人工鼻泪管植入治疗鼻泪管阻塞

目的 探讨人工鼻泪管植入术的手术技巧,评价其疗效。方法 对３２例（３２只眼）鼻泪管阻塞行人工鼻泪管植入术,经逆行扩张鼻泪道后植入特制的人工鼻泪管,均于术前行泪道造影检查。结果 ３２只眼３０只眼成功植入了人工鼻泪管,手术植入成功率为９３．８％。术后６月随访有效率为１００％。结论 人工鼻泪管植入术治疗鼻泪管阻塞操作简单,安全性好,有效率高。     

Otologic T-tube in endonasal dacryocystorhinostomy: a new approach

Conclusion. Otologic T-tubes had a success rate of 73% if implanted during endoscopic dacryocystorhinostomy (DCR). We suggest that they can be used successfully in endoscopic DCR, and are promising as an alternative to silicone stent intubations. Objective. To evaluate the efficacy of endoscopic DCR using otologic T-tube. Materials and methods. Twenty patients (22 eyes) with nasolacrimal duct obstruction underwent endoscopic DCR. After creating an aperture in the medial wall of the lacrimal sac, the otologic T-tube (1.15 mm diameter, Invotec, Jacksonville, FL, USA) was inserted into the sac transnasally. The T-tube was left in the lacrimal sac for between 3 and 6 months. The patients were followed up for between 6 and 24 months (mean 12.4 months). The improvement in patients’ epiphora complaint was grouped as very good, good, or no change. Results. Eleven eyes (50%) proved to be ‘very good’, whereas five eyes (23%) were good, and six eyes (27%) had no change. Of six eyes that were reported to have no change after the operation, three experienced spontaneous tube loss in the early period, one eye was a recurrent case, and the other two were primary cases.     

第五代泪道内镜微钻疏通联合人工鼻泪管置入治疗鼻泪管阻塞的临床观察

目的 探讨第五代泪道内窥镜下泪道疏通联合人工鼻泪管置入治疗鼻泪管阻塞的临床疗效。 方法 选取2014年1月至2015年12月诊治的61例(61眼)鼻泪管阻塞患者为研究对象,采用泪道内窥镜下微钻疏通联合人工鼻泪管置入术治疗。 结果 随访观察6个月,治愈48例(48眼),好转8例(8眼),有效率91.8%,无效5例(5眼)。 结论 第五代泪道内窥镜下微钻疏通联合人工鼻泪管植入治疗鼻泪管阻塞安全、有效,创伤小,并发症少。     

国人成人鼻泪管的解剖学测量

目的：对成人鼻泪管局部解剖有进一步认识。方法：对国人成人４０具（８０侧）尸头鼻腔进行解剖学测量。结果：发现鼻泪管在下鼻道的开口有５种类型,其中以裂隙型多见;有７例存在２个开口。７３例鼻泪管及开口位置进行解剖学测量,鼻泪管平均长度１４．１４ｍｍ;前鼻孔内下缘交点至同侧鼻泪管开口前缘平均距离为２９．００ｍｍ（简称孔口距）;下鼻甲附着缘前端至鼻泪管开口前缘平均距离为１１．０７ｍｍ;前鼻孔内下缘交点至同侧     

Is it necessary to accompany probing with endoscopy in cases of congenital nasolacrimal canal obstruction?

Objective

To compare the results of probing with and without endoscopy in cases of congenital nasolacrimal duct obstruction who had previously not undergone probing.

Methods

Fifty-one children with congenital nasolacrimal duct obstruction who underwent surgical intervention between June 2007 and April 2009 in our hospital were included in the study. Patients who had had previous probings were excluded from the study. Conventional probing was performed in 37 eyes of 25 patients, and probing with intranasal endoscopic visualization in 36 eyes of 26 patients. Diagnosis was based on history of epiphora since birth or shortly after, and fluorescein dye disappearance test.

Results

Thirty-two of 37 eyes (86.48%) were cured by probing. Of the 5 cases with complaints, 1 had lacrimal sac fistula. Thirty-four of 36 eyes (94.44%) were cured by probing guided by endoscope observation. Thirty-two cases had stenosis at the lower end of the nasolacrimal duct which required probing. In two cases the probe passed submucosally to the floor of the nose. In two cases a false passage was made at the upper end of the inferior meatus. In these cases, the operation was continued by repeating the process until the distal end of the nasolacrimal canal was seen to have been passed.

Conclusion

Probing with endoscopy may be excessive in primary cases but in cases which have undergone unsuccessful probing, it is useful for visualization of anomalies in the lower nasolacrimal canal and to obtain the correct anatomic position for the probe.     

