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Biomedical subjects

P Parmeggiani

Publications and source records attributed to P Parmeggiani.

6 recordsLinked to original sources

[Painful defecation and chronic functional constipation in children: Diagnosis and treatment].

AIM: The aim of this study was to report our results on the treatment of chronic constipation associated with pain during defecation. METHODS: From January 1999 to January 2004, 60 patients (25 females, 35 males; age range, 6 months to 12 years) who met the ROMA II diagnostic criteria for chronic functional constipation associated with pain on defecation were enrolled in the study. All subjects underwent anorectal manometry to determine rectosphincter inhibitory reflex function. A retraining program for daily defecation, a diet high in fiber and lactulose, and local administration of prilocaine/lidocaine were instituted. At rectal anal endosonography, 7 drug-treatment-resistant patients presented with increased thickness of the internal anal sphincter and received botulin toxin A injection at the sphincter. Because symptoms persisted in 2 of these patients, they received a sphincterectomy. RESULTS: At the end of treatment, 40 (71.4%) of the 56 patients who completed the study had a daily bowel movement without pain; 9 experienced a relapse; in the 2 surgical patients the alveus returned to normal function at 2 and 6 weeks, respectively. CONCLUSIONS: Our treatment strategy breaks the vicious circle of spasm-pain-spasm with use of prolonged analgesic treatment and feces softener over the course of the day. In treatment-resistant patients with functioning rectosphincter reflexes and thickened internal anal sphincter, administration of botulin toxin A may be a valuable aid in place of standard sphincterectomy.

Anal Canal↗

[Efficacy of toxin-A Botulinum for treating intractable bladder hyperactivity in children affected by neuropathic bladder secondary to myelomeningocele: an alternative to enterocystoplasty].

AIM: To verify the efficacy of botulinus toxin A (TB-A) in treating children with neuropathic bladder secondary to myelomeningocele (MMC) with detrusor hyperactivity/low compliance, resistance to pharmacological therapy, and candidates for enterocystoplasty. METHODS: From January 2002 to June 2003, a group of 7 patients was selected (4 females, 3 males, mean age, 9.8 years, age range, 5-17 years) with detrusor hyperactivity, clean intermittent catheterization and resistance to pharmacological therapy. Two patients presented with grade 2-3 monolateral vesicoureteral reflux (VUR). All patients were incontinent despite catheterization. Botulinus toxin A was administered under general or local anesthesia by the injection of 200 IU of toxin diluted in 10 cc of physiologic solution with a metal or a flexible needle (3.7 F/21 GA). The needle was fully inserted into the detrusor muscle in about 20 sites, and 0.5 cc of solution were injected in each site, except the trigonum vesicae. Follow-up included ultrasound examination of the urinary tract and urodynamic studies performed at 6, 12 and 24 weeks and biannually thereafter. Micturition cystography was performed 3 months after the intervention. Urodynamic parameters were leak point pressure (LPP), leak point volume (LPV) and specific volume at 20 cm H2O pressure. The results were analyzed using the Wilcoxon test. RESULTS: A significant increase in LPV (range, 30-108%, mean, 77.6%) and in specific volume at 20 cm H2O pressure (CS 20) was observed in all patients. No significant change in LPP was found. One patient previously treated with the Cohen reimplantation technique experienced transient VUR which resolved spontaneously within 1 month. No major side effects from the injection of TB-A occurred. All patients were hospitalized for 24 hours with catheterization. CONCLUSIONS: The preliminary results in this small sample of patients suggest that the use of TB-A is efficacious in significantly improving urodynamic parameters and urine storage volume at low pressures in patients with neuropathic bladder resistant to pharmacological therapy.

Adolescent↗

Laparoscopic Fowler-Stephens procedure is contraindicated for intraabdominal testicular major duct anomalies.

The laparoscopic one- and two-stage Fowler-Stephens procedure has gained large popularity in the treatment of the child with a high intraabdominal testis. It is largely debated which technique (e.g., testicular autotransplant or Fowler-Stephens procedure) offers the best results for high intraabdominal testes. We describe a case of a 3-year-old boy for whom previous bilateral inguinal exploration results were negative for testes or testicular remnants. The diagnostic laparoscopy showed two iliac intraabdominal testes with short spermatic vessels, closed inguinal rings, and complete dissociation of didime-epididime. A left open orchidopexy was perfomed, and testicular autotransplant was proposed for the right testes located 4 cm from the internal inguinal ring. Long-term follow-up evaluation (1.8 years) of the left testis showed it in the scrotum with good testicular size (1.5 cm). We believe that there are two main reasons to contraindicate the Fowler-Stephens technique: associated malformation that does not permit the development of the collateral blood flow via the vasal artery necessary for a viable testis, and previous surgery that represents a risk factor for testicular atrophy. The laparoscopic anatomic classification for the intraabdominal testis is reliable and can disclose the most suitable surgical technique. Laparoscopy is a valuable tool in the diagnosis and treatment of the nonpalpable testicle.

Journal Article↗

[Megarectum in childhood].

The criteria employed in the classification of megarectum in infancy are briefly reviewed and its diagnosis is discussed. Stress is laid on the importance of clyster radiology and rectal manometry. Biopsy extended to the point of true sphincteromyectomy may also prove resolutive. Lastly, infantile neuropsychiatry is unmistakably indicated in diagnosing the psychological origin of many of these forms. Aganglionic forms are quickly described and attention is directed to those due to fibrosis of the inner sphincter. Most of such cases are shown to be of secondary, reactive, rather than primary congenital, origin on histological inspection after surgery. Lastly, consideration is given to essentially psychogenic forms. The picture observed in a case treated by sphincteromyectomy with histological evidence of interstitial fibrosis with muscle and nerve regression suggested that affective disturbances lead first to persistent constipation, followed by abnormal distension of the last segments of the intestine. Subsequent regression results in an organic evolution independent of the original disturbance, so that surgery must be resorted to, as well as neuropsychiatric treatment.

Child↗