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Biomedical subjects

Anil Sharma

Publications and source records attributed to Anil Sharma.

At least 19 recordsLinked to original sources

High dose rate brachytherapy as a boost for the treatment of localized prostate cancer.

PURPOSE: We report the outcome and toxicities of high dose rate brachytherapy as a boost for localized prostate cancer. MATERIALS AND METHODS: Between 1996 and 2003, 309 patients with prostate carcinoma were treated with external beam radiation therapy and high dose rate brachytherapy. Furthermore, 36% of the patients received neoadjuvant/concurrent or adjuvant androgen deprivation therapy. Patients were stratified into 3 groups. Group 1 of 67 patients had Gleason score 6 or less, pretreatment prostate specific antigen 10 ng/ml or less and clinical stage T2a or less. Group 2 of 109 patients had Gleason score 7 or greater, pretreatment prostate specific antigen greater than 10 ng/ml and clinical stage T2b or greater. Group 3 of 133 patients had 2 or more of these higher risk factors. RESULTS: At a median followup of 59 months the 5-year biochemical control rate, as defined by the American Society for Therapeutic Radiation and Oncology, was 86%, cause specific survival was 98% and overall survival was 91%. Biochemical control in stratified groups 1 to 3 was 98%, 90% and 78%, respectively. On univariate analysis risk group, pretreatment prostate specific antigen and Gleason score were significant predictors of biochemical control. However, on multivariate analysis only risk group and pretreatment prostate specific antigen were significant. Using the Common Toxicity Criteria scale there were 2 cases of grade 3 acute urinary toxicity. Regarding late side effects 4% of patients had grade 3 genitourinary toxicity and 1 had a grade 4 rectal complication. CONCLUSIONS: External beam radiation therapy and high dose rate brachytherapy for prostate cancer resulted in excellent biochemical control, cause specific survival and overall survival with minimal severe acute or late complications.

Adenocarcinoma↗

Laparoscopic management of cholecystoenteric fistulas.

BACKGROUND: Cholecystoenteric fistulas are a rare complication of gallstone disease and affect 3-5% of patients with cholelithiasis. Most fistulas are diagnosed intraoperatively. MATERIALS AND METHODS: Between January 1997 and June 2003, 12428 patients underwent laparoscopic cholecystectomy at our department. Cholecystoenteric fistula was diagnosed intraoperatively and treated in 63 patients: 45 patients (71.4%) had cholecystoduodenal fistulas, while cholecystogastric and cholecystocolic fistulas were found in 9 patients (14.3%) and 4 patients (6.3%), respectively; and 5 patients (7.9%) were found to have Mirizzi syndrome type I along with a cholecytoenteric fistula. The operation could be completed laparoscopically in 59 patients. An endostapler was used in 47 patients to transect the fistula and in 12 patients the defect in the bowel was repaired with intracorporeal sutures. RESULTS: Major morbidity occurred in 3 patients (4.76%). One patient developed a loculated subdiaphragmatic collection which was treated by ultrasound guided aspiration and antibiotic therapy. Prolonged biliary drainage occurred in 2 patients. In addition, 7 patients (11.11%) had minor postoperative complications. The mean postoperative hospital stay was 5.2 days. All the patients are asymptomatic at a mean follow-up of 2.4 years. CONCLUSION: Cholecystoenteric fistula is a difficult problem usually diagnosed intraoperatively. A high degree of suspicion at operation is mandatory. A stapled cholecystofistulectomy may be the procedure of choice since it avoids contamination of the peritoneal cavity. Complete laparoscopic management of cholecystoenteric fistulas is possible in well-equipped high-volume centers.

Adult↗

A rare psoas hernia: endoscopic diagnosis and management.

Of the various traumatic injuries associated with blunt abdominal trauma, traumatic hernias form a rare and small group. We present a case report of a hernia in the psoas muscle in a 26-year-old lady diagnosed during extraperitoneal repair for inguinal hernia. The hernia was managed laparoscopically by reduction of contents and mesh placement over the defect. This is the first such case reported in the literature till date.

Adult↗

Mesh migration into the bladder after TEP repair: a rare case report.

Mesh migration after laparoscopic inguinal hernia repair is an unusual complication. We report a case of a 45-year-old man with persistent discharging of abdominal wall sinus after total extraperitoneal inguinal hernia repair. The patient underwent exploration and excision of the sinus tract with removal of the embedded mesh. A part of the mesh had migrated into the urinary bladder. Partial cystectomy with excision of wall containing the mesh was performed.

