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PubMed1987

Use of the Heimlich valve in a compact autotransfusion device.

A compact device which evacuates blood from a hemothorax and facilitates rapid autotransfusion was evaluated in dogs. Experimental hemothorax was established surgically by incising the internal mammary artery through a thoracotomy with the animals under general anesthesia. Postoperatively the blood was drained by one of two methods. In the Heimlich valve group (n = 5), blood was drained by a chest tube through a one-way flutter valve into a collapsible plastic bag. In the Sorenson group (n = 5), blood was drained by a chest tube into the Sorenson Autotransfusion System. Blood from these two groups was then autotransfused. In the control group (n = 5), the drained blood was not autotransfused. Results showed no statistical difference between the two autotransfusion groups in the volume of blood collected, circulating fibrinogen levels, platelet counts, stroma-free hemoglobin levels, prothrombin time, or 51Cr-labeled RBC survival. There was a significant drop in the circulating platelet count, which returned to normal by 24 hours, in both groups of dogs which were autotransfused. We conclude that autotransfusion of blood collected by a compact device which utilizes a Heimlich valve and requires no suction is similar to using the Sorenson Autotransfusion System. It may be safe to use the Heimlich valve to collect blood for autotransfusion in clinical situations, where its qualities of simplicity, portability and a minimum requirement for storage space are desirable.

Animals↗
PubMed2002

Periaortic hematoma on abdominal computed tomographic scanning as an indicator of thoracic aortic rupture in blunt trauma.

BACKGROUND: In our institution, we have noted an association between periaortic hematomas (PH) present on abdominal computed tomographic (CT) scans and patients with thoracic aortic rupture (TAR) in blunt trauma. This 5-year retrospective study determined the sensitivity and specificity of PH and left hemothorax seen on abdominal CT scan as an indicator of TAR. METHODS: The trauma registry and records identified 54 blunt trauma patients who had a CT scan of the abdomen and an arch aortogram. Fourteen patients with TAR and 40 patients without TAR were selected for analysis. A digital photograph of an upper cut of the abdominal CT scan for each patient was examined by radiology staff for the presence or absence of PH and left hemothorax. RESULTS: The sensitivity, specificity, positive predictive value, and negative predictive value of PH as a predictor of TAR were 88%, 99%, 97%, and 96%, respectively. CONCLUSION: The finding of PH on CT scan of the abdomen in blunt trauma patients should alert the clinician to the high likelihood of thoracic aortic injury.

Aorta, Thoracic↗
PubMed1994

Comparison of the effectiveness of tetracycline and minocycline as pleural sclerosing agents in rabbits.

Parenteral tetracycline, one of the most commonly used agents for producing pleurodesis, is no longer available because of stricter regulations governing the manufacturing process. The objective of this project was to determine whether minocycline, a tetracycline derivative, is an effective sclerosant in an experimental model in rabbits. We also studied the relationship of the dose and the volume injected to the degree of pleurodesis. The following medications were instilled intrapleurally in anesthetized male rabbits: tetracycline, 35 mg/kg; or minocycline, 4, 7, 10, or 20 mg/kg, diluted to a total volume of 1 or 2 ml of bacteriostatic saline solution; or minocycline, 40 mg/kg, diluted to a total volume of 2 ml of the solution. Twenty-eight days after the instillation, the animals were killed. The pleural spaces were assessed grossly for evidence of pleurodesis and microscopically for evidence of fibrosis and inflammation. The degree of pleurodesis grossly and microscopically after the injection of 7, 10, 20, or 40 mg/kg of minocycline was comparable to that after the injection of 35 mg/kg of tetracycline, while the dose of 4 mg/kg was less effective. In the animals who received the higher doses of minocycline intrapleurally (ie > or = 20 mg/kg), there was an excess mortality both early (chi 2 = 3.61, 0.05 < p < 0.10) and late (chi 2 = 11.0, p < 0.005) which appeared to be related to the development of hemothorax. The intrapleural injection of the tetracycline derivatives was significantly (p < 0.05) more effective when the total volume of the solution was 2 ml rather than 1 ml. The present study demonstrates that minocycline is an effective agent for producing pleurodesis in the rabbit. Minocycline given intrapleurally at doses of 7 mg/kg or above is comparable to tetracycline, 35 mg/kg. Higher doses of minocycline (> or = 20 mg/kg) produce a high mortality that seems to be related to hemothorax. Since, in humans, a large experience confirms only 20 mg/kg of tetracycline is needed to produce adequate pleurodesis safely, we recommend a dose of 4 mg/kg of minocycline for the production of pleurodesis.

