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PubMedDate not supplied

Pediatric lower extremity surgery using a hand table.

Operating on the pediatric lower extremity has its own inherent challenges due to the diversity of the problems, the smaller size of the patient, and the often-distorted anatomy associated with congenital malformations. Additional concerns arise with respect to positioning on the operating table to meet the surgeon's comfort, the anesthesiologist's need for proximity, and facility of radiographic imaging. The authors use a standard hand table to ameliorate these additional concerns without allocation of additional hospital resources.

Child↗
PubMed1977

Preoperative diagnosis of pancreatic carcinoma by percutaneous aspiration biopsy.

Carcinoma of the pancreas and chronic pancreatitis may be extremely difficult to differentiate by standard diagnostic methods preoperatively as well as at the operating table. Operative pancreatic biopsy may have a high morbidity, rare mortality, and can be misleading. Percutaneous aspiration biopsy may be of great potential benefit. It provides additional histological material not usually available, and an accurate diagnosis of malignancy can be made. In select patients a needless laparotomy may be avoided. It appears to be a safe procedure that should be considered in the evaluation of the patient with suspected pancreatic malignancy in which a mass lesion is demonstrated by ultrasonography, computerized tomography, angiography, or retrograde pancreatography.

Adult↗
PubMed1985

Pancreas divisum. Detection and management.

Pancreas divisum is a variant of pancreatic ductal drainage. Its existence is being observed more frequently with the widespread use of endoscopic retrograde cholangiopancreatography (ERCP). On occasion, a relative stenosis of the accessory sphincter will cause a symptom complex which includes nausea, vomiting, upper abdominal pain, and intermittent pancreatitis. In 20 patients seen over the past 4 years, symptoms have been severe enough to consider the patient for transduodenal sphincteroplasty. The use of morphine prostigmine stimulation as a screening tool, has been helpful in 79 per cent of the patients in the series. Intravenous secretin has been a valuable adjunct to both ERCP identification and cannulation of the duct, as well as in two patients in whom the diagnosis was only suspected, and confirmed at the operating table. Operative common duct manometry has shown 40 per cent of the patients to have abnormal flow dynamics, suggesting possible disturbance in the biliary sphincter, as well as the accessory pancreatic sphincter. Pathologic examination has demonstrated abnormal gallbladders in nine of nine patients without previous cholecystectomy. The suggested procedure of dual sphincteroplasty has resulted in no mortalities, but a 50 per cent complication rate. Follow-up shows 70 per cent of the patients to be currently asymptomatic, two patients have had recurrent pancreatitis, and four patients have other problems causing continued post-operative pain. This study suggests dual sphincteroplasty is an acceptable form of therapy for patients with pancreatic divisum and no other source for their pain. Further follow-up will be necessary to insure that therapy is truly curative.

Adult↗
PubMed1996

Analysis of 127 war inflicted missile brain injuries sustained in north-eastern Croatia.

During the 4-year period (1991-1994) there were 127 consecutive patients with missile brain wound treated at the Division of Neurosurgery. They sustained brain injury in the region of east Slavonia, Baranya and north Bosnia, and were admitted mostly during the homeland defensive war in Croatia (1991-1992). Analysing the wounded, we divided them in two groups: "succumbed" (59 wounded) and "survivors" (68 wounded). We applied "less radical type of surgery", i.e. the patients were never re-operated only because of the retained single bone fragment. However, a retained cluster of bone fragments should be reoperated. The higher percentage of retained bone fragments (76.8%) is the result of precise visualization on the postoperative computed tomography (CT) scan. The last few cases have convinced us that the problem of the retained fragments could be solved by using an intraoprative ultrasonography. An intracranial (i.c.) infection (meningitis, abscess) occurred in 10 patients (10%), mostly among the patients who, besides the retained fragments, had cerebrospinal fluid (CSF) leak on the dehiscenced scalp wound. These cases should be reoperated soon after the CSF leak is visible on the dehiscenced wound. The overall mortality rate of 46.4% can be explained since our hospital was located close to the front-line, and some of severely wounded reached our hospital just in time to die. Excluding moribunds and those who died on the operating table (operated immediately after the admission), the mortality was 31.7%.