Cystectomy↗

Salvage high-dose-rate (HDR) brachytherapy for recurrent head-and-neck cancer.

BACKGROUND: A significant portion of head-and-neck cancer patients will develop persistent or recurrent disease after definitive treatment. Radiation therapy is often used as definitive therapy or as an adjunct to surgery. Recurrent cancer of the head and neck in the previously irradiated field is, thus, a common occurrence and poses a therapeutic challenge. Some studies have evaluated low-dose-rate (LDR) brachytherapy as a therapeutic option, including a large case series with long-term follow-up by our own institution. High-dose-rate (HDR) brachytherapy offers therapeutic advantages over LDR brachytherapy. This study evaluates the local control and outcomes of patients with previously irradiated recurrent head-and-neck cancer treated with HDR interstitial brachytherapy. METHODS AND MATERIALS: Between 1997 and 2002, 30 patients who received prior radiation therapy for primary tumors of the head and neck were treated for biopsy-proven recurrent disease. All patients received previous radiation as definitive therapy alone or as adjunct to surgery. All patients were inoperable, refused surgery, or had gross residual disease after salvage surgery for their recurrent disease. Thirty-six sites on the 30 patients were implanted by application of high-dose-rate interstitial brachytherapy techniques with mean tumor dose of 34 Gy (18-48 Gy) in twice daily fractions of 300 to 400 cGy per fraction. RESULTS: At a minimum follow-up of 12 months, local tumor control was achieved in 69% of implanted sites. Disease-specific survival at 1 and 2 years was 54% and 45%, respectively. Overall survival at 1 and 2 years was 56% and 37%, respectively. Grade 3/4 late complications occurred in 16% of the patients. No fatal complications occurred. CONCLUSION: HDR brachytherapy can play an important role in the salvage treatment of previously irradiated recurrent head-and-neck cancer. This study shows that comparable results are obtained by HDR brachytherapy with fewer late complications than were indicated by previously reported data for LDR brachytherapy.

Adenocarcinoma↗

Laparoscopic repair of diaphragmatic hernias: experience of six cases.

OBJECTIVE: Laparoscopic diaphragmatic hernia repair is increasingly performed in adults for congenital diaphragmatic hernias and chronic traumatic diaphragmatic hernias. This study reviewed our experience with laparoscopic diaphragmatic hernia repair to evaluate its safety, efficacy and outcomes. METHODS: Between January 1999 and December 2002, four male and two female patients presented to us with diaphragmatic hernias, three with traumatic and three with congenital hernias. The mean age of patients was 58.6 years (range, 42-83 years). Five patients presented with main complaints of postprandial retrosternal/chest discomfort and one patient had an acute gastric outlet obstruction. Dissection was performed laparoscopically to reduce the contents of the sac and the hernial defect was repaired using prolene sutures and a polypropylene mesh. RESULTS: Laparoscopic repair of diaphragmatic hernias was completed successfully in all patients. The mean size of the defect was 6.8 cm (range, 3-12 cm) and the mean operative time was 100 minutes (range, 60-150 minutes). There were no major intraoperative complications. One patient required placement of a chest tube due to inadvertent opening of the pleura with the hernial sac and one patient had prolonged postoperative gastric ileus. The mean hospital stay was 2.3 days (range, 1-4 days) and the mean pain score was 4 (range, 2-6). All patients remained asymptomatic over a mean follow-up of 2.9 years. CONCLUSION: Adult congenital and chronic traumatic diaphragmatic hernias are amenable to laparoscopic repair. Laparoscopic repair is safe and feasible and confers all the advantages of minimal access surgery.

Adult↗

Laparoscopic splenectomy for hematologic disorders: experience with the first fifty patients.

BACKGROUND: Splenectomy is increasingly being performed by various minimal access surgical modalities for select hematologic disorders. METHODS: A retrospective analysis was performed on the first 50 patients on whom laparoscopic splenectomy (LS) was attempted. The data studied included indications for surgery, patient demographics, intraoperative parameters, and patient outcomes. A total laparoscopic approach (TLS) was employed in 38 patients and a hand-assisted technique (HALS) was used in 12 patients with massive splenomegaly. Eight patients had concomitant surgical procedures: 7 patients underwent laparoscopic cholecystectomy and 1 patient received a kidney transplant. The most common indications for LS were idiopathic thrombocytopenic purpura (ITP) (50%) and hereditary spherocytosis (24%). RESULTS: LS was successfully completed in 48 patients (96%). Thirty-four patients (68%) required perioperative blood or platelet transfusions. The mean spleen diameter was 17.1 cm (range, 11.2-28.4 cm) on imaging study and mean intact splenic weight was 1019 gm. The mean operative time was 188 minutes (range, 90-340 minutes) in the TLS group and 171 minutes (range, 120-240 minutes) in the HALS group. The mean intraoperative blood loss was 306 mL (range, 40-640 mL) in the TLS group and 163 mL (range, 100-300 mL) in the HALS group. The mean postoperative hospital stay was 3.2 days (range, 2-5 days). CONCLUSION: TLS is safe and feasible in patients with nonpalpable spleens. A concomitant laparoscopic procedure for treating coexisting abdominal pathology may be performed without additional morbidity. The HALS technique may be preferable in patients with splenomegaly (palpable spleens), as it appears to offer intraoperative advantages for retraction, dissection, hemostasis, and organ retrieval.

