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At least 73 records · Page 4Linked to original sources
PubMed2000

Revascularization using the short gastric vessels of the gastric tube after subtotal esophagectomy for intrathoracic esophageal carcinoma.

BACKGROUND: Maintaining sufficient blood flow to the substitutive organ after esophagectomy is essential to decrease the risk of anastomotic leakage. STUDY DESIGN: Forty-one patients underwent subtotal esophagectomy for intrathoracic esophageal carcinoma and reconstruction using the gastric tube. Additional vascular anastomosis between the short gastric vessels and the vessels in the neck was performed in 15 patients. Tissue blood flow was measured by laser Doppler flowmetry before and after vascular anastomosis. The incidence of anastomotic leakage in the revascularization group was compared with that in the remaining 26 patients. RESULTS: Venous anastomosis was performed in 14 patients and arterial anastomosis in 9. There was a significant increase in tissue blood flow after venous anastomosis alone (mean percent increase: 36%; p < 0.01), and after arterial and venous anastomoses (mean percent increase: 108%; p < 0.01). No anastomotic leakage was observed in the revascularization group; six patients (23.1%) in the control group had leakage (p < 0.05). Patients in the revascularization group started taking a meal 10.0 +/- 0.4 days postoperatively, compared with 15.1 +/- 1.8 days in the control group (p < 0.05). CONCLUSIONS: Additional vascular anastomosis in esophageal reconstruction after subtotal esophagectomy achieved good results. This procedure can reduce the risk of anastomotic leakage and may be useful for esophageal reconstruction.

Aged↗
PubMedDate not supplied

Clinical outcome and long-term survival rates after esophagectomy are not determined by age over 70 years.

Esophagectomy is considered a high-risk procedure in patients aged 70 years or older. This study evaluates the impact of two age groups (younger than 70 and 70 years or older) on clinical outcome and long-term survival rates following this procedure. This prospective study included survival analysis and clinical evaluations at 3, 6, and 12 months after esophagectomy. All esophagectomy patients undergoing gastric (n = 125), jejunal (n = 10), or colonic (n = 4) reconstructions at our institution from 1984 to 1996 were included. Fifty patients were older than 70 years, 89 were younger, and 120 of these 139 patients had tumors. The overall hospital mortality rate was 1.4% (2 of 139), both in the younger age group. All leaks from anastomoses and grafts were nonfatal, and these problems occurred in seven patients in the younger age group and two in the older group. The mean preoperative weight was 70 kg, and there was a mean weight loss of 5 kg during the first three postoperative months only but none thereafter (P <0.001). This was the same for patients with benign and malignant disorders, and for those aged over or under 70 years. Between 71% and 77% of the patients experienced no dysphagia at the three evaluations during the first postoperative year. The distribution of the different grades of dysphagia was equal in the two age groups at 3-month (P = 0.339) and 12-month (P = 0.669) follow-up. The 12-year survival rate was 28% and the 5-year rate was 31%, and this was correlated to tumor stage (P = 0.002) but not to age over or under 70 years (P = 0.299). The clinical outcome was the same regardless of whether patients were over or under 70 years of age. Tumor stage but not age over 70 years was the major predictive factor for long-term survival.

Age Factors↗
PubMedDate not supplied

Organ-preserving resection of the gastroesophageal junction and substitution with a gastric corpus rotation tube: an experimental study.

Premalignant lesions of the gastroesophageal junction are treated conservatively or by antireflux surgical procedures. We describe a novel technique that replaces the distal esophagus after resection of the gastroesophageal junction. After resection of the gastroesophageal junction, 16 pigs were divided into two groups. In group 1 (n = 9) the gastroesophageal junction was replaced with a 3 cm wide horizontal gastric corpus tube, pedicled at the lesser curvature. In group 2 (n = 7) the tube was pedicled at the greater curvature. Tube length, volume, and compliance of the gastric remnant and blood flow in the tube (by laser Doppler flowmetry given in perfusion units [PU]) were measured before and after tube formation and 2 weeks postoperatively. Group 1 tubes were 9.5 +/- 1. 5 cm long and group 2 tubes were 8.2 +/- 0.7 cm long. Tube formation decreased volume and compliance of the gastric remnant. After tube formation, blood flow at the tip of the tube decreased from 254 PU to 64 +/- 22 PU (group 1) and 87 +/- 36 PU (group 2). Volume, compliance, and blood flow returned to baseline values 2 weeks postoperatively. No anastomotic leakage was found on postmortem examination. Horizontal gastric corpus tubes might offer an alternative to replace the distal esophagus and proximal stomach after resection of premalignant lesions of the gastroesophageal junction.

