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Biomedical subjects

J David Richardson

Publications and source records attributed to J David Richardson.

At least 19 recordsLinked to original sources
PubMed2006

Training of general surgical residents: what model is appropriate?

The training of general surgical residents has been a relatively stable process for the past several decades. However, a variety of forces have caused several recent changes in the education of general surgeons and more potentially radical alterations have been recommended by some surgical leaders. Much of the initiative for changing training is due to the inexorable forces of specialization and the increasingly vigorous competition for qualified trainees in various surgical disciplines. Decisions made within the next few years will likely decide the future of general surgery as a specialty.

General Surgery↗
PubMed2006

Role of thoracoscopy in acute management of chest injury.

PURPOSE OF REVIEW: To review the literature on the use of video-assisted thoracoscopic surgery for the diagnosis and treatment of intrathoracic injuries. RECENT FINDINGS: Video-assisted thoracoscopic surgery is a relatively recent innovation. It was originally promoted for the treatment of retained hemothorax and the diagnosis of diaphragm injury. It is highly effective for the management of those problems. Recent studies have focused on video-assisted thoracoscopic surgery for treatment of chest wall bleeding, diagnosis of transmediastinal injuries, pericardial window and persistent pneumothorax. In properly selected patients, video-assisted thoracoscopic surgery is extremely efficacious in managing these problems. SUMMARY: The role of video-assisted thoracoscopic surgery in the management of acute chest injury is expanding. It is an invaluable tool for the trauma surgeon.

Contraindications↗
PubMed2006

Morbidity and mortality in vascular surgery: the Kentucky experience with a statewide database.

Efforts at improvement in quality of care for surgical patients have required multiple strategies that include local, regional, and national efforts to influence processes and outcomes, and examination of outcome databases with and without risk stratification. In the mid to late 1980s, there was an effort to examine the outcome of two high-risk procedures (carotid endarterectomy and abdominal aortic aneurysm repair) on all Medicare patients in the state of Kentucky with an effort to determine the outcome of their treatment and improve the quality of care delivered to them. Even though this experience is somewhat dated, it still represents a unique examination of a large number of patients treated by numerous surgeons. Furthermore, all charts reviewed by the author presented an opportunity to compare actual patient data with that obtained from an administrative data set. This report also examines the author's attempts at improving outcome.

Clinical Competence↗
PubMed2005

Management of esophageal perforations: the value of aggressive surgical treatment.

BACKGROUND: The treatment of esophageal perforation remains controversial, particularly in terms of the type of operative therapy. This report analyzed results of an aggressive treatment protocol. METHODS: Patients with esophageal perforations in a normal esophagus or those with a motor disorder were treated by operative closure. All defects were buttressed or closed by either muscle or pleura. Sternocleidomastoid muscle was used to buttress or primarily close the defects in the neck, and a flap of diaphragm was often used for thoracic perforation. Patients with perforated cancer or severe underlying disease had an esophagectomy. RESULTS: Sixty-four patients had operation: 50 underwent preservation of the esophagus after closure of the perforation and 14 underwent resection. The leak rate was 17%, but all healed. One patient treated with primary closure died (1.5% mortality); only 1 patient required subsequent esophagectomy. Thirteen of 14 patients treated with esophagectomy had an excellent result. CONCLUSION: The aggressive approach to esophageal perforations with attempt at uniform closure or resection of severe disease produced excellent results with reduced morbidity and low mortality.

Digestive System Surgical Procedures↗
PubMed2005

Thoracoscopy for the acutely injured patient.

Advances in video-surgery digital technology, new instruments, and advanced surgical techniques have increased the importance of video-assisted thoracoscopic surgery (VATS) in the diagnosis and treatment of the acutely injured patient. Currently, VATS offers a new approach in the diagnosis and treatment of many thoracic conditions previously treated only by standard thoracotomy. Available data suggest that when caring for trauma patients, results of VATS are comparable with open surgery. Furthermore, the recovery process clearly is expedited with this minimally invasive modality. It has been our experience during the last decade that VATS is a safe, reliable, and effective alternative to conventional open thoracic surgery.