Blood Loss, Surgical↗

Laparoscopic cholecystectomy in a patient with ankylosing spondylitis with severe spinal deformity.

Laparoscopic cholecystectomy is the current gold standard for the management of cholelithiasis. As experience with laparoscopic cholecystectomy has increased, contraindications to the procedure have started decreasing. Kyphoscoliosis with fixed rigidity is considered as a relative contraindication to laparoscopic surgery. Ankylosing spondylitis is a challenge to the anaesthesiologist because it is associated with difficult intubation, restrictive ventilatory defects, and frequent cardiac involvement. The benefits of laparoscopic surgery can be extended to this group of patients with severe kyphoscoliosis due to advances in anesthesia and surgical expertise. We report a case of laparoscopic cholecystectomy performed in a patient with severe ankylosing spondylitis with fixed rigidity of the cervical spine and marked thoracolumbar kyphosis with severe restrictive lung disease. The purpose of this report is to describe the difficulties encountered in anesthesia and operative difficulties due to altered body habitus in terms of patient positioning and surgical access.

Cholecystectomy, Laparoscopic↗

Endoscopic management of a retroperitoneal hydatid cyst.

Hydatid cyst is a significant health problem in endemic regions. Although progress has been made in medical treatment and interventional radiology techniques, surgery is currently the treatment of choice. The hydatid cysts are known to occur at several unusual sites in the body. With increasing experience in laparoscopy and retroperitoneoscopy, attempts have been made to offer the advantages of minimal access procedures to hydatid disease patients. We present a case report of such a patient whose retroperitoneal hydatid cyst was removed endoscopically.

Echinococcosis↗

Endoscopic totally extraperitoneal repair for occult bilateral obturator hernias and multiple groin hernias.

INTRODUCTION: An obturator hernia is a rare hernia that is bilateral in about 6% of patients. Most patients present with chronic pelvic pain although a few patients may present with features of intestinal obstruction. Only about 10% of obturator hernias are diagnosed preoperatively. METHODS: A 65-year-old female patient with chronic obstructive pulmonary disease presented with bilateral groin swellings associated with local pain and heaviness. She also suffered from recurrent episodes of abdominal distension. She was diagnosed to have bilateral direct inguinal hernias and a left femoral hernia. At endoscopy under epidural anesthesia she was found to have a direct inguinal, an indirect inguinal, and a femoral hernia on the left side and an indirect inguinal hernia on the right side. Additionally, the endoscopic totally extraperitoneal approach to inguinal hernias identified hitherto undiagnosed bilateral obturator hernias. The hernias were reduced and polypropylene mesh was placed bilaterally covering the myopectineal orifice and pelvic floor bilaterally. RESULTS: The patient was discharged the next day and is symptom-free on followup at eight months. CONCLUSION: Endoscopic repair of groin hernias allows the surgeon not only to diagnose and treat unsuspected groin hernias but also allows identification, dissection, and repair of coincidental occult pelvic hernias like obturator hernias at the same time.

Aged↗

Abandoned endoscopic procedures.

