Chronic allograft nephropathy: a prospective randomised trial of cyclosporin reduction with or without mycophenolate mofetil.
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Biomedical subjects
Publications and source records attributed to S Jain.
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PURPOSE: To characterize monovision outcomes and patient satisfaction with conventional monovision (dominant eye corrected for distance) and crossed monovision (dominant eye corrected for near) in presbyopic individuals after excimer laser photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). DESIGN: Retrospective observational case series. PARTICIPANTS: One hundred forty-four consecutive patients, 45 years or older, who were treated with excimer laser refractive surgery between December 1995 and June 1998. METHODS: Patients in whom the surgical outcome was monovision (MV) (distance vision spherical equivalent [SE] -0.50 to +0.50 diopter (D), near vision SE -3.75 to -1.00 D and anisometropia 1.00 D or greater), crossed MV (dominant eye corrected for near vision and the nondominant eye for distance vision) and full correction (bilateral SE -0.50 to +0.50) were identified. Data were abstracted and analyzed statistically. MAIN OUTCOME MEASURES: Preoperative and postoperative visual acuity and refraction. Patient satisfaction with monovision RESULTS: Forty-two patients had surgical outcome of MV. In MV patients, the average distance vision SE, near vision SE, and anisometropia were -0.04 +/- 0.27 D, -1.95 +/- 0.70 D, and 1.92 +/- 0.74 D, respectively. Patient satisfaction was 88% with MV. Twelve patients attained crossed MV. All patients with crossed MV were satisfied with their vision. Patient satisfaction with MV showed no relationship to gender, age at initial surgery, preoperative trial of monovision, laterality of treatment, type of monovision, or predictability of outcomes. CONCLUSIONS: Monovision may be a valuable option for presbyopic individuals considering refractive surgery. Crossed monovision can result in satisfactory visual outcomes.
Microkeratome-assisted posterior keratoplasty is a new surgical technique that may be valuable in treating patients with corneal decompensation secondary to endothelial dysfunction. A hinged anterior stromal flap is fashioned in the host cornea using a microkeratome, and the diseased posterior stroma and endothelium are resected. A complementary donor stromal button is prepared using a microkeratome and an artificial anterior chamber. The donor button is transplanted and secured with sutures, and the flap is repositioned. The flap can be lifted later to remove the sutures or to correct residual refractive errors using an excimer laser. This technique may allow the use of infant corneal donor tissue and may improve the outcomes of posterior keratoplasty.
STUDY OBJECTIVE: To evaluate 3-year outcomes of extraperitoneal laparoscopic colposuspension in treating genuine stress incontinence. DESIGN: Retrospective review (Canadian Task Force classification II-2). SETTING: University-based, tertiary-level center for endoscopic surgery. PATIENTS: One hundred sixty women with genuine stress incontinence with bladder neck hypermobility. INTERVENTION: Extraperitoneal space was created with CO2 through a 10-mm midline port 2 cm above the pubic hairline. A pair of sutures was inserted at the level of midurethral and urethrovesical junction, fixing them to Cooper's ligament on each side with proper tension. MEASUREMENTS AND MAIN RESULTS: Of 160 women, 10 were lost to follow-up. On follow-up questionnaire sent to 150 patients, 148 (98.7%) were pleased with the results of surgery. Stress incontinence was cured in 136 women (90.7%) after a minimum of 3 years' follow-up. CONCLUSION: Cure rates for extraperitoneal colposuspension were similar to those reported for traditional laparoscopic or laparotomy Burch procedures; however, this is a more direct method to expose the space of Retzius, thus eliminating the need to open and close peritoneum.
STUDY OBJECTIVE: To describe our classification according to severity of developmental mullerian anomalies with obstructed cervix. DESIGN: Retrospective review (Canadian Task Force classification II-2). SETTING: University-based, tertiary-level center for endoscopic surgery. PATIENTS: Ten women with developmental mullerian anomalies with obstructed cervix. INTERVENTION: Patients with didelphic uterus with a rudimentary nonfunctional horn and hypoplastic cervix (type 1) underwent hemihysterectomy or diagnostic endoscopy. Those with agenesis of cervix with normal uterus (type 2) had uterovaginal canalization or neocervix with full-thickness skin graft. Women with identical didelphic uteri and hypoplastic cervix (type 3) underwent uterovaginal canalization with or without endometrial ablation or hemihysterectomy. Patients with didelphic uterus with a rudimentary horn and hypoplastic cervix (type 4) had laparoscopic hemihysterectomy. Those with agenesis of the vagina and cervix but with functional endometrium (type 5) had laparoscopic-assisted full-thickness skin graft. MEASUREMENTS AND MAIN RESULTS: Average duration of surgery was 60 to 210 minutes. There were no intraoperative complications. Patients with type 1 anomaly are continuing infertility treatment. All three patients in type 2 continue to have regular menses without dysmenorrhea. In those with type 3 conditions, hemihysterectomy was performed in one woman and uterovaginal canalization was performed on the hypoplastic cervix in another. After the neocervix was created, endometrial ablation was performed. No evidence of cervical obstruction or hematometra was found in either patient. The patient with type 4 anomaly continues to have regular menstrual periods without dysmenorrhea. Women with type 5 disorder had good healing of vaginal skin grafts. CONCLUSION: This classification helps identify mullerian anomalies in relation to obstructive cervix. It is useful in categorizing the disorders and determines management strategies and prognosis.
