Osaid H. Alser

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ORCID

Inclusion identifies researchers whose recorded research contributions may inform their university’s understanding of its research community. It does not rank individual research quality or establish current employment.

Selected research works

Up to 100 highly cited works; DOI links open the original research. Counts reflect the collected record, not real-time citation totals.

1. Mortality and pulmonary complications in patients undergoing surgery with perioperative SARS-CoV-2 infection: an international cohort study

   2020 · 1,711 citations

2. Infection and mortality of healthcare workers worldwide from COVID-19: a systematic review

   2020 · 713 citations

3. Surgical site infection after gastrointestinal surgery in high-income, middle-income, and low-income countries: a prospective, international, multicentre cohort study

   2018 · 481 citations

4. Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries

   2021 · 330 citations

5. Effect of COVID-19 pandemic lockdowns on planned cancer surgery for 15 tumour types in 61 countries: an international, prospective, cohort study

   2021 · 289 citations

6. Risk of hydroxychloroquine alone and in combination with azithromycin in the treatment of rheumatoid arthritis: a multinational, retrospective study

   2020 · 258 citations

7. Elective Cancer Surgery in COVID-19–Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study

   2020 · 223 citations

8. Gastrointestinal Complications in Critically Ill Patients With COVID-19

   2020 · 211 citations

9. Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

   2021 · 192 citations

10. Delaying surgery for patients with a previous SARS-CoV-2 infection

    2020 · 139 citations

11. Deep phenotyping of 34,128 adult patients hospitalised with COVID-19 in an international network study

    2020 · 123 citations

12. The evidence behind the use of platelet-rich plasma (PRP) in scar management: a literature review

    2018 · 98 citations

13. Thirty-Day Outcomes of Children and Adolescents With COVID-19: An International Experience

    2021 · 81 citations

14. Pooled analysis of WHO Surgical Safety Checklist use and mortality after emergency laparotomy

    2019 · 81 citations

15. Elective surgery system strengthening: development, measurement, and validation of the surgical preparedness index across 1632 hospitals in 119 countries

    2022 · 74 citations

16. Use of repurposed and adjuvant drugs in hospital patients with covid-19: multinational network cohort study

    2021 · 68 citations

17. Preoperative nasopharyngeal swab testing and postoperative pulmonary complications in patients undergoing elective surgery during the SARS-CoV-2 pandemic

    2020 · 66 citations

18. Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

    2023 · 60 citations

19. Outcomes of gynecologic cancer surgery during the COVID-19 pandemic: an international, multicenter, prospective CovidSurg-Gynecologic Oncology Cancer study

    2022 · 60 citations

20. COVID-19 in patients with autoimmune diseases: characteristics and outcomes in a multinational network of cohorts across three countries

    2021 · 57 citations

21. Development of a field artificial intelligence triage tool: Confidence in the prediction of shock, transfusion, and definitive surgical therapy in patients with truncal gunshot wounds

    2021 · 48 citations

22. Risk of depression, suicide and psychosis with hydroxychloroquine treatment for rheumatoid arthritis: a multinational network cohort study

    2020 · 48 citations

23. Machine learning risk prediction of mortality for patients undergoing surgery with perioperative SARS-CoV-2: the COVIDSurg mortality score

    2021 · 47 citations

24. Combating infections under siege: Healthcare challenges amidst the military assault in Gaza

    2024 · 45 citations

25. Acute Kidney Injury in Critically-ill Patients With COVID-19

    2020 · 41 citations

26. Long-term patient-reported symptoms of COVID-19: an analysis of social media data

    2020 · 41 citations

27. Task-Shifting and Task-Sharing in Neurosurgery: An International Survey of Current Practices in Low- and Middle-Income Countries

    2019 · 40 citations

28. Trauma care supported through a global telemedicine initiative during the 2023–24 military assault on the Gaza Strip, occupied Palestinian territory: a case series

    2024 · 39 citations

29. Treatment Options for Dupuytren’s Disease: Tips and Tricks

    2022 · 39 citations

30. Death following pulmonary complications of surgery before and during the SARS-CoV-2 pandemic

    2021 · 39 citations

31. Serious complications and risk of re-operation after Dupuytren’s disease surgery: a population-based cohort study of 121,488 patients in England

    2020 · 37 citations

32. Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study

    2022 · 35 citations

33. Healthcare workers preparedness for COVID-19 pandemic in the occupied Palestinian territory: a cross-sectional survey

    2021 · 32 citations

34. Nongenetic Factors Associated with Dupuytren’s Disease: A Systematic Review

    2020 · 31 citations

35. Multisystem outcomes and predictors of mortality in critically ill patients with COVID-19: Demographics and disease acuity matter more than comorbidities or treatment modalities

