The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform

Akira Katakura - One of the best experts on this subject based on the ideXlab platform.

  • Prognostic factors for Maxillary sinus mucosal thickening following Le Fort I osteotomy: a retrospective analysis
    Maxillofacial Plastic and Reconstructive Surgery, 2019
    Co-Authors: Masashi Iwamoto, Masae Yamamoto, Takashi Kamio, Takashi Takaki, Masato Narita, Miki Watanabe, Takahiko Shibahara, Akira Katakura
    Abstract:

    Background Le Fort I osteotomy is one of the surgical procedures now routinely and safely performed. It is possible to move the Maxilla in three dimensions, but it is necessary to separate the Bones around the Maxillary sinus. Therefore, with surgery, Maxillary sinus mucosal thickening occurs. By knowing the changes in the sinus mucosa after surgery and the factors affecting it, it is possible to better predict the outcomes of surgery and contribute to safer surgery. In this study, thickening of Maxillary sinus mucosa before and after surgery in Le Fort I osteotomy was evaluated using multidetector-row computed tomography (MDCT) images, and the changes in mucosal thickening and the related factors were examined. Methods Using MDCT images, the Maxillary sinus mucosa of 125 patients who had undergone Le Fort I osteotomy was retrospectively evaluated before surgery, 1 month after surgery, and 1 year after surgery. On the MDCT images, the Maxillary sinus was judged as mucosal thickening and classified into three grades according to the proportion occupying the Maxillary sinus. In the evaluation of factors related to mucosal thickening, the following eight factors were examined: sex, age, diagnosis, operating time, amount of postoperative bleeding, with/without Bone graft, with/without multisegmental osteotomy, and with/without macrolide therapy after surgery. Results The mean age at the time of surgery was 25.6 ± 8 years. Of all 125 patients, 66 had bilateral thickening, 19 had unilateral thickening, and 40 had no thickening. Factors that were significantly related to mucosal thickening were the operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery. Conclusions Operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery were found to be related to mucosal thickening. In addition, MDCT scanning 1 month after surgery was considered to be appropriate for evaluation of Maxillary sinus mucosal thickening.

  • Prognostic factors for Maxillary sinus mucosal thickening following Le Fort I osteotomy: a retrospective analysis.
    Maxillofacial plastic and reconstructive surgery, 2019
    Co-Authors: Masashi Iwamoto, Masae Yamamoto, Takashi Kamio, Takashi Takaki, Masato Narita, Miki Watanabe, Takahiko Shibahara, Akira Katakura
    Abstract:

    Le Fort I osteotomy is one of the surgical procedures now routinely and safely performed. It is possible to move the Maxilla in three dimensions, but it is necessary to separate the Bones around the Maxillary sinus. Therefore, with surgery, Maxillary sinus mucosal thickening occurs. By knowing the changes in the sinus mucosa after surgery and the factors affecting it, it is possible to better predict the outcomes of surgery and contribute to safer surgery. In this study, thickening of Maxillary sinus mucosa before and after surgery in Le Fort I osteotomy was evaluated using multidetector-row computed tomography (MDCT) images, and the changes in mucosal thickening and the related factors were examined. Using MDCT images, the Maxillary sinus mucosa of 125 patients who had undergone Le Fort I osteotomy was retrospectively evaluated before surgery, 1 month after surgery, and 1 year after surgery. On the MDCT images, the Maxillary sinus was judged as mucosal thickening and classified into three grades according to the proportion occupying the Maxillary sinus. In the evaluation of factors related to mucosal thickening, the following eight factors were examined: sex, age, diagnosis, operating time, amount of postoperative bleeding, with/without Bone graft, with/without multisegmental osteotomy, and with/without macrolide therapy after surgery. The mean age at the time of surgery was 25.6 ± 8 years. Of all 125 patients, 66 had bilateral thickening, 19 had unilateral thickening, and 40 had no thickening. Factors that were significantly related to mucosal thickening were the operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery. Operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery were found to be related to mucosal thickening. In addition, MDCT scanning 1 month after surgery was considered to be appropriate for evaluation of Maxillary sinus mucosal thickening.

