Waseem Hajjar

1.1k total citations · 1 hit paper
51 papers, 716 citations indexed

About

Waseem Hajjar is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Neurology. According to data from OpenAlex, Waseem Hajjar has authored 51 papers receiving a total of 716 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Surgery, 23 papers in Pulmonary and Respiratory Medicine and 9 papers in Neurology. Recurrent topics in Waseem Hajjar's work include Tracheal and airway disorders (11 papers), Myasthenia Gravis and Thymoma (9 papers) and Medical Imaging and Pathology Studies (7 papers). Waseem Hajjar is often cited by papers focused on Tracheal and airway disorders (11 papers), Myasthenia Gravis and Thymoma (9 papers) and Medical Imaging and Pathology Studies (7 papers). Waseem Hajjar collaborates with scholars based in Saudi Arabia, United States and Pakistan. Waseem Hajjar's co-authors include Sultan Ayoub Meo, Adnan Mahmood Usmani, M. Iqbal Choudhary, N Ahmed, Abdulrahman Mohammed Alhowikan, Dost Muhammad Halepoto, Imran Meo, Thamir Al-khlaiwi, Khaled Alkattan and Sami Alnassar and has published in prestigious journals such as Journal of Thoracic and Cardiovascular Surgery, Anesthesia & Analgesia and The Annals of Thoracic Surgery.

In The Last Decade

Waseem Hajjar

47 papers receiving 691 citations

Hit Papers

Novel coronavirus 2019-nCoV: prevalence, biological and c... 2020 2026 2022 2024 2020 100 200 300
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Novel coronavirus 2019-nCoV: prevalence, biological and clinical characteristics comparison with SARS-CoV and MERS-CoV.
    2020 310 citations Sultan Ayoub Meo, Adnan Mahmood Usmani et al. PubMed profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Waseem Hajjar Saudi Arabia 13 214 197 149 141 58 51 716
Katharine Harman United Kingdom 12 140 0.7× 277 1.4× 222 1.5× 70 0.5× 43 0.7× 18 589
Andrew S. Resnick United States 18 102 0.5× 74 0.4× 217 1.5× 146 1.0× 67 1.2× 49 983
Chunquan Cai China 11 98 0.5× 343 1.7× 113 0.8× 73 0.5× 37 0.6× 24 669
Masamichi Hayashi Japan 11 266 1.2× 126 0.6× 87 0.6× 41 0.3× 18 0.3× 59 572
James Regan United States 14 142 0.7× 237 1.2× 107 0.7× 44 0.3× 20 0.3× 26 618
Amirhossein Erfani Iran 11 65 0.3× 275 1.4× 128 0.9× 171 1.2× 112 1.9× 45 690
Keivan Ranjbar Iran 9 77 0.4× 242 1.2× 92 0.6× 171 1.2× 130 2.2× 37 573
Karissa Whiting United States 9 159 0.7× 68 0.3× 146 1.0× 34 0.2× 45 0.8× 32 812

Countries citing papers authored by Waseem Hajjar

Since Specialization
Citations

This map shows the geographic impact of Waseem Hajjar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Waseem Hajjar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Waseem Hajjar more than expected).

Fields of papers citing papers by Waseem Hajjar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Waseem Hajjar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Waseem Hajjar. The network helps show where Waseem Hajjar may publish in the future.

