Midline laparotomy is an emergency surgical operation frequently performed in cases of intra-abdominal pathology. Closure of the incision is usually done by continuous suturing by mass closure. In an emergency operation the intra-abdominal milieu is usually contaminated leading to gut oedema and, hence, an increase in postoperative intra-abdominal pressure. It is complicated by wound dehiscence, burst abdomen, etc. The cause of this complication is an increase in horizontal tensile forces on the site of the insertion of sutures which cuts the sheath. In this technique of reinforced tension line suture peak tensile forces are distributed from the suture base to the surrounding tissue through a horizontal suture, thereby preventing the suture from cutting through the tissue. From July 2007 to June 2009 patients requiring laparotomy were randomly divided into test and control groups by a 'closed envelope' technique. Their postoperative intra-abdominal pressure was recorded by urinary bladder catheter manometry. The result of this technique was compared with the incidence of burst abdomen in cases where it was closed by continuous suture. A total of 190 patients underwent laparotomy. In 90 the abdomen was closed by reinforced tension line (RTL) and in 100 patients by continuous suturing. None of the RTL group had a burst abdomen. Thirteen who had closure by continuous suture had a burst abdomen. The analysis of the results was done using the chi-square test. On comparing the incidence of burst abdomen in cases operated by continuous suture technique and by RTL, the P value was found to be 0.0026 which is highly significant. On analysis of the incidence of burst abdomen in cases having a grade II intra-abdominal pressure the P value was found to be 0.0009 which is highly significant. Closure of midline incision by RTL reduces the incidence of burst abdomen. Registration No. PROVCTRI/2008/091/000269 (http://www.ctri.in).
Perception of operator influences ultrasound image acquisition and processing. Lower costs are attracting new users to medical ultrasound. Anticipating an increase in this trend, we conducted a study to quantify the variability in ultrasonic measurements made by novice users and identify methods to reduce it. We designed a protocol with four presets and trained four new users to scan and manually measure the head circumference of a fetal phantom with an ultrasound scanner. In the first phase, the users followed this protocol in seven distinct sessions. They then received feedback on the quality of the scans from an expert. In the second phase, two of the users repeated the entire protocol aided by visual cues provided to them during scanning. We performed off-line measurements on all the images using a fully automated algorithm capable of measuring the head circumference from fetal phantom images. The ground truth (198.11.6 mm) was based on sixteen scans and measurements made by an expert. Our analysis shows that: (1) the inter-observer variability of manual measurements was 5.5 mm, whereas the inter-observer variability of automated measurements was only 0.6 mm in the first phase (2) consistency of image appearance improved and mean manual measurements was 4-5 mm closer to the ground truth in the second phase (3) automated measurements were more precise, accurate and less sensitive to different presets compared to manual measurements in both phases. Our results show that visual aids and automation can bring more reproducibility to ultrasonic measurements made by new users. For the keywords, select up to 8 key terms for a search on your manuscript's subject.
A 27-year-old female presented with complaints of pain in the left hypochondrium for the past six months. Pain was dull aching, continuous, without aggravating or relieving factors. No diurnal variations or associated fever reported. The patient belonged to a non-farming family, however, having a pet dog at home. Abdominal examination revealed mild splenomegaly. Laboratory tests, CBC, LFT & biochemistry were all within normal limits. Plain X-ray abdomen was unremarkable [Table/ Fig-1].An abdominal ultrasonography was carried out which showed two cystic lesions with multiple septations at the superior pole of the spleen. Contrast enhanced CT scan abdomen confirmed the USG findings [Table/ Fig-2], demonstrating splenomegaly with non enhancing cystic lesions having internal septations and suspicious daughter cysts within it, strongly suggestive of hydatid cysts.
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