Shan-sting Huang - One of the best experts on this subject based on the ideXlab platform.

  • Treatment of squamous cell carcinoma of the retromolar trigone.
    The Laryngoscope, 2006
    Co-Authors: Sheng-po Hao, Ngan-ming Tsang, Kai-ping Chang, Chin-kuo Chen, Shan-sting Huang
    Abstract:

    Retromolar trigone (RMT) squamous cell carcinoma is uncommon but notorious for poor prognosis. We reviewed our experience in the management of RMT cancer to determine survival rates and to identify prognostic factors. Fifty patients with RMT squamous cell carcinoma were treated with surgery and/or radiation or chemoradiation therapy between July 1993 and June 2004 at Chang Gung Memorial Hospital, Taiwan. Patients were followed up for 3 to 106 months (mean, 36 months). There were 6 stage I, 13 stage II, 4 stage II, and 27 stage N patients. The 5-year actuarial survival rate for stage I to N and all stages were 100%, 74.1%, 75%, 43.6%, and 60.6%, respectively. Seventeen (34%) patients had Maxilla Bone (11 [22%]) or mandible Bone (9 [18%]) invasion. Eleven (22%) patients had masticator space involvement. Cervical metastasis rate was 26%. Multivariate analysis revealed that masticator space involvement, neck recurrence, and cervical metastasis were poor prognosticators of survival by order. The Maxilla Bone was more apt to be involved by RMT cancer than the mandible. Patients with masticator space involvement had a 5-year actuarial survival rate of 22.5% and the mean survival time was only 37.8 months. RMT squamous cell carcinomas are aggressive tumors. The Maxilla is more apt to be involved than the mandible. Deep infiltration of the masticator space and invasion of the Maxilla and mandible worsen the prognosis.

  • Treatment of Squamous Cell Carcinoma of the Retromolar Trigone
    The Laryngoscope, 2006
    Co-Authors: Sheng-po Hao, Ngan-ming Tsang, Kai-ping Chang, Chin-kuo Chen, Shan-sting Huang
    Abstract:

    Objectives: Retromolar trigone (RMT) squamous cell carcinoma is uncommon but notorious for poor prognosis. We reviewed our experience in the management of RMT cancer to determine survival rates and to identify prognostic factors. Methods: Fifty patients with RMT squamous cell carcinoma were treated with surgery and/or radiation or chemoradiation therapy between July 1993 and June 2004 at Chang Gung Memorial Hospital, Taiwan. Patients were followed up for 3 to 106 months (mean, 36 months). There were 6 stage I, 13 stage II, 4 stage II, and 27 stage N patients. Results: The 5-year actuarial survival rate for stage I to N and all stages were 100%, 74.1%, 75%, 43.6%, and 60.6%, respectively. Seventeen (34%) patients had Maxilla Bone (11 [22%]) or mandible Bone (9 [18%]) invasion. Eleven (22%) patients had masticator space involvement. Cervical metastasis rate was 26%. Multivariate analysis revealed that masticator space involvement, neck recurrence, and cervical metastasis were poor prognosticators of survival by order. The Maxilla Bone was more apt to be involved by RMT cancer than the mandible. Patients with masticator space involvement had a 5-year actuarial survival rate of 22.5% and the mean survival time was only 37.8 months. Conclusions: RMT squamous cell carcinomas are aggressive tumors. The Maxilla is more apt to be involved than the mandible. Deep infiltration of the masticator space and invasion of the Maxilla and mandible worsen the prognosis.

Masashi Iwamoto - One of the best experts on this subject based on the ideXlab platform.

