Τρίτη 27 Ιουλίου 2021

Comparative Efficacy of Transsphenoidal Endonasal Endoscopic and Microscopic Pituitary Surgery at Single Center of a Developing Country

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e88-e93. doi: 10.1055/s-0039-3402041. Epub 2020 Feb 3.

ABSTRACT

Objective This study was aimed to compare comparative efficacy of transsphenoidal endonasal endoscopic and microscopic pituitary surgery at single center of a developing country. Methods This study included 198 patients in which 50 patients were studied prospectively and 148 patients were studied retrospectively, diagnosed with pituitary adenoma who presented to neurosurgery department at Sawai Man Singh hospital in Jaipur, India, and were operated via transsphenoidal route between 2013 and 2018. Patients' records were reviewed and relevant clinical and surgical data were collected. Patients were divided into two groups based on the surgical procedure performed, endoscopic endonasal transsphenoid approach (group 1) and microscopic transsphenoidal approach (group 2). Outcomes, in terms of efficacy and the resulting com plications of each procedure were compared and analyzed. Results A total of 198 patients with pituitary adenoma were operated during the study period. Among them, 119 (60.1%) patients were operated by endoscopic and 79 (39.9%) patients were operated by microscopic transsphenoidal approach. In endoscopic group, intraoperative cerebrospinal fluid (CSF) leak was present in 39 patients (32.77%) and 23 (29.11%) in microscopic group. Complete tumor removal was achieved in 69.75% in endoscopic and 48.13% in microscopic group ( p = 0.004). Endocrine control was achieved in 78.94% (30 out of 38) in endoscopic and 68.18% (15 out of 22 patients) in microscopic group. Conclusion The transsphenoidal approaches for resection of pituitary adenoma, both endoscopic and microscopic approach, are minimally invasive and effective for disease control. Both the approaches lead to similar endocrine control, visual symptoms, complications, and long-term outcome. Therefore, the selectio n of the final approach should be individualized, ultimately depending on the surgeons' comfort, experience, and familiarity with the particular technique.

PMID:34306921 | PMC:PMC8289506 | DOI:10.1055/s-0039-3402041

View on the web

Endonasal Endoscopic Fenestration of Rathke's Cleft Cysts: Whether to Leave the Fenestration Open or Closed?

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e101-e104. doi: 10.1055/s-0039-3402042. Epub 2019 Dec 23.

ABSTRACT

Introduction Rathke's cleft cysts (RCC) are generally treated with transsphenoidal fenestration and cyst drainage. If no cerebrospinal fluid (CSF) leak is created, the fenestration can be left open. If CSF is encountered, a watertight closure must be created to prevent postoperative CSF leak, though sellar closure has theoretically been linked with higher recurrence rate. In this study, we investigate the relationship between sellar closure, rate of postoperative CSF leak, and RCC recurrence. Methods Retrospective review of a prospective database of all endoscopic endonasal RCC fenestrations and cases were divided based on closure. The "open" group included patients who underwent fenestration of the RCC, whereas the "closed" group included patients whose RCC was treated with fat and a rigid buttress ± a nasoseptal flap. The rate of intra- and postoperative CSF leak and radiographic recurrence was determined. Results The closed group had a higher rate of suprasellar extension (odds ratio [OR]: 8.0, p = 0.032) and intraoperative CSF leak ( p ≤ 0.001). There were 54.8% intraoperative CSF leaks and no postoperative CSF leaks. Radiologic recurrence rate for the closed group (35.0%) was three times higher than the open group (9.1%; risk ratio [RR] = 3.85, p = 0.203), but not powered to show significance. None of the radiologic recurrences required reoperation. Conclusion Maintaining a patent fenestration between an RCC and the sphenoid sinus is important in reducing the rate of radiographic recurrence. Closure of the fenestration may be required to prevent CSF leak. While closure increases the rate of radiographic recurrence, reoperation for recurrent RCC is still an uncommon event.

PMID:34306923 | PMC:PMC8289525 | DOI:10.1055/s-0039-3402042

View on the web

Endoscopic Adipofascial Radial Forearm Free Flap Reconstruction of the Skull Base: A Technical Update

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e243-e247. doi: 10.1055/s-0040-1710327. Epub 2020 May 15.