Animals↗
PubMed1990

Percutaneous placement of Hickman catheters: comparison of sonographically guided and blind techniques.

We studied the value of sonographically guided puncture of the subclavian vein for placement of indwelling right atrial and permanent subcutaneously tunneled catheters (Hickman) for long-term venous access. The commonly used blind puncture is associated with complications such as pneumothorax, arterial puncture, and hemothorax. The results and complications of 40 sonographically guided punctures and fluoroscopically controlled catheterizations of the subclavian vein (group 1, 31 patients) performed in the radiology department were compared with those of 40 blind percutaneous punctures and fluoroscopically controlled catheterizations (group 2, 29 patients) performed in the operating room. The patients were selected consecutively. The groups were comparable in age, sex, and indication for catheter placement; administration of chemotherapy for hematologic malignancies was the major indication (group 1, 84%; group 2, 83%). All punctures in group 1 were successful; group 2 had two failures (5%). Puncture-related complications occurred significantly more in group 2 (10%) than in group 1 (0%) (p less than .05). These complications were pneumothorax in three cases and hemothorax in one. Complications not related to the puncture technique were prolonged bleeding at the entrance site (groups 1 and 2, two cases each), local infection (group 1, one case), thrombosis (group 1, three cases; group 2, two), catheter sepsis (group 1, 10 cases; group 2, 14), catheter occlusion (group 2, three cases), and catheter migration (groups 1 and 2, two cases each). We conclude that sonographically guided puncture increases the success rate and significantly decreases the puncture-related complications of percutaneous placement of Hickman catheters.

Adolescent↗
PubMed2000

Ruptured pulmonary infarction: a rare, fatal complication of thromboembolic disease.

We describe 2 men, ages 69 and 49 years, who experienced fatal rupture of pulmonary infarcts. Both patients had documented prior thromboembolic events and subsequently had abrupt deterioration in cardiorespiratory function. Autopsies showed massive unilateral hemothorax in both patients. Rupture of a pulmonary infarct may occur spontaneously or iatrogenically due to aggressive anticoagulation. This may be difficult to distinguish from secondary hemothorax with an intact pleura, but rupture typically has a considerably more rapid clinical evolution. Treatment should include immediate withdrawal of thrombolytic or anticoagulant medications and evacuation of the pleural space. Surgical intervention can be considered, although the utility of that approach must await prospective trials.

Aged↗
PubMed2002

[Diagnostic value of pleural fluid cytologic examination].

The study included 200 patients with pleural effusion. Pleural effusions were transudative in 48 (24%) and exudative in 152 (76%) of cases. Congestive cardiac failure (14.5%), nephrotic syndrome (5.5%), and liver cirrhosis (2.5%) were the most common etiological diagnoses of transudate cases. Malignant effusion (16.5%), pneumonia (13%), pleural empyema (9%), tuberculosis (6%), and pulmonary embolism (5.5%) were the most common etiological diagnoses of exudative cases. Thirty-two (16%) cases of exudative pleural effusions were of undertermined etiology. Polymorphonuclear leucocytes predominated in 48 patients with exudative pleural effusions. The most common etiological diagnoses were pneumonia (41.67%), pleural empyema (39.59%) and pulmonary embolism (10.42%). Lymphocytes in pleural fluid were predominant in 63 patients, with malignant (6.34%), tuberculous pleurisy (19.02%), pulmonary embolism (6.34%), trauma (6.34%), and (46.11%) cases in patients with pleural exudate undertermined etiology. Eosinophyls were predominant in 16 (8%) patients with exudative pleural effusions. The most common etiology of eosinophilic pleural fluid were pneumonia (37.5%), malignant pleural effusion (25%), pulmonary embolism (12.5%), pyopneumothorax (6.25%) and trauma 6.25%. From 16 patients with eosinophilic pleural exudate, in 31% cases air, in 12.5% blood in pleural fluid were determined and in 12.5% cases previous pleural puncture was performed. Pleural fluid eosinophilia is most commonly associated with the presence of air or blood in the pleural fluid (correalation index 0.82). Malignant pleural effusions were determined in 33 patients. Malignant cells in pleural fluid were identified in 25 cases. The diagnostic sensitivity of pleural fluid cytology for malignant pleural effusions were 76%. Hemoragic pleuritis was determined in 18 and hemothorax in 4 patients. Etiology of hemothorax were trauma (75%) and coaguliopathia (25%). Most common etiological diagnoses of hemoragic pleuritis were neoplasia (33.3%), pulmonary embolism (16.65%), trauma (16.65%), pneumonia (11.11%), and congestive cardiac failure (11.11%). Diagnostic sensitivity and specifity of hemoragic pleuritis is low, 58% and 45% respectively.

