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PubMedDate not supplied

Outcome of cardiopulmonary resuscitation in patients on chronic dialysis.

The authors analyzed the outcome of 56 episodes of cardiopulmonary resuscitation (CPR) in dialysis patients. Eleven patients (20%) left the hospital alive. Univariate analysis showed that a functional cause of cardiac arrest, absence of rib fractures, and the occurrence of cardiac arrest in the dialysis or intensive care units were associated with a favorable outcome. Logistic regression showed that the outcome of CPR was related to the presence of rib fractures, cause of arrest, degree of preexisting heart disease, and patient age. Despite the high incidence of rib fractures (77%), the outcome of CPR in dialysis patients is similar to its outcome in the general population.

Aged↗
PubMed1992

Fractures of the rib head in abused infants.

Fractures of the posterior ribs are well-recognized sequelae of infant abuse. Previous reports have indicated a predilection for fracture near the costotransverse process. This study expands the spectrum to include fractures involving the rib head. The radiologic and histologic features are described, and the mechanism of injury of this lesion is examined. In situ and specimen radiography, followed by histopathologic examination, was performed in 78 ribs removed from seven abused infants who died with posterior rib fractures. Computed tomography of the intact posterior thorax was performed in two of these infants. Fifty posterior rib fractures were identified; 29 involved the rib head. Frontal radiography was insensitive in identifying these fractures, clearly revealing injury only when periosteal reaction was present (four of 29 cases). Axial specimen radiography delineated the fractures in all cases. In the two infants studied, CT depicted five of 19 fractures visible only with axial specimen radiography. The morphologic features of these fractures further support the concept that most fractures in abused infants occur by means of indirect forces and are consistent with anteroposterior manual thoracic compression during assaults.

Child Abuse↗
PubMed2002

Observer performance studies: detection of single versus multiple abnormalities of the chest.

OBJECTIVE: We used receiver operating characteristic (ROC) analysis to compare two methods of evaluating observer performance in detecting an abnormality on chest radiographs. In the first method, the abnormality in question, rib fracture, was one of five investigated, and it was the only one of interest in the second. MATERIALS AND METHODS: Eight experienced observers viewed 117 posteroanterior chest radiographs in two interpretation modes. Fifty-four of these images depicted rib fractures that had been rated as subtle for detection. The likelihood of the presence of a rib fracture was rated as one of five abnormalities in question in one mode and the sole abnormality of interest in the other mode. RESULTS: Six of the observers performed better during the single-abnormality mode, one performed equally well in both modes, and one performed better during the multiple-abnormality mode. The average area under the ROC curves (A(z)) was 0.73 +/- 0.07 for the multiple-abnormality mode and 0.80 +/- 0.04 for the single-abnormality mode. The results were significantly different (p < 0.05). CONCLUSION: Study methodology can significantly affect the results in ROC studies, particularly for abnormalities that may not be perceived as primary or important. The order in which abnormalities appear on a checklist report form may be important.

Area Under Curve↗
PubMed1999

Delayed traumatic hemothorax on ticlopidine and aspirin for coronary stent.

A 64-year-old man presented with worsening dyspnea on exertion and hemothorax of the left chest 7 days after discharge from the hospital on ticlopidine and aspirin after coronary stent placement to his left circumflex artery. He had suffered traumatic rib fractures to the seventh, eighth, and ninth left ribs 28 days before this presentation and 21 days before starting the ticlopidine. Results of chest radiography at discharge 7 days earlier while on aspirin and after brief IV heparin had been negative except for minimal atelectasis and rib fractures barely visible on posteroanterior view. The delayed hemothorax had lowered the peripheral blood hematocrit to 23% and required tube thoracostomy drainage and blood transfusion. The delayed traumatic hemothorax in this case occurred on treatment with ticlopidine and did not recur with continuation of aspirin alone.

Aspirin↗
PubMed2005

Prevalence of delayed hemothorax in blunt thoracic trauma.

Delayed hemothorax (DHTX) is rarely seen. On an 8-year retrospective analysis of blunt thoracic trauma (BTT), hemothorax (HTX) was diagnosed in 167 patients: 18 children, 113 adults, and 36 elderly. No statistical differences were seen in any age groups regarding Injury Severity Score (mean ISS, 30.54), critical care length of stay (CLOS, 9.0), and hospital LOS (HLOS, 11.21). Mortality rate was 18 per cent in adults and 28 per cent in elderly (P value < 0.0001). HTX was acute in 160 and delayed in 7 patients. Two-thirds of HTX patients were males and 75 per cent had rib fractures. All of our DHTX patients were males (5 adults and 2 elderly) and had rib fractures. Acute HTX was seen in younger patients (43.3 vs 56.1 years, P value 0.46), with higher ISS (31.44 vs 14.43, P value < 0.001), CLOS (7.19 vs 3.0 days, P value 0.511) and HLOS (11.9 vs 11.6, P value 0.468). Mortality was 22.5 per cent in AHTX and none in DHTX. Eighty-six per cent of DHTX and 49 per cent of AHTX patients went home on discharge. DHTX was rare (5%) in the current report with lower ISS, HLOS, and no mortality. Patients with rib fractures should be watched for development of DHTX as timely diagnosis and treatment is essential for favorable outcome.

