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PubMed2005

Complications of craniofacial resection for malignant tumors of the skull base: report of an International Collaborative Study.

BACKGROUND: Advances in imaging, surgical technique, and perioperative care have made craniofacial resection (CFR) an effective and safe option for treating malignant tumors involving the skull base. The procedure does, however, have complications. Because of the relative rarity of these tumors, most existing data on postoperative complications come from individual reports of relatively small series of patients. This international collaborative report examines a large cohort of patients accumulated from multiple institutions with the aim of identifying patient-related and tumor-related predictors of postoperative morbidity and mortality and set a benchmark for future studies. METHODS: One thousand one hundred ninety-three patients from 17 institutions were analyzed for postoperative mortality and complications. Postoperative complications were classified into systemic, wound, central nervous system (CNS), and orbit. Statistical analyses were carried out in relation to patient characteristics, extent of disease, prior radiation treatment, and type of reconstruction to determine factors that predicted mortality or complications. RESULTS: Postoperative mortality occurred in 56 patients (4.7%). The presence of medical comorbidity was the only independent predictor of mortality. Postoperative complications occurred in 433 patients (36.3%). Wound complications occurred in 237 (19.8%), CNS-related complications in 193 (16.2%), orbital complications in 20 (1.7%), and systemic complications in 57 (4.8%) patients. Medical comorbidity, prior radiation therapy, and the extent of intracranial tumour involvement were independent predictors of postoperative complications. CONCLUSIONS: CFR is a safe surgical treatment for malignant tumors of the skull base, with an overall mortality of 4.7% and complication rate of 36.3%. The impact of medical comorbidity and intracranial tumor extent should be carefully considered when planning therapy for patients whose tumors are amenable to CFR.

Adolescent↗

PubMed2006

Intraoperative blood loss is a risk factor for complications in donors after living donor hepatectomy.

Complications in a donor are a distressing but inevitable occurrence, since graft procurement is a major undertaking. Although the technique for procurement has some similarities to hepatic resection, a donor is very unlike a patient with malignancy. The risk factors identified in these patients cannot be extrapolated to donors. Donor hepatectomy carried out from June 1995 to March 2005 in Chang Gung Memorial Hospital, Kaohsiung Medical Center was reviewed with the aim of identifying risk factors for complications. There were 204 living donor liver transplants, with 205 donor hepatectomies, as 1 living donor liver transplantation was a dual graft. Ten donors (4.88%) suffered complications. There was no difference in terms of age, gender, body weight, operation, and parenchymal time between those who had complications and those who did not. There was also no difference in liver function tests between the 2 groups of donors, but the total bilirubin was significantly higher in donors with complications. The graft weight and remnant liver volume were also similar. The proportion of donors with fatty liver was the same between the 2 groups. The mean blood loss in donors with complications was 170 +/- 79 mL, and that for donors without complications was 95 +/- 77 mL. There was a statistically significant greater blood loss in donors with complications (P < 0.05). The number of segments removed in donors with complications was also higher compared to donors without complications (P < 0.03). Using multivariate analysis, intraoperative blood loss and the number of segments removed were found to be independent risk factors for donor complications. Intraoperative blood loss during graft procurement must be kept low to minimize complications in donors.

Adult↗

PubMed2006

Laparoscopic appendectomy is a favorable alternative for complicated appendicitis in children.

Laparoscopic appendectomy in children is a generally accepted procedure for the treatment of non-complicated acute appendicitis. Nevertheless, the role of laparoscopy in complicated appendicitis is more controversial. The objective of this study was to examine the safety, efficacy and complications of laparoscopy in children with complicated appendicitis. This is a retrospective review of the children who underwent laparoscopic appendectomy for complicated appendicitis at King Khalid University Hospital, Riyadh, Saudi Arabia between January 1998 and March 2006. Complicated appendicitis includes perforated appendicitis, gangrenous appendicitis and appendicular masses found intra-operatively. Data collected include demographic, duration of symptoms, operative time, analgesia, complications, length of hospitalization and histopathology. Laparoscopic appendectomy was done by three trocar technique in all cases. During the study period, 59 children aged 3-12 years underwent laparoscopic appendectomy for complicated appendicitis. There were 34 patients with perforated appendicitis, 12 patients with gangrenous appendicitis and 13 patients with appendicular mass. The average operating time was 62 min. The average length of hospitalization was 5 days. The post-operative narcotic analgesic requirement was minimal. Laparoscopy was converted to open surgery in two patients (3.38%). These two cases were excluded from further analysis. Four out of 57 patients (7.01%) had post-operative complications. Three patients (5.26%) developed wound infection. One patient (1.75%) developed haematoma at umbilical port site. There was no post-operative intra-abdominal collection. Laparoscopic appendectomy is a safe alternative for the treatment of complicated appendicitis. It does not increase the incidence of complications even with complicated appendicitis. Contrary to the previous studies, we did not have increased incidence of intra-abdominal collection in this review. However, prospective randomized controlled trials are needed to verify these findings.

