CHRIS ROBINSON LAGANAO - Academia.edu (original) (raw)

Uploads

Papers by CHRIS ROBINSON LAGANAO

Research paper thumbnail of Classification and Stages of Middle Ear Cholesteatoma at the Southern Philippines Medical Center Using the European Academy of Otology and Neurotology / Japan Otological Society (EAONO / JOS) System

Philippine journal of Otolaryngology Head and Neck Surgery (On-line), May 29, 2021

Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ea... more Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ear surgery at the Southern Philippines Medical Center from January to December 2019, based on European Academy of Otology and Neurotology / Japan Otological Society (EAONO/ JOS) system. Methods: Design: Case Series Setting: Tertiary Government Training Hospital Participants: A total of 42 charts were included in the study Results: Of the 42 cases evaluated, congenital cholesteatoma was seen in 4 while acquired cholesteatoma was noted in 38, (further subdivided into 34 retraction pocket cholesteatoma and 4 non-retraction pocket/traumatic cholesteatoma). A majority (57%) had Stage II cholesteatoma (mass occupying at least two sub-sites in the middle ear) at the time of surgery. Eight (19%) had stage I cholesteatoma (confined to one sub-site), five (12%) had stage III cholesteatoma evidenced by extracranial complications such as subperiosteal abscess and erosion of the semicircular canals. Stage IV cholesteatoma was seen in 5 (12%) presenting with intracranial abscess. Canal wall down mastoidectomy was the most common surgical approach performed. The sinus tympani (S 2) was the most commonly involved difficult to access site across all classifications of middle ear cholesteatoma (60%). Conclusion: Our study provided an initial profile of the stages and severity of middle ear cholesteatoma in our institution based on actual surgical approaches. Such a profile can be the nidus for a database that can help us to understand disease prevalence and compare local surgical practices with those in the international community.

Research paper thumbnail of Pre-Operative Temporal Bone CT Scan Readings and Intraoperative Findings During Mastoidectomy

Philippine journal of Otolaryngology Head and Neck Surgery (On-line), Nov 11, 2021

Objective: To determine the correlation between pre-operative in-house temporal bone CT scan read... more Objective: To determine the correlation between pre-operative in-house temporal bone CT scan readings and intraoperative findings during mastoidectomy for cholesteatoma in a tertiary government hospital from January 2018 to December 2019. Methods: Design: Review of Records Setting: Tertiary Government Hospital Participants: A total of 25 charts were included in the study. Surgical memoranda containing intraoperative findings were scrutinized. Data on key structures or locations were filled into a data gathering tool. Categorical descriptions were used for surgical findings: "present" or "absent" for location, and "intact" or "eroded" for status of ossicles and critical structures. Radiological readings to describe location and extent of disease were recorded as either "involved" or "uninvolved, " while "intact" or "eroded" were used to describe the status of ossicles and critical structures identified. Statistical correlations were computed using Cohen kappa coefficient. Sensitivity, specificity, and predictive values were also computed. Results: No correlation between radiologic readings and surgical findings were found in terms of location and extent of cholesteatoma (κ < 0). However, moderate agreement was noted in terms of status of the malleus (κ = .42, 95% CI, .059 to .781, p<.05), substantial agreement noted for the incus status (κ = 0.682, 95% CI, .267 to .875, p<.05), and fair agreement noted for the stapes status (κ = .303, 95% CI,-.036 to .642, p>.05). Slight agreement was also noted in description of facial canal and labyrinth (κ =.01, 95% CI,-.374 to .394, p>.05), while no correlation was noted for the status of the tegmen (κ = 0, 95% CI,-.392 to .392, p<.05). Conclusion: Our study shows the unreliability and shortcomings of CT scan readings in our institution in detecting and predicting surgical findings. An institutional policy needs to be considered to ensure that temporal bone CT scans be obtained using techniques that can appropriately describe the status of the middle ear and adjacent structures with better reliability.