Brain Injuries↗
PubMed1985

[Modified patient positioning in long-term hand surgery intervention by regional anesthesia].

The authors report a modified positioning of patients for long-term handsurgical operations under regional anaesthesia. After equalizing the level of hand- and operating table, the operating table is tilted 10-15 degrees towards the hand-table. The upper limb is abducted only 30-40 degrees and then rotated outwards. This guarantees a comfortable positioning of the patients for a longer period of time.

Anesthesia, Conduction↗
PubMed2002

Massive perineal wound slough after treatment of complex pelvic and acetabular fractures using a traction table.

An operating table with the capacity for skeletal traction against a pudendal post is a helpful and commonly used piece of equipment for certain pelvic and acetabular fracture patterns. Perineal soft tissue trauma and urogenital injuries are associated with some pelvic and acetabular fractures. The perineal region is vulnerable to compromise after such injuries. There is little documentation available in the literature that addresses intraoperative complications of the perineum after the use of a traction table for pelvic fractures. We present here a case in which prolonged traction against a pudendal post during operative fixation of complex pelvic and acetabular fractures resulted in massive perineal wound slough. This case should heighten surgeons' awareness of the vulnerability of the perineum to injury with the use of a traction table and should prompt measures to prevent complications.

Acetabulum↗
PubMed1984

New versatile operating room table and mobile C-arm fluoroscopic system.

The rapid development of endourologic procedures and ultrasonic renal stone surgery has left most hospital operating rooms without a suitable radiolucent operating table and a safe up-to-date C-arm fluoroscopic unit for these operations. A new radiolucent operating room table top combined with a new mobile C-arm fluoroscopy unit will allow versatility in the operating room for these percutaneous antegrade renal and ureteral operations. This table offers the additional benefits of being excellent for transurethral resection of the prostate, bladder tumors, litholapaxy, and cystoscopy as well as open bladder, prostate, trauma, and renal surgery. It also offers adequate space under it so that the microsurgeon can get his knees under the table while seated to do vasovasostomy and vasoepididymostomy with comfort. The urologist can thus perform all types of surgery on one table top and also relieve the cystoscopy room of a crowded schedule by doing some endoscopic surgery in the regular operating room.

Fluoroscopy↗
PubMed2006

A 4-cm thermoactive viscoelastic foam pad on the operating room table to prevent pressure ulcer during cardiac surgery.

AIMS AND OBJECTIVES: In this experimental study, a 4-cm thermoactive viscoelastic foam overlay and a heating source on the operating room table was compared with the standard operating room table with a heating source for the effect on the postoperative pressure ulcer incidence in cardiac surgery patients. BACKGROUND: Pressure ulcer incidence in the cardiac surgery population is reported to be up to 29.5%. The prolonged compressive forces from lying on the operating room table are one source of pressure ulcer development in this population. Pressure-reducing devices on the operating room (OR)-table should reduce the patients' interface pressure and thus the hazard of skin breakdown. METHODS: A randomized controlled trial was performed to test the effect of a 4-cm thermoactive viscoelastic foam overlay with a water-filled warming mattress on the OR-table (test OR-table) compared with the standard OR-table (a water-filled warming mattress, no pressure-reducing device) on the postoperative pressure ulcer incidence in cardiac surgery patients. INSTRUMENTS: The pressure ulcer classification system of the European Pressure Ulcer Advisory Panel (EPUAP) was used for pressure ulcer grading. RESULTS: The results show that patients lying on the 4-cm thermoactive viscoelastic foam overlay suffer slightly more pressure ulcer (17.6%) than patients on the standard OR-table without the foam overlay (11.1%). Because of the clinical relevance of the results, the randomized controlled trial was terminated after 175 patients at the interim analysis although the power calculation stated 350 patients. CONCLUSIONS: The combination of a 4-cm viscoelastic foam overlay and a warming source cannot be recommended for pressure ulcer prevention on the operating room table. RELEVANCE TO CLINICAL PRACTICE: Foam overlays are used to prevent pressure ulcers in patients. It is necessary to use such devices according to patient safety and use of resources.