Appendectomy↗

PubMed2003

Complication registration in patients after peripheral arterial bypass surgery.

The objective of this study was to describe the kinds of complications and their incidence after peripheral vascular surgery of the lower limb, coding for causes and effect on the patient. In this prospective study, a standardized complication registration system was used at the Red Cross Hospital, The Hague. All patients (n = 373) receiving an infrainguinal bypass graft during the period January 1, 1996 to December 31, 1999 were included. All postoperative complications occurring during admission were coded. In 29% of the patients 153 complications were coded. Early occlusions of the graft occurred 36 times, wound infections 21 times and postoperative hemorrhages 20 times. Postoperative retention of urine was seen most frequently of all nonspecific complications (n = 22). In 43 cases the patient needed medication or a blood transfusion for his complication. In 42 cases a re-intervention was necessary. Complications led to a prolonged stay in the hospital in 20 cases. Six patients died during admittance (mortality 1.6%). An error in surgical therapy and error in nonsurgical therapy were the cause of the complication in 108 cases (out of 153). The advantage of this complication registration is that it describes all complications, not just the specific ones. Furthermore, by categorizing all complications we force ourselves to look for errors in nonsurgical therapy and surgical technique and to describe the effect of the complication.

Adult↗

PubMed2002

Complications of burr-hole craniostomy and closed-system drainage for chronic subdural hematomas: a retrospective analysis of 376 patients.

OBJECTIVE: Burr-hole craniostomy with closed-system drainage (BCD) is the most frequently used neurosurgical treatment of chronic subdural hematomas (cSDH). The surgical and medical complications of BCD have seldom been investigated systematically. The objective of this study was to define the frequency of surgical and medical complications following BCD for cSDH. METHODS: The medical records of 376 patients managed by BCD were reviewed with respect to complications during the hospital stay. RESULTS: Seventy-seven surgical complications (20.5%) were encountered. The most frequent minor complication after surgery was seizures (n 51, 13.6%). The most frequent major surgical complications were intracerebral hemorrhage and subdural empyema (n 8, 2.1% each). Four patients with intracerebral hemorrhage died, accounting for a surgical mortality rate of 1.1%. Fifty-nine medical complications (15.7%) occurred during the hospital stay. Pneumonia was the most frequent medical complication (n 29, 7.7%). Medical complications were fatal in 24 patients, accounting for a mortality rate of 6.4%. In 22 patients (5.8%), death was not related to a complication, but to the initial brain damage. The overall mortality rate was 13.3%. CONCLUSION: The rate of complications in patients with cSDH who underwent the BCD is high. The clinical relevance of medical complications has to be emphasized because of their substantial contribution to overall mortality.

Chronic Disease↗

PubMed2006

Nephron-sparing surgery for renal cell carcinoma: detailed analysis of complications over a 15-year period.

