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At least 343 records · Page 19Linked to original sources

PubMed2005

Retropharyngeal space and lymph nodes: an anatomical guide for surgical dissection.

Identification of the alar fascia is the key part of surgical dissection of the retropharyngeal lymph nodes (RPLNs). In cases where mandibulotomy is not performed for the removal of the primary tumor and/or the posterior pharyngeal wall is not incised, the medial or lateral approaches described in this paper can be performed. Surgical dissection of the RPLNs may improve prognosis and locoregional control in oropharyngeal, hypopharyngeal and cervical esophageal carcinomas. There have been no previous anatomical studies concerning landmarks and approaches for the surgical dissection of the RPLNs. This study was designed to illustrate the fascial anatomy of the retropharyngeal region (RPR), provide anatomical guidelines for RPLN dissection and describe and compare approaches for surgical removal of the RPLNs. Twelve fixed cadavers were used. Slices were obtained from the necks of the first three cadavers and the RPRs of the slices were dissected under an operating microscope. The other nine cadavers were dissected in a surgical position to expose the RPLNs and the fasciae of the RPR. In the coronal plane, the alar fascia divides the space between the buccopharyngeal and prevertebral fasciae into two compartments and constitutes the posterior border of the retropharyngeal space, which contains the RPLNs. The alar fascia, an important landmark for reaching the RPLNs, can be identified by the cervical sympathetic trunk, superior sympathetic ganglion and superior laryngeal nerve. Two approaches can be performed to remove the RPLNs, namely medial or lateral to the internal and external carotid arteries, internal jugular vein and vagus nerve.

Cadaver↗

PubMedDate not supplied

Cervical cytology screening after tubal ligation.

Tubal ligation has become one of the most frequently performed surgical procedures, and estimates suggest that over 50 percent of all women will undergo surgical sterilization by age 45. Preventive health procedures such as Pap tests are often performed when women visit physicians for family planning and obstetric care. Since women do not visit physicians for these reasons following tubal ligation, it is important to know how their physician contact and Pap test coverage is affected by this surgery. We used data from the Manitoba Health Services Commission to construct health-services-use histories for the two years before and the two years after surgery for all women aged 25-44 who underwent tubal ligation in 1974 (n = 4,553) and for a comparison group of women who did not have the surgery (n = 5,161). Women visited physicians after surgery at the same rate as they had before surgery. However, the proportion of women receiving Pap tests fell in the years after surgery for the tubal ligation women but remained the same for the comparison group. The reasons for this decline in testing were a decline in the number of visits for gynecologic and obstetric reasons and a decline in testing because of high rates of "screening" prior to surgery. This study demonstrates both the importance of the one-time surgical event as an opportunity to offer Pap tests to women who might otherwise not visit physicians and the possibility of overtesting among some women.

Adult↗

PubMed1975

Urinary stress incontinence: differential diagnosis, pathophysiology, and management.

It is appropriate to introduce this review of the subject of urinary stress incontinence with a discussion of other disorders that may produce abdnormal urinary leakage,at times even stimulating true anatomic stress incontinence. It is obviously important to correctly identify patients with these other conditions and not perform surgical procedures unlikely to relieve their symptoms. Thereafter, the underlying pathophysiology of stress incontinence is considered in detail, since its fundamental understanding serves as the basis for both accurate diagnosis and proper selection and effective execution of the operations designed to correct true anatomic stress incontinence. A final section on patient management covers choice of the optimal surgical procedure for each individual patient, end results that should be achievable by proper selection and performance of the various operations, and a descriotion of some of the technical details that seem particularly helpful in carrying out the three principal types of surgical procedres currently in use.

Adult↗

PubMed2006

Use of double-balloon enteroscopy to perform PEG in the excluded stomach after Roux-en-Y gastric bypass.