Acute Disease↗
PubMed2005

Brief communication of the Residency Review Committee-Surgery (RRC-S) on residents' surgical volume in general surgery.

BACKGROUND: The Residency Review Committee-Surgery (RRC--S), 1 of 10 surgical specialties of the Accreditation Council for Graduate Medical Education (ACGME) has monitored the surgical volume of all general surgical residents closely. As a consequence of the reduction of duty hours with the limitation of an 80-hour work-week (averaged over 4 weeks), we were interested in the impact of these restrictions on surgical (volume) experience since its first year of implementation (2003--2004). Therefore, we evaluated the surgical volume of general surgical services since the implementation of the ACGME duty-hour restrictions and compared this volume with that of previous years without these duty limits. METHODS: The Biostatistical Management Section of the ACGME implemented prospective analysis of categorized data for total surgical procedures and Chief Resident cases. The study interval included all resident surgical procedures completed from 1997 to 2004. We were interested particularly in evaluating trends and outcomes after the first year of successful full compliance of the 80-hour work week. Specific evaluations included the impact on surgical programs for total major procedures and Chief Resident cases requisite for application to the American Board of Surgery. RESULTS: The average number of total major procedures for both resident and program averages were noted to increase steadily through the academic years of evaluation (1997--2001). A sharp decrease was evident in the total major procedures for the academic year 2001--2002 that relates to a correction of the biostatistical database implemented by the ACGME to correct a system conversion that began in the academic year 2001--2002. Despite significant changes to the system data mappings, beginning in the academic year 2001, this reduction is explained by the total counted surgeries as major that were eliminated in a revised counting methodology. It was evident on evaluation of the average (of averages) for major surgical procedures per resident (per program) in academic years 1997 to 2004 that the number of procedures was not statistically different in the academic years evaluated when compared with the year for implementation of duty-hour standards (2003--2004). Data analysis further indicates that the average procedures (per resident) performed as Chief Resident in general surgery remained stable from 1997 to 2004; the use of tiered t tests comparing Chief Resident averages (per program) for the academic years 2002--2003 versus 2003--2004 indicated that data remained consistent and confirmed no statistical variance in volumes during this interval (P=0.43). Because some general surgery programs have exceptions for duty-hour requirements (n=15) to allow an 88-hour week averaged over 4 weeks, these differences were of interest to evaluate programs with and without these duty-hour exceptions. Preliminary data with these limited parameters of evaluation suggest no detrimental outcomes related to the duty-hour restrictions for total major procedures per resident or for surgical procedures as Chief Residents for programs with and without these approved exceptions. CONCLUSIONS: RRCs that evaluate general surgery and surgical specialties have responded aggressively and professionally to implement the duty-hour standards per the ACGME. This brief report should be considered an interim communication to evaluate the surgical experience impact for programs currently under the restriction of duty-hour limits. The data provided in the first year of evaluation since the implementation of the 80-hour work-week restriction policy suggest that there has been no significant change in the overall surgical experience for major procedures (per resident), nor has there been a negative impact on Chief Resident surgical experience. A continuum of the prospective evaluation process is required by the RRC-S and other surgical specialties to ensure that requisite surgical volume is maintained throughout the entire 5 years of clinical surgery.

Accreditation↗
PubMed2005

The stages of change questionnaire as a predictor of trauma patients most likely to decrease alcohol use.