Research paper thumbnail of Pre-Operative Temporal Bone CT Scan Readings and Intraoperative Findings During Mastoidectomy

Philippine Journal of Otolaryngology Head and Neck Surgery

Objective: To determine the correlation between pre-operative in-house temporal bone CT scan read... more Objective: To determine the correlation between pre-operative in-house temporal bone CT scan readings and intraoperative findings during mastoidectomy for cholesteatoma in a tertiary government hospital from January 2018 to December 2019. Methods: Design: Review of Records Setting: Tertiary Government Hospital Participants: A total of 25 charts were included in the study. Surgical memoranda containing intraoperative findings were scrutinized. Data on key structures or locations were filled into a data gathering tool. Categorical descriptions were used for surgical findings: “present” or “absent” for location, and “intact” or “eroded” for status of ossicles and critical structures. Radiological readings to describe location and extent of disease were recorded as either “involved” or “uninvolved,” while “intact” or “eroded” were used to describe the status of ossicles and critical structures identified. Statistical correlations were computed using Cohen kappa coefficient. Sensitivity,...

Research paper thumbnail of Classification and Stages of Middle Ear Cholesteatoma at the Southern Philippines Medical Center Using the European Academy of Otology and Neurotology / Japan Otological Society (EAONO / JOS) System

Philippine Journal of Otolaryngology Head and Neck Surgery, 2021

Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ea... more Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ear surgery at the Southern Philippines Medical Center from January to December 2019, based on European Academy of Otology and Neurotology / Japan Otological Society (EAONO/ JOS) system. Methods: Design: Case Series Setting: Tertiary Government Training Hospital Participants: A total of 42 charts were included in the study Results: Of the 42 cases evaluated, congenital cholesteatoma was seen in 4 while acquired cholesteatoma was noted in 38, (further subdivided into 34 retraction pocket cholesteatoma and 4 non-retraction pocket/traumatic cholesteatoma). A majority (57%) had Stage II cholesteatoma (mass occupying at least two sub-sites in the middle ear) at the time of surgery. Eight (19%) had stage I cholesteatoma (confined to one sub-site), five (12%) had stage III cholesteatoma evidenced by extracranial complications such as subperiosteal abscess and erosion of the semicircular canals. S...

Research paper thumbnail of Classification and Stages of Middle Ear Cholesteatoma at the Southern Philippines Medical Center Using the European Academy of Otology and Neurotology / Japan Otological Society (EAONO / JOS) System

Philippine journal of Otolaryngology Head and Neck Surgery (On-line), May 29, 2021

Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ea... more Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ear surgery at the Southern Philippines Medical Center from January to December 2019, based on European Academy of Otology and Neurotology / Japan Otological Society (EAONO/ JOS) system. Methods: Design: Case Series Setting: Tertiary Government Training Hospital Participants: A total of 42 charts were included in the study Results: Of the 42 cases evaluated, congenital cholesteatoma was seen in 4 while acquired cholesteatoma was noted in 38, (further subdivided into 34 retraction pocket cholesteatoma and 4 non-retraction pocket/traumatic cholesteatoma). A majority (57%) had Stage II cholesteatoma (mass occupying at least two sub-sites in the middle ear) at the time of surgery. Eight (19%) had stage I cholesteatoma (confined to one sub-site), five (12%) had stage III cholesteatoma evidenced by extracranial complications such as subperiosteal abscess and erosion of the semicircular canals. Stage IV cholesteatoma was seen in 5 (12%) presenting with intracranial abscess. Canal wall down mastoidectomy was the most common surgical approach performed. The sinus tympani (S 2) was the most commonly involved difficult to access site across all classifications of middle ear cholesteatoma (60%). Conclusion: Our study provided an initial profile of the stages and severity of middle ear cholesteatoma in our institution based on actual surgical approaches. Such a profile can be the nidus for a database that can help us to understand disease prevalence and compare local surgical practices with those in the international community.