Adult↗
PubMed1998

[Intraoperative CT imaging system using a mobile CT scanner gantry mounted on floor-embedded rails for neurosurgery].

Many neurosurgeons prefer to use intraoperative computed tomographic (CT) scanning, when possible, to check whether there is residual lesion or unexpected bleeding. We report a practical intraoperative CT imaging system using a high-speed CT scanner installed in the operating room along with a digitally controlled neurosurgical operating table. We designed a rail-track system to mobilize the CT gantry. The gantry is fixed onto a motorized carrier that can be moved smoothly on a rail-track embedded in the floor and with a maximum reach of 2.85 m from the room's wall to the operating table. The longitudinal motion of the operating table is easily adjusted by a foot switch from manual control to automatic control directly from the CT scanner's computer like an ordinary CT scanner bed in increments of 2, 5 or 10 mm during CT scanning. Either a carbon-made radiolucent head frame or carbon-made head plate is used as a headrest. Using this CT scanner system, pre- and intraoperative CT scannings were performed on 46 patients with brain tumors, cervical lesions or other intracranial lesions. We could operate on the patient with enough working space between the mobile CT gantry and the operating table for microneurosurgery. We could obtain intraoperative CT imaging of a patient on the operating table while the surgical wound remained open, the surgical drapes kept in place, and the surgical position unchanged, saving time in intraoperative CT scanning and preparation for further surgery when needed. This intraoperative CT imaging system installed in the operating room should be useful for neurosurgery.

Brain↗
PubMed2002

A novel telemedicine method for viewing the open surgical field.

BACKGROUND AND PURPOSE: The surgical theater has undergone a series of transformations from an open stadium-like environment to the closed environment of minimally invasive endoscopic surgery. Paradoxically, evolution from open surgery performed under direct vision to closed surgery performed through use of video images has been accompanied by improved viewing of the operative field by student observers. The objective of these experiments was to determine if a laparoscope mounted on the operating table during open surgery would provide students a better view of the operative field than that provided while standing behind the operating surgeon or via an optimally positioned hand-held video camera. MATERIALS AND METHODS: An endoscopic video camera and telescope were attached to an operating table by an Alpha Virtual Port, which facilitates use of the laparoscope in open surgery by fixing it to the operating table in the position of interest. Additional imaging systems were set up so as to simulate viewing of the surgical field by direct vision or a hand-held video camera. Common objects were placed on the operating table in mock surgical fields of various depth-to-aperture ratios. Images of these surgical fields were obtained by each of these systems and placed in a Web-based tool. Eleven people with a wide range of medical training evaluated the images and determined that the Alpha Port-mounted surgical telescope provided optimal visibility of the mock open surgical field. RESULTS AND CONCLUSION: The benefit of use of the mounted telescope was more pronounced as the depth-to-aperture ratio of the surgical field increased. Use of the Alpha Port-mounted laparoscope in open surgical procedures improves student viewing of the open surgical field.

Laparoscopes↗
PubMed1994

Passive reduction of spondylolisthesis on the operating room table: a prospective study.

Translational motion of low-grade spondylolisthesis is traditionally assessed with lateral flexion and extension radiographs. Maximum motion in an unanesthetized patient may be limited by patient cooperation, pain, or muscle spasm. Twenty-four patients with degenerative or isthmic spondylolisthesis were assessed with preoperative lateral flexion and extension radiographs. A lateral radiograph was obtained on the operating room table after administering an anesthetic, exposing the spine, and performing a laminectomy. The percentage slip decreased from 24 to 15 to 6% on flexion, extension, and intraoperative lateral radiographs, respectively (p < 0.001). The amount of reduction did not correlate with disc height, slip angle, slip level, or type of spondylolisthesis. Many low-grade spondylolisthesis deformities reduce almost completely on the operating table. Translational motion of spondylolisthesis is greater than preoperative flexion and extension radiographs indicate.