Animals↗
PubMed2002

Urethral recurrence after sigmoid orthotopic neobladder. What should be the ideal treatment approach?

Orthotopic neobladder reconstruction has become a standard procedure in patients undergoing radical cystectomy for invasive bladder cancer. In addition the known sequelae like nocturnal enuresis, need of self-intermittent catherisation and stricture at urethro or ureteroileal anastomosis, one of the most unfortunate event to happen is the recurrence of malignancy that may require the removal of the neobladder lessening the quality of life suddenly. There is a little information about the cases of urethral recurrence of transitional cell carcinoma of the bladder after cystectomy and orthotopic neobladder. We report such a case and management dilemma as the patient is young and does not want to loose body image and a brief review of literature is presented.

Adult↗
PubMed1999

Prosthesis implantation after radial free flap phalloplasty in patients with bladder exstrophy.

METHODS: Inflatable penile prosthesis were implanted into sensate radial free-flap phalloplasties in two adult patients with bladder exstrophy. RESULTS: Neither patient reported loss of sensation, and both were able to inflate the prosthesis and engage in sexual intercourse three months later. CONCLUSION: The construction of a functional neophallus is well described however has not previously been reported in exstrophy patients who are suited to this procedure due to the presence of crura, and the absence of a neourethra. Scarring from previous reconstructive procedures however may make implantation difficult, and long-term follow up is required to evaluate this procedure in patients with bladder exstrophy.

Adult↗
PubMed2000

Clinical, urodynamic and endoscopic characteristics of the stanford pouch ileal neobladder constructed with absorbable staples.

PURPOSE: The clinical, urodynamic and endoscopic aspects of the Stanford pouch ileal neobladder formed with absorbable staples were investigated. METHODS: A Stanford pouch ileal neobladder was formed using absorbable staples after radical cystoprostatectomy in 30 male patients with the diagnosis of muscle invasive carcinoma of the bladder between 1995 and 1998. The mean age of the patients was 62 (range 41-70) years. Patients were followed with arterial blood gas, serum biochemistry, pouch cystography, urodynamic tests and endoscopy. RESULTS: Five (16.7%) patients had early postoperative complications and three were related to the neobladder. One year postoperatively, low grade (I, II) vesicoureteral reflux was present in five (16.7%) cases. The mean preoperative and 6 months postoperative serum creatinine levels were 1.07+/-0.3 mg/dL and 1.2+/-0.4 mg/dL, respectively, but the difference was not statistically significant (P=0.1). Six months postoperatively the mean serum chloride level was 109+/-4.5 (range 100-113) mmol/L and the mean arterial blood pH was 7.37+/-0.2 (range 7.3-7.4). Two (6.7%) patients required oral alkaline supplementation because of high chloride levels. All the patients except one were continent throughout the day after 1 year. However, nocturnal enuresis was present in 25 (83.3%) cases. The pouch capacity was increased gradually up to 12 months postoperatively and the mean pouch capacity 12 months postoperatively was 460+/-95.8mL. Micturition occurred spontaneously in most patients while some needed abdominal straining. None of the patients had a residual urine of more than 60 mL. The mean maximum flow rate 6 months postoperatively was 9.8 (range 5.4-15.0) mL/s. After 6 months the stapled edge was noticed as a nodular line. One year postoperatively only a white scar could be observed at the suture line. CONCLUSION: The Stanford pouch ileal neobladder constructed using absorbable staples was able to provide a good capacity low pressure reservoir with a low rate of complications.

Absorbable Implants↗
PubMed1999

Three parameters optimizing closed-loop control in sequential segmental neuromuscular stimulation.