PURPOSE: To assess the incidence of complications of conservative renal surgery for renal cell carcinoma in both elective and imperative indications, and its evolution over a 15 year period. PATIENTS AND METHODS: From 1988 to 2003, 127 patients underwent partial nephrectomy or tumorectomy for renal cell carcinoma in our department. INDICATIONs were imperative in 42% (n = 53) and elective in 58% (n=74) of cases. Morbidity was retrospectively assessed according to four parameters: 1- Period of surgery: A, from 1988 to 1999 and B, from 2000 to 2003. 2- INDICATION: elective vs. imperative. 3- experience of surgeon: senior vs. junior. 4- Nature of complications: minor or major. Comparative analysis was conducted using Chi-square and Fischer exact tests. RESULTS: Global incidence of complications was 30.7% (n = 39) corresponding to 18.1% minor (n = 23) and 12.6% (n = 16) major complications. Results show a moderate decrease of complication rate during Period B: 28.1% versus 32.9% during period A (p = 0.69). Complications occurred more frequently in imperative indications (49.1%) than in elective indications (17.6%) (p = 0.002), mostly regarding major complications (respectively 28.3% and 1.4%. (p < 0.001)). Overall re-intervention rate was 15.7%: 22.6% in imperative and 10.8% in elective indications (p = 0.008). Mean length of hospital stay was 14.1 days and significantly longer during period A (p = 0.003) and in imperative indications (p = 0.009). CONCLUSION: In our study, conservative renal surgery has a significant rate of complications which is extremely variable regarding to different parameters. Most discriminating factor was indication: in imperative indications, we observed a high rate of major complications (28.3%) that we consider acceptable to prevent anephria in clearly informed patients. Major complications are exceptional in elective indications. Decreased incidence of complications during the later period (B) is modest, and the role played by systematic pedicular clampage is discussed. As results published in medical literature are difficult to compare, we agree with authors who recently proposed to standardize complications data analysis, using a gravity scale, in order to provide relevant information to patients about statistical risks before surgery.

Acute Kidney Injury↗

PubMed2005

Investigation of clinical and dosimetric factors associated with postoperative pulmonary complications in esophageal cancer patients treated with concurrent chemoradiotherapy followed by surgery.

PURPOSE: To assess the association of clinical and especially dosimetric factors with the incidence of postoperative pulmonary complications among esophageal cancer patients treated with concurrent chemoradiation therapy followed by surgery. METHOD AND MATERIALS: Data from 110 esophageal cancer patients treated between January 1998 and December 2003 were analyzed retrospectively. All patients received concurrent chemoradiotherapy followed by surgery; 72 patients also received irinotecan-based induction chemotherapy. Concurrent chemotherapy was 5-fluorouracil-based and in 97 cases included taxanes. Radiotherapy was delivered to a total dose of 41.4-50.4 Gy at 1.8-2.0 Gy per fraction with a three-dimensional conformal technique. Surgery (three-field, Ivor-Lewis, or transhiatal esophagectomy) was performed 27-123 days (median, 45 days) after completion of radiotherapy. The following dosimetric parameters were generated from the dose-volume histogram (DVH) for total lung: lung volume, mean dose to lung, relative and absolute volumes of lung receiving more than a threshold dose (relative V(dose) and absolute V(dose)), and absolute volume of lung receiving less than a threshold dose (volume spared, or VS(dose)). Occurrence of postoperative pulmonary complications, defined as pneumonia or acute respiratory distress syndrome (ARDS) within 30 days after surgery, was the endpoint for all analyses. Fisher's exact test was used to investigate the relationship between categorical factors and incidence of postoperative pulmonary complications. Logistic analysis was used to analyze the relationship between continuous factors (e.g., V(dose) or VS(dose)) and complication rate. Logistic regression with forward stepwise inclusion of factors was used to perform multivariate analysis of those factors having univariate significance (p < 0.05). The Mann-Whitney test was used to compare length of hospital stay in patients with and without lung complications and to compare lung volumes, VS5 values, and absolute and relative V5 values in male vs. female patients. Pearson correlation analysis was used to determine correlations between dosimetric factors. RESULTS: Eighteen (16.4%) of the 110 patients developed postoperative pulmonary complications. Two of these died of progressive pneumonia. Hospitalizations were significantly longer for patients with postoperative pulmonary complications than for those without (median, 15 days vs. 11 days, p = 0.003). On univariate analysis, female gender (p = 0.017), higher mean lung dose (p = 0.036), higher relative volume of lung receiving > or = 5 Gy (V5) (p = 0.023), and smaller volumes of lung spared from doses > or = 5-35 Gy (VS5-VS35) (p < 0.05) were all significantly associated with an increased incidence of postoperative pulmonary complications. No other clinical factors were significantly associated with the incidence of postoperative pulmonary complications in this cohort. On multivariate analysis, the volume of lung spared from doses > or = 5 Gy (VS5) was the only significant independent factor associated with postoperative pulmonary complications (p = 0.005). CONCLUSIONS: Dosimetric factors but not clinical factors were found to be strongly associated with the incidence of postoperative pulmonary complications in this cohort of esophageal cancer patients treated with concurrent chemoradiation plus surgery. The volume of the lung spared from doses of > or = 5 Gy was the only independent dosimetric factor in multivariate analysis. This suggests that ensuring an adequate volume of lung unexposed to radiation might reduce the incidence of postoperative pulmonary complications.