We used the middle upper abdomen as a primary port insertion as an alternative portal for laparoscopy and multiport operative pelviscopy in 188 women who were at high risk for subumbilical adhesions because of previous abdominal surgeries or history of gynecologic cancer. Primary cannula insertion was in the middle upper abdomen between xyphoid process and umbilicus (Lee-Huang point). This was the single entry site for the Veress needle and primary laparoscopy port. In 184 (98.4%) of 188 women surgery was performed without complications. No procedure was converted to laparotomy due to visceral or vascular injuries. Two omentum injuries from primary port insertion were repaired with bipolar electrocoagulation; a colon injury was repaired with laparoscopic sutures. In our experience, this laparoscopic port is effective in women who have had abdominal surgery or gynecologic malignancy. (J Am Assoc Gynecol Laparosc 8(1):147-150, 2001)
Maldevelopment of the mullerian duct system may result in various urogenital anomalies including didelphic uterus with a hypoplastic cervix. Two women with this anomaly experienced symptoms including recurrent lower abdominal pain off and on of 1 to 2 years' duration. Magnetic resonance imaging revealed a double uterus with right hematometrium both patients. After hysteroscopic identification of hypoplasia of right uterine cervix, laparoscopic resection of the hematosalpinx, followed by uterovaginal canalization and prophylactic endometrial ablation of the right uterus was successfully performed by resectoscope. Normal menstruation ensued during follow-up of 18 and 24 months, respectively. Our experience suggests that uterovaginal canalization with prophylactic endometrial ablation may be an efficacious alternative to hysterectomy for management of didelphic uterus with a hypoplastic cervix. (J Am Assoc Gynecol Laparosc 8(1):151-153, 2001)
Portal hypertension usually occurs in patients with fulminant hepatic failure (FHF). There is, however, no information on portal venous hemodynamics in patients with FHF. Therefore, we studied the portal venous hemodynamics in patients with FHF using duplex Doppler ultrasonography. We measured the portal vein diameter, flow velocity, and volume flow with duplex Doppler ultrasonography in 29 patients with FHF and 15 patients with uncomplicated acute viral hepatitis. No significant difference was observed in the portal vein parameters in the two groups. Nineteen patients with FHF survived. No difference in portal flow velocity and flow rate was observed between survivors and nonsurvivors. A significantly lower portal flow velocity was observed in nine patients of FHF with ascites compared with those without ascites (12.29+/-2.81 vs 16.26+/-4.87 cm/sec; P < 0.01). Portal hemodynamics do not significantly change in fulminant hepatic failure; therefore, it has no prognostic significance.
Oral mucosa is a rare site for cysticercosis. This paper describes eight cases of cysticercosis involving the oral cavity: four in the buccal mucosa, two in the lips, one in the tongue and one in the gums. All of the patients presented with a solitary superficial mucosal nodule, with duration varying from one month to three years. Larval fragments of cysticercus cellulosae on an inflammatory background were seen in cytologic smears in all cases. Diagnosis of cysticercosis was clinically unsuspected in all these cases prior to aspiration cytologic diagnosis.
Chromosome 22 has been implicated in schizophrenia and bipolar disorder in a number of linkage, association and cytogenetic studies. Recent evidence has also implicated CAG repeat tract expansion in these diseases. In order to explore the involvement of CAG repeats on chromosome 22 in these diseases, we have created an integrated map of all CAG repeats > or =5 on this chromosome together with microsatellite markers associated with these diseases using the recently completed nucleotide sequence of chromosome 22. Of the 52 CAG repeat loci identified in this manner, four of the longest repeat stretches in regions previously implicated by linkage analyses were chosen for further study. Three of the four repeat containing loci, were found in the coding region with the CAG repeats coding for glutamine and were expressed in the brain. All the loci studied showed varying degrees of polymorphism with one of the loci exhibiting two alleles of 7 and 8 CAG repeats. The 8-repeat allele at this locus was significantly overrepresented in both schizophrenia and bipolar patient groups when compared to ethnically matched controls, while alleles at the other three loci did not show any such difference. The repeat lies within a gene which shows homology to an androgen receptor related apoptosis protein in rat. We have also identified other candidate genes in the vicinity of this locus. Our results suggest that the repeats within this gene or other genes in the vicinity of this locus are likely to be implicated in bipolar disorder and schizophrenia.