BACKGROUND: Research has shown that negative trauma-related consequences of drinking can predict readiness to change drinking behavior. These findings are confined to patients with positive blood alcohol levels at admission. The current study extends such findings by examining whether stage of readiness to change among all adult trauma activations admitted to the emergency department for 24 hours or more can be used to predict a change in behavior at followup. STUDY DESIGN: Patients 18 years of age or older admitted to a Level II trauma center between December 1, 2001, and January 31, 2003, with a trauma activation were eligible to participate. Enrolled patients were screened for alcohol use and readiness to change with the Alcohol Use Disorders Identification Test (AUDIT) and Short Form Stages of Change (SFSC), respectively, within 2 days of discharge. Blood alcohol level (BAL) was obtained for all study patients. Six to 18 months after discharge, patients were followed up with the AUDIT. The ability of the SFSC to predict change in alcohol behavior at followup was analyzed by multiple regression. RESULTS: Of 253 eligible patients, 146 patients were enrolled and had BAL taken. Most were men (64%) and 36% were women. Mean positive BAL (n = 57) was 186 mg/dL (range 10 to 537 mg/dL). Of these, 23% (13 of 57) met AUDIT criteria for harmful drinking and 47% (27 of 57) met criteria for dependent drinking. Even among those with undetectable BAL (n = 89), harmful or dependent drinking was identified by the AUDIT for 11% (10 of 89). A readiness to change was common among those reporting harmful or dependent drinking (26%) at baseline. The SFSC independently and significantly predicted change in drinking behavior among the 72 patients with followup (p = 0.05). Patients indicating greater readiness to change at baseline were those more likely to decrease their consumption pattern at followup. CONCLUSIONS: Findings suggest that administering the brief SFSC questionnaire to all trauma patients and providing assistance to those demonstrating a willingness to change may prove to be an effective strategy for reducing problem alcohol use.

Adult↗
PubMed2005

Selective management of blunt hepatic injuries including nonoperative management is a safe and effective strategy.

BACKGROUND: The justification and preference for operative versus nonoperative management of hepatic injuries caused by blunt trauma remains ambiguous. This review assesses the outcome of operative and nonoperative management of liver injury after blunt trauma. METHODS: We retrospectively reviewed the demographics, severity of injury, severity of liver injury, associated concomitant injuries, management scheme, and outcome of patients with documented hepatic injury from 1993 to 2003. RESULTS: The overall mortality rate was 9.4%, with 3.7% caused by the liver injury itself. Fifty-nine percent (330 of 561) of liver injuries were of low severity (grades I and II), with an overall mortality rate of 6.6% caused by concomitant injuries and liver-related mortality of 0%. Forty-one percent (231 of 561) of liver injuries were high-severity injuries (grades III, IV, and V). Mortality for nonoperative management of high-severity liver injuries was 2.2%. If operative intervention was required because of hemodynamic instability or concomitant injuries then the mortality rate was significantly higher at 30%. Forty-two of the 378 (11%) liver injuries treated nonoperatively required an adjunctive procedure for successful management. CONCLUSIONS: Selective management of liver injuries presented a low liver-related mortality rate. Low-grade injuries can be managed nonoperatively with excellent results. High-grade injuries can be managed nonoperatively, if operative intervention is not required for hemodynamic instability or associated injuries, with a low mortality. In these patients, adjunctive procedures will be required selectively for successful nonoperative management of high-grade liver injuries. High-grade injuries requiring operative management because of hemodynamic instability or concomitant injuries continue to have significantly higher mortality.

Adult↗
PubMed2005

Physician extenders impact trauma systems.

BACKGROUND: The implementation of revised surgical resident work hours has led many teaching hospitals to integrate health care extenders into the trauma service. We undertook this review to assess the effectiveness of these individuals in meeting the goals of the work hour restrictions and whether they impact other hospital and patient outcomes. METHODS: During the year 2002, we integrated two nurse practitioners into the trauma service of a teaching hospital. We prospectively collected data a year before (2001), during (2002), and a year after (2003) the integration that included number of admissions, hospital length of stay, intensive care stay, floor length of stay, mortality, direct cost per case, and weekly resident work hours on 44 residents at all levels. RESULTS: After the incorporation of physician extenders, we observed statistically significant reductions in floor, intensive care unit, and overall hospital lengths of stay. Patient mortality and cost per patient remained unchanged. Furthermore, we were able to obtain compliance with the Accreditation Council for Graduate Medical Education requirements for residency work hour limitations, as the average number of hours worked per resident on the trauma service decreased from 86 hours to 79 hours per week. CONCLUSION: As graduate medical education becomes ever more regulated, physician extenders can be successfully integrated into busy academic Level I trauma centers. This integration positively impacts patient flow and resident work hours without altering patient outcomes or direct hospital cost.

