The prelacrimal recess approach (PLRA) has advanced endoscopic sinonasal surgery by providing improved access to the maxillary sinus and adjacent anatomical regions while preserving critical structures such as the inferior turbinate (IT) and nasolacrimal duct (NLD). First introduced in 2013, the PLRA has become an important technique for addressing various sinonasal pathologies. This review comprehensively evaluates the advancements, applications, and outcomes associated with the PLRA. The PLRA enables superior visualization and access to regions that are traditionally difficult to reach with conventional techniques. Standardized surgical steps emphasize meticulous preservation of the NLD and IT, while technical modifications have broadened its feasibility in patients with narrow prelacrimal recesses. Applications of the PLRA span diverse pathologies, including sinonasal inverted papilloma, fungal infections, odontogenic cysts, and tumors of the lacrimal system, orbit, and skull base. Anatomical studies reveal significant variations in prelacrimal recess dimensions across populations, affecting surgical feasibility. Sex-specific differences, ethnic variations, and age-related factors are important in patient selection. Clinical outcomes from multiple investigations validate the PLRA’s efficacy in maintaining sinonasal function while achieving comprehensive lesion removal. Comparative analyses with traditional approaches underscore the PLRA’s advantages in reducing postoperative morbidity and recurrence rates. Integration of the PLRA with complementary surgical approaches further expands its therapeutic applications while maintaining favorable safety profiles. The PLRA is a safe and effective surgical method that offers favorable outcomes in disease management, symptom resolution, and anatomical preservation. With ongoing innovations and refinements, the PLRA is poised to remain a cornerstone of minimally invasive sinonasal surgery, enabling the precise and safe treatment of complex pathologies.

The prelacrimal recess approach (PLRA) has advanced endoscopic sinonasal surgery by providing improved access to the maxillary sinus and adjacent anatomical regions while preserving critical structures such as the inferior turbinate (IT) and nasolacrimal duct (NLD). First introduced in 2013, the PLRA has become an important technique for addressing various sinonasal pathologies. This review comprehensively evaluates the advancements, applications, and outcomes associated with the PLRA. The PLRA enables superior visualization and access to regions that are traditionally difficult to reach with conventional techniques. Standardized surgical steps emphasize meticulous preservation of the NLD and IT, while technical modifications have broadened its feasibility in patients with narrow prelacrimal recesses. Applications of the PLRA span diverse pathologies, including sinonasal inverted papilloma, fungal infections, odontogenic cysts, and tumors of the lacrimal system, orbit, and skull base. Anatomical studies reveal significant variations in prelacrimal recess dimensions across populations, affecting surgical feasibility. Sex-specific differences, ethnic variations, and age-related factors are important in patient selection. Clinical outcomes from multiple investigations validate the PLRA’s efficacy in maintaining sinonasal function while achieving comprehensive lesion removal. Comparative analyses with traditional approaches underscore the PLRA’s advantages in reducing postoperative morbidity and recurrence rates. Integration of the PLRA with complementary surgical approaches further expands its therapeutic applications while maintaining favorable safety profiles. The PLRA is a safe and effective surgical method that offers favorable outcomes in disease management, symptom resolution, and anatomical preservation. With ongoing innovations and refinements, the PLRA is poised to remain a cornerstone of minimally invasive sinonasal surgery, enabling the precise and safe treatment of complex pathologies.

The prelacrimal recess approach (PLRA) has advanced endoscopic sinonasal surgery by providing improved access to the maxillary sinus and adjacent anatomical regions while preserving critical structures such as the inferior turbinate (IT) and nasolacrimal duct (NLD). First introduced in 2013, the PLRA has become an important technique for addressing various sinonasal pathologies. This review comprehensively evaluates the advancements, applications, and outcomes associated with the PLRA. The PLRA enables superior visualization and access to regions that are traditionally difficult to reach with conventional techniques. Standardized surgical steps emphasize meticulous preservation of the NLD and IT, while technical modifications have broadened its feasibility in patients with narrow prelacrimal recesses. Applications of the PLRA span diverse pathologies, including sinonasal inverted papilloma, fungal infections, odontogenic cysts, and tumors of the lacrimal system, orbit, and skull base. Anatomical studies reveal significant variations in prelacrimal recess dimensions across populations, affecting surgical feasibility. Sex-specific differences, ethnic variations, and age-related factors are important in patient selection. Clinical outcomes from multiple investigations validate the PLRA’s efficacy in maintaining sinonasal function while achieving comprehensive lesion removal. Comparative analyses with traditional approaches underscore the PLRA’s advantages in reducing postoperative morbidity and recurrence rates. Integration of the PLRA with complementary surgical approaches further expands its therapeutic applications while maintaining favorable safety profiles. The PLRA is a safe and effective surgical method that offers favorable outcomes in disease management, symptom resolution, and anatomical preservation. With ongoing innovations and refinements, the PLRA is poised to remain a cornerstone of minimally invasive sinonasal surgery, enabling the precise and safe treatment of complex pathologies.