Analysis of Variance↗

PubMed2006

Complications encountered in a prospective series of 182 patients treated surgically for mouth cancer.

Outcomes of surgical treatment for patients with mouth cancer can be limited by the risk of perioperative complications. This study identifies factors that predict for complications in such patients. Between 1992 and 2000, 182 patients had surgery for mouth cancer. The patient, their medical and surgical characteristics as well as perioperative complications were identified. Univariate analysis was carried out to determine which characteristics were associated with complications. Complications occurred in 85 patients (47%). Fifty-three percent of the complications were of intermediate severity and 15.6% were major. The operative death rate was 3.2%. Factors predicting complications included pre-existing cardiovascular (p<0.01) and respiratory disease (p=0.02), alcohol consumption (p<0.01), stage of disease, nature and scale of surgery, duration of surgery (p<0.01). Tracheostomies (p<0.01, OR 3.05), poor differentiation of tumour (p<0.05) and presence of extracapsular spread were predictive of complications. Patients with more complications are at increase risk of operative death or dying with head and neck cancer (p=0.04). Complications were also analysed into those that may be related to surgical technique and medical management. 113 (37%) complications were in this category. Factors influencing complications are multifactorial. Identification of risk factors allows individualised approach should improve outcome of treatment.

Female↗

PubMed2003

Biliary complications after pediatric liver transplantation revisited.

BACKGROUND: Biliary complications in pediatric liver transplantation (PLT) are associated with increased morbidity and mortality. METHODS: Prospectively, data was collected on 89 consecutive liver transplants performed in 82 children. Eighty-nine consecutive PLTs were tracked for transplant type (partial versus whole), recipient age/weight, duct anastomosis type, surgical technique, and biliary complications. Treatments of biliary complications (surgical versus interventional radiology) were also evaluated. RESULTS: Forty-six children (51.7%) received partial transplants and 43 (48.3%) children received whole organs. The average age for whole liver transplanted children was 8.95 +/- 6.62 years and average weight was 36.2 +/- 28.7 kg; for those receiving partial livers, 3.19 +/- 3.52 years and 14.1 +/- 13.0 kg. Duct-to-duct anastomosis was performed for 26 grafts and Roux-en-Y choledochojejunostomy for 63 grafts. Biliary complications occurred in 10 of 89 (11.2%) grafts. Complications included anastomotic strictures in four (40%), bile leak in five (50%), intraparenchymal biloma in one (10%). The complication rate for whole organs was 1/43 (2.3%) and 9/46 (19.6%) for partial organ (P =. 015). No difference in complication rates were seen in type of ductal anastomosis (7.7% vs 12.7%, P = NS). Reoperation for biliary complication was necessary in only 2/10 (20%) of grafts. CONCLUSIONS: Technical advances have reduced the incidence of biliary complications in PLT. Partial liver grafts have a statistically higher risk of biliary complication than whole grafts. Most biliary complications can be managed with radiological intervention without surgical exploration. Pediatric biliary complications are not associated with graft loss.

Anastomosis, Roux-en-Y↗

PubMed2003

Complications of mandibular fractures in an urban teaching center.

PURPOSE: In this study, we compared the complications associated with open and closed treatment of mandibular fractures in an urban teaching center over a 4-year period. PATIENTS AND METHODS: We conducted a retrospective review of mandibular fracture morbidity associated with treatment by the oral and maxillofacial surgery service between 1996 and 2000. A total of 721 fractures were recorded, with 594 fractures available for review. Perioperative and postoperative complications were assessed by reviewing patient charts, operative reports, and radiographs. Complications were classified by location, type of complication, and treatment modality. Standard statistical tests were used to assess differences between the groups. RESULTS: Of the 594 fractures available for review, a total of 79 fractures were noted to have had a complication (13.3%). One hundred five complications were observed in the group of 79 fractures due to more than one complication being associated with a specific fracture (15.8%). Closed reductions accounted for the largest treatment group, representing 341 fractures with 26 complications (7.6%). Miniplate fixation was used in 97 cases, with 23 complications (23.7%). Mandibular plates with or without a superior border miniplate were used in 140 fractures, with 28 complications (20%). The most common complication was wound infection, which occurred in 35 fracture sites, followed by nonunion, which occurred at 30 sites. CONCLUSION: In an urban area with a high prevalence of poor living conditions, substance abuse, and poor patient compliance, the treatment of mandibular fractures by closed reduction resulted in the least number of postoperative complications in all anatomic regions of the mandible. The mandibular angle fracture had the highest overall morbidity rate.

