Jussi Haijanen - UTU Research Portal

Jussi Haijanen

Surgery (Department of Clinical Medicine)

jmhaij@utu.fi

Antibiotic treatment versus appendicectomy for acute appendicitis in adults: an individual patient data meta-analysis (2025)
- Lancet Gastroenterology and Hepatology
Scheijmans, Jochem C G; Haijanen, Jussi; Flum, David R; Bom, Wouter J; Davidson, Giana H; Vons, Corinne; Hill, Arnold D; Ansaloni, Luca; Talan, David A; van Dijk, Stefan T; Monsell, Sarah E; Hurme, Saija; Sippola, Suvi; Barry, Caroline; O'Grady, Sorcha; Ceresoli, Marco; Gorter, Ramon R; Hannink, Gerjon; Dijkgraaf, Marcel G; Salminen, Paulina; Boermeester, Marja A
Three-year follow-up of antibiotics versus placebo in adults with CT-confirmed uncomplicated acute appendicitis: a secondary analysis of the APPAC III randomized clinical trial (2025)
- British Journal of Surgery
Sula, Sami; Sippola, Suvi; Haijanen, Jussi; Hurme, Saija; Nordström, Pia; Rautio, Tero; Sallinen, Ville; Salminen, Paulina
A randomized double-blind noninferiority clinical multicenter trial on oral moxifloxacin versus placebo in the outpatient treatment of uncomplicated acute appendicitis: APPAC IV study protocol (2024)
- Scandinavian Journal of Surgery
Lund, Heidi; Haijanen, Jussi; Suominen, Saku; Hurme, Saija; Sippola, Suvi; Rantanen, Tuomo; Rautio, Tero; Mattila, Anne; Pinta, Tarja; Nordström, Pia; Kössi, Jyrki; Ilves, Imre; Salminen, Paulina
Impact of an appendicolith and its characteristics on the severity of acute appendicitis (2024)
- BJS Open
Sula, Sami; Paananen, Timo; Tammilehto, Ville; Hurme, Saija; Mattila, Anne; Rantanen, Tuomo; Rautio, Tero; Pinta, Tarja; Sippola, Suvi; Haijanen, Jussi M.; Salminen, Paulina
Improved Tool to Assess Complicated Appendicitis Probability (2024)
- JAMA Surgery
Haijanen Jussi, Salminen Paulina
Three-Year Outcomes of Oral Antibiotics vs Intravenous and Oral Antibiotics for Uncomplicated Acute Appendicitis : A Secondary Analysis of the APPAC II Randomized Clinical Trial (2024)
- JAMA Surgery
Selänne Liisa, Haijanen Jussi, Sippola Suvi, Hurme Saija, Rautio Tero, Nordström Pia, Rantanen Tuomo, Pinta Tarja, Ilves Imre, Mattila Anne, Rintala Jukka, Marttila Harri, Meriläinen Sanna, Laukkarinen Johanna, Sävelä Eeva-Liisa, Paajanen Hannu, Grönroos Juha, Salminen Paulina
Antibiotics versus placebo in adults with CT-confirmed uncomplicated acute appendicitis (APPAC III): randomized double-blind superiority trial (2022)
- British Journal of Surgery
Salminen Paulina, Sippola Suvi, Haijanen Jussi, Nordström Pia, Rantanen Tuomo, Rautio Tero, Sallinen Ville, Löyttyniemi Eliisa, Hurme Saija, Tammilehto Ville, Laukkarinen Johanna, Savolainen Heini, Meriläinen Sanna, Leppäniemi Ari, Grönroos Juha
Appendiceal microbiome in uncomplicated and complicated acute appendicitis: A prospective cohort study (2022)
- PLoS ONE
Vanhatalo Sanja, Munukka Eveliina, Kallonen Teemu, Sippola Suvi, Grönroos Juha, Haijanen Jussi, Hakanen Antti J, Salminen Paulina
Blood culture positivity in patients with acute appendicitis: A propensity score-matched prospective cohort study (2022)
- Scandinavian Journal of Surgery