In conventional dynamic myoplasties, the force generation is poorly controlled. This causes unnecessary fatigue of the transposed/transplanted electrically stimulated muscles and causes damage to the involved tissues. We introduced sequential segmental neuromuscular stimulation (SSNS) to reduce muscle fatigue by allowing part of the muscle to rest periodically while the other parts work. Despite this improvement, we hypothesize that fatigue could be further reduced in some applications of dynamic myoplasty if the muscles were made to contract according to need. The first necessary step is to gain appropriate control over the contractile activity of the dynamic myoplasty. Therefore, closed-loop control was tested on a sequentially stimulated neosphincter to strive for the best possible control over the amount of generated pressure. A selection of parameters was validated for optimizing control. We concluded that the frequency of corrections, the threshold for corrections, and the transition time are meaningful parameters in the controlling algorithm of the closed-loop control in a sequentially stimulated myoplasty.

Algorithms↗
PubMed2002

Vaginal reconstruction utilizing sigmoid colon: Complications and long-term results.

BACKGROUND/PURPOSE: The use of sigmoid colon segments to repair congenital deformities of the vagina is well established. There are little data, however, on complications or functional results in these patients. The purpose of this study was to evaluate complication rates and long-term patient outcomes in the use of sigmoid segments in vaginal reconstruction for congenital anomalies. METHODS: The authors identified 28 patients who underwent vaginal reconstruction with sigmoid colon segments between 1985 and 2000 at their institution. Patient charts were reviewed for surgical technique, complication rates, cosmetic results, functional results, and psychosocial development. Patients were recalled for physical examinations and personal interviews to assess current status. RESULTS: Of the 28 patients, 13 had male pseudohermaphroditism, 6 had Mayer-Rokitansky-Kuster-Hauser syndrome, 2 had true hermaphroditism, 2 had mixed gonadal dysgenesis, 2 had common urogenital sinus syndrome, 2 had adrenogenital syndrome, and 1 had penile agenesis. Mean patient age was 16 years (range, 6 to 21 years). Mean follow-up was 6.2 years (range, 2 months to 15 years). Postoperative complications included introital stenosis (4 patients), mucosal prolapse (4), partial small bowel obstruction (2), perineal wound hematoma (2), superficial wound infection (2), and vaginal prolapse (1). None of the complications have affected long-term patency or cosmesis of the neovagina, nor has mucous production significantly affected quality of life. Fourteen of 16 (88%) adult patients are heterosexually active, 1 is homosexually active, and 1 is asexual. Of the 14 heterosexually active patients, 11 (79%) are "very satisfied" with their psychosexual development and 3 are "comfortable." Four patients are married, and 1 has carried a child to term. All adult patients felt that the appropriate time to undergo surgery was in adolescence. CONCLUSIONS: Reconstruction with sigmoid segments is an effective approach for many congenital conditions requiring vaginal reconstruction. Although surgical outcomes are not perfect, appropriately timed reconstructive vaginal surgery can provide most patients with an improved quality of life. For the best long-term results, a multidisciplinary team must be available from infancy to supply comprehensive support.

Adolescent↗
PubMed2003

Reconstruction of burr hole by using autologous button-shaped graft harvested from inner table of craniotomy flap: technique and clinical result.

Patients who underwent craniotomy occasionally complain about the postoperative cosmetic appearance at the site of burr holes on the scalp. This problem occurs as a result of depletion of the skin into the unreconstructed burr holes. Some materials have been developed for reconstruction of craniotomy burr holes. To prevent the postoperative cosmetic deformity, the authors developed a button-shaped autologous bone graft harvested from the inner table of craniotomy flap. Clinical application of this method is described.

Bone Transplantation↗
PubMed1999

Feminizing genital reconstruction, sigmoid vaginal replacement and anorectoplasty as a one-stage procedure for anorectal atresia associated with ambiguous genitalia.