Co-authorship network of co-authors of Waseem Hajjar

This figure shows the co-authorship network connecting the top 25 collaborators of Waseem Hajjar. A scholar is included among the top collaborators of Waseem Hajjar based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Waseem Hajjar. Waseem Hajjar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Meo, Sultan Ayoub, et al.. (2024). Role of artificial intelligence (Google bard) in morphological, histopathological, and radiological image identifications. Saudi Medical Journal. 45(5). 531–536. 2 indexed citations
2.
Hajjar, Waseem, et al.. (2021). Chest Trauma Experience: Incidence, associated factors, and outcomes among patients in Saudi Arabia. Pakistan Journal of Medical Sciences. 37(2). 373–378. 6 indexed citations
3.
Ahmed, Naseer, Maddalena Tessari, Sultan Ayoub Meo, et al.. (2019). Cardioprotective Effects of Sphingosine-1-Phosphate Receptor Immunomodulator FTY720 in a Clinically Relevant Model of Cardioplegic Arrest and Cardiopulmonary Bypass. Frontiers in Pharmacology. 10. 802–802. 8 indexed citations
4.
Hajjar, Waseem, et al.. (2018). Pulmonary Nodular Amyloidosis Mimicking Metastatic Lung Lesion In A Patient With Colon Cancer. Journal of College of Physicians And Surgeons Pakistan. 27(4). 322–324. 1 indexed citations
5.
Meo, Sultan Ayoub, et al.. (2018). Mobile Phone Base Station Tower Settings Adjacent to School Buildings: Impact on Students’ Cognitive Health. American Journal of Men s Health. 13(1). 1817094802–1817094802. 25 indexed citations
6.
Hajjar, Waseem, et al.. (2017). Late Presentation of Aggressive Fibromatosis Involving Head, Neck and Chest Wall.. PubMed. 27(10). 654–656. 2 indexed citations
7.
Hajjar, Waseem, et al.. (2016). Pulmonary hydatid cysts: the naturally occurring models for rupture. Asian Cardiovascular and Thoracic Annals. 24(7). 670–675. 7 indexed citations
8.
9.
Park, Sung Yong, Dae Joon Kim, Abdullah Aldohayan, et al.. (2013). Immune response after systematic lymph node dissection in lung cancer surgery: changes of interleukin-6 level in serum, pleural lavage fluid, and lung supernatant in a dog model. World Journal of Surgical Oncology. 11(1). 270–270. 1 indexed citations
10.
Ahmed, Iftikhar, et al.. (2012). Pneumothorax in pregnancy secondary to ruptured pulmonary hydatid cyst.. PubMed. 22(3). 189–91. 1 indexed citations
11.
Masilamani, V., et al.. (2011). A New Lung Cancer Biomarker—A Preliminary Report. Photomedicine and Laser Surgery. 29(3). 161–170. 8 indexed citations
12.
Eldawlatly, Abdelazeem, et al.. (2011). Continuous positive airway pressure ventilation during whole lung lavage for treatment of alveolar proteinosis -A case report and review of literature. Saudi Journal of Anaesthesia. 5(1). 76–76. 5 indexed citations
13.
Eldawlatly, Abdelazeem, et al.. (2011). Anesthetic considerations of central airway obstruction. Saudi Journal of Anaesthesia. 5(3). 326–328. 3 indexed citations
14.
Abouzied, Mohei, et al.. (2010). Clinical use of combined positron emission tomography and computed tomography in thymoma recurrence. Interactive Cardiovascular and Thoracic Surgery. 11(4). 395–399. 13 indexed citations
15.
Hajjar, Waseem, et al.. (2004). Intra-operative heparin release during lung surgery☆. European Journal of Cardio-Thoracic Surgery. 25(5). 839–843. 2 indexed citations
16.
Eldawlatly, Abdelazeem, et al.. (2003). Anesthetic Implications For Video Assisted Thoracoscopic Thymectomy In Myasthenia Gravis. The Internet Journal of Anesthesiology. 8(1).
17.
Hajjar, Waseem, et al.. (2003). Unusual presentation of rib exostosis. The Annals of Thoracic Surgery. 75(2). 575–577. 24 indexed citations
18.
Hajjar, Waseem, et al.. (2003). Esophago-broncho-cutaneous fistulae and tuberculous mediastinal lymphadenitis.. PubMed. 44(1). 151–3. 1 indexed citations
19.
Hajjar, Waseem, et al.. (2002). Diagnostic Yield of Mediastinal Exploration. Medical Principles and Practice. 11(4). 210–213. 4 indexed citations
20.
Alkattan, Khaled, et al.. (2000). Spontaneous chylothorax--case report.. PubMed. 15(6). 635–42. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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