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Obermeyer IP, Nguyen CH, Yoo F, Garg R, Kuan EC. Anatomic Relationship Between the Head of the Middle Turbinate and First Olfactory Filum: A Radiographic Assessment. Ann Otol Rhinol Laryngol 2024; 133:418-423. [PMID: 38240258 DOI: 10.1177/00034894241227034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
BACKGROUND The endoscopic modified Lothrop procedure (EMLP) has become a frequently utilized procedure in rhinologic surgery. One of the most serious complications of the procedure is cerebrospinal fluid leak, which may occur due to lack of recognition of the anterior skull base in the region of the first olfactory filum (FOF), or direct injury to the FOF itself. OBJECTIVES To evaluate the position of the head of the middle turbinate (MT) relative to the FOF, which is an important landmark in the EMLP. METHODS A series of previously obtained patient computed tomography scans of the sinus were reviewed. A reproducible process was implemented to obtain the measurements. First, the FOF was identified on an axial series. Using a localization feature of the radiographic software, this anteroposterior (AP) position could be visualized in a coronal plane. Subsequently, the MT was viewed in a sagittal plane, where a measurement between the head of the MT and the AP position of the FOF could be performed. RESULTS The AP distance between the head of the MT and the FOF was measured in 92 patients. The head of the MT was either at or anterior to the FOF in all measured subjects. The mean anterior distance of the head of the MT to FOF was 3.6 mm (±2.4 mm) on the right, and 3.8 mm (±2.2 mm) on the left. The range in AP distance was 0 to 12 mm. There was no significant difference in AP distance between the head of the MT and FOF based on gender (P = .413) or diagnosis (P = .254). CONCLUSIONS In our study, the head of the MT was reliably at or anterior to the FOF in all subjects, suggesting its utility as a fixed landmark in endoscopic sinus surgery, particularly in the EMLP. LEVEL OF EVIDENCE N/A.
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Affiliation(s)
- Isaac P Obermeyer
- Department of Otolaryngology-Head and Neck Surgery, University of California Irvine, Irvine, CA, USA
| | - Cecilia H Nguyen
- School of Medicine, University of California Irvine, Irvine, CA, USA
| | - Frederick Yoo
- Department of Otolaryngology-Head and Neck Surgery, Kaiser Permanente, Anaheim, CA, USA
| | - Rohit Garg
- Department of Otolaryngology-Head and Neck Surgery, Kaiser Permanente, Anaheim, CA, USA
| | - Edward C Kuan
- Department of Otolaryngology-Head and Neck Surgery, University of California Irvine, Irvine, CA, USA
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Fronto-septal rostrum: prevalence, classification and clinical implications. The Journal of Laryngology & Otology 2018; 132:423-428. [PMID: 29891018 DOI: 10.1017/s0022215118000130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To describe a newly observed frontal sinus anatomical variant, the fronto-septal rostrum. METHODS Consecutive sinus computed tomography scans performed during 2013 were reviewed. The fronto-septal rostrum was defined as a mucosa-lined air space formed in the attachment of the most upper bony nasal septum and the central floor of the frontal sinuses. RESULTS The study included 400 computed tomography scans from 189 women (47.3 per cent) and 211 men (52.8 per cent), with a mean age of 46.8 years. A fronto-septal rostrum was observed in 122 patients (30.5 per cent), with a mean length of 10.63 mm, width of 4.52 mm, height of 2.18 mm and volume of 63.52 mm3. There was no statistically significant difference related to gender (p = 0.343), and no association between the side of the fronto-septal rostrum and age (p = 0.811) or volume (p = 0.203). CONCLUSION The newly described fronto-septal rostrum has possible clinical and surgical implications. It is suggested that this aerated space is used in specific surgical indications and its presence evaluated in cases of septal infection.
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Abstract
Background The aim of this study was to examine the long-term outcomes of the modified endoscopic Lothrop procedure for the management of the most severe forms of recalcitrant chronic frontal sinusitis. Methods This case series evaluated 13 consecutive cases of the modified endoscopic Lothrop procedure for chronic frontal sinusitis from April 1996 to December 1999. Patent communication to the frontal sinus was evaluated by postoperative endoscopic exam. Postoperative patient symptomatology and medication requirements were assessed during clinic evaluation and by standardized telephone questionnaire. Results At a mean follow-up period of 34.5 months, a 77% patency rate was obtained, with 2 of the 13 patients requiring an osteoplastic flap with obliteration. Telephone questionnaire results indicate improved symptoms and decreased medication requirements in the majority of patients who maintained patency. Conclusions These results show that the modified endoscopic Lothrop procedure provides a good alternative to the osteoplastic flap with obliteration for patients with the most severe forms of chronic frontal sinusitis. Initially, high patency rates decline with longer-term follow-up, and severe forms of chronic rhinosinusitis continue to significantly impact patient-perceived quality of life in some patients. The modified endoscopic Lothrop procedure should be reserved for patients who have failed more conservative endoscopic approaches to the frontal recess.
