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Critical Reviews in Clinical Laboratory... Jan 2024Acute kidney injury (AKI) is a commonly encountered clinical syndrome. Although it often complicates community acquired illness, it is more common in hospitalized... (Review)
Review
Acute kidney injury (AKI) is a commonly encountered clinical syndrome. Although it often complicates community acquired illness, it is more common in hospitalized patients, particularly those who are critically ill or who have undergone major surgery. Approximately 20% of hospitalized adult patients develop an AKI during their hospital care, and this rises to nearly 60% in the critically ill, depending on the population being considered. In general, AKI is more common in older adults, in those with preexisting chronic kidney disease and in those with known risk factors for AKI (including diabetes and hypertension). The development of AKI is associated with an increase in both mortality and morbidity, including the development of post-AKI chronic kidney disease. Currently, AKI is defined by a rise in serum creatinine from either a known or derived baseline value and/or oliguria or anuria. However, clinicians may fail to recognize the initial development of AKI because of a delay in the rise of serum creatinine or because of inaccurate urine output monitoring. This, in turn, delays any putative measures to treat AKI or to limit its degree. Consequently, efforts have focused on new biomarkers associated with AKI that may allow early recognition of this syndrome with the intent that this will translate into improved patient outcomes. Here we outline current biomarkers associated with AKI and explore their potential in aiding diagnosis, understanding the pathophysiology and directing therapy.
Topics: Humans; Aged; Critical Illness; Creatinine; Biomarkers; Acute Kidney Injury; Renal Insufficiency, Chronic
PubMed: 37668397
DOI: 10.1080/10408363.2023.2242481 -
Peritoneal Dialysis International :... Jul 2020Intraperitoneal vancomycin is the first-line therapy in the management of peritoneal dialysis (PD)-related peritonitis. However, due to the paucity of data, vancomycin... (Review)
Review
Intraperitoneal vancomycin is the first-line therapy in the management of peritoneal dialysis (PD)-related peritonitis. However, due to the paucity of data, vancomycin dosing for peritonitis in patients on automated peritoneal dialysis (APD) is empiric and based on clinical experience rather than evidence. Studies in continuous ambulatory peritoneal dialysis (CAPD) patients have been used to provide guidelines for dosing and are often extrapolated for APD use, but it is unclear whether this is appropriate. This review summarizes the available pharmacokinetic data used to inform optimal dosing in patients on CAPD or APD. The determinants of vancomycin disposition and pharmacodynamic effects are critically summarized, knowledge gaps explored, and a vancomycin dosing algorithm in PD patients is proposed.
Topics: Anti-Bacterial Agents; Humans; Kidney Failure, Chronic; Peritoneal Dialysis; Peritonitis; Vancomycin
PubMed: 32065053
DOI: 10.1177/0896860819889774 -
Journal of the American Animal Hospital... 2018Perineal hernia refers to the failure of the muscular pelvic diaphragm to support the rectal wall, resulting in herniation of pelvic and, occasionally, abdominal viscera... (Review)
Review
Perineal hernia refers to the failure of the muscular pelvic diaphragm to support the rectal wall, resulting in herniation of pelvic and, occasionally, abdominal viscera into the subcutaneous perineal region. The proposed causes of pelvic diaphragm weakness include tenesmus associated with chronic prostatic disease or constipation, myopathy, rectal abnormalities, and gonadal hormonal imbalances. The most common presentation of perineal hernia in dogs is a unilateral or bilateral nonpainful swelling of the perineum. Clinical signs do occur, but not always. Clinical signs may include constipation, obstipation, dyschezia, tenesmus, rectal prolapse, stranguria, or anuria. The definitive diagnosis of perineal hernia is based on clinical signs and findings of weak pelvic diaphragm musculature during a digital rectal examination. In dogs, perineal hernias are mostly treated by surgical intervention. Appositional herniorrhaphy is sometimes difficult to perform as the levator ani and coccygeus muscles are atrophied and unsuitable for use. Internal obturator muscle transposition is the most commonly used technique. Additional techniques include superficial gluteal and semitendinosus muscle transposition, in addition to the use of synthetic implants and biomaterials. Pexy techniques may be used to prevent rectal prolapse and bladder and prostate gland displacement. Postoperative care involves analgesics, antibiotics, a low-residue diet, and stool softeners.
