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Pipkorn, Patrik

https://orcid.org/0000-0002-4118-7743

Mayo Clinic

Washington University in St. Louis

Citations 7

Fibula Free Flap Reconstruction of Cervical Spine Defects: A Multi‐Institutional Study
Yang, Sara , Morton, Zoey , Colcord, Maddie, Moore, Eric J. , Thuener, Jason E. , Bewley, Arnaud F. , Coughlin, Andrew, Richmon, Jeremy D. , Pipkorn, Patrik , Zender, Chad , Wax, Mark K. , Moore, Eric J , Thuener, Jason , Richmon, Jeremy D , Zender, Chad A , Wax, Mark K , Jackson, Ryan S. , Khariwala, Samir S , Winters, Ryan D. , Militsakh, Oleg N. , III, James M. Wright

The Laryngoscope | July 10, 2024 | Volume: 134 | Issue: 12 | Pages: 4923-4928

10.1002/lary.31625 Get It

IntroductionCervical spine defects result in spinal instability, putting the spinal cord and vertebral arteries at risk of damage and possibly devastating neurological injuries. The fibula free flap can span the spinal defects for stability. There is a paucity of literature on this technique.MethodMulti‐institutional retrospective case series reviewing patients who underwent cervical spine reconstruction with a fibula free flap. Patient demographic information, comorbidities, characteristics of cervical spine defects, and free flap complications were collected.ResultsA total of 1187 fibula free flaps across 10 different institutions were reviewed. Thirteen patients (1.09%) underwent cervical spine reconstruction with a fibula free flap. Average age was 52.3 years old with an age range of 12–79 years. There were six males (46.1%) and seven females (53.8%). The most common defect etiology was infection (n = 6, 46.1%). Most commonly involved cervical spine level of the defect was C5 (n = 10) followed by C6 (n = 9) and C4 (n = 8). The majority of reconstructed defects spanned three or more cervical levels, (n = 9, 69.2%). Facial artery was the most common arterial anastomosis (n = 8). Eight patients (61.5%) required a tracheostomy during their postoperative course. None of the patients had symptomatic or radiographic nonunion.ConclusionThis case series demonstrates that a vascularized fibula flap is a potential reconstructive option for cervical spine defects, especially in defects greater than three cervical levels, in the setting of infection, and previously radiated patients.Level of Evidence4 Laryngoscope, 134:4923–4928, 2024
Microvascular reconstruction of midface osteoradionecrosis
Wax, Mark K. , Amin, Dev , Kane, Anne C. , Cannady, Steven B., Tasche, Kendall K. , DiLeo, Michael, Lander, Daniel P. , Pipkorn, Patrik , Sweeny, Larissa , Konuthula, Neeraja , Wax, Mark K , Kane, Anne C , Cannady, Steve B , Tasche, Kendall, Kejner, Alexandra E , Sweeny, Larissa , Jackson, Ryan S. , Curry, Joseph , Yang, Sara

Head & Neck | June 7, 2024 | Volume: 46 | Issue: 11 | Pages: 2824-2833

10.1002/hed.27824 Get It

AbstractBackgroundHead and neck osteoradionecrosis (ORN) of the midface requiring free flap (FF) reconstruction is uncommon. This multi‐institutional study was designed to review outcomes for this rare patient population.MethodsRetrospective multi‐institutional review of FF reconstruction for midface ORN (2005–2022; n = 54).ResultsThe FF survival rate was 87% (n = 54). Patients were less likely to be tolerating a regular diet at 3 months postoperative if they had a preoperative history of prior head and surgery (80% vs. 95%; p = 0.02), a pathologic fracture (50% vs. 90%; p = 0.04), exposed bone intraorally (43% vs. 94%; p = 0.002), or a fistula (67% vs. 96%; p = 0.03). Mean albumin was higher in patients whose FF survived (3.6 ± 0.5 vs. 2.7 ± 1.4; p = 0.03). Patients with low prealbumin were more likely to undergo a hematoma evacuation (27% vs. 0%; p = 0.02).ConclusionIn this series of midface ORN requiring FF reconstruction preoperative nutritional status impacted postoperative complications. Preoperative occurrence of a fistula, pathologic fracture, and intraoral bone exposure correlated with decreased tolerance of a regular diet following reconstruction.
Microvascular Free Flap Outcomes in Maxillectomy Defects from Invasive Fungal Sinusitis
Rao, Shilpa M., Knott, P. Daniel , Sweeny, Larissa , Domack, Aaron , Tang, Alice , Patel, Rusha , Pittman, Amy , Gardner, James Reed , Moreno, Mauricio A. , Sunde, Jumin , Cave, Taylor B., Knight, Nicolaus D., Greene, Ben, Pipkorn, Patrik , Joshi, Arjun S. , Ji, Keven Seung Yong , Yang, Sara , Wax, Mark K. , Thomas, Carissa M. , Gardner, J Reed , Chang, Brent A , Wax, Mark K , Thomas, Carissa M , Sweeny, Larissa , Rao, Shilpa M., Thakkar, Punam , Chang, Brent A.