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Affiliation(s)
- Stacey L. Schulze
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin Presented at the fall American Rhinologic Society meeting on September 7, 2001, Denver, Colorado This project received no financial/other support that may represent a conflict of interest
| | - Todd A. Loehrl
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin Presented at the fall American Rhinologic Society meeting on September 7, 2001, Denver, Colorado This project received no financial/other support that may represent a conflict of interest
| | - Timothy L. Smith
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin Presented at the fall American Rhinologic Society meeting on September 7, 2001, Denver, Colorado This project received no financial/other support that may represent a conflict of interest
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Schlosser RJ, Zachmann G, Harrison S, Gross CW. The Endoscopic Modified Lothrop: Long-Term Follow-Up on 44 Patients. ACTA ACUST UNITED AC 2018. [DOI: 10.1177/194589240201600206] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background The gold standard for surgical treatment of chronic frontal sinusitis has been the osteoplastic flap with obliteration. In an attempt to preserve the frontal sinus, we have been performing the endoscopic modified Lothrop or frontal drill-out. Methods Retrospective chart review. Results We performed the modified Lothrop on 54 patients between 1993 and 1998. The modified Lothrop was successful (no revision surgeries and only an occasional need for antibiotics) after one procedure in 68% (30/44) of patients followed up for ≥1 year. Six patients underwent successful revision, bringing the overall success rate to 82% (36/44). Eight patients (18%) eventually underwent osteoplastic flap with obliteration, three of those after attempted revision. Mean follow-up was 40 months with failures occurring a mean of 12 months after initial Lothrop. Overall complication rate was 11%. Conclusions The modified Lothrop is a technically challenging operation that provides an acceptable alternative to the osteoplastic flap with obliteration.
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Affiliation(s)
- Rodney J. Schlosser
- Department of Otolaryngology–Head and Neck Surgery, University of Virginia Health Sciences Center, Charlottesville, Virginia
| | - Gregory Zachmann
- Department of Otolaryngology–Head and Neck Surgery, University of Virginia Health Sciences Center, Charlottesville, Virginia
| | - Scott Harrison
- Department of Otolaryngology–Head and Neck Surgery, University of Virginia Health Sciences Center, Charlottesville, Virginia
| | - Charles W. Gross
- Department of Otolaryngology–Head and Neck Surgery, University of Virginia Health Sciences Center, Charlottesville, Virginia
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Shih LC, Patel VS, Choby GW, Nakayama T, Hwang PH. Evolution of the endoscopic modified Lothrop procedure: A systematic review and meta-analysis. Laryngoscope 2017; 128:317-326. [PMID: 28921539 DOI: 10.1002/lary.26794] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/02/2017] [Accepted: 06/16/2017] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Since first described in the 1990s, the endoscopic modified Lothrop procedure (EMLP) has been the subject of a growing body of literature. We performed a review to compare indications and outcomes of EMLP in an early cohort of publications (1990-2008) versus a contemporary cohort (2009-2016) and compare outcomes associated with follow-up ≥2 years versus <2 years. DATA SOURCES PubMed, SCOPUS and Cochrane databases. REVIEW METHODS An English-language search of the PubMed and Ovid databases was conducted to identify publications from 1990 to 2016 reporting clinical outcomes of EMLP. Meta-analysis was performed using Statistical Analysis System 9.4. RESULTS A total of 1,205 patients were abstracted from 29 articles with a mean follow-up of 29.1 ± 10.3 months. The overall rate of significant or complete symptom improvement was 86.5% (95% confidence interval [CI]: 84.2%-88.7%). The overall patency rate was 90.7% (95% CI: 89.1%-92.3%), with a revision rate of 12.6% (95% CI: 10.6%-14.3%). Compared to the early cohort, patients in the contemporary cohort underwent EMLP more often for tumors (P < .001), had higher rates of complete or significant symptom improvement (90.0% vs. 82.6 %, P < .001); and trended toward greater patency rates (92.1% vs. 88.6%, P = .052). Compared to the short-term follow-up cohort, the long-term cohort showed no differences in symptom improvement or patency, but the revision rate was higher (14.5% vs. 9.2%, P = .016). CONCLUSIONS In the last decade, EMLP has been performed more frequently for tumors. Recent studies have demonstrated improved symptom outcomes and a trend toward improved patency rates. The revision rate increased significantly when follow-up exceeded 2 years. Laryngoscope, 128:317-326, 2018.
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Affiliation(s)
- Liang-Chun Shih
- Division of Rhinology and Endoscopic Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, U.S.A.,Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Vishal S Patel
- Division of Rhinology and Endoscopic Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, U.S.A
| | - Garret W Choby
- Division of Rhinology and Endoscopic Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, U.S.A
| | - Tsuguhisa Nakayama
- Division of Rhinology and Endoscopic Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, U.S.A.,Department of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan
| | - Peter H Hwang
- Division of Rhinology and Endoscopic Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, U.S.A
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Saini AT, Govindaraj S. Evaluation and Decision Making in Frontal Sinus Surgery. Otolaryngol Clin North Am 2017; 49:911-25. [PMID: 27450615 DOI: 10.1016/j.otc.2016.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Management of frontal sinusitis can be challenging for even the most experienced otolaryngologists. A thorough understanding of the anatomy and pathophysiology of the frontal sinus is essential to properly manage disease affecting the frontal sinus. Being able to distinguish acute viral from acute bacterial and acute from chronic sinusitis is crucial because these distinctions guide appropriate management. Nasal endoscopy can confirm diagnosis, and radiologic imaging, including computed tomography and MRI, is often a necessary adjunct that aids in determining appropriate therapeutic decisions. One must be aware of the many procedures used in the surgical treatment of frontal sinusitis.