  • Prognostic factors for Maxillary sinus mucosal thickening following Le Fort I osteotomy: a retrospective analysis
    Maxillofacial Plastic and Reconstructive Surgery, 2019
    Co-Authors: Masashi Iwamoto, Masae Yamamoto, Takashi Kamio, Takashi Takaki, Masato Narita, Miki Watanabe, Takahiko Shibahara, Akira Katakura
    Abstract:

    Background Le Fort I osteotomy is one of the surgical procedures now routinely and safely performed. It is possible to move the Maxilla in three dimensions, but it is necessary to separate the Bones around the Maxillary sinus. Therefore, with surgery, Maxillary sinus mucosal thickening occurs. By knowing the changes in the sinus mucosa after surgery and the factors affecting it, it is possible to better predict the outcomes of surgery and contribute to safer surgery. In this study, thickening of Maxillary sinus mucosa before and after surgery in Le Fort I osteotomy was evaluated using multidetector-row computed tomography (MDCT) images, and the changes in mucosal thickening and the related factors were examined. Methods Using MDCT images, the Maxillary sinus mucosa of 125 patients who had undergone Le Fort I osteotomy was retrospectively evaluated before surgery, 1 month after surgery, and 1 year after surgery. On the MDCT images, the Maxillary sinus was judged as mucosal thickening and classified into three grades according to the proportion occupying the Maxillary sinus. In the evaluation of factors related to mucosal thickening, the following eight factors were examined: sex, age, diagnosis, operating time, amount of postoperative bleeding, with/without Bone graft, with/without multisegmental osteotomy, and with/without macrolide therapy after surgery. Results The mean age at the time of surgery was 25.6 ± 8 years. Of all 125 patients, 66 had bilateral thickening, 19 had unilateral thickening, and 40 had no thickening. Factors that were significantly related to mucosal thickening were the operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery. Conclusions Operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery were found to be related to mucosal thickening. In addition, MDCT scanning 1 month after surgery was considered to be appropriate for evaluation of Maxillary sinus mucosal thickening.

  • Prognostic factors for Maxillary sinus mucosal thickening following Le Fort I osteotomy: a retrospective analysis.
    Maxillofacial plastic and reconstructive surgery, 2019
    Co-Authors: Masashi Iwamoto, Masae Yamamoto, Takashi Kamio, Takashi Takaki, Masato Narita, Miki Watanabe, Takahiko Shibahara, Akira Katakura
    Abstract:

    Le Fort I osteotomy is one of the surgical procedures now routinely and safely performed. It is possible to move the Maxilla in three dimensions, but it is necessary to separate the Bones around the Maxillary sinus. Therefore, with surgery, Maxillary sinus mucosal thickening occurs. By knowing the changes in the sinus mucosa after surgery and the factors affecting it, it is possible to better predict the outcomes of surgery and contribute to safer surgery. In this study, thickening of Maxillary sinus mucosa before and after surgery in Le Fort I osteotomy was evaluated using multidetector-row computed tomography (MDCT) images, and the changes in mucosal thickening and the related factors were examined. Using MDCT images, the Maxillary sinus mucosa of 125 patients who had undergone Le Fort I osteotomy was retrospectively evaluated before surgery, 1 month after surgery, and 1 year after surgery. On the MDCT images, the Maxillary sinus was judged as mucosal thickening and classified into three grades according to the proportion occupying the Maxillary sinus. In the evaluation of factors related to mucosal thickening, the following eight factors were examined: sex, age, diagnosis, operating time, amount of postoperative bleeding, with/without Bone graft, with/without multisegmental osteotomy, and with/without macrolide therapy after surgery. The mean age at the time of surgery was 25.6 ± 8 years. Of all 125 patients, 66 had bilateral thickening, 19 had unilateral thickening, and 40 had no thickening. Factors that were significantly related to mucosal thickening were the operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery. Operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery were found to be related to mucosal thickening. In addition, MDCT scanning 1 month after surgery was considered to be appropriate for evaluation of Maxillary sinus mucosal thickening.