Anorectal atresia associated with male pseudohermaphroditism presents both diagnostic and surgical challenges. In the past, multiple operations were necessary for feminizing genitoplasty in gender-reassigned children with ambiguous genitalia. We combined the repair of an imperforate anus with a feminizing genitoplasty, including sigmoid vaginal replacement using the posterior sagittal approach in a 3-months-old infant. We conclude that a primary complete reconstruction is advantageous and should be performed in this condition.

Anus, Imperforate↗
PubMed2001

Vaginal creation for müllerian agenesis.

OBJECTIVE: The purpose of this study was to determine the effectiveness of passive vaginal dilation and McIndoe vaginoplasty in the creation of a neovagina for patients with müllerian agenesis. STUDY DESIGN: Fifty-one patients with Mayer-Rokitansky-Kuster-Hauser syndrome were treated for vaginal agenesis at either Johns Hopkins Hospital or Emory University. These historic prospective data were obtained by a review of medical records and a current office or telephone consultation. Initial office visits dated from November 18, 1983, through June 6, 1998. Their progress towards both anatomic and functional success was followed through August 1, 2000, which was a range of 2 to 16.8 years. One-way analysis of variance, Student t test, and logistic regression analysis were performed when appropriate. RESULTS: Four patients were lost to follow-up in various stages of the treatment. Ten patients refused vaginal dilation and proceeded to a successful modified McIndoe vaginoplasty. Of the 37 remaining patients, 91.9% anatomic and functional success was achieved from the Ingram method for vaginal dilation. Passive dilation failed in 8.1% of patients, who underwent a modified McIndoe vaginoplasty; all neovaginal creations were successful. All patients who underwent McIndoe vaginoplasty were compliant with postoperative vaginal form use. None of our patients lost vaginal space through contractions or loss of skin graft. Of those patients for whom dilation failed, only 1 patient discontinued the study because of bleeding and discomfort. In addition, only 1 patient from the 3 cases of failure had undergone a previous hymenotomy. Interestingly, 6 patients for whom dilation was successful (6/34 patients; 17.6%) had also undergone a previous hymenotomy. The mean follow-up time for all patients in this study was 111.1 +/- 7.2 months, with a range of 25 to 188 months. The mean follow-up time for those patients for whom dilation failed or who refused dilation was significantly lower at 64.5 +/- 9.5 and 65.3 +/- 18.5 months, respectively (P <.005). The mean time to successful dilation was 11.8 +/- 1.6 months with a range of 3 to 33 months. Although longer, no statistically significant difference was observed for dilation time in those patients for whom there was a failure to achieve anatomic or functional success (20.5 +/- 12.5 months; range, 8-33 months). CONCLUSION: These data reveal that passive dilation with the Ingram method is capable of creating an adequate vaginal canal in patients with vaginal agenesis, with respect to both function and anatomy even in those patients with a previous hymenotomy and resultant scar formation. Our modified McIndoe procedure has proved to be an excellent option for patients for whom conservative dilation techniques failed and who refuse to attempt any dilation. Interestingly, our data indicate that patients may now be trending toward immediate surgical correction rather than diligently using dilation techniques to create a vaginal space.

Dilatation↗
PubMed2003

Vaginoplasty with Interceed absorbable adhesion barrier for complete squamous epithelialization in vaginal agenesis.

OBJECTIVE: The purpose of this study was to present our experiences of an innovative surgical approach for vaginal agenesis with the use of Interceed absorbable adhesion barrier (Ethicon) to achieve a satisfactory neovagina. STUDY DESIGN: The current study involved 10 subjects who were diagnosed with vaginal agenesis. After the creation of a vaginal tunnel, a mold that had been wrapped with Interceed was placed in the neovagina. RESULTS: No operative and postoperative complications were encountered. The duration of the operation was < or =30 minutes, and blood loss was minimal. The postoperative hospital stay was only 2 days. Epithelialization of the neovagina was achieved 1 to 4 months after the operation, and all patients were satisfied with the outcome. The neovagina that was created with this procedure was not much different from the normal adult vagina as far as histologic and physiologic conditions are concerned. CONCLUSION: This innovative surgical procedure may be a potential alternative approach for the therapy of vaginal agenesis with the use of the absorbable adhesion barrier Interceed with excellent results.