The Laryngoscope | September 29, 2023 | Volume: 134 | Issue: 4 | Pages: 1642-1647

10.1002/lary.31081 Get It

ObjectivesMicrovascular free tissue transfer is routinely used for reconstructing midface defects in patients with malignancy, however, studies regarding reconstructive outcomes in invasive fungal sinusitis (IFS) are lacking. We aim to describe outcomes of free flap reconstruction for IFS defects, determine the optimal time to perform reconstruction, and if anti‐fungal medications or other risk factors of an immunocompromised patient population affect reconstructive outcomes.MethodsRetrospective review of reconstruction for IFS (2010–2022). Age, BMI, hemoglobin A1c, number of surgical debridements, and interval from the last debridement to reconstruction were compared between patients with delayed wound healing versus those without. Predictor variables for delayed wound healing and the effect of time on free flap reconstruction were analyzed.ResultsTwenty‐seven patients underwent free flap reconstruction for IFS. Three patients were immunocompromised from leukemia and 21 had diabetes mellitus (DM). Patients underwent an average of four surgical debridements for treatment of IFS. The interval from the last IFS debridement to flap reconstruction was 5.58 months (±5.5). Seven flaps (25.9%) had delayed wound healing. A shorter interval of less than 2 months between the last debridement for IFS and reconstructive free flap procedure was associated with delayed wound healing (Fisher Exact Test p = 0.0062). Other factors including DM, BMI, HgA1c, and bone reconstruction were not associated with delayed wound healing.ConclusionPatients with maxillectomy defects from IFS can undergo microvascular‐free flap reconstruction with good outcomes while on anti‐fungal medication. Early reconstruction in the first 2 months after the last IFS debridement is associated with delayed wound healing.Level of Evidence4 Laryngoscope, 134:1642–1647, 2024
Outcomes of Patients With Single-Node Metastasis of Human Papillomavirus–Related Oropharyngeal Cancer Treated With Transoral Surgery
Sinha, Parul , Last, Aisling, Ettyreddy, Abhinav R., Kallogjeri, Dorina , Pipkorn, Patrik , Rich, Jason T. , Zevallos, José P. , Paniello, Randal C., Abel, Katheryn Van, Moore, Eric J. , Oppelt, Peter , Palka, Kevin , Adkins, Douglas, Daly, Mackenzie, Abel, Kathryn M. Van , Van Abel, Katheryn, Van Abel, Kathryn M , Chen, Stephanie , Puram, Sid , Oppelt, Peter, Adkins, Douglas, Gay, Hiram A. , Thorstad, Wade , Jackson, Ryan S.

JAMA Otolaryngology–Head & Neck Surgery | November 5, 2020 | Volume: 147 | Issue: 1 | Pages: 16

10.1001/jamaoto.2020.3870 Get It

Multi‐institutional analysis of outcomes following transoral surgery for HPV‐positive oropharyngeal squamous cell carcinoma in elderly patients
Jackson, Ryan S. , Chen, Stephanie , Last, Aisling, Khan, Amish M., Kallogjeri, Dorina , Abel, Kathryn M. Van , Moore, Eric J. , Pipkorn, Patrik , Van Abel, Kathryn M