Background: The relationship between early life factors and childhood pulmonary function and structure in preterm infants remains unclear.Purpose: This study investigated the impact of bronchopulmonary dysplasia (BPD) and perinatal factors on childhood pulmonary function and structure. Methods: This longitudinal cohort study included preterm participants aged ≥5 years born between 2005 and 2015. The children were grouped by BPD severity according to National Institutes of Health criteria. Pulmonary function tests (PFTs) were performed using spirometry. Chest computed tomography (CT) scans were obtained and scored for hyperaeration or parenchymal lesions. PFT results and chest CT scores were analyzed with perinatal factors. Results: A total 150 children (66 females) aged 7.7 years (6.4–9.9 years) were categorized into non/mild BPD (n=68), moderate BPD (n=39), and severe BPD (n=43) groups. The median z score for forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC ratio, and forced midexpiratory flow (FEF25%–75%) were significantly lower in the severe versus non/mild BPD group (-1.24 vs. -0.18, -0.22 vs. 0.41, -1.80 vs. -1.12, and -1.88 vs. -1.00, respectively; all P<0.05). The median z scores of FEV1, FEV1/ FVC, and FEF25%–75% among asymptomatic patients were also significantly lower in the severe versus non/mild BPD group (-0.82 vs. 0.09, -1.68 vs. -0.87, -1.59 vs. -0.61, respectively; all P<0.05). The severe BPD group had a higher median (range) CT score than the non/mild BPD group (6 [0–12] vs. 1 [0–10], P<0.001). Prenatal oligohydramnios was strongly associated with both low pulmonary function (FEV1/FVCConclusion School-aged children with severe BPD showed airflow limitations and structural abnormalities despite no subjective respiratory symptoms. These results suggest that patients with a history of prenatal oligohydramnios or prolonged mechanical ventilation require extended follow-up.

Background: The relationship between early life factors and childhood pulmonary function and structure in preterm infants remains unclear.Purpose: This study investigated the impact of bronchopulmonary dysplasia (BPD) and perinatal factors on childhood pulmonary function and structure. Methods: This longitudinal cohort study included preterm participants aged ≥5 years born between 2005 and 2015. The children were grouped by BPD severity according to National Institutes of Health criteria. Pulmonary function tests (PFTs) were performed using spirometry. Chest computed tomography (CT) scans were obtained and scored for hyperaeration or parenchymal lesions. PFT results and chest CT scores were analyzed with perinatal factors. Results: A total 150 children (66 females) aged 7.7 years (6.4–9.9 years) were categorized into non/mild BPD (n=68), moderate BPD (n=39), and severe BPD (n=43) groups. The median z score for forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC ratio, and forced midexpiratory flow (FEF25%–75%) were significantly lower in the severe versus non/mild BPD group (-1.24 vs. -0.18, -0.22 vs. 0.41, -1.80 vs. -1.12, and -1.88 vs. -1.00, respectively; all P<0.05). The median z scores of FEV1, FEV1/ FVC, and FEF25%–75% among asymptomatic patients were also significantly lower in the severe versus non/mild BPD group (-0.82 vs. 0.09, -1.68 vs. -0.87, -1.59 vs. -0.61, respectively; all P<0.05). The severe BPD group had a higher median (range) CT score than the non/mild BPD group (6 [0–12] vs. 1 [0–10], P<0.001). Prenatal oligohydramnios was strongly associated with both low pulmonary function (FEV1/FVCConclusion School-aged children with severe BPD showed airflow limitations and structural abnormalities despite no subjective respiratory symptoms. These results suggest that patients with a history of prenatal oligohydramnios or prolonged mechanical ventilation require extended follow-up.