Topics: Animals; Dog Diseases; Dogs; Hernia; Herniorrhaphy; Perineum
PubMed: 29757662
DOI: 10.5326/JAAHA-MS-6490 -
Trauma Surgery & Acute Care Open 2020This is a case report of a patient who sustained a stab wound to the right axilla with injuries to the right axillary artery and vein. The patient had...
This is a case report of a patient who sustained a stab wound to the right axilla with injuries to the right axillary artery and vein. The patient had near-exsanguination in the field and no recordable blood pressure upon admission to the trauma center. Resuscitation was performed with endotracheal intubation, a left anterolateral resuscitative thoracotomy with cross-clamping of the descending thoracic aorta, and the rapid infusion of crystalloid solutions and packed red cells. In the operating room, the third portion of the right axillary artery and the adjacent right axillary vein were found to be transected. As part of a 'damage control' procedure, the ends of the right axillary vein were ligated. A 14 French intra-arterial shunt was inserted into the transected ends of the right axillary artery to restore the flow to the right upper extremity. The patient's postoperative course was complicated by a coagulopathy, adult respiratory distress syndrome (ARDS), and anuria. The coagulopathy and anuria resolved within the first 48 hours, but the patient's ARDS was slow to resolve. On the 10th postinjury day, the patient was returned to the operating room for a definitive repair of the right axillary artery. After the intra-arterial shunt was removed, a reversed greater saphenous vein graft was inserted between the ends of the right axillary artery in a medial intermuscular (extra-anatomic) tunnel. The patient made an uneventful recovery and was discharged home on the 16th postinjury day. The following principles of advanced trauma care were part of the management of this patient: (1) occasional need for resuscitative thoracotomy with cross-clamping of the descending thoracic aorta in a patient without a thoracic injury; (2) 'damage control' operation with ligation of the right axillary vein and placement of a temporary intra-arterial shunt to restore the flow to the right upper extremity; and (3) vascular reconstruction with an extra-anatomic bypass in a previously contaminated field.
PubMed: 32577532
DOI: 10.1136/tsaco-2020-000486 -
Journal of Veterinary Internal Medicine Mar 2022Acute kidney injury (AKI) is a common, potentially fatal condition.
BACKGROUND
Acute kidney injury (AKI) is a common, potentially fatal condition.
OBJECTIVES
To characterize the etiologies, clinical and clinicopathologic findings, hospitalization period, and outcome of dogs with AKI and to identify markers of negative prognosis.
ANIMALS
Two hundred forty-nine client-own dogs diagnosed with AKI and hospitalized at a veterinary teaching hospital.
METHODS
Retrospective study. Search of medical records for dogs with AKI.
RESULTS
Common clinical signs included lethargy (225/249, 90%), anorexia (206/249, 83%), and vomiting (168/249, 68%). Etiologies included ischemic/inflammatory (144/249, 58%), infectious (19/249, 8%), nephrotoxicosis (14/249, 6%), or other (13/249, 5%). Hospital-acquired AKI was diagnosed in 9% (23/249) of the dogs. Median presentation and peak serum creatinine (sCr) concentrations were 4 mg/dL (range, 1.1-37.9) and 4.6 mg/dL (range, 1.1-43.1), respectively. Dogs were classified to AKI grades as follows: Grade I, 6 (2%), Grade II, 38 (15%), Grade III, 89 (36%), Grade IV, 77 (31%), and Grade V, 39 (16%). One hundred and sixty-four (66%) dogs survived. There was a positive association between death and AKI grade (P = .009). The case fatality rate was higher among dogs with anuria compared with dogs without anuria (50% vs 28%, respectively; odds ratio [95% confidence interval]: 2.5 [1.39-4.6]; P = .002). Forty-seven (18.8%) dogs underwent hemodialysis, of which 60% survived.
CONCLUSION AND CLINICAL IMPORTANCE
Two-thirds of dogs with AKI survived. Hospital-acquired AKI was common. The severity of AKI, as reflected by presence of anuria, AKI grade, and other body organs involvement, was associated with the outcome.
Topics: Acute Kidney Injury; Animals; Creatinine; Dog Diseases; Dogs; Hospitals, Animal; Hospitals, Teaching; Prognosis; Retrospective Studies
PubMed: 35103347
DOI: 10.1111/jvim.16375 -
Journal of the College of Physicians... Oct 2015A13 years girl presented with history of sudden onset fits, altered sensorium and anuria for 2 days. There was also history of right sided weakness of the whole body....
A13 years girl presented with history of sudden onset fits, altered sensorium and anuria for 2 days. There was also history of right sided weakness of the whole body. Past history revealed repeated episodes of similar complaints since early childhood. On the basis of history, physical examination and extensive investigations, patient was diagnosed as Upshaw-Schulman syndrome, a rare case of congenital Thrombotic Thrombocytopenic Purpura (TTP). She is now in remission and being maintained on twice weekly transfusions of Fresh Frozen Plasma (FFP).
Topics: Adolescent; Female; Humans; Plasma; Plasmapheresis; Purpura, Thrombotic Thrombocytopenic; Treatment Outcome
PubMed: 26522217
DOI: 10.2015/JCPSP.S9799 -
Pediatric Nephrology (Berlin, Germany) Nov 2018Thrombotic microangiopathy (TMA) refers to phenotypically similar disorders, including hemolytic uremic syndromes (HUS) and thrombotic thrombocytopenic purpura (TTP).... (Review)
Review
Thrombotic microangiopathy (TMA) refers to phenotypically similar disorders, including hemolytic uremic syndromes (HUS) and thrombotic thrombocytopenic purpura (TTP). This review explores the role of the influenza virus as trigger of HUS or TTP. We conducted a literature survey in PubMed and Google Scholar using HUS, TTP, TMA, and influenza as keywords, and extracted and analyzed reported epidemiological and clinical data. We identified 25 cases of influenza-associated TMA. Five additional cases were linked to influenza vaccination and analyzed separately. Influenza A was found in 83%, 10 out of 25 during the 2009 A(H1N1) pandemic. Two patients had bona fide TTP with ADAMTS13 activity <10%. Median age was 15 years (range 0.5-68 years), two thirds were male. Oligoanuria was documented in 81% and neurological involvement in 40% of patients. Serum C3 was reduced in 5 out of 14 patients (36%); Coombs test was negative in 7 out of 7 and elevated fibrin/fibrinogen degradation products were documented in 6 out of 8 patients. Pathogenic complement gene mutations were found in 7 out of 8 patients tested (C3, MCP, or MCP combined with CFB or clusterin). Twenty out of 24 patients recovered completely, but 3 died (12%). Ten of the surviving patients underwent plasma exchange (PLEX) therapy, 5 plasma infusions. Influenza-mediated HUS or TTP is rare. A sizable proportion of tested patients demonstrated mutations associated with alternative pathway of complement dysregulation that was uncovered by this infection. Further research is warranted targeting the roles of viral neuraminidase, enhanced virus-induced complement activation and/or ADAMTS13 antibodies, and rational treatment approaches.
Topics: ADAMTS13 Protein; Anuria; Atypical Hemolytic Uremic Syndrome; Complement Pathway, Alternative; Humans; Influenza A virus; Influenza Vaccines; Influenza, Human; Kidney; Microvessels; Mutation; Neuraminidase; Oliguria; Plasma Exchange; Purpura, Thrombotic Thrombocytopenic; Viral Proteins
PubMed: 28884355
DOI: 10.1007/s00467-017-3783-4