Eosinophils↗
PubMed1992

Role of three hour roentgenogram of the chest in penetrating and nonpenetrating injuries of the chest.

The current study examined whether a three hour roentgenogram of the chest was as reliable as the six hour roentgenogram of the chest in detecting delayed complications (that is, pneumothorax and hemothorax) of penetrating and nonpenetrating trauma to the chest. The 285 patients in the study were placed into three groups: those stabbed in either the chest or back; those sustaining multiple fractures of the ribs, and those with gunshot wounds to the chest or back. All the patients selected for study by three and six hour films of the chest were asymptomatic on admission and no pneumothorax or hemothorax was seen on initial anteroposterior and lateral roentgenograms of the chest. None of the patients included in the study required immediate operation. Twelve patients (4 percent) had delayed pneumothoraces on the three hour roentgenogram of the chest. Nine of these 12 (75 percent) required thoracostomy tube drainage, while the remaining three patients were managed with needle aspiration. No additional patients had complications on the six hour roentgenogram of the chest. Computed tomographic (CT) scan discovered five additional patients (2 percent) with pneumothoraces not visualized by the three or six hour films. Seventeen patients (6 percent) had delayed pneumothoraces despite negative admission roentgenograms of the chest and lack of symptoms. Twelve of the 17 (71 percent) were discovered on three hour roentgenogram of the chest, while an additional five of 17 (29 percent) were only seen by CT scan. Three hour roentgenograms of the chest are as reliable as six hour roentgenograms of the chest in visualizing the development of delayed complications of penetrating and nonpenetrating thoracic trauma. The CT scan is more effective than the roentgenogram of the chest in visualizing small pneumothoraces, but its use as a screening tool for detection of delayed complications of trauma to the chest pneumothoraces is probably cost-prohibitive.

Adolescent↗
PubMed2004

Video-assisted thoracoscopy in thoracic injury: early or delayed indication?

The aim of this study was to evaluate the diagnostic role and therapeutic effectiveness of videothoracoscopy in chest trauma. Between 1st January 1993 and 30th September 2003, 112 traumatized patients underwent a videothoracoscopy. The origin of trauma was different: 60 road accidents, 42 accidental falls, 7 knife wounds and 3 firearm wounds. Seventy-six patients presented hemothorax, 21 hemopneumothorax, 10 suspected diaphragmatic injury and 5 pericardium effusion. All patients were hemodynamically stable and conscious. In suspected diaphragmatic rupture patients, videothoracoscopy confirmed the presence of 4 lesions with diameter from 7 to 10cm. The etiopathogenetic causes in the other clinical patterns were: 20 lung lacerations, 17 apical adhesion lacerations, 11 diaphragmatic lesions, 16 wall bleedings and 38 vessel lesions. Ninety patients (80.3%) were treated with video assisted thoracic surgery. The remaining procedures were : 17 drainage tube insertions, 4 thoracotomies and 1 laparotomy. Videothoracoscopy made the use of the primary intention drainage tube obsolete in stable traumatized patients with hemothorax or hemopneumothorax. It is a safe technique that allows the diagnostic and surgical management of the lesions.

Accidental Falls↗
PubMed1991

Azygos vein laceration due to blunt trauma.