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Affiliation(s)
- Alok T Saini
- Otolaryngology-Head and Neck Surgery, Mount Sinai Medical Center, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Satish Govindaraj
- Otolaryngology-Head and Neck Surgery, Mount Sinai Medical Center, One Gustave L. Levy Place, New York, NY 10029, USA.
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DeConde AS, Smith TL. Outcomes After Frontal Sinus Surgery: An Evidence-Based Review. Otolaryngol Clin North Am 2017; 49:1019-33. [PMID: 27450618 DOI: 10.1016/j.otc.2016.03.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Endoscopic sinus surgery is an effective intervention at improving quality of life for patients with medically refractory chronic rhinosinusitis. The evidence supporting frontal sinusotomy is limited to single institution case series. However, the data for Draf IIa frontal sinusotomy do demonstrate that most patients experience lasting frontal sinus patency on postoperative endoscopic examination and improvements in quality of life. Salvage endoscopic frontal sinus surgery via a Draf III shows high rates of neo-ostium patency and subjective improvements in symptoms at a 2-year time point in case series.
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Affiliation(s)
- Adam S DeConde
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of California-San Diego, 200 W Arbor Dr., MC 8895, San Diego, CA 92103-8895, USA
| | - Timothy L Smith
- Division of Rhinology, Sinus, and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Oregon Sinus Center, Oregon Health & Science University, 3181 Southwest Sam Jackson Park Road, PV-01, Portland, OR 97239, USA.
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Abstract
Refractory chronic rhinosinusitis can be challenging to treat. Initial treatment focuses on medical and nonsurgical treatments. If these treatments fail, revision endoscopic sinus surgery is an option. A plan for revision surgery must address anatomic factors contributing to recurrence. Preoperative imaging and sinonasal endoscopy are systematically reviewed; areas of disease and "danger" zones are identified. Traditional anatomic landmarks are often obscured or absent; thus, a set of consistent landmarks (unchanged despite prior surgery) are used to navigate the revision endoscopic sinus surgery. Wide sinusotomies permit visualization and access to disease intraoperatively. Large sinus openings also facilitate post-operative debridements in clinic, endoscopic disease monitoring, and topical sinus therapy.
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Affiliation(s)
- Corinna G Levine
- Department of Otolaryngology, University of Miami, Miller School of Medicine, 1120 Northwest 14th Street, 5th Floor, Miami, FL 33136, USA.
| | - Roy R Casiano
- American Rhinologic Society, Rhinology and Endoscopic Skull Base Program, Department of Otolaryngology, Head & Neck Surgery, University of Miami, Miller School of Medicine, Clinical Research Building, 5th Floor, 1120 Northwest 14th Street, Miami, FL 33136, USA
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Craig JR, Petrov D, Khalili S, Brooks SG, Lee JYK, Adappa ND, Palmer JN. The nasofrontal beak: A consistent landmark for superior septectomy during Draf III drill out. Am J Rhinol Allergy 2017; 30:230-4. [PMID: 27216356 DOI: 10.2500/ajra.2016.30.4312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Cerebrospinal fluid (CSF) leak occurs in 1-11% of endoscopic Draf III, or endoscopic modified Lothrop, procedures. CSF leak can occur during surgery during a superior nasal septectomy. This study investigated whether the posterior edge of the nasofrontal beak (NFB) at the level of the internal frontal ostium is a safe landmark to use to avoid skull base injury when beginning the superior septectomy. METHODS Preoperative computed tomography maxillofacial scans were reviewed from 100 patients from the University of Pennsylvania sinus surgery data base. The narrowest anteroposterior distance between the posterior edge of the NFB and the anterior aspect of the olfactory fossa (OF) at the level of the internal frontal ostium was measured in each patient. Measurements were taken in the midline and to the left and right of midline. Six fresh cadaver heads were also dissected to evaluate these relationships. RESULTS On computed tomography analysis, the NFB was anterior to the OF on the left and right of the midline in 100% of the patients, with mean distances of 6.04 and 6.41 mm, respectively. The NFB was anterior to the OF in the midline in 98% of patients, with a mean distance of 9.02 mm. In all six cadavers, the posterior edge of the NFB was anterior to the OF in the midline and to the left and right of midline at the level of the internal frontal ostia. CONCLUSIONS During Draf III, the posterior edge of the NFB was a reliable landmark for avoiding iatrogenic CSF leak during the superior septectomy.