Background: The relationship between early life factors and childhood pulmonary function and structure in preterm infants remains unclear.Purpose: This study investigated the impact of bronchopulmonary dysplasia (BPD) and perinatal factors on childhood pulmonary function and structure. Methods: This longitudinal cohort study included preterm participants aged ≥5 years born between 2005 and 2015. The children were grouped by BPD severity according to National Institutes of Health criteria. Pulmonary function tests (PFTs) were performed using spirometry. Chest computed tomography (CT) scans were obtained and scored for hyperaeration or parenchymal lesions. PFT results and chest CT scores were analyzed with perinatal factors. Results: A total 150 children (66 females) aged 7.7 years (6.4–9.9 years) were categorized into non/mild BPD (n=68), moderate BPD (n=39), and severe BPD (n=43) groups. The median z score for forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC ratio, and forced midexpiratory flow (FEF25%–75%) were significantly lower in the severe versus non/mild BPD group (-1.24 vs. -0.18, -0.22 vs. 0.41, -1.80 vs. -1.12, and -1.88 vs. -1.00, respectively; all P<0.05). The median z scores of FEV1, FEV1/ FVC, and FEF25%–75% among asymptomatic patients were also significantly lower in the severe versus non/mild BPD group (-0.82 vs. 0.09, -1.68 vs. -0.87, -1.59 vs. -0.61, respectively; all P<0.05). The severe BPD group had a higher median (range) CT score than the non/mild BPD group (6 [0–12] vs. 1 [0–10], P<0.001). Prenatal oligohydramnios was strongly associated with both low pulmonary function (FEV1/FVCConclusion School-aged children with severe BPD showed airflow limitations and structural abnormalities despite no subjective respiratory symptoms. These results suggest that patients with a history of prenatal oligohydramnios or prolonged mechanical ventilation require extended follow-up.

Background: The relationship between early life factors and childhood pulmonary function and structure in preterm infants remains unclear.Purpose: This study investigated the impact of bronchopulmonary dysplasia (BPD) and perinatal factors on childhood pulmonary function and structure. Methods: This longitudinal cohort study included preterm participants aged ≥5 years born between 2005 and 2015. The children were grouped by BPD severity according to National Institutes of Health criteria. Pulmonary function tests (PFTs) were performed using spirometry. Chest computed tomography (CT) scans were obtained and scored for hyperaeration or parenchymal lesions. PFT results and chest CT scores were analyzed with perinatal factors. Results: A total 150 children (66 females) aged 7.7 years (6.4–9.9 years) were categorized into non/mild BPD (n=68), moderate BPD (n=39), and severe BPD (n=43) groups. The median z score for forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC ratio, and forced midexpiratory flow (FEF25%–75%) were significantly lower in the severe versus non/mild BPD group (-1.24 vs. -0.18, -0.22 vs. 0.41, -1.80 vs. -1.12, and -1.88 vs. -1.00, respectively; all P<0.05). The median z scores of FEV1, FEV1/ FVC, and FEF25%–75% among asymptomatic patients were also significantly lower in the severe versus non/mild BPD group (-0.82 vs. 0.09, -1.68 vs. -0.87, -1.59 vs. -0.61, respectively; all P<0.05). The severe BPD group had a higher median (range) CT score than the non/mild BPD group (6 [0–12] vs. 1 [0–10], P<0.001). Prenatal oligohydramnios was strongly associated with both low pulmonary function (FEV1/FVCConclusion School-aged children with severe BPD showed airflow limitations and structural abnormalities despite no subjective respiratory symptoms. These results suggest that patients with a history of prenatal oligohydramnios or prolonged mechanical ventilation require extended follow-up.

Allergen immunotherapy (AIT) has been used for over a century and has been demonstrated to be effective in treating patients with various allergic diseases. AIT allergens can be administered through various routes, including subcutaneous, sublingual, intralymphatic, oral, or epicutaneous routes. Sublingual immunotherapy (SLIT) has recently gained clinical interest, and it is considered an alternative treatment for allergic rhinitis (AR) and asthma. This review provides an overview of the current evidence-based studies that address the use of SLIT for treating AR, including (1) mechanisms of action, (2) appropriate patient selection for SLIT, (3) the current available SLIT products in Korea, and (4) updated information on its efficacy and safety. Finally, this guideline aims to provide the clinician with practical considerations for SLIT.

Objectives: . Facial nerve sacrifice during radical parotidectomy can impair quality of life. This study assessed the effectiveness of single-stage facial reanimation surgery performed concurrently with radical parotidectomy in restoring facial function. Methods: . A retrospective analysis was conducted on patients who underwent single-stage facial reanimation combined with radical parotidectomy. The techniques employed included selective reinnervation and orthodromic temporalis tendon transfer. Outcomes were evaluated using the modified House-Brackmann and Terzis grading systems, Emotrics facial assessment, and the Facial Disability Index (FDI). Results: . Among the 13 patients studied (median age, 54 years; 69% male), 10 underwent selective reinnervation. Of these, nine patients demonstrated improvement, achieving House-Brackmann grade III and Terzis grade 4 or 5. The other three patients underwent tendon transfer and achieved moderate functional outcomes. Emotrics analysis revealed balanced facial symmetry in the selective reinnervation group. Furthermore, FDI scores indicated satisfactory physical and social/well-being functions. Conclusion . Single-stage facial reanimation effectively restores facial function in patients undergoing radical parotidectomy. This approach offers meaningful benefits in the early recovery of facial function.