    2021 · 30 citations

36. Patterns of war related trauma in Gaza during armed conflict: survey study of international healthcare workers

    2025 · 28 citations

37. Modulating Nanoparticle Size to Understand Factors Affecting Hemostatic Efficacy and Maximize Survival in a Lethal Inferior Vena Cava Injury Model

    2022 · 28 citations

38. Unraveling COVID-19: A Large-Scale Characterization of 4.5 Million COVID-19 Cases Using CHARYBDIS

    2022 · 26 citations

39. Rhabdomyolysis in Severe COVID-19: Male Sex, High Body Mass Index, and Prone Positioning Confer High Risk

    2021 · 25 citations

40. Global variation in anastomosis and end colostomy formation following left‐sided colorectal resection

    2019 · 23 citations

41. A prognostic model for use before elective surgery to estimate the risk of postoperative pulmonary complications (GSU-Pulmonary Score): a development and validation study in three international cohorts

    2024 · 22 citations

42. COVID-19-related absence among surgeons: development of an international surgical workforce prediction model

    2020 · 21 citations

43. Global economic burden of unmet surgical need for appendicitis

    2022 · 20 citations

44. Virtual surgical planning in craniomaxillofacial surgery: A systematic review and meta-analysis of accuracy, operative time, and cost-effectiveness

    2025 · 19 citations

45. Global overview of the management of acute cholecystitis during the COVID-19 pandemic (CHOLECOVID study)

    2022 · 19 citations

46. Characteristics and outcomes of 627 044 COVID-19 patients living with and without obesity in the United States, Spain, and the United Kingdom

    2021 · 19 citations

47. Underuse and Variability in Substance Use Screening Among Adult Trauma Patients in the U.S.

    2021 · 15 citations

48. Characteristics and outcomes of patients with COVID-19 with and without prevalent hypertension: a multinational cohort study

    2021 · 15 citations

49. COVID-19 in Gaza: a pandemic spreading in a place already under protracted lockdown

    2020 · 15 citations

50. Esophageal caustic injuries in pediatrics: a sobering global health issue

    2019 · 15 citations

51. Using the Field Artificial Intelligence Triage (FAIT) tool to predict hospital critical care resource utilization in patients with truncal gunshot wounds

    2023 · 14 citations

52. Indications and Outcomes of Completion Cholecystectomy: A 5-year Experience From a Rural Tertiary Center

    2022 · 13 citations

53. Intraoperative uses of near-infrared fluorescence spectroscopy in pediatric surgery: A systematic review

    2022 · 13 citations

54. Comment on “Gastrointestinal Complications in Critically Ill Patients With COVID-19”

    2020 · 13 citations

55. Urgent call for protecting health-care workers in Palestine

    2023 · 11 citations

56. Use of dialysis, tracheostomy, and extracorporeal membrane oxygenation among 842,928 patients hospitalized with COVID-19 in the United States

    2020 · 10 citations

57. Characteristics and Outcomes of Over 300,000 Patients with COVID-19 and History of Cancer in the United States and Spain

    2021 · 9 citations

58. A novel three-in-one silicone model for basic microsurgery training

    2020 · 9 citations

59. Characteristics and outcomes of COVID-19 patients with and without asthma from the United States, South Korea, and Europe

    2022 · 8 citations

60. Refugee access to COVID-19 vaccines in Lebanon

    2021 · 8 citations

61. Baseline phenotype and 30-day outcomes of people tested for COVID-19: an international network cohort including >3.32 million people tested with real-time PCR and >219,000 tested positive for SARS-CoV-2 in South Korea, Spain and the United States

    2020 · 8 citations

62. Provocative Angiography, Followed by Therapeutic Interventions, in the Management of Hard‐To‐Diagnose Gastrointestinal Bleeding

    2020 · 8 citations

63. Characterization of long-term patient-reported symptoms of COVID-19: an analysis of social media data

    2021 · 7 citations

64. Unraveling COVID-19: a large-scale characterization of 4.5 million COVID-19 cases using CHARYBDIS

    2021 · 7 citations

65. “Clinical characteristics, symptoms, management and health outcomes in 8,598 pregnant women diagnosed with COVID-19 compared to 27,510 with seasonal influenza in France, Spain and the US: a network cohort analysis”

    2020 · 6 citations

66. Delayed onset phlegmasia cerulea dolens post-SARS-CoV-2 infection treated with minimally invasive clot retrieval technology

    2022 · 5 citations

67. Modified Frailty Index-5 Score and Post-Operative Infectious Complications in Patients Undergoing Surgery for Intestinal-Cutaneous Fistula: A Nationwide Retrospective Cohort Analysis