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Affiliation(s)
- John R Craig
- Department of Otolaryngology, Henry Ford Hospital, Detroit, Michigan, USA
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Weber RK, Hosemann W. Comprehensive review on endonasal endoscopic sinus surgery. GMS CURRENT TOPICS IN OTORHINOLARYNGOLOGY, HEAD AND NECK SURGERY 2015; 14:Doc08. [PMID: 26770282 PMCID: PMC4702057 DOI: 10.3205/cto000123] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Endonasal endoscopic sinus surgery is the standard procedure for surgery of most paranasal sinus diseases. Appropriate frame conditions provided, the respective procedures are safe and successful. These prerequisites encompass appropriate technical equipment, anatomical oriented surgical technique, proper patient selection, and individually adapted extent of surgery. The range of endonasal sinus operations has dramatically increased during the last 20 years and reaches from partial uncinectomy to pansinus surgery with extended surgery of the frontal (Draf type III), maxillary (grade 3-4, medial maxillectomy, prelacrimal approach) and sphenoid sinus. In addition there are operations outside and beyond the paranasal sinuses. The development of surgical technique is still constantly evolving. This article gives a comprehensive review on the most recent state of the art in endoscopic sinus surgery according to the literature with the following aspects: principles and fundamentals, surgical techniques, indications, outcome, postoperative care, nasal packing and stents, technical equipment.
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Affiliation(s)
- Rainer K. Weber
- Division of Paranasal Sinus and Skull Base Surgery, Traumatology, Department of Otorhinolaryngology, Municipal Hospital of Karlsruhe, Germany
- I-Sinus International Sinus Institute, Karlsruhe, Germany
| | - Werner Hosemann
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Greifswald, Germany
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Endoscopic Transseptal Approach to Frontal Sinus Disease. Indian J Otolaryngol Head Neck Surg 2015; 67:287-91. [PMID: 26405666 DOI: 10.1007/s12070-015-0879-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 06/24/2015] [Indexed: 10/23/2022] Open
Abstract
This paper describes an endoscopic transseptal approach to identify and access the frontal sinus and reviews the clinical cases. Between May 2004 and July 2010, endoscopic modified Lothrop procedure (EMLP) with transseptal approach was performed on sixteen patients. The indications for EMLP were complicated frontal sinusitis or cyst, revision surgery for failed frontal sinusotomy or Lynch procedure, or trauma cases. The first step of this procedure was to open a window in the bilateral anterior portion of the middle turbinates and nasal septum. The nasal septum, which could be observed through the window, should be the landmark of the midline during the surgery. A drill bur was raised up just behind the nasal bone along the midline of the nose. After the bilateral frontal sinuses and their posterior walls were confirmed, the interfrontal septum was removed superiorly. We reviewed the clinical records of patients who underwent the EMLP with transseptal approach. We have managed sixteen patients in this fashion. Neither intracranial nor orbital complications were encountered during or after surgery. Endoscopic transseptal frontal sinus surgery is simple to perform, and does not cause severe complications.
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Askar MH, Gamea A, Tomoum MO, Elsherif HS, Ebert C, Senior BA. Endoscopic Management of Chronic Frontal Sinusitis: Prospective Quality of Life Analysis. Ann Otol Rhinol Laryngol 2015; 124:638-48. [PMID: 25736024 DOI: 10.1177/0003489415573959] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Previous studies of endoscopic frontal sinus surgery have been primarily retrospective and focused on symptom relief only. OBJECTIVES To prospectively assess the impact of endoscopic frontal sinus surgery on frontal sinus ostium patency and disease-specific quality of life as measured by the Rhinosinusitis Disability Index (RSDI). STUDY DESIGN A 60-patient cohort with chronic frontal sinusitis (100 diseased frontal sinuses) was prospectively evaluated using the RSDI, computed tomography (CT) imaging, and endoscopic examination. Image-guided endoscopic frontal sinusotomy (Draf 2a) was performed in each case. Patients were assessed with RSDI and endoscopic assessment at least 6 months postoperatively. RESULTS At a mean follow-up of 10 months, endoscopic assessment revealed patent frontal recesses in 90 of 100 frontal sinuses (90%), with significant improvement in the total RSDI score (41.98 ± 26.48 preoperatively to 17.15 ± 15.66 postoperatively) as well as each of its physical, emotional, and functional subscales from 16.3 ± 9.03, 12.23 ± 10.55, 13.45 ± 9.59 preoperatively to 5.95 ± 5.71, 5.55 ± 5.66, 5.65 ± 5.72 postoperatively, respectively. Similar improvement was seen in patients with asthma, polyps, and those undergoing revision sinus surgeries. CONCLUSIONS With frontal recess mucosal preservation and meticulous postoperative endoscopic surveillance, endoscopic frontal sinusotomy results in high rates of frontal sinus ostium patency with significant improvement in quality of life.
