Pulmonary barotrauma is a kind of disease caused by the injury of lung tissue or blood vessel when the gas pressure of lung is too high or too lower than the external pressure of the body, which causes the air to enter the blood vessel and adjacent tissue. It could be happened in the escape of the divers with the light diving equipment or the sailors from submarine. Generally, the decompression chamber was used to treating the disease, and the minimum air pressure of 0.5 MPa recompression therapeutic schedule was used to selecting. In November 2019, a patient with pulmonary barotrauma combined with cerebral arterial gas embolism caused by improper underwater escape with light diving equipment was admitted to the General Hospital of Eastern War Zone. He was treated with 0.12 MPa oxygen inhalation recompression scheme in the oxygen chamber pressurized with air. 7 days later, the patient recovered and discharged.
Barotrauma/complications* ; Decompression Sickness/complications* ; Diving/adverse effects* ; Embolism, Air/etiology* ; Humans ; Lung Injury ; Male

Traumatic subcutaneous emphysema, which is the infiltration of air into subcutaneous tissues due to trauma, is caused by various factors such as chest and/or abdominal trauma, facial fractures, and barotrauma caused by mechanical ventilation. In this case report, a 32-year-old woman developed traumatic subcutaneous emphysema after undergoing abdominal liposuction at a local clinic. She was subsequently admitted to Busan Paik Hospital, and with early diagnosis and conservative treatment, she was discharged on the seventh day of hospitalization with no complications. However, because traumatic subcutaneous emphysema may accompany other injuries for various reasons, radiological examination and various tests should be performed to prevent serious complications and sequelae.
Adult ; Barotrauma ; Busan ; Early Diagnosis ; Female ; Hospitalization ; Humans ; Lipectomy ; Respiration, Artificial ; Subcutaneous Emphysema ; Subcutaneous Tissue ; Thorax

We report our experience with a case of stomach perforation after accidental ingestion of liquid nitrogen. A 13-year-old boy ate a snack at an amusement park and began to complain of sudden onset of severe abdominal pain with shortness of breath. It was determined that the snack he had ingested had been cooled with liquid nitrogen. A computed tomography scan of the abdomen and a chest X-ray showed a large volume of pneumoperitoneum. During surgery, a 4-cm perforation of the angularis incisura of the stomach was identified. Primary repair and omentopexy was performed. The patient was discharged without postoperative complications.
Abdomen ; Abdominal Pain ; Adolescent ; Barotrauma ; Dyspnea ; Eating ; Humans ; Male ; Nitrogen* ; Pneumoperitoneum ; Postoperative Complications ; Snacks* ; Stomach* ; Thorax

ObjectiveMechanical ventilation (MV) has long been used as a life-sustaining approach for several decades. However, researchers realized that MV not only brings benefits to patients but also cause lung injury if used improperly, which is termed as ventilator-induced lung injury (VILI). This review aimed to discuss the pathogenesis of VILI and the underlying molecular mechanisms.

Data SourcesThis review was based on articles in the PubMed database up to December 2017 using the following keywords: "ventilator-induced lung injury", "pathogenesis", "mechanism", and "biotrauma".

Study SelectionOriginal articles and reviews pertaining to mechanisms of VILI were included and reviewed.

ResultsThe pathogenesis of VILI was defined gradually, from traditional pathological mechanisms (barotrauma, volutrauma, and atelectrauma) to biotrauma. High airway pressure and transpulmonary pressure or cyclic opening and collapse of alveoli were thought to be the mechanisms of barotraumas, volutrauma, and atelectrauma. In the past two decades, accumulating evidence have addressed the importance of biotrauma during VILI, the molecular mechanism underlying biotrauma included but not limited to proinflammatory cytokines release, reactive oxygen species production, complement activation as well as mechanotransduction.

ConclusionsBarotrauma, volutrauma, atelectrauma, and biotrauma contribute to VILI, and the molecular mechanisms are being clarified gradually. More studies are warranted to figure out how to minimize lung injury induced by MV.