The azygos vein ascends along the thoracic spine through the mediastinum and drains into the superior vena cava at the level of the fourth thoracic vertebra. Fracture-dislocation of the mid-thoracic spine, as a result of blunt thoracic trauma, can tear the azygos vein. Four such fatal cases (three motor vehicle accidents and one fall) were studied, only one of which was recognized prior to death. The vein can also be torn, in the absence of skeletal injuries, by horizontal acceleration/deceleration forces. The pathologist must consider azygos vein laceration as a possible cause of either hemothorax or hemomediastinum or both in a victim of a blunt chest trauma, if that individual had persistent hypotension during the few hours before death and no identifiable source of hemorrhage can be found postmortem in sites such as the heart, great vessels, lung, and chest wall. A fracture-dislocation of the thoracic spine may not necessarily be present. Azygos vein laceration seems to be an uncommon cause of hemothorax and hemomediastinum; however, this injury is probably more frequent than is implied by the few cases described in the medical literature.

Accidental Falls↗
PubMed1989

[Vascular injuries during percutaneous catheterization of the lower neck in children].

Four cases of vascular injuries of subclavian artery in children are reported after 414 percutaneous catheterization between 1980 and 1986. The first case reported is a 2 month old child with a right subclavian aneurysm after punction, witch be treated by a successful resection-anastomosis. Three others children, 12, 13, and 14 years old have been catheterized by a jugular approach for one and by a subclavian approach in the others. In this three cases the diagnosis was made by an important hemothorax requiring a drainage. In one case, the recovery was obtain only by drainage, in the two others a surgical approach was necessary with a suture of the subclavian artery in one and a ligation in the other case. The diagnosis of these vascular lesion is difficult = an hemothorax must be drained quickly and a persistent bleeding require a surgical treatment by a cervical route associated with a cleidotomy for the subclavian control. All catheterization in children must be realized by operator with a good practice and an adapted material. The jugular route must be preferred to the subclavian route in children.

Adolescent↗
PubMed1989

Prospective trial of the six hour rule in stab wounds of the chest.

Stab wounds of the chest may be associated with a spectrum of injuries ranging from the lethal to the insignificant. The management of asymptomatic patients with stab wounds of the chest is controversial. The results of previous reports have asserted that asymptomatic patients with stab wounds of the chest do not have delayed complications develop if roentgenograms of the chest taken six hours after the injury are normal. This "rule" has not been validated. A three year, prospective study of patients with stab wounds of the chest was done. Patients were excluded from the study if they had symptoms on arrival, evidence of physiologic derangement caused by intrathoracic injury, wounds near the subclavian vessels or precordial wounds. Patients with lower thoracic stab wounds were evaluated by diagnostic peritoneal lavage. If findings from lavage were negative, the patients were included in the study. One hundred and five patients met the criteria for inclusion in the study group. All of the patients were hospitalized and examined serially. All had roentgenograms of the chest performed at admission, at six hours and at 24 hours. Four patients had a pneumothorax or hemothorax develop between the time of admission and six hours of hospitalization. In the remaining 101 patients, none had a pneumothorax or hemothorax between six and 24 hours. No patient asymptomatic on admission had a tension pneumothorax develop later. No patient had delayed evidence of abdominal injury. An asymptomatic patient with a stab wound of the chest that is not precordial, not in proximity to the subclavian artery and not suspected of diaphragmatic penetration should be serially examined and have a follow-up roentgenogram of the chest at six hours. If the patient remains asymptomatic and the six hour film is normal, delayed complications are rarely, if ever, encountered and the patient does not require further studies or hospitalization. The six hour rule for stab wounds of the chest is valid.

Adolescent↗
PubMed1979

The unchanged mortality of flail chest injuries.

Six hundred eighty-five patients with major blunt thoracic injuries from 1968 through 1977 were retrospectively studied. This series was compared to a similar series from 1959 through 1964. Between 1964 and 1968 a vastly improved hospital was built, laboratory support improved, pressure-controlled ventilators replaced by volume-controlled ventilators and the trauma service was reorganized. The treatment regimen for flail chest injuries during the last decade evolved from the previous early tracheostomy and prolonged ventilator support to an avoidance of tracheostomy and brief ventilator support. The overall mortality in the present series was 20% compared to 35% for the 1959--1964 series; however, improved mortality occurred only among patients with hemothorax who had one or more major concomitant extrathoracic injuries. The mortality for flail chest injuries did not improve (29.5 vs 35.0%). Mortality was unchanged for isolated flail chest injuries, isolated pneumothorax, isolated hemothorax, and for flail chest injuries, and pneumothorax in patients with concomitant major extrathoracic injuries. In both series deaths from isolated thoracic injuries were rare. It is evident that the continued high mortality for blunt thoracic trauma principally relates to concomitant extrathoracic injuries and that recent treatment innovations have not reduced the mortality of flail chest injuries.

