# Right Ventricular Hypertrophy Detected by Echocardiography in Patients with Newly Diagnosed Obstructive Sleep Apnea (4)

Results
Fifty patients were enrolled in our study. Twenty-eight (56 percent) had OSA and 32 (64 percent) had RVH. Of the 28 patients who had OSA, 23 were male and 5 were female; ages averaged 51.3 years (range, 14 to 73 years). Of the 32 patients who had RVH, 24 were male and 8 were female; ages averaged 54.6 years (range, 29 to 73 years).
Table 1 illustrates the data of the RVH group. Four patients were excluded because they had biventricular hypertrophy. Three of these four (75 percent) had hypertension. Seventeen of the 28 remaining patients (61 percent) had OSA. Of the remaining 11 patients, the RVH can be explained in eight. Two patients had significant pulmonary disease (FEV/FVC = 55 to 60 percent), two patients had hypertension and four patients were obese. There were three patients with unexplained RVH.
Table 1 shows that the patients with apnea had an average age of 49.6 ±14.7 years and the patients without apnea had an average age of 60.0±7.6 years. The average BSA for those patients with apnea was 2.19 ±0.26 sq m and those without apnea had a BSA of 1.94 ±0.31 sq m. The average oxygen saturation for the length of the polysomnographic study for those patients with apnea was 89.06 ±8.68 percent and those without apnea had an average of 95.27 ±2.33 percent.

Table 1—Statistical Analysis of Right Ventricular Hypertrophy Population (With and Without Apnea)

 Variable Sample SampleMean SampleStandardDeviation Students t Test/ p Value Age (yr) – With apnea (n= 17) Without apnea* (n = 11) 49.5960.00 14.737.60 0.02 Height (inches) ’ With apnea (n = 17) Without apnea. (n = 11) 67.5366.09 2.924.46 0.36 Weight (pounds) With apnea (n= 17) Without apnea (n = 11) 237.82189.54 63.0754.71 0.04 BSA (sq m) With apnea (n = 17) Without apnea I (n = 11) 2.191.94 0.260.31 0.04 Average oxygen saturation for the study (%) With apnea (n = 17) Without apnea I (n = 11) 89.0695.27 8.682.33 0.01 Lowest oxygen saturation (%) Withapnea(n = 17) Without apnea. (n = 11) 69.0093.40 17.234.60 0.001