Intraoperatively, it may be prudent at times to abandon or defer the intended therapeutic procedure due to adverse prevailing conditions. A decision to abandon or defer an endoscopic procedure would necessarily result in less morbidity compared with conventional open surgery. A retrospective review of endoscopic procedures that were abandoned or deferred and subsequent patient outcomes were noted. Between January 1998 to May 2003, 48 procedures out of a total of 11,550 endoscopic surgical procedures had to be abandoned. Previously unsuspected intraabdominal malignancy was the cause in 32 patients. Anesthesia-related problems led to the decision in 6 patients. Coincidental tuberculosis and failure in accessing the target organ were the cause in two patients each. An ectopic gallbladder, an absent gallbladder, a pancreatic phlegmon, and a failure to achieve proper single-lung ventilation led to the decision in one patient each. In two patients, presence of dense intraabdominal adhesions that precluded further progress led the surgeon to abandon the surgery. The patients with intraabdominal malignancy were staged for their disease and treated accordingly. Nine patients without malignancy who had their operation deferred due to diverse reasons were operated on a later date, whereas 4 patients were lost to follow-up. The 9 patients who underwent operation at a later date are well on follow-up. Four patients with intraabdominal malignancy died, whereas the others are well in follow-up after being treated according to the stage of their disease. Certain adverse situation encountered intraoperatively may lead the surgeon to change the approach to surgery and abandon the procedure. He may consider operation at a suitable time later or consider a different treatment altogether. The morbidity consequent to such a decision is much less if the operative approach is an endoscopic one.

Adolescent↗

Ectopic gallbladder: laparoscopic cholecystectomy.

An unusual case of ectopic retroplaced gall bladder is reported. In our patient, this congenital anomaly was detected on ultrasonography and confirmed by CT scan, MRCP, and ERCP. Laparoscopic cholecystectomy was performed without complications. The importance of proper preoperative investigations is emphasized for accurate diagnosis, to rule out biliary tract anomalies, and to properly plan surgical approach and management.

Adult↗

Levonorgestrel-releasing intrauterine system for treating menstrual disorders: a patient satisfaction questionnaire.

AIMS: To establish the continuation and satisfaction rates and the reasons for removal of the levonorgestrel-releasing intrauterine system (LNG-IUS) in Palmerston North Hospital (PNH), New Zealand. SAMPLE AND SETTING: All women (120) who had a LNG-IUS inserted at PNH between June 1998 and June 2002 were included in the study. METHODS: A survey questionnaire regarding bleeding patterns, side-effects and satisfaction rates relating to the device as well as reasons for premature removal, current treatment for dysfunctional uterine bleeding (DUB) and contraception was sent to all 120 women. Seventy-eight of the 85 women who received the questionnaire (91%) responded to it. Thirty-five women were lost to follow-up and the overall response rate was 65%. RESULTS: The LNG-IUS was prematurely removed from nine women and expulsion occurred in one case. The overall continuation rate was 87%. No women had LNG-IUS removed as a result of hormonal side-effects except for bleeding abnormalities. The overall satisfaction rate was 76%. CONCLUSION: Levonorgestrel-releasing intrauterine system is a well-accepted and efficacious therapy for heavy menstrual bleeding. These satisfaction and premature removal rates compare favourably with international figures. The response rate to the questionnaire was reasonably high given the highly mobile nature of the studied population.

Contraceptive Agents, Female↗

Development and validation of NEWSQOL, the Newcastle Stroke-Specific Quality of Life Measure.

BACKGROUND: A review of stroke-specific quality of life (QOL) measures indicated little evidence of their validity/reliability. PURPOSE: To describe the development/validation of a new measure - the Newcastle Stroke-Specific Quality of Life Measure (NEWSQOL). METHODS: Phase I: qualitative interviews (28 stroke patients) determined QOL issues for inclusion in the measure. Initial items/response categories were pre-tested (30 patients). Administration of the NEWSQOL in the item reduction stage (100 patients) identified poorly performing items and factor analysis showed likely domains. Internal consistency was examined. Phase II: NEWSQOL and comparator measures were administered (106 patients) to examine validity/test-retest reliability. RESULTS: Phase I: 140 items were identified for initial inclusion. Qualitative pre-testing led to an extensive revision. Item reduction resulted in a final measure of 56 items in 11 domains (feelings, activities of daily living/self-care, cognition, mobility, emotion, sleep, interpersonal relationships, communication, pain/sensation, vision, fatigue; Cronbach's alpha = 0.71-0.90). Phase II: NEWSQOL domain scores, except cognition, were moderately/highly correlated (0.45-0.76) with relevant comparator measures. NEWSQOL domains feelings, communication and cognition low/moderately correlated with Barthel Index scores (-0.49 to -0.28), as predicted. Test-retest reliability was high (intraclass correlation coefficient range 0.78-0.92). CONCLUSIONS: NEWSQOL is an acceptable, patient-derived, interviewer-administered, stroke-specific QOL measure with evidence of reliability and validity, making it a promising instrument for assessing QOL after stroke. Involvement of relevant patients in determining the content and format considerably enhances confidence in its validity.

