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Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without...
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Managing flail chest, a condition characterized by a segment of the chest wall moving independently from the rest of the thoracic cage, requires a comprehensive approach. It includes a thorough assessment of the patient's condition, a diagnostic evaluation to determine the extent of the injury, and the implementation of appropriate medical interventions tailored to the individual's needs.
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Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
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Delayed hyperbaric intervention in life-threatening decompression illness.

Michael Fm Perez1, Janet V Ongkeko Perez2, April R Serrano2

  • 1Saint Patrick's Hospital Medical Centre, SPHMC-HH, Lopez Jaena Street, Batangas City, Philippines, mikeperezmd@yahoo.com.

Diving and Hyperbaric Medicine
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Summary
This summary is machine-generated.

Delayed hyperbaric oxygen therapy can lead to functional recovery after arterial gas embolism. This case study shows a diver

Keywords:
Case reportCerebral arterial gas embolism (CAGE)Hyperbaric oxygen therapyIntensive care medicinePersistent (patent) foramen ovaleRebreathers/closed circuit

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Area of Science:

  • Diving Medicine
  • Hyperbaric Medicine
  • Neurology

Background:

  • Arterial gas embolism (AGE) is a severe complication of scuba diving.
  • Prompt treatment is crucial for favorable outcomes, but delayed intervention is sometimes necessary.

Observation:

  • A 51-year-old male rebreather diver experienced loss of consciousness and cardiovascular collapse after a 30-meter dive.
  • Recompression treatment was delayed for six days due to circumstances at a remote dive site.
  • The patient remained comatose and required mechanical ventilation during the delay.

Findings:

  • Despite the significant delay, aggressive hyperbaric oxygen therapy over several days resulted in a functional recovery.
  • One year post-injury, the patient leads a functional life with residual deficits including tinnitus, hearing impairment, and mild speech problems.

Implications:

  • This case suggests that a prolonged delay in treatment for arterial gas embolism does not preclude a significant recovery with hyperbaric oxygen therapy.
  • It highlights the potential benefits of aggressive hyperbaric treatment even in severe, delayed cases of AGE.
  • Further research into optimal treatment protocols for delayed AGE is warranted.