Biomedical subjects

M Cárdenas Lara

Publications and source records attributed to M Cárdenas Lara.

3 recordsLinked to original sources

PubMed2006

[Results the application of mitomicyn during endonasal and endocanalicular dacryocystorhinostomy by diode laser].

AIM OF THE STUDY: To study the effects, secondary effects and security of the intrasurgical application of mitomicyn C during endonasal and endocanalicular dacryocystorhinostomy with diode laser (TLA-ELA DCR). METHODS: We carried out a randomized, prospective, interventional and double blind study in 200 patients: intrasurgical mitomicyn C was applied in 150 of then (0.4 mgr/0.2 ml) for 5 minutes by means of a polivinil acetate dressing over the osteotomy. In other 50 patients MMC was not used we followed up at 24 hours, 10 days and 1, 3 and 6 months after surgery. Endoscopic aspects and possible complications were valued. The results were compared using the Chi-squared test with the Yates correction. We looked for the presence or abscense of secondary effects in the application of mitomicyn C. RESULTS: The average follow up was 15.25 months (range 6 to 21 months). The percentages of alterations for excesive scarring were 21.77% in patients without and MAC 8.03% in the ones MMC. The difference was statisticaly significant (p = 0.02). We did not find secondary effects due to application of mitomcyn. CONCLUSIONS: Intrasurgical application of topical MMC during TLA-ENL DCR reduces the number of pathological findings due to scarring of the surrouding area of the new drainage without secondary effects.

Adolescent↗

PubMed2004

[Endonasal and endocanalicular dacryocystorhinostomy by diode laser. Preliminary results].

AIM OF THE STUDY: To describe the surgical technique and to evaluate the clinical results after having performed the transcanalicular and endocanalicular dacryocystorhinostomies by diode laser, including the advantages and limits of this technique. METHODS: 34 were performed by diode laser in patients with clinical history of epiphora, with or without mucopurulent secretion, for nasolacrimal duct obstruction. The study was prospective, interventional, non randomized and non comparative. Diode laser was used to realize vaporization of lacrimal sac, osteotomy and vaporization with coagulation of nasal mucosa. The mean of surgical time was 15 minutes (range 7 to 29 minutes). Bicanalicular intubation was performed with a silicone tube and prolene filament for two months in all cases. Postsurgical follow-up was between 4 and 11 months. The degree of epiphora was evaluated by the Munk scale and lacrimal permeability was evaluated by endoscopic functional staining test in all cases. RESULTS: Out of the 34 DCR-EDN+ENC that were performed, 32 cases (94.11%) remain asymptomatic. Two of them (5.88%) required endonasal dacryocystorhinostomies by drilling, because the bony perforation was impossible to achieve by laser fiber. Two cases (5.88%) presented fibrosis and lacrimal and lower canaliculi obstruction, without epiphora because the superior canaliculi was permeable. CONCLUSION: Endonasal and endocanalicular dacryocystorhinostomy technique performed by diode laser is a valid method. It does not cause cutaneous scarring, it decreases thermic canalicular damage, it respects the lacrimal pump, it minimizes pain and bleeding, it needs less surgical time and it has turned into an out-patient procedure with a minimal surgical and postsurgical morbility.

Adult↗

PubMed2004

[Transcanalicular dacryocystorhinostomy technique using diode laser].

PURPOSE: To describe the surgical technique and to evaluate the clinical results of carrying out transcanalicular dacryocystorhinostomies using a diode laser (DCR-TC), including the advantages and limitations of this technique. METHODS: 43 DCR-TC were studied and they were analysed using a prospective, interventional, non randomized and non comparative study. We used local and topical anaesthesia in patients with a clinical history of epiphora or dacryocystitis for nasolacrimal obstruction. A diode laser was used to effect a vaporization of the lacrimal sac, osteotomy and vaporization with coagulation of nasal mucosa. The mean duration of surgery was 14 minutes (range 7 to 29 minutes). In all cases, and during a two-month period, bicanalicular intubation was carried out using a silicone tube and prolene filament. Follow-up was between 4 to 38 months. The degree of epiphora was evaluated using the Munk scale and lacrimal permeability was evaluated using Jones I and II tests by direct videoendoscopic control in all cases. RESULTS: 43 DCR-TC were realized, 39 cases are asymptomatic (90.7%). 2 of them (4.65%) had epiphora (degree 2 on the Munk scale) and permeable tract. One case (2.32%) presented lower canaliculi obstruction. One patient showed total osteotomy closing. CONCLUSIONS: Transcanalicular dacryocystorhinostomy carried out using a diode laser is a useful method because it does not cause cutaneous scarring, it hardly produces pain and bleeding, it respects the lacrimal pump, it needs less surgical time, it can be carried out in an out-patient surgery and it generates minimal intra and postsurgical morbility.

Adult↗