İrfan Yavaşoğlu

İrfan Yavaşoğlu


Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 September 2007 in Annals of Hematology
Verified
Journal Article
Closed access
PDF file
İYİrfan Yavaşoğlu
İrfan Yavaşoğlu
MTMurat Tombuloglu
Murat Tombuloglu
GKGurhan Kadikoylu
Gurhan Kadikoylu
ADAyhan Donmez
Ayhan Donmez
SCSeckin Cagırgan
Seckin Cagırgan
ZBZahit Bolaman
Zahit Bolaman

28 November 2023 in American Journal of Hematology
Verified
Journal Article
Open access
NCNichola Cooper
Nichola Cooper
WGWaleed Ghanima
Waleed Ghanima
NVNicola Vianelli
Nicola Vianelli
DVDavid Valcárcel
David Valcárcel
İYİrfan Yavaşoğlu
İrfan Yavaşoğlu
FZFrancesco Zaja
Francesco Zaja
Immune thrombocytopenia (ITP) is characterized by reduced platelet count due to increased destruction and is categorized according to the time following diagnosis (newly diagnosed, persistent, chronic). First‐line corticosteroid therapy is associated with transient response, high relapse rates, and considerable toxicity. TAPER (NCT03524612) is a Phase II, prospective, single‐arm trial investigating whether eltrombopag can induce a sustained response off‐treatment (SRoT) in adult patients with ITP after first‐line corticosteroid failure. This study defines SRoT as an off‐treatment period wherein platelet count remains above 30 × 109/L in the absence of bleeding or rescue therapy. The primary endpoint was the proportion of patients who achieved SRoT until Month 12, which was 30.5% (n = 32/105; p < .0001 testing hypothesis H1: proportion >15%) following eltrombopag tapering and discontinuation, and median SRoT duration was ~8 months until Month 12. Median platelet count increased within 1 month of treatment and remained elevated until Month 12. Quality of life improved within 3 months and was maintained. Headache (21%) was the most common adverse event. None of the 4 deaths reported were considered treatment‐related. In summary, ~one‐third of patients achieved SRoT until Month 12 following eltrombopag tapering and discontinuation. An ad‐hoc early‐use analysis, stratified by ITP duration at baseline, assessed initial hematologic responses and safety. Results suggest that eltrombopag has similar efficacy in newly diagnosed and later stages of ITP. In follow‐up until Month 24, a median SRoT duration of ~22 months was observed (n = 20). The safety profile was comparable across analyses and ITP duration groups and aligned with its well‐established safety profile.

15 November 2018 in Turkish Journal of Gastroenterology
Verified
Journal Article
Closed access
AKAltay Kandemir
Altay Kandemir
ACAdil Coskun
Adil Coskun
İYİrfan Yavaşoğlu
İrfan Yavaşoğlu
ABAli Zahit Bolaman
Ali Zahit Bolaman
MÜMustafa Ünübol
Mustafa Ünübol
GKGürhan Kadıköylü
Gürhan Kadıköylü
Background/Aims: Hypertriglyceridemia (HTG) is the third most common cause of acute pancreatitis. In patients with severe HTG (TG level>1000 mg/dL), it may be beneficial to immediately lower the levels of triglyceride (TG) and chylomicrons. In this study, we present one of the largest case series on the use of therapeutic plasma exchange (TPE) for hypertriglyceridemia-induced acute pancreatitis (HTG-AP). Materials and Methods: Overall, 33 patients who were admitted to our clinic for HTG-AP and underwent TPE between January 2007 and July 2017 were included in the study. Clinical data and outcomes and the reduction of triglyceride levels were examined retrospectively. Results: The TG level decreased by 54.4%, and the total cholesterol level decreased by 52.1% after one TPE session. The TG decrease after the second TPE session was found to be 79.4%. There were 20 (60.6%) patients with mild acute pancreatitis, 10 (30.3%) patients with moderetaly severe acute pancreatitis, and 3 (9.1%) patients with severe acute pancreatitis based on the categorization according to the revised Atlanta criteria. Regarding local complications, the acute peripancreatic fluid collection was observed in 13 (39.4%) patients, acute necrotic collection was observed in 1 (3%) patient, walled-off necrosis was observed in 1 (3%) patient, and pancreatic pseudocyst was not observed in any patient. Mortality was not determined in patients with mild and moderately severe acute pancreatitis, and its rate was 33.3% in patients with severe acute pancreatitis. The overall mortality rate was 3%. No significant complications related to TPE were noted. Conclusion: TPE is a safe and helpful therapeutic treatment method for patients with HTG-AP and may be considered particularly in patients with severe acute pancreatitis. Cite this article as: Kandemir A, Coşkun A, Yavaşoğlu İ, et al. Therapeutic plasma exchange for hypertriglyceridemia induced acut pancreatitis: the 33 cases experience from a tertiary reference center in Turkey. Turk J Gastroenterol 2018; 29: 676-83.

10 November 2014 in Transfusion Medicine
Verified
Journal Article
Closed access
PDF file
GKG. Kadikoylu
G. Kadikoylu
İYİrfan Yavaşoğlu
İrfan Yavaşoğlu
ZBZ. Bolaman
Z. Bolaman

1 September 2009 in The American Journal of the Medical Sciences
Verified
Journal Article
Closed access
PDF file
İYİrfan Yavaşoğlu
İrfan Yavaşoğlu
EAErol Arslan
Erol Arslan
MKMert Kucuk
Mert Kucuk
BCBurak Cildag
Burak Cildag
MGMehmet Gok
Mehmet Gok
SKSamet Kafkas
Samet Kafkas

28 June 2008 in European Journal of Haematology
Verified
Journal Article
Closed access
PDF file
İYİrfan Yavaşoğlu
İrfan Yavaşoğlu
GKGurhan Kadikoylu
Gurhan Kadikoylu
HUHilal Uysal
Hilal Uysal
SESema Ertug
Sema Ertug
ZBZahit Bolaman
Zahit Bolaman