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Affiliation(s)
- Mohamed H Askar
- Tanta University, Otolaryngology/Head and Neck Surgery, Tanta, El-Gharbiya, Egypt
| | - Ahmed Gamea
- Tanta University, Otolaryngology/Head and Neck Surgery, Tanta, El-Gharbiya, Egypt
| | - Mohamed O Tomoum
- Tanta University, Otolaryngology/Head and Neck Surgery, Tanta, El-Gharbiya, Egypt University of North Carolina at Chapel Hill, Otolaryngology/Head and Neck Surgery, Chapel Hill, NC, USA
| | - Hossam S Elsherif
- Tanta University, Otolaryngology/Head and Neck Surgery, Tanta, El-Gharbiya, Egypt
| | - Charles Ebert
- University of North Carolina at Chapel Hill, Otolaryngology/Head and Neck Surgery, Chapel Hill, NC, USA
| | - Brent A Senior
- University of North Carolina at Chapel Hill, Otolaryngology/Head and Neck Surgery, Chapel Hill, NC, USA
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Chin D, Snidvongs K, Kalish L, Sacks R, Harvey RJ. The outside-in approach to the modified endoscopic Lothrop procedure. Laryngoscope 2012; 122:1661-9. [PMID: 22549820 DOI: 10.1002/lary.23319] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 02/06/2012] [Accepted: 02/29/2012] [Indexed: 11/07/2022]
Abstract
OBJECTIVES/HYPOTHESIS Drilling in modified endoscopic Lothrop procedure (MELP) is traditionally described as commencing from the frontal recess (FR). This is challenging when the FR is involved by tumor, inflammatory disease, or scarring. The outside-in MELP, where the limits of the sinusotomy are first defined and the FR is addressed last, is described. STUDY DESIGN Case-control study. METHODS Patients undergoing MELP, using the standard or outside-in approach, for inflammatory disease or endoscopic skull base surgery were assessed. Data were collected on demographics, disease characteristics, and FR involvement. Operative time was calculated from intraoperative video recording. Time points recorded were times to frontal sinus and recess connected for outside-in MELP and completion of Lothrop cavity for both groups. Perioperative complications (infection, skin breach or contusion, surgical emphysema, orbital bleeding, cerebrospinal fluid leak, and intracranial complications) were recorded. RESULTS Thirty patients (67% female) with a mean age ± standard deviation of 56.0 ± 10.8 years underwent MELP (24 outside-in, six standard). Time for Lothrop completion was shorter for outside-in MELP (30.60 ± 14.10 minutes vs. 69.66 ± 64.52 minutes, P = .002). Among outside-in MELP, mean time to frontal sinus floor discovery was 8.41 ± 6.29 minutes, to recess connected 26.50 ± 12.45 minutes, and were similar regardless of pathology. The time for Lothrop cavity completion was shorter for tumor cases (24.63 ± 6.49 minutes) than for chronic rhinosinusitis without polyps (35.87 ± 20.18 minutes) and chronic rhinosinusitis with polyps (34.62 ± 11.56 minutes) (P = .05). One patient had skin edema. No other complications were recorded. CONCLUSIONS The outside-in MELP is technically feasible and safe. Its advantage is a wide approach to the frontal sinus with development of the Lothrop cavity en route resulting in short predictable operative times. Defining the limits of the dissection early provides a robust and efficient approach.
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Affiliation(s)
- David Chin
- Division of Rhinology, Skull Base Surgery, St. Vincent's Hospital, Sydney, Australia.
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Eloy JA, Friedel ME, Kuperan AB, Govindaraj S, Folbe AJ, Liu JK. Modified mini-Lothrop/extended Draf IIB procedure for contralateral frontal sinus disease: a cadaveric feasibility study. Otolaryngol Head Neck Surg 2011; 146:165-8. [PMID: 21825097 DOI: 10.1177/0194599811418043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Jean Anderson Eloy
- Department of Otolaryngology-Head & Neck Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey, USA.
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Silverman JB, Prasittivatechakool K, Busaba NY. An evidence-based review of endoscopic frontal sinus surgery. Am J Rhinol Allergy 2010; 23:e59-62. [PMID: 19958599 DOI: 10.2500/ajra.2009.23.3406] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Endoscopic approaches to treat frontal sinus disease gained in popularity over the past 20 years with a plethora of published studies that emphasize the high success rate of such surgeries. This study was designed to determine the levels of clinical evidence in the otolaryngology literature that address the efficacy of endoscopic approaches in the management of frontal sinus disease including frontal sinusitis. METHODS Twenty-three publications that reported the surgical outcomes of endoscopic approaches to treat frontal sinus disease were reviewed. Data were collected regarding the study design, operative technique, number of patients, duration of follow-up, diagnostic method, surgical success rate, and method(s) used to assess surgical outcome. RESULTS The study designs were a retrospective case series without control (16 articles), prospective case series without control (3 articles), and retrospective case series with internal control (4 articles). Eighty-three percent of the published articles provide an evidence level of IV, while the remaining 17% provide an evidence level of III. The surgical technique was described as frontal sinusotomy (n = 4), frontal sinusotomy or frontal sinus drillout (n = 1), frontal sinus drillout alone (n = 1), endoscopic modified Lothrop procedure (n = 9), Draf types I, II, or III (n = 6); trans-septal frontal sinusotomy (n = 1); and frontal sinus rescue procedure (n = 1). The mean number of subjects was 44, and the average follow-up period was 23.6 months. Surgical success rate ranged from 50 to 100%. CONCLUSION Despite the number of reports in the literature that address the surgical outcome of endoscopic approaches for treatment of frontal sinus disease, the majority of these studies have a small population size, short follow-up period, and provide a low clinical evidence level.