Adolescent↗
PubMed2000

End-to-side pudendal nerve anastomosis for the creation of a new reinforcing anal sphincter in dogs.

BACKGROUND: An ideal reinforcing neo-sphincter should be innervated by the pudendal nerve to work in coordination with the external anal sphincter. The aim of this study was to create a skeletal muscle innervated by the pudendal nerve without inducing external anal sphincter morbidity. METHODS: Seven dogs were used. On the right side of each dog, the distal end of the transected nerve innervating the biceps femoris muscle was anastomosed to the perineural window of the pudendal nerve, where the epineurium was excised over a small area without injuring the funiculus. Reinnervation was studied 5 months after the operations. The left side of the dogs was used as a control. RESULTS: For all 7 dogs, there was no macroscopic difference detected in the external anal sphincter. For 6 dogs, the biceps femoris muscle was preserved after end-to-side pudendal nerve anastomosis. After the pudendal nerve central to the anastomosis site was electrically stimulated, the external anal sphincter contracted in all dogs. After end-to-side pudendal nerve anastomosis, the biceps femoris muscle contracted with the evoked potential in 5 dogs (71%) and demonstrated electric activity at rest in 3 dogs (43%), but there was no reflex activity after anal stimulation. The ratio of type 1 to type 2 muscle fiber in the biceps femoris muscle after end-to-side pudendal nerve anastomosis significantly changed and became the same as that in the external anal sphincter. The diameter of type 2 muscle fibers in the biceps femoris muscle significantly decreased after surgery. In addition, regenerated myelinated axons were observed in a cross section of the anastomosed nerve in 6 dogs. CONCLUSIONS: End-to-side pudendal nerve anastomosis is a promising technique for the creation of an anal sphincter in patients who have fecal incontinence. The technique preserved the original external anal sphincter and created a skeletal muscle that was innervated by the pudendal nerve in 71% of the dogs studied. This newly innervated skeletal muscle was capable of contracting in coordination with the original external anal sphincter on electric stimulation and also demonstrated characteristics closely similar to those of the external anal sphincter.

Anal Canal↗
PubMed2001

Surgically created double-orifice left atrioventricular valve: a valve-sparing repair in selected atrioventricular septal defects.

OBJECTIVES: Some features of the left atrioventricular valve (large mural leaflet, dystrophic tissue) represent a challenge for repair of atrioventricular septal defects without postoperative regurgitation. A retrospective study was conducted to evaluate the results of surgically creating a double-orifice left atrioventricular valve in such circumstances. Clinical results were analyzed according to valvular and subvalvular left atrioventricular valve measurements in pathologic specimens with atrioventricular septal defects. METHODS: Among 157 patients operated on for atrioventricular septal defect since October 1989, 10 patients underwent primary repair (n = 8) or reoperation (n = 2) by this procedure. Median age at repair was 3.3 years (0.1-33 years). Anatomic types were complete (n = 3), intermediate (n = 5), and partial (n = 2). Preoperative moderate to severe left atrioventricular valve regurgitation was present in 6 patients. After the repair (two-patch technique in complete atrioventricular septal defect, cleft closed in each case), these 10 patients were found to have moderate to severe residual regurgitation not amenable to repair by annuloplasty. The top edge of the mural leaflet was anchored to the facing free edge of the cleft. RESULTS: No hospital death or morbidity was observed. Left atrioventricular valve regurgitation was absent or trivial (8 patients) and mild (2 patients). Color-coded echocardiography did not show significant left atrioventricular valve stenosis. The mean diastolic pressure gradient across the left atrioventricular valve was 3.2 +/- 1.1 mm Hg (1.4-4.5 mm Hg). At a median follow-up of 72 months (6-91 months), there was 1 late death, unrelated to left atrioventricular valve malfunction, due to pulmonary vascular obstructive disease. Left atrioventricular valve regurgitation did not increase over time, except in 1 patient in whom regurgitation recently progressed from mild to moderate. At rest, the mean diastolic pressure gradient across the left atrioventricular valve was 3.8 +/- 2.9 mm Hg (1.5-11.2 mm Hg). One child had an early moderate stenosis without pulmonary hypertension. Studies on pathologic specimens (n = 34) indicated that long chordal lengths and large mural leaflet size are essential independent anatomic features to assess its feasibility. CONCLUSIONS: Surgical creation of a double-orifice left atrioventricular valve is an effective additional procedure for repair of atypical cases of atrioventricular septal defect. The operation may decrease the need for reoperation or left atrioventricular valve replacement.