Head & Neck | August 28, 2019 | Volume: 41 | Issue: 11 | Pages: 3933-3939

10.1002/hed.25946 Get It

AbstractBackgroundThe incidence of human papillomavirus (HPV)‐related oropharyngeal squamous cell carcinoma (OPSCC) is rising, even in elderly patients. The outcomes of transoral surgery (TOS) in this population are not entirely known.MethodsA retrospective review was performed at two institutions from October 2003 to September 2016 on patients 70 years or older with HPV‐related OPSCC treated with TOS.ResultsA total of 75 patients were included with a mean age of 74 years (70‐87 years). At a median follow‐up of 35.7 months, 3‐year overall survival was 81.5% and disease‐specific survival was 94.3%. Advanced cT stage (odds ratio, 2.74; 95% confidence interval, 1.13‐6.64) negatively impacted OS. Conjunctive consolidation was performed to create a staging system with patients older than 80 years, severe comorbidity, and cT3‐4 having worse survival.ConclusionsElderly patients with HPV‐related OPSCC treated with TOS have excellent survival and therefore should not be excluded from such therapy based on age alone.
Eliminating Postoperative Radiation to the Pathologically Node-Negative Neck: Long-Term Results of a Prospective Phase II Study
Contreras, J. , Spencer, Christopher , DeWees, T.A. , Haughey, Bruce H. , Henke, Lauren E. , Chin, R , Paniello, Randal C., Rich, Jason T. , Jackson, Ryan S. , Oppelt, Peter , Pipkorn, Patrik , Zevallos, José P. , Daly, Mackenzie, DeWees, Todd, DeWees, Todd A , Spencer, Christopher, Oppelt, Peter, Chernock, Rebecca , Nussenbaum, Brian A. , Gay, Hiram A. , Adkins, Douglas R. , Thorstad, Wade

Journal of Clinical Oncology | June 27, 2019 | Volume: 37 | Issue: 28 | Pages: 2548-2555

10.1200/jco.19.00186 Get It

PURPOSE The volume treated with postoperative radiation therapy (PORT) is a mediator of toxicity, and reduced volumes result in improved quality of life (QOL). In this phase II trial, treatment volumes were reduced by omitting PORT to the pathologically negative (PN0) neck in patients with primary head and neck squamous cell carcinoma. METHODS Patients with head and neck squamous cell carcinoma who underwent surgical resection and neck dissection with a PN0 neck and high-risk features mandating PORT to the primary and/or involved neck were eligible. The primary end point was greater than 90% disease control in the unirradiated neck. QOL was evaluated using the MD Anderson Dysphagia Inventory and the University of Michigan patient-reported xerostomia questionnaire. RESULTS Seventy-three patients were enrolled, and 72 were evaluable. Median age was 56 years (range, 31 to 81 years); 58 patients were male, and 47 (65%) had a smoking history. Sites included oral cavity (n = 14), oropharynx (n = 37), hypopharynx (n = 4), larynx (n = 16), and unknown primary tumor (n = 1). According to the American Joint Committee on Cancer Staging Manual (7 th edition), 67 patients (93%) had stage III/IV disease, and 71% of tumors involved or crossed midline. No patient had contralateral neck PORT. In 17 patients (24%), only the primary site was treated. At a median follow-up of 53 months, two patients experienced treatment failure of the PN0 unirradiated neck; they also experienced treatment failure locally. Unirradiated neck control was 97% (95% CI, 93.4% to 100.0%). Five-year rates of local control, regional control, progression-free survival, and overall survival were 84%, 93%, 60%, and 64%, respectively. QOL measures were not significantly different from baseline at 12 and 24 months post-PORT ( P > .05). CONCLUSION Eliminating PORT to the PN0 neck resulted in excellent control rates in the unirradiated neck without long-term adverse effects on global QOL.
Oncologic outcomes of extended neck dissections in human papillomavirus‐related oropharyngeal squamous cell carcinoma
Zenga, Joseph , Pipkorn, Patrik , Graboyes, Evan M. , Martin, Eliot J., Rich, Jason T. , Moore, Eric J. , Haughey, Bruce H. , Jackson, Ryan S.

Head & Neck | January 29, 2018 | Volume: 40 | Issue: 5 | Pages: 955-962

10.1002/hed.25060 Get It

AbstractBackgroundOncologic outcomes of human papillomavirus (HPV)‐related oropharyngeal squamous cell carcinoma (SCC) requiring resection of major muscular or neurovascular tissue during neck dissection for invasive nodal disease remain uncertain.MethodsPatients with HPV‐related oropharyngeal SCC requiring resection of major muscular or neurovascular tissue during their neck dissections were retrospectively identified.ResultsSeventy‐two patients were included. Regional and distant recurrences occurred in 6% and 17% of patients. Advanced T classification, pathological node number of 5 or more, and omission of adjuvant therapy were associated with decreased disease‐free survival (DFS). The addition of adjuvant chemotherapy was not associated with improved survival.ConclusionPatients with invasive nodal disease from HPV‐related oropharyngeal SCC can be managed with up‐front surgery and adjuvant therapy, as indicated with good regional control. Although distant recurrence was the primary site of failure, adjuvant chemotherapy was not associated with improved outcomes. The T classification, node number, and adjuvant radiotherapy are independent prognostic factors in this patient population.