ABSTRACT

Objective While most defects after endoscopic endonasal resections can be closed with local or locoregional options, rare cases require free tissue transfer. In this setting, while minimally invasive techniques have been described, the essential procedural details are lacking. The objective of this report is to describe several key technical modifications to free flap harvest and endoscopic-assisted inset which decrease morbidity and improve reliability and efficiency. Methods A retrospective chart review was performed of consecutive patients treated at Washington University in St. Louis with endoscopic free flap reconstruction through a Caldwell-Luc/transbuccal approach between January 2016 and September 2019. Results A total of six patients underwent adipofascial radial forearm free flap with this techniqu e, five for recalcitrant cerebrospinal fluid leak or pneumocephalus and one for osteoradionecrosis. All flaps survived and there were no flap-related complications. Five patients (83%) achieved successful healing and separation of the sinonasal cavity and intracranial space. One patient developed recurrent pneumocephalus. Three key technical modifications were identified that improve efficiency and reliability of flap delivery and inset: (1) use of an adipofascial radial forearm flap, without skin paddle; (2) wide resection of the anterior and lateral maxillary face to facilitate flap delivery; and (3) precise defect measurement and flap contouring prior to inset to prevent any need to debulk the flap in situ. Conclusion Endoscopic adipofascial radial forearm free flap delivered to the skull base through a Caldwell-Luc/transbuccal corridor is a feasible option with a high success rate and low morbidity when other reconstructive attempts have failed.

PMID:34306945 | PMC:PMC8289511 | DOI:10.1055/s-0040-1710327

View on the web

Orbitozygomatic Craniotomy via an Eyebrow Incision: Management of the Opened Frontal Sinus

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e190-e195. doi: 10.1055/s-0039-3402025. Epub 2020 Jan 24.

ABSTRACT

Background The eyebrow orbitozygomatic craniotomy is a minimally invasive approach that can access a wide variety of lesions. Unintentional breach of the frontal sinus frequently occurs and has been cited as a reason to avoid this approach. Lack of access to a large pericranial graft and the inability to completely cranialize the sinus requires alternate techniques of sinus repair. We describe a technique for repairing an opened frontal sinus and retrospectively reviewed complications related to this approach. Methods All patients, who underwent an orbitozygomatic craniotomy via an eyebrow incision by a single surgeon from August 1, 2012 to August 31, 2018, were included in this retrospective analysis. Data were collected on patient demographics, pathology treated, operative details, and perioperative morbidity. Fo llow-up ranged from 6 weeks to 6 years. Results Total 50 patients with a wide variety of pathologies underwent analysis. Frontal sinus breach occurred in 21 patients. All were repaired by the described technique. One patient (ruptured aneurysm) had a suspected cerebrospinal fluid (CSF) leak postoperatively that resolved without any additional intervention. One patient developed a pneumomeningocele 4 years postoperatively that required reoperation. No patient suffered any infection or delayed CSF leak. Conclusion Breach of the frontal sinus is common during eyebrow craniotomies. Despite reduced options for local repair, these patients have experienced no CSF leaks requiring intervention and no infections in our series. Long-term mucocele risk is not reliably determined with our length of follow-up. Breach of the frontal sinus is not a contraindication to the eyebrow approach.

PMID:34306936 | PMC:PMC8289512 | DOI:10.1055/s-0039-3402025

View on the web

Skull Base Reconstruction with Multilayered Fascia Lata: A Single-Center 17 Years Experience

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e217-e223. doi: 10.1055/s-0039-3402013. Epub 2020 Jan 8.

ABSTRACT

Objective Reconstruction after open surgery of anterior skull base lesions is challenging. The fascia lata graft is our workhorse for achieving dural sealing and preventing cerebrospinal fluid leak and meningitis. This study seeks to analyze the donor and recipient site complication rates after fascia lata reconstruction. Methods This is a retrospective review of all open anterior skull base operations in which a double-layer fascia lata graft was used for the reconstruction of the defect from 2000 to 2016 at the Tel-Aviv Sourasky Medical Center, a tertiary referral center in Israel. Results Of the 369 patients operated for skull base lesions, 119 underwent open anterior skull base surgery and were reconstructed with a fascia lata graft. The patients' mean age was 47.1 years, and 68 (57.1%) were males. The ov erall postoperative early and late donor site complication rates were 6.7% ( n = 8) and 5.9% ( n = 7), respectively. Multivariate analysis found minor comorbidities and persistent/recurrent disease as being predictors for early-term complications. The overall postoperative early central nervous system (CNS) complication rate was 21.8% ( n = 26), while 12.6% ( n = 15) of the patients had late postoperative CNS complications. Conclusion Reconstruction of open anterior skull base lesions with fascia lata grafting is a safe procedure with acceptable complication and donor site morbidity rates.

PMID:34306941 | PMC:PMC8289493 | DOI:10.1055/s-0039-3402013

View on the web

A Simple Onlay Sellar Reconstruction Does Not Increase the Risk of Postoperative Cerebrospinal Fluid Leak in Well-Selected Patients

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e231-e235. doi: 10.1055/s-0039-3402000. Epub 2020 Jan 8.