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Affiliation(s)
- Joshua B Silverman
- Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts 02114, USA
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[Endonasal frontal sinus surgery. Part 2: Frontal sinus drainage type III (median drainage), tips and tricks, postoperative care]. HNO 2009; 57:751-62. [PMID: 19517082 DOI: 10.1007/s00106-008-1752-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In Part 2 of our concept of frontal sinus surgery, we explain type III drainage (median drainage or modified Lothrop procedure) and technical details including the application of nasal packing, mitomycin C, mucosal transplants, and silicone foils or stents. Special aspects of postoperative care are highlighted. Specific instrumentation and endoscopic equipment are highly recommended.
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Abstract
PURPOSE OF REVIEW Many of the successes and controversies in endoscopic management of craniofacial trauma are exemplified in the management of frontal sinus trauma. RECENT FINDINGS The effort to reduce surgical morbidity and to optimize reconstruction of craniomaxillofacial injuries has resulted in the development of less invasive surgical approaches and in the use of computer image guidance in surgical planning and execution. Minimally invasive management of frontal sinus inflammatory disease has gained wide acceptance. The technology and techniques applied to surgery of the floor of the frontal sinus is now being applied to the management of frontal sinus trauma. A paradigm shift in the treatment of frontal sinus trauma may be underway. SUMMARY An increasing scope of less severe injuries is being managed expectantly with endoscopic frontal sinus surgery available for salvage. There may be an overall decrease in the most severe frontal sinus injuries owing to enforcement of seatbelt and airbag usage. And the most severe injuries are often best managed through cranialization with anterior skull base reconstruction. Thus, the role for frontal sinus obliteration purely to obviate fractures of the frontal sinus outflow tract may be vanishing.
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Cohen AN, Wang MB. Minitrephination as an adjunctive measure in the endoscopic management of complex frontal sinus disease. ACTA ACUST UNITED AC 2008; 21:629-36. [PMID: 17999804 DOI: 10.2500/ajr.2007.21.3083] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Frontal sinus disease and its surgical management continues to remain an area of controversy among rhinologists. This is evidenced by the multitude of surgical procedures, both external and endoscopic, that have been developed in its management. This study was performed to evaluate the safety and efficacy of frontal sinus minitrephination in combination with endoscopic frontal sinus exploration for the management of complex frontal sinus disease. METHODS A retrospective chart review identified 13 patients treated with minitrephination, in conjunction with endoscopic frontal sinus exploration, at the University of California at Los Angeles Medical Center or West Los Angeles VA Medical Center from July 2004 to October 2005. RESULTS Thirteen patients with diagnoses of chronic sinusitis (n = 10), nasal polyposis (n = 7), frontal mucocele (n = 4), allergic fungal sinusitis (n = 3), and inverting papilloma (n = 1) underwent either unilateral (n = 9) or bilateral (n = 4) minitrephination during primary or revision functional endoscopic sinus surgery. Median follow-up was 14.2 months. There were no complications attributed to the procedure, and all patients had improvement of their sinus symptoms and displayed no evidence of recurrence of their frontal sinus disease at last follow-up. CONCLUSION Minitrephination is a safe and effective adjunct in the management of complex frontal sinus disease, as it allows identification of the frontal recess and vigorous irrigation of the sinus contents.
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Affiliation(s)
- Alen N Cohen
- Division of Head and Neck Surgery, Department of Surgery, David Geffen School of Medicine at University of California at Los Angeles, Los Angeles, California 90095-1624, USA
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Batra PS, Cannady SB, Lanza DC. Surgical Outcomes of Drillout Procedures for Complex Frontal Sinus Pathology. Laryngoscope 2007; 117:927-31. [PMID: 17473698 DOI: 10.1097/mlg.0b013e31803dd2ee] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The purpose of this report is two-fold: 1) to determine the incidence and 2) to determine the efficacy of drillout procedures in the management of frontal sinus disease in a tertiary rhinology practice. STUDY DESIGN Retrospective data analysis. METHODS Chart review was performed for all patients undergoing frontal sinus surgery from May 1999 to April 2004. The incidence of drillout surgery was determined. Demographic data, symptomatology, type of drillout procedure, and primary pathology were determined. Postoperative outcome was assessed based on subjective symptomatology and objective endoscopic patency. RESULTS A total of 186 patients underwent 207 frontal sinus procedures during this time period; 25 patients (13.4%) required a total of 30 (14.5%) drillout procedures. The patient population had previously undergone an average of 3.2 procedures; four cases were primary and 26 were revision procedures. The breakdown of the procedures was as follows: Draf III, 17; Draf IIB, 7; and transseptal frontal sinusotomy, 6. The major indications included mucoceles (11 cases), chronic frontal sinusitis (6 cases), and tumors (5 cases). Postoperatively, presenting symptomatology resolved in 32%, improved in 56%, and remained unchanged in 12% of the patients. Endoscopic patency of the neo-ostium was noted in 23 cases (92%). Average follow-up was 16.3 months. CONCLUSIONS In this series, drillout procedures were successfully used in 25 patients as an important adjunct to the standard endoscopic techniques for management of complex frontal sinus disease. Because the procedure was used only 30 times during a 5-year period, it was reserved for specific circumstances in carefully selected patients.