Adolescent↗
PubMed1994

Flail chest as a marker for significant injuries.

The records of 92 patients with flail chest injury treated at a Level I trauma center were analyzed retrospectively. Associated intrathoracic injuries included pulmonary contusion (46 percent) and pneumothorax or hemothorax, or both (70 percent). The incidence of great vessel, tracheobronchial and diaphragmatic injuries was no different from that of a control population with simple rib fractures. Adult respiratory distress syndrome developed in 27 percent of patients with flail chest; 69 percent of all patients required ventilation (mean duration, 22 days). Mean length of hospital stay was 24 days. The mortality rate was 33 percent. We conclude that flail chest serves as a marker of significant intrathoracic injury, highly associated with pulmonary contusion, but even more so with pneumothorax or hemothorax. Flail chest does not seem to be a marker for great vessel, tracheobronchial, or diaphragmatic injuries. The majority of patients (more than two-thirds) will require mechanical ventilation for prolonged periods. Of paramount importance is the recognition of flail chest as a marker of high kinetic energy absorption, resulting in life-threatening thoracic as well as nonthoracic injuries.

Adult↗
PubMed1996

[Indications of rethoracotomy after esophagectomy for esophageal cancer].

Indications of rethoracotomy after esophagectomy for esophageal cancer are reviewed in this paper. Hemothorax, pneumothorax, pyothorax and chylothorax are the main causes of rethoracotomy. Complications indicating rethoracotomy are summarized as follows: 1) Hemothorax; emergency rethoracotomy is indicated in cases of bleeding through the chest drain over 100ml/hr, which is continuing over 5 hours or in cases when normal blood pressure cannot be maintained without blood transfusion. In many cases the bleeding point is the chest wall, from the branches of the intercostal artery. 2) Pneumothorax; reoperation for pneumothorax is rare. But rethoracotomy and bullectomy or closure of fustula is indicated when a large volume of air leakage and lung collapse continues over a week. 3) Pyothorax; old pyothorax with bronchial fistula is treated by closure of fistula and plombage with omentum or muscle flap. 4) Chylothorax; chylothorax is not a frequent complication of esophageal surgery but when it occurs reoperation is not rare. In cases with 1,500ml/day or more of chyle drainage for over 5 days under fasting with intravenous hyperalimentation, rethoracotomy and ligation of thoracic duct is indicated.

Chylothorax↗
PubMed1997

Echo-controlled endomyocardial biopsy in orthotopic heart transplantation with bicaval anastomosis.

Starting in January 1995, we performed heart transplantation, randomly using standard and bicaval techniques. In the latter technique, the anatomy of the right atrium is maintained, since the venae cavae are anastomosed. In 38 patients who received heart transplantation with bicaval anastomosis, 339 endomyocardial biopsies (EMB) were performed. EMB was done under echocardiographic control in 309 cases, whereas the remaining 30 were done under fluoroscopy. When EMB was echo-guided there was one major complication, namely right hemothorax in a 29-year-old man, who had had heart transplantation one week before, and this required surgical exploration. Other complications, correlated to venipuncture were: left hemothorax in a 65-year-old woman determined by arterial puncture, treated by means of chest tube drainage; pneumothorax (1 case). Echocardiographic guidance during EMB allows a better choice of biopsy site, reduces the risk of damaging cardiac structures and allows immediate monitoring of heart performance. Moreover the risk of X-ray exposure to both patient and operators is reduced. In any case, because the superior vena cava suture line is not visualized by two-dimensional echocardiography, if the bioptome cannot be introduced easily through superior vena cava, fluoroscopic control should be immediately applied, particularly in the early post-operative period when cicatrization is not complete.

Adult↗
PubMed2001

Active chest compression-decompression for cardiopulmonary resuscitation.