ABSTRACT

Objective A variety of endonasal sellar repair techniques have been described; many of which are complex, expensive, and carry potential morbidity but are felt to be necessary to prevent postoperative cerebrospinal fluid (CSF) leaks. We propose an effective, technically simple repair for select sellar defects utilizing an onlay of regenerated oxidized cellulose. Design Retrospective review of patients from a single neurosurgeon who underwent endoscopic transsphenoidal surgery for pituitary adenoma and sellar reconstruction with only an onlay of regenerated oxidized cellulose. Patients were selected for this repair technique based on the absence of: (1) intraoperative identification of a CSF leak, (2) patulous diaphragm (expanded diaphragm sella herniating to or through sellar floor defect), and (3) other prohibiting comorbidities. Setting The present study was conducted at a tertiary care center. Participants In this study, pituitary adenoma patients were the participants. Outcome Measures Main outcome measure of the study is postoperative CSF leak. Results A total of 172 patients were identified. Of these, 153 were initial resections of pituitary adenomas. Gross total resection was achieved in 142 (82.6%) cases. Average tumor size was 2.2 ± 1.1 cm. Average tumor volume was 10.4 ± 19.8 cm 3 . No patients had intraoperative CSF leaks. All cases were repaired with only an onlay of regenerated oxidized cellulose. There were two postoperative CSF leaks (1.16%). Pre and postoperative SNOT-22 scores were 12.9 ± 11.9 and 14.3 ± 14.9 ( p = 0.796), respectively. Conclusion The use of an onlay of regenerated oxidized cellulose alone is an effective repair technique for select sellar defects. This technique does not result in increased postoperativ e CSF leak rates and avoids the higher relative cost and potential morbidity associated with more complex, multilayered closures.

PMID:34306943 | PMC:PMC8289556 | DOI:10.1055/s-0039-3402000

View on the web

Outcomes of Transzygomatic Middle Cranial Fossa Approach for Skull Base Tumors-A Single Institutional Experience

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e205-e210. doi: 10.1055/s-0040-1708881. Epub 2020 Mar 28.

ABSTRACT

Objective This study aimed to evaluate surgical outcomes after transzygomatic middle cranial fossa (MCF) (TZ-MCF) approach for tumor control in patients with large skull base lesions involving the MCF and adjacent sites. Setting This study was done at the tertiary skull base center. Design This is a retrospective case series. Main Outcome Measures The main outcome measures were tumor control (recurrence), new-onset cranial neuropathies, facial nerve and audiometric outcomes, cerebrospinal fluid (CSF) leak, and wound complications. Results Sixteen patients were identified with a median age of 45 years (range: 20-72). The mean maximum tumor dimension was 5.49 cm (standard deviation [SD]: 1.2, range: 3.1-7.3) and the mean tumor volume was 28.5 cm 3 (SD: 18.8, range: 2.9-63.8). Ten (62.5 %) tumors were left sided. The most common pathology encountered was meningioma ( n = 7) followed by chondrosarcoma ( n = 4). Mean follow-up was 36.3 (SD: 26.9) months. Gross total resection or near total resection was achieved in nine (56.2%) and planned subtotal resection was used in seven (43.7%). Postoperative additional new cranial nerve (CN) deficits included CN V ( n = 1), CN III ( n = 2), CN VI ( n = 1), and CN X ( n = 1). Major neurological morbidity (hemiplegia) was encountered in two patients with resolution. There were no cases of CSF leak, meningitis, hemorrhage, seizures, aphasia, or death. There was no recurrence or regrowth of residual tumor. Facial nerve function was preserved in all but one patient (House-Brackmann grade 2). Conclusion Various skull base tumors involving MCF with extension to adjacent sites can be successfully resected using the TZ-MCF approach in a multidisciplinary fashion. This approach yields opt imal exposure and permits excellent tumor control with acceptable CN and neurological morbidity.

PMID:34306939 | PMC:PMC8289522 | DOI:10.1055/s-0040-1708881

View on the web

A Systematic Review of Closure Techniques in Lateral Skull Base Tumor Surgery

xlomafota13 shared this article with you from Inoreader

J Neurol Surg B Skull Base. 2021 Jul;82(Suppl 3):e224-e230. doi: 10.1055/s-0040-1701673. Epub 2020 May 19.

