Unlabelled: The Macklin effect plays an essential role in the pathogenesis of spontaneous pneumomediastinum. It is the process by which is there is a blunt alveolar rupture that leads to air dissection through the bronchopulmonary sheaths and spreads into the mediastinum. Theoretically, marijuana use can cause spontaneous pneumomediastinum indirectly by inducing rigorous vomiting. We report a case of a healthy 22-year-old male with a history of recent marijuana use who presented with pneumomediastinum and rhabdomyolysis concurrently. After a thorough investigation, we concluded that this patient had spontaneous pneumomediastinum due to the Macklin effect from severe vomiting.
Learning Points: Spontaneous pneumomediastinum is the presence of air in the mediastinum that occurs from an unclear aetiology.Marijuana use can trigger severe vomiting in patients, leading to spontaneous pneumomediastinum through the Macklin effect.
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http://dx.doi.org/10.12890/2024_004853 | DOI Listing |
Cureus
December 2024
Critical Care Medicine, Coordinación de Terapia Intensiva y Hemodinamia de Hospitales de 2º Nivel Instituto Mexicano del Seguro Social Bienestar, Mexico City, MEX.
Hamman's syndrome is characterized by spontaneous pneumomediastinum triggered by Valsalva maneuvers and is an uncommon complication during labor and the postpartum period. It is typically benign and managed conservatively with oxygen therapy and analgesia. We present the clinical case of a 21-year-old primigravida who developed spontaneous pneumomediastinum during labor, manifesting with subcutaneous emphysema and dyspnea.
View Article and Find Full Text PDFCureus
December 2024
Pulmonology, Ibn Rochd University Hospital, Casablanca, MAR.
Hamman syndrome, or spontaneous pneumomediastinum, is a rare condition characterized by the presence of free air in the mediastinum, often triggered by increased intrathoracic pressure from vomiting, coughing, or intense physical exertion. Its association with diabetic ketoacidosis (DKA) is extremely uncommon. We report a case of an 18-year-old male with poorly controlled type 1 diabetes who developed DKA complicated by pneumomediastinum, subcutaneous emphysema, and a small pneumothorax.
View Article and Find Full Text PDFRev Mal Respir
January 2025
Service de médecine interne, hôpital Habib Thameur, faculté de médecine de Tunis, université de Tunis El Manar, Tunis, Tunisie.
Otherwise known as mediastinal emphysema, pneumomediastinum (PNM) in connective tissue diseases is a rare clinical entity. Few cases have been described in the literature. In fact, it only exceptionally complicates the evolution of connective tissue diseases.
View Article and Find Full Text PDFInt J Emerg Med
December 2024
Pediatric Intensive Care Unit, King Salman Medical City, Madinah, Saudi Arabia.
Background: Spontaneous pneumomediastinum (SPM) and subcutaneous emphysema (SE) are rare, severe, and potentially life-threatening complications associated with asthma exacerbation. Most of these conditions are benign and self-limiting. However, the overlapping symptoms between asthma exacerbation and pneumomediastinum (PM) may delay diagnosis.
View Article and Find Full Text PDFCureus
November 2024
Acute Internal Medicine, Mid and South Essex NHS Foundation Trust, Essex, GBR.
Spontaneous pneumomediastinum (SPM) is an uncommon condition caused by alveolar rupture due to increased intra-alveolar pressure resulting in air tracking along the tracheobronchial tree. While chest pain, neck pain, and dyspnea are the most commonly described symptoms, bradycardia could be an associated manifestation occasionally. In the majority of cases, pneumomediastinum is usually diagnosed on chest X-ray.
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