Academic Medical Centers↗
PubMed2005

Trauma/critical care surgeon: a specialist gasping for air.

BACKGROUND: In the last 10 years, trauma/critical care has become less attractive because of the decreasing surgical caseload, the nocturnal work hours, and the economics of the practice. Nevertheless, during the same period, the number of verified trauma centers has significantly increased. This study assesses the economic drive behind this dichotomy. METHODS: Over a 1-year period, we collected financial data on 1,907 trauma patients for both Level I trauma centers and trauma/critical care surgeons. Financial data, including payor source, cost, reimbursement, margin, and reimbursement-to-charge and reimbursement-to-direct cost ratios, were calculated. RESULTS: For commercial- and government-insured patients, the reimbursement-to-direct cost ratio was 2-and 35-fold greater, respectively, for the trauma centers than for the trauma/critical care surgeons. For uninsured patients, the addition of local government funds allowed the trauma center to cover direct cost with no margin. In contrast, even with the addition of supplemental salary dollars from the institution, for every dollar in direct cost generated by the trauma/critical care surgeons in caring for uninsured patients, they recovered 55 cents, or a loss of 45 cents per direct cost dollar spent. CONCLUSION: The economic dichotomy that exists between trauma centers and trauma/critical surgeons is significant. It drives institutional growth and, at the same time, discourages surgeons from entering the subspecialty. As physician reimbursement decreases and the number of uninsured patients increases, this economic dichotomy will amplify. Over the next decade, without a significant adjustment, the subspecialty is in danger of extinction.

Career Choice↗
PubMed2005

Gastrointestinal stromal tumors: pathogenesis and current treatment.

Gastrointestinal stromal tumors are of mesenchymal origin, occurring at any point in the gastrointestinal tract. These tumors are becoming more commonplace either because of an increase in incidence or improved methods of diagnosis and screening. Clinical diagnosis has proved quite difficult because of an extensive array of potential patient presentations. Treatment should not be delayed and involves surgical resection of the tumor. In cases such as metastatic or inoperable tumors, imatinib mesylate, which acts specifically on the growth factor receptor of this tumor, has been used with documented improvement. Imatinib mesylate has been shown to decrease the density of tumor cells without causing inflammation or necrosis. Current studies are evaluating the usefulness of adjuvant therapy after primary surgical resection.

Adult↗
PubMed2005

Cirrhosis and trauma: a deadly duo.

It has been previously reported that trauma patients with cirrhosis undergoing emergency abdominal operations exhibit a fourfold increase in mortality independent of their Child's classification. We undertook this review to assess the impact of cirrhosis on trauma patients. We reviewed the records of patients from 1993 to 2003 with documented hepatic cirrhosis and compared them to a 2:1 control population without hepatic cirrhosis and matched for age, sex, Injury Severity Score (ISS), and Glasgow Coma Score (GCS). Demographic, severity of injury, and outcome data were recorded. Student's t test and X2 were used for statistical analysis and a P < 0.05 was significant. Sixty-one patients had documented cirrhosis and were compared to 156 matched controls. Comparing the two groups demonstrates there was no difference in age, ISS, or GCS. Intensive care stay, hospital length of stay, blood requirements in the first 24 hours postinjury, and mortality (33% vs 1%) was significantly greater in the trauma patients with cirrhosis. Fifty-five per cent of deaths in the cirrhosis group was due to sepsis, and, as the Child's class increases, so does the mortality (Child's A, 15%; B, 37%; and C, 63%). In 64 per cent of cirrhotics without an emergent abdominal operation, mortality was 21 per cent. In the 36 per cent of cirrhotics who had emergent abdominal operation, mortality was 55 per cent. Hepatic cirrhosis in trauma patients, regardless of severity of injury or the need for an abdominal intervention, is a poor prognostic indicator. The necessity of an abdominal operative intervention further amplifies this effect. Trauma and cirrhosis is, in fact, a deadly duo.

Abdominal Injuries↗