J Med Cases

Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access

Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc

Journal website https://www.journalmc.org

Case Report

Volume 15, Number 11, November 2024, pages 335-340

Unmasking the Rarity: A Case Report on Platypnea-Orthodeoxia Syndrome With Successful Resolution Through Patent Foramen Ovale Closure

Figures

Figure 1. Echo with bubble studies showing bubbles across the patent foramen ovale (white arrow). LA: left atrium; LV: left ventricle; RA: right atrium; RV: right ventricle.

Figure 2. Fluoroscopy showing GORE CARDIOFORM septal occluder in place (white arrow).

Figure 3. Echo showing closure device in the atrial septum.

Table

**Table 1.** Laboratory Results
Investigations	Result	Normal range
BUN: blood urea nitrogen; WBC: white blood cell.
Sodium	134	135 - 145 mEq/L
Potassium	4	3.5 - 5.5 mmol/L
Chloride	98	96 - 106 mEq/L
Bicarbonate	27.7	22 - 29 mEq/L
BUN	14.8	6 - 24 mg/dL
Hemoglobin	8.7	12 - 16 g/dL
WBCs	6.22 × 10⁹/L	4.5 - 11.0 × 10⁹/L
Platelets	364 × 10³/µL	150 - 450 × 10³/µL
Glucose	98	70 - 100 mmol/L
Creatinine	0.7	0.7 - 1.3 mg/dL