Zygomatico-orbital fractures: historical perspective and current surgical management.

This article presents a general historical review of zygomatico-orbital (ZO) fractures with application of contemporary surgical procedures. Two surgical cases are presented, in which the ZO fractures were approached via a transconjunctival incision with a lateral canthotomy. A two-point rigid internal fixation, combined with a porous high-density polyethylene orbital floor reconstruction, produced uniformly excellent cosmetic and functional results in a total of 42 patients with ZO fractures who were treated over a 2-year period.

Monobloc correction of external nasal deviations.

Nine patients (7 men, 2 women) with external nasal deviation underwent corrective procedures using a monobloc nasal osteotomy technique. The deformities ranged from mild to severe. Eight patients had post-traumatic deviations, whereas 1 had a unilateral cleft nasal deformity. For this monobloc technique, osteotomies were performed at unequal levels to correct the height difference, no periosteal undermining was performed, and septal dissection was undertaken only after monobloc repositioning. There was no need for grafts or microplate fixation. Minimum follow-up was 8 months. All patients had improvement in their external deviation, 1 patient was mildly undercorrected, and only 1 patient (cleft nasal) required a radical submucosal resection.

Effect of verapamil on the gastric mucosal level of PGE2 during stress.

Prostaglandin E2 is one of the factors in the maintenance of gastric mucosal integrity and verapamil, a calcium channel blocker, has been shown to reduce gastric mucosal ulcerations during stress. To investigate whether this protective effect of verapamil is mediated via PGE2, four groups of 20 Holtzman rats were given either 1 ml of normal saline (NS) intraperitoneally (ip): 1 mg/kg of indomethacin (I) ip; 2 mg/kg of verapamil (V) ip or I followed by V. Then 10 animals from each group were submitted to stress by the cold-restraint method. After sacrifice, gastric mucosal ulcerations were counted and specimens of nonulcerated mucosa were assayed for PGE2 by HPLC. Stress-induced mucosal ulcerations were associated with a significant decrease in the gastric mucosal levels of PGE2 (from 64.2 to 32.7 pg; P less than 0.05). This effect was magnified by the administration of indomethacin (down to 21.0 pg). Verapamil significantly increased PGE2 levels both in the stressed (48.0 pg) and unstressed (99.9 pg) animals and significantly reduced ulcerogenesis when compared to either NS- or I-treated groups. This effect of verapamil was completely blocked by the administration of indomethacin. In conclusion, verapamil stimulates PGE2 synthesis and its protective effect against stress-induced mucosal damage seems to be mediated by PGE2.

Arterial reconstruction in patients with polycythemia vera.

The natural history of polycythemia vera (PV) with its inherent arterial and venous complications are well described but the results of arterial surgical treatment in patients with PV are not known. This study was done to determine the outcome of arterial surgical treatment in patients with PV. During the last six and one-half years, of 2,603 extensive vascular procedures performed, seven reconstructions were performed upon six patients with PV. Extensive complications occurred in 57 per cent of this group. All of the complications occurred in patients with disease of the lower extremity and resulted in extensive amputation in one-half of the patients. The average preoperative platelet count was higher (420,000) in patients with complications as compared with those who did well (303,000). All of the patients requiring chemotherapeutic control of the PV (hydroxyurea) had extensive complications. These results indicate that vascular operations in patients with PV carry a high complication rate. A platelet count of more than 330,000, more than 70 years of age, infrainguinal reconstruction and PV requiring hydroxyurea for control seem predictive of a poor outcome. Although this series is small, we believe that great caution should be exercised before attempting vascular reconstructions in patients with PV and the aforementioned risk factors.

Hospital costs, cancer patients, and surgical diagnostic related groups.

This study of 4,359 Medicare patients in 107 noncancer stratified surgical Diagnostic Related Groups (DRGs) tested the hypothesis that patients with a diagnosis of a malignancy (i.e., cancer) in these DRGs would have higher resource utilization than patients without a diagnosis of a malignancy (i.e., noncancer) in these same surgical DRGs. The 1,008 cancer patients had 3.2 times the financial loss ($1,617 per patient vs. $510 per patient) compared to the 3,351 noncancer patients (P less than .05). Patients with cancer had a greater percentage of outliers, more diagnosis (P less than .0001) and procedures (P less than .0001) per patient, and a higher mortality (P less than .01) than patients without cancer. These findings raise the question of the equity of DRG payment for patients with cancer in many surgical DRGs. Financial disincentives to treat certain groups of Medicare cancer patients at our hospital may affect both their access and quality of care in the future.

Financial risk and hospital cost for elderly patients in non-age stratified urology DRGs.

