Background: Road traffic injury (RTI) is a significant yet poorly characterized cause of morbidity and mortality in the Middle East. This hospital-based-study examined RTI in Lebanon and provided an understanding of their characteristics. Methods:We collected prospective RTI data from three participating hospitals over 3 months using a designed tool based on Canadian CHIRPP and WHO tools. We performed logistic regression analysis to examine the relationship between contributing risk factors (age, sex) and injury types as well as the association of safety measures used (seatbelts or helmets) and body parts injured.Results: A total of 153 patients were collected. Male preponderance with 72%, with mean age 32.6 (SD = 14.9) years. RTI was highest among passengers aged 15 to 29 (48%). Motorcyclists comprised the greatest injury proportion (38%), followed by vehicle-occupants (35%), and pedestrians (25%) (P = .04). Hip injuries represented the most affected body part (48.7%), followed by head/neck (38.2%). Only 31% (n = 47) of victims applied safety measures (seatbelts or helmets). Six drivers (7%) reported cell phone use at collision. The use of safety measures was associated with a substantial reduction in head/neck injuries (P = .03), spine injuries (P = .049), and lower risk of traumatic brain injury (TBI) (P = .02).Conclusions: RTI is a major health problem in Lebanon. Safety measures, though poorly adhered to, were associated with less severe injuries, and should be further promoted via awareness campaigns and enforcement. Trauma registries are needed to assess the RTI burden and inform safety interventions and quality-of-care improvement programs. K E Y W O R D S middle eastern region' Lebanon, road traffic injury, traumatic brain injury 1 | INTRODUCTION Road traffic injury (RTI) is one of the leading causes of mortality and morbidity among young adults aged 15 to 29 years globally, yet it remains a neglected public health problem in many countries. 1-3 Approximately 1.35 million RTI related deaths occur annually, making it the eighth leading cause of mortality globally, and predicted to become the fifth leading cause of death by 2030. 3 RTI morbidity
Background There is an increase in the use of neoadjuvant chemotherapy (NACT) to downstage breast cancer. Sentinel lymph node biopsy (SLNB) has replaced Axillary lymph node dissection (ALND) as a standard of care for the treatment of breast cancer patients with negative axilla at presentation. However, the reliability of SLNB after NACT in patients with initially node-positive breast cancer is still controversial and debatable. This meta-analysis was conducted to investigate the accuracy and feasibility of SLNB after NACT in patients presented with positive axillary lymph nodes. Methods A comprehensive literature search was conducted using Medline, PubMed, Embase, Central, and SCOPUS for studies from their date of inception till April 2021 on the performance of SLNB following NACT in clinically node-positive breast cancer patients. We included prospective studies including breast cancer patients with positive lymph nodes at diagnosis, receiving neoadjuvant chemotherapy before undergoing an SLNB, irrespective of their molecular subtypes or breast cancer stage. We excluded retrospective studies, case reports, review articles, and letter to editors. The main outcomes of interest were the false negative rate (FNR) and the identification rate (IR). We also aimed to investigate the accuracy, negative predictive value (NPV), positive predictive value (PPV), specificity, and sensitivity of the SLNB procedure. Results An aggregate of 33 studies were included in this meta-analysis enrolling 4624 patients. The pooled identification rate (IR) was 88% (95% CI: 86-90; heterogeneity I2: 80.93 %) and the false negative rate (FNR) was 13% (95% CI: 11-15; heterogeneity I2: 72.31%). The pooled accuracy, NPV, PPV, specificity and sensitivity were 91.8% (95% CI: 69.39 -114.3), 82.8% (95%CI: 60.19-105.52), 98.2% (95%CI: 65.86 -130.63), 93.7% (95 CI%: 32.4 -155.03), 82.1% (95%CI: 58.38- 107.24) respectively. Conclusion In this comprehensive meta-analysis, we were able to review the largest number of studies (N=33) and patients (N=4624). We carried out this study with the intention to overcome the limitations of previously conducted meta-analyses such as including retrospective studies and a mixed population of clinically node-positive and node-negative breast cancer patients. Based on current findings, the usage of SLNB instead of ALND for the treatment of node-positive breast cancer patients is acceptable. However, further analysis is needed for the improvement of SLNB performance. Keywords: Sentinel lymph node biopsy; Breast cancer; Node positive; Neoadjuvant chemotherapy. Citation Format: Mariam Zahwe, Abir Ghzaiel, Malak Ghezzawi, Sarah El Iskandarani, Marwa Diab, Lara Soueid, Miryam El Jibbawi, Ahmad Najia, Khalil El Asmar, Eman Sbaity. Performance of Sentinel Lymph Node Biopsy after Neoadjuvant Chemotherapy in Clinically Node Positive Breast Cancer Patients: Systematic Review and Meta-analysis [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P4-07-25.
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