Estudio comparativo entre sondajes lacrimonasales de primera intención con y sin control endoscópico

ObjectiveOur objective was to compare the results of probing with and without endoscopy in cases of congenital nasolacrimal duct obstruction without prior probing.MethodsThis was a retrospective analysis on 2 non-randomized cohorts, 36 simple soundings (group 1) and 36 soundings with endoscope (group 2), between January 2011 and January 2013. Both groups were similar in age and had no previous surgery. The age of the patients studied ranged between 8 and 27 months in the first group and between 7 and 30 months in the second group.ResultsThe procedure was successful in 50% of the conventional probing group and in 97.22% in the endoscopy probing group. In this group 16.67% of patients with tight inferior turbinate and 11.11% of those where the probe passed into the submucosal space were diagnosed and corrected intraoperatively. Some anomaly was observed in 30.56% of patients undergoing endoscopy.ConclusionAlthough nasal endoscopy is classically reserved for unsuccessful probing, its use in primary intention increases the success rate of the procedure. In our study, 97.22% of eyes had complete resolution of symptoms, avoiding a second surgery and the use of more expensive materials and techniques. Nasal endoscopy helps intraoperative visualisation, understanding and management of congenital nasolacrimal duct obstruction and is the only method that confirms the correct anatomic position of the catheterisation in real time.     

Congenital dacryocystocele associated with intranasal cysts: diagnosis and management

OBJECTIVE: To improve the diagnostic and therapeutic database for congenital dacryocystoceles. STUDY DESIGN/METHODS: Retrospective case study of 10 patients with dacryocystoceles treated in an academic integrated tertiary care practice. Management and outcomes are compared to previous reports in the literature. RESULTS: Between the years 1990 and 2001, 10 patients were diagnosed with dacryocystoceles. Seven were females, and 3 were males. Age ranged from 1 to 75 days. Nine of 10 had a unilateral dacryocystocele, and 1 had bilateral dacryocystoceles. Epiphora was reported in 8 patients. Preoperatively, dacryocystitis, facial cellulitis, or both were present/developed in 2 patients. Symptoms of airway obstruction were present in 3 neonates. Surgery was performed in 9 of 10 patients and was a combined ophthalmology/otolaryngology surgery in 7 cases. Two patients were treated with probing only. Intranasal cysts were identified in all 7 patients who underwent a combined approach. Three of 7 patients had bilateral intranasal cysts. Follow-up ranged from 9 months to 10 years (mean, 5 years). Complete resolution was observed in 9 patients. One patient had postoperative nasolacrimal duct obstruction 2 months postoperatively, presenting with mucopurulent drainage and cellulitis. The existing literature often suggests conservative management as a treatment option. CONCLUSION: True dacryocystoceles are a relative rarity. The literature describes a variable natural course of these lesions with resultant controversy in their management. The current results demonstrate successful treatment in 6 of 7 patients with an early combined surgical approach and 2 of 2 patients treated by probing alone. The high failure rate with conservative management, reported in the literature, supports early surgical intervention.     

Endoscopic “retrograde” dacryocystorhinostomy: A fast route to the lacrimal sac

Endoscopic Dacryocystorhinostomy (DCR) is an established surgical technique for the management of peripheral nasolacrimal duct (NLD) obstruction. Its main points are the correct identification of the lacrimal sac and the execution of surgical procedures that allow a rapid and accurate healing of the surgical field. The main endoscopic landmarks used for the identification of the lacrimal sac are the middle turbinate and the maxillary line.However, in some cases, this procedure can be difficult due to several factors (e.g. anatomical variations, former surgery).In the present study, a variation of “classic” endoscopic DCR, named “retrograde” endoscopic endonasal DCR (rDCR), is described. rDCR is performed through the quick identification of the NLD at the level of the most anterior insertion of the inferior turbinate in the lateral nasal wall. In most cases, at this level only a very thin shell of bone is present (crack point), easily fractured by using blunt angled dissector. The duct is then followed upward along its course by removing the overlying bone in order to correctly identify the lacrimal sac and unequivocally drill along the lacrimal pathway. This technique proved to be a safe, quick and effective procedure, even in patients with difficult anatomy.     

The endoscopic approach for congenital nasolacrimal duct obstruction

Probing of the nasolacrimal duct is a common procedure in children with congenital stenosis. Although simple probing of the nasolacrimal duct is successful in a majority of patients, a number of failures occur. In those temporary intubation of the nasolacrimal duct with a silicone drain may solve the problem. We performed silicone intubation in 11 infants under nasal endoscopic control. By this improved visualization of the inferior meatus, the procedure was facilitated. In four children the probe was unable to pierce the nasal mucosa and stayed in the submucosal space. An incision of the nasal mucosa was needed before the probe could be passed into the nasal lumen. We believe that this situation, inability to pierce the nasal mucosa, may explain a number of failures of simple probing. It is therefore advisable, especially if initial probing has failed, to repeat the procedure under endoscopic control.     