ABSTRACT

Introduction Tumors of the lateral skull base often require collaboration between neurosurgeons and neurotologists for the surgical approach. The three main transosseous surgical approaches are retrosigmoid (RS), translabyrinthine (TL), and middle fossa (MF). The literature reflects a relative paucity regarding the various closure techniques for these approaches and the postoperative complications. We have performed a systematic review comparing closure techniques from each approach. Methods A systematic review was performed using Ovid MEDLINE (1990-2016) on closure technique and postoperative complications for patients undergoing lateral skull base surgery via the TL, RS, or MF approach. Studies were included if they contained at least 10 patients, described their closure technique, and provided data on postoperat ive complications. Results A total of 1,403 studies were reviewed. Of these, 53 studies met inclusion criteria yielding a total of 10,466 subjects in this analysis. The average rate of cerebrospinal fluid leak was 5.3% in the TL approach, 9% in the RS approach, and 6.2% in the MF approach. There was no significant effect of various closure techniques on postoperative wound complications in the MF approach. Multiple factors were identified which affected postoperative wound complication in the RS and TL approaches. Conclusion There are a plethora of closure techniques for lateral skull base surgery. Several techniques were identified in this review that may affect the postoperative wound complication rates in lateral skull base surgery.

PMID:34306942 | PMC:PMC8289505 | DOI:10.1055/s-0040-1701673

View on the web

Post-COVID-19 rhino-orbito-cerebral mucormycosis: a new addition to challenges in pandemic control

xlomafota13 shared this article with you from Inoreader

Eur Arch Otorhinolaryngol. 2021 Jul 26. doi: 10.1007/s00405-021-07010-1. Online ahead of print.

ABSTRACT

OBJECTIVE: To document and analyse demographic data, clinical presentation, possible interventions for early clinical detection and management of post-COVID-19 rhino-orbito-cerebral mucormycosis (ROCM).

METHOD: 32 patients having history of SARS-CoV-2 infection with features of ROCM were observed in terms of their history, presenting features, clinical, microbiological examination, type of surgical intervention, surgical sites of involvement which were subsequently analyzed.

RESULTS: The mean (± S.D.) age of patients was 57 ± 13 years. All patients were diabetic. Mean (± S.D.) time of onset of ROCM symptoms, since onset of COVID-19 symptoms was 18 (± 4) days. 12.5% patients were fully vaccinated. 78.1% patients received steroid therapy; 28.1% received high flow nasal oxygen. 87.5% patients had blurring of vision, 65. 62% headache, 59.37% cheek and eyelid swelling, 50% proptosis, 46.87% ophthalmoplegia, 40.62% ptosis, 40.62% loss of sensation over cheek, 25% orbital pain. Examination of specimen with KOH mount revealed Mucor spp. in all patients. 87.5% patients underwent endoscopic sinus surgery with debridement with/without orbital clearance; 56.25% maxillectomy; 25% orbital exenteration. 87.5% patients had paranasal sinus involvement, 43.75% orbit sparing orbital apex, 68.75% orbit with orbital apex. 81.25% patients had involvement of pterygopalatine fossa±infratemporal fossa. 50% patients had disease in Vidian canal and pterygoid wedge. 25% of patients had involvement of palate and 56.25% cheek and eyelid soft tissues.

CONCLUSION: A judicious COVID treatment protocol, high index of suspicion, close monitoring of high-risk patients and early institution of treatment can prevent case severity and reduce mortality.

PMID:34309754 | DOI:10.1007/s00405-021-07010-1

View on the web

Ten-year trends in the incidence of microtia: a nationwide population-based study from Taiwan

xlomafota13 shared this article with you from Inoreader

Eur Arch Otorhinolaryngol. 2021 Jul 26. doi: 10.1007/s00405-021-07014-x. Online ahead of print.

ABSTRACT

PURPOSE: Few studies have explored population-based incidence rates of microtia using nationwide data. The aim of this study was to analyze the 10-year secular trends in the incidence of microtia and/or anotia in Taiwan from 2008 to 2017 using nationwide population-based data.

METHODS: Patient data were retrieved from Taiwan's National Health Insurance Dataset, after identifying 1152 children aged ≤ 1 year with a first-time diagnosis of microtia or anotia between January 2008 and December 2017. The annual microtia-anotia incidence rate was the sum of new microtia-anotia cases in a year divided by total infant population in the year. Furthermore, we used the annual percent change (APC) to study the secular trend in microtia-anotia incidence rate.

RESULTS: The annual incidence rate of microtia-anotia averaged across the 10-year period was 57.7 per 100,000 infants (standard deviation = 8.6). The annual incidence rates of microtia and anotia were 53.3 and 4.4 per 100,000 infants, respectively, during this period. Furthermore, female infants had a higher incidence than males (63.3 vs. 52.4 per 100,000). The incidence of microtia-anotia gradually decreased between 2008 and 2017 with an APC of - 5.64% (95% CI - 9.31 ~ - 1.18%, p = 0.004). Since 2011, females had a significantly higher annual incidence rate of microtia-anotia than males.

CONCLUSIONS: The incidence of microtia-anotia was 57.7 per 100,000 infants in Taiwan, which declined during the study period 2008-2017. The female-to-male incidence ratio was 1.21:1.

PMID:34309752 | DOI:10.1007/s00405-021-07014-x

View on the web