Adult↗
PubMed2002

Laurence-Moon-Biedl syndrome with vaginal atresia.

A 15-year-old girl presented with the rare Laurence-Moon-Biedl syndrome, accompanied by vaginal atresia, and cervical dysgenesis. She was treated by hysterectomy and construction of a neovagina with bilateral pudendal thigh flaps. Two brothers and a sister (one of twins) were unaffected but the remaining brother also had the disease.

Adolescent↗
PubMed2001

Laparoscopic orthotopic ileal neobladder.

BACKGROUND AND PURPOSE: Orthotopic ileal neobladder is currently the preferred continent urinary diversion in suitable patients undergoing radical cystectomy for muscle-invasive bladder cancer. To our knowledge, presented herein is the initial report of laparoscopic orthotopic ileal neobladder following cystectomy that was performed completely intracorporeally in a porcine model. MATERIALS AND METHODS: The laparoscopic technique was developed in seven pigs. Subsequently, a long-term survival study was performed in 12 consecutive animals. Laparoscopic cystectomy was performed, preserving the urethral sphincter. An ileal segment of 35 cm (first three animals), 45 cm (next four), or 55 cm (final five animals) with adequate mesentery was isolated; and ileal continuity was restored intracorporeally by a stapled anastomosis. Ileal detubularization for construction of an ileal neobladder, urethroileal anastomosis, and bilateral stented ileoureteral anastomoses to a tubular Studer limb extension were all created completely intracorporeally using only laparoscopic free-hand suturing and knot-tying. Biochemical data (preoperative and serial postoperative hemoglobin, renal panel, blood gases), radiologic studies (intravenous urogram, retrograde pouchgram), functional measures (neobladder urodynamics, Whitaker pressure-flow study of both ureters), and microscopic evaluation of the neobladder and ureteroileal and urethroileal anastomotic sites were obtained to evaluate the long-term functional and anatomic outcome. RESULTS: Completely intracorporeal laparoscopic construction of an ileal orthotopic neobladder was successful in all 12 animals without intraoperative or early postoperative complications or open conversion. The mean operating time was 5.4 hours (range 4.5-6.5 hours), and the blood loss was minimal. All study pigs survived their predetermined follow-up period, ranging from 1 to 3 months. Late complications occurred in three animals: one port-site abscess and two cases of E. coli pyelonephritis and azotemia, leading to one death at 2 months. The mean serum creatinine concentrations were 1.33 mg/dL, 1.61 mg/dL, and 1.55 mg/dL at 1, 2, and 3 months, respectively. The mean neobladder capacity was 420 mL (range 250-700 mL) with pressures < or = 20 cm H2O (range 17-20 cm H2O). Pre-euthanasia Whitaker testing confirmed excellent drainage in all 24 ureters. No ileoureteral or ileourethral anastomotic strictures or leaks were noted on intravenous urography, retrograde pouchgram, or postmortem physical calibration of the anastomotic sites. Histologic examination confirmed excellent healing without obvious fibrosis. CONCLUSION: Laparoscopic construction of an orthotopic neobladder is feasible. The anatomic and functional outcome is excellent and comparable to that of open surgery. Clinical application is imminent.

Animals↗
PubMed2001

Recurrent urethral hairball and stone in a hypospadiac: management and prevention.

A 32-year-old perineal hypospadiac man presented with recurrent urethral hair growth, stone, and stricture with a history of multiple urethroplasties. He was treated by urethrolithotomy, internal urethrotomy, laser epilation of the hair-bearing urethral graft, closure of the fistula, and chemical depilation of the neourethral hair. A dilute solution of thioglycolate was prophylactically instilled into the neourethra at intervals of 3 months to ensure complete tricholysis and to prevent recurrent hair growth in the future.

Adult↗