Sheng-po Hao - One of the best experts on this subject based on the ideXlab platform.

  • Treatment of squamous cell carcinoma of the retromolar trigone.
    The Laryngoscope, 2006
    Co-Authors: Sheng-po Hao, Ngan-ming Tsang, Kai-ping Chang, Chin-kuo Chen, Shan-sting Huang
    Abstract:

    Retromolar trigone (RMT) squamous cell carcinoma is uncommon but notorious for poor prognosis. We reviewed our experience in the management of RMT cancer to determine survival rates and to identify prognostic factors. Fifty patients with RMT squamous cell carcinoma were treated with surgery and/or radiation or chemoradiation therapy between July 1993 and June 2004 at Chang Gung Memorial Hospital, Taiwan. Patients were followed up for 3 to 106 months (mean, 36 months). There were 6 stage I, 13 stage II, 4 stage II, and 27 stage N patients. The 5-year actuarial survival rate for stage I to N and all stages were 100%, 74.1%, 75%, 43.6%, and 60.6%, respectively. Seventeen (34%) patients had Maxilla Bone (11 [22%]) or mandible Bone (9 [18%]) invasion. Eleven (22%) patients had masticator space involvement. Cervical metastasis rate was 26%. Multivariate analysis revealed that masticator space involvement, neck recurrence, and cervical metastasis were poor prognosticators of survival by order. The Maxilla Bone was more apt to be involved by RMT cancer than the mandible. Patients with masticator space involvement had a 5-year actuarial survival rate of 22.5% and the mean survival time was only 37.8 months. RMT squamous cell carcinomas are aggressive tumors. The Maxilla is more apt to be involved than the mandible. Deep infiltration of the masticator space and invasion of the Maxilla and mandible worsen the prognosis.

  • Treatment of Squamous Cell Carcinoma of the Retromolar Trigone
    The Laryngoscope, 2006
    Co-Authors: Sheng-po Hao, Ngan-ming Tsang, Kai-ping Chang, Chin-kuo Chen, Shan-sting Huang
    Abstract:

    Objectives: Retromolar trigone (RMT) squamous cell carcinoma is uncommon but notorious for poor prognosis. We reviewed our experience in the management of RMT cancer to determine survival rates and to identify prognostic factors. Methods: Fifty patients with RMT squamous cell carcinoma were treated with surgery and/or radiation or chemoradiation therapy between July 1993 and June 2004 at Chang Gung Memorial Hospital, Taiwan. Patients were followed up for 3 to 106 months (mean, 36 months). There were 6 stage I, 13 stage II, 4 stage II, and 27 stage N patients. Results: The 5-year actuarial survival rate for stage I to N and all stages were 100%, 74.1%, 75%, 43.6%, and 60.6%, respectively. Seventeen (34%) patients had Maxilla Bone (11 [22%]) or mandible Bone (9 [18%]) invasion. Eleven (22%) patients had masticator space involvement. Cervical metastasis rate was 26%. Multivariate analysis revealed that masticator space involvement, neck recurrence, and cervical metastasis were poor prognosticators of survival by order. The Maxilla Bone was more apt to be involved by RMT cancer than the mandible. Patients with masticator space involvement had a 5-year actuarial survival rate of 22.5% and the mean survival time was only 37.8 months. Conclusions: RMT squamous cell carcinomas are aggressive tumors. The Maxilla is more apt to be involved than the mandible. Deep infiltration of the masticator space and invasion of the Maxilla and mandible worsen the prognosis.

Masae Yamamoto - One of the best experts on this subject based on the ideXlab platform.