Microfilariae and adult filarial worms have occasionally been detected in association with neoplastic lesions in cytological smears. The presence of microfilariae along with neoplasms is generally regarded as a chance association, yet some authors suggest that such parasitic infestations may be a causative factor for tumourigenesis. There are only a few reported cases in cytology literature documenting this association. We report the presence of microfilariae in routine cytology smears from one benign and four malignant tumours. Microfilariae could not be identified on histopathology available in four of these cases.
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Nodular fasciitis is a rare benign soft tissue tumour of the breast that clinically and radiologically can mimic invasive duct carcinoma. The clinical, radiological and pathological findings of nodular fasciitis of the breast in a 38-year-old woman, who presented with a palpable lesion in the upper inner aspect of the left breast, are described. The tumour is characterized histologically by a stellate spindle cell tumour with a focal myxoid background containing scattered inflammatory cells and microhaemorrhages. Pathological assessment of the lesion is essential in making the diagnosis.
A case of spongiform leucoencephalopathy in a known intravenous heroin abuser is presented. To our knowledge, this is the only case of heroin-related spongiform leucoencephalopathy reported in Australia. The relationship to intravenous rather than inhaled heroin is particularly unusual with only one other possible case documented in the literature. The imaging and histopathological findings are described.
Parkinson's disease (PD), a common, neurodegenerative disorder, has a worldwide distribution. The genetic basis of PD is not well understood, although some recent leads have emerged. Epidemiological studies suggest that there is significant variation in the prevalence of PD between different populations and rates are highest in populations of European origin. Significant differences in molecular pathology in PD and control brain tissue have been observed between African, British and Indian populations. In view of this epidemiological and pathological evidence, it is proposed that allelic variations in genes that predispose to PD may account for the ethnic variation. Advances in our knowledge about the human genome will allow us to make detailed comparisons between affected and control subjects in different populations. This may help us to understand the reasons for the variation, and a better understanding of the genetic processes underlying the disease process.
The aims of this study were to assess the value of specimen radiographs of stereotactic core biopsy, the usefulness of measuring size of calcifications on tissue sections, whether demonstration of calcifications in tissue sections alters the pathological diagnosis when specimen radiograph demonstrates calcifications, and to correlate these assessments with diagnostic outcome. A total of 301 core biopsies from 266 women with 274 mammographically suspicious areas of calcifications were examined. Core biopsies (five cores per procedure) were obtained stereotactically using a 14-gauge needle in an automated Biopty gun. Prior to processing of the tissue, 214 core biopsy specimens from 193 women with 197 lesions were radiographed. Of the 301 core biopsies, 56 (19%) were diagnosed as malignant, 15 (5%) were diagnosed as atypical ductal hyperplasia and 230 (76%) contained benign breast tissue. Of the core biopsies diagnosed as benign, 160 (70%) had specimen radiography prior to processing. Of these, 109 (69%) core biopsies showed calcifications on specimen radiographs. In 96 (88%) of these core biopsies, calcifications measuring > 100 microm were found on the initial tissue sections. In 11 (10%) further deeper sections were required to detect calcifications > 100 microm; however, this did not result in a change of the pathological diagnosis. Two of the 109 (1.8%) "benign" core biopsies, which contained tissue calcifications > 100 microm and at that time were considered representative of the mammographic lesion, have had a malignant outcome on clinical and mammographic follow-up ranging from 2.4 to 7.5 years. Of the 51 (31%) core biopsies where calcifications were not seen on specimen radiographs, histological calcifications were not found in 34 (67%) core biopsies, whereas in 17 (33%) core biopsies, calcifications measuring < 100 microm were found. All of these core biopsies were considered non-diagnostic and therefore not representative of the lesion targeted. Five (9.8%) of these cases had a malignant outcome with either immediate rebiopsy or excision. Accurate diagnosis of all mammographic lesions requires radiological-pathological correlation. This study shows that the presence of calcifications on the specimen radiograph and the demonstration of tissue calcifications > 100 microm are an essential and highly reliable part of core biopsy assessment for mammographically "suspicious" calcifications. Nevertheless, lesions with "highly suspicious" calcifications on mammography should be considered for excision even if the core biopsy diagnosis is benign and calcifications > 100 microm are present.
Various glomerular lesions are described in association with malignancy. We report a rare case of crescentic glomerulonephritis occurring in association with renal cell carcinoma. A granular deposition of immune complexes and complement strongly suggests a tumor associated immune complex glomerulonephritis.