Bone Plates↗

PubMed1995

Intraoperative complications of revision hip arthroplasty using a fully porous-coated straight cobalt-chrome femoral stem.

The operative complications of a consecutive series of 135 cementless revision total hip arthroplasties using a fully porous-coated straight cobalt-chrome femoral stem were reviewed. Intraoperative complications occurred in 59 cases (44%), 22 of which (37%) involved more than one complication. Three categories of intraoperative complications were recorded: eccentric reaming, femoral perforation, and femoral fracture. Complications were noted to decrease throughout the period of the study. Surgical approach did not affect the complication rate. Stem length, stem diameter, and host-bone quality all affected the complication rate. Femoral perforations and fractures were more numerous with femoral stems longer than 200 mm. Larger-diameter femoral stems (> or = 18 mm) were associated with a higher complication rate (55%). Complications were also more numerous with poorer-quality host-bone. In cases of multiple complications, eccentric reaming often predisposed bone to perforation and subsequently to fracture. There was also greater blood loss in patients with intraoperative complications. Intraoperative complications may be avoided with the use of implants, as well as reaming no longer than absolutely necessary, and the use of intraoperative radiographs or flexible reamers early in femoral canal preparation.

Adult↗

PubMed2001

[Complications of laparoscopy in gynecology].

In the field of surgery the development of operative laparoscopy has been one of the most important steps forward over the past fifteen years. This technique has become the surgical treatment of choice for a number of indications in gynaecology. The advantages of laparoscopy as compared with laparotomy are weil known, and assessment of the risk of complications is essential. A multicentric study was carried out in seven top French centres for laparoscopic gynaecological surgery. This series runs over a period of nine years and covers 29,966 diagnostic and operative laparoscopies. The risk of complications has been assessed according to the complexity of the laparoscopic procedure in question. The means of diagnosis and treatment of the complications have been analysed together with the importance of the surgeon's degree of experience. The mortality rate is 3.33 per hundred thousand laparoscopies. The overall complication rate is 4.64 per thousand laparoscopies (139 cases). The rate of complications requiring laparotomy is 3.20 per thousand (96 cases). The complication rate is significantly correlated with the complexity of the laparoscopic procedure (p = 0.0001). One out of three complications (34.1%; 43 cases) occurred while setting up for laparoscopy, and one out of four complications (28.6%) were not diagnosed during the operation. As new indications for laparoscopic surgery in gynaecology have appeared, there has been a parallel and statistically significant increase in the rate of urological complications (p = 0.001). Increased experience of the surgeons has had three consequences: a statistically significant drop in the number of bowel injuries (p = 0.0003), a drop in the rate of complications requiring laparotomy for those laparoscopic surgical procedures which are weil-defined (p = 0.01) and a change in the way complications are treated, with a significant increase in the proportion of incidents treated by laparoscopy (p = 0.0001). Laparoscopic surgery is a reliable technique. The risk of complications exists whatever the indication for laparoscopy. None of the phases in the operation must be neglected. The risk of accidents being overlooked means that the methods for postoperative follow-up must be adapted, bearing in mind the shorter hospital stay. The part played by the surgeon's experience raises the major problem of practitioner training.

Female↗

PubMed2001

Hospital separations indicate increasing need for prevention of diabetic foot complications in central Australia.