Research paper thumbnail of Pre-Operative Temporal Bone CT Scan Readings and Intraoperative Findings During Mastoidectomy

Philippine journal of Otolaryngology Head and Neck Surgery (On-line), Nov 11, 2021

Objective: To determine the correlation between pre-operative in-house temporal bone CT scan read... more Objective: To determine the correlation between pre-operative in-house temporal bone CT scan readings and intraoperative findings during mastoidectomy for cholesteatoma in a tertiary government hospital from January 2018 to December 2019. Methods: Design: Review of Records Setting: Tertiary Government Hospital Participants: A total of 25 charts were included in the study. Surgical memoranda containing intraoperative findings were scrutinized. Data on key structures or locations were filled into a data gathering tool. Categorical descriptions were used for surgical findings: "present" or "absent" for location, and "intact" or "eroded" for status of ossicles and critical structures. Radiological readings to describe location and extent of disease were recorded as either "involved" or "uninvolved, " while "intact" or "eroded" were used to describe the status of ossicles and critical structures identified. Statistical correlations were computed using Cohen kappa coefficient. Sensitivity, specificity, and predictive values were also computed. Results: No correlation between radiologic readings and surgical findings were found in terms of location and extent of cholesteatoma (κ < 0). However, moderate agreement was noted in terms of status of the malleus (κ = .42, 95% CI, .059 to .781, p<.05), substantial agreement noted for the incus status (κ = 0.682, 95% CI, .267 to .875, p<.05), and fair agreement noted for the stapes status (κ = .303, 95% CI,-.036 to .642, p>.05). Slight agreement was also noted in description of facial canal and labyrinth (κ =.01, 95% CI,-.374 to .394, p>.05), while no correlation was noted for the status of the tegmen (κ = 0, 95% CI,-.392 to .392, p<.05). Conclusion: Our study shows the unreliability and shortcomings of CT scan readings in our institution in detecting and predicting surgical findings. An institutional policy needs to be considered to ensure that temporal bone CT scans be obtained using techniques that can appropriately describe the status of the middle ear and adjacent structures with better reliability.

Research paper thumbnail of Pre-Operative Temporal Bone CT Scan Readings and Intraoperative Findings During Mastoidectomy

Philippine Journal of Otolaryngology Head and Neck Surgery

Objective: To determine the correlation between pre-operative in-house temporal bone CT scan read... more Objective: To determine the correlation between pre-operative in-house temporal bone CT scan readings and intraoperative findings during mastoidectomy for cholesteatoma in a tertiary government hospital from January 2018 to December 2019. Methods: Design: Review of Records Setting: Tertiary Government Hospital Participants: A total of 25 charts were included in the study. Surgical memoranda containing intraoperative findings were scrutinized. Data on key structures or locations were filled into a data gathering tool. Categorical descriptions were used for surgical findings: “present” or “absent” for location, and “intact” or “eroded” for status of ossicles and critical structures. Radiological readings to describe location and extent of disease were recorded as either “involved” or “uninvolved,” while “intact” or “eroded” were used to describe the status of ossicles and critical structures identified. Statistical correlations were computed using Cohen kappa coefficient. Sensitivity,...

Research paper thumbnail of Classification and Stages of Middle Ear Cholesteatoma at the Southern Philippines Medical Center Using the European Academy of Otology and Neurotology / Japan Otological Society (EAONO / JOS) System

Philippine Journal of Otolaryngology Head and Neck Surgery, 2021

Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ea... more Objective: To determine the stage of middle ear cholesteatoma of patients who underwent middle ear surgery at the Southern Philippines Medical Center from January to December 2019, based on European Academy of Otology and Neurotology / Japan Otological Society (EAONO/ JOS) system. Methods: Design: Case Series Setting: Tertiary Government Training Hospital Participants: A total of 42 charts were included in the study Results: Of the 42 cases evaluated, congenital cholesteatoma was seen in 4 while acquired cholesteatoma was noted in 38, (further subdivided into 34 retraction pocket cholesteatoma and 4 non-retraction pocket/traumatic cholesteatoma). A majority (57%) had Stage II cholesteatoma (mass occupying at least two sub-sites in the middle ear) at the time of surgery. Eight (19%) had stage I cholesteatoma (confined to one sub-site), five (12%) had stage III cholesteatoma evidenced by extracranial complications such as subperiosteal abscess and erosion of the semicircular canals. S...