BACKGROUND: Because of postoperative complications, patients who have undergone Roux-en-Y gastric bypass (RYGB) for weight loss may require radiographic investigation of the pancreaticobiliary limb or enteral feeding. Gastrostomy-tube placement into the excluded stomach for these indications is typically performed surgically or via fluoroscopic or US guidance; PEG has not been reported as being performed for this purpose. Successful examination of the excluded stomach after RYGB has been reported when using double-balloon enteroscopy (DBE). OBJECTIVE: To perform PEG in the excluded stomach by using DBE. DESIGN: Retrospective review. SETTING: Single, North American tertiary-care center. PATIENTS: Individuals with postoperative complications after RYGB that requires radiographic examination of the excluded stomach and the pancreaticobiliary limb, or enteral feeding. INTERVENTIONS: Performance of PEG within the excluded stomach by using DBE. MAIN OUTCOME MEASUREMENTS: Ability to perform PEG-procedure-related complications and resultant management changes. RESULTS: PEG was successfully performed by using DBE in 3 of 4 patients with postoperative complications after RYGB. In 2 of the cases, the results of radiographic studies performed with contrast administration through the gastrostomy tube led to significant operative management changes. In the third case, preoperative enteral nutrition was provided by using a gastrostomy tube. PEG placement was not possible in the fourth case because of the lack of abdominal transillumination. Major complications were not observed. LIMITATIONS: Small sample size, single-center experience. CONCLUSIONS: PEG placement in the excluded stomach after RYGB by using DBE was safe, technically feasible, and led to management changes in patients in whom it was performed. This procedure should be added to the growing list of indications for DBE.

Abdominal Pain↗

PubMed1997

Long-term survival after surgical revascularization for atherosclerotic renal artery disease.

PURPOSE: We analyzed the long-term clinical outcome and survival after surgical revascularization for atherosclerotic renal artery stenosis. MATERIALS AND METHODS: The study group comprised 222 patients who underwent surgical revascularization for atherosclerotic renal artery stenosis between 1974 and 1987. The indications for performing surgical revascularization were treatment of hypertension in 60 patients, preservation of renal function in 12, and control of hypertension and preservation of renal function in 148. Postoperative blood pressure, renal function and survival data were analyzed during a mean followup of 7.4 years. RESULTS: There were 5 operative deaths (2.2%) and postoperative thrombosis or stenosis of the repaired renal artery occurred in 16 patients (7.3%). Long-term cure or improvement of renovascular hypertension was achieved in 72.4% of patients. Preoperative renal function correlated significantly with a favorable blood pressure response to surgical revascularization (p = 0.013). Long-term improvement or stabilization of renal function was achieved in 71.3% of patients. Preoperative renal function (p = 0.034) and bilateral atherosclerotic renal artery stenosis (p = 0.04) correlated significantly with a favorable renal function result after surgical revascularization. Actuarial 5 and 10-year survivals for the entire series from the time of surgical revascularization were 81 and 53%, respectively. The expected 5 and 10-year survivals for a comparable healthy population are 89 and 77%, respectively. Using a multivariate analysis, factors correlating with diminished long-term survival were age older than 60 years (p = 0.002), coronary artery disease (p = 0.031), and previous vascular operations (p = 0.001). CONCLUSIONS: These data support the long-term therapeutic efficacy of surgical revascularization in patients with atherosclerotic renal artery stenosis. The merits of newer forms of therapy, such as percutaneous transluminal angioplasty and endovascular stenting, must ultimately be weighed against these results.

Actuarial Analysis↗

PubMedDate not supplied

[Iatrogenic hemothorax and unknown spontaneous rupture of the oesophagus, double dramatic disease].

Iatrogenic haemothorax is a dramatic event and generally lethal if not treated appropriately and rapidly. Any thoracic co-morbidity increases the risk of death. Spontaneous rupture of the oesophagus is an equally lethal illness if not treated. We report a case of left haemothorax after a thoracic drain for spontaneous pneumothorax with ipsilateral effusion in a 77-year old male. The patient was operated on 6 hours after admission to hospital. We found a laceration of the left common carotid and an unsuspected rupture of the supradiaphragmatic oesophagus. Repair of the lesions in a single session led to no further complications. The patient was discharged in good condition. We know of only one case in the literature with Boerhaave's syndrome not treated surgically, whereas all the other cases had a negative outcome if surgery was not performed promptly. The non-specific symptoms in our case delayed the correct diagnosis of the spontaneous rupture of the oesophagus. The mortality rate is 31% in the literature even when there is an early diagnosis with well performed surgical reapair. A rapid decision as to the best surgical tactics and sending these patients to referral centres specialising in oesophageal disease are the keys to achieving good results.