    2021 · 5 citations

68. Surgical Capacity Assessment and Leverage in the Palestinian Land (SCALPEL-I) Study: The First Nationwide Plastic Surgery Capacity Evaluation in Palestine

    2024 · 4 citations

69. Development and external validation of the ‘Global Surgical-Site Infection’ (GloSSI) predictive model in adult patients undergoing gastrointestinal surgery

    2024 · 4 citations

70. Morphine for Gaza? Limits of care during genocidal violence

    2024 · 4 citations

71. Health Care Workers and War in the Middle East

    2023 · 4 citations

72. User-centred innovation to advance safe surgery at the point of need: report on development of the SurgiField system

    2022 · 4 citations

73. Preoperative frailty predicts postoperative outcomes in intestinal-cutaneous fistula repair

    2021 · 4 citations

74. Heterogeneity and temporal variation in the management of COVID-19: a multinational drug utilization study including 71,921 hospitalized patients from China, South Korea, Spain, and the United States of America

    2020 · 4 citations

75. Surgical Capacity Assessment and Leverage in the PalEstinian Land (SCALPEL-I) Study: The First Nationwide Plastic Surgery Capacity Evaluation in Palestine

    2023 · 3 citations

76. Neoadjuvant chemoradiotherapy versus neoadjuvant chemotherapy for patients with stage III-N2M0 non-small cell lung cancer (NSCLC): A population-based study.

    2022 · 3 citations

77. Healthcare Workers Preparedness for COVID-19 Pandemic in The Occupied Palestinian Territory: A Cross-Sectional Survey

    2020 · 3 citations

78. Surgical site infections following gastrointestinal surgery in Palestine: a multicentre, prospective cohort study

    2019 · 3 citations

79. The effect of the 50-day conflict in Gaza on children: a descriptive study

    2017 · 3 citations

80. Medical education in Gaza: navigating disruption during the 2023–2025 Israeli military assault and beyond

    2026 · 2 citations

81. 30-day postoperative mortality and the effects of hospital preparedness during the COVID-19 pandemic: a pooled analysis of prospective international cohort studies

    2026 · 2 citations

82. Using the Field Artificial Intelligence Triage Tool to Predict Hospital Utilization Outcomes in Patients with Gunshot Wounds

    2021 · 2 citations

83. Expanding the Field Artificial Intelligence Triage Tool: A Novel Prediction Tool for Internal Injury Patterns in Gunshot Wound Victims

    2021 · 2 citations

84. Global wealth disparities drive adherence to COVID-safe pathways in head and neck cancer surgery

    2021 · 2 citations

85. Peri-operative blood transfusion and risk of infectious complications following intestinal-cutaneous fistula surgical repair: A retrospective nationwide analysis

    2021 · 2 citations

86. Palliative Reconstructive Surgery for Advanced Maxillofacial Osteosarcoma in the Peak of COVID-19 Pandemic: A Matter of Ethical Decision-making

    2021 · 2 citations

87. Distance-learning collaborations for rapid knowledge sharing to the occupied Palestinian territory during the COVID-19 response: experience from the OxPal partnership

    2021 · 2 citations

88. War-related emergency laparotomy and thoracotomy injuries and their operative outcomes in a makeshift surgical unit in Gaza during the 2023 – 2025 war

    2026 · 1 citations

89. Medical research ethics in active war and conflict zones: the case of Gaza

    2025 · 1 citations

90. Outcomes of Combined Opioids and Benzodiazepines Consumption in Elderly Trauma: A Retrospective Cohort Study

    2024 · 1 citations

91. Inclusivity at surgical meetings: Can we do better through food?

    2023 · 1 citations

92. Characteristics and outcomes of COVID-19 patients with and without asthma from the United States, South Korea, and Europe

    2022 · 1 citations

93. Rebuilding Global Plastic Surgery Services and Safeguarding Workforce Density after COVID-19

    2021 · 1 citations

94. Advances in Breast Cancer Sentinel Lymph Node Localization Modalities: A Systematic Review

    2026 · 0 citations

95. The use of Mobile Surgical Units in austere environments and rural areas: a systematic review

    2026 · 0 citations

96. The use of Mobile Surgical Units in austere environments and rural areas: a systematic review

    2026 · 0 citations

97. D154. Virtual Surgical Plaining in Craniomaxillofacial Surgery: What is the State Of Evidence?

    2025 · 0 citations

98. 537 Efficacy and Safety of Tranexamic Acid in Burn Surgery: A Comprehensive Systematic Review

    2025 · 0 citations

99. A case series on trauma care in Gaza: reflections – Authors' reply

    2025 · 0 citations

100. Acute Pancreatitis: Surgical Therapies

     2025 · 0 citations

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