The Diagnostic Related Group (DRG) hospital payment system may be inequitable for certain groups of Medicare patients. This study of 216 Medicare urology patients in the ten non-age stratified urology DRGs demonstrated that patients seventy years of age and older (70+) had higher resource consumption than patients under seventy years of age (70-). Findings were: (1) older patients (70+) had higher total hospital costs (+12,022 per patient) than younger patients (70-) (+9,872 per patient); (2) a longer hospital length of stay (14.2 days vs 11.6 days); (3) financial risk of +1,756 loss per (70+) patient vs +1,309 profit per (70-) patient (p less than 0.05); (4) more diagnoses and procedures per patient, and (5) a higher mortality (4.0% vs 3.3%). These findings suggest that the current DRG scheme may be inequitable vis-a-vis the older urology patient in non-age stratified DRGs, and thus could limit access and quality of care for these patients in the future.

Hospital costs, cancer patients, and gynecology diagnostic related groups.

This study of 115 Medicare gynecology patients in five noncancer-designated gynecology diagnostic related groups (DRGs) demonstrated that patients with a diagnosis of a malignancy (N = 52) had significantly higher hospital resource utilization compared to patients without a malignancy (N = 63) in these gynecology DRGs. Cancer patients had higher total hospital costs (P less than 0.001), longer hospital length of stay (P less than 0.01), significant financial losses under DRGs (P less than 0.01), greater percentage of outliers (P less than 0.05), greater severity of illness, and greater mortality (P less than 0.001) compared to noncancer patients in these same gynecology DRGs. These findings raise the question of whether hospitals will be adequately reimbursed by DRGs for many gynecology cancer patients. Disincentives for hospitals to treat gynecology cancer patients under the current DRG reimbursement system may affect both the access to and the quality of care.

A staged approach to long gap esophageal atresia employing a spiral myotomy and delayed reconstruction of the esophagus: an experimental study.

In beagle dogs, the cervical esophagus was divided 5 cm cranial to the thoracic inlet employing a stapler. The distal esophageal stump was attached to the external surface of the trachea. A spiral myotomy (2 1/2 revolutions) was made in a 3-cm long segment constituting the distal end of the proximal esophageal segment. This was twisted on a bias with the muscle edges approximated by interrupted stitches to cover the denuded submucosal layer. With moderate traction, this segment could be elongated to a length of 5 cm. A subcutaneous tunnel was created in the anterior chest to accommodate the reconstructed proximal esophageal segment (under slight traction), with its distal end forming a cutaneous esophagostomy. A gastrostomy was created using a Gauderer button (Bard Interventional Products, Billerica, MA) for feeding. After 3 weeks, the proximal esophageal segment was mobilized and removed from the subcutaneous tunnel. The distal esophageal segment was freed from the trachea and 5 to 8 cm of its proximal end was excised. The proximal (myotomized) esophagus was brought down to the stump of the remaining distal esophagus and an anastomosis formed in an end-to-end fashion. Oral feeding was reestablished within 1 week. Prolonged ingestion, observed soon after operation, gradually improved. During a period of 1 to 6 months after the operation, motility of the myotomized segment was tested by barium swallow and manometry. There was neither diverticulum formation nor stenosis. Transit of contrast material in the myotomized segment was smooth and rapid. Manometry demonstrated preservation of motility in the myotomized segment of the esophagus.(ABSTRACT TRUNCATED AT 250 WORDS)

Surgical procedures in patients during the tenth decade of life.

The purpose of this study was to determine the outcome of major surgical procedures in patients 90 years of age or older. The records of 46 patients in this age group who underwent surgical procedures were reviewed to determine the outcome and the postoperative quality of life. Overall, the perioperative mortality was 20%. Mortality was not influenced by such risk factors as diabetes mellitus, chronic obstructive pulmonary disease, renal failure, quantity of blood loss, duration of procedure, or total number of hospital days. However, patients with heart disease had a significantly higher mortality rate (78%). Overall, 39% of the patients experienced a subjective deterioration in their mental status after surgery. Of those patients who were ambulatory before surgery, 73% were ambulatory after surgery. Although this study indicates that the perioperative mortality is high and mental status changes frequent in this very elderly age group, the quality of life and longevity of the majority of these patients are good, and vigorous surgical intervention appears warranted.

Financial risk, hospital cost, complications and comorbidities (CCc) in non-CC stratified urology diagnostic related groups.

The federal Medicare Diagnosis Related Group payment mechanism is undergoing constant change. Significant interest has been generated at the health policy level regarding reimbursement for patients with complications and comorbidities. The purpose of this study was to analyze hospital resource consumption for patients in the seventeen urology non-complicating condition (CC) stratified Diagnostic Related Groups (DRGs), currently 45 percent of urology DRGs. We analyzed 185 Medicare patients in these non-CC stratified urology DRGs and found that patients with more CCs per patient had higher total hospital costs per patient, financial risk under DRGs, a greater percentage of outliers, and a higher mortality, than patients in these same DRGs with fewer CCs per patient. These findings suggest that the current DRG system is inequitable to some patients and certain hospitals vis-a-vis non-CC stratified urology DRGs. The Health Care Financing Administration has not significantly changed the complicating condition urology DRG classification, as of its recent May, 1988 legislation. Financial disincentives to treat these patients may affect both their access and quality of care in the future.

