Keywords
thoracic trauma, short-term outcome, injury severity score, management of chest trauma
thoracic trauma, short-term outcome, injury severity score, management of chest trauma
Thoracic trauma, located on the chest, is an occurrence or incident of an injury that can disturb daily life activities.1 Trauma will remain as one of the main health problems in the world due to its high mortality and morbidity in both developed and developing countries, in which the number of deaths in the world caused by trauma reached around a total of 5.8 million people every year.2 There are 53% of deaths caused by trauma that happened where the accident occurred, 7.5% of the cases that happened in the emergency room, and a total of 39.5% that happened in the hospitals,3 of deaths, hospitalizations, and long term disability in the first four decades of life.2
In Indonesia, the number of trauma occurrences is still high. Basic Health Research (Riskesdas) of The Ministry of Health of The Republic of Indonesia in 2018 indicates that there is an increasing number of trauma occurrences in Indonesia in which has been recorded in the amount of 8.2% that increased to 9.2% in 2018. The number of thoracic trauma occurrences in the province of Aceh is 4.1%.1 More than 90% of deaths caused by trauma occurred in the countries with the lowest income. This is related to the fact that they have a larger population compared to countries with higher income.4
Thoracic trauma comprises 20-25% of cases of all trauma cases worldwide and is the third most common cause of death after abdominal injury and head trauma in polytrauma patients.2 According to the ATLS protocol, early diagnosis and management of thoracic trauma cases are very important, treatment in the first hours of trauma is the gold standard, it is associated with a greater probability of reducing morbidity and mortality. Thoracic trauma is classified into open (penetrating) and closed (blunt). According to the type of trauma, lesions can be divided into four groups, namely lesions on the thoracic wall, lesions of the lungs, mediastinum, and diaphragm. The most common lesions are rib fractures, injury to the heart, aorta, and diaphragm.5 This research was carried out at the The Zainoel Abidin General Hospital Banda Aceh which is the top referral hospital in the Aceh province. This study aims to see what factors can affect the short-term outcome of trauma patients thorax at The Zainoel Abidin General Hospital Banda Aceh.
This research has received ETHICAL APPROVAL from Health Research Ethics Commision of faculty of medicine of University of Syiah Kuala- DR Zainoel Abidin Hospital (KEPPKN Registrastion Number: 117101P) by number: 301/FK-RSUDZA/2021. Written informed consent was received from the patients.
This study is an analytic observational study with a retrospective cohort method, data collection was carried out at the Medical Record Installation of The Zainoel Abidin General Hospital Banda Aceh. The time of data collection occurred August 20th to October 20th, 2020. Sampling used a total technique that meets the inclusion criteria, namely patients who are diagnosed with thoracic trauma and are willing to be interviewed by the researcher. The exclusion criteria are all those patients diagnosed with thoracic trauma who have incomplete, not found and broken data in the medical records files according to the research variables. This study used multivariate data analysis using logistic regression to assess the factors that influence the short-term outcome of thoracic trauma patients. All data analysis was done using IBM SPSS, Statistics standard 25.
Research on short-term outcome analysis of thoracic trauma patients at The Zainoel Abidin General Hospital Banda Aceh in the 2019-2020 period recorded 260 patients. During data collection at the Medical Record Installation, 169 medical records were obtained and 91 data were not found. The obtained data recorded a total of 144 patients experiencing thoracic trauma, but three of them did not meet the inclusion and exclusion criteria of the study. The sample in this study amounted to 141 medical records (Figure 1). Based on Table 1 the number of thoracic trauma patients on males is dominating, namely 101 (71.63%) cases. Furthermore, the majority of the length of stay for thoracic trauma patients was less than 7 days with an average length of stay of 9 days, where there were 63 (44.68%) cases during 2 years of observation. As many as 58 (41.13%) cases were recorded for 7-14 days and 20 (14.19%) were recorded for >14 days. Regarding thoracic trauma type, 138 (97.87%) were blunt in which the blunt trauma was caused by traffic accidents on motorcycle users, which recorded as many as 83 (58.7%) cases. In 3 (2.13) patients experience the penetrating trauma, mostly caused by being stabbed with iron (Table 1).
MV: Mechanical Ventilation.