Aged↗

PubMed1988

Surgical techniques for cesarean section.

Cesarean section is probably one of the oldest and certainly one of the most commonly performed surgical procedures in obstetrics and gynecology. There is always a risk in attempting to elaborate excessively on such a common operation. Each of us will develop our own personal biases based on individual experience and expertise. These differences are superficially distinct but usually have underlying similarities that allow us to achieve similar outcomes and expectations. At the same time, however, it is important to recognize that there is a difference between repetition and habit as opposed to altering a technique in order to meet a specific end. Obviously, with cesarean section, there can be several ways to accomplish the same result, and certain situations will dictate the individualization (patient, not physician) of technique. Certainly, one has to be aware of his or her own expertise and at the same time know his or her options. It seems best not to limit oneself to the same technique under all circumstances but to be able to anticipate problems and know how to rectify them in a manner that will avoid undue injury or compromise to the infant and mother.

Abdomen↗

PubMed1995

[Major liver injury. Role of preoperative transcutaneous endoluminal aortic clamping].

Severe contusion of the liver (type V in the Moore and Flint classification) still has a very poor prognosis. Exsanguination may lead to cardiac arrest when the abdomen is opened. Three patients with major liver injury were treated after percutaneous intra-aortic balloon occlusion and complete vascular exclusion of the liver. Two patients survived and one died due to complications resulting from lung trauma. The aorta was occluded with a balloon catheter inserted via the femoral route. The hepatic vascular exclusion was performed surgically after resuscitation had reestablished a satisfactory haemodynamic situation. Liver resection could then be performed under safe conditions. Aortic occlusion is a simple procedure with minimal disadvantages which could improve prognosis of major liver contusion by reducing the rate of intra-operative death.

Aorta↗

PubMedDate not supplied

Shoulder arthroscopy.

Shoulder arthroscopy is a well-established surgical procedure. Arthroscopy is used to confirm clinical diagnosis, establish details of shoulder pathology, perform surgical procedures relative to pathology, and plan for subsequent management. Anatomy and pathology of the shoulder, holmium laser applications, advantages and complications, and rehabilitation are discussed in this article.

Arthroscopes↗

PubMed2005

A patient who underwent surgical treatment of an adult-type aneurysm in the nonpatent arterial duct.

Adult-type aneurysms in the arterial duct are rare, and their spontaneous prognosis is poor. We performed surgical treatment of an aneurysm in the arterial duct in a 62-year-old male. The patient had had hoarseness since November 2003, and was referred to our hospital in March 2004. Thoracic CT and aortography demonstrated a sacciform aneurysm in the aorta in the distal arch region on the lesser curvature side. The patient was diagnosed as having an adult-type aneurysm in the nonpatent arterial duct, and underwent surgical treatment in April 2004. Thoracotomy in the fourth left intercostal space was performed up to the thoracic aorta, and a sacciform aneurysm, measuring 35 mm x 32 mm, was detected in the arterial duct. The recurrent laryngeal nerve adhering to the front surface of the aneurysm was overextended. Under partial extracorporeal circulation, the aneurysm was excised, and replaced by an artificial blood vessel. The postoperative course was satisfactory, and the patient was discharged from the hospital 14 days after surgery. The surgical outcome was good, and the hoarseness was improved. Taking possible complications into consideration, surgical treatment can be recommended in the early stage.

Aortic Aneurysm, Thoracic↗

PubMed2005

Automated three-dimensional volume rendering of helical computed tomographic angiography for aneurysms: an advanced application of neuronavigation technology.

