1.Defective Conduction of Anorectal Afferents Is a Very Prevalent Pathophysiological Factor Associated to Fecal Incontinence in Women
Lluís MUNDET ; Christopher CABIB ; Omar ORTEGA ; Laia ROFES ; Noemí TOMSEN ; Sergio MARIN ; Carla CHACÓN ; Pere CLAVÉ
Journal of Neurogastroenterology and Motility 2019;25(3):423-435
BACKGROUND/AIMS: Fecal incontinence (FI) is a prevalent condition among women. While biomechanical motor components have been thoroughly researched, anorectal sensory aspects are less known. We studied the pathophysiology of FI in community-dwelling women, specifically, the conduction through efferent/afferent neural pathways. METHODS: A cross-sectional study was conducted on 175 women with FI and 19 healthy volunteers. The functional/structural study included anorectal manometry/endoanal ultrasound. Neurophysiological studies including pudendal nerve terminal motor latency (PNTML) and sensory-evoked-potentials to anal/rectal stimulation (ASEP/RSEP) were conducted on all healthy volunteers and on 2 subgroups of 42 and 38 patients, respectively. RESULTS: The main conditions associated with FI were childbirth (79.00%) and coloproctological surgery (37.10%). Cleveland score was 11.39 ± 4.09. Anorectal manometry showed external anal sphincter and internal anal sphincter insufficiency in 82.85% and 44.00%, respectively. Sensitivity to rectal distension was impaired in 27.42%. Endoanal ultrasound showed tears in external anal sphincter (60.57%) and internal anal sphincter disruptions (34.80%). Abnormal anorectal sensory conduction was evidenced through ASEP and RSEP in 63.16% and 50.00% of patients, respectively, alongside reduced activation of brain cortex to anorectal stimulation. In contrast, PNTML was delayed in only 33.30%. Stools were loose/very loose in 56.70% of patients. CONCLUSIONS: Pathophysiology of FI in women is mainly associated with mechanical sphincter dysfunctions related to either muscle damage or, to a lesser extent, impaired efferent conduction at pudendal nerves. Impaired conduction through afferent anorectal pathways is also very prevalent in women with FI and may play an important role as a pathophysiological factor and as a potential therapeutic target.
Anal Canal
;
Brain
;
Cross-Sectional Studies
;
Evoked Potentials
;
Fecal Incontinence
;
Female
;
Healthy Volunteers
;
Humans
;
Manometry
;
Neural Pathways
;
Parturition
;
Pudendal Nerve
;
Tears
;
Ultrasonography
2.Segmental osteotomy for mobilization of dental implant.
Sergio OLATE ; Benjamin WEBER ; Alvaro MARIN
Journal of Periodontal & Implant Science 2013;43(5):243-247
PURPOSE: The aim of this work is to evaluate a surgical technique for mobilization of mal posed dental implant in anterior area. METHODS: A 38-year-old patient consulted our unit for esthetic dissatisfaction with the implant treatment of a central incisor. An implant was observed in 11 and 21, where 11 was 3 mm above the ideal limit, with excessive vestibular angulation. The choice was made to perform a segmental osteotomy and mobilize the bone block and the implant down and forward; a bone block extracted from the mandibular ramus was installed between the implant block and the bed to stabilize the segment. RESULTS: After 4 months, a conventional fixed prosthesis was created and the esthetic result achieved was close to what the patient wanted, with no need for further surgery. The surgical condition was stabilized and maintained for the long-time and no complications how necrosis, infection or bone defects was present. CONCLUSIONS: It was concluded that the procedure is efficient, and the biological arguments in favor of the procedure are discussed.
Adult
;
Dental Implants*
;
Humans
;
Incisor
;
Necrosis
;
Osteotomy*
;
Prostheses and Implants

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