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Spontaneous pneumomediastinum (Hamman's syndrome): a rare cause of postpartum chest pain.

ABSTRACT: We present a case of a 28-year-old primiparous woman with facial swelling followed by acute chest pain immediately after delivery. Chest radiograph revealed pneumomediastinum and surgical emphysema. She recovered well within 24 h of observation and conservative management. Postpartum spontaneous pneumomediastinum should be considered in the differential diagnosis of sudden-onset postpartum chest pain immediately or a few hours after delivery. It is a rare benign condition and usually resolves spontaneously without serious consequences. Chest X-ray is the single most important diagnostic test. It is important to rule out other serious and life-threatening conditions. Prolonged pushing, difficult labour and use of inhalational drugs place young primiparous women at higher risk. Recurrence is uncommon in subsequent pregnancy and management is unclear, although expectant management with epidural analgaesia to prevent recurrence in subsequent pregnancy is suggested.

SUBMITTER: Cho C

PROVIDER: S-EPMC4551020 | biostudies-other | 2015 Aug

REPOSITORIES: biostudies-other

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Project description:BackgroundPrimary spontaneous pneumomediastinum (PSPM) is a benign condition, but it can be difficult to discriminate from Boerhaave syndrome. The diagnostic difficulty is attributable to a shared constellation of history, signs, and symptoms combined with a poor understanding of the basic vital signs, labs, and diagnostic findings characterizing PSPM. These challenges likely contribute to high resource utilization for diagnosis and management of a benign process.MethodsPatients aged 18 years or older with PSPM were identified from our radiology department's database. A retrospective chart review was performed.ResultsExactly 100 patients with PSPM were identified between March 2001 and November 2019. Demographics and histories correlated well with prior studies: mean age (25 years); male predominance (70%); association with cough (34%), asthma (27%), retching or emesis (24%), tobacco abuse (11%), and physical activity (11%); acute chest pain (75%), and dyspnea (57%) as the first and second most frequent symptoms and subcutaneous emphysema (33%) as the most common sign. We provide the first robust data on presenting vital signs and laboratory values of PSPM, showing that tachycardia (31%) and leukocytosis (30%) were common. No pleural effusion was found in the 66 patients who underwent computed tomography (CT) of the chest. We provide the first data on inter-hospital transfer rates (27%). 79% of transfers were due to concern for esophageal perforation. Most patients were admitted (57%), with an average length of stay (LOS) of 2.3 days, and 25% received antibiotics.ConclusionsPSPM patients frequently present in their twenties with chest pain, subcutaneous emphysema, tachycardia, and leukocytosis. Approximately 25% have a history of retching or emesis and it is this population that must be discriminated from those with Boerhaave syndrome. An esophagram is rarely indicated and observation alone is appropriate in patients under age 40 with a known precipitating event or risk factors for PSPM (e.g., asthma, smoking) if they have no history of retching or emesis. Fever, pleural effusion, and age over 40 are rare in PSPM and should raise concern for esophageal perforation in a patient with a history of retching, emesis, or both.

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Spontaneous pneumomediastinum (Hamman's syndrome): a rare cause of postpartum chest pain.

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