OBJECTIVE: To introduce the possibility of volume-rendered helical computed tomographic (CT) angiographic data sets by use of Medtronic StealthStation Treon surgical navigation technology (Medtronic Surgical Navigation Technologies, Louisville, CO) and to evaluate the clinical usefulness of the method in planning and performing surgical treatment of intracranial aneurysms. METHODS: Between November 2002 and July 2003, we studied 15 patients with suspected intracranial aneurysms. All patients but two received conventional digital subtraction angiography, which failed to provide the requested information. Helical CT angiography was performed in all patients, and data sets were transferred to the StealthStation system across an electronic network to be automatically postprocessed by use of three-dimensional (3-D) volume rendering. The 3-D volume-rendered images were accurately analyzed to obtain more complete information about the aneurysm and to provide accurate treatment planning. In all patients, the 3-D volume-rendered model was displayed on the screen of the StealthStation system for the duration of the surgical procedure and compared with the intraoperative image. RESULTS: Data sets from CT angiography were automatically postprocessed by the StealthStation in seconds with excellent results, providing us, before and during surgery, with additional information not always available on traditional digital subtraction angiographic investigation. Because of the very short time necessary to complete this process (<5 min to obtain 3-D volume-rendered images), it was possible to perform emergency clipping of the aneurysms in two patients who had been admitted in very compromised neurological conditions. In 12 patients, integrated digital subtraction angiography and automated 3-D volume-rendered images allowed an accurate presurgical evaluation. Furthermore, in all patients on whom surgery was performed, aneurysms were found in the exact location and with the same anatomic features as depicted by the 3-D volume-rendered models. CONCLUSION: Reports in the literature indicate that information gathered by CT angiography with volume rendering shows a significant impact on aneurysm management. The StealthStation system upgraded with the adequate algorithm seems to provide a time- and cost-effective method of performing automated 3-D volume rendering of CT angiography and provides an interesting alternative to the available investigation modalities in case of emergency.

Aged↗

PubMed2005

The role of powered instrumentation in rhinoplasty and septoplasty.

Rhinoplasty and septoplasty are commonly performed surgical procedures that have as many variables in execution as the number of surgeons that perform them. Initially, these procedures were performed using manual instrumentation. Recently, however, powered instruments have been used to perform portions of the two procedures. Powered oscillating rasps have been described for reducing dorsal bony humps during rhinoplasty, and it has been suggested that powered osteotomes may reduce tissue trauma when performing nasal osteotomies. Powered burrs have also been used for taking down dorsal bony humps and refining boney irregularities. Although septal spurs have traditionally been excised manually, powered instrumentation has proved useful in this area as well. This article reviews the indications for using powered instrumentation in rhinoplasty and septoplasty.

Humans↗

PubMed2005

[Surgical treatment of lung cancer in octagenarian patient].

Because average life span of Japanese is getting longer, we sometimes meet elder lung cancer patients of over 80. They often have many complications, so we are worried about how to treat them. Recently we met 8 elder patients with lung cancer, and we performed surgical operation for them. Six patients performed partial lung resection or lobectomy had no complications after operation. But 2 patients with respiratory disorder who performed lobectomy and chest wall resection had some complications after operation. In such patients, careful postoperative management is needed, and continuous positive airway pressure (CPAP) ventilation with pressure support (PS) may be useful to prevent respiratory complications.

Age Factors↗

PubMed2003

Expanded use of suction and stabilization devices in cardiothoracic surgery.

BACKGROUND: Recent developments in beating heart instrumentation have allowed surgeons to perform multivessel off-pump coronary artery bypass surgery by overcoming the factors that impair surgical performance (limited visualization, continuous movement of the target area, and hemodynamic instability during exposure of the inferior and posterior parts of the heart). We have explored the possibility of further expanding apical and epicardial suction devices beyond their ordinary use in coronary artery surgery. METHODS: A retrospective review of our cardiac surgery database was undertaken to identify the incidences in which these devices have been used in a somewhat novel manner in the field of cardiac surgery. RESULTS: During this time period we identified 20 instances in which either apical or epicardial suction devices were used alone or together. The nature of the procedures included dividing pericardial adhesions (pericardiectomy, n = 2; dividing adhesions in redo-coronary surgery, n = 4), securing epicardial hemostasis (penetrating cardiac trauma, n = 2; securing hemostasis during reexploration after cardiac surgery, n = 10), and facilitating epicardial microwave ablation (n = 2). On all 20 occasions the intended procedures were undertaken uneventfully. Furthermore, the use of apical and epicardial devices greatly facilitated the operative procedures and avoided the use of cardiopulmonary bypass on all occasions. CONCLUSIONS: In summary, we would like to highlight the expanding role for apical and epicardial suction devices to an area beyond coronary artery surgery in which we have found their use invaluable.