Animals ; Barotrauma ; metabolism ; Humans ; Reactive Oxygen Species ; metabolism ; Ventilator-Induced Lung Injury ; metabolism ; Wounds and Injuries ; metabolism

No abstract available.
Positive-Pressure Respiration, Intrinsic ; Airway Resistance ; Bronchitis, Chronic ; Lung Compliance ; Vena Cava, Inferior ; Work of Breathing ; Heart Ventricles ; Blood Pressure ; Pulmonary Disease, Chronic Obstructive ; Lung ; Respiratory Muscles ; Pulmonary Emphysema ; Emphysema ; Pneumonia ; Cardiac Output ; Lung Transplantation ; Intensive Care Units ; Positive-Pressure Respiration ; Barotrauma ; Hypotension ; Korea

No abstract available.
Positive-Pressure Respiration, Intrinsic ; Airway Resistance ; Bronchitis, Chronic ; Lung Compliance ; Vena Cava, Inferior ; Work of Breathing ; Heart Ventricles ; Blood Pressure ; Pulmonary Disease, Chronic Obstructive ; Lung ; Respiratory Muscles ; Pulmonary Emphysema ; Emphysema ; Pneumonia ; Cardiac Output ; Lung Transplantation ; Intensive Care Units ; Positive-Pressure Respiration ; Barotrauma ; Hypotension ; Korea

Perilymphatic fistula (PLF) is an uncommon disease characterized by abnormal leakage of the perilymph from the inner ear into the middle ear. The symptoms of PLF include sudden-onset hearing loss, tinnitus, ear fullness, and vertigo resulting from inner-ear trauma, stapedial surgery or barotrauma such as valsalva, and nose blowing. As nystagmus can be induced by the affected-ear in down position, benign positional paroxysmal vertigo (BPPV) should be considered for differential diagnosis. About 40-50% of PLF patients have experienced spontaneous healing, but surgical repair should be considered when the hearing symptom and dizziness are not alleviated or are aggravated within a few days. Reported herein, with a review of the relevant literature, is a case of PLF initially misdiagnosed as BPPV but where successful fistula repair was finally achieved.
Barotrauma ; Diagnosis, Differential ; Dizziness ; Ear ; Ear, Inner ; Ear, Middle ; Fistula* ; Hearing ; Hearing Loss ; Humans ; Nose ; Perilymph ; Tinnitus ; Vertigo*

Bronchial defects in neonates are known to occur very rarely as a complication of mechanical ventilation or intubation. This causes persistent air leakage that may form massive pneumomediastinum or pneumothorax, leading to cardiac tamponade or cardiorespiratory deterioration. Early diagnosis and treatment of bronchial defects are essential, as they can be accompanied by underlying severe lung parenchymal diseases, especially in preterm infants. We encountered an extremely low birth weight infant with an air cyst cavity in the posterior mediastinum that displaced the heart anteriorly, thereby causing cardiopulmonary deterioration. During exploratory-thoracotomy, after division of the air cyst wall (mediastinal pleura), we found a small bronchial defect in the posterior side of the right main bronchus. The patient had shown respiratory distress syndrome at birth, and she was managed by constant low positive pressure ventilation using a T-piece resuscitator after gentle intubation. As the peak inspiratory pressure was maintained low throughout and because intubation was successful at the first attempt without any difficulty, we think that the cause of the defect was not barotrauma or airway injury during intubation. The fact that the margin of the defect was very clear also suggested a congenital origin. To our knowledge, this is the first case of congenital bronchial defect in English literature.
Barotrauma ; Bronchi ; Cardiac Tamponade ; Early Diagnosis ; Heart ; Humans ; Infant, Extremely Low Birth Weight ; Infant, Newborn ; Infant, Premature ; Intubation ; Lung ; Mediastinal Emphysema* ; Mediastinum ; Parturition ; Pneumothorax ; Positive-Pressure Respiration ; Respiration, Artificial

A 36-year-old female patient with aplastic anemia developed massive hemoptysis and was placed on ventilator support. However, airway obstruction by blood clots triggered desaturation and ventilator malfunction. Manual ventilation was initiated to improve oxy-genation, and emergency flexible bronchoscopy was performed to clear the airway. Nevertheless, the patient developed extensive subcutaneous emphysema, pneumothorax, and pneumomediastinum.
Adult ; Airway Obstruction ; Anemia, Aplastic ; Barotrauma* ; Bronchoscopy ; Emergencies ; Female ; Hemoptysis* ; Humans ; Mediastinal Emphysema ; Pneumothorax ; Subcutaneous Emphysema ; Ventilation* ; Ventilators, Mechanical

"Cat scratch colon" is a gross finding characterized by hemorrhagic mucosal scratches on colonoscopy. It is usually associated with a normal colon and is rarely associated with collagenous colitis. In a previous report, cat scratch colon was noted in the cecum and ascending colon, but has also been observed in the distal transverse colon. The patient in this study was also diagnosed with ischemic colitis that may have played a role in the development of cat scratch colon.
Animals ; Barotrauma ; Cats ; Cecum ; Colitis ; Colitis, Collagenous ; Colitis, Ischemic* ; Colon ; Colon, Ascending ; Colon, Transverse ; Colonoscopy ; Humans ; Ischemia