The aim of this study was to guide service provision for prevention of diabetic foot complications through the analysis of hospital separation data for those with diabetes in central Australia. We reviewed the hospital separation data for central Australia from 1992 to 1997 for adults known to be diabetic and those with diabetic foot complications. Foot complications were identified from International Classification of Diseases-9th Revision (ICD-9) codes. Additionally, we assessed the proportion of cases with diabetic foot, identified by ICD-9 coding and confirmed by record review, that were identified by Australian National-Diagnostic Related Group-Version 3 (AN-DRG-3) coding. Separations with diabetes doubled from 352 in 1992 to 796 in 1997. This represents an increase from 1232 to 2521 separations per 100,000 people over 15 years of age. Separations with foot complications increased threefold from 28 in 1992 to 90 in 1997, a rate increase from 98 to 285 per 100,000 people over 15 years of age. The proportion of diabetes separations that had foot complications remained around 10% during the 6 year period. Aboriginal people made up 89% of the individuals with foot complications and 91% of separations for diabetic foot. Foot complications were predominantly of the more acute type (90%), amenable to early intervention. The AN-DRG-3 code for diabetic foot identified only 59% (37/63 in 1997) of the separations identified by the ICD-9 codes, and admitted primarily for foot complications in Alice Springs Hospital. The known burden of hospital care for diabetes and diabetic foot complications has increased markedly in recent years. A combination of changes in prevalence, primary care utilisation, detection, hospital access or re-admission rates may underlie the observed increases. As it is very unlikely that diabetes or diabetic foot complications are being over diagnosed, or that the hospitals are over utilised, this analysis shows there is an increasingly apparent need for improved prevention of diabetic foot complications. Therefore primary health care systems should ensure that they implement evidence-based care for preventing foot complications among people with diabetes.

Adolescent↗

PubMed2003

Complications associated with peripherally inserted central catheter use during pregnancy.

OBJECTIVE: The purpose of this study was to evaluate the complications of peripherally inserted central catheter use in an obstetrics population at a single institution over a 5-year period. STUDY DESIGN: We conducted a descriptive retrospective review of all obstetrics patients with peripherally inserted central catheter insertion during the antepartum period at Good Samaritan Regional Medical Center, from January 1, 1997, through September 30, 2001. RESULTS: During the 5 years of the study, complete data regarding the primary admission diagnoses for peripherally inserted central catheter placement and associated complications were available for 52 cases. An associated complication rate of 50% (n = 26 cases) was noted. The complications included culture-proved line infection (n = 9/52 complications, 17%), presumed line infection (n = 6/52 complications, 12%), cellulitis (n = 4/52 complications, 8%), mechanical line failure (n = 4/52 complications, 8%), pain that required line discontinuation (n = 2/52 complications, 4%), and superficial thrombophlebitis (n = 1/52 complications, 2%). A chi(2) analysis was performed, and preterm labor may be associated with an increased risk for peripherally inserted central catheter complication (P =.012). CONCLUSION: Patients who receive a peripherally inserted central catheter during pregnancy are at significant risk for infectious complications. Alternative treatment approaches are suggested, where appropriate.

Catheterization, Peripheral↗

PubMed2006

Complications of blepharoplasty.

The complications of blepharoplasty are infrequent, most often minor and transient, and rarely major and permanent with functional or aesthetic consequences. Treatment is above all preventive with screening of "at risk" patients in whom blepharoplasty would be contra-indicated. Patients must be informed of possible risks through informative booklets stressing the most important points. The complications may affect vision. Partial or complete visual loss due to ischemic optic neuropathy, or rarely to compression of the ocular globe by intraorbital hemorrhage, is the most serious complication. Other visual complications include oculomotor disorders, keratoconjunctivitis sicca, epiphora, and chemosis of lymphatic origin. Eyelid complications are more frequent: ptosis of the upper eyelid or lagophthalmia caused by incorrect resection of the skin, scarring, and eyelid fold anomalies. The most severe aesthetic complication is the malposition of the lower eyelid resulting in retraction, lagophthalmia, ectropion, deformation of the external canthus, or lower eyelid tissue relaxation. These malpositions are often minor, sometimes reversible, but they can be major, with psychological, aesthetic, and functional consequences. Other local complications include enophthalmia and hypo- or hypercorrection. General complications may include pigmentation anomalies or infections extending as far as the orbital fat tissue. Finally, complications observed after the newer procedures of laser surgery include ectropion, burns and residual redness. Complications related to periocular injections of filling material are also mentioned. The discussion of these complications is followed by a comprehensive review of the prevention, diagnosis and management of the complications after blepharoplasty.

Blepharoplasty↗

PubMed2002

The association of complication type with mortality and prolonged stay after cardiac surgery with cardiopulmonary bypass.