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Affiliation(s)
- Pete S Batra
- Section of Nasal and Sinus Disorders, Head and Neck Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
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Banhiran W, Sargi Z, Collins W, Kaza S, Casiano R. Long-term effect of stenting after an endoscopic modified Lothrop procedure. ACTA ACUST UNITED AC 2007; 20:595-9. [PMID: 17181100 DOI: 10.2500/ajr.2006.20.2912] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND The aim of this study was to study the effect of stenting with a silastic sheet on the long-term patency of the common frontal ostium after an endoscopic modified Lothrop procedure (EMLP). METHODS A retrospective analysis was performed of prospectively collected data at an academic tertiary referral center, where 72 patients underwent an EMLP between 1996 and 2003. Patency of the common frontal ostium was studied as an ordinal variable with three classes (patent, stenotic, and closed). RESULTS A common ostium was endoscopically visualized in 94% of the patients (61.1% patent and 33.3% stenotic). Symptoms improved in 75% of the patients. A significant positive correlation was found between ostium patency and symptom improvement. Twenty-five patients were stented postoperatively. There was no statistical difference between the stented and the nonstented groups with regards to ostium patency and symptoms improvement. CONCLUSION Short-term stenting does not appear to reduce the rate of postoperative stenosis of the common frontal ostium after an EMLP.
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Affiliation(s)
- Wish Banhiran
- Department of Otolaryngology, University of Miami-Leonard Miller School of Medicine, Miami, Florida, USA
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22
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Abstract
Patients with recurrent chronic sinusitis after prior surgical intervention pose a particular challenge to the otorhinolaryngologist. Establishing a correct diagnosis is the first step and requires review of the original presurgical symptoms and imaging; review of the more recent symptoms and images;and reevaluation of environmental, general, and local host factors that may contribute to persistent disease. Although primary chronic rhinosinusitis is typically a medical disease, postsurgical persistent disease may result directly from iatrogenic causes, requiring early surgical revision. Even in this setting, however, proper preoperative medical therapy is essential. Diagnostic evaluation should include meticulous endoscopic evaluation and appropriate radiologic studies. CT typically is required in the coronal and axial planes and ideally is performed using a computer-assisted surgical navigation protocol and with reconstructions in the sagittal plane, allowing for "scrolling" through the altered anatomy and conceptualizing the surgical issues at hand. When the decision to undergo revision surgery is made, the patient and the physician need to comprehend the rigorous and prolonged schedule of postoperative care and débridements that may be required for long-term success. Appropriate surgical technique emphasizing mucosal preservation and complete dissection must be adhered to. The surgeon must be aware that bony thickening is likely to be present and to make the dissection significantly more difficult than in the primary case. Medical management and endoscopic surveillance postoperatively is continued until a stable cavity is achieved.
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Affiliation(s)
- Noam A Cohen
- Division of Rhinology, Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania School of Medicine, Hospital of the University of Pennsylvania,Philadelphia, PA 19104, USA
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Abstract
PURPOSE OF REVIEW Recurrent or persistent frontal sinus disease after endoscopic sinus surgery poses formidable challenges owing to the frontal sinus outflow tract's complex variable anatomy, close proximity to vital structures, and predilection for scarring and stenosis. Frontal sinus obliteration used to be the preferred technique of most sinus surgeons for addressing difficult frontal sinus disease; however, several effective endoscopic techniques exist as excellent alternative procedures for addressing this difficult clinical problem. RECENT FINDINGS Several endoscopic techniques have been described for addressing these problems including endoscopic frontal sinusotomy, the frontal sinus rescue procedure, endoscopic transseptal frontal sinusotomy, and the modified Lothrop procedure. Advances in treating recurrent frontal sinus disease have included recent articles reviewing the long-term outcomes of some of these techniques, the prevalence of frontal sinus cells, the optimization of medical management, and the spectrum of postoperative debridement regimens. SUMMARY When used in the appropriate setting, these less invasive revision endoscopic techniques provide excellent results with low morbidity and several advantages. This article reviews recent developments in the treatment of recurrent or persistent frontal sinus disease including incorporation of these techniques.