Aged↗
PubMed2000

Navigation system for interstitial brachytherapy.

PURPOSE: To develop a computed tomography (CT) based electromagnetic navigation system for interstitial brachytherapy. This is especially designed for situations when needles have to be positioned adjacent to or within critical anatomical structures. In such instances interactive 3D visualisation of the needle positions is essential. METHODS AND MATERIALS: The material consisted of a Polhemus electromagnetic 3D digitizer, a Pentium 200 MHz laptop and a voice recognition for continuous speech. In addition, we developed an external reference system constructed of Perspex which could be positioned above the tumour region and attached to the patient using a non-invasive fixation method. A specially designed needle holder and patient bed were also developed. Measurements were made on a series of phantoms in order to study the efficacy and accuracy of the navigation system. RESULTS: The mean navigation accuracy of positioning the 20.0 cm length metallic needles within the phantoms was in the range 2.0-4.1 mm with a maximum of 5.4 mm. This is an improvement on the accuracy of a CT-guided technique which was in the range 6.1-11.3 mm with a maximum of 19.4 mm. The mean reconstruction accuracy of the implant geometry was 3.2 mm within a non-ferromagnetic environment. We found that although the needles were metallic this did not have a significant influence. We also found for our experimental setups that the CT table and operation table non-ferromagnetic parts had no significant influence on the navigation accuracy. CONCLUSIONS: This navigation system will be a very useful clinical tool for interstitial brachytherapy applications, particularly when critical structures have to be avoided. It also should provide a significant improvement on our existing technique.

Brachytherapy↗
PubMed2001

A qualitative study of the perceptions of Hong Kong Chinese women during caesarean section under regional anaesthesia.

AIM: to explore Hong Kong Chinese women's experiences and perceptions of elective caesarean section performed under regional anaesthesia. DESIGN: an exploratory study using a qualitative approach. Data were collected by tape-recorded in-depth interviews two to five days after caesarean section. PARTICIPANTS: a purposive sample of 18 Hong Kong Chinese women having an uncomplicated, elective caesarean section under successful regional anaesthesia. SETTING: a post-caesarean ward of a University affiliated District General Hospital in Hong Kong. KEY FINDINGS: the three categories relating to the overall theme of Consciousness during Surgery were: Interacting with others, Experience of birthing, and Awareness of the environment. IMPLICATIONS FOR PRACTICE: the experiences of women, related to the general theme and categories cited above, affected their feelings of security and fulfillment. On the whole, women were satisfied with the regional anaesthesia, preferring to remain conscious throughout the surgery. They appreciated being able to interact with others and listening to music, but needed information regarding what was happening. Many were distressed by the sight and noise of surgical instruments, the narrowness of the operating table, the operating theatre lamps and the coldness of the theatre. Recommendations for practice are made relating to these issues.

Anesthesia, Conduction↗
PubMed2005

[Operative table-induced pressure ulcers].

The Authors conducted a study on 780 patients who underwent surgery. Fourteen patients developed operative table-induced pressure ulcers of different gravity. This paper is a description of these 14 cases. From the literature and from experience we know that the major exogenous risk factor for intraoperative pressure ulcers is the operation time. Therefore, special attention should be paid to preoperative, intraoperative and postoperative prevention. The knowledge of the pathology, specialized personnel and the use of appropriate facilities can reduce the risks of complication that are important sanitary and economic issue.

Adult↗
PubMed1998

Enhancement of upper abdominal operative field access and exposure using an operating room table accessory to achieve 62 degree head up feet down tilt (extreme reverse trendelenburg position).

The usual available operating room table for general surgery procedures has a limitation of approximately 30 degrees ofhead up feet down tilt positioning. A recently developed accessory attachment for the Midmark 71OO General Surgery Table with the Extreme Reverse Trendelenburg Attachment (ERTA) has expanded the range ofhead up feet down tilt positioning to 62 degrees.

Journal Article↗