Results of endoscopic assisted probing for congenital nasolacrimal duct obstruction in older children

PURPOSE: To evaluate the results of lacrimal probing with the use of nasal endoscopy and identify the anatomical anomalies responsible for the symptoms in older children. METHODS: Fifty-two eyes of 40 children with congenital nasolacrimal duct obstruction underwent primary probing of the lacrimal duct under general anaesthetic in conjunction with nasal endoscopy. Patients followed up for at least 6 months. Cure was defined as complete resolution of symptoms or minimal symptoms brought on by cold or wind. RESULTS: The age range was 12-126 months. In 30/52 (57.7%) eyes the symptoms were attributed to a single mechanical obstruction. Seven eyes had canalicular stenosis. Three eyes had upper nasolacrimal duct obstruction. Nine eyes had narrow duct and nine eyes had atresia of the distal end of the duct. Two eyes had only intranasal abnormalities. In 16/52 (30.76%) eyes a combination of anomalies was responsible for the symptoms. Nine eyes had canalicular stenosis in association with: either a membrane at the valve of Hasner in four, or a narrow duct in three, or intranasal anomalies in two. Two eyes had punctual stenosis and narrow duct. Two eyes had narrow duct and tight inferior turbinate. Three eyes had abnormal openings in association with stenotic ducts. Six (11.54%) eyes had functional blockage. With the use of endonasal endoscopy, intranasal anomalies identified in 12 eyes and treated in nine. One eye had large inferior conchae. One eye had inferior concha adherent to lateral nasal wall. One eye had redundant nasal mucosa. Three eyes had tight inferior turbinate. Three had abnormal openings. In three eyes the probe went submucosally. The overall success rate was 84.6% (44/52 eyes). Eight eyes remained unchanged. Endoscopically treated cases contributed to the overall success by 17.31%. CONCLUSION: Multiple anatomical anomalies within the lacrimal system and abnormalities of the nose are quite common in older children. Lacrimal probing remains the primary treatment and nasal endoscopy is a useful adjunct to probing increasing the success rate of the procedure.     

Pediatric Endoscopic Dacryocystorhinostomy Failures: Who and Why?

OBJECTIVE: The objectives of this study are to report outcomes of pediatric patients with nasolacrimal duct obstruction (NLDO) who underwent primary endoscopic dacryocystorhinostomy (DCR) and discuss causes of failure. STUDY DESIGN: The authors conducted a retrospective case series. METHODS: Charts of all patients less than 16 years of age who underwent primary endoscopic DCR from 1997 to 2004 were reviewed. Patients were grouped based on the presence or absence of facial anomalies or syndromes and whether the NLDO was congenital or acquired. Success was defined as complete resolution of symptoms, improvement included anatomic patency or partial symptoms, and failure as no improvement or demonstration of patency. RESULTS: Thirty-four patients (43 ducts) aged 11 months to 14 years were identified. There were 17 males and 17 females. Follow up ranged from 2 to 54 months (average, 21 months). Twenty-four patients (29 ducts) had congenital NLDO, seven patients (11 ducts) had congenital syndromes associated with craniofacial abnormalities, and three patients (three ducts) had acquired NLDO. In patients with congenital NLDO without craniofacial abnormalities or syndromes, 22 of 29 eyes (76%) were cured with another three (10%) showing improvement. Only one of 11 (9%) eyes of patients with congenital craniofacial abnormality or syndrome experienced complete resolution and only four of 11 (36%) eyes showed improvement. Of the patients with acquired NLDO, two of three (67%) of the eyes were cured and one (33%) improved. CONCLUSIONS: Endoscopic DCR is safe and effective for most children, although patients with craniofacial abnormalities or syndromes are extremely difficult to cure.     

Use of endocanalicular dacryocystorhinostomy with multidiode laser in children

Objective

To evaluate the clinical outcome and efficacy of endocanalicular laser dacryocystorhinostomy using a multidiode laser in cases unresponsive to medical therapy, probing or intubation of pediatric nasolacrimal duct obstruction.

Methods

Eight children with nasolacrimal duct obstruction were treated with a multidiode laser. The study was prospective, non-randomized, and noncomparative. The patients, 2 (25%) males and 6 (75%) females, ranged in age from 8 to 13 years (mean 11.25 ± 2.43). Surgery was performed under general anesthesia. All procedures were performed using a multidiode laser. The nasal passage was visualized with a 30° nasal video endoscope. In all cases, silicone stents were inserted. The main outcome measure was resolution or improvement of the epiphora and no major laser damage intranasally. Patients were followed for at least 6 months.

Results

The endocanalicular laser dacryocystorhinostomy failed in one of the 8 (12.5%) cases, which had been secondary to trauma. The others were due to primary nasolacrimal duct obstruction. External dacryocystorhinostomy was performed on the failed case. None of the cases with primary nasolacrimal duct obstruction had obstruction after the endocanalicular laser dacryocystorhinostomy operation.

Conclusions

Endocanalicular laser dacryocystorhinostomy using a multidiode laser appears to be an effective technique in cases unresponsive to medical therapy, probing or intubation of primary nasolacrimal duct obstruction.