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Affiliation(s)
- Robert E Sonnenburg
- Department of Otolaryngology-Head and Neck Surgery, University of North Carolina, Chapel Hill 27599-7070, USA
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24
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Abstract
OBJECTIVES/HYPOTHESIS Until recent years, the osteoplastic flap with frontal sinus obliteration has been the gold standard for recalcitrant frontal sinusitis. The present series evaluated the role of the endoscopic modified Lothrop procedure, which has recently been advocated as an alternative. STUDY DESIGN Prospective non-randomized interventional case series. METHODS The study prospectively assessed 83 consecutive patients who underwent endoscopic modified Lothrop procedure. The mean age was 52.4 years (SD = 13.6 y) with a male-to-female ratio of 3:1. Patients had a mean of six previous sinus surgical procedures with 17 patients having undergone previous frontal sinus obliteration with mucocele formation. Seventy-six patients (91%) had frontal pain or headache as their primary presenting symptom, with 72 having nasal discharge. There were 14 patients who presented with 17 complications of frontal sinus disease. There were eight erosions of the posterior table of the frontal sinus with extension of the mucocele intracranially, seven orbital complications, and one cerebrospinal fluid leak. Twenty-four patients (30%) had fungus cultured from their sinuses at the time of surgery. RESULTS Six of the 83 patients (7%) developed frontal ostium stenosis resulting in a 93% primary success rate after an average follow-up of 21.9 months (SD = 6.1 mo). These patients all underwent a revision modified Lothrop procedure and had a patent frontal ostium at their last review. Twenty-one patients (25%) developed recurrent symptoms, which were managed medically. Of these 21 patients, 9 with previously diagnosed fungal sinusitis developed mucosal changes again in their frontal sinuses, but their ostia have remained patent. Four patients have had recurrent infections in the frontal sinuses, and three patients with aspirin-sensitive asthma and polyps have developed polyps again in their frontal sinuses. Five patients continued to have frontal pain without radiological evidence of further frontal disease. No patients required an osteoplastic flap procedure. CONCLUSION The endoscopic Lothrop procedure is a successful short-term management option for recalcitrant and complicated frontal sinusitis caused by a wide range of diseases.
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Affiliation(s)
- Peter John Wormald
- Department of Surgery, Section of Otolaryngology Head and Neck Surgery, Adelaide and Flinders Universities, Adelaide, South Australia, Australia.
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Smith TL, Han JK, Loehrl TA, Rhee JS. Endoscopic management of the frontal recess in frontal sinus fractures: a shift in the paradigm? Laryngoscope 2002; 112:784-90. [PMID: 12150607 DOI: 10.1097/00005537-200205000-00004] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate alternative management strategies for anterior table frontal sinus fractures involving the frontal sinus outflow tract. STUDY DESIGN A prospective cohort of patients with anterior table frontal sinus fracture with frontal outflow tract involvement documented by computed tomography (CT) scan was examined between 1999 and 2001. METHODS A select group of patients with anterior table frontal sinus fracture involving the frontal outflow tract was treated with open reduction of bony fracture without osteoplastic obliteration of the frontal sinus. Serial CT scans were obtained starting at 8 weeks after injury. Patients with persistent frontal sinus obstruction after medical treatment underwent an extended endoscopic frontal sinusotomy or a modified endoscopic Lothrop procedure. RESULTS Fourteen patients sustained frontal sinus fractures and were treated during the study period. Seven patients were included in the modified treatment algorithm, with a mean follow-up of 18 months. All patients had concurrent facial fractures: superior orbital rim (n = 5), naso-orbital-ethmoid complex (n = 2), mandible (n = 2), and midface (n = 2). All 7 patients underwent open repair of the facial fractures. Postoperatively, 5 patients had spontaneous frontal sinus ventilation. Two patients, both of whom had naso-orbito-ethmoid fractures, had persistent frontal sinus obstruction clinically and radiographically. These patients were successfully managed with an endoscopic frontal sinus procedure. CONCLUSIONS A select group of patients with frontal sinus and outflow tract fracture may be managed with open repair of the anterior table fracture without obliteration. In these cases, suspected frontal outflow tract obstruction can be managed expectantly. Failed frontal sinus ventilation may require endoscopic frontal sinus surgery to reestablish mucociliary clearance.
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Affiliation(s)
- Timothy L Smith
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee 53226, USA.
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Affiliation(s)
- C W Gross
- Department of Otolaryngology-Head and Neck Surgery, University of Virginia Health Sciences Center, Charlottesville, Virginia 22908-0713, USA
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Lanza DC, McLaughlin RB, Hwang PH. The five year experience with endoscopic trans-septal frontal sinusotomy. Otolaryngol Clin North Am 2001; 34:139-52. [PMID: 11344069 DOI: 10.1016/s0030-6665(05)70302-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Endoscopic trans-septal frontal sinusotomy (TSFS) represents a unique surgical approach to the floor of the frontal sinus. Although the final result can have similarities to the modified Lothrop procedure in that the intersinus septum may be drilled out, endoscopic TSFS represents a novel approach that can be valuable in patients with certain anatomic configurations. Endoscopic TSFS represents an alternate approach to the frontal sinus that may be used by the experienced endoscopist to augment treatment of refractory frontal sinus disease. This procedure is best considered for patients with favorable anatomy who have significant frontal sinus disease and cannot be managed adequately through an endoscopic frontal sinusotomy.
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Affiliation(s)
- D C Lanza
- Section of Nasal and Sinus Disorders, Department of Otolaryngology and Communicative Disorders, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA
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Abstract
Despite the enormous number of external and endonasal surgical techniques described for the treatment of frontal sinus disease, a single time-proven technique has yet to be obtained. The purpose of this article is to critically evaluate the lessons of more than a century of endonasal and external procedures. The past has taught us a cautionary lesson for the surgical management of chronic frontal sinus disease, respect for the severity of iatrogenic disease caused by surgical trauma, and the need for long-term follow-up before embracing any new technique to treat this notoriously difficult clinical problem.
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Affiliation(s)
- R B McLaughlin
- Aesthetic Surgery Services, Kaiser Permanente Hospital System, 2025 Morse Avenue, Sacramento, CA 95825, USA
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