UNLABELLED: Outcome after cardiac surgery varies depending on complication type. We therefore sought to determine the association between complication type, mortality, and length of stay in a large series of patients undergoing cardiac surgery with cardiopulmonary bypass (CPB). Multivariate logistic regression was used to test for differences between complication types in mortality and prolonged length of stay (>10 days) while controlling for preoperative and intraoperative risk factors. In 2609 consecutive cardiac surgical patients requiring CPB, the mortality rate was 3.6%; 36.5% had one or more complications, and 15.7% experienced an adverse outcome (death or prolonged length of stay). Multivariate logistic regression demonstrated that complication type was significantly associated with adverse outcome (P < 0.001) independent of Parsonnet score and CPB time (c-index = 0.80). The development of noncardiac complications only (Group NC) and cardiac complications with other organ involvement (Group B) significantly increased mortality and hospital and intensive care unit length of stay (P < 0.001) when compared with cardiac complications only (Group C). The incidences of adverse outcome in Groups C, NC, and B were 15%, 43%, and 67%, respectively; the mortality rates were 3%, 7%, and 20%, respectively. All these intergroup comparisons were significantly different (adjusted P < 0.05). Complications involving organs other than the heart appear to be more deleterious than cardiac complications alone, underscoring the need for strategies to reduce noncardiac complications. IMPLICATIONS: Complications, particularly when they involve organs other than just the heart, increase mortality and prolong the length of hospital stay after heart surgery, independent of a patient's preoperative risk factors and the duration of cardiopulmonary bypass. Strategies aimed at preventing damage to other organs during cardiac surgery need to be improved.

Adult↗

PubMed1994

The effect of complications on length of stay.

OBJECTIVES: The authors determined the effect of complications on length of stay (LOS) in surgical patients. SETTING: From 1987 to 1990, in the Professional General Surgical Unit of Royal Victoria Hospital, a retrospective survey was conducted on 5128 consecutively admitted patients with 396 different diagnosis; 228 different operations were examined. MAIN OUTCOME MEASURES: Patient LOS during a 3-year period in a general surgical ward was analyzed from hospital activity analysis, case notes, ward audit notes, and sepsis audit notes. Readmission rates for complications in patients with a short LOS were examined. Comparison were made between LOS and age, type of surgery, and complication type. RESULTS: Pressure on beds resulting from an increased demand on surgical care decreases patient's hospital LOS; increasing age increases LOS. In general, complications double the average LOS. The authors calculated that a surgical complication can be given a numerical ratio that directly reflects the severity of the complication and increases the patient's LOS. The ration of the infective complication corresponds with the clinical severity of the complication. However, a short LOS may lead to readmission of patients for further treatment. For patients readmitted with complications, 41% had been discharged earlier than the average LOS for their diagnosis. CONCLUSION: Length of stay is increased by complications and can be used to implement discharge planning in general surgical patients. Furthermore, a complication of their treatment can be given a numerical ratio that corresponds to the clinical severity of the complication and the increased LOS in hospital.

Adolescent↗

PubMed1996

Comorbidity-adjusted complication risk: a new outcome quality measure.

The measurement of inpatient complications his received substantial attention in recent years because mortality rates and other outcome measures often appear unable to discriminate superior from inferior hospital care. Complication measurement holds out the promise of being more sensitive to variations in patient care because complications occur more frequently than do mortalities, and because complications are more direct consequences of the process of care. The authors developed a new measure of complications that seeks to give insight into the patient care given by different hospitals or physicians by using commonly available data. Specifically, this measure is based on a decision-theoretic model that estimates the probability of a complication for combinations of admitting and secondary International Classification of Diseases, 9th Revision, Clinical Modification diagnoses. The measure can be evaluated at the patient level, or aggregated and risk-adjusted for the population of a given care provider (eg, physician or hospital). When applied to a set of patient-level UB- 82/92 data, this measure estimates the risk of complication for any member of a population, controlling for comorbidity, and hence is designated comorbidity-adjusted complication risk (CACR). The authors describe the development of CACR and its testing and validation using data acquired from the states of Pennsylvania, California, and Florida, as well as facility data obtained directly from hospitals. The data set includes 480,000 patients from 50 Pennsylvania hospitals, 300,000 patients from 33 Florida hospitals, 370,000 patients from 35 California hospitals, and 37,000 patients from six validation hospitals. Comorbidity-adjusted complication risk is constructed from widely available data common to most patient cases. Comorbidity-adjusted complication risk can be adjusted for its case mix, but such risk adjustment has much less effect on CACR than on other adverse outcomes such as mortality and morbidity. Comorbidity-adjusted complication risk varies widely across the hospitals in this sample, yet it is stable across time and is correlated with other known quality outcomes, including such accepted "gold standards" as hospital-documented adverse event rates and chart review determinations of complications.

Aged↗