Table 2 shows that the majority of thoracic trauma patients do not use a ventilator, which consists of 122 (86.52%) cases, while those who use a ventilator are recorded as 19 (13.48%) cases. Most of the patients, exactly as many as 18 (12.77%), use less than 96 hours duration and 1 (0.71%) patient was recorded to use for more than 96 hours duration. There are 139 (98.58%) thoracic trauma patients who had no complications of sepsis, but 2 (1.42%) thoracic trauma patients were diagnosed with sepsis during hospitalization (Table 3). The qSOFA score in the majority of thoracic trauma patients was 0 in 117 (82.98%) cases, followed by 1 in 19 (13.48%) cases, and 2 in 5 (3.55%) cases. Moreover, the injury severity score in the majority of thoracic trauma patients was in the <16 (low) group, namely 87 (61.70%) cases, followed by the 16-30 (moderate) group, which was 54 (38.30%) cases.
The majority of patients with thoracic trauma were diagnosed with rib fractures (fracture costae) as 42 (29.77%) cases, followed by rib and clavicle fractures in 23 (16.31%) cases, clavicle fractures in 18 (12.77%), pulmonary contusion were recorded in 7 (4.96%) cases, rib fractures with hematothorax in 10 (7.09%) cases, hematothorax and pneumothorax in 5 (3.55%) and 2 (1.42%) cases respectively. In addition, there were 1 (0.71%) cases of each flail chest and cardiac tamponade (Table 3).
In our study 16 (11.35%) out of 141 patients only needed conservative treatment including chest physiotherapy and analgesics, while 125 (88.65%) patients need operative treatment where open reduction internal fixation (ORIF) with chest tube insertion was the common modality to treat thoracic trauma victims, followed by thoracotomy and video assisted thoracic surgery (VATS). In addition, decompression thoracic vertebrae was found in 1 (0.71%) cases (Table 4).
Our study shows the highest incidence of thoracic trauma occurred in patients with male gender, research conducted by Christoporus et al. stated that the reason for the male gender experiencing chest trauma more often was because the level of activity carried out by men was higher than women, male occupations are mostly done outside the home. In addition to that, men also tend to pay less attention to safety when driving a motorized vehicle.6 Based on Table 1, the majority of thoracic traumas occur due to blunt objects, the increasing incidence of blunt trauma is caused by an increase in population and high traffic flow. The study of Jigar et al. in India stated that the type of injury faced by a geographical area depends on civilization, society, culture and industrialization.7 Meanwhile, penetrating trauma is usually determined by the level of crime and violence that occurs in the community in the area itself. Furthermore, the causes of thoracic trauma with the type of blunt trauma are caused by traffic accidents on motorcycle users, which is recorded as many as 83 (58.7%) cases. During the 2015-2019 period the number of traffic accidents increased by 4.87% per year. In the report by the National Police Traffic Corps, it is stated that motorcycle accidents still dominate in Indonesia, this is because the majority of Indonesian people use motorcycles. This can occur due to non-compliance of motorcyclists to traffic signs and speed when driving a motorized vehicle.
The length of stay for chest trauma patients depends on the severity of the trauma and other additional injuries. Many factors affect the length of stays such as the type of injury, complications that occur during treatment, and the treatment in the intensive care unit.8 The study of Eray et al. said that there was a relationship between oxygen saturation and length of stay, namely the lower the oxygen saturation of trauma patients, the longer the length of stay. In addition, deaths that occur early in treatment are the reason for shorter hospital stays.9 in this study length of stay of patients with chest trauma were less than sevem days. A study in Sri Lanka said that the presence of flail chest and injury to the trachea was associated in length of stay patients with chest trauma.10
According to Table 2, the presence of pulmonary contusions with or without flail chest is usually associated with a high incidence of ventilator use.11 The presence of pulmonary contusions can injure small airways and damaged capillaries and epithelial cells. These conditions can cause an increase in pulmonary capillary permeability which will cause alveolar edema. The previous study shows significantly that severe rib fractures were associated with a long mechanical ventilation period. Hence, the assessment of the extent of rib fractures could estimate the requirement of mechanical ventilation and prolong ICU days.12 In this study, patients who required the use of a ventilator and had access to it tended to have a high probability of getting a good outcome or living. This is in line with the research conducted by Niloofar et al. in Canada.13 Moreover, there is a significant relationship between the duration of the ventilator and the short-term outcome of thoracic trauma patients. In this study, patients who did not require the use of a ventilator tended to have a fairly good short-term outcome. Our study reported that 2 out of 141 patients with chest trauma fell into the septic condition. Patients falling into the septic condition is usually caused by open wounds and chest tube insertion. Otherwise, a study in Tanzania revealed that sepsis is the most common complication in chest trauma patients, this difference is caused by the quality of attention provided to patients between the two countries.14