Sula Sami, Han Tatu T, Marttila Harri, Haijanen Jussi, Löyttyniemi Eliisa, Sippola Suvi, Grönroos Juha, Hakanen Antti J, Salminen Paulina
Uncomplicated acute appendicitis – towards optimization of diagnostics, antibiotic management, and treatment costs (2022) Haijanen Jussi
Diagnostic accuracy using low-dose versus standard radiation dose CT in suspected acute appendicitis: prospective cohort study (2021)
- British Journal of Surgery
Haijanen Jussi, Sippola Suvi, Tammilehto Ville, Grönroos Juha, Mäntyoja Siiri, Löyttyniemi Eliisa, Niiniviita Hannele, Salminen Paulina
Effect of Oral Moxifloxacin vs Intravenous Ertapenem Plus Oral Levofloxacin for Treatment of Uncomplicated Acute Appendicitis The APPAC II Randomized Clinical Trial (2021)
- JAMA: Journal of the American Medical Association
Sippola Suvi, Haijanen Jussi, Grönroos Juha, Rautio Tero, Nordström Pia, Rantanen Tuomo, Pinta Tarja, Ilves Imre, Mattila Anne, Rintala Jukka, Löyttyniemi Eliisa, Hurme Saija, Tammilehto Ville, Marttila Harri, Meriläinen Sanna, Laukkarinen Johanna, Sävelä Eeva-Liisa, Savolainen Heini, Sippola Tomi, Aarnio Markku, Paajanen Hannu, Salminen Paulina
Factors Associated With Primary Nonresponsiveness to Antibiotics in Adults With Uncomplicated Acute Appendicitis: A Prespecified Secondary Analysis of a Randomized Clinical Trial (2021)
- JAMA Surgery
Haijanen Jussi, Sippola Suvi, Löyttyniemi Eliisa, Hurme Saija, Grönroos Juha, Rautio Tero, Salminen Paulina
Optimizing the Gold Standard - Low-Dose Computed Tomography Modalities as a Part of Clinical Practice in Acute Appendicitis Imaging (2021)
- JAMA Surgery
Haijanen Jussi, Sula Sami, Salminen Paulina
Elämänlaatu ja potilastyytyväisyys komplisoitumattoman umpilisäketulehduksen leikkaus- tai mikrobilääkehoidon jälkeen (2020)
- Duodecim
Sippola S, Haijanen J, Viinikainen L, Grönroos J, Paajanen H, Rautio T, Nordström P, Aarnio M, Rantanen T, Hurme S, Mecklin J-P, Sand J, Jartti A, Salminen P
Quality of Life and Patient Satisfaction After Antibiotic Therapy vs Appendectomy for Uncomplicated Appendicitis—Reply (2020)
- JAMA Surgery
Sippola S, Haijanen J, Salminen P
Quality of Life and Patient Satisfaction at 7-Year Follow-up of Antibiotic Therapy vs Appendectomy for Uncomplicated Acute Appendicitis: A Secondary Analysis of a Randomized Clinical Trial (2020)
- JAMA Surgery
Sippola S, Haijanen J, Viinikainen L, Grönroos J, Paajanen H, Rautio T, Nordström P, Aarnio M, Rantanen T, Hurme S, Mecklin JP, Sand J, Jartti A, Salminen P
Cost analysis of antibiotic therapy versus appendectomy for treatment of uncomplicated acute appendicitis: 5-year results of the APPAC randomized clinical trial (2019)
- PLoS ONE
Jussi Haijanen, Suvi Sippola, Risto Tuominen, Juha Grönroos, Hannu Paajanen, Tero Rautio, Pia Nordström, Markku Aarnio, Tuomo Rantanen, Saija Hurme, Paulina Salminen
Optimising the antibiotic treatment of uncomplicated acute appendicitis: a protocol for a multicentre randomised clinical trial (APPAC II trial) (2018)
- BMC Surgery
Haijanen J, Sippola S, Grönroos J, Rautio T, Nordström P, Rantanen T, Aarnio M, Ilves I, Hurme S, Marttila H, Virtanen J, Mattila A, Paajanen H, Salminen P; and on behalf of the APPAC study group