  • Prognostic factors for Maxillary sinus mucosal thickening following Le Fort I osteotomy: a retrospective analysis
    Maxillofacial Plastic and Reconstructive Surgery, 2019
    Co-Authors: Masashi Iwamoto, Masae Yamamoto, Takashi Kamio, Takashi Takaki, Masato Narita, Miki Watanabe, Takahiko Shibahara, Akira Katakura
    Abstract:

    Background Le Fort I osteotomy is one of the surgical procedures now routinely and safely performed. It is possible to move the Maxilla in three dimensions, but it is necessary to separate the Bones around the Maxillary sinus. Therefore, with surgery, Maxillary sinus mucosal thickening occurs. By knowing the changes in the sinus mucosa after surgery and the factors affecting it, it is possible to better predict the outcomes of surgery and contribute to safer surgery. In this study, thickening of Maxillary sinus mucosa before and after surgery in Le Fort I osteotomy was evaluated using multidetector-row computed tomography (MDCT) images, and the changes in mucosal thickening and the related factors were examined. Methods Using MDCT images, the Maxillary sinus mucosa of 125 patients who had undergone Le Fort I osteotomy was retrospectively evaluated before surgery, 1 month after surgery, and 1 year after surgery. On the MDCT images, the Maxillary sinus was judged as mucosal thickening and classified into three grades according to the proportion occupying the Maxillary sinus. In the evaluation of factors related to mucosal thickening, the following eight factors were examined: sex, age, diagnosis, operating time, amount of postoperative bleeding, with/without Bone graft, with/without multisegmental osteotomy, and with/without macrolide therapy after surgery. Results The mean age at the time of surgery was 25.6 ± 8 years. Of all 125 patients, 66 had bilateral thickening, 19 had unilateral thickening, and 40 had no thickening. Factors that were significantly related to mucosal thickening were the operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery. Conclusions Operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery were found to be related to mucosal thickening. In addition, MDCT scanning 1 month after surgery was considered to be appropriate for evaluation of Maxillary sinus mucosal thickening.

  • Prognostic factors for Maxillary sinus mucosal thickening following Le Fort I osteotomy: a retrospective analysis.
    Maxillofacial plastic and reconstructive surgery, 2019
    Co-Authors: Masashi Iwamoto, Masae Yamamoto, Takashi Kamio, Takashi Takaki, Masato Narita, Miki Watanabe, Takahiko Shibahara, Akira Katakura
    Abstract:

    Le Fort I osteotomy is one of the surgical procedures now routinely and safely performed. It is possible to move the Maxilla in three dimensions, but it is necessary to separate the Bones around the Maxillary sinus. Therefore, with surgery, Maxillary sinus mucosal thickening occurs. By knowing the changes in the sinus mucosa after surgery and the factors affecting it, it is possible to better predict the outcomes of surgery and contribute to safer surgery. In this study, thickening of Maxillary sinus mucosa before and after surgery in Le Fort I osteotomy was evaluated using multidetector-row computed tomography (MDCT) images, and the changes in mucosal thickening and the related factors were examined. Using MDCT images, the Maxillary sinus mucosa of 125 patients who had undergone Le Fort I osteotomy was retrospectively evaluated before surgery, 1 month after surgery, and 1 year after surgery. On the MDCT images, the Maxillary sinus was judged as mucosal thickening and classified into three grades according to the proportion occupying the Maxillary sinus. In the evaluation of factors related to mucosal thickening, the following eight factors were examined: sex, age, diagnosis, operating time, amount of postoperative bleeding, with/without Bone graft, with/without multisegmental osteotomy, and with/without macrolide therapy after surgery. The mean age at the time of surgery was 25.6 ± 8 years. Of all 125 patients, 66 had bilateral thickening, 19 had unilateral thickening, and 40 had no thickening. Factors that were significantly related to mucosal thickening were the operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery. Operative time for the Maxilla, Bone grafts, and macrolide therapy after surgery were found to be related to mucosal thickening. In addition, MDCT scanning 1 month after surgery was considered to be appropriate for evaluation of Maxillary sinus mucosal thickening.