Clinico-statistical Study of Cleft Lip and/or Palate Patients in the Past 16 years at the Center for Advanced Oral Medicine, Hokkaido University Hospital

DOI 21 References
  • MIKOYA Tadashi
    Stomatognathic Function, Center for Advanced Oral Medicine, Hokkaido University Hospital
  • MATSUZAWA Yusuke
    Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Hokkaido University
  • SOGABE Izumi
    Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Hokkaido University
  • ITO Yumi
    Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Hokkaido University
  • YAMAMOTO Eiji
    Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Hokkaido University
  • SHIBUKAWA Toyoko
    Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Hokkaido University
  • KANEKO Tomoo
    Stomatognathic Function, Center for Advanced Oral Medicine, Hokkaido University Hospital
  • MIKAMI Ai
    Stomatognathic Function, Center for Advanced Oral Medicine, Hokkaido University Hospital
  • IMAI Satoko
    Department of Communication Disorders, School of Psychological Science
  • DONEN Masaki
    Department of Dentistry and Oral Surgery, Kushiro Red Cross Hospital
  • MURAKAMI Yuji
    Department of Dentistry and Oral Surgery, Kushiro Red Cross Hospital
  • WATANABE Masaaki
    Department of Dentistry and Oral Surgery, Tomakomai City Hospital
  • NAKAMURA Eiji
    Department of Dentistry and Oral Surgery, Sapporo City Gereral Hospital
  • INOUE Nobuo
    Stomatognathic Function, Center for Advanced Oral Medicine, Hokkaido University Hospital
  • TOTSUKA Yasunori
    Department of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Hokkaido University

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Other Title
  • 北海道大学病院高次口腔医療センターにおける口唇裂・口蓋裂患者の臨床統計的調査

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Abstract

A team approach treatment for cleft lip and/or palate has been performed in the Center for Advanced Oral Medicine, Hokkaido University Hospital since 1995. A clinical and statistical survey was carried out on patients with cleft and/or palate in our Center, during the 16 years from January 1995 until December 2010.<br>1. The total number of primary cases was 461. Out of the patients, 226 (49%) were referred from obstetrics and pediatrics, followed by 118 (25.6%) were from plastic surgery, and 80 (17.4%) from oral and maxillofacial surgery.<br>2. Distribution of the patients according to the cleft type was: cleft lip and/or alveolus(CL) in 51 (11.1%), cleft lip and palate(CLP) in 222 (48.2%), isolated cleft palate (CP) in 126 (27.3%), submucous cleft palate(SMCP) in 55 (11.9%), CL and SMCP in 7 (1.5%).<br>3. Mean initial visits were of CL at 10.8 weeks of age, CLP at 5.0 weeks, CP at 14.2 weeks, SMCP at 96.6 weeks, and CL and SMCP at 38.0 weeks.<br>4. A total of 451 (98%) were patients who live in Hokkaido prefecture. The geographic distribution of the patients resident was 54.7% from Ishikari subprefecture including Sapporo city, 10.4% from Iburi including Tomakomai city, 6.5% from Kushiro, 6.3% from Shiribeshi including Otaru city, and 22.1% from other subprefectures.<br>5. The type of CL and CLP in 280 cases was unilateral in 211 cases and bilateral in 69 cases, with a ratio of 3.1 : 1, and the laterality was the left side in 151 out of 211 and the right side in 60 out of 211, with a ratio of 2.5 : 1.<br>6. Associated congenital anomalies were found in 127 of all patients(27.5%), and they were more frequently in SMCP and CP: 26 out of 55 (47.3%) in SMCP, 57 of 126 (45.2%) in CP, 40 of 222(18.0%) in CLP, 4 of 51 (7.8%) in CLA.

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