Financial risk and hospital cost for elderly patients in non-age stratified surgical DRGS.

Hospitals face increasing uncertainty under prospective payment systems such as Medicare's DRG system. We analyzed the equity of the DRG system for 2622 Medicare surgical patients in the 82 non-age stratified surgical DRGs. Patients age 70 and over had higher total hospital costs (P less than .05), a longer hospital length of stay, more diagnoses per patient, losses under DRG payment (P less than .01), a greater percentage of outliers (P less than .05) and higher mortality than patients in these same DRGs under 70 years of age. This data suggests that the current DRG classification scheme may be inequitable vis-a-vis older Medicare patients in the non-age stratified surgical DRGs, and could provide financial disincentives that limit both their access and quality of care in the future.

Financial risk, hospital cost, and complications and comorbidities (CCs) in non-CC stratified neurosurgical diagnostic related groups (DRGs).

The purpose of this study was to analyze hospital resource consumption in the nine neurosurgical DRGs not stratified by complicating condition (CCs) (i.e., those neurosurgical DRGs that give no additional payment for associated medical conditions or complications occurring in the hospital). We analyzed 148 Medicare patients in these non-CC stratified neurosurgical DRGs and found that patients with a greater number of CCs had higher hospital resource consumption, substantial financial risk under DRGs, and a poorer outcome than patients with no CCs. These data suggest that the current DRG classification scheme may be inequitable vis-à-vis the non-CC stratified neurosurgical DRGs at our hospital. Hospitals that treat significant numbers of these patients may face disincentives to care for them under prospective Medicare DRG reimbursement.

Financial risk, hospital cost, and complications and comorbidities (CCs) in the non-CC-stratified pulmonary medicine diagnostic-related group Medicare hospital payment system.

The purpose of this study was to analyze hospital resource consumption in the 8 noncomplicating condition-stratified pulmonary medicine diagnostic-related groups (DRGs). We analyzed 427 Medicare patients treated during a 2-yr period in these 8 noncomplicating condition-stratified DRGs. Patients with a greater number of complicating conditions (CCs) had higher total hospital costs, a longer hospital length of stay, more procedures per patient, increasing financial risk under DRGs, a larger number of outliers, and a higher mortality than did patients in these same DRGs with a fewer number of CCs. These findings raise the question of the equity of DRG reimbursement at our hospital vis-à-vis the non-CC-stratified pulmonary medicine DRGs. If these findings are generalizable at other teaching hospitals, the current DRG system may provide financial incentives to not treat certain types of pulmonary medicine patients likely to have many CCs, and potentially effect these patient's access and quality of care in the future.

Financial risk, hospital cost, and complications and comorbidities in medical non-complications and comorbidity-stratified diagnosis-related groups.

A number of methods are being studied to modify and improve the accuracy of the Medicare Diagnosis-Related Group (DRG) hospital classification system. This study analyzed resource consumption for 2,431 medical Medicare patients in the 53 non-complicating condition-stratified (i.e., non-complication and comorbidity) medical DRGs. Resource consumption per patient increased as the number of complications and comorbidities per patient per DRG increased, as measured by total hospital cost, hospital length of stay, the number of diagnoses and procedures per patient, the percent outliers, and mortality. Patients with more than four complications and comorbidities generated significant financial risk ($5,667 loss per patient) under DRG reimbursement. This study raises the question of the equity of DRG reimbursement for the medical non-complication and comorbidity-stratified DRGs. A method for DRG adjustment based on complications and comorbidities should be implemented by Congress to assure equitable payment for patients in these medical DRGs.

Financial risk, hospital cost, complications, and comorbidities in surgical noncomplication- and noncomorbidity-stratified diagnostic related groups.

The purpose of this study was to analyze resource consumption in the 147 non-complicating condition-stratified surgical diagnostic related groups (DRGs). Analysis of 2647 surgical patients in these non-CC-stratified surgical DRGs demonstrated that patients with more CCs per DRG generated higher total hospital costs, a longer hospital length of stay, a greater percentage of procedures per patient, financial risk under DRG payment, more outliers, and a higher mortality rates than patients in these same DRGs with fewer CCs. These findings suggest that the current DRG classification system may be inequitable to certain groups of patients or types of hospitals vis-à-vis the non-CC-stratified surgical DRGs. Financial disincentives to treat these patients may affect both their access and quality of care in the future.