{'fraction_non_alphanumeric': 0.05327004219409283, 'fraction_numerical': 0.034282700421940926, 'mean_word_length': 5.060702875399361, 'pattern_counts': {'":': 0, '<': 2, '<?xml version=': 0, '>': 2, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Breast Trauma: A Decade of Surgical Interventions And Outcomes From us Trauma Centers.

BACKGROUND
Traumatic breast injuries that require surgical intervention are rare and incompletely studied. The study objective was to define the incidence, mechanism/burden of injury, interventions, and outcomes after breast injuries requiring surgery nationally.


METHODS
All patients with breast trauma necessitating surgery were identified from the National Trauma Data Bank (NTDB) (2006-2017) using ICD-9 and -10 codes, without exclusions. Demographics, injury mechanism/severity, procedures, and outcomes (mortality, hospital length of stay [LOS, days], ICU LOS, and AIS >1 in >1 body regions, defining multisystem trauma) were compared with ANOVA or Chi-squared tests, as appropriate.


RESULTS
In total, 899 patients (.01% of NTDB) met study criteria. Median age was 41 years and most patients were female (n = 802, 89%). Penetrating trauma was the most common injury mechanism (n = 395, 44%), followed by blunt trauma (n = 369, 41%) and burns (n = 135, 15%). Median ISS was higher after blunt trauma than penetrating trauma or burns (10 vs 5 vs 4, P < .001). Laceration repair/mastotomy was the most common procedure among penetrating (n = 354, 90%) and blunt (n = 265, 72%) trauma patients, while mastectomy was the most common after burns (n = 126, 93%). Breast procedures varied significantly by mechanism (P < .001).


CONCLUSION
Breast injuries requiring surgery are uncommon. Most occur following penetrating trauma, although injury severity is highest after blunt trauma and mortality is highest after burns. Procedure type, injury severity, and outcomes varied significantly by mechanism of injury, implying that breast trauma should be considered within the context of injury mechanism. These findings may assist with prognostication after breast trauma necessitating surgical intervention.