Thursday, December 9, 2010

Laparoscopic Gastric Banding with Autonomy Needle Holder

Laparoscopic Gastric Banding with Autonomy Articulating Needle Holder by Dr. Dmitry Nepomnayshy.


differential diagnosis of a heavily pigmented iris lesion

Sectorial heterochromia, heavily pigmented nevus, and melanoma must be considered. The eye and its lesion must be reevaluated periodically - slit-lamp examination, gonioscopy, and intraocular pressure.

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Diagrams for Surgical Procedures of Chronic Pancreatitis

The selection of the operative procedure often depends on the surgeon's expertise and individual preference. There is some criteria that usually favor one type of surgery over another. When the pancreatic duct in the body or tail is dilated beyond 6 mm, the Puestow procedure is usually the most effective surgery . When disease occurs predominantly in the head, Frey's procedure is used. When there is a focal mass in the head without significant duct dilation, the Whipple procedure is most frequently used. Increasingly, Beger's procedure, which preserves the duodenum, is used as an alternative.

1-Whipple Procedure:
The most common pancreatic resection surgery is the Whipple procedure, which is performed for chronic pancreatitis with ductal strictures or amorphous inflammatory mass in the head for which distinction from cancer cannot be made preoperatively. However, many specialist pancreatic surgeons no longer consider this to be the most appropriate surgery for chronic pancreatitis.
Diagram of pylorus-preserving Whipple procedure. Classic Whipple procedure is shown in inset: It entails radical dissection of pancreatic head, adjacent nodes, right half of omentum, gall bladder, common bile duct, and most or all of duodenum followed by gastrojejunostomy/duodenojejunostomy (green arrow), pancreaticojejunostomy (blue arrow), and hepaticojejunostomy (red arrow). (Courtesy of the Office of Visual Media, Indiana University)

2-Beger's Procedure :
Beger's procedure is a less radical surgery with resection of the pancreatic head and preservation of the duodenum . After Beger's surgery, pain relief is seen in up to 85% of patients at 5-year follow-up , but the postoperative morbidity rate is 20%. A randomized study comparing Beger's and Whipple procedures showed similar results at 6 months except for better pain tolerance and glucose control in those treated with Beger's surgery.
Diagram of Beger's procedure. Pancreatic body and most of head have been resected. Sleeve of pancreas is left with duodenum to preserve blood supply for latter. This procedure is technically harder to perform than Whipple procedure. Note pancreaticojejunostomy (red arrows) at two sites of Roux limb (green arrow).

3-Puestow Procedure :
The Puestow procedure is a side-to-side longitudinal pancreaticojejunostomy that drains the pancreatic duct directly into a loop of jejunum . This procedure is best performed if the main pancreatic duct is significantly dilated, usually wider than 6 mm.
Diagram of Puestow procedure. Pancreas is filleted to expose main duct from neck to tail and ductal calculi are removed. Roux loop is anastomosed to "capsule" of pancreas with direct drainage of main and secondary pancreatic ducts into jejunum over 8- to 10-cm segment. Loop (arrows) lies anterior to pancreas.

4-Frey's Procedure :
Frey's procedure is a recently popularized procedure that combines partial resection of the pancreatic head with a longitudinal jejunostomy . The morbidity rate of Frey's procedure is approximately 9-22% , well below that of the Whipple procedure performed for chronic pancreatitis, for which the complication rate is 30-40% . Frey's procedure is contraindicated in the presence of duodenal or biliary stricture.
Diagram of pancreas after Frey's procedure. Head of pancreas is cored out (blue arrow) and pancreaticojejunostomy is created via Roux loop (green arrows). Procedure is best performed in patients with duct dilation of head and body.

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Temperature Podcast

Kumar and Clark's Clinical Medicine - 2009 Edition

The 7th edition of Kumar and Clark’s Clinical Medicine is a thoroughly updated, reworked and revised new edition of the first-prize winner in the Medicine category in the BMA 2006 Medical Book Competition. It is the market-leading comprehensive and authoritative single-volume textbook of internal medicine, consulted by students and doctors alike throughout the world. Covering the management of disease, based on an understanding of scientific principles, and including the latest developments in treatment, it is written for medical students and doctors preparing for specialist exams, but it is an ideal general reference text for all practising doctors. The new edition is part of Elsevier’s StudentConsult electronic community. StudentConsult titles come with full text online, a unique image library, case studies, questions and answers, online note-taking, and integration links to content in other disciplines – ideal for problem-based learning.

# Colour-coded chapters make the book attractive and easy to navigate.

# Drawings and photographs bring the subjects to life.

# Boxes and tables pull out and display important information.

# Clear headings and a comprehensive index allow the reader to pinpoint information quickly and accurately.

# The online version has been extended and updated as part of the Student Consult platform.

# Over 100 new illustrations.

# Five new contributors.

# Thoroughly updated, rewritten and revised to reflect changes in practice and approach.

# Online version with extra content, including animations and sounds, and fuller treatments of regionally specific medical problems such as malaria, SARS, TB, viral haemorrhagic (dengue) fever, leprosy, snake bite etc.

# Expanded input from the International Advisory Panel of experts from around the world, augmenting the book’s international scope.


Pelvic Spleen

A healthy, 23-year-old, nulliparous woman presented with lower abdominal pain, which she reported having had intermittently for the previous year. She had no other symptoms of gastrointestinal distress. A peripheral-blood smear showed no Howell–Jolly bodies.

Physical examination revealed a palpable mass in the suprapubic region. Abdominal ultrasonography revealed displacement of the spleen from its normal position and a homogeneous soft-tissue mass (measuring 11.0 by 9.3 by 4.2 cm) in the pelvis. Imaging of the liver and spleen after injection of technetium-99m sulfur colloid (Panel A) revealed a normal liver and a well-defined area showing abnormal accumulation of radiotracer (arrow) in the lower abdomen.
Multislice computed tomography, with three-dimensional reconstruction of a coronal image (Panel B), revealed the position of the spleen in the pelvis (black arrow), with torsion of the elongated pedicle (white arrow).

Wandering spleen, or pelvic spleen, is an uncommon condition associated with laxity or malformation of the suspensory ligaments of the spleen. Splenic torsion and infarction are potential complications. The principal therapeutic options are splenopexy and splenectomy. After discussion of treatment options, the patient declined surgical intervention and has continued to do so in follow-up over the past 3 years.

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Pupil expansion ring with a single Iris retractor

This case of a very small pupil, previous uveitis, total posterior synechia, with +6 black nuclear cataract with very shallow anterior chamber. Subincisional single Iris retractor/hook with Pupil expansion ring and VisionBlue capsule staining made the case a safer. Haelon5 was used tp break the synechia and dilate the pupil to implant the Mortcher pupil expansion ring. A Subincisional single Iris retractor/hook was put to avoid the iris prolapse due to the very shallow chamber. A Tecnis Acrylic AMO IOL was implanted.