Adolescent↗
PubMed1998

Costochondral junction fractures and intra-abdominal trauma in non-accidental injury (child abuse).

Rib fractures are a common skeletal manifestation of non-accidental injury (NAI) in infants and young children and are generally considered to be highly specific for abuse. There are, however, relatively few descriptions of fractures involving the costochondral junctions in NAI. We present three children (two boys, one girl; 7, 18, and 36 months of age) with anterior rib fractures which involved the sixth to ninth costochondral junctions. The fractures were bilateral in two children and symmetrical in one. They had appearances analogous to 'bucket handle' metaphyseal fractures of long bones. They were difficult to visualise and healed with minimal callus formation. These fractures were associated with major abdominal visceral injuries, which in themselves carry a significant morbidity and mortality. The importance of recognising such fractures is highlighted.

Abdominal Injuries↗
PubMed1991

Assessment of osteoporosis at autopsy: mechanical methods compared to radiological and histological techniques.

Osteoporosis is a common problem in the elderly female population and pathological fractures are a frequent complication, but how should the pathologist assess the severity of the disease at autopsy? In this study we have compared subjective, semi-quantitative assessments of rib fracturability, vertebral compressibility, Singh index and histomorphometric methods against a 'gold standard' assessment, namely the force required to fracture the femoral neck. We have shown good correlations between rib fracturability. Singh index and the standard chosen. Poor correlation was shown between histomorphometric techniques and the standard. Our findings suggest that gross rib fracturability is a good indicator of osteoporosis in as far as bone fragility is an indicator of the severity of osteoporosis. However, as the population under examination was small, further studies in this area are clearly warranted in order to extend these findings.

Aged↗
PubMed2005

The role of door orientation on occupant injury in a nearside impact: a CIREN, MADYMO modeling and experimental study.

OBJECTIVE: This study addressed the effects of vehicle height mismatch in side impact crashes. A light truck or SUV tends to strike the door of a passenger car higher causing the upper border to lead into the occupant space. Conversely, an impact centered lower on the door, from a passenger car, causes the lower border to lead. We proposed the hypothesis that the type of injury sustained by the occupant could be related to door orientation during its intrusion into the passenger compartment. METHOD: Data on door orientation and nearside occupant injuries were collected from 125 side impact crashes reported in the CIREN database. Experimental testing was performed using a pendulum carrying a frame and a vehicle door, impacting against a USDOT SID. The frame allowed the door orientation to be changed. A model was developed in MADYMO (v 6.2) using the more biofidelic dummies, BIOSID, and SIDIIs as well as USDOT SID. RESULTS: In side impact crashes with the lower border of the door leading, 81% of occupants sustained pelvic injury, 42% suffered rib fractures, and the rate of organ injury was 0.84. With the upper border leading, 46% of occupants sustained pelvic injury, 71% sustained rib fracture, and the rate of organ injuries per case increased to 1.13. The differences in the groups with respect to pelvic injury were significant at p = 0.01, rib fracture, p = 0.10, and organ injury, p = 0.001. Experimental testing showed that when the door angle changed from lower to upper border leading, peak T4 acceleration increased by 273% and pelvic acceleration decreased by 44%. The model demonstrated that when the door angle changed from lower to upper border leading, the USDOT SID showed a 29% increase in T4 acceleration and a 57% decrease in pelvic acceleration. The BIOSID dummy demonstrated a 36% increase in T1 acceleration, a 44% increase in abdominal rib 1 deflection, a 91% increase in thoracic rib 1 deflection, and a 33% decrease in pelvic acceleration. CONCLUSIONS: These data add more insight to the problem of mismatch during side impacts, where the bumper of the striking vehicle overrides the door beam, causing the upper part of the door to lead the intrusion into the passenger compartment. Even with the same delta V and intrusion, with the upper border of the door leading, more severe chest and organ injuries resulted. This data suggests that door orientation should be considered when testing subsystems for side impact protection.

Acceleration↗
PubMed2006

The role of the follow-up chest radiograph in suspected non-accidental injury.