Adult↗

Use of fractional flow reserve versus stress perfusion scintigraphy after unstable angina. Effect on duration of hospitalization, cost, procedural characteristics, and clinical outcome.

OBJECTIVES: The present study sought to determine the value of fractional flow reserve (FFR) compared with stress perfusion scintigraphy (SPS) in patients with recent unstable angina/non-ST-segment elevation myocardial infarction (UA/NSTEMI). BACKGROUND: Fractional flow reserve, an invasive index of stenosis severity, is a reliable surrogate for SPS in patients with normal left ventricular function. An FFR > or = 0.75 can distinguish patients after myocardial infarction (MI) with a positive SPS from those with a negative SPS. However, the use of FFR has not been investigated after UA/NSTEMI. METHODS: Seventy patients who had recent UA/NSTEMI and an intermediate single-vessel stenosis were randomized to either SPS (n = 35) or FFR (n = 35). Patients in the SPS group were discharged if the SPS revealed no ischemia, whereas those in the FFR group were discharged if the FFR was > or = 0.75. Patients with a positive SPS and those with an FFR <0.75 underwent percutaneous transluminal coronary angioplasty. The use of FFR markedly reduced the duration and cost of hospitalization compared with SPS (11 +/- 2 h vs. 49 +/- 5 h [-77%], p < 0.001; and 1,329 US dollars +/- 44 US dollars vs. 2,113 US dollars +/- 120 US dollars, respectively, p < 0.05). There were no significant differences in procedure time, radiation exposure time, or event rates during follow-up, including death, MI, or revascularization. CONCLUSIONS: These data indicate that: 1) the use of FFR in patients with recent UA/NSTEMI markedly reduces the duration and cost of hospitalization compared with SPS; and 2) these benefits are not associated with an increase in procedure time, radiation exposure time, or clinical event rates.

Adult↗

Recurrent hernia following endoscopic total extraperitoneal repair.

BACKGROUND AND PURPOSE: A retrospective study was conducted to identify the reasons for recurrence following endoscopic total extraperitoneal (TEP) repair of inguinal hernias and to develop a strategy to prevent recurrence. METHOD: Between January 1996 and December 2001, 1193 TEP hernia repairs were performed in 694 patients. Following reduction of the hernia sac and dissection of the preperitoneal space up to the psoas muscles laterally, a Prolene mesh (15 x 15 cm) was placed. The mesh was fixed medially to the Cooper ligament with two or three spiral tacks. In six patients, the hernia recurred following endoscopic TEP repair within the same period. Four of these patients elected to undergo laparoscopic transabdominal preperitoneal (TAPP) repair of the recurrent hernia. RESULTS: Medial recurrences developed in three of the four patients because of medial displacement of the mesh. One patient was found to have a missed indirect hernia sac. All the patients who underwent laparoscopic TAPP repair had an uneventful recovery and are well at follow-up. CONCLUSION: In addition to medial fixation of the mesh to the Cooper ligament, complete proximal dissection of the peritoneum from the spermatic cord and additional fixation of the mesh to the anterior abdominal wall, with careful avoidance of possible injury to the adjacent nerves, may prevent recurrences.

Adult↗

Laparoscopic reintervention for residual gallstone disease.

Laparoscopic reintervention is being increasingly performed in patients who have previously undergone surgery for gallstone disease. A few patients with gallbladder remnants or a cystic duct stump with residual stones have recurrent symptoms of biliary disease. Patients with bile duct injuries were excluded from the study. We reviewed our experience in treating such patients over a 4-year period, January 1998 through December 2001. Five patients underwent laparoscopic reintervention after previous surgery for gallstone disease performed elsewhere during the period mentioned above. Of these 5 patients, 3 had impacted stones in gallbladder remnants (laparoscopic cholecystectomy, 2; open cholecystectomy, 1) and 2 had recurrent symptoms after cholecystolithotomy and tube cholecystostomy (conventional surgery) performed elsewhere. Laparoscopic excision of the gall bladder remnants was done in 3 patients and a formal laparoscopic cholecystectomy was done in 2 patients who had previously undergone cholecystolithotomy and tube cholecystostomy. The mean operating time was 42 minutes. No drainage was required postoperatively. All patients were symptom-free during a mean follow-up of 2.3 years (range, 7 months to 4 years). Reintervention may be required for patients with residual gallstones whose symptoms recur after gallbladder surgery such as cholecystectomy, subtotal cholecystectomy, and tube cholecystostomy. It is safe and feasible to remove the gallbladder or gallbladder remnants in such patients laparoscopically.

Adult↗