There was a significant relationship between qSOFA scores and short-term outcomes of thoracic trauma patients. This is in line with the research conducted by Wenjuang et al. in Taiwan in 2021 where the study stated that the higher the qSOFA score of trauma patients, the worse the outcome (Table 2).15 Furthermore, there is a significant relationship between ISS scores and short-term outcomes of thoracic trauma patients. This is in line with the research conducted by Monafisha et al. in Tanzania which showed that there was a significant relationship between ISS scores and the outcome of thoracic trauma patients.14 In addition, the study conducted by Sadiye et al. in Turkey also shows the same thing.16 Based on Table 3, there is a significant relationship between the diagnosis and the short-term outcome of thoracic trauma patients. This is different from the research from Ethiopia in 2020 that stated that there was no significant relationship between the diagnosis and the outcome of thoracic trauma patients. The difference probably because the study only used primary diagnoses of thoracic trauma patients.17 Meanwhile, a study in Germany, which examined the outcome of thoracic trauma patients, said that rib fractures indicate death at an advanced age and the number of rib fractures correlates with poor outcomes. Bilateral flail chest is associated with increased mortality and injury to intrathoracic vessels and cardiac lacerations are associated with high mortality and prolonged ventilation also causes significant morbidity in chest trauma patients.18 Based on Table 4, there is a significant relationship between management and short-term outcomes of thoracic trauma patients. This is in line with research conducted by Ararso et al. in Ethiopia in 2020 which stated that there was a significant relationship between treatment and outcome of thoracic trauma patients. The study divided the management into conservative and operative which consisted of insertion of a chest tube and thoracotomy.17 a study conducted by Hafiz in the UK said that surgery performed within the first 48 hours resulted in shorter ICU stays, reduced risk of complications such as pneumonia, shorter hospital stays and shorter use of intensive ventilation overall.19 Research conducted by Christian et al in Switzerland stated that the return to work rate for 6 months after chest trauma was higher in the open reduction internal fixation (ORIF) group. Symptoms such as subjective dyspnea, chest pain, and chest stiffness were common in the nonoperative group 6-12 months after the trauma.20
Based on Table 5, the variable that has a greater influence on the short-term outcome of thoracic trauma patients is the ISS score, in which patients that have lower ISS score have 11 times greater chance compared to the patients with the higher ISS score. This is in line with research conducted by Monafisha et al. in Canada where research shows that patients who have a high ISS score have a six times risk of producing a poor outcome.14 The same thing was also stated by Sadiye et al. In Turkey, where the ISS score is an important prognostic factor in the outcome of thoracic trauma patients, the higher the ISS score, the more severe the trauma.16
The limitation of this study is we only used data from Dr. Zainoel Abidin General Hospital, which represent a chest trauma population with a majority of blunt trauma. Furthermore, this study was conducted in the tertiary care hospital, hence, the patients with less severe trauma who have been managed in primary care are underrepresented. Also, patients who had died at the accident scene or at the emergency room were not assessed in our study.
In summary, thoracic trauma is a public health problem among all trauma admissions at Dr. Zainoel Abidin General Hospital. The majority of chest traumas are caused by road traffic accidents especially motorbikes due to the population of motorbike users being still high. Injury severity score is the most influential factor to the short-term outcome of patients with thoracic trauma, where the lower the ISS score, the greater chance of survival compared to a higher score.
Data cannot be shared due to ethical and security concerns, nevertheless, a dataset with all the details can be shared with reviewer or readers at reasonable request to corresponding author.
All authors have read and approved the final manuscript. The requirements for authorship have been met, and each author believes that the manuscript represents honest work.
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Is the work clearly and accurately presented and does it cite the current literature?
Partly
Is the study design appropriate and is the work technically sound?
Partly
Are sufficient details of methods and analysis provided to allow replication by others?
Yes
If applicable, is the statistical analysis and its interpretation appropriate?
Partly
Are all the source data underlying the results available to ensure full reproducibility?
Partly
Are the conclusions drawn adequately supported by the results?
Yes
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: thoracic pathologies benign , malignant , trauma
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