BACKGROUND: Active compression-decompression cardiopulmonary resuscitation (ACD CPR) uses a hand-held suction device, applied mid sternum, to compress the chest then actively decompress the chest after each compression. Randomised controlled trials on use of active compression decompression cardiopulmonary resuscitation have results which are discordant. OBJECTIVES: To determine clinical effects and safety of active compression-decompression cardiopulmonary resuscitation compared with standard manual cardiopulmonary resuscitation (STR). SEARCH STRATEGY: We searched the Cochrane Heart Group Specialised register (April 2001), the Cochrane library, MEDLINE and EMBASE. We checked the reference list of retrieved articles and contacted enterprises manufacturing the active decompression devices. SELECTION CRITERIA: All randomized or quasi-randomized studies comparing active compression-decompression cardiopulmonary resuscitation compared with standard manual cardiopulmonary resuscitation in adults with a cardiac arrest who received cardiopulmonary resuscitation by a trained medical or paramedical team. DATA COLLECTION AND ANALYSIS: Data were independently extracted. All data were analysed on an intention-to-treat basis. The authors of the primary studies were contacted for more information when needed. Studies were cumulated, if appropriate, and pooled relative risk (RR) estimated. Subgroup analysis according to setting (out of hospital or in hospital) and attending team composition (with physician or paramedic only) were predefined. MAIN RESULTS: Twelve trials were included: 10 were in out-of-hospital settings, one set in-hospital only and one had both in-hospital and out-of-hospital components. Allocation concealment was adequate in 4 trials. The two in-hospital studies were very different in quality (A and C) and size (773 and 53 patients). Both found no differences between ACD CPR and STR in any outcome. Trials conducted in out-of-hospital settings cumulated 4162 patients. There were no differences between ACD CPR and STR for mortality either immediately (RR 0.98 [95% CI 0.94 - 1.03]) or at hospital discharge (RR 0.99 [95% CI 0.98 - 1.01]). The pooled RR of neurological impairment, any severity, was 1.71 [95% CI 0.90 - 3.25], with a non-significant trend to more frequent severe neurological damage in survivors of ACD CPR (RR 3.11 [95% CI 0.98 - 9.83]). However, assessment of neurological outcome was limited and there were few patients with neurological damage. There was no difference between ACD CPR and STR with regard complications such as rib or sternal fractures, pneumothorax or hemothorax (RR 1.09 [95% CI 0.86 - 1.38]). Skin trauma and ecchymosis were more frequent with ACD CPR. REVIEWER'S CONCLUSIONS: Active chest compression-decompression in patients with cardiac arrest is not associated with clear benefit.

Adult↗
PubMed1999

Traumatic cardiac herniation diagnosed by echocardiography and chest CT scanning: report of a case.

A 62-year-old man who had suffered fractures of the left chest wall and hemothorax 1 year earlier was admitted to our hospital with multiple injuries as a result of a traffic accident. Chest drainage was immediately performed under the diagnosis of left hemothorax followed by immobilization of fractures of the femur and radius. On the second day after admission, he suddenly developed severe chest pain and dyspnea after sitting up in bed. Echocardiography and chest computed tomography (CT) showed herniation of the left ventricle into the left thoracic cavity, whereby a diagnosis of cardiac herniation due to rupture of the pericardium was made and an emergency surgical repair was successfully performed. Only eight cases of patients surviving after traumatic cardiac herniation have been reported in Japan; however, this is the first in which a preoperative diagnosis was made by echocardiography and chest CT scanning prior to surgical repair.

Accidents, Traffic↗
PubMed1997

[Right-sided diaphragmatic rupture with intrathoracic displacement of the entire right lobe of the liver].

A case of rupture of the right hemidiaphragm resulting from blunt trauma with complete intrathoracic dislocation of the right hepatic lobe in a multiple trauma patient is presented. After a primary chest X-ray study had been interpreted as showing right-sided hemothorax, the thoracic drainage tube was accidentally placed into the liver. CT revealed a diagnosis of diaphragmatic rupture with intrathoracic liver dislocation. The liver was replaced and the extended dorsal diaphragmatic rupture was closed primarily via an abdominal approach. Problems of diagnosis and operative procedure in rare cases of fresh right-sided blunt traumatic diaphragmatic ruptures are discussed. CT may be helpful in the differential diagnosis of pulmonary contusions, hemothorax and diaphragmatic disruptions with intrathoracic herniation of intra-abdominal organs.

Adult↗