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Cooper A, Ross AJ, O'Neill JA, Bishop HC, Templeton JM, Ziegler MM. Resolution of intractable cholestasis associated with total parenteral nutrition following biliary irrigation. J Pediatr Surg 1985; 20:772-4. [PMID: 3936910 DOI: 10.1016/s0022-3468(85)80042-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Although the protracted use of total parenteral nutrition (TPN) in infants is known to predispose to cholestasis, which in certain instances may not be reversible, failure to understand the pathogenesis of this condition has hindered the development of an effective medical treatment. That surgical treatment may reverse this process in selected patients is the subject of the present report. Two premature infants and one term infant, with short bowel syndrome acquired in infancy, developed conjugated hyperbilirubinemia following institution of balanced TPN. Infectious and metabolic etiologies for the jaundice were ruled out. No excretion of 99mTc-labeled DISIDA from the biliary tree was demonstrable 24 hours following injection by nuclear scintigraphy, despite the absence of extrahepatic biliary obstruction by abdominal sonography. When all conventional medical methods of managing the problem failed, exploration was performed. Intraoperative cholangiography showed normal intrahepatic and extrahepatic biliary ducts in each instance. Irrigation of the biliary tree with normal saline solution was then performed. In all cases, liver biopsies were obtained that were consistent with TPN-associated cholestasis and in all cases, jaundice resolved promptly following operation. We conclude that intractable cholestasis associated with TPN, regardless of its etiology, is a functional abnormality of biliary excretion that may respond in selected patients to irrigation of the biliary tree with radiographic dye and/or normal saline solution.
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102
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Ross AJ, O'Neill JA, Silverman DG, Brousseau DA, Gatti JE, Templeton JM. A new technique for evaluating cutaneous vascularity in complicated conjoined twins. J Pediatr Surg 1985; 20:743-6. [PMID: 4087104 DOI: 10.1016/s0022-3468(85)80037-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Ischiopagus tripus conjoined twins were recently encountered. All organ systems were thoroughly evaluated using radiographic, angiographic, radionuclide, and CT imaging techniques. None of these studies were capable of accurately assessing the vascular territories of the skin at the level of the pelvis, the most critical area in terms of separation. Qualitative visual assessment of tissue fluorescein delivery under ultraviolet illumination is subject to subjective errors. Perfusion fluorometry is a recently developed technique whereby tissue fluorescence can be quantitated over time in very small amounts, even with repeated injections. In these conjoined twins, using sequential fluorescein injections in each twin, it was possible to accurately determine which portions of the pelvis and the shared leg belonged to which twin and exactly where the skin incisions should be made. Additionally, during operation it was possible to accurately predict the viability of skin flaps used for closure. Both twins survived. This is the first time it has been possible to accurately assess vascular territories of the skin in a complicated form of conjoined twinning. The technique is also useful in the evaluation of flow patterns in various other parts of the body.
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103
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Cooper A, Floyd TF, Ross AJ, Bishop HC, Templeton JM, Ziegler MM. Morbidity and mortality of short-bowel syndrome acquired in infancy: an update. J Pediatr Surg 1984; 19:711-8. [PMID: 6440965 DOI: 10.1016/s0022-3468(84)80357-7] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The advent of total parenteral nutrition (TPN) has made survival beyond infancy possible for large numbers of patients who have sustained massive small intestinal loss due to a variety of intraabdominal catastrophes. However, the quantity and quality of life have been limited by the development of late sequelae due both to the protracted use of TPN and the long-term complications of foreshortening of the gut. To determine to what extent the morbidity and mortality of short-bowel syndrome (SBS) may have improved over the last 10 years, we reviewed our experience since 1973 with patients losing more than 50% of total small intestinal mass in infancy. The etiologies of SBS in the 16 study patients were necrotizing enterocolitis (6), midgut volvulus (5), multiple atresias (3), gastroschisis (1), and congenital SBS (1). Overall survival was 81%; total small intestinal length (SIL) at the time of diagnosis was 44.2 +/- 7.9 cm in survivors and 30.3 +/- 7.8 cm in nonsurvivors, probability values not significant. Although no patient survived without an ileocecal valve whose total SIL was greater than 20 cm, the three deaths in this series were not related directly to the SIL, but to end-stage liver disease resulting from TPN-associated cholestasis. Among the survivors, adaptation to enteral feedings required 13.8 +/- 2.5 mo, during which time weaning from TPN occurred; weight at adaptation was 6.87 +/- 1.32 kg.(ABSTRACT TRUNCATED AT 250 WORDS)
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104
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Ross AJ, Del Mauro MD, Sokoloff HK, Casey DL. Analysis of carprofen dosage forms and drug substance by high-performance liquid chromatography. J Pharm Sci 1984; 73:1211-5. [PMID: 6491938 DOI: 10.1002/jps.2600730907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A high-performance liquid chromatographic method for the analysis of carprofen in solid dosage forms and as the bulk drug substance was developed. The simple, accurate, reproducible, and stability-indicating method was shown to be applicable to drug substance and dosage form stability studies, as well as the quality control of carprofen dosage forms.