BACKGROUND: Rib fractures in children under the age of 2 years have a strong correlation with non-accidental injury (NAI). Follow-up radiographs can improve detection. OBJECTIVE: To evaluate the value of the follow-up chest radiograph in suspected non-accidental injury. MATERIALS AND METHODS: The study included all children less than 2 years of age who were investigated for suspected NAI in our institution between January 1998 and October 2003. Prior to January 2000, only selected patients were asked to attend for a follow-up chest radiograph. From January 2000 onwards all children were asked to reattend. RESULTS: Of 200 children included in the study, 59 (29.5%) reattended for a follow-up chest radiograph. The follow-up film provided useful additional information in 7 (12%) of the 59 children. In two children rib fractures were noted only on the follow-up chest radiograph. In a further two patients additional rib fractures were noted. Additional dating information was obtained for two patients. For one child both additional fractures and dating information were noted. CONCLUSIONS: The follow-up chest radiograph provides useful information in children with suspected NAI and it is recommended that it should be included routinely in the imaging investigations of these children.

Child Abuse↗
PubMed2000

Blunt chest trauma in the elderly patient: how cardiopulmonary disease affects outcome.

Blunt trauma patients with rib fractures have significant risk of morbidity and mortality. The risk of complications increases with age and cardiopulmonary disease. We reviewed our experience at a community hospital Level II trauma center over a 5-year period. A review of the trauma registry revealed 62 patients over the age of 65 with multiple rib fractures and no associated injuries. Thirty-one patients with cardiopulmonary disease (CPD+) were compared with 31 patients without cardiopulmonary disease (CPD-). Charts were reviewed for morbidity, mortality, the need to upgrade level of care (readmission to the hospital or intensive care unit), and length of hospitalization. Complications occurred in 17 of 31 CPD+ patients and in four of 31 CPD- patients (P < 0.001). The only three deaths were in CPD+ patients. Ten CPD+ patients and four CPD- patients required an upgrade in the level of care (P < 0.05). The CPD+ patients had longer hospitalization than the CPD- patients: 8.5 versus 4.3 days (P < 0.05). We conclude that elderly patients with multiple rib fractures and cardiopulmonary disease are at significant risk for complications that result in readmission to the hospital and intensive care unit and prolonged length of hospitalization. Admission to the intensive care unit with attention to cardiac and pulmonary status upon transfer to the ward is warranted.

Age Factors↗
PubMed1996

Pneumothoraces secondary to blunt abdominal trauma: aids to plain film radiographic diagnosis and relationship to solid organ injury.

The objective was to identify subtle clues to the diagnosis of small pneumothoraces (PTX) in victims of blunt abdominal trauma (BAT) and to determine the relationship of PTX to solid organ injury. We retrospectively reviewed 1374 abdominal CT scans performed after BAT and assessed each for the presence of PTX and solid organ injury. In patients positive for PTX, the interpretation of the initial portable chest radiograph (PCXR) was noted and the film subsequently reviewed for subtle signs of PTX, presence of subcutaneous emphysema (SQE), and rib fractures. The initial PCXR of 50 consecutive blunt trauma admissions without CT evidence of PTX were reviewed for comparison. Eighty-four patients displayed PTX on CT, of whom 52 had initial PCXR available for review. Eight of 52 (15%) radiographs were initially interpreted as positive for PTX, whereas in our retrospective analysis, an additional 8 were discovered (total 31%). Of these, 23 of 52 (44%) had rib fractures, and 13 of 52 (25%) had SQE. Sixty-four of 1290 patients (5%) without CT findings of PTX sustained solid organ injury, whereas 15 of 84 (18%) with PTX had solid organ injury (significant by chi square analysis, P < 0.001). Although a large number of trauma-related pneumothoraces seen on CT will not be seen on admission PCXR, the search for rib fractures and SQE will enhance the sensitivity of detection. This has prognostic value, as the presence of PTX is related to a significantly increased incidence of abdominal solid organ injury.

Abdominal Injuries↗
PubMed2005

Predictive factors of liver injury in blunt multiple trauma.

INTRODUCTION: This study was conducted to clarify whether injuries that are likely to be revealed by initial clinical and conventional radiological examination at the trauma bay (e.g., right-side rib fractures) meaningfully contribute to the prior probability of accompanying hepatic lesions in multiple injured patients. MATERIAL AND METHODS: Fifty-five subjects (sampled from a cohort of 218 patients) with liver injury fulfilling the definition of polytrauma were compared with 55 polytrauma patients without liver injury. Controls were individually matched for age, gender, and Injury Severity Scores. Whole-body, helical, contrast-enhanced computed tomography was applied to all participants. We modeled independent predictors of liver involvement by conditional logistic and random-effects regression analysis. RESULTS: In the present sample, the prevalence of hepatic injury was 25.2%. Neither the injury mechanism (car crash, pedestrian accident, fall from height) nor certain accompanying injuries (right-side serial rib fractures, lumbar spine fractures) predicted the presence of hepatic injury. Liver injury was particularly unlikely in bikers [odds ratio (OR) 0.78, 95% confidence interval (CI) 0.59-1.03] and patients with left-side rib fractures (OR 0.80, 95% CI 0.66-0.98). DISCUSSION: There are no index injuries that will reliably indicate the presence of liver involvement in multiple trauma cases. Also, the absence of these injuries cannot rule out liver damage.

Adult↗