Atrial Fibrillation↗

PubMed1999

Arterial patch angioplasty for reconstruction of proximal coronary artery stenosis.

BACKGROUND: Ostium patch angioplasty and reconstruction with an onlay patch consisting of pericardium or the saphenous vein is an alternative surgical technique for patients with proximal coronary artery stenosis. Previously described surgical techniques comprise anterior or posterior approaches. In this article we report our experience of using a segment of the proximal right internal mammary artery as an onlay patch for surgical angioplasty. METHODS: Between June 1997 and April 1999, 18 patients (9 men and 9 women) were subjected to surgical patch angioplasty of the left main coronary artery, 3 patients had an additional angioplasty performed on the proximal right coronary artery. The first 12 patients were operated with a posterior incision technique, and six subsequent patients by a new technique performed through an oblique incision into the left main stem after transsection of the ascending aorta. RESULTS: All patients had an uneventful postoperative course, and were fully rehabilitated without clinical symptoms of ischemic heart disease at mean follow-up of 10 months (range 1-23 months). Postoperative catheterization after six days showed excellent results with a widely open and funnel-shaped neoostium. CONCLUSIONS: The use of a proximal segment of the right internal mammary artery as an onlay patch for reconstructing proximal coronary artery lesions is safe with no complications. Although the posterior approach may be used to obtain excellent results, transsection of the ascending aorta gives an optimal visualization and mobilization of the left main coronary artery when performing surgical angioplasty.

Aged↗

PubMedDate not supplied

[Ultrasonic methods of diagnosis of late complications after reconstructive surgery of the aorta and major arteries of the lower limbs].

Long-standing results were studied in 587 patients who sustained reconstructive vascular surgeries when aged under 16 years (the average age was 6 years and 4 months). Out of them 141 patients faced the necessity of repeated surgeries: in 115 (81.6%) patients the extremity function was preserved, in 19 (13.5%) a repeated amputation was performed, 7 patients (4.9%) expired. All those operated on had been actively followed up with the use of periodical instrumental investigation which included dopplerography and ultrasonic angiography. High significance of ultrasonic technique was proved as the use of it permitted one to detect late complications on the early stages of their development and perform surgical corrections before the development of life-threatening complications. Therefore repeated preventive surgeries were performed in 53 patients, 52 of them were a success. Repeated amputations were performed in 1 patient. All those operated on survived.

Adolescent↗

PubMed1993

Idiopathic retroperitoneal fibrosis: a case of unilateral lesion.

Here we report a case of idiopathic retroperitoneal fibrosis, a unilateral case, which resulted in remission by ureterolysis with intraperitonealization. A 24-year-old female was hospitalized because of hydronephrosis. Many examinations were performed with the suspicion of malignant disease, but no apparent cause was detected. We suspected idiopathic retroperitoneal fibrosis and performed surgical exploration. The pathological diagnosis was retroperitoneal fibrosis. Ureterolysis with intraperitonealization of the ureter was performed. Six months later, marked improvement of the right hydronephrosis was observed without steroid therapy.

Adult↗

PubMed2003

Evaluation of student experience and performance in a surgical clerkship.

Phase I of this study compared students' experiences regarding patient demographics, surgical content, and clinical skill practice in three different hospital settings: university, community, and public. Phase II examines the aspects of clerkship performance that contribute to students' final grades. An instrument to track the experiences of students on their surgical clerkship was developed and piloted. Data were analyzed to compare the frequency of common surgical tasks performed and exposure to various surgical topics and patient demographics as well as to identify factors that explain variance on student grades. Students performed an average of 33 clinical tasks per week and were exposed to a broad range of surgical topics. Analysis of variance results demonstrated no significant differences between public, private, or university settings with respect to students' clinical practice opportunities or content exposure. Clinical evaluations and National Board of Medical Examiners scores account for 75.5 per cent of the variance in students' final grades. There was no significant correlation between patient load and clinical task load with final clerkship grades. The common clinical and didactic components of a surgical clerkship can balance a student's experience with surgical topics and tasks performed. It is important to utilize this information in program review of multisite clerkships to ascertain and enhance the validity of student performance measures.

Analysis of Variance↗