciprofloxacin on ReA. METHODS In a randomised, double blind, placebo controlled trial, between December 1992 and February 1996, 71 patients with acute ReA triggered by a gastrointestinal or a urogenital infection were randomly assigned to receive ciprofloxacin 500 mg or placebo twice daily for three months. Patients were assessed at study entry, at 6 weeks, 3 months, 6 months, and 12 months. Sixty two patients were valid for the efficacy analysis. The primary outcome measures were erythrocyte sedimentation rate, number of swollen joints, patients self assessment, and complete recovery. RESULTS Adverse events were mostly mild and occurred in both treatment groups. There were no statistically significant differences in any of the primary or secondary efficacy variables between the study groups at baseline or during the 12 month follow up. All primary outcome measures indicated that the condition of the patients improved during the study. CONCLUSION Both groups tended to recover. Ciprofloxacin, given as a three month course, had no advantage over placebo treatment.


Annals of the Rheumatic Diseases | 2005

Monetary value of lost productivity over a five year follow up in early rheumatoid arthritis estimated on the basis of official register data on patients’ sickness absence and gross income: experience from the FIN-RACo trial

Kari Puolakka; Hannu Kautiainen; Markku Pekurinen; Timo Möttönen; Pekka Hannonen; Markku Korpela; Markku Hakala; Marja Arkela-Kautiainen; Reijo Luukkainen; Marjatta Leirisalo-Repo

Objective: To explore the monetary value of rheumatoid arthritis related loss of productivity in patients with early active disease. Methods: In a prospective cohort substudy of the FIN-RACo Trial, 162 patients with recent onset rheumatoid arthritis, aged 18 to 65 years and available to the workforce, were followed up for five years. Loss of work productivity in euros 2002 was estimated by data on absence for sickness and on income (human capital approach) from official databases. Treatment responses were evaluated by area under the curve (AUC) of the ACR-N measure and by increase in number of erosions in radiographs of hands and feet. The health assessment questionnaire (HAQ) at six months was linked to the International Classification of Functioning, Disability and Health (ICF). Results: In all, 120 (75%) patients, women more often (82%) than men (61%) (p = 0.002), lost work days. The mean lost productivity per patient-year was €7217 (95% confidence interval (CI), 5561 to 9148): for women, €6477 (4858 to 8536) and for men, €8443 (5389 to 12 898). There was an inverse correlation with improvement: €1101 (323 to 2156) and €14 952 (10 662 to 19 852) for the highest and lowest quartiles of AUC of ARC-N, respectively. Lost productivity was associated with increase in the number of erosions and with disability in “changing and maintaining body position” subcategory of the ICF. Conclusions: Despite remission targeted treatment with disease modifying antirheumatic drugs, early rheumatoid arthritis results in substantial loss of productivity. A good improvement in the disease reduces the loss markedly.


Arthritis & Rheumatism | 2009

The good initial response to therapy with a combination of traditional disease-modifying antirheumatic drugs is sustained over time: the eleven-year results of the Finnish rheumatoid arthritis combination therapy trial.

V. Rantalaiho; Markku Korpela; Pekka Hannonen; Hannu Kautiainen; Salme Järvenpää; Marjatta Leirisalo-Repo; Markku Hakala; Kari Puolakka; Heikki Julkunen; Riitta Luosujärvi; Timo Möttönen

OBJECTIVE To evaluate the evolution of functional and clinical outcomes over 11 years in patients with early rheumatoid arthritis (RA) initially treated with a combination of 3 disease-modifying antirheumatic drugs (DMARDs) or with a single DMARD. METHODS A cohort of 199 patients with early active RA were initially randomized to receive treatment with a combination of methotrexate, sulfasalazine, and hydroxychloroquine with prednisolone or treatment with a single DMARD (initially, sulfasalazine) with or without prednisolone. After 2 years, the drug treatment strategy became unrestricted, but still targeted remission. At 11 years, function was assessed with the Health Assessment Questionnaire (HAQ), and clinical outcomes were assessed with the modified Minimal Disease Activity (MDA) measure and the American College of Rheumatology (ACR) criteria for remission. RESULTS At 11 years, 138 patients were assessed (68 in the combination-DMARD group and 70 in the single-DMARD group). The mean+/-SD HAQ scores were 0.34+/-0.54 in the combination-DMARD group and 0.38+/-0.58 in the single-DMARD group (P=0.88). Modified MDA was achieved by 63% (95% confidence interval [95% CI] 51, 77) and by 43% (95% CI 32, 55) (P=0.016) of the combination-DMARD group and the single-DMARD group, respectively, and ACR remission by 37% (95% CI 26, 49) and by 19% (95% CI 11, 29) (P=0.017), respectively. CONCLUSION Initial therapy with a combination of DMARDs in early RA results in higher rates of patients achieving modified MDA and strict ACR remission even over the long term than initial single-DMARD therapy. Targeting remission with tight clinical controls results in good functional and clinical outcomes in most RA patients.


Annals of the Rheumatic Diseases | 2013

Infliximab for 6 months added on combination therapy in early rheumatoid arthritis: 2-year results from an investigator-initiated, randomised, double-blind, placebo-controlled study (the NEO-RACo Study)

Marjatta Leirisalo-Repo; Hannu Kautiainen; Leena Laasonen; Markku Korpela; Markku Kauppi; O. Kaipiainen-Seppänen; Riitta Luosujärvi; Reijo Luukkainen; Anna Karjalainen; Harri Blåfield; Toini Uutela; Kirsti Ilva; Heikki Julkunen; Leena Paimela; Kari Puolakka; Eeva Moilanen; Pekka Hannonen; T Möttönen

Objective Early treatment of patients with rheumatoid arthritis (RA) with combination treatment starting with methotrexate, sulfasalazine, hydroxychloroquine and prednisolone (FIN-RACo strategy) is superior to monotherapy. A study was undertaken to determine whether infliximab (INFL) added to intensified FIN-RACo treatment for the initial 6 months improves the 2-year outcome. Methods 99 patients with early untreated active RA were enrolled in an investigator-initiated, randomised, double-blind, multicentre, parallel-group trial. Primary outcomes were remission and radiological changes at 2 years. All patients started with FIN-RACo. In addition, they were randomised to receive INFL or placebo (Pla) from weeks 4 to 26. Results At 24 months, 66% and 53%, respectively, of the patients in the FIN-RACo+INFL and FIN-RACo+Pla groups were in remission according to the modified American College of Rheumatology (ACR) criteria (p=0.19), 26% and 10% were in sustained modified ACR remission (p=0.042) and 82% in both groups were in remission by 28-joint disease activity score (not significant). Mean changes in the total Sharp-van der Heijde score were 0.2 and 1.4, respectively (p=0.0058). Conclusions Most patients with early active RA achieve clinical remission and develop negligible joint damage with the intensified FIN-RACo regimen. Adding INFL for the first 6 months delays radiological progression.

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Pekka Hannonen

University of Eastern Finland

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Timo Möttönen

Turku University Hospital

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H. Kautiainen

Helsinki University Central Hospital

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