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Abstract
We report a 36-year-old woman with a cutaneous cyst of the dorsal aspect of the left foot. Because of the symptoms of pain and paresthesias attributed to the lesion, it was clinically felt to be a ganglion. After excision, these symptoms abated. Yet histologic examination showed this lesion to be a rare tumor, the ciliated cutaneous cyst. This is the third patient with this distinctive lesion on the foot or ankle.
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106
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Ross AJ, Schneider JS, Schwartz RA. An unusual granuloma in an American returning from India: a clinically resembling cutaneous leishmaniasis. ARIZONA MEDICINE 1982; 39:376-7. [PMID: 7115119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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107
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Ross AJ, Beagley HA, Sayers BM. Signal statistics in objective auditory evoked potential (AEP) detection by the phase spectral method. JOURNAL OF BIOMEDICAL ENGINEERING 1980; 2:310-4. [PMID: 7464085 DOI: 10.1016/0141-5425(80)90126-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This paper reports on statistical aspects relevant to the use of the phase spectrum of post-stimulus EEG, in objective detection of the auditory evoked potential. The sampling statistics of two statistical estimators are discussed: the mean phase vector magnitude, and the standard deviation of an ensemble of post-stimulus EEG phases. These two estimators are circular statistics, and subject to strong sample size bias. Their confidence intervals have been derived empirically for sample sizes routinely used in clinical audiometry. A trial example illustrates the use of the objective phase statistics developed here; it is noted that the method may also be more efficient than the visual scoring of averaged responses.
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108
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Wells SA, Leight GS, Ross AJ. Primary hyperparathyroidism. Curr Probl Surg 1980; 17:398-463. [PMID: 6998661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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109
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Ross AJ, Cooper CW, Ramp WK, Wells SA. Lack of direct effects of calcitonin and parathyroid hormone on in vitro secretion of one another from rat thyroparathyroid glands. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 1980; 163:315-21. [PMID: 7360761 DOI: 10.3181/00379727-163-40769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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110
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Ramp WK, Cooper CW, Ross AJ, Wells SA. Effects of calcium and cyclic nucleotides on rat calcitonin and parathyroid hormone secretion. Mol Cell Endocrinol 1979; 14:205-15. [PMID: 223903 DOI: 10.1016/0303-7207(79)90046-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recently we developed a system for studying concurrent secretion of calcitonin (CT)and parathyroid hormone(PTH)in vitro from single rat thyroparathyroid gland complexes. In the present study, mechanisms involved in secretion of CT and PTH were explored by altering the medium [Ca ] and by using the Ca antagonist, verapamil. We also re-examined the idea that cyclic nucleotides may help regulate secretion of these hormones and attempted to determine if effects of cyclic nucleotides might be altered by changes in medium [Ca]. Thyroparathyroid glands from 8-day-old rats were incubated in serum-free medium for 8h, and CT and PTH levels in the medium were measured by radioimmunoassays. We show for the first time that: (1) although low [Ca] is well known to promote PTH release, some extracellular Ca is needed for PTH secretion to occur at a maximal rate; (2) inhibition of Ca entry into cells with verapamil mimics the effects of low medium Ca on both CT and PTH release; and (3) cyclic nucleotides may exert their effects on secretion of CT and PTH at least in part via effects on Ca entry into cells.
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111
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Ross AJ, Moore HA, Ritter CO, Moros SA. Differential pulse polarographic determination of 2,3-dimercaptosuccinic acid and tin (II) in radiopharmaceuticals. J Pharm Sci 1979; 68:657-8. [PMID: 219198 DOI: 10.1002/jps.2600680541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A differential pulse polarographic procedure was developed for the assay of dimercaptosuccinic acid and tin(II), components of a commercially available pharmaceutical kit for kidney scintigraphy. The method is quantitative and qualitative for both the chelated and unchelated forms of dimercaptosuccinic acid and tin(II) in a mixture of the two.
