{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T09:21:32Z","timestamp":1770888092425,"version":"3.50.1"},"reference-count":30,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2006,1,20]],"date-time":"2006-01-20T00:00:00Z","timestamp":1137715200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pediatric Pulmonology"],"published-print":{"date-parts":[[2006,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Apnea is a common problem that causes significant parental anxiety. The aim of this study was to describe polysomnographic findings in infants who were referred over a 4\u2010year period for an apnea and\/or cyanotic event. Our hypothesis was that most infants with apnea or cyanosis events will have normal polysomnography (PSG). In total, 320 patients younger than 2 years old were recruited sequentially and prospectively. Patients underwent a day or overnight PSG by computerized polysomnograph; 78% of studies were performed with pH probe in situ. Subjects' ages ranged from 10 days to 21 months (55% male and 84% full\u2010term babies); 55% and 74% were younger than 3 and 6 months, respectively. The average total sleep time was 473.4 min (SD, 52.3), with mean sleep efficiency of 83.5%. The distribution of sleep stages was 56.5% active, 38.5%, quiet and 5.1% indeterminate sleep. Sixty\u2010nine percent (n\u2009=\u2009220) of PSG studies were done overnight. There were significant differences in average sleep efficiency (78.1% vs. 83.3%) and REM sleep time (63.6% vs. 59.1%) between PSGs done during the day and overnight (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.05). In total, 34 patients with apneas were studied. The median apnea index for the whole study population was 1.01 (range, 0.1\u20139.1). In conclusion, our study showed a high prevalence of normal polysomnographic findings in infants referred because of apnea and\/or cyanotic events. New clinical prospective studies should be conducted to evaluate whether there is a correlation between PSG findings and outcome at follow\u2010up of infants with a history of apnea and cyanosis. Pediatr Pulmonol. \u00a9 2006 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/ppul.20346","type":"journal-article","created":{"date-parts":[[2006,1,20]],"date-time":"2006-01-20T22:30:15Z","timestamp":1137796215000},"page":"215-221","source":"Crossref","is-referenced-by-count":18,"title":["Polysomnographic findings in 320 infants evaluated for apneic events"],"prefix":"10.1002","volume":"41","author":[{"given":"Ignacio","family":"Sanchez","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis","family":"Vega\u2010Brice\u00f1o","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carla","family":"Mu\u00f1oz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sebasti\u00e1n","family":"Mobarec","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pablo","family":"Brockman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tom\u00e1s","family":"Mesa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"Harris","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,1,20]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1183\/09031936.05.00124704"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1440-1754.2005.00528.x"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1136\/adc.2004.049452"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.mop.0000127159.74908.27"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1164\/ajrccm.153.2.8564147"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1164\/ajrccm.160.4.16041"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1542\/peds.109.4.704"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1067\/mpd.2002.123290"},{"key":"e_1_2_1_10_2","doi-asserted-by":"crossref","first-page":"686","DOI":"10.1542\/peds.92.5.686","article-title":"Oxygen 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