| New year and our 20th Anniversary, Thomas F. Lüscher, pulmonary hypertension | Çetin EROL | 1–1 |
| Classification of heart failure: A farewell to ejection fraction? | Thomas F. LÜSCHER | 2–6 |
| Effects of aerospace environments on the cardiovascular system | Erdinç Ercan | 3–6 |
| A meta-analysis of randomized controlled trials investigating tirofiban combined with conventional drugs by intracoronary administration for no-reflow prevention | Qian ZENG,Long Dan ZHANG,Wei WANG | 7–16 |
| Systemic arterial hypertension and flight | Kaan Okyay | 7–9 |
| Is heart failure an obstacle to air travel? | Güliz Erdem | 10–12 |
| The secret enemy during a flight: Economy class syndrome | Cengiz Şabanoğlu | 13–17 |
| Sex difference in clinical outcomes of Chinese patients with atrial fibrillation and coronary stenting according to age | Jian-Yong ZHENG,Dong-Tao Lİ,Yu CHEN,Yi-Da TANG,Yun-Dai CHEN,Zhi-Min MA,Tian-Chang Lİ | 17–23 |
| Congenital heart disease and air travel | Gülten Taçoy | 18–19 |
| Flight and diabetes | Mehmet Uğurlu | 20–23 |
| Chronic thromboembolic pulmonary hypertension in patients with persistent chest symptoms after acute pulmonary embolism | Elif ŞAHUTOĞLU,Esin TUNCAY,Gülfidan ARAS,Esin YENTÜRK,Zehra Dilek KANMAZ,Zeki ÖNGEN | 24–29 |
| Flight safety in patients with arrhythmia | Fahrettin Katkat | 24–25 |
| Is air travel safe for patients with cardiac implantable electronic devices? | Aycan Fahri Erkan | 26–28 |
| Can a patient with pulmonary hypertension travel safely by plane? | Berkay Ekici | 29–30 |
| How did the updated hemodynamic definitions affect the frequency of pulmonary hypertension in patients with systemic sclerosis? | Alper SARI,Yusuf Ziya ŞENER,Berkan ARMAĞAN,LEVENT KILIÇ,Ergün Barış KAYA,Vedat HEKİMSOY,Ömer KARADAĞ,Şule Apraş BİLGEN,Sedat KIRAZ,Ali İhsan ERTENLİ,Lale TOKGÖZOĞLU,Ali AKDOGAN | 30–35 |
| Air transport of patients with critical cardiac conditions requiring intensive care | Özgür Kırbaş | 31–33 |
| Coronavirus disease 2019 and flight safety | Sevgi Özcan | 34–35 |
| Pulmonary hypertension in patients with sarcoidosis: A single-center experience | Deniz Kaptan ÖZEN,Bulent MUTLU,Derya KOCAKAYA,Burak TURAN,Sena Sert ŞEKERCİ,Berrin Bağcı CEYHAN | 36–41 |
| Evaluation of radial artery endothelial functions in transradial coronary angiography according to different radial access sites | Elton SOYDAN,Mehmet Kış,Mustafa AKIN | 42–48 |
| An intriguing case of acute coronary syndrome caused by rotten tuna | Silvana De MARTİNO,Chiara GARGİULO,Alberto SOMASCHİNİ,Stefano CORNARA,Gabriele CRİMİ | 49–50 |
| Failed transcatheter mitral valve-in-ring implantation followed by transapical valve-in-valve within the ring and ad hoc paravalvular leak closure | BEYTULLAH ÇAKAL,Sinem ÇAKAL,H Murat GÜNEŞ,Mehmet Onur OMAYGENÇ,Aydın YILDIRIM | 50–53 |
| A rare cause of mitral regurgitation after aortic valve replacement: Iatrogenic mitral valve perforation | Begüm UYGUR,Ömer ÇELİK,Ahmet Anıl ŞAHİN,Ali Rıza DEMİR,Mehmet ERTÜRK | 53–54 |
| Percutaneous left atrial cardiac biopsy under multidectector computed tomography guidance | Umberto G. ROSSI,Anna Maria IERARDI,Maurizio CARIATI | 56–57 |
| Shock wave therapy in cardiology: A comment | Sergei V. JARGIN | 57–58 |
| A 32-year-old woman with worsening dyspnea | Yavuzer KOZA,Ferhat KANBAY,Muhammed Hakan TAŞ,Fatih ALPER | 59–59 |