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112
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Ross AJ, Dale JK, Gunnells JC, Wells SA. Parathyroid transplantation: fate of a long-term allograft in man. Surgery 1979; 85:382-4. [PMID: 373147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Previously our group reported clinical, histological, and biochemical evidence of parathyroid allograft survival in a patient transplanted sequentially with renal and parathyroid tissues from the same donor. After 30 months of function, both grafts were concomitantly rrjected. The prolonged parathyroid allograft survival described in certain experimental animals has been attributed to the tissue's being "immunologically privileged." Our current clinical observations do not support this hypothesis.
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113
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Abstract
A method of ERA using the Vertex potential is presented which is entirely objective. The result is given by means of a statistical evaluation which is derived automatically. The method is based on pattern analysis of the V-potential, the technique relying essentially on analysis of the phase spectrum of the appropriate Fourier components.
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114
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Ross AJ, Herr BE, Norwood ML, Donohoe KM, Moxley RT. Neuromuscular diagnostic procedures. Nurs Clin North Am 1979; 14:107-21. [PMID: 256011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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115
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Wells SA, Ross AJ, Dale JK, Gray RS. Transplantation of the parathyroid glands: current status. Surg Clin North Am 1979; 59:167-77. [PMID: 451792 DOI: 10.1016/s0039-6109(16)41742-1] [Citation(s) in RCA: 99] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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116
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Cooper CW, Ramp WK, Ross AJ, Wells SA. Concurrent secretion of calcitonin and parathyroid hormone in vitro from the rat thyroparathyroid complex. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 1978; 158:299-303. [PMID: 683997 DOI: 10.3181/00379727-158-40192] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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117
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Ross AJ, Raber MB, Kirk BW, Goldstein DH. Direct readout of respiratory impedance. MEDICAL & BIOLOGICAL ENGINEERING 1976; 14:558-64. [PMID: 979382 DOI: 10.1007/bf02478057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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118
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Keyes MC, Barron EJ, Ross AJ. Analysis of urine of the northern fur seal. J Am Vet Med Assoc 1971; 159:567-70. [PMID: 4937122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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119
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Keyes MC, Crews FW, Ross AJ. Pasteurella multocida isolated from a California sea lion (Zalophus californianus). J Am Vet Med Assoc 1968; 153:803-4. [PMID: 5692913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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120
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Ross AJ, Schoenhoff RL, Aleem MI. Electron transport and coupled phosphorylation in the chemoautotroph Thiobacillus neapolitanus. Biochem Biophys Res Commun 1968; 32:301-6. [PMID: 5672145 DOI: 10.1016/0006-291x(68)90385-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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121
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Ross AJ, Martin JE, Bressler V. Vibrio anguillarum from an epizootic in rainbow trout (Salmo gairdneri) in the U.S.A. BULLETIN - OFFICE INTERNATIONAL DES EPIZOOTIES 1968; 69:1139-48. [PMID: 5752922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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122
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123
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Ross AJ, Rucker RR, Ewing WH. Description of a bacterium associated with redmouth disease of rainbow trout (Salmo gairdneri). Can J Microbiol 1966; 12:763-70. [PMID: 6007992 DOI: 10.1139/m66-103] [Citation(s) in RCA: 84] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A description was given of a gram-negative, peritrichously flagellated, fermentative bacterium that was isolated on numerous occasions from kidney tissues of rainbow trout (Salmo gairdneri) afflicted with redmouth disease. Although the bacteria apparently were members of the family Enterobacteriaceae, it was impossible to determine their taxonomic position within the family with certainty. Hence it was recommended that their taxonomic position remain sub judice for the present. As a temporary designation RM bacterium was used.Redmouth disease was transmitted from infected to normal fish through the medium of water.
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124
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Conroy DA, Valdez IE, Ross AJ. [A note on the reactions of Mycobacterium anabanti to carbohydrates]. MICROBIOLOGIA ESPANOLA 1966; 19:115-7. [PMID: 5974259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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125
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Ross AJ. ISOLATION OF A PIGMENT-PRODUCING STRAIN OF
AEROMONAS LIQUEFACIENS
FROM SILVER SALMON (
ONCORHYNCHUS KISUTCH
). J Bacteriol 1962; 84:590-1. [PMID: 16561960 PMCID: PMC277919